Plastic formwork structure suitable for complex building and using method

Abstract

The invention provides a plastic formwork structure suitable for complex buildings and a using method, and belongs to the technical field of building formworks, the plastic formwork structure comprises a universal corner formwork assembly, a universal internal corner formwork, a universal internal corner corner formwork and an arc forming formwork, and the universal corner formwork assembly is composed of a first formwork, a second formwork and an adjusting assembly. According to the invention, the plastic templates with four structural forms of the universal corner template assembly, the universal internal corner template, the universal internal corner corner template and the arc molding plastic template are arranged, so that a special complex building structure which cannot be spliced and molded by a conventional plastic template can be solved, and template splicing and molding of the complex building structure can be quickly realized; the production efficiency can be remarkably improved, meanwhile, the universal angle formwork assembly capable of conducting angle adjustment according to an actual building is arranged, rapid adjustment can be conducted according to the angle of a building face in the using process, the universal angle formwork assembly does not need to be manufactured again, and therefore the practical range of the universal angle formwork assembly is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of building formwork, and more particularly to a plastic formwork structure suitable for complex buildings and its usage method. Background Art

[0002] Building plastic formwork is a new type of green environmental protection product, and is a new generation product following wooden formwork, combined steel formwork, bamboo-wood glued formwork, and aluminum formwork. To a certain extent, it can replace traditional steel formwork, aluminum formwork, wooden formwork, and square timbers, and has the advantages of energy conservation, environmental protection, recyclability, and low amortization cost.

[0003] In the prior art, the structure of conventional plastic formwork is similar to that of aluminum alloy formwork, generally including structural forms such as flat formwork, external corner formwork, internal corner formwork, and internal corner turning formwork. In actual use, formwork of various structural forms or sizes are spliced and combined. These conventional plastic formworks can be formed into structures such as planes, vertical beam columns, and cross intersections through splicing and combination, and can solve the construction projects of simple structures such as conventional building structures, pipe galleries, drainage ditches, tunnels, culverts, shear walls, and bridges.

[0004] However, for some special occasions or complex structure forming surfaces, such as triangular cross inclined beam columns, stairs, cantilevers, and complex basement structures, conventional plastic formwork cannot achieve the structure forming of such buildings. How to invent a plastic formwork structure suitable for complex buildings and its usage method to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] To make up for the above deficiencies, the present invention provides a plastic formwork structure suitable for complex buildings and its usage method, aiming to solve the problem that conventional plastic formwork cannot achieve the structure forming of such buildings for special occasions or complex structure forming surfaces.

[0006] The present invention is implemented as follows: The present invention provides a plastic formwork structure suitable for complex buildings, including a universal corner formwork assembly, a universal internal corner formwork, a universal internal corner turning formwork, and an arc forming formwork. The universal corner formwork assembly is composed of a first formwork, a second formwork, and an adjusting assembly.

[0007] Preferably, the first template and the second template are formed by cutting a common planar template. The universal internal corner template is composed of two first forming surfaces and five first connecting surfaces. The universal internal corner template is formed by cutting off the corner of one planar template and fixing it to another planar template. The universal internal corner turning template is composed of three second forming surfaces and four second connecting surfaces. The universal internal corner turning template is formed by fixedly connecting a common internal corner template and a planar template. The arc forming template is formed by rolling a planar template through a rolling press. The arc forming template includes one third forming surface and four third connecting surfaces.

[0008] Preferably, one end of the second template is rotatably connected to a rotating shaft that is rotatably connected to the inner wall of one end of the first template. The adjusting component in the universal angle template assembly includes a first arc plate fixed to the side wall of the first template and a second arc plate fixed to the side wall of the second template. Symmetric racks are fixedly connected to the side wall of the first arc plate. Fixing plates are fixedly connected to both side walls at one end of the second arc plate. Two ear plates are fixedly connected to the outer wall of the upper fixing plate.

[0009] Preferably, a worm is rotatably connected between the ear plates. A knob is fixedly connected to one end of the worm. A shaft gear that meshes with the rack is fixedly connected between the two fixing plates. A worm gear that meshes with the worm is fixedly connected to the end of the shaft gear that passes through the upper fixing plate.

[0010] Preferably, an adjusting groove is formed in the side wall of the first arc plate between the two racks. An elastic band is fixedly connected to the inner wall of the adjusting groove. An annular groove is formed in the side wall of the shaft gear close to the adjusting groove. A plurality of upper and lower groups of grooves are formed in the side wall of the annular groove. A piston rod is fixedly connected to the inner wall of the groove.

[0011] Preferably, a sleeve rod is slidably connected to the inner wall of the groove. The inner wall of the sleeve rod is piston-connected to the outer wall of the piston rod. Air holes facing upward are formed in the side walls of one ends of the plurality of sleeve rods close to the upper end. Air holes facing downward are formed in the side walls of one ends of the plurality of sleeve rods close to the lower end. A spring is fixedly connected between one end of the piston rod and the inner wall of one end of the sleeve rod.

[0012] Preferably, a convex block is fixedly connected to the outer wall of the first arc plate close to the rack. A storage groove is formed inside the convex block. Lubricating oil is filled in the storage groove. A plurality of connecting pieces are fixedly connected to the side wall of the elastic band at equal intervals. A sealing rod that is piston-connected to the inner wall of the storage groove is fixedly connected to one side of the connecting piece. Holes corresponding to the connecting pieces one by one are formed in the side wall of the storage groove close to the rack. One end of the sealing rod abuts against the inner wall of the hole.

[0013] Preferably, an adjusting piece is slidably connected to the inner wall of the adjusting groove. One end of the adjusting piece is fixedly connected to an adjusting ring. A screw rod is rotatably connected to the inner wall of the adjusting ring. The outer wall of the screw rod is threadedly connected to the inner wall of the first arc plate. A sliding groove slidably connected to the outer wall of the screw rod is formed in the side wall of the second arc plate.

[0014] A using method of a plastic formwork structure applicable to complex buildings is characterized by comprising the following steps: S1: When the universal angle formwork assembly is used, the worm is rotated through a knob according to the angle of the building surface to engage the worm wheel and drive the shaft gear to rotate. While the shaft gear rotates, it engages the rack on the side wall of the first arc plate, so that the first arc plate drives the first formwork at one end to rotate, thereby realizing the opening and closing between the first formwork and the second formwork. Then, the forming surfaces of the first formwork and the second formwork ensure the forming of the building surface, and at the same time, the splicing with other forming formworks is realized through a plurality of surrounding connecting surfaces; S2: The universal inside corner formwork first cuts the large plane formwork according to the shape of the actual building, then cuts the smaller plane formwork, and finally bonds and fixes the two cut plane formworks. The building is formed through the first forming surface, and the splicing with the surrounding formworks is realized through a plurality of first connecting surfaces; S3: The universal inside corner turning formwork first cuts the conventional inside corner formwork according to the shape of the actual building, then cuts the small plane formwork according to the length of the inside corner to be formed after cutting, and then bonds and fixes the two. While the three second forming surfaces realize the forming of the inside corner turning at any angle, the splicing with the surrounding formworks is realized through a plurality of second connecting surfaces; S4: For the arc forming formwork, according to the arc shape of the actual building, the plane formwork is first heated, and then the arc forming is realized by using a rolling press according to the size of the arc. The forming of any building arc surface is realized through the third forming surface, and the connection with the surrounding formworks is realized through the third connecting surface.

[0015] The beneficial effects of the present invention are: The plastic formworks of four structural forms, namely, the universal angle formwork assembly, the universal inside corner formwork, the universal inside corner turning formwork and the arc forming plastic formwork, are provided, which can solve the special complex building structures that cannot be spliced and formed by conventional plastic formworks, can quickly realize the formwork splicing and forming of complex building structures, and can significantly improve the production efficiency; The universal angle formwork component that can be adjusted according to the actual building is set at the same time. During use, it can be quickly adjusted according to the angle of the building surface without remaking the universal angle formwork component, thereby improving its practical range. At the same time, the cleaning component set in the adjustment component continuously blows air at the meshing transmission part during the adjustment process, so as to clean fine dust and sundries, reduce the adverse effects of impurities on the meshing transmission, ensure the transmission effect between the gear and the toothed ring, and improve the sensitivity of the adjustment process; And the lubricating component set controls the overflow of lubricating oil while blowing air, making it flow to the meshing transmission part to form an oil film on the surface, preventing air, moisture, etc. from contacting the metal surface of the gear, thereby preventing the gear from corroding and rusting, protecting the performance and life of the gear. At the same time, the oil film of the lubricating oil separates the originally directly contacting metal surfaces, reduces the friction coefficient between the rack and the shaft teeth, further improves the transmission effect, and ensures the continuous progress of the adjustment process. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the universal internal corner formwork structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 2 It is another angle structure schematic diagram of the universal internal corner formwork structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 3 It is a schematic diagram of the universal internal corner turning formwork structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 4 It is another angle structure schematic diagram of the universal internal corner turning formwork in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 5 It is a schematic diagram of the arc forming formwork structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 6 It is a schematic diagram of the universal angle formwork component structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 7It is a cross-sectional view of the universal corner formwork component structure in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 8 It is a schematic structural diagram of the adjustment component in the universal corner formwork component in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 9 It is a schematic structural diagram of the shaft gear in the universal corner formwork component in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 10 It is a cross-sectional view of the shaft gear structure in the universal corner formwork component in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 11 It is a cross-sectional view of the adjustment component structure in the universal corner formwork component in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 12 It is the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention Figure 11 Enlarged view of the structure of area A; Figure 13 It is the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention Figure 11 Enlarged view of the structure of area B; Figure 14 It is a half-sectional view of the adjustment component structure in the universal corner formwork component in the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention; Figure 15 It is the plastic formwork structure and its usage method applicable to complex buildings provided by the embodiment of the present invention Figure 14 Enlarged view of the structure of area C.

[0018] In the figure: 1. Universal corner formwork component; 11. First formwork; 12. Second formwork; 121. Rotating shaft; 2. Universal female corner formwork; 21. First forming surface; 22. First connecting surface; 3. Universal female corner turning formwork; 31. Second forming surface; 32. Second connecting surface; 4. Arc forming formwork; 41. Third forming surface; 42. Third connecting surface; 5. First arc plate; 51. Protrusion; 511. Storage groove; 512. Hole; 52. Rack; 53. Adjustment groove; 531. Elastic band; 54. Connecting piece; 541. Sealing rod; 55. Adjusting piece; 551. Adjusting ring; 56. Screw; 6. Second arc plate; 61. Sliding groove; 62. Fixed plate; 63. Ear plate; 64. Worm; 641. Knob; 65. Shaft gear; 651. Ring groove; 652. Groove; 66. Piston rod; 67. Sleeve rod; 671. Air hole; 672. Spring; 68. Worm gear. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] Example, refer to Figures 1-15 , a plastic formwork structure applicable to complex buildings, including a universal corner formwork assembly 1, a universal inside corner formwork 2, a universal inside corner turning formwork 3 and an arc forming formwork 4; the universal corner formwork assembly 1 is composed of a first formwork 11, a second formwork 12 and an adjusting assembly.

[0021] Furthermore; the first formwork 11 and the second formwork 12 are formed by cutting ordinary flat formworks. The universal inside corner formwork 2 is composed of two first forming surfaces 21 and five first connecting surfaces 22. The universal inside corner formwork 2 is formed by cutting off the corner of one flat formwork and fixing it to another flat formwork. The universal inside corner turning formwork 3 is composed of three second forming surfaces 31 and four second connecting surfaces 32. The universal inside corner turning formwork 3 is formed by fixedly connecting an ordinary inside corner formwork and a flat formwork. The arc forming formwork 4 is formed by rolling a flat formwork into an arc surface by a rolling press. The arc forming formwork 4 includes a third forming surface 41 and four third connecting surfaces 42. One end of the second formwork 12 is rotatably connected to a rotating shaft 121 that is rotatably connected to the inner wall of one end of the first formwork 11. The adjusting assembly in the universal corner formwork assembly 1 includes a first arc plate 5 fixed to the side wall of the first formwork 11 and a second arc plate 6 fixed to the side wall of the second formwork 12. Symmetrical racks 52 are fixedly connected to the side wall of the first arc plate 5. Fixed plates 62 are fixedly connected to both side walls of one end of the second arc plate 6. Two ear plates 63 are fixedly connected to the outer wall of the upper fixed plate 62. A worm 64 is rotatably connected between the ear plates 63. One end of the worm 64 is fixedly connected to a knob 641. A shaft gear 65 that meshes with the rack 52 is fixedly connected between the two fixed plates 62. One end of the shaft gear 65 passing through the upper fixed plate 62 is fixedly connected to a worm gear 68 that meshes with the worm 64; The first arc plate 5 is provided with an adjustment groove 53 near the side wall between the two racks 52. An elastic band 531 is fixedly connected to the inner wall of the adjustment groove 53. A ring groove 651 is provided on the side wall of the shaft tooth 65 near the adjustment groove 53. Two sets of multiple grooves 652 are provided on the side wall of the ring groove 651. A piston rod 66 is fixedly connected to the inner wall of the groove 652. A sleeve rod 67 is slidably connected to the inner wall of the groove 652. The inner wall of the sleeve rod 67 and the outer wall of the piston rod 66 are connected by a piston. One end side wall of the multiple sleeve rods 67 near the upper end is provided with upward air holes 671. One end side wall of the multiple sleeve rods 67 near the lower end is provided with downward air holes 671. One end of the piston rod 66 and a spring 672 fixedly connected to the inner wall of one end of the sleeve rod 67.

[0022] It should be noted that: The universal angle formwork assembly 1 can realize the pouring and forming of any angled building surface. The universal inside corner formwork 2 is formed by combining two conventional flat formworks and is mainly used for the intersection positions of beams and columns, columns and surfaces, and beams and surfaces to realize the forming of two surfaces. Compared with the conventional inside corner formwork, the universal inside corner formwork 2 can realize the splicing of angled building inside corners, greatly facilitating the pouring and forming of angled buildings. The universal inside corner and turning formwork 3 is mainly used for the three-way intersection position of beam-column surfaces to realize the forming of three surfaces. Compared with the conventional inside corner and turning formwork, the universal inside corner and turning formwork 3 can realize the splicing of angled building inside corner turns, greatly facilitating the pouring and forming of angled buildings. The arc forming formwork 4 is similar in function to the conventional flat formwork. During use, it is connected by the surrounding four sides to realize single-sided forming. Compared with the conventional flat formwork, its forming surface is an arc surface, and it can be quickly fabricated according to the arc size of the actual building during use. Therefore, multiple universal plastic formworks can quickly realize the formwork splicing and forming of complex building structures, significantly improving the production efficiency; At the same time, the adjustment component provided in the universal angle formwork assembly 1 can be quickly adjusted according to different building angles. By rotating the worm 64 through the knob 641 to engage the worm wheel 68 to drive the shaft tooth 65 to rotate. While the shaft tooth 65 rotates, it engages the rack 52 on the side wall of the first arc plate 5, causing the first arc plate 5 to drive the first formwork 11 at one end to rotate, thereby realizing the opening and closing between the first formwork 11 and the second formwork 12, changing the angle of the universal angle formwork assembly 1, and preventing loosening through the self-locking function of the worm 64 and the worm wheel 68. During use, it can be quickly adjusted according to the angle of the building surface without re-making the universal angle formwork assembly 1, thereby expanding its scope of application; And during the process of adjusting the angle of the universal angle template component 1, the sleeve rod 67 of the rotating shaft gear 65 near the outer side of the annular groove 651 rotates simultaneously. When the sleeve rod 67 rotates and contacts the first arc plate 5, at this time, the sleeve rod 67 is quickly squeezed. During this process, the piston rod 66 on the inner wall of the groove 652 slides in the sleeve rod 67, realizing that the piston rod 66 quickly squeezes the space at the front end of the sleeve rod 67. The gas inside this space quickly blows out to the outside through the air hole 671 opened on one side. The sleeve rod 67 near the upper end blows air upward at the meshing part of the shaft gear 65 and the rack 52, and at the same time, the sleeve rod 67 near the lower end blows air downward at the meshing part of the shaft gear 65 and the rack 52. After separating from the contact, under the action of the spring 672, the sleeve rod 67 slides back into the inner part of the groove 652, thereby realizing blowing air at the meshing part of the shaft gear 65 and the rack 52, cleaning fine dust and sundries during the meshing process, reducing the adverse effects of impurities on the meshing transmission, ensuring the transmission effect between the gear and the toothed ring, and improving the sensitivity of the adjustment process.

[0023] Furthermore, a convex block 51 is fixedly connected to the outer wall of the first arc plate 5 near the rack 52. A storage groove 511 is opened inside the convex block 51, and lubricating oil is filled inside the storage groove 511. A plurality of connecting pieces 54 are fixedly connected to the side wall of the elastic band 531 at equal intervals. One side of the connecting piece 54 is fixedly connected to a sealing rod 541 that is piston-connected to the inner wall of the storage groove 511. The side wall of the storage groove 511 near the rack 52 is provided with holes 512 corresponding to the connecting pieces 54 one by one. One end of the sealing rod 541 abuts against the inner wall of the hole 512. An adjusting piece 55 is slidably connected to the inner wall of the adjusting groove 53. One end of the adjusting piece 55 is fixedly connected to an adjusting ring 551. The inner wall of the adjusting ring 551 is rotatably connected to a screw rod 56. The outer wall of the screw rod 56 is threadedly connected to the inner wall of the first arc plate 5. A sliding groove 61 for slidingly connecting to the outer wall of the screw rod 56 is opened on the side wall of the second arc plate 6.

[0024] It should be noted that the storage tank 511 is filled with lubricating oil, and an oil filling hole is provided on one side wall of the storage tank 511. The oil filling hole is sealed by a sealing plug. During the adjustment process, while blowing air to clean the meshing part through the sleeve rod 67, the elastic belt 531 between one end of the sleeve rod 67 and the rack 52 is squeezed. At this time, while the sleeve rod 67 is compressed, the contact surface between the elastic belt 531 and one end of the sleeve rod 67 is sunken and deformed. At this time, the connecting piece 54 on the side of the elastic belt 531 close to the adjustment groove 53 is squeezed and slides, and the sealing rod 541 on the upper side wall thereof located in the storage tank 511 also slides simultaneously, so that one end of the sealing rod 541 is separated from the sealing of the hole 512 at this place. At this time, the lubricating oil in the storage tank 511 overflows through the hole 512 and flows downward to the meshing part of the rack 52 and the shaft gear 65 under the action of gravity. The lubricating oil can form an oil film on the surface of the meshing part, preventing air, moisture, etc. from contacting the metal surface of the gear, thereby preventing the gear from corroding and rusting, protecting the performance and service life of the gear. At the same time, the oil film of the lubricating oil separates the originally directly contacting metal surfaces, reducing the friction coefficient between the rack 52 and the shaft gear 65, further improving the transmission effect, ensuring the continuous progress of the adjustment process, and after the angle adjustment is completed, rotating the screw rod 56 to make the adjusting piece 55 approach the connecting piece 54 and squeeze it, so that one end of the sealing rod 541 on one side of the connecting piece 54 seals the hole 512, avoiding the leakage of the lubricating oil, and at the same time keeping the connecting piece 54 fixed when the lubricating oil does not need to be added, reducing the consumption of the lubricating oil.

[0025] A method for using a plastic formwork structure applicable to complex buildings includes the following steps: S1: When the universal angle formwork assembly 1 is used, the worm 64 is rotated through the knob 641 according to the angle of the building surface to engage the worm wheel 68 and drive the shaft gear 65 to rotate. While the shaft gear 65 rotates, it engages the rack 52 on the side wall of the first arc plate 5, so that the first arc plate 5 drives the first formwork 11 at one end to rotate, thereby realizing the opening and closing between the first formwork 11 and the second formwork 12. Then, the forming surfaces of the first formwork 11 and the second formwork 12 are ensured to form the building surface, and at the same time, splicing with other forming formworks is realized through a plurality of surrounding connecting surfaces; S2: The universal inside corner formwork 2 first cuts the large plane formwork according to the shape of the actual building, then cuts the smaller plane formwork, and finally bonds and fixes the two cut plane formworks, and realizes the forming of the building through the first forming surface 21, and realizes splicing with the surrounding formworks through a plurality of first connecting surfaces 22; S3: The universal inside corner turning formwork 3 first cuts the conventional inside corner formwork according to the shape of the actual building, then cuts small flat formwork according to the length of the inside corner to be formed after cutting, and then bonds and fixes between the two values. While realizing the formation of inside corner turns at any angle through the three second forming surfaces 31, the splicing of the surrounding formwork is realized through multiple second connecting surfaces 32; S4: The arc forming formwork 4 first heats the flat formwork according to the arc shape of the actual building, and then uses a rolling press to form the arc according to the size of the arc. The formation of any building arc surface is realized through the third forming surface 41, and the connection with the surrounding formwork is realized through the third connecting surface 42.

[0026] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plastic formwork structure applicable to complex buildings, comprising a universal corner formwork assembly (1), a universal inside corner formwork (2), a universal inside corner turning formwork (3) and an arc forming formwork (4), characterized in that, The universal angle template assembly (1) consists of a first template (11), a second template (12) and an adjustment component.

2. The plastic formwork structure applicable to complex buildings according to claim 1, wherein The first template (11) and the second template (12) are formed by cutting ordinary planar templates. The universal internal angle template (2) consists of two first forming surfaces (21) and five first connecting surfaces (22). The universal internal angle template (2) is formed by cutting off the corner of one planar template and fixing it to another planar template. The universal internal angle turning template (3) consists of three second forming surfaces (31) and four second connecting surfaces (32). The universal internal angle turning template (3) is formed by fixedly connecting an ordinary internal angle template and a planar template. The arc forming template (4) is formed by rolling a planar template with a roller press. The arc forming template (4) includes a third forming surface (41) and four third connecting surfaces (42).

3. The plastic formwork structure applicable to complex buildings according to claim 2, characterized in that, One end of the second template (12) is rotatably connected to a rotating shaft (121) that is rotatably connected to the inner wall of one end of the first template (11). The adjustment component in the universal angle template assembly (1) includes a first arc plate (5) fixed to the side wall of the first template (11) and a second arc plate (6) fixed to the side wall of the second template (12). Symmetric racks (52) are fixedly connected to the side wall of the first arc plate (5). Fixed plates (62) are fixedly connected to both side walls at one end of the second arc plate (6). Two ear plates (63) are fixedly connected to the outer wall of the upper fixed plate (62).

4. The plastic formwork structure applicable to complex buildings according to claim 3, characterized in that, A worm (64) is rotatably connected between the ear plates (63). One end of the worm (64) is fixedly connected to a knob (641). A shaft gear (65) that meshes with the rack (52) is fixedly connected between the two fixed plates (62). A worm gear (68) that meshes with the worm (64) is fixedly connected to the end of the shaft gear (65) that passes through the upper fixed plate (62).

5. The plastic formwork structure applicable to complex buildings according to claim 4, characterized in that, An adjustment groove (53) is formed in the side wall of the first arc plate (5) between the two racks (52). An elastic band (531) is fixedly connected to the inner wall of the adjustment groove (53). An annular groove (651) is formed in the side wall of the shaft gear (65) close to the adjustment groove (53). Multiple upper and lower groups of grooves (652) are formed in the side wall of the annular groove (651). A piston rod (66) is fixedly connected to the inner wall of the groove (652).

6. The plastic formwork structure applicable to complex buildings according to claim 5, wherein, A sleeve rod (67) is slidably connected to the inner wall of the groove (652). The inner wall of the sleeve rod (67) is piston-connected to the outer wall of the piston rod (66). Air holes (671) facing upwards are formed in the side walls of one ends of multiple sleeve rods (67) close to the upper end. Air holes (671) facing downwards are formed in the side walls of one ends of multiple sleeve rods (67) close to the lower end. A spring (672) is fixedly connected between one end of the piston rod (66) and the inner wall of one end of the sleeve rod (67).

7. The plastic formwork structure applicable to complex buildings according to claim 6, characterized in that On the outer wall of one side of the first arc plate (5) close to the rack (52), a convex block (51) is fixedly connected. A storage groove (511) is formed inside the convex block (51). Lubricating oil is filled inside the storage groove (511). A plurality of connecting pieces (54) evenly distributed at equal intervals are fixedly connected to the side wall of the elastic band (531). One side of the connecting piece (54) is fixedly connected to a sealing rod (541) piston-connected to the inner wall of the storage groove (511). A hole (512) corresponding to the connecting piece (54) one by one is formed in the side wall of the storage groove (511) close to the rack (52). One end of the sealing rod (541) abuts against the inner wall of the hole (512).

8. The plastic formwork structure applicable to complex buildings according to claim 7, characterized in that, A regulating piece (55) is slidably connected to the inner wall of the regulating groove (53). One end of the regulating piece (55) is fixedly connected to a regulating ring (551). A screw rod (56) is rotatably connected to the inner wall of the regulating ring (551). The outer wall of the screw rod (56) is threadedly connected to the inner wall of the first arc plate (5). A sliding groove (61) slidably connected to the outer wall of the screw rod (56) is formed in the side wall of the second arc plate (6).

9. A method of using the plastic formwork structure applicable to complex buildings described in any one of claims 1-8, characterized in that, Including the following steps: S1: When the universal angle template assembly (1) is used, the worm (64) is rotated through the knob (641) according to the angle of the building surface to engage the worm gear (68) to drive the shaft gear (65) to rotate. While the shaft gear (65) rotates, it engages the rack (52) on the side wall of the first arc plate (5), so that the first arc plate (5) drives the first template (11) at one end to rotate, thereby realizing the opening and closing between the first template (11) and the second template (12). Then, the forming surfaces of the first template (11) and the second template (12) ensure the forming of the building surface, and at the same time, the splicing with other forming templates is realized through a plurality of surrounding connecting surfaces; S2: The universal internal angle template (2) first cuts the large plane template according to the actual shape of the building, then cuts the smaller plane template, and finally bonds and fixes the two cut plane templates. The forming of the building is realized through the first forming surface (21), and the splicing with the surrounding templates is realized through a plurality of first connecting surfaces (22); S3: The universal internal angle corner template (3) first cuts the conventional internal angle template according to the actual shape of the building, then cuts the small plane template according to the length of the internal angle to be formed after cutting, and then bonds and fixes the two. While the forming of the internal angle corner at any angle is realized through the three second forming surfaces (31), the splicing with the surrounding templates is realized through a plurality of second connecting surfaces (32); S4: The arc forming template (4) first heats the plane template according to the actual arc shape of the building, and then uses a rolling press to form the arc according to the size of the arc. The forming of any building arc surface is realized through the third forming surface (41), and the connection with the surrounding templates is realized through the third connecting surface (42).

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