A formwork support device for building concrete pouring construction

Abstract

This invention relates to the field of concrete construction technology and discloses a formwork support device for concrete pouring construction. It includes two mutually rotatably connected support rods and corner pieces rotatably installed at the ends of the support rods. Both ends of the two support rods are telescopically adjustable. The corner pieces have two rotatably adjustable corner plates that abut against the two sides of the corner of the formwork. A stepped surface is formed on the outer wall of the corner plate, and a support plate abuts between the two opposite stepped surfaces of adjacent corner pieces, with the support plate in close contact with the formwork. This invention can flexibly adapt to various angles of window corners, including acute, right, and obtuse angles. Simultaneously, by utilizing diagonal support to form a closed force transmission path from the center to the four corners, it can further improve the versatility and overall rigidity of the support device, thereby preventing deformation of the window corners.

Description

Technical Field

[0001] This invention relates to the field of concrete construction technology, specifically to a formwork support device for concrete pouring construction. Background Technology

[0002] In the construction of cast-in-place concrete structures, when windows (such as door and window openings) need to be reserved in the building walls, window formwork is usually erected at the predetermined location to ensure that the opening size is accurate and the edges are complete after the concrete is formed. The support system of the window formwork is the key to ensuring the quality of the opening. Among them, the support and fixation of the internal corners are particularly important. If the support is insufficient or improper, the internal corners of the window are prone to deformation, bulging or displacement during the concrete pouring process, which will lead to quality defects such as out-of-tolerance opening size and non-square corners, and thus affect the installation accuracy of the door and window frames later.

[0003] Currently, there are relatively mature technical solutions for supporting the internal corners of regular rectangular windows. Common practices include using L-shaped fixed steel corner molds with tie bolts for reinforcement or using integral welded steel frame wooden molds. These solutions are all based on the premise that the internal corners of the window are fixed 90° right angles. However, in actual projects, due to architectural design, windows are not always regular rectangles. There are also parallelograms, trapezoids, and irregular quadrilaterals.

[0004] Therefore, the applicability of window corner fittings that are fixed at 90° right angles is low. When supporting corners at different angles, they need to be customized as needed, resulting in poor versatility. Moreover, most existing corner fittings are independent components that are not adapted to the support structure, which leads to insufficient overall rigidity of the template support system at the window position, and the corner may still deform due to stress. Summary of the Invention

[0005] The purpose of this invention is to provide a formwork support device for building concrete pouring construction, which can flexibly adapt to the internal corners of windows with various angles such as acute, right, and obtuse angles. At the same time, by using diagonal support to form a closed force transmission path from the center to the four corners, the versatility and overall rigidity of the support device can be further improved, thereby avoiding deformation of the window corners.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a formwork support device for concrete pouring construction, comprising two support rods rotatably connected to each other and a corner piece rotatably installed at the end of the support rods, both ends of the two support rods being telescopically adjustable, and the corner piece having two rotatably adjustable corner plates, and the two corner plates being able to contact and abut against the two sides of the corner of the formwork. A stepped surface is formed on the outer wall of the corner plate, and a support plate abuts between two adjacent stepped surfaces of two corner pieces, and the support plate is in close contact with the template.

[0007] This formwork support device utilizes four corner brackets to support the four corners of the window formwork. By adjusting the angles of two corner plates within each bracket, it can adapt to different corner angles, flexibly accommodating acute, right, and obtuse angles. This eliminates the need for on-site cutting and assembly, further improving the versatility and reusability of the corner brackets. Combined with cross-designed support rods, the diagonal support method allows the overall support force to be directly transferred to the corner brackets and applied to the corners of the formwork, forming a closed force transmission path from the center to the four corners. This further enhances the overall rigidity of the window formwork support system, enabling it to resist uneven lateral pressure and vibration impact during concrete pouring, preventing overall window deformation, and improving the forming quality of the window and corners.

[0008] Optionally, the corner fitting includes a bracket, and the two corner plates are rotatably mounted on the inner edge of the bracket via pins. The outer walls on both sides of the bracket are provided with first sliding grooves, and the inner walls of the two first sliding grooves are slidably mounted with sliding pins. The end of the support rod is rotatably connected to the sliding pins, and the sliding pins are rotatably connected to the two corner plates with first connecting members.

[0009] Optionally, the support rod consists of a cylindrical component and two screw components that are slidably installed on the inner walls of the two cylindrical components respectively. The screw components extend out of the outer wall of the cylindrical component and are threadedly connected to an adjusting nut. The adjusting nut contacts and abuts against the end of the cylindrical component. The sliding pin is rotatably connected to the end of the screw component.

[0010] Optionally, the inside of the corner plate is provided with a through groove, and an abutment plate is slidably installed on the inner wall of the through groove. The side of the abutment plate forms a stepped outer wall. The outer walls on both sides of the bracket are provided with second sliding grooves, and the second sliding grooves are arranged in the same straight line as the first sliding grooves. A pin is slidably installed in both second sliding grooves. The pins are rotatably connected to the two abutment plates by second connecting members. A locking structure is also provided between the second connecting members and the pins to enable the two second connecting members to lock each other.

[0011] Optionally, the locking structure includes connecting ears formed on opposite ends of the two second connectors. Each of the two connecting ears has a through hole for the pin to pass through and rotate. The inner walls of the two through holes are enlarged with prism holes. A prism is slidably installed in one of the prism holes. The pin and the prism are threaded together.

[0012] Optionally, the template support device further includes a compensating rod, which consists of a sleeve in the middle and threaded rods threadedly connected to both ends of the sleeve. The protruding ends of the two threaded rods are respectively rotatably connected to the outer walls of the two support rods.

[0013] Optionally, a level is also installed on the outer wall of the sleeve.

[0014] Optionally, the support plate is designed to be arc-shaped, and the convex surface of the arc surface contacts and abuts against the template.

[0015] Optionally, the first connector is always located between the sliding pin and the rotation points of the two corner plates.

[0016] Optionally, the rotatable connection between the two support rods is provided with a bolt fastener.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: I. This invention, by setting two telescopic support rods that are rotatably connected to each other, and by rotatably installing a corner piece with an adjustable angle corner plate at the end of the support rod, allows the corner plate to be expanded and retracted through a sliding pin and a first connecting piece. This enables the device to flexibly adapt to various window corners such as acute, right, and obtuse angles. At the same time, by using diagonal support to form a closed force transmission path from the center to the four corners, the versatility and overall rigidity of the support device can be further improved, thereby avoiding deformation of the window corners.

[0018] Second, this invention adds an adjustable-length compensating rod between two support rods and installs a level on the sleeve of the compensating rod. This allows the compensating rod to compensate for uneven force in the direction of the force when supporting rectangular or irregular quadrilateral windows, forming a stable triangular structure with the two support rods. At the same time, the level can visually monitor whether the support is square, making it convenient for construction personnel to quickly calibrate.

[0019] Third, this invention creates a stepped surface on the corner plate and abuts against the arc-shaped support plate. At the same time, an abutment plate is slidably set inside the corner plate. With the help of the second connector, pin, and prism locking structure, the abutment plate and the support plate form an integral compressive resistance system during pouring, ensuring sealed support. When dismantling the formwork, simply rotate the pin in the opposite direction to release the lock, and then retract the support rod to make the corner plate automatically close and detach from the formwork. This achieves the dual technical effects of stable support during pouring and rapid, non-destructive dismantling after solidification, avoiding damage to the concrete corner caused by violent formwork removal. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the template support state for a square window according to the present invention; Figure 2 This is a three-dimensional structural diagram of the template support device of the present invention; Figure 3 This is a cross-sectional view of the two corner plates of the corner fitting of the present invention at right angles; Figure 4 This is an exploded three-dimensional structural diagram of the internal corner component of the present invention; Figure 5 This is an enlarged schematic diagram of the compensation rod of the present invention; Figure 6This is a cross-sectional view of the two internal corner plates of the internal corner piece of the present invention in an acute angle state; Figure 7 This is a schematic diagram of the template support state for a rectangular window according to the present invention; Figure 8 This is a simplified view of the support structure for the irregular quadrilateral of the present invention.

[0021] In the diagram: 1. Support rod; 11. Cylindrical component; 12. Screw component; 13. Adjusting nut; 2. Corner component; 21. Bracket; 22. Corner plate; 23. First slide groove; 24. Sliding pin; 25. First connecting component; 26. Stepped surface; 3. Compensating rod; 31. Sleeve; 32. Threaded rod; 4. Support plate; 5. Template; 61. Through groove; 62. Abutment plate; 63. Second connecting component; 64. Pin; 65. Second slide groove; 66. Connecting lug; 67. Prism hole; 68. Prism; 7. Level. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 8 The present invention provides a technical solution: a formwork support device for concrete pouring construction, comprising two support rods 1 rotatably connected to each other and a corner piece 2 rotatably installed at the end of the support rods 1, wherein both ends of the two support rods 1 are telescopically adjustable, and the corner piece 2 has two corner plates 22 that are rotatably adjustable, and the two corner plates 22 can contact and abut against the two sides of the corner of the formwork 5. The outer wall of the corner plate 22 is provided with a stepped surface 26. A support plate 4 abuts between the two stepped surfaces 26 of two adjacent corner pieces 2, and the support plate 4 is in close contact with the template 5.

[0024] When using this template support device, please refer to... Figure 1 The shape of template 5 is constructed according to the shape of the window. Then, two support rods 1 are placed in the window area. By adjusting the extension and retraction of the ends of the support rods, the rotation points of the two corner plates 22 of the corner piece 2 are made to abut against the corner of the window. Then, the angle of the two corner plates 22 is adjusted according to the angle of the corner so that they contact and abut against the outer walls of the two templates 5 at the corner, thus completing the corner support and diagonal support of the window template 5.

[0025] It is worth mentioning that before the corner piece 22 contacts the template 5, the support plate 4 is placed inside the stepped surface 26. Then, when the corner piece 2 contacts the template 5, the support plate 4 also contacts and abuts against the template 5. In this way, the corner piece 2 supports the corner area of ​​the window, while the support plate 4 supports the middle area of ​​the template 5. This not only improves the support stability of the template 5, but also allows the support plate 4 to form a whole between two adjacent corner pieces 2, forming an integrated force transmission structure, further improving the support stability of the template 5.

[0026] Furthermore, bolt fasteners can be provided at the rotatable connection of the two support rods 1, such as... Figure 1 and Figure 2 As shown, the centers of the two support rods 1 are connected by a hinge and a locking bolt is provided. After the support is in place, the rotating connection of the two support rods 1 is further tightened and fixed by the locking bolt, which can also increase the stability between the two support rods 1.

[0027] The support plate 4 is preferably arc-shaped, and the convex surface of the arc contacts and abuts against the template 5. In this way, when the middle of the template 5 is subjected to external concrete extrusion, it can be transmitted to the corner pieces 2 on both sides, so that the strength and stability of the corner pieces 2 can be further improved, avoiding deformation at the corner of the window and improving the forming quality at the corner of the window.

[0028] To facilitate adjustment of the corner plate 22, an implementation method for the corner piece 2 is provided, as follows: Figure 2 and Figure 3 As shown, the corner piece 2 includes a bracket 21, and two corner plates 22 are rotatably mounted on the inner edge of the bracket 21 via pins. The outer walls on both sides of the bracket 21 are provided with first sliding grooves 23. The inner walls of the two first sliding grooves 23 are slidably mounted with sliding pins 24. The end of the support rod 1 is rotatably connected to the sliding pins 24. The sliding pins 24 and the two corner plates 22 are rotatably connected with first connecting pieces 25.

[0029] During installation, the support rod 1 is placed inside the window, with its two corner pieces 2 corresponding to the two opposite corners of the window. Then, the two ends of the support rod 1 are extended outwards, causing the brackets 21 of the two corner pieces 2 to move towards the two corners until the pins of the brackets 21 abut against the corners. As the ends of the support rod 1 continue to extend, they will cause the sliding pins 24 to slide within the first groove 23, and under the action of the first connecting piece 25, the two corner plates 22 will unfold until their outer walls contact and abut against the inner walls of the two included corners, completing the installation and support of a single support rod 1 and two corner pieces 2. Specifically, as follows... Figure 3 As shown, Figure 3 The two corner plates are at right angles.

[0030] Similarly, install and support the other support rod 1 and its two end corner brackets 2 in the same way. This allows for diagonal support to fix the four inside corners of the window. Since most windows are regular rectangles during construction, the ends of the two support rods 1 can be extended to the same length during adjustment. Figure 1 and Figure 7 As shown.

[0031] However, if the window is an irregular quadrilateral (such as...) Figure 8 As shown in the simplified view), before the support rod 1 can be extended, certain preparatory steps are required. First, determine the intersection point of the diagonals of the window quadrilateral using a diagonal string method. This means the rotation connection point of the two support rods 1 should coincide with this intersection point. Then, measure the length from the intersection point to the corner of the quadrilateral using a ruler. This will determine the required extension distance at both ends of the support rod 1. Alternatively, you can measure the lengths of the four sides and the diagonals to calculate the intersection point. Then, the diagonal support for the irregular quadrilateral can be completed using the aforementioned support method. (See [reference needed]). Figure 6 , Figure 6 This is a schematic diagram showing the state where the two corner plates 22 form an acute angle.

[0032] In this way, through the cooperation between the corner piece 2 and the support rod 1, the corner piece 2 can not only adapt to the corners of regular rectangles and irregular quadrilaterals, making it able to cover most construction scenarios, but also eliminate the need to customize the corner piece 2 and support structure separately for irregular quadrilateral windows. At the same time, the diagonal support method can form an integrated load-bearing structure between the independent corner pieces 2, thereby improving the support stability of the template 5 and thus improving the forming quality of the window.

[0033] During the adjustment of the support rod 1, it is worth mentioning that the first connecting piece 25 is always located between the sliding pin 24 and the rotation points of the two corner plates 22, such as... Figure 3 As shown, regardless of whether the corner piece 2 supports an acute, right, or obtuse corner, the two first connectors 25 and the two corner plates 22 maintain a rhomboid shape to ensure the supporting effect of the first connectors 25 on the corner plates 22.

[0034] However, except for square windows, whether the window is rectangular or irregularly shaped, the forces exerted by the two support rods 1 in different directions (vertical and horizontal) are uneven when the window is in a supported state. Therefore, in order to improve the stability of the support rods 1, a compensating rod 3 is added between the two support rods 1, such as... Figure 1 , Figure 2 and Figure 5As shown, the compensating rod 3 consists of a sleeve 31 in the middle and threaded rods 32 threaded to both ends of the sleeve 31. The protruding ends of the two threaded rods 32 are rotatably connected to the outer walls of the two support rods 1 respectively.

[0035] by Figure 7 Taking a rectangular window as an example, during the pouring process, due to the angle between the corner piece 2 and the support rod 1, the pressure of the two support rods 1 in the vertical direction is greater than that in the horizontal direction. However, through the design of the compensating rod 3, the horizontal force of the two support rods 1 can be compensated, forming a synergistic force. The triangular support structure formed between the compensating rod 3 and the two support rods 1 constrains the rods to each other, so that the support device can resist the pouring pressure of concrete in an overall form, thereby improving the ability of the support device to resist complex loads.

[0036] Moreover, when supporting the regular rectangular window template 5, the level 7 installed on the outer wall of the sleeve 31 can be used to determine whether the sleeve 31 is in a horizontal state, and thus whether the template 5 supported by the four inside corners is rectangular, which can play a certain monitoring role.

[0037] Based on this, to facilitate the applicability and adjustability of the support rod 1, an implementation method for the support rod 1 is provided, specifically as follows: Figure 2 and Figure 3 As shown, the support rod 1 consists of a cylindrical part 11 and two screw parts 12 that are slidably installed on the inner walls of the two ends of the cylindrical part 11. The screw parts 12 extend out of the outer wall of the cylindrical part 11 and are threadedly connected to the adjusting nut 13. The adjusting nut 13 contacts and abuts against the end of the cylindrical part 11. The sliding pin 24 passes through and is rotatably connected to the end of the screw part 12.

[0038] First, the screw 12 is slidably installed inside the cylinder 11 via a flat key. During adjustment, the screw 12 can be extended outward by turning the adjusting nut 13 with a wrench or other field tools through the threaded engagement, thus completing the adjustment.

[0039] This adjustment method makes disassembly more convenient. When the screw 12 is pulled outward, the adjusting nut 13 can be pulled out at the same time, which facilitates on-site storage and organization. Moreover, before support, the adjusting nut 13 can be rotated to adjust its position on the screw 12. This way, after it is inserted into the cylinder 11, it can be closer to the support state. Only minor adjustments are needed to make the corner piece 2 support force. This can reduce the preparatory work before support and improve work efficiency.

[0040] It is worth mentioning that the side wall of the cylindrical component 11 can be provided with a hollowed-out groove, and a scale can be added to the outer wall of the groove. This allows for a more intuitive and specific observation of the extension length of the screw component 12, making it more convenient to support the irregular quadrilateral window.

[0041] During the concrete pouring process, the formwork 5 will be subjected to compression from all directions, further tightening the overall support structure. Simultaneously, the support plate 4 and the corner plate 22 of the corner piece 2 will be further tightened. (See also...) Figure 1 The four corner pieces 2 and the four support plates 4 will be compressed together by external pressure from all directions. To facilitate the disassembly of the support plates 4 and corner pieces 2 after the concrete has solidified, further improvements are made to the corner plate 22, specifically as follows: Figure 2 and Figure 3 As shown, the inside of the corner plate 22 is provided with a through groove 61. The inner wall of the through groove 61 is slidably installed with an abutment plate 62, and the side of the abutment plate 62 forms the outer wall of the stepped surface 26. The outer walls of both sides of the bracket 21 are provided with second sliding grooves 65, and the second sliding grooves 65 are arranged in the same straight line as the first sliding groove 23. The two second sliding grooves 65 are slidably installed with pins 64. The pins 64 and the two abutment plates 62 are rotatably connected with second connecting members 63. The second connecting members 63 and the pins 64 are also provided with a locking structure that enables the two second connecting members 63 to lock each other.

[0042] The locking structure includes connecting ears 66 formed on opposite ends of two second connectors 63. Each connecting ear 66 has a through hole for the pin 64 to pass through and rotate. The inner wall of each through hole is enlarged with a prism hole 67. A prism 68 is slidably installed in one of the prism holes 67. The pin 64 and the prism 68 are threaded together.

[0043] As described above, the two ends of the support plate 4 are respectively installed within the stepped surface 26, and its sides abut against the stepped sidewalls of the stepped surface 26. Through the design of the abutment plate 62, its sides form the stepped sidewalls of the stepped surface 26. This means that the lateral force of the support plate 4 will act on the abutment plate 62. During the support installation stage, it is necessary to first adjust the position of the pin 64 within the second slide groove 65 and ensure that the two second connecting pieces 63 are in a straight line. Figure 3As shown, the pin 64 is rotated by a wrench, and the prism 68 is moved axially by the threaded engagement between the pin 64 and the prism 68 until it slides from one connecting lug 66 into the prism hole 67 in the other connecting lug 66, thus locking the two second connecting pieces 63 and keeping them on the same plane. This creates a triangular structure between the two second connecting pieces 63 and the two corner plates 22. When the corner plates 22 are adjusted, the two abutting plates 62 slide on the corner plates 22 under the action of the two second connecting pieces 63. The sidewall of the abutting plate 62 always protrudes from the sidewall of the stepped surface 26. After the support plate 4 is installed, the side of the abutting plate 62 will replace the original stepped sidewall of the stepped surface 26 to bear the force at both ends of the support plate 4, and the triangular structure formed between the two second connecting pieces 63 and the two corner plates 22 provides stable support. At the same time, it also forms an integral anti-compression structure between the support plate 4 and the corner pieces 2.

[0044] During disassembly, simply use a wrench or other tools to rotate the pin 64 in the opposite direction, causing the prism 68 to move in the opposite direction to release the locking effect between the two second connecting parts 63. Then, by tapping the pin 64, it is moved towards the rotation point of the two corner plates 22. Under the action of the two second connecting parts 63, the abutment plates 62 on the two corner plates 22 will be disengaged from the support plate 4. Thus, when the adjusting nut 13 is loosened, the screw 12 can retract axially, which can directly drive the two corner plates 22 to reduce the included angle, thereby disengaging them from the support plate 4 and the template 5, and thus completing the disassembly process of the corner piece 2.

[0045] In this way, the abutment plate 62 can not only ensure stable support for the support plate 4 during the pouring process, but also facilitate quick disassembly after molding, avoiding the problem of difficulty in disassembling the support structure later.

[0046] To improve the locking effect of prism 68, see [reference needed]. Figure 4 One of the second connectors 63 has two connecting ears 66, and a prism 68 is slidably installed in each of the two connecting ears 66. The other second connector 63 has only one connecting ear 66. In this way, the thread on the pin 64 is set as a bidirectional thread, so that when rotating, the two prisms 68 can be simultaneously inserted into the prism hole 67 in the middle connecting ear 66 to lock. This design can make the force on the connecting ear 66 more uniform, and the structural stability and structural strength are also higher.

[0047] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A formwork support device for concrete pouring construction, comprising two support rods (1) rotatably connected to each other, wherein both ends of the two support rods (1) are telescopically adjustable, characterized in that, Also includes: Rotate the corner piece (2) installed at the end of the support rod (1). The corner piece (2) has two adjustable corner plates (22), and the two corner plates (22) can contact and abut against the two sides of the corner of the template (5). A stepped surface (26) is formed on the outer wall of the corner plate (22). A support plate (4) abuts between two adjacent stepped surfaces (26) of the two corner pieces (2), and the support plate (4) is in close contact with the template (5).

2. The formwork support device for concrete pouring construction according to claim 1, characterized in that: The corner piece (2) includes a bracket (21), and two corner plates (22) are rotatably mounted on the inner edge of the bracket (21) by means of a pin. The outer walls on both sides of the bracket (21) are provided with first sliding grooves (23), and the inner walls of the two first sliding grooves (23) are slidably mounted with sliding pins (24). The end of the support rod (1) is rotatably connected to the sliding pins (24), and the sliding pins (24) and the two corner plates (22) are rotatably connected with first connecting pieces (25).

3. The formwork support device for concrete pouring construction according to claim 2, characterized in that: The support rod (1) consists of a cylindrical part (11) and two screw parts (12) that are slidably installed on the inner walls of the two ends of the cylindrical part. The screw parts (12) extend out of the outer wall of the cylindrical part (11) and are threadedly connected to the adjusting nut (13). The adjusting nut (13) contacts and abuts against the end of the cylindrical part (11). The sliding pin (24) is rotatably connected to the end of the screw part (12).

4. The formwork support device for concrete pouring construction according to claim 2, characterized in that: The inside of the corner plate (22) is provided with a through groove (61). The inner wall of the through groove (61) is slidably installed with an abutment plate (62). The side of the abutment plate (62) forms the outer wall of the stepped surface (26). The outer walls of both sides of the bracket (21) are provided with second sliding grooves (65). The second sliding grooves (65) and the first sliding groove (23) are arranged in the same straight line. The two second sliding grooves (65) are slidably installed with pins (64). The pins (64) and the two abutment plates (62) are rotatably connected with second connecting members (63). The second connecting members (63) and the pins (64) are also provided with a locking structure that enables the two second connecting members (63) to lock each other.

5. The formwork support device for concrete pouring construction according to claim 4, characterized in that: The locking structure includes connecting ears (66) formed on opposite ends of two second connectors (63). Each of the two connecting ears (66) has a through hole for the pin (64) to pass through and rotate. The inner walls of the two through holes are enlarged with prism holes (67). A prism (68) is slidably installed in one of the prism holes (67). The pin (64) and the prism (68) are threaded together.

6. The formwork support device for concrete pouring construction according to claim 1, characterized in that: The template support device also includes a compensating rod (3), which is composed of a sleeve (31) in the middle and threaded rods (32) threadedly connected to both ends of the sleeve (31). The protruding ends of the two threaded rods (32) are respectively rotatably connected to the outer walls of the two support rods (1).

7. The formwork support device for concrete pouring construction according to claim 6, characterized in that: A level (7) is also installed on the outer wall of the sleeve (31).

8. The formwork support device for concrete pouring construction according to any one of claims 1-7, characterized in that: The support plate (4) is arc-shaped, and the convex surface of the arc surface contacts and abuts against the template (5).

9. The formwork support device for concrete pouring construction according to claim 2, characterized in that: The first connector (25) is always located between the sliding pin (24) and the rotation point of the two corner plates (22).

10. The formwork support device for concrete pouring construction according to claim 1, characterized in that: The two support rods (1) are provided with bolt fasteners at the rotatable connection.

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