Construction method for single-layer hyperbolic ETFE membrane of large cantilever cable-supported lattice structure

Abstract

The present invention belongs to the technical field of ETFE film, and in particular relates to a construction method for a single-layer hyperbolic ETFE film of a large overhanging cable-supported grid structure, including a main bracket, an assembly bracket is fixedly connected above the main bracket, the assembly bracket adopts a hollow structure, and a fixing mechanism is arranged on the inner side wall of the assembly bracket; the fixing mechanism includes a support plate, a worm, a threaded rod, a fixing cylinder, a fixing roller and a limiting block, the support plate is fixedly connected to the inner side wall of the assembly bracket, a worm is rotatably connected through the middle of the support plate, and the upper end of the worm is fixedly connected with a threaded rod through a coupling. The present invention can prevent leakage caused by the generation of gaps between the ETFE film and the assembly bracket, effectively ensuring the tightness of the installation of the ETFE film; by using different degrees of tensile force to improve the wind pressure resistance of the ETFE film itself, avoiding wrinkling during use; protecting the upper part of the EFTE film to avoid damage to the film by birds and improving the strength of the measures to prevent bird damage.

Description

Technical Field

[0001] The invention belongs to the technical field of ETFE membranes, and particularly relates to a construction method for a single-layer hyperbolic ETFE membrane of a large overhanging cable-supported grid structure. Background Art

[0002] For a large-opening spoke-shaped cable-supported grid structure, a rigid grid structure with a large opening is used as the upper chord, and a spoke-shaped cable-bar system is used as the lower chord; the spoke-shaped cable-bar system uses the upper-chord rigid grid as a compression ring, and supports the upper-chord rigid grid through struts to form a self-balanced system, which is suitable for large-span roofs such as stadiums and football fields; the Chinese name of ETFE is ethylene-tetrafluoroethylene copolymer. ETFE is a colorless, transparent granular crystal, which has excellent abrasion resistance, wear resistance, high temperature resistance and corrosion resistance, and has good insulation performance, and can be used as a cable sheath or a pipe lining.

[0003] However, the existing construction methods for single-layer hyperbolic ETFE membranes of large overhanging cable-supported grid structures often have the following problems when in use:

[0004] There is a certain leakage phenomenon at the junction of the membrane and the metal keel;

[0005] Insufficient wind resistance leads to membrane deformation, the membrane is pulled up and wrinkled, and the set shape cannot be blown out;

[0006] The anti-bird measures for the membrane are not in place, and there is a certain degree of bird damage. These technical drawbacks have become problems that need to be solved urgently. Summary of the Invention

[0007] The purpose of the invention is to provide a construction method for a single-layer hyperbolic ETFE membrane of a large overhanging cable-supported grid structure that can effectively prevent leakage at the membrane installation connection, improve the fixed wind resistance performance of the EFTE membrane, and enhance the anti-bird damage strength in view of the problems of easy leakage at the membrane installation connection, deformation and wrinkling of the EFTE membrane due to insufficient wind resistance, and insufficient anti-bird measures in the above background art.

[0008] To achieve the above object, the invention adopts the following technical scheme: A construction method for a single-layer hyperbolic ETFE membrane of a large overhanging cable-supported grid structure, and the specific construction method is as follows:

[0009] S1. First, attach the ETFE membrane material to the surface of the rotating roller and fix it on the fixed roller. By adjusting the rotation of the worm and the threaded rod multiple times, the fixed roller pulls the ETFE membrane material, thereby improving the wind resistance of the membrane material and completing the laying;

[0010] S2. Drive the lead screw to rotate by the rotation of the worm, so that the nut pushes the buffer plate through the sleeve rod and the sleeve, and the buffer plate tightly attaches the ETFE membrane material to the inner side of the assembly bracket;

[0011] After the installation of the ETFE membrane material is completed, install the waterproof curtain above the assembly bracket and the box body, and seal the side of the waterproof curtain with the ETFE membrane material;

[0012] S4. Drive the rotating rod and the rotating blade to rotate by starting the motor to prevent the damage of birds, and improve the protection space of the structure through the anti-bird spines and ultrasonic probes on the straight rod.

[0013] During the construction process of the above large overhanging cable-supported grid structure single-layer hyperbolic ETFE membrane, a large overhanging cable-supported grid structure is also involved. The large overhanging cable-supported grid structure includes a main bracket, an assembly bracket is fixedly connected above the main bracket, the assembly bracket adopts a hollow structure, and a fixing mechanism is arranged on the inner side wall of the assembly bracket;

[0014] The fixing mechanism includes a support plate, a worm, a threaded rod, a fixing cylinder, a fixing roller and a limiting block. The support plate is fixedly connected to the inner side wall of the assembly bracket. The middle part of the support plate is rotatably connected through the worm. The upper end of the worm is fixedly connected to the threaded rod through a coupling. The threaded rod is threadedly connected with the fixing cylinder. A fixing roller is installed inside the fixing cylinder. A limiting block is fixedly connected to the inner side wall of the assembly bracket above the support plate. The limiting block fits with the outer side wall of the fixing cylinder;

[0015] A support frame is fixedly connected to the side of the support plate. A leak-proof mechanism is arranged on the support frame. A box body is fixedly connected inside the assembly bracket. An anti-bird mechanism is arranged on the top of the box body.

[0016] Furthermore, the leak-proof mechanism includes a transfer shaft, a worm gear, a first gear, a lead screw, a second gear, a nut, a sleeve rod, a sleeve, a compression spring and a buffer plate. The transfer shaft is rotatably connected to the inner side wall of the assembly bracket. A worm gear is fixedly connected to the transfer shaft. The worm gear meshes with the worm. A first gear is fixedly connected to the end of the transfer shaft. A lead screw is rotatably connected to the upper end of the support frame. A second gear is fixedly connected to the lead screw. The first gear meshes with the second gear. A nut is threadedly connected to the lead screw. A plurality of sleeve rods are fixedly connected to the nut. A sleeve is slidably connected to the sleeve rod. A compression spring is sleeved on each sleeve rod. A buffer plate is fixedly connected to the end of the sleeve.

[0017] Furthermore, the anti-bird mechanism includes a motor, a rotating rod, a rotating blade, a straight rod, anti-bird spines and an ultrasonic probe. The motor is fixedly connected to the inner bottom surface of the box body. The rotating rod is rotatably connected through the top of the box body. The lower end of the rotating rod is fixedly connected to the output end of the motor. A rotating blade is fixedly connected to the end of the rotating rod above the box body. A straight rod is fixedly connected to the circumferential side wall of the rotating rod. A plurality of anti-bird spines are fixedly connected to the straight rod. An ultrasonic probe is arranged at the end of the straight rod.

[0018] Further, a sliding rod is fixedly connected to the support frame, a slider is slidably connected to the sliding rod, and the slider is fixedly connected to the nut through a fixing rod.

[0019] Further, a rubber buffer pad is arranged on the surface of the buffer plate.

[0020] Further, a nut is fixedly connected to the end of the worm below the support plate, and the nut is arranged in a hexagonal structure.

[0021] Further, a threaded hole is formed at the bottom of the fixed cylinder, and the threaded rod is threadedly connected to the threaded hole.

[0022] Further, a rotating roller is rotatably connected to the top of the assembly bracket, an EFTE film is fixedly connected to the circumferential side wall of the fixed roller, and the EFTE film is attached to the surface of the rotating roller.

[0023] Further, a film unfolding platform is fixedly connected to the outer side wall of the assembly bracket, and a waterproof curtain is installed above the assembly bracket.

[0024] Compared with the existing technology, the advantages of the construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film of the present invention are as follows:

[0025] By setting a leak prevention mechanism, during the installation process, the ETFE film is attached to the inner surface of the assembly bracket through the buffer plate, preventing leakage caused by the generation of gaps between the ETFE film and the assembly bracket, and effectively ensuring the tightness of the installation of the ETFE film.

[0026] By setting a fixing mechanism, the ETFE film is subjected to different degrees of tension by adjusting the threaded rod multiple times, thereby improving the wind pressure resistance of the ETFE film itself and avoiding wrinkling during use.

[0027] By setting a bird prevention mechanism, the rotating rotating blades are used to protect the upper part of the EFTE film, avoiding damage to the film by birds. At the same time, the space of the protection is increased through the bird spikes and ultrasonic probes, thereby improving the strength of the bird damage prevention measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic flow chart of the steps of a construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film provided by the present invention;

[0029] Figure 2 is a schematic diagram of the main view structure analysis of the connection point of a large overhanging cable-supported grid structure provided by the present invention;

[0030] Figure 3 is Figure 2 the enlarged view of part A of

[0031] Figure 4 It is a schematic structural diagram of a leakage prevention mechanism part in a large overhanging cable-supported grid structure provided by the present invention;

[0032] Figure 5 It is a schematic diagram of the structural analysis of a bird prevention mechanism part in a large overhanging cable-supported grid structure provided by the present invention.

[0033] In the figure, 1 is the main bracket; 2 is the assembly bracket; 3 is the fixing mechanism, 31 is the support plate, 32 is the worm, 33 is the threaded rod, 34 is the fixing cylinder, 35 is the fixing roller, 36 is the limit block; 4 is the support frame; 5 is the leakage prevention mechanism, 51 is the transfer shaft, 52 is the worm gear, 53 is the first gear, 54 is the lead screw, 55 is the second gear, 56 is the nut, 57 is the sleeve rod, 58 is the sleeve, 59 is the compression spring, 510 is the buffer plate; 6 is the box body; 7 is the bird prevention mechanism, 71 is the motor, 72 is the rotating rod, 73 is the rotating blade, 74 is the straight rod, 75 is the bird repellent thorn, 76 is the ultrasonic probe; 8 is the sliding rod; 9 is the slider; 10 is the nut; 11 is the rotating roller; 12 is the ETFE film material; 13 is the film unfolding platform; 14 is the waterproof curtain. Embodiment

[0034] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0035] As Figure 1 shown, a construction method for a single-layer double-curved ETFE film of a large overhanging cable-supported grid structure is as follows:

[0036] S1. First, attach the ETFE film material 12 to the surface of the rotating roller 11 and fix it on the fixing roller 35. By adjusting the rotation of the worm 32 and the threaded rod 33 multiple times, the fixing roller 35 pulls the ETFE film material 12, thereby improving the wind resistance of the film material and completing the laying;

[0037] S2. Drive the lead screw 54 to rotate by the rotation of the worm 32, so that the nut 56 pushes the buffer plate 510 through the sleeve rod 57 and the sleeve 58, and the buffer plate 510 tightly attaches the ETFE film material 12 to the inner side of the assembly bracket 2;

[0038] S3. After the installation of the ETFE film material 12 is completed, install the waterproof curtain 14 above the assembly bracket 2 and the box body 6, and make the side of the waterproof curtain 14 be sealed and connected with the ETFE film material 12;

[0039] S4. Start the motor 71 to drive the rotating rod 72 and the rotating blade 73 to rotate to prevent bird damage, and use the bird repellent thorn 75 and the ultrasonic probe 76 on the straight rod 74 to enhance the protective space of the structure.

[0040] As Figure 2 and Figure 3As shown in the figure, during the construction of the single-layer double-curved ETFE membrane of the large overhanging cable-supported grid structure, a large overhanging cable-supported grid structure is also involved, including a main support 1. An assembly support 2 is fixedly connected above the main support 1. A rotating roller 11 is rotatably connected to the top of the assembly support 2. An EFTE membrane material 12 is fixedly connected to the circumferential side wall of the fixed roller 35. The EFTE membrane material 12 is attached to the surface of the rotating roller 11. A film-unfolding platform 13 is fixedly connected to the outer side wall of the assembly support. A waterproof curtain 14 is installed above the assembly support 2. The assembly support 2 has a hollow structure, and a fixing mechanism 3 is arranged on the inner side wall of the assembly support 2; the fixing mechanism 3 includes a support plate 31, a worm 32, a threaded rod 33, a fixing cylinder 34, a fixed roller 35 and a limiting block 36. The support plate 31 is fixedly connected to the inner side wall of the assembly support 2. The worm 32 is rotatably connected through the middle of the support plate 31. A nut 10 is fixedly connected to the end of the worm 32 below the support plate 31. The nut 10 is arranged in a hexagonal structure. The upper end of the worm 32 is fixedly connected to the threaded rod 33 through a coupling. A threaded hole is opened at the bottom of the fixing cylinder 34. The threaded rod 33 is threadedly connected to the threaded hole. The threaded rod 33 is threadedly connected to the fixing cylinder 34. A fixed roller 35 is installed inside the fixing cylinder 34. A limiting block 36 is fixedly connected to the inner side wall of the assembly support 2 above the support plate 31. The limiting block 36 is attached to the outer side wall of the fixing cylinder 34;

[0041] First, lay the ETFE membrane material 12 on the film-unfolding platform 13, and then make the ETFE membrane material 12 fit on the surface of the rotating roller 11 and fix the side of the ETFE membrane material 12 on the fixing cylinder 34. Rotate the worm 32 to drive the threaded rod 33 to rotate. Since the threaded rod 33 is threadedly connected to the threaded hole at the bottom of the fixing cylinder 34, the rotation of the threaded rod 33 drives the fixing cylinder 34 to move downward, and then the fixed roller 35 inside the fixing cylinder 34 pulls the ETFE membrane material 12. In addition, since the limiting block 36 is attached to the outer wall of the fixing cylinder 34, the fixing cylinder 34 can move vertically downward without deviation, ensuring the smoothness of the stretching and unfolding of the ETFE membrane material 12. By adjusting the threaded rod 33 multiple times, different degrees of tension are generated on the ETFE membrane material 12, thereby enhancing the wind pressure resistance of the ETFE membrane material 12 itself and avoiding wrinkling during use.

[0042] As Figure 2 and Figure 4As shown, a support frame 4 is fixedly connected to the side of the support plate 31, and a leak prevention mechanism 5 is provided on the support frame 4. The leak prevention mechanism 5 includes a transfer shaft 51, a worm gear 52, a first gear 53, a lead screw 54, a second gear 55, a nut 56, a sleeve rod 57, a sleeve 58, a compression spring 59, and a buffer plate 510. The transfer shaft 51 is rotatably connected to the inner wall of the assembly bracket 2, and a worm gear is fixedly connected to the transfer shaft 51. The worm gear 52 meshes with the worm 32. A first gear 53 is fixedly connected to the end of the transfer shaft 51. A lead screw 54 is rotatably connected to the upper end of the support frame 4, and a second gear 55 is fixedly connected to the lead screw 54. The first gear 53 meshes with the second gear 55. A nut 56 is threadedly connected to the lead screw 54. A slide bar 8 is fixedly connected to the support frame 4, and a slider 9 is slidably connected to the slide bar 8. The slider 9 is fixedly connected to the nut 56 through a fixing rod. A plurality of sleeve rods 57 are fixedly connected to the nut 56. A sleeve 58 is slidably connected to the sleeve rod 57. A compression spring 59 is sleeved on each sleeve rod 57. A buffer plate 510 is fixedly connected to the end of the sleeve 58. A rubber buffer pad is provided on the surface of the buffer plate 510;

[0043] During the rotation of the worm 32, since the worm 32 meshes with the worm gear 52, the worm 32 drives the worm gear 52 and the transfer shaft 51 to rotate, and drives the lead screw 54 to rotate through the meshing first gear 53 and second gear 55. Furthermore, the nut 56 threadedly connected to the lead screw 54 moves, thereby driving the sleeve 58 and the buffer plate 510 to gradually approach the EFTE film 12 through the sleeve rod 57, and making the buffer plate 510 tightly fit the EFTE film to the inner side of the assembly bracket 2. Since the compression spring 59 in a compressed state on the sleeve rod 57 provides a buffer elastic force at this time, the EFTE film 12 can be stably attached to the assembly bracket 2, preventing leakage from occurring due to the generation of gaps between the ETFE film 12 and the assembly bracket 2, and effectively ensuring the tightness of the installation of the ETFE film 12.

[0044] As Figure 2 and Figure 5 As shown, a box body 6 is fixedly connected to the inside of the assembly bracket 2, and a bird prevention mechanism 7 is provided on the top of the box body 6. The bird prevention mechanism 7 includes a motor 71, a rotating rod 72, a rotating blade 73, a straight rod 74, a bird spike 75, and an ultrasonic probe 76. The motor 71 is fixedly connected to the inner bottom surface of the box body 6. The rotating rod 72 is rotatably connected through the top of the box body 6. The lower end of the rotating rod 72 is fixedly connected to the output end of the motor 71. A rotating blade 73 is fixedly connected to the end of the rotating rod 72 above the box body 6. A straight rod 74 is fixedly connected to the circumferential side wall of the rotating rod 72. A plurality of bird spikes 75 are fixedly connected to the straight rod 74. An ultrasonic probe 76 is provided at the end of the straight rod 74;

[0045] After the installation of the ETFE film material 12 is completed, the motor 71 is started through an external power supply, so that the output end of the motor 71 drives the rotating rod 72 to rotate, and then the rotating blade 73 fixed to the upper end of the rotating rod 72 rotates, thereby using the rotating blade 73 to protect the upper part of the assembly bracket 2, avoiding damage to the ETFE film material 12 and the waterproof curtain 14 by birds. At the same time, the rotating anti-bird spikes 75 and ultrasonic probes 76 improve the protected space, thereby enhancing the strength of the measures to prevent bird damage.

[0046] The working principle of the present invention is as follows:

[0047] During use, first, the ETFE film material 12 is laid on the film-unfolding platform 13, and then the ETFE film material 12 is attached to the surface of the rotating roller 11 and the side of the ETFE film material 12 is fixed to the fixed cylinder 34. By rotating the worm 32, the threaded rod 33 is driven to rotate. Since the threaded rod 33 is threadedly connected to the threaded hole at the bottom of the fixed cylinder 34, the rotation of the threaded rod 33 drives the fixed cylinder 34 to move downward, and then the fixed roller 35 inside the fixed cylinder 34 pulls the ETFE film material 12. In addition, since the limiting block 36 is attached to the outer wall of the fixed cylinder 34, the fixed cylinder 34 can move vertically downward without deviation, ensuring the smoothness of the stretching and unfolding of the ETFE film material 12. By adjusting the threaded rod 33 multiple times, different degrees of tension are generated on the ETFE film material 12, thereby enhancing the wind pressure resistance of the ETFE film material 12 itself and avoiding wrinkling during use.

[0048] During the rotation of the worm 32, since the worm 32 meshes with the worm gear 52, the worm 32 drives the worm gear 52 and the transfer shaft 51 to rotate, and drives the lead screw 54 to rotate through the mutually meshing first gear 53 and second gear 55. Then, the nut 56 threadedly connected to the lead screw 54 moves, and thus the sleeve rod 57 drives the sleeve 58 and the buffer plate 510 to gradually approach the EFTE film material 12, and the buffer plate 510 tightly attaches the EFTE film to the inner side of the assembly bracket 2. Since the compression spring 59 in a compressed state on the sleeve rod 57 provides a buffer elastic force at this time, the EFTE film material 12 can be stably attached to the assembly bracket 2, preventing leakage due to the generation of gaps between the ETFE film material 12 and the assembly bracket 2, and effectively ensuring the tightness of the installation of the ETFE film material 12.

[0049] After the installation of the ETFE film material 12 is completed, the motor 71 is started through an external power supply, so that the output end of the motor 71 drives the rotating rod 72 to rotate, and then the rotating blade 73 fixed to the upper end of the rotating rod 72 rotates, thereby using the rotating blade 73 to protect the upper part of the assembly bracket 2, avoiding damage to the ETFE film material 12 and the waterproof curtain 14 by birds. At the same time, the rotating anti-bird spikes 75 and ultrasonic probes 76 improve the protected space, thereby enhancing the strength of the measures to prevent bird damage.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Construction method for single - layer hyperbolic ETFE membrane of large - overhanging cable - supported grid structure Characterized in that: The specific construction method is as follows: S1. First, attach the ETFE membrane material (12) to the surface of the rotating roller (11) and fix it on the fixed roller (35). By adjusting the rotation of the worm (32) and the threaded rod (33) multiple times, the fixed roller (35) pulls the ETFE membrane material (12), thereby enhancing the wind resistance of the membrane material and completing the laying; S2. Drive the screw rod (54) to rotate by the rotation of the worm (32), so that the nut (56) pushes the buffer plate (510) through the sleeve rod (57) and the sleeve (58), and the buffer plate (510) tightly attaches the ETFE membrane material (12) to the inner side of the assembly bracket (2); S3. After the installation of the ETFE membrane material (12) is completed, install the waterproof curtain (14) above the assembly bracket (2) and the box body (6), and seal - connect the side of the waterproof curtain (14) with the ETFE membrane material (12); S4. Drive the rotating rod (72) and the rotating blade (73) to rotate by starting the motor (71) to prevent bird damage, and enhance the protected space of the structure through the anti - bird thorns (75) and ultrasonic probes (76) on the straight rod (74); The above - mentioned construction method for single - layer hyperbolic ETFE membrane of large - overhanging cable - supported grid structure includes a large - overhanging cable - supported grid structure. The large - overhanging cable - supported grid structure includes a main bracket (1), an assembly bracket (2) is fixedly connected above the main bracket (1), the assembly bracket (2) adopts a hollow structure, and a fixing mechanism (3) is arranged on the inner side wall of the assembly bracket (2); The fixing mechanism (3) includes a support plate (31), a worm (32), a threaded rod (33), a fixing cylinder (34), a fixed roller (35) and a limit block (36). The support plate (31) is fixedly connected to the inner side wall of the assembly bracket (2), the worm (32) is rotatably connected through the middle of the support plate (31), the upper end of the worm (32) is fixedly connected with the threaded rod (33) through a coupling, the threaded rod (33) is threadedly connected with the fixing cylinder (34), the fixed roller (35) is installed inside the fixing cylinder (34), a limit block (36) is fixedly connected above the support plate (31) on the inner side wall of the assembly bracket (2), and the limit block (36) is attached to the outer side wall of the fixing cylinder (34); A support frame (4) is fixedly connected to the side of the support plate (31), a leak - prevention mechanism (5) is arranged on the support frame (4), a box body (6) is fixedly connected inside the assembly bracket (2), and an anti - bird mechanism (7) is arranged on the top of the box body (6); The leak-proof mechanism (5) includes a transfer shaft (51), a worm gear (52), a first gear (53), a lead screw (54), a second gear (55), a nut (56), a sleeve rod (57), a sleeve (58), a compression spring (59), and a buffer plate (510). The transfer shaft (51) is rotatably connected to the inner side wall of the assembly bracket (2). A worm gear is fixedly connected to the transfer shaft (51). The worm gear (52) meshes with a worm (32). A first gear (53) is fixedly connected to the end of the transfer shaft (51). A lead screw (54) is rotatably connected to the upper end of the support frame (4). A second gear (55) is fixedly connected to the lead screw (54). The first gear (53) meshes with the second gear (55). A nut (56) is threadedly connected to the lead screw (54). A plurality of sleeve rods (57) are fixedly connected to the nut (56). A sleeve (58) is slidably connected to the sleeve rod (57). A compression spring (59) is sleeved on each sleeve rod (57). A buffer plate (510) is fixedly connected to the end of the sleeve (58).

2. The construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film according to claim 1, characterized in that, the bird-proof mechanism (7) includes a motor (71), a rotating rod (72), a rotating blade (73), a straight rod (74), bird spikes (75), and an ultrasonic probe (76). The motor (71) is fixedly connected to the inner bottom surface of the box body (6). The top of the box body (6) is rotatably connected through the rotating rod (72). The lower end of the rotating rod (72) is fixedly connected to the output end of the motor (71). A rotating blade (73) is fixedly connected to the end of the rotating rod (72) above the box body (6). A straight rod (74) is fixedly connected to the circumferential side wall of the rotating rod (72). A plurality of bird spikes (75) are fixedly connected to the straight rod (74). An ultrasonic probe (76) is arranged at the end of the straight rod (74).

3. The construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film according to claim 1, characterized in that, a sliding rod (8) is fixedly connected to the support frame (4). A slider (9) is slidably connected to the sliding rod (8). The slider (9) is fixedly connected to the nut (56) through a fixing rod.

4. The construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film according to claim 1, characterized in that, a rubber buffer pad is arranged on the surface of the buffer plate (510).

5. The construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film according to claim 1, characterized in that, a nut (10) is fixedly connected to the end of the worm (32) below the support plate (31). The nut (10) is arranged in a hexagonal structure.

6. The construction method of a large overhanging cable-supported grid structure single-layer double-curved ETFE film according to claim 1, characterized in that, a threaded hole is opened at the bottom of the fixed cylinder (34). The threaded rod (33) is threadedly connected to the threaded hole.

7. A construction method for a single-layer hyperbolic ETFE membrane of a large overhanging cable-supported grid structure according to claim 1, characterized in that, a rotating roller (11) is rotatably connected to the top of the assembly bracket (2), an ETFE membrane material (12) is fixedly connected to the circumferential side wall of the fixed roller (35), and the ETFE membrane material (12) is attached to the surface of the rotating roller (11).

8. A construction method for a single-layer hyperbolic ETFE membrane of a large overhanging cable-supported grid structure according to claim 1, characterized in that, a film unfolding platform (13) is fixedly connected to the outer side wall of the assembly bracket, and a waterproof curtain (14) is installed above the assembly bracket (2).

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