An adjustable radius fabricated building form

Abstract

The application relates to an adjustable-arc fabricated building template, and relates to the field of templates for building construction, which comprises a strip-shaped plate with an outer plate surface, an inner plate surface and two side plate surfaces, the plate height of the strip-shaped plate is parallel to a first direction X, and the two side plate surfaces are also parallel to the first direction X; a dihedral angle is formed between the outer plate surface and the side plate surface, an edge at the intersection of the outer plate surface and the side plate surface is a first side edge, the included angle A between the tangent plane of the outer plate surface at the first side edge and the side plate surface is less than 90 DEG, so that the spacing between the two side plate surfaces gradually decreases in the direction from the outer plate surface to the inner plate surface. The application has the effect of preventing convex edges.

Description

Technical Field

[0001] This application relates to the field of formwork for building construction, and in particular to an adjustable curvature prefabricated building formwork. Background Technology

[0002] During the construction of shopping mall buildings, handrails need to be built on the outer ring of some floors. Some shopping malls use glass handrails, while others use cast-in-place concrete walls. Regarding the design of the handrails, some are straight and some are curved. The formwork construction method for straight handrails is relatively simple, and it is the same as the formwork construction method for straight walls in traditional buildings. However, the construction of curved handrails requires the use of formwork adapted to the curve of the handrail.

[0003] Currently, most templates are rectangular plate structures. Therefore, when the curve of the handrail is large, gaps will appear between the side walls of the two adjacent templates when they are arranged along the curve of the handrail. Concrete will enter the gaps, resulting in protruding edges on the finished handrail. Therefore, how to avoid protruding edges is an urgent problem to be solved. Summary of the Invention

[0004] To prevent protruding edges, this application provides an adjustable curvature prefabricated building template.

[0005] The adjustable curvature prefabricated building formwork provided in this application adopts the following technical solution:

[0006] An adjustable curvature prefabricated building formwork, comprising:

[0007] A strip plate having an outer plate, an inner plate, and two side plates, wherein the height of the strip plate is parallel to the first direction X, and the two side plates are also parallel to the first direction X;

[0008] The outer panel and the side panel form a dihedral angle. The edge where the outer panel and the side panel intersect is the first side edge. The angle A between the tangent of the outer panel at the first side edge and the side panel is less than 90°, so that the distance between the two side panels gradually decreases in the direction from the outer panel to the inner panel.

[0009] By adopting the above technical solution, since the included angle A is less than 90°, when splicing two adjacent strip plates, it is possible to prevent the upper side surfaces of the two strip plates from contacting each other. Thus, the two strip plates can be placed at any angle. By contacting the first side edges of the two strip plates, it is possible to effectively prevent concrete from entering between the two strip plates, thereby preventing the formation of protruding edges.

[0010] Optionally, it also includes an angle adjustment component and a connecting strip with two side strips, the connecting strip being set parallel to the first direction X;

[0011] A dihedral angle is formed between the two side faces of the strip, the edge at the intersection of the two side faces of the strip is the second lateral edge, and the included angle B between the two side faces of the strip is less than 90°;

[0012] The first side edge is in contact with the second side edge, and the sum of the included angle A and included angle B is less than 90°;

[0013] The angle adjustment component is connected between the connecting strip and the strip plate to change the included angle between the connecting strip and the strip plate.

[0014] By adopting the above technical solution, when two strip plates need to be connected, it is only necessary to connect the connecting strips on the sides of the two strip plates to achieve the connection of the two adjacent strip plates. Since the sum of the included angles A and B is less than 90°, two connecting strips can be accommodated in the gap between the two strip plates.

[0015] Optionally, the angle adjustment component includes multiple arc strips, the central axis of which is collinear with the lines containing the first and second side edges;

[0016] Multiple arc strips are distributed circumferentially on a virtual circle, and the virtual circle is coaxial with the arc strips;

[0017] Of the two arcuate strips located at the ends, one is fixedly connected to the connecting strip, and the other is fixedly connected to the strip plate;

[0018] In two adjacent arc strips, one arc strip slides circumferentially to the other arc strip.

[0019] By adopting the above technical solution, the distance between the connecting strip and the strip plate can be easily adjusted by sliding two adjacent arc strips relative to each other.

[0020] Optionally, it also includes a first compression spring fixedly connected between the connecting strip and the strip plate;

[0021] When the first compression spring is in a compressible state with recoverable deformation, it has a force that pushes the connecting bar toward the side away from the strip plate.

[0022] By adopting the above technical solution, when splicing two adjacent strips, it is only necessary to adjust the two adjacent strips to the required position. Under the action of the first compression spring, the two connecting strips can be made to contact each other, so that personnel can fix the two adjacent connecting strips later.

[0023] Optionally, a connecting strip is provided on each of the two sidewalls of the strip that are far apart from each other.

[0024] By adopting the above technical solution, at least three strip panels arranged on the handrail curve can be connected in pairs.

[0025] Optionally, of the connecting strips on both sides of the strip plate, one of the connecting strips is called connecting strip one, and the other connecting strip is called connecting strip two;

[0026] A circular arc positioning strip is fixedly connected to the first connecting strip, and a positioning hole is opened through the second connecting strip along the second direction Y;

[0027] The circular arc positioning strip is coaxial with the circular arc strip;

[0028] When the connecting strips on the sides of two adjacent strip plates come into contact, a positioning hole on the second connecting strip on the side of one of the two contacting strip plates is used for the arc strip on the second connecting strip on the side of the other strip plate to pass through; when the arc strip passes through the positioning hole, the first side edge and the second side edge line come into contact.

[0029] By adopting the above technical solution, and by setting positioning holes and arc positioning strips, it is easy to position two adjacent strip plates, so as to adjust the first side edge and the second side edge to a collinear state.

[0030] Optionally, the second connecting strip is provided with a sliding groove, one end of which communicates with the positioning hole, and the other end of which penetrates the side wall of the second connecting strip away from the second side edge;

[0031] The arc-shaped strip passes through the groove, and the arc-shaped strip can slide in the groove in a direction perpendicular to the first side edge;

[0032] It also includes a locking component connected to the second connecting strip, the locking component being used to fix the arc strip into the positioning hole.

[0033] By adopting the above technical solution, when inserting the arc positioning strip into the positioning hole, the arc positioning strip can also be inserted into the positioning hole after passing through the slide groove, which can provide another way to insert the arc positioning strip.

[0034] Optionally, the locking component includes:

[0035] Two wedge blocks are provided, and each of the two inner sidewalls of the connecting strip is provided with a wedge block. The wedge blocks are slidably connected to the connecting strip in the third direction Z.

[0036] The second compression spring is connected to the connecting bar two through a corresponding second compression spring for each wedge block. The extension and retraction direction of the second compression spring is parallel to the third direction Z.

[0037] When the locking component is in the locked position, the wedge block blocks the slide groove to prevent the arc strip in the positioning hole from moving into the slide groove;

[0038] During the movement of the two wedges toward the side that moves away from each other, the locking assembly adjusts from the locked posture to the unlocked posture. When the locking assembly is in the unlocked posture, the second compression spring is in a compressible state that can recover its deformation, and has a force that drives the two wedges to move toward the side that moves closer to each other.

[0039] By adopting the above technical solution, when it is necessary to pass the arc positioning strip through the slide groove, it is only necessary to move the two wedge blocks toward the side that is far apart from each other, so that the arc positioning strip can pass through the slide groove and be inserted into the positioning hole; by setting the wedge blocks, it is possible to prevent the arc positioning strip from sliding from the positioning hole into the slide groove.

[0040] Optionally, the wedge block has a wedge-shaped surface located on the side of the wedge block away from the positioning hole. The wedge-shaped surface is in a first direction X, and in the direction from one wedge block having the wedge-shaped surface to another wedge block, the wedge-shaped surface is inclined from the groove toward the positioning hole side.

[0041] By adopting the above technical solution, during the process of inserting the arc positioning strip into the positioning hole through the groove, the arc positioning strip pushes the two wedge blocks to move towards the side that is far away from each other by pushing the wedge surface. This eliminates the need for personnel to manually move the wedge blocks, thus improving the convenience of operation.

[0042] Optionally, it also includes a spacing adjustment component, the spacing adjustment component comprising:

[0043] Two parallel rotating rods are connected by a thread, and the axis of rotation of the two rotating rods is parallel to the length of the rod.

[0044] Two omnidirectional balls, and two rotating rods, each with a corresponding omnidirectional ball fixedly connected to one of their opposite ends; and

[0045] Two ball seats, each of the omnidirectional balls being freely rotatably connected to one of the ball seats; the connecting strip and the strip plate are each fixedly connected to one of the ball seats.

[0046] By adopting the above technical solution, when it is necessary to adjust the angle between the connecting strip and the strip plate, it is only necessary to rotate the two adjacent rotating rods relative to each other, thereby changing the included angle between the connecting strip and the strip plate.

[0047] In summary, this application includes at least one of the following beneficial technical effects:

[0048] 1. By contacting the first side edges of the two strip plates, concrete can be effectively prevented from entering between the two strip plates, thus preventing the formation of protruding edges;

[0049] 2. By setting positioning holes and arc positioning strips, it is easy to position two adjacent strip plates;

[0050] 3. By setting up a spacing adjustment component, the included angle between the connecting strip and the strip plate can be easily adjusted. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0052] Figure 2 This is a schematic diagram of the connecting strip in an embodiment of this application;

[0053] Figure 3 yes Figure 1 Enlarged view of section A;

[0054] Figure 4 This is a cross-sectional view of the arc strip in the embodiment of this application;

[0055] Figure 5 This is a schematic diagram of the arc positioning strip in an embodiment of this application;

[0056] Figure 6 This is a schematic diagram of the wedge block structure in an embodiment of this application;

[0057] Figure 7 This is a schematic diagram of the structure of the wedge block and the second compression spring in the embodiments of this application;

[0058] Figure 8 yes Figure 1 Enlarged view of section B.

[0059] Explanation of reference numerals in the attached drawings: 1. Strip plate; 11. Outer plate surface; 12. Inner plate surface; 13. Side plate surface; 14. First side edge; 2. Connecting strip; 201. Connecting strip one; 201. Connecting strip two; 21. Side of strip; 22. Second side edge; 23. Positioning hole; 24. Slide groove; 25. Guide groove; 3. Angle adjustment assembly; 31. Arc strip; 311. First retaining ring; 312. Second retaining ring; 4. Arc positioning strip; 5. Pin; 6. Locking assembly; 61. Wedge block; 611. Wedge surface; 62. Second compression spring; 7. First compression spring; 8. Spacing adjustment assembly; 81. Rotating rod; 82. Universal ball; 83. Ball seat. Detailed Implementation

[0060] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail. For ease of description, this application introduces directional terms such as the first direction X, the second direction Y, and the third direction Z to form a three-dimensional reference direction. The directional terms used, such as "the first direction X, the second direction Y, and the third direction Z", can be specifically referred to in the figure, where X represents the first direction X, Y represents the second direction Y, and Z represents the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0061] This application discloses an adjustable curvature prefabricated building formwork. (Refer to...) Figure 1 The adjustable curvature prefabricated building formwork includes a strip plate 1 with an outer plate surface 11, an inner plate surface 12, and two side plate surfaces 13. The height direction of the strip plate 1 and the two side plate surfaces 13 are parallel to the first direction X. When enclosing the concrete pouring cavity, the strip plate 1 is placed vertically so that the first direction X is in the vertical direction. Multiple strip plates 1 are arranged sequentially along the curve of the handrail. After the two layers of strip plates 1 are placed, the two layers of strip plates 1 can form a concrete pouring cavity.

[0062] A dihedral angle is formed between the outer surface 11 and the side surface 13 of the strip panel 1. The edge at the intersection of the outer surface 11 and the side surface 13 is the first side edge 14. The included angle A between the tangent of the outer surface 11 at the first side edge 14 and the side surface 13 is less than 90°. Preferably, in this disclosure, the included angle A is preferably 25°, so that the distance between the two side surfaces 13 gradually decreases in the direction from the outer surface 11 to the inner surface 12. When the strip panel 1 is arranged on the curve of the handrail, it is only necessary to adjust the included angle between two adjacent strip panels 1 to the required angle.

[0063] Reference Figure 1 and Figure 2 In order to connect two adjacent strip plates 1, in some embodiments of this application, a connecting strip 2 is also provided parallel to the first direction X. The connecting strip 2 is provided at at least one side plate surface 13 of the strip plate 1. Preferably, in this disclosure, the strip plate 1 is provided with a connecting strip 2 at each of the two side plate surfaces 13.

[0064] The connecting strip 2 has two strip sides 21, which intersect to form a dihedral angle, and the included angle B between the two strip sides 21 is less than 90°.

[0065] The edge at the intersection of the two side surfaces 21 is the second side edge 22. The second side edge 22 is in contact with the first side edge 14, and the sum of the included angles A and B is less than 90°, so that the gap between the two adjacent strip plates 1 can accommodate the connecting strips 2 on the two side surfaces 21.

[0066] Reference Figure 3 and Figure 4 In order to connect the connecting strip 2 and the strip plate 1, in some embodiments of this application, an angle adjustment component 3 is also included. The angle adjustment component 3 includes a plurality of arc strips 31 distributed along the circumference of the virtual circle. The central axis of the arc of the arc strip 31 is coaxial with the central axis of the virtual circle, and the central axis of the virtual circle is collinear with the first side edge 14 and the second side edge 22.

[0067] Two adjacent arc strips 31 can slide relative to each other along the circumference of the virtual circle. Of the two arc strips 31 located at the very end, one arc strip 31 is fixedly connected to the strip plate 1, and the other arc strip 31 is fixedly connected to the connecting strip 2.

[0068] To enable relative sliding of two adjacent arc strips 31 in the virtual circumferential direction, in some embodiments of this application, each arc strip 31 is hollow. In two adjacent arc strips 31, the arc strip 31 closer to the connecting strip 2 is inserted into the arc strip 31 closer to the strip plate 1, allowing the connecting strip 2 to slide along the strip plate 1. To prevent adjacent arc strips 31 from detaching, in two adjacent connecting strips 2, the arc strip 31 closer to the strip plate 1 has a first retaining ring 311 protruding from the inner wall of the end furthest from the strip plate 1. A second retaining ring 312 is provided on the outer wall of the arc strip 31 of the connecting strip 2 at the end away from the connecting strip 2. The second retaining ring 312 is located on the side of the first retaining ring 311 close to the strip plate 1. When the two arc strips 31 slide to the contact of the first retaining ring 311 and the second retaining ring 312, the arc strip 31 can be prevented from detaching from the other arc strip 31. As the arc strip 31 rotates with the connecting strip 2, it can change the included angle between the connecting strip 2 and the strip plate 1, and at the same time, it can ensure that the first side edge 14 and the second side edge 22 are always in line contact.

[0069] Reference Figure 5 For ease of description, in the two connecting strips 2 on both sides of the strip plate 1, one connecting strip 2 is called connecting strip one 2a, and the other connecting strip 2 is called connecting strip two 2b;

[0070] When connecting the connecting strips 2 on the sides of two adjacent strip plates 1, in order to facilitate the alignment of the first side edge 14 and the second side edge 22, in some embodiments of this application, an arc-shaped positioning strip 4 is also included. The arc-shaped positioning strip 4 is fixedly connected to the connecting strip 2a, and the central axis of the arc-shaped positioning strip 4 is collinear with the central axis of the arc strip 31. A positioning hole 23 is provided through the connecting strip 2b along the second direction Y. The second positioning hole 23 is used for the arc-shaped positioning strip 4 on the other strip plate 1 to pass through. When the arc-shaped positioning strip 4 on one of the two adjacent strip plates 1 passes through the positioning hole 23 on the connecting strip 2 on the side of the other strip plate 1, the first side edges 14 of the two strip plates 1 are in line contact. In this embodiment, the second direction Y is the circumferential direction of a virtual circle.

[0071] After the arc positioning strip 4 is inserted into the positioning hole 23, in order to make the connecting strips 2 on the two strip plates 1 contact each other and prevent the two strip plates 1 from separating, in some embodiments of this application, a pin 5 is also included. The pin 5 passes through the arc positioning strip 4. After the pin 5 is inserted into the arc positioning strip 4, the pin 5 limits the two connecting strips 2 to a state of mutual contact.

[0072] Reference Figure 6 and Figure 7Furthermore, in order to provide multiple ways for the arc positioning strip 4 to enter the positioning hole 23, in some embodiments of this application, a groove 24 is provided on the connecting strip 2b. One end of the groove 24 is connected to the positioning hole 23, and the other end passes through the side wall of the connecting strip 2 away from the second side edge 22. During installation, it is only necessary to insert the circular positioning strip on the side of the strip plate 11 through the groove 24 and into the positioning hole 23.

[0073] Reference Figure 6 and Figure 7 In order to prevent the arc positioning strip 4 in the positioning hole 23 from entering the slide groove 24, in some embodiments of this application, a locking component 6 with an unlocking posture and a locking posture is also included. The locking component 6 includes two wedge blocks 61, which are distributed sequentially in the first direction X. Specifically, each of the two inner sidewalls of the slide groove 24 is connected to a wedge block 61.

[0074] The wedge block 61 can slide along the connecting strip 2 in the first direction X. In order to allow the wedge block 61 to slide, the connecting strip 2 has a guide groove 25 on each side of the slide groove 24, which communicates with the slide groove 24. The depth of the guide groove 25 is parallel to the first direction X. Each guide groove 25 has a corresponding wedge block 61. The peripheral sidewall of the wedge block 61 contacts the inner peripheral wall of the slide groove 24. Under the limiting action of the inner wall of the guide groove 25, the sliding of the wedge block 61 along the first direction X is guided. In order to prevent the wedge block 61 from detaching from the guide groove 25, the guide groove 25 can also be T-shaped, and one end of the wedge block 61 can be T-shaped, so as to facilitate preventing the wedge block 61 from detaching from the guide groove 25.

[0075] Reference Figure 6 and Figure 7 The locking assembly 6 also includes a second compression spring 62 connected between the wedge block 61 and the connecting strip 2. The extension and retraction direction of the second compression spring 62 is parallel to the first direction X. The second compression spring 62 is located in the guide groove 25. One end of the second compression spring 62 is fixedly connected to the wedge block 61, and the other end is fixedly connected to the bottom wall of the guide groove 25.

[0076] When the locking component 6 is in the locked position, one end of the wedge block 61 extends into the slide groove 24 to close the slide groove 24 and prevent the arc positioning strip 4 from sliding from the slide groove 24 into the positioning hole 23.

[0077] As the two wedge blocks 61 move toward the side that is far apart from each other, the locking assembly 6 changes from the locked posture to the unlocked posture. During this process, the deformation of the second compression spring 62 gradually increases, so that the second compression spring 62 has the force to push the two wedge blocks 61 toward the side that is close to each other. When the distance between the two wedge blocks 61 is sufficient for the arc positioning strip 4 to pass through, the arc positioning strip 4 can be inserted into the positioning hole 23 after passing through the slide groove 24.

[0078] Reference Figure 6 and Figure 7 The wedge block 61 has a wedge surface 611 located on the side of the wedge block 61 away from the positioning hole 23 in the first direction X. More specifically, in the direction in which each wedge block 61 approaches another wedge block 61, the wedge surface 611 is inclined from the groove 24 to the positioning hole 23. This allows the arc positioning strip 4 to push the two wedge blocks 61 toward the side away from each other by pushing the wedge surface 611 within the groove 24, thereby facilitating the connection of the connecting strips 2 on the sides of the two strip plates 1.

[0079] Reference Figure 8 By connecting the connecting strips 2 on the sides of two adjacent strip plates 1 together, the two adjacent strip plates 1 can be connected. In order to reduce the shaking of the two adjacent connecting strips 2, in some embodiments of this application, a first compression spring 7 is also included. One end of the first compression spring 7 is fixedly connected to the connecting strip 2, and the other end is fixedly connected to the strip plate 1. When the two adjacent strip plates 1 are connected, the first compression spring 7 between the two connecting strips 2 and the strip plate 1 is in a compressible state that can recover deformation, so that the two connecting strips 2 fit together under the thrust of the first compression spring 7.

[0080] Reference Figure 8 In order to further prevent two adjacent connecting strips 2 from shaking, in some embodiments of this application, a spacing adjustment component 8 is also included. The spacing adjustment component 8 includes two parallel rotating rods 81, two universal balls 82 and two ball seats 83.

[0081] The rotating rod 81 is perpendicular to the first direction X. One of the rotating rods 81 is a solid rod, and the other rotating rod 81 is a hollow rod. The solid rod 81 is inserted into the hollow rod 81 and can rotate along the thread of the hollow rod 81 to change the distance between the two rotating rods 81. The axis of the threaded rotation between the two rotating rods 81 is parallel to the length of the rotating rod 81.

[0082] Two rotating rods 81 are fixedly connected to a universal ball 82 at their opposite ends. Each universal ball 82 is freely rotatably connected to a ball seat 83. A ball seat 83 is fixedly connected to each of the connecting strip 2 and the strip plate 1. When the two rotating rods 81 are rotated relative to each other, the included angle between the strip plate 1 and the connecting strip 2 can be changed, thereby fixing the two adjacent strip plates 1.

[0083] The implementation principle of an adjustable arc prefabricated building template in this application embodiment is as follows: multiple strip plates 1 are arranged sequentially along the curve of the handrail. Then, the spacing adjustment component 8 is adjusted to adjust the connecting strips 2 on the sides of two strip plates 1 to a contact state. The arc positioning strip 4 is fixed with the locking component 6 and the pin 5, so that the two adjacent strip plates 1 can be fixed.

[0084] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable curvature prefabricated building formwork, characterized in that, include: A strip plate (1) has an outer plate surface (11), an inner plate surface (12) and two side plate surfaces (13). The height of the strip plate (1) is parallel to the first direction X, and the two side plate surfaces (13) are also parallel to the first direction X. A dihedral angle is formed between the outer plate surface (11) and the side plate surface (13). The edge at the intersection of the outer plate surface (11) and the side plate surface (13) is the first side edge (14). The angle A between the tangent of the outer plate surface (11) at the first side edge (14) and the side plate surface (13) is less than 90°, so that the distance between the two side plate surfaces (13) gradually decreases in the direction from the outer plate surface (11) to the inner plate surface (12). It also includes an angle adjustment component (3) and a connecting strip (2) having two side strips (21) and the connecting strip (2) being set parallel to the first direction X; A dihedral angle is formed between the two side faces (21), the edge at the intersection of the two side faces (21) is the second side edge (22), and the included angle B between the two side faces (21) is less than 90°; The first side edge (14) is in contact with the second side edge (22), and the sum of the included angle A and the included angle B is less than 90°; The angle adjustment component (3) is connected between the connecting strip (2) and the strip plate (1) to change the included angle between the connecting strip (2) and the strip plate (1); The angle adjustment component (3) includes multiple arc strips (31), and the central axis of the arc strips (31) is collinear with the line where the first side edge (14) and the second side edge (22) are located; Multiple arc strips (31) are distributed in a single circumference on a virtual circle, and the virtual circle is coaxial with the arc strips (31); Of the two arcuate strips (31) located at the ends, one is fixedly connected to the connecting strip (2), and the other is fixedly connected to the strip plate (1); Of two adjacent arc strips (31), one arc strip (31) is slidably connected to the other arc strip (31) along the circumference of the arc strip (31).

2. The adjustable curvature prefabricated building formwork according to claim 1, characterized in that, It also includes a first compression spring (7) fixedly connected between the connecting strip (2) and the strip plate (1); When the first compression spring (7) is in a compressible state, it has a force that pushes the connecting bar (2) toward the side away from the strip plate (1).

3. An adjustable curvature prefabricated building formwork according to any one of claims 1-2, characterized in that, The two sidewalls of the strip plate (1) are each provided with a connecting strip (2) on the side that is far apart from each other.

4. The adjustable curvature prefabricated building formwork according to claim 3, characterized in that, Of the connecting strips (2) on both sides of the strip plate (1), one of the connecting strips (2) is connecting strip one (a), and the other connecting strip (2) is connecting strip two (b); An arc-shaped positioning strip (4) is fixedly connected to the first connecting strip (a), and a positioning hole (23) is provided through the second connecting strip (b) along the second direction Y. The arc positioning strip (4) is coaxial with the arc strip (31); When the connecting strips (2) on the sides of two adjacent strip plates (1) come into contact, the positioning hole (23) on the second connecting strip (b) on the side of one of the strip plates (1) is used for the arc strip (31) on the second connecting strip (b) on the side of the other strip plate (1) to pass through; when the arc strip (31) passes through the positioning hole (23), the first side edge (14) and the second side edge (22) are in line contact.

5. The adjustable curvature prefabricated building formwork according to claim 4, characterized in that, The connecting strip (b) is provided with a groove (24), one end of which is connected to the positioning hole (23), and the other end penetrates the side wall of the connecting strip (b) away from the second side edge (22); The arc strip (31) passes through the groove (24), and the arc strip (31) can slide in the groove (24) in a direction perpendicular to the first side edge (14); It also includes a locking component (6) connected to the connecting strip (b), the locking component (6) being used to fix the arc strip (31) into the positioning hole (23).

6. The adjustable curvature prefabricated building formwork according to claim 5, characterized in that, The locking component (6) includes: Two wedge blocks (61) are provided, and each of the two inner sidewalls of the connecting strip (2) corresponds to one of the wedge blocks (61). The wedge blocks (61) are slidably connected to the connecting strip (b) along the first direction X; and The second compression spring (62) is connected to the connecting strip (b) by a corresponding second compression spring (62) for each wedge block (61). The extension and retraction direction of the second compression spring (62) is parallel to the first direction X. When the locking component (6) is in the locked position, the wedge block (61) blocks the slide groove (24) to prevent the arc strip (31) in the positioning hole (23) from moving into the slide groove (24); During the movement of the two wedges (61) toward the side away from each other, the locking assembly (6) is adjusted from the locked posture to the unlocked posture. When the locking assembly (6) is in the unlocked posture, the second compression spring (62) is in a compressible state with recoverable deformation and has a force that drives the two wedges (61) to move toward the side closer to each other.

7. The adjustable curvature prefabricated building formwork according to claim 6, characterized in that, The wedge block (61) has a wedge surface (611) located on the side of the wedge block (61) away from the positioning hole (23). The wedge surface (611) is in a first direction X, and in the direction from one wedge block (61) having the wedge surface (611) to another wedge block (61), the wedge surface (611) is inclined from the groove (24) toward the positioning hole (23).

8. The adjustable curvature prefabricated building formwork according to claim 7, characterized in that, It also includes a spacing adjustment component (8), which includes: Two parallel rotating rods (81) are connected by a threaded rotation, and the axis of rotation of the two rotating rods (81) is parallel to the length of the rod (81). Two omnidirectional balls (82), and two rotating rods (81) with their ends respectively fixedly connected to one of the aforementioned omnidirectional balls (82); and Two ball seats (83), each of the omnidirectional balls (82) is rotatably connected to one of the ball seats (83); the connecting strip (2) and the strip plate (1) are each fixedly connected to one of the ball seats (83).

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