A method of casting a top square cap

Abstract

The application relates to the technical field of building, and provides a pouring method for a square cap at a top end, which comprises the following steps: S1, installing a formwork plate; S2, installing a support structure, one end of the formwork plate is provided with a support corner, and the support structure is used for being connected with the support corner; the support structure comprises a plurality of support plates, all the support plates are sequentially installed on the support corner, and two adjacent support plates are detachably connected through rotating assemblies; all the support assemblies enclose a first pouring space; S3, pouring concrete; and S4, sequentially removing the support structure and the formwork plate, and completing the pouring of the square cap. The pouring method for the square cap at the top end is convenient for connecting the square cap with beams with different angles.

Description

Technical Field

[0001] This application relates to the field of building technology, and in particular to a method for casting a square cap at the top. Background Technology

[0002] In building construction, concrete needs to be poured. Before pouring concrete, a template needs to be prepared using slabs. When pouring, the concrete is poured into the template. A support column is used to connect the ground to the ceiling, providing support. When the top of the support column is equipped with a cubic cap, this cap is generally used at the intersection of multiple beams at the top.

[0003] When constructing the square cap, a base slab is first poured at the top of the support column, and the formwork is installed on the base slab so that the side walls of the formwork can connect with the beam. Then, concrete is poured into the formwork to form the square cap. However, due to the irregular intersection patterns of multiple beams, the formwork for the square cap requires on-site cutting and welding of the sheet metal, and the cut shapes often vary. The beams and the square cap are connected at multiple angles, requiring different angled formwork, resulting in low efficiency. Summary of the Invention

[0004] To facilitate the connection of the square cap to beams at different angles, this application provides a method for casting the top square cap.

[0005] The casting method for the top square cap provided in this application adopts the following technical solution: A method for casting a square cap at the top, comprising the following steps: S1 Install the support formwork, and connect two adjacent support formworks through a fixing component, and connect all the support formworks one by one to surround the side wall of the bottom plate; S2 is a support structure for connection to the corner support; the support structure includes multiple support plates, all of which are installed sequentially at the corner support, and adjacent support plates are detachably connected by a rotating assembly; all support assemblies enclose a first casting space. S3 pours concrete, pouring concrete into the first pouring space, and forms a square cap after the concrete has solidified. S4 dismantles the supporting structure and formwork one by one to complete the pouring of the square cap.

[0006] By adopting the above technical solution, multiple support formworks are enclosed on the outer wall of the column and connected in sequence with support plates, so that the support plates on the side of the support corners that are close to each other abut against the two sides of the beam; and by detachably connecting two adjacent support plates, the second side formwork can be matched with beams of different widths.

[0007] By setting up a rotating component, adjacent support plates can be rotated, allowing the support plate on the side away from the support corner to abut against the sidewall of the beam at different angles. This reduces the need for on-site cutting and welding of the plates for the second side mold of the square cap, thus improving work efficiency.

[0008] Optionally, the rotating assembly includes a mounting part, a rotating shaft, a telescopic component, and a fixing component. The mounting part is disposed on one side of the support plate, and the adjacent support plate has a mounting groove for the mounting part to be inserted into. The mounting part has telescopic grooves at both ends, and the rotating shaft is movably mounted in the telescopic groove. The inner wall of the mounting groove has a rotating groove for the rotating shaft to be inserted into. The telescopic component is used to drive the rotating shaft to be inserted into the rotating groove, and the fixing component is used to fix the rotating shaft to the inner wall of the rotating groove.

[0009] By adopting the above technical solution, when connecting two adjacent support plates, the mounting part is inserted into the mounting groove, and the telescopic component is used to drive the two rotating shafts to be inserted into the rotating grooves respectively, which can reduce the situation where the mounting part is dislodged from the mounting groove; and the rotating shaft can be rotated and installed in the rotating groove to adjust the angle between the two adjacent support plates. When the support plate at the corner end abuts against the side wall of the beam, the rotating shaft is fixed to the rotating groove using a fastener, which reduces the situation where the two support plates rotate freely.

[0010] Optionally, the telescopic component includes a rotating rod and a rotating part. The support plate has a movable groove, and the two ends of the movable groove are respectively connected to two telescopic grooves. The rotating rod is rotatably installed in the movable groove. The rotating rod is provided with a first threaded part and a second threaded part, and the threads of the first threaded part and the second threaded part are opposite in direction. The two rotating shafts are respectively rotatably connected to the first threaded part and the second threaded part. The rotating part is used to drive the rotating rod to rotate.

[0011] By adopting the above technical solution, the rotating part rotates the rotating rod. Since the two rotating shafts are respectively engaged with the first threaded part and the second threaded part, the two rotating shafts can be moved away from each other and inserted into the rotating groove. Moreover, the structure is simple, and the distance between the two rotating shafts can be changed simultaneously by rotating the rotating part, thereby improving work efficiency. Optionally, the fixing member includes a first gear, which is mounted on the side of the rotating shaft away from the mounting part, and the rotating groove has a first tooth groove for the first gear to be inserted.

[0012] By adopting the above technical solution, the insertion and engagement of the first gear and the first tooth groove can reduce the situation where the rotating shaft rotates freely in the rotating groove; and by inserting and engaging the first gear and the first tooth groove at different angles, it is convenient to adjust the angle between the two support plates and fix them.

[0013] Optionally, the bottom of the support plate is provided with an ejection groove that communicates with the first tooth groove, and an ejection block is slidably installed in the ejection groove; a first spring is provided between the ejection block and the inner wall of the ejection groove, and the elastic force of the first spring is used to drive the ejection block to partially pass through the first tooth groove; the support template is provided with a connecting groove for the ejection block to be inserted.

[0014] By adopting the above technical solution, during the process of the first gear being inserted into the first tooth groove, the ejector block abuts against the ejector block and ejects the ejector block out of the ejector groove to be inserted into the connecting groove, which enables the support plate to be connected to the formwork and makes all support plates and formwork form a whole, reducing the possibility of breakage between two adjacent support plates when pouring concrete into the first pouring space.

[0015] Optionally, the rotating part includes a first bevel gear, a second bevel gear, and an unlocking rod. The first bevel gear is fixed to the rotating rod. The support plate has an unlocking hole that communicates with the movable groove, and the unlocking rod is rotatably installed in the unlocking hole. The second bevel gear is fixed to the unlocking rod, and the first and second bevel gears mesh with each other. The support plate is provided with a positioning component for fixing the unlocking rod to the support plate.

[0016] By adopting the above technical solution, rotating the unlocking lever can cause the second bevel gear to rotate, thereby causing the first bevel gear to rotate under the meshing of the second bevel gear, which in turn drives the rotating rod to rotate.

[0017] Optionally, the outer diameter of the second bevel gear is larger than the outer diameter of the first bevel gear.

[0018] By adopting the above technical solution, the outer diameter of the second bevel gear is larger than that of the first bevel gear. This allows the second bevel gear to rotate fewer times than the first bevel gear during the rotation of the first bevel gear. This reduces the number of times the worker needs to rotate the unlocking lever, lowers workload, and improves work efficiency.

[0019] Optionally, the positioning component includes a second gear, a sleeve, and a second spring. The sleeve is movably mounted on the unlocking rod. The second gear is fixed to the sleeve, and the second spring is installed inside the sleeve. The support plate has a second toothed groove, and the elastic force of the second spring drives the second gear to insert into the second toothed groove.

[0020] By adopting the above technical solution, when fixing the rotating shaft in the rotating groove, the second gear is inserted into the second tooth groove to reduce the situation where the rotating rod rotates freely and causes the rotating shaft to move; and the elastic force of the second spring drives the second gear to be inserted into the second tooth groove under normal conditions, further improving the stability of fixing the two adjacent support plates.

[0021] Optionally, the support template has an insertion slot for the support corner to be inserted, the inner wall of the insertion slot has a first snap-fit ​​groove, a snap-fit ​​block is movably installed in the first snap-fit ​​groove, a third spring is provided between the snap-fit ​​block and the inner wall of the first snap-fit ​​groove, and the third spring is kept in a compressed state; the support corner has a second snap-fit ​​groove for the snap-fit ​​block to be inserted.

[0022] By adopting the above technical solution, the insertion and engagement of the snap-fit ​​block and the second snap-fit ​​groove can detachably install the support corner onto one end of the support formwork; if the beam is located at the junction of two support formworks, the support formwork can be removed, further improving the installation efficiency of the second side formwork.

[0023] Optionally, the fixing component includes a screw, one end of the support template is provided with a fixing groove for adjacent support templates to be inserted, and the inner wall of the fixing groove is provided with a threaded hole; the other end of the support template is provided with multiple threaded grooves, and when adjacent support templates are inserted into the fixing groove, the screw engages with the threaded hole and the first threaded groove.

[0024] By adopting the above technical solution, the screw is inserted into the threaded hole and matched with different threaded grooves, which can change the spacing between the two side support formworks, thereby changing the square cap groove formed by the concrete pouring of the second side formwork, thus improving the practicality of the formwork.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a rotating component, adjacent support plates can be rotated, thereby enabling the support plate on one side of the support corner to abut against the side wall of the beam at different angles, reducing the need for on-site cutting and welding of the plates for the second side mold of the square cap, and improving work efficiency; 2. By setting an ejector block, during the process of the first gear being inserted into the first tooth groove, the ejector block abuts against the ejector block and ejects the ejector block out of the ejector groove to engage with the connecting groove. This enables the support plate to be connected to the formwork and makes all support plates and formwork form a whole, reducing the possibility of breakage between two adjacent support plates when pouring concrete in the first pouring space. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of this embodiment; Figure 2 yes Figure 1 A magnified view of a portion at point A; Figure 3 This is a cross-sectional view of the support template in this embodiment, mainly showing the fixing components; Figure 4 This is a partial cross-sectional view of the protrusion block in this embodiment; Figure 5 This is a partial cross-sectional view of the support plate in this embodiment, mainly showing the rotating rod; Figure 6 yes Figure 5 A magnified view of a portion at point B; Figure 7 This is a partial sectional view of the mounting section in this embodiment; Figure 8 This is a partial cross-sectional view of the support plate in this embodiment from another angle, mainly showing the second bevel gear; Figure 9 This is a partial cross-sectional view of the positioning component in this embodiment; Figure 10 yes Figure 1 A magnified view of a portion of point C.

[0027] Explanation of reference numerals in the attached drawings: 1. Support template; 11. Protruding block; 12. Fixing groove; 13. Threaded hole; 14. Threaded groove; 15. Insertion groove; 16. First snap-fit ​​groove; 17. Pull groove; 18. Pull rod; 2. Fixing component; 21. Hidden block; 22. Fourth spring; 23. Rubber layer; 3. Support structure; 31. Support plate; 32. Mounting groove; 33. Rotation groove; 34. First tooth groove; 35. Ejection groove; 36. Ejection block; 37. Limiting block; 38. Limiting groove; 39. First spring; 4. Support corner; 41. Insertion block; 42. Second snap-fit ​​groove; 43. Snap-fit ​​block; 44. Third spring; 45. Guide surface; 5. Rotating assembly; 51. Mounting part; 511. Telescopic groove; 512. Movable groove; 513. Connecting groove; 514. Unlocking hole; 515. Second tooth groove; 52. Rotating shaft; 53. Telescopic component; 531. Rotating rod; 532. First threaded part; 533. Second threaded part; 534. Rotating block; 535. Connecting rod; 536. Rotating part; 537. First bevel gear; 538. Second bevel gear; 539. Unlocking rod; 54. Fixing component; 6. Positioning assembly; 61. Second gear; 62. Sleeve; 63. Second spring; 64. Positioning block; 65. Positioning groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0029] This application discloses a method for casting a square cap at the top.

[0030] Reference Figure 1 A method for casting a square cap at the top, comprising the following steps: S1 Install the support template 1. The number of support templates 1 is the same as the number of faces of the base plate. In this embodiment, there are four support templates 1. Two adjacent support templates 1 are connected by a fixing component 2. All support templates 1 are connected in sequence to form a square cap shape. Then, all support templates 1 are fitted onto the base plate and connected to the base plate. Reference Figure 2The fixing component 2 includes a screw, and one end of the support template 1 is integrally formed with a protrusion 11. The outer diameter of the protrusion 11 is larger than the outer diameter of the support template 1. The protrusion 11 is provided with a fixing groove 12. The inner diameter of the fixing groove 12 matches the outer diameter of the support template 1. The top of the protrusion 11 is provided with a threaded hole 13 that communicates with the fixing groove 12.

[0031] Reference Figure 3 The support formwork 1 has multiple threaded grooves 14 on its surface, and all threaded grooves 14 are spaced apart along the length of the support formwork 1. A hidden block 21 is movably installed in the threaded groove 14. In this embodiment, the outer wall of the hidden block 21 is wrapped with a rubber layer 23. The rubber layer 23 can press against the inner wall of the threaded groove 14 to reduce the situation of concrete entering the threaded groove 14. A fourth spring 22 is provided on the hidden block 21 and the inner wall of the threaded groove 14. The elastic force of the fourth spring 22 drives the hidden block 21 to cover the surface of the threaded groove 14.

[0032] When connecting two adjacent support templates 1, insert the adjacent support templates 1 into the fixing groove 12 so that the threaded hole 13 and the threaded groove 14 are aligned. At this time, the screw is threaded into the threaded hole 13 and moved toward the side of the threaded groove 14. The screw abuts against the hidden block 21 and forces the ejector block 36 to move toward the side of the threaded groove 14, so that the screw and the threaded groove 14 cooperate, thus completing the fixing of the two adjacent support templates 1.

[0033] S2 is installed with support structure 3. The protruding block 11 is detachably installed with support corner 4. Multiple sets of support structure 3 are provided. The support structure 3 is installed on the support corner 4 and abuts against the upper surface of the support template 1. All support structures 3 enclose and form a first pouring space. The support structure 3 includes multiple support plates 31. All support plates 31 are installed on the support corner 4 in sequence. Two adjacent support templates 1 are detachably connected by a rotating component 5. In this embodiment, the support template 1 and the support corner 4 are connected by the rotating component 5.

[0034] S3 involves pouring concrete into the first pouring space, which then solidifies to form a square cap.

[0035] S4 dismantles the supporting structure 3 one by one, sets up formwork 1, and completes the pouring of the square cap.

[0036] Reference Figure 2 and Figure 4In step S2, a plug block 41 is fixed to one end of the support 4, and a plug groove 15 is provided at one end of the protruding block 11. The plug block 41 is inserted into the plug groove 15. A first snap-fit ​​groove 16 is provided on the inner wall of the plug groove 15, and a snap-fit ​​block 43 is slidably installed in the first snap-fit ​​groove 16. A guide surface 45 is provided on the side of the snap-fit ​​block 43 away from the first snap-fit ​​groove 16. The distance from the end of the guide surface 45 away from the first snap-fit ​​groove 16 to the bottom wall of the plug groove 15 is smaller than the distance from the end of the guide surface 45 near the first snap-fit ​​groove 16 to the bottom wall of the plug groove 15. A third spring 44 is provided between the snap-fit ​​block 43 and the inner wall of the snap-fit ​​groove. The elastic force of the third spring 44 is used to force the snap-fit ​​block 43 to move on the side away from the plug groove 15. A second snap-fit ​​groove 42 is provided on the plug block 41 for the snap-fit ​​block 43 to be inserted into.

[0037] Reference Figure 4 All grooves 17 are opened on the outer wall of the protrusion 11, and the grooves 17 are connected to the first snap-fit ​​groove 16. A pull rod 18 is movably installed in the groove 17. One end of the pull rod 18 is fixed to the snap-fit ​​block 43, and the other end of the pull rod 18 passes through the groove 17 and is exposed to the outside. By pulling the pull rod 18, the position of the snap-fit ​​block 43 in the first snap-fit ​​groove 16 can be changed, so as to cancel the fixation between the support corner 4 and the protrusion 11.

[0038] Reference Figure 5 In this embodiment, the rotating component 5 includes a mounting part 51, a rotating shaft 52, a telescopic member 53, and a fixing member 54. The mounting part 51 is integrally formed on one side of the support plate 31. The support plate 31 has a mounting groove 32 for the mounting parts 51 of adjacent support plates 31 to be inserted into. The mounting part 51 has telescopic grooves 511 at both opposite ends. There are two sets of rotating shafts 52, and the two sets of rotating shafts 52 are movably installed in the two telescopic grooves 511 respectively.

[0039] Reference Figure 6 The inner wall of the mounting groove 32 has a rotating groove 33, and the telescopic member 53 is used to drive the rotating shaft 52 to be inserted into the rotating groove. In this embodiment, the fixing member 54 includes a first gear, which is fixed to the side of the rotating shaft 52 away from the telescopic groove 511. The bottom wall of the rotating groove 33 has a first tooth groove 34 for the first gear to be inserted. When the rotating shaft 52 and the first gear are both inserted into the rotating groove 33, the angle between the two support plates 31 can be adjusted. After the angle of the support angle 4 of the two support plates 31 is adjusted, the rotating shaft 52 is driven to move toward the side away from the telescopic groove 511, so that the first gear is inserted into the first tooth groove 34, thus completing the fixing of the two support plates 31.

[0040] Reference Figure 7The support plate 31 has an ejector groove 35 at its bottom, which is connected to the first toothed groove 34. An ejector block 36 is slidably installed in the ejector groove 35, and a limit block 37 is provided on the side wall of the ejector block 36. A limit groove 38 is provided on the inner wall of the ejector groove 35 for the limit block 37 to slide. A first spring 39 is provided between the limit block 37 and the inner wall of the limit groove 38. The elastic force of the first spring 39 drives the ejector block 36 to move toward one side of the first toothed groove 34 and partially enter the first toothed groove 34. The surface of the support template 1 has a connecting groove for the ejector block 36 to be inserted. In this embodiment, the connecting groove and the threaded groove 14 can be set as the same groove, which can reduce the number of grooves in the support template 1 and improve the strength of the support template 1.

[0041] During the process of the first gear being inserted into the first tooth groove 34, the ejector block 36 abuts against the ejector block 36 and moves the ejector block 36 toward the side away from the ejector groove 35 and engages with the connecting groove, which enables the support plate 31 to be connected to the support formwork 1 and makes all the support plates 31 and the support formwork 1 form a whole, reducing the possibility of breakage of two adjacent support plates 31 when pouring concrete into the first pouring space.

[0042] Reference Figure 5 The telescopic component 53 includes a rotating rod 531 and a rotating part 536. The mounting part 51 has a movable groove 512, and the two ends of the movable groove 512 are respectively connected to two telescopic grooves 511 through a connecting groove 513. The two ends of the rotating rod 531 are respectively rotatably mounted between two opposite inner walls of the movable groove 512, and the two ends of the rotating rod 531 are respectively facing the two telescopic grooves 511. The two ends of the telescopic groove 511 are respectively provided with a first threaded part 532 and a second threaded part 533, and the first threaded part 532 and the second threaded part 533 are facing opposite directions. The rotating rod 531 is equipped with two rotating blocks 534, which respectively engage with the first threaded portion 532 and the second threaded portion 533. Each rotating block 534 is equipped with a connecting rod 535, which passes through the connecting groove 513 and is fixed to the rotating shaft 52. The rotating part 536 is used to rotate the rotating rod 531. During the rotation of the rotating rod 531, the two rotating blocks 534 are threadedly engaged with the first threaded portion 532 and the second threaded portion 533, causing the two rotating blocks 534 to move towards opposite sides, thereby causing the two rotating shafts 52 to move within the telescopic groove 511.

[0043] Reference Figure 8The rotating part 536 includes a first bevel gear 537, a second bevel gear 538, and an unlocking rod 539. The diameter of the first bevel gear 537 is smaller than that of the second bevel gear 538. The first bevel gear 537 has a through hole, and the rotating rod 531 passes through the through hole, so that the first bevel gear 537 is located between the first threaded part 532 and the second threaded part 533, and the outer wall of the rotating rod 531 is fixed to the inner wall of the through hole.

[0044] The outer wall of the support plate 31 is provided with an unlocking hole 514 that is connected to the movable groove 512. The unlocking rod 539 is rotatably installed in the unlocking hole 514. The support plate 31 is provided with a positioning component 6 for fixing the unlocking rod 539 to the inner wall of the unlocking hole 514. The end of the second bevel gear 538 near the movable groove 512 is fixed to the unlocking rod 539, and the first bevel gear 537 and the second bevel gear 538 mesh with each other.

[0045] Reference Figure 9 The positioning component 6 includes a second gear 61, a sleeve 62, and a second spring 63. The sleeve 62 is sleeved on the end of the unlocking rod 539 away from the second bevel gear 538. A positioning block 64 is provided on the outer wall of the unlocking rod 539. A positioning groove 65 is provided on the inner wall of the sleeve 62 for the positioning block 64 to slide. The cooperation between the positioning block 64 and the positioning groove 65 can reduce the situation where the sleeve 62 rotates freely on the unlocking rod 539.

[0046] Reference Figure 9 and Figure 10 The two ends of the second spring 63 are fixed to the inner wall of the sleeve 62 and the unlocking rod 539 respectively. The elastic force of the second spring 63 is used to drive the sleeve 62 to move toward the side of the unlocking rod 539. The second gear 61 is fixed to the outer wall of the sleeve 62. The outer wall of the support plate 31 is provided with a second tooth groove 515 for the second gear 61 to be inserted. The second tooth groove 515 is connected to the unlocking groove.

[0047] The second gear 61 is inserted into the second tooth groove 515 to reduce the possibility of the rotating rod 531 rotating freely and causing the rotating shaft 52 to move, so as to keep the rotating shaft 52 normally inserted into the rotating groove 33; and the elastic force of the second spring 63 drives the second gear 61 to be normally inserted into the second tooth groove 515, further improving the stability of the two adjacent support plates 31.

[0048] The implementation principle of the casting method for the top square cap in this application embodiment is as follows: By enclosing multiple support formwork 1s on the outer wall of the column and connecting them sequentially with support plates 31, the support plates 31 on the side of the support corners 4 that are close to each other abut against the opposite side walls of the beam. Through the insertion and engagement of the rotating shaft 52 and the rotating groove 33, the detachable connection of two adjacent support plates 31 can be completed. This allows the number of support plates 31 to be installed to be determined according to the distance between the two support corners 4 and the opposite side walls of the beam, and can be matched with beams of different widths.

[0049] Furthermore, the rotating shaft 52 rotates within the rotating groove 33, which can adjust the angle between two adjacent support plates 31, so that the support plate 31 located at the end away from the support angle 4 abuts against the beam sidewall at different angles, reducing the need for on-site cutting and welding of the plate material for the second side mold of the square cap, and improving work efficiency.

[0050] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for casting a square cap at the top, characterized in that: Includes the following steps, S1 Install the support template (1), and connect two adjacent support templates (1) through the fixing component (2), and connect all the support templates (1) one by one and surround the side wall of the bottom plate; S2 is installed with a support structure (3), and a corner support (4) is installed at one end of the support template (1). The support structure (3) is used to connect with the corner support (4). The support structure (3) includes multiple support plates (31). All support plates (31) are installed sequentially at the corner support (4). Two adjacent support plates (31) are detachably connected by a rotating assembly (5). All support assemblies enclose a first pouring space. S3 pours concrete, pouring concrete into the first pouring space, and forms a square cap after the concrete has solidified. S4 dismantles the supporting structure (3) and formwork (1) one by one to complete the square cap pouring; The rotating assembly (5) includes a mounting part (51), a rotating shaft (52), a telescopic component (53), and a fixing component (54). The mounting part (51) is located on one side of the support plate (31), and the adjacent support plate (31) has a mounting groove (32) for the mounting part (51) to be inserted into. The mounting part (51) has telescopic grooves (511) at both ends, and the rotating shaft (52) is movably installed in the telescopic groove (511). The inner wall of the mounting groove (32) has a rotating groove (33) for the rotating shaft (52) to be inserted into. The telescopic component (53) is used to drive the rotating shaft (52) to be inserted into the rotating groove (33), and the fixing component (54) is used to fix the rotating shaft (52) to the inner wall of the rotating groove (33). The telescopic component (53) includes a rotating rod (531) and a rotating part (536). The mounting part (51) has a movable groove (512), and the two ends of the movable groove (512) are respectively connected to two telescopic grooves (511). The rotating rod (531) is rotatably installed in the movable groove (512). The rotating rod (531) is provided with a first threaded part (532) and a second threaded part (533). The threads of the first threaded part (532) and the second threaded part (533) are opposite in direction. The two rotating shafts (52) are rotatably connected to the first threaded part (532) and the second threaded part (533) respectively. The rotating part (536) is used to drive the rotating rod (531) to rotate. The fixing member (54) includes a first gear, which is mounted on the side of the rotating shaft (52) away from the mounting part (51), and the rotating groove (33) has a first tooth groove (34) for the first gear to be inserted. The bottom of the support plate (31) is provided with an ejection groove (35) that communicates with the first tooth groove (34). An ejection block (36) is slidably installed in the ejection groove (35). A first spring (39) is provided on the inner wall of the ejection block (36) and the ejection groove (35). The elastic force of the first spring (39) is used to drive the ejection block (36) to partially pass through the first tooth groove (34). The support template (1) is provided with a connecting groove for the ejection block (36) to be inserted.

2. The casting method for a square cap at the top according to claim 1, characterized in that: The rotating part (536) includes a first bevel gear (537), a second bevel gear (538), and an unlocking rod (539). The first bevel gear (537) is fixed to the rotating rod (531). The support plate (31) has an unlocking hole (514) that communicates with the movable groove (512). The unlocking rod (539) is rotatably installed in the unlocking hole (514). The second bevel gear (538) is fixed to the unlocking rod (539). The first bevel gear (537) and the second bevel gear (538) mesh with each other. The support plate (31) is provided with a positioning component (6) for fixing the unlocking rod (539) to the support plate (31).

3. The casting method for a square cap at the top according to claim 2, characterized in that: The outer diameter of the second bevel gear (538) is larger than the outer diameter of the first bevel gear (537).

4. The casting method for a square cap at the top according to claim 2, characterized in that: The positioning component (6) includes a second gear (61), a sleeve (62), and a second spring (63). The sleeve (62) is movably mounted on the unlocking rod (539). The second gear (61) is fixed to the sleeve (62), and the second spring (63) is installed inside the sleeve (62). The support plate (31) has a second tooth groove (515). The elastic force of the second spring (63) drives the second gear (61) to insert into the second tooth groove (515).

5. The casting method for a square cap at the top according to claim 1, characterized in that: The support template (1) has an insertion slot (15) for inserting the support corner (4). The inner wall of the insertion slot (15) has a first snap-fit ​​slot (16). A snap-fit ​​block (43) is movably installed in the first snap-fit ​​slot (16). A third spring (44) is provided between the snap-fit ​​block (43) and the inner wall of the first snap-fit ​​slot (16). The third spring (44) is kept in a compressed state. The support corner (4) has a second snap-fit ​​slot (42) for inserting the snap-fit ​​block (43).

6. The casting method for a square cap at the top according to claim 1, characterized in that: The fixing component (2) includes a screw rod. One end of the support template (1) is provided with a fixing groove (12) for adjacent support templates (1) to be inserted. The inner wall of the fixing groove (12) is provided with a threaded hole (13). The other end of the support template (1) is provided with multiple threaded grooves (14). When an adjacent support template (1) is inserted into the fixing groove (12), the screw rod cooperates with the threaded hole (13) and the first threaded groove (14).

Images