Fabricated building pouring formwork

Abstract

The invention relates to the technical field of building construction equipment, in particular to an assembly type building pouring formwork which comprises two oppositely-arranged vertical pipes and transverse pipes located at the two ends of the vertical pipes, each transverse pipe comprises end pipes located at the two ends, an extension pipe is arranged between the two end pipes, and a rectangular annular structure is defined by the two vertical pipes and the two transverse pipes. A placement bin is arranged in one transverse pipe, a storage bin is arranged in the other transverse pipe, a shielding belt capable of extending to the storage bin and sealing a hollow area between the transverse pipes and the vertical pipes is arranged in the placement bin, a guide roller is arranged between the two vertical pipes, a supporting rod is arranged between the two transverse pipes, and the supporting rod is connected with the storage bin. A positioning mechanism used for preventing the shielding belt from sinking is arranged on the supporting rod, the positioning mechanism comprises a base plate detachably connected with the supporting rod, an air bag expanding after being inflated is arranged on the base plate, and a top plate making contact with the shielding belt is arranged at the end, away from the base plate, of the air bag.

Description

Technical Field

[0001] This application relates to the technical field of construction equipment, and in particular to a prefabricated building casting formwork. Background Art

[0002] In current building construction, the casting formwork, as an important tool for concrete shaping, its structural design directly affects the construction efficiency and component quality. The current mainstream prefabricated formwork generally adopts a fixed frame structure. The height and width of the existing formwork are fixed at the time of factory production. The formwork with a fixed structure can only cope with a single construction scenario and cannot be flexibly adjusted according to the actual on-site needs during construction. When it is necessary to cast door and window openings with non-standard sizes or components with special shapes, the formwork with fixed dimensions often cannot meet the requirements and can only be modified by on-site cutting. This not only wastes materials but also damages the structural strength of the formwork and increases the construction risks. Although each construction scenario is different, whether it is a commercial housing or an office building, the height of the formwork used is basically fixed. With the advancement of building industrialization, there will be higher requirements for the flexibility, sealing performance and construction efficiency of the formwork..

[0003] Chinese Patent with Application No. 2024201443171 proposed a prefabricated building casting formwork, belonging to the technical field of building casting formwork. Aiming at the problems of low formwork assembly efficiency and poor stability of the assembled formwork, it includes two formwork bodies, and also includes two mounting plates. The two mounting plates are symmetrically distributed and fixed on one side wall of the formwork body. Two symmetrically distributed mounting grooves are provided on one side wall of the formwork body. The mounting plates are engaged with the mounting grooves, and a mounting component is arranged on one side of the formwork body.

[0004] In view of the above related technologies, the inventor found the following defects: The above patent is not applicable to multi-scenario building construction. Summary of the Invention

[0005] In order to increase the convenience of using the casting formwork, this application provides a prefabricated building casting formwork.

[0006] An assembled building casting formwork provided by the present application adopts the following technical solutions: It includes two relatively arranged vertical pipes and horizontal pipes located at both ends of the vertical pipes. The horizontal pipes include end pipes at both ends, and an extension pipe is arranged between the two end pipes. The two vertical pipes and the two horizontal pipes enclose a rectangular ring structure. A placement bin is arranged in one horizontal pipe, and a storage bin is arranged in the other horizontal pipe. A shielding belt that can extend into the storage bin and seal the hollow area between the horizontal pipe and the vertical pipe is arranged in the placement bin. A guide roller is arranged between the two vertical pipes. There are multiple guide rollers, which are evenly spaced along the length direction of the vertical pipe. A support rod is arranged between the two horizontal pipes, and a positioning mechanism for preventing the shielding belt from sagging is arranged on the support rod. The positioning mechanism includes a substrate detachably connected to the support rod. There are multiple substrates, which are arranged in an array. An airbag that expands after being inflated is arranged on the substrate. The airbag is communicated with an air pump, and a top plate that contacts the shielding belt is arranged at one end of the airbag away from the substrate.

[0007] Optionally, a recessed area for placing the shielding belt is arranged on the vertical pipe and the horizontal pipe. When the shielding belt extends from the placement bin to the storage bin, the edge of the shielding belt fills the recessed area and is flush with the vertical pipe and the horizontal pipe. A recessed groove communicated with the recessed area is arranged on the vertical pipe, an iron block is arranged on the shielding belt, and a magnet is arranged in the recessed groove.

[0008] Optionally, end grooves are arranged on two opposite side surfaces of the mutually close ends of the end pipe and the extension pipe. End holes communicated with the end grooves are arranged on the end pipe and the extension pipe. When a bolt passes through the relatively arranged end holes on the end pipe and the extension pipe, the end pipe and the extension pipe will be fixed. Extension edges are arranged on one side surface of the end pipe and the extension pipe, and the extension edges on the end pipe and the extension pipe are fixed by bolts.

[0009] Optionally, the horizontal pipe is of a hollow structure, an opening for the shielding belt to enter and exit is arranged on the horizontal pipe, a rotating rod for reversing the shielding belt is arranged at a position close to the opening in the placement bin and the storage bin, and a rotating shaft for winding the shielding belt is rotatably connected to the inner walls of the placement bin and the storage bin through bearings. The rotating shaft includes shaft ends at both ends of its length direction. A shaft body is arranged between the two shaft ends. One end of the shaft body is provided with a plug-in end, and the other end is provided with a slot for cooperating with the plug-in end of the adjacent shaft body. There are multiple shaft bodies, which are connected in sequence.

[0010] Optionally, a long groove is arranged along one edge of the shielding belt in its length direction. A card slot communicated with the long groove is arranged on the shielding belt. There are multiple card slots, which are evenly spaced along the length direction of the long groove. Nuts are arranged in the card slots. A connecting belt for cooperating with the long groove is arranged along the other edge of the shielding belt in its length direction. A through groove is arranged on the connecting belt, and nuts are arranged in the through groove, forming a structure in which a screw passes through the through groove and the nut in the card slot in sequence, and adjacent shielding belts are fixed.

[0011] Optionally, a torsion spring is provided on the shaft end located in the placement bin. A traction rope is provided on the shielding belt. A placement loop for winding the shielding belt is provided on the shaft end and the shaft body. A placement groove for storing the traction rope is provided on the placement loop located in the storage bin. A clamping post for fixing the traction rope is provided in the placement groove. The horizontal pipe where the storage bin is located can be opened to form a structure convenient for fixing the traction rope on the clamping post.

[0012] Optionally, a first bevel gear is provided on the shaft end located in the horizontal pipe where the storage bin is located. The first bevel gear meshes with a second bevel gear. The second bevel gear is key-connected to the drive shaft. One end of the drive shaft away from the shaft end extends outside the horizontal pipe and is provided with a handle. When the handle is rotated, the rotating shaft will drive the traction rope to wind in the placement groove and drive the shielding belt to wind on the placement loop in the storage bin.

[0013] Optionally, fixing rods are provided at the four corners of the substrate. Fixing buckles for cooperating with the fixing rods are provided on the support rods. The fixing buckles are in a "U" - shaped structure. Elastic protrusions are provided on the fixing rods. Fixing grooves for cooperating with the elastic protrusions are provided in the fixing buckles.

[0014] Optionally, an air seat for connecting the airbag and the air pump is provided on the substrate. The air seat is connected to the air pump through an air pipe. A elastic net is sleeved outside the airbag. A clockwork pull - rope mechanism is provided on the substrate. The rope of the clockwork pull - rope mechanism is connected to the top plate.

[0015] Optionally, a detachable shielding plate is provided at the opening position on the horizontal pipe.

[0016] In summary, the present application includes the following beneficial technical effects: The horizontal pipe includes an end pipe and an extension pipe. The number of extension pipes can be selected according to needs, and a rectangular ring structure suitable for pouring walls is formed in cooperation with the vertical pipes. A shielding belt covering the blank area between the horizontal pipe and the vertical pipe is provided in the horizontal pipe, and a positioning mechanism for preventing the shielding belt from sagging is provided, increasing the versatility of the formwork, adapting to the pouring of walls with different spans, and increasing the construction efficiency; The end pipe and the extension pipe are connected through an end groove, an end hole and bolts to form a telescopic structure, so that the width of the formwork can be adjusted. The extension edges of the end pipe and the extension pipe are connected by bolts, enhancing the strength of the horizontal pipe. The setting of the shielding belt refers to the number of the end pipe and the extension pipe and is arranged in one - to - one correspondence. Adjacent shielding belts are connected by a connecting belt, a clamping groove and a nut and a screw rod in a through - groove that cooperate with a long groove. Concave areas are provided on the vertical pipe and the horizontal pipe. The edge of the shielding belt is embedded in the concave area and is fixed by the adsorption of an iron block and a magnet. A detachable shielding plate is provided at the opening position on the horizontal pipe, ensuring the integrity of the contact surface with the concrete and reducing slurry leakage. The substrate is installed on the support rod through the fixing rod and the fixing buckle. The elastic protrusion of the fixing rod is snapped into the fixing groove of the fixing buckle to ensure the stability of the substrate. After the airbag is inflated, it presses against the shielding belt under the action of the top plate to ensure the flatness of the cast molding. The setting of the elastic net and the spring cord mechanism facilitates the storage of the airbag in the non-inflated state; The rotating shaft in the placement bin is provided with a torsion spring. The rotating shaft of the storage bin is connected to the handle through the first bevel gear and the second bevel gear. Rotating the handle can drive the rotating shaft to wind up the shielding belt, realizing the rapid retraction and release of the shielding belt, with convenient operation and improved construction efficiency. Brief Description of the Drawings

[0017] Figure 1 is the rear view of a prefabricated building casting formwork of the present application; Figure 2 is an enlarged view of part A of the rear view of a prefabricated building casting formwork of the present application; Figure 3 is the sectional view of a prefabricated building casting formwork of the present application; Figure 4 is an enlarged view of part B of the sectional view of a prefabricated building casting formwork of the present application; Figure 5 is the sectional view of the placement bin of a prefabricated building casting formwork of the present application; Figure 6 is the sectional view of the storage bin of a prefabricated building casting formwork of the present application; Figure 7 is the front view of a prefabricated building casting formwork of the present application.

[0018] Reference Numerals: 1 vertical pipe, 2 horizontal pipe, 3 end pipe, 4 extension pipe, 5 placement bin, 6 storage bin, 7 shielding belt, 8 guide roller, 9 support rod, 10 substrate, 11 airbag, 12 top plate, 13 depression area, 14 depression groove, 15 iron block, 16 magnet, 17 end groove, 19 extension edge, 20 opening, 21 rotating rod, 22 shaft end, 23 shaft body, 24 insertion end, 25 long groove, 26 clamping groove, 27 nut, 28 connecting belt, 29 through groove, 30 placement ring, 31 placement groove, 32 clamping post, 33 fixing rod, 34 fixing buckle, 35 elastic protrusion, 36 fixing groove, 37 air seat, 38 elastic net, 39 spring cord mechanism, 40 rope, 41 drive shaft, 42 handle, 43 shielding plate. Detailed Description of the Embodiment

[0019] The following will further elaborate on the present application in conjunction with the attached Figure 1-7 drawings.

[0020] The embodiment of the present application discloses a prefabricated building casting formwork. As Figure 1-4As shown in the figure, it includes two vertically arranged pipes 1 which are oppositely arranged and cross pipes 2 located at both ends of the vertical pipes 1. The cross pipes 2 include end pipes 3 at both ends. The vertical pipes 1 are fixedly connected to the end pipes 3 by bolts. An extension pipe 4 is arranged between the two end pipes 3. The two vertical pipes 1 and the two cross pipes 2 enclose a rectangular ring structure. End grooves 17 are arranged on two opposite side surfaces of the mutually close ends of the end pipe 3 and the extension pipe 4. End holes communicating with the end grooves 17 are arranged on the end pipe 3 and the extension pipe 4. When the bolts pass through the oppositely arranged end holes on the end pipe 3 and the extension pipe 4, the end pipe 3 and the extension pipe 4 will be fixed. Extension plates 19 are fixedly screwed on one side surface of the end pipe 3 and the extension pipe 4. The extension plates 19 are arranged away from the casting surface. The extension plates 19 located on the end pipe 3 and the extension pipe 4 are fixed by bolts. When there are more extension pipes 4, the connection method of the two extension pipes 4 refers to the same connection method between the extension pipe 4 and the end pipe 3. A placement bin 5 is arranged in one cross pipe 2, and a storage bin 6 is arranged in the other cross pipe 2. A shielding belt 7 which can extend into the storage bin 6 and seal the hollow area between the cross pipe 2 and the vertical pipe 1 is arranged in the placement bin 5. Both cross pipes 2 are of hollow structure, and openings 20 for the shielding belt 7 to enter and exit are arranged on the cross pipes 2. Rotating shafts for winding the shielding belt 7 are rotatably connected to the inner walls of the placement bin 5 and the storage bin 6 through bearings. The rotating shafts include shaft ends 22 located at both ends in the length direction thereof. A shaft body 23 is arranged between the two shaft ends 22. A plug-in end 24 is arranged at one end of the shaft body 23, and a slot for cooperating with the plug-in end 24 of the adjacent shaft body 23 is arranged at the other end. There are multiple shaft bodies 23 and they are connected in sequence. Placement circles 30 for winding the shielding belt 7 are arranged on the shaft ends 22 and the shaft bodies 23. Guide rollers 8 are arranged between the two vertical pipes 1. There are multiple guide rollers 8 and they are evenly arranged at intervals along the length direction of the vertical pipes 1. Rotating rods 21 for reversing the shielding belt 7 are rotatably connected at positions of the placement bin 5 and the storage bin 6 close to the opening 20, so as to ensure that the shielding belt 7 is flush with the surfaces of the cross pipe 2 and the vertical pipe 1 under the action of the rotating rod 21 and the guide rollers 8. Support rods 9 are arranged between the two cross pipes 2. A positioning mechanism for preventing the shielding belt 7 from sagging is arranged on the support rods 9. The positioning mechanism includes a base plate 10 detachably connected to the support rod 9. There are multiple base plates 10 and they are arranged in an array. Air bags 11 which expand after being inflated are arranged on the base plate 10. An air seat 37 communicating with the air bags 11 is arranged on the base plate 10. The air seat 37 belongs to the prior art. The air seat 37 is communicated with an air pump through an air pipe. A top plate 12 contacting the shielding belt 7 is arranged at one end of the air bag 11 away from the base plate 10. An elastic net 38 is sleeved outside the air bag 11. The elastic net 38 belongs to the prior art. One end of the elastic net 38 is fixed on the air seat 37 and the other end is cemented on the top plate 12. A clockwork cable mechanism 39 is fixedly screwed on the base plate 10. The clockwork cable mechanism 39 belongs to the prior art. A rope 40 of the clockwork cable mechanism 39 is connected to the top plate 12.

[0021] In one embodiment, according to the attached Figure 4 and 7As shown in the figure, the vertical pipe 1 and the horizontal pipe 2 are provided with a recessed area 13 for placing the shielding belt 7. The recessed area 13 is in a rectangular ring structure. When the shielding belt 7 extends from the placement bin 5 to the storage bin 6, the edge of the shielding belt 7 fills the recessed area 13 and is flush with the vertical pipe 1 and the horizontal pipe 2. Both vertical pipes 1 are provided with recessed grooves 14 communicating with the recessed area 13. A notch is provided on the side of the shielding belt 7, and an iron block 15 is adhesively bonded in the notch. A magnet 16 is adhesively bonded in the recessed groove 14, which is convenient for the edge of the shielding belt 7 to be sealed with the vertical pipe 1. One edge of the shielding belt 7 along its length direction is provided with a long groove 25. The shielding belt 7 is provided with a card slot 26 communicating with the long groove 25. There are multiple card slots 26 and they are evenly spaced along the length direction of the long groove 25. A nut 27 is arranged in the card slot 26. The other edge of the shielding plate 43 along its length direction is provided with a connecting belt 28 for cooperating with the long groove 25. A through groove 29 is arranged on the connecting belt 28, and a nut 27 is arranged in the through groove 29, forming a structure in which a screw passes through the through groove 29 and the nut in the card slot 26 in sequence, and adjacent shielding belts 7 are fixed. A detachable shielding plate 43 is arranged at the position of the opening 20 on the horizontal pipe 2 to ensure the integrity of the contact surface with the concrete and reduce the leakage of slurry.

[0022] In one embodiment, according to the attached Figure 5 and 6 As shown in the figure, a torsion spring is arranged on the shaft end 22 in the placement bin 5. One end of the shielding belt 7 is adhesively bonded with a traction rope. Under normal conditions, the traction rope is not wound around the rotating shaft. When in use, the traction rope stored in a disc shape is opened. A placement groove 31 for storing the traction rope is arranged on the placement ring 30 in the storage bin 6, and a clamping post 32 for fixing the traction rope is arranged in the placement groove 31. The horizontal pipe 2 where the storage bin 6 is located can be opened to form a structure convenient for fixing the traction rope on the clamping post 32. A first bevel gear is key-connected to the shaft end 22 in the horizontal pipe 2 where the storage bin 6 is located. The first bevel gear meshes with a second bevel gear, and the second bevel gear is key-connected to the drive shaft 41. A bearing for rotatably connecting the drive shaft 41 is arranged in the end pipe 3. One end of the drive shaft 41 away from the shaft end 22 extends outside the horizontal pipe 2 and is fixed with a handle 42 by screws. When the handle 42 is rotated, the rotating shaft will drive the traction rope to wind in the placement groove 31 and drive the shielding belt 7 to wind on the placement ring 30 in the storage bin 6.

[0023] In one embodiment, according to the attached Figure 4 As shown in the figure, fixing rods 33 integrally structured with the base plate 10 are arranged at the four corners of the base plate 10. Fixing buckles 34 for cooperating with the fixing rods 33 are screwed on the support rod 9 and the vertical pipe 1. The fixing buckle 34 is in a "U" shape structure. Elastic protrusions 35 are arranged on the fixing rod 33. There are two elastic protrusions 35 and they are symmetrically arranged with respect to the fixing rod 33. Fixing grooves 36 for cooperating with the elastic protrusions 35 are arranged in the fixing buckle 34.

[0024] The implementation principle of a prefabricated building casting formwork in an embodiment of this application is as follows: Vertically place two vertical pipes 1, adjust the length of the horizontal pipe 2 according to construction requirements. The end pipe 3 and the extension pipe 4 are fixed by connecting bolts on the end groove 17 and the extension plate 19. Select a corresponding shaft body 23 with a shielding belt 7 according to the length of the horizontal pipe 2, fix the shaft body 23 to the shaft end 22, take out the traction rope of the shielding belt 7 from the placement bin 5, and fix it on the clamping post 32 in the storage bin 6 after passing through the guiding path of the guiding roller 8. Place the connecting belt 28 of the shielding belt 7 into the long groove 25 of the adjacent shielding belt 7, ensure that the screw can pass through the nut in the clamping groove 26 and the through groove 29, to realize the connection of the adjacent shielding belts 7. The edge of the shielding belt 7 is embedded in the recessed area 13 of the vertical pipe 1 and adsorbed and fixed by the magnet 16 to form a sealed frame. Then erect the rectangular ring structure composed of the horizontal pipe 2 and the vertical pipe 1, fix the airbag 11 and the top plate 12 on the substrate 10, insert the fixing rods 33 at the four corners of the substrate 10 into the fixing buckles 34 of the support rod 9, and the elastic protrusions 35 are snapped into the fixing grooves 36 to ensure the stability of the substrate 10. Connect the air pump to the airbag 11, adjust the length of the rope 40 in the clockwork pull rope mechanism 39 to make the top plate 12 gently touch the shielding belt 7, and finally inflate to realize the support for the shielding belt 7.

[0025] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A prefabricated building casting formwork, comprising two oppositely arranged vertical pipes (1) and horizontal pipes (2) located at both ends of the vertical pipes (1), characterized in that: The horizontal pipe (2) includes end pipes (3) located at both ends. An extension pipe (4) is arranged between the two end pipes (3). The two vertical pipes (1) and the two horizontal pipes (2) enclose a rectangular ring structure. A placement bin (5) is arranged in one of the horizontal pipes (2), and a storage bin (6) is arranged in the other horizontal pipe (2). A shielding belt (7) that can extend into the storage bin (6) and seal the hollow area between the horizontal pipe (2) and the vertical pipe (1) is arranged in the placement bin (5). A guide roller (8) is arranged between the two vertical pipes (1). There are multiple guide rollers (8) and they are evenly spaced along the length direction of the vertical pipe (1). A support rod (9) is arranged between the two horizontal pipes (2). A positioning mechanism for preventing the shielding belt (7) from sagging is arranged on the support rod (9). The positioning mechanism includes a base plate (10) detachably connected to the support rod (9). There are multiple base plates (10) and they are arranged in an array. An airbag (11) that expands after being inflated is arranged on the base plate (10). The airbag (11) is communicated with an air pump. A top plate (12) that contacts the shielding belt (7) is arranged at one end of the airbag (11) away from the base plate (10).

2. The prefabricated building casting form according to claim 1, characterized in that: Depression areas (13) for placing the shielding belt (7) are arranged on the vertical pipe (1) and the horizontal pipe (2). When the shielding belt (7) extends from the placement bin (5) to the storage bin (6), the edge of the shielding belt (7) fills the depression area (13) and is flush with the vertical pipe (1) and the horizontal pipe (2). A depression groove (14) communicated with the depression area (13) is arranged on the vertical pipe (1). An iron block (15) is arranged on the shielding belt (7), and a magnet (16) is arranged in the depression groove (14).

3. The prefabricated building casting form according to claim 1, characterized in that: End grooves (17) are arranged on two opposite side faces of the mutually close ends of the end pipe (3) and the extension pipe (4). End holes communicated with the end grooves (17) are arranged on the end pipe (3) and the extension pipe (4). When bolts pass through the relatively arranged end holes on the end pipe (3) and the extension pipe (4), the end pipe (3) and the extension pipe (4) will be fixed. Extension plates (19) are arranged on one side face of the end pipe (3) and the extension pipe (4). The extension plates (19) on the end pipe (3) and the extension pipe (4) are fixed by bolts.

4. The prefabricated building casting form according to claim 1, wherein: The horizontal pipe (2) is of a hollow structure. An opening (20) for the shielding belt (7) to enter and exit is arranged on the horizontal pipe (2). Rotating rods (21) for reversing the shielding belt (7) are arranged at positions of the placement bin (5) and the storage bin (6) close to the opening (20). The inner walls of the placement bin (5) and the storage bin (6) are rotationally connected by bearings with rotating shafts for winding the shielding belt (7). The rotating shaft includes shaft ends (22) located at both ends in its length direction. A shaft body (23) is arranged between the two shaft ends (22). A plug-in end (24) is arranged at one end of the shaft body (23), and a slot for cooperating with the plug-in end (24) of the adjacent shaft body (23) is arranged at the other end. There are multiple shaft bodies (23) and they are connected in sequence.

5. The prefabricated building casting form according to claim 1, wherein: One side edge of the shielding strip (7) along its length is provided with a long groove (25). A clamping groove (26) communicating with the long groove (25) is arranged on the shielding strip (7). There are multiple clamping grooves (26) which are evenly spaced along the length direction of the long groove (25). A nut (27) is arranged in the clamping groove (26). The other side edge of the shielding plate (43) strip along its length is provided with a connecting strip (28) which is used in cooperation with the long groove (25). A through groove (29) is arranged on the connecting strip (28). A nut (27) is arranged in the through groove (29), forming a structure in which a screw rod sequentially passes through the through groove (29) and the nut in the clamping groove (26), and adjacent shielding strips (7) are fixed.

6. The prefabricated building casting form according to claim 2, characterized in that: A torsion spring is arranged on the shaft end (22) located in the placement bin (5). A traction rope is arranged on the shielding strip (7). A placement circle (30) for winding the shielding strip (7) is arranged on the shaft end (22) and the shaft body (23). A placement groove (31) for storing the traction rope is arranged on the placement circle (30) located in the storage bin (6). A clamping post (32) for fixing the traction rope is arranged in the placement groove (31). The horizontal pipe (2) where the storage bin (6) is located can be opened to form a structure convenient for fixing the traction rope on the clamping post (32).

7. The prefabricated building casting form according to claim 6, wherein: A first bevel gear is arranged on the shaft end (22) located in the horizontal pipe (2) where the storage bin (6) is located. The first bevel gear meshes with a second bevel gear. The second bevel gear is key-connected to a drive shaft (41). One end of the drive shaft (41) far from the shaft end (22) extends outside the horizontal pipe (2) and is provided with a handle (42). When the handle (42) is rotated, the rotating shaft will drive the traction rope to wind in the placement groove (31) and drive the shielding strip (7) to wind on the placement circle (30) of the storage bin (6).

8. The prefabricated building casting form according to claim 1, characterized in that: Fixing rods (33) are arranged at the four corners of the substrate (10). Fixing buckles (34) which are used in cooperation with the fixing rods (33) are arranged on the support rods (9). The fixing buckles (34) are in a "U"-shaped structure. Elastic protrusions (35) are arranged on the fixing rods (33). Fixing grooves (36) which are used in cooperation with the elastic protrusions (35) are arranged in the fixing buckles (34).

9. The prefabricated building casting form according to claim 1, wherein: An air seat (37) for communicating the airbag (11) with an air pump is arranged on the substrate (10). The air seat (37) is communicated with the air pump through an air pipe. A elastic net (38) is sleeved outside the airbag (11). A clockwork pull rope mechanism (39) is arranged on the substrate (10). A rope (40) of the clockwork pull rope mechanism (39) is connected to the top plate (12).

10. A prefabricated building casting form according to claim 1, characterized in that: A detachable shielding plate (43) is arranged at the position of the opening (20) on the horizontal pipe (2).

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