Template system for temporary construction hole plugging and pouring and construction method

Abstract

The invention provides a formwork system for temporary construction hole plugging pouring and a construction method, and relates to the technical field of hole plugging construction. A formwork system for temporary construction hole plugging and pouring comprises an embedded screw, a steel bottom die, a connecting nut and a sealing plate. The embedded screw is used for being embedded in a floor slab. The embedded screw penetrates through the steel bottom die, the steel bottom die abuts against the bottom side of the floor slab, and the steel bottom die is used for blocking a reserved hole of the floor slab; the connecting nut is in threaded connection with the embedded screw rod, and the connecting nut abuts against the steel bottom die; the sealing plates are connected with the steel bottom die, the number of the sealing plates is multiple, and the sealing plates abut against the inner wall of the reserved hole. According to the construction method, plugging construction can be conveniently conducted on the reserved hole, and the slurry leakage situation occurring when concrete is poured into the reserved hole is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hole plugging construction, and in particular to a formwork system and a construction method for temporary hole plugging and pouring. Background Art

[0002] During the construction process, it is often necessary to reserve holes in the floor slabs of certain areas of each floor for wire positioning, material delivery, and crane placement. As temporary construction holes, they need to be sealed separately after the structural construction phase. However, at this time, the formwork system used in the original overall structural construction has been dismantled, and it is necessary to re-erect the formwork rack to assist in pouring concrete in the reserved holes.

[0003] The current traditional practice is to re-build a steel pipe support formwork frame system at the reserved hole. However, the general construction project has entered the decoration stage at this time, so such a formwork system has the disadvantages of complex installation steps, large space occupation and obstruction of other construction processes. In addition, the formwork system in the related art has poor sealing after blocking the reserved hole, and is prone to leakage when pouring concrete into the reserved hole. Therefore, the formwork system in the related art needs to be improved. Summary of the invention

[0004] In order to facilitate the sealing construction of the reserved opening and reduce the leakage when pouring concrete into the reserved opening, the present application provides a template system and a construction method for temporary construction opening sealing and pouring.

[0005] In the first aspect, the present application provides a formwork system for temporary construction opening plugging and pouring, which adopts the following technical solution: A formwork system for temporary construction hole plugging and pouring, comprising: Pre-embedded screw rods, the pre-embedded screw rods are used to be pre-embedded in the floor slab; A steel bottom mold, through which the embedded screw rod passes, the steel bottom mold abuts against the bottom side of the floor slab, and the steel bottom mold is used to block the reserved hole of the floor slab; A connecting nut, the connecting nut being threadedly connected to the embedded screw rod, the connecting nut being pressed against the steel bottom mold; A sealing plate is connected to the steel bottom mold, a plurality of sealing plates are provided, and the sealing plate abuts against the inner wall of the reserved hole.

[0006] By adopting the above technical solution, the embedded screw rods and the connecting nuts can firmly fix the steel bottom formwork on the bottom side of the floor slab, thereby providing a stable support structure for blocking the reserved opening. Multiple sealing plates abut against the inner wall of the reserved opening, thereby extending the penetration path, effectively improving the sealing between the inner wall of the reserved opening and the steel bottom formwork, and reducing the occurrence of slurry leakage when pouring concrete.

[0007] Optionally, a tensioning assembly is provided on the steel bottom mold, and the sealing plate is slidably connected to the steel bottom mold; the tensioning assembly is used to tighten the sealing plate so that the sealing plate is pressed against the inner wall of the reserved hole.

[0008] By adopting the above technical solution, the sealing plate slides on the steel bottom mold and can adapt to the reserved holes of different sizes, thus improving the applicability of the formwork system. The tensioning assembly makes the sealing plate press against the inner wall of the reserved hole, improving the sealing between the sealing plate and the inner wall of the reserved hole, and reducing the occurrence of slurry leakage.

[0009] Optionally, the sealing plate includes a support plate, a sliding block and a top side sealing strip; the sliding block is connected to the support plate, the steel bottom mold is provided with a sliding groove, and the sliding block is slidably connected to the sliding groove; the top side sealing strip is connected to the support plate, the top side sealing strip abuts against the top side of the steel bottom mold, and the top side sealing strip blocks the sliding groove.

[0010] By adopting the above technical solution, the support plate is connected to the sliding block, and the sliding block is slidably connected to the sliding groove, so that the sealing plate can slide relative to the steel bottom mold, thereby adapting to reserved openings of different sizes and improving the applicability of the formwork system. The top side blocking plate blocks the sliding groove, reducing the situation where slurry enters the sliding groove when pouring concrete, and improving the sealing performance of the formwork system.

[0011] Optionally, the tightening assembly includes a tightening screw and a tightening nut, the tightening screw is connected to the sliding block, and the tightening screw is inserted into the steel bottom mold; the tightening nut is threadedly connected to the tightening screw, and the tightening nut is pressed against the side wall of the steel bottom mold.

[0012] By adopting the above technical solution, the tightening screw is connected to the sliding block, and the tightening nut is rotated to generate tension on the tightening screw, thereby driving the sliding block to move, and finally achieving a tight fit between the sealing plate and the inner wall of the reserved hole. This design is not only easy to operate, but also can adapt to reserved holes of different sizes, improving the applicability and construction efficiency of the formwork system.

[0013] Optionally, the sealing plate further includes a sealing pad, which is connected to the support plate, abuts against the top side of the steel bottom mold, and is used to abut against the inner wall of the reserved hole.

[0014] By adopting the above technical solution, the sealing pad is connected to the support plate and abuts against the inner wall of the reserved hole, and the sealing pad can be deformed to a certain extent, so as to better fit the inner wall of the reserved hole, thereby enhancing the sealing performance between the sealing plate and the inner wall of the reserved hole, and further reducing the occurrence of slurry leakage. In addition, the sealing pad abuts against the top side of the steel bottom mold, which can reduce the penetration of slurry from between the sealing pad and the top side of the steel bottom mold when pouring concrete.

[0015] Optionally, a corner sealing mechanism is provided on the steel bottom mold, and the corner sealing mechanism includes a corner plate and a locking assembly; the corner plate is slidably connected to the steel bottom mold, and the corner plate is located on the inner side of the corner of two adjacent sealing plates, and the corner plate is used to abut against the two adjacent sealing plates; a glue injection groove is formed between the corner plate and the inner wall of the reserved hole, and glue is injected into the glue injection groove to form a sealing block; the locking assembly is used to lock the position of the corner plate.

[0016] By adopting the above technical solution, the corner plate is abutted against the two adjacent sealing plates, so that a glue injection groove is formed between the corner plate and the inner wall of the reserved hole. By injecting sealant into the glue injection groove, the leakage at the corner of the reserved hole can be reduced, and the sealing performance of the overall formwork system can be improved. In addition, the volume of the glue injection groove is not large, and the injected sealant can solidify quickly, thereby reducing the impact on construction efficiency. The use of the locking component ensures that the position of the corner plate is fixed, reducing displacement during the pouring process, thereby further ensuring the reliability of the sealing effect.

[0017] Optionally, the corner plate includes a corner abutment plate, a corner sealing strip and a corner sliding block; the corner sliding block is connected to the corner abutment plate, the steel bottom mold is provided with a movable groove, the corner sliding block is slidably connected to the movable groove, and the corner abutment plate abuts against two adjacent sealing plates; the corner sealing strip is connected to the corner abutment plate, the corner sealing strip abuts against the top side of the steel bottom mold, and the corner sealing strip blocks the movable groove.

[0018] By adopting the above technical solution, the corner sliding block slides in the moving groove, so that the corner plate can slide relative to the steel bottom mold, so that the corner plate can adapt to the position of two adjacent sealing plates. The corner sealing strip blocks the moving groove, which can reduce the situation where slurry and sealant enter the moving groove.

[0019] Optionally, the locking assembly includes a corner tightening screw and a corner tightening nut, the corner tightening screw is connected to the corner sliding block, the corner tightening screw is passed through the steel bottom mold, and the corner tightening screw slides along the movable groove; the corner tightening nut is threadedly connected to the corner tightening screw, and the corner tightening nut abuts against the steel bottom mold.

[0020] By adopting the above technical solution, the corner tightening screw is connected to the corner sliding block, and the corner tightening screw passes through the steel bottom mold and is threadedly connected to the corner tightening nut. The position of the corner abutment plate can be fixed by adjusting the corner tightening nut, so that the corner abutment plate is respectively abutted against the two adjacent sealing plates, which is conducive to forming a glue injection groove and facilitating the sealing of the reserved hole corner.

[0021] Optionally, a chamfer is provided at a corner of the steel bottom mold, and the corner tightening nut abuts against the chamfer.

[0022] By adopting the above technical solution, the chamfer can provide support for the corner tightening nut, thereby facilitating the locking assembly to lock the position of the corner plate.

[0023] In a second aspect, the present application also provides a construction method of a formwork system for temporary construction hole plugging and pouring, using the above-mentioned formwork system for temporary construction hole plugging and pouring, comprising the following steps: S1: First, the steel bars in the floor slab are weaved into a steel mesh in the reserved opening by planting or extending the steel bars; S2: Use the steel bottom form to block the reserved hole, so that the embedded screw passes through the steel bottom form, and tighten the connecting nut so that the steel bottom form is close to the bottom side of the floor slab; S3: Tightening the tightening nut so that the tightening nut is pressed against the side wall of the steel bottom mold, and the tightening nut drives the sliding block to slide through the tightening screw so that the sealing plate is pressed against the inner wall of the reserved hole; S4: Tightening the corner tightening nut so that the corner tightening nut is pressed against the chamfer of the steel bottom mold, and the corner tightening nut drives the corner sliding block to slide through the corner tightening screw, so that the corner plate is respectively pressed against two adjacent sealing plates; S5: applying a release agent on the top side of the steel bottom mold, the inner side of the sealing plate, and the inner and outer sides of the corner plate; S6: injecting sealant between the corner plate and the inner wall of the reserved hole, and waiting for the sealant to solidify to form a sealing block; S7: pouring concrete into the reserved opening, and then completing the curing work.

[0024] In summary, the present application includes at least one of the following beneficial effects: 1. The embedded screws pass through the steel bottom formwork and are fastened with connecting nuts, so that the steel bottom formwork can be quickly installed and firmly fixed on the bottom side of the floor slab, and the reserved openings can be blocked, thereby simplifying the construction process, reducing construction time, and reducing spatial obstacles to other processes; 2. The sealing plate can slide relative to the steel bottom formwork, and the tightening assembly makes the sealing plate fit tightly against the inner wall of the reserved hole, which can adapt to reserved holes of different sizes, effectively improve the overall sealing performance, and reduce the possibility of leakage between the inner wall of the reserved hole and the steel bottom formwork during concrete pouring; 3. The corner abutment plate abuts against the adjacent sealing plate to form a glue injection groove at the corner. By injecting sealant into the glue injection groove, the sealing performance at the corner of the reserved hole can be further enhanced, the risk of leakage at the corner of the reserved hole can be reduced, and the casting quality can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the template system of Example 1 of the present application; Figure 2 It is a schematic diagram of the cross-sectional structure of the template system for blocking the reserved hole in Example 1 of the present application; Figure 3 It is a schematic diagram of the structure of the template system for blocking the reserved hole in Example 1 of the present application from a bottom up view; Figure 4 It is a schematic diagram of the overall structure of the template system of Example 2 of the present application; Figure 5 It is a schematic diagram of the cross-sectional structure of the template system for blocking the reserved hole in Example 2 of the present application; Figure 6 It is a schematic diagram of the overall structure of the template system of Example 3 of the present application; Figure 7 It is a schematic diagram of the partial cross-section structure of the tensioning assembly, the sealing plate and the steel bottom mold in Example 3 of the present application; Figure 8 It is a schematic diagram of the overall structure of the template system of Example 4 of the present application; Fig. 9 It is a schematic diagram of the partial cross-section structure of the corner sealing mechanism and the steel bottom mold in Example 4 of the present application.

[0026] Explanation of the reference numerals: 1. Steel bottom mold; 11. Sliding groove; 12. Moving groove; 13. Chamfer; 2. Embedded screw; 3. Connecting nut; 4. Sealing plate; 41. Support plate; 42. Sealing pad; 43. Top side sealing strip; 44. Sliding block; 5. Tensioning assembly; 51. Tensioning screw; 52. Tensioning nut; 6. Corner sealing mechanism; 61. Corner plate; 611. Corner abutment plate; 612. Corner sealing strip; 613. Corner sliding block; 62. Locking assembly; 621. Corner tensioning screw; 622. Corner tensioning nut; 100. Floor slab; 101. Reserved opening. DETAILED DESCRIPTION

[0027] The following combination Figures 1 to 9 This application is described in further detail.

[0028] Embodiment 1: Example 1 of the present application provides a formwork system for temporary construction hole sealing and pouring.

[0029] refer to Figure 1 and Figure 2 The formwork system for temporary construction hole plugging and pouring includes a steel bottom form 1, an embedded screw 2 and a connecting nut 3. One end of the embedded screw 2 is pre-embedded in the floor slab 100, and the other end of the embedded screw 2 extends from the bottom side of the floor slab 101. There are multiple embedded screws 2, and the multiple embedded screws 2 are arranged around the side of the reserved hole 101. The steel bottom form 1 is a rectangular plate, and the steel bottom form 1 is provided with multiple holes, and the multiple holes of the steel bottom form 1 correspond to the multiple embedded screws 2 one by one.

[0030] refer to Figure 2 and Figure 3 , insert the embedded screw 2 into the hole of the steel bottom form 1, and then make the steel bottom form 1 abut against the bottom side of the floor slab 100. Then, thread the connecting nut 3 with the embedded screw 2, tighten the connecting nut 3, so that the connecting nut 3 abuts against the steel bottom form 1, so that the steel bottom form 1 abuts against the bottom side of the floor slab 100, so that the steel bottom form 1 blocks the reserved hole 101.

[0031] The implementation principle of a formwork system for temporary construction hole plugging and pouring in Example 1 of the present application is as follows: embedded screws 2 are pre-buried in the floor slab 100 around the reserved hole 101. When the reserved hole 101 needs to be plugged, the steel bars in the floor slab 100 are first woven into a steel mesh in the reserved hole 101 by embedding or extending the bars, and then the steel bottom formwork 1 is inserted into the embedded screws 2, and the connecting nuts 3 are tightened so that the steel bottom formwork 1 is in contact with the bottom side of the floor slab 100, and the steel bottom formwork 1 plugs the reserved hole 101.

[0032] Embodiment 2: Embodiment 2 of the present application provides a formwork system for temporary construction hole plugging and pouring. The difference between Embodiment 2 of the present application and Embodiment 1 is that: refer to Figure 4 and Figure 5 The sealing plate 4 is fixedly connected to the top side of the steel bottom form 1, and the sealing plate 4 is located in the reserved opening 101. Four sealing plates 4 are provided, and adjacent sealing plates 4 are fixedly connected to each other. The four sealing plates 4 are respectively abutted against the four inner walls of the reserved opening 101, which extends the penetration path and improves the sealing between the sealing plate 4 and the inner wall of the reserved opening 101, thereby reducing the leakage between the steel bottom form 1 and the floor slab 100 when pouring concrete.

[0033] Embodiment 3: Embodiment 3 of the present application provides a formwork system for temporary construction hole plugging and pouring. The difference between Embodiment 3 of the present application and Embodiment 2 is that: refer to Figure 6 and Figure 7 The sealing plate 4 includes a support plate 41, a sealing pad 42, a top side blocking strip 43 and a sliding block 44. The steel bottom mold 1 is provided with a sliding groove 11, and the sliding block 44 is slidably connected to the sliding groove 11. The sliding block 44 can slide along the sliding groove 11, and the sliding block 44 is located in the sliding groove 11. The sliding block 44 is fixedly connected to the support plate 41, so that the sealing plate 4 can slide relative to the steel bottom mold 1, and the sliding direction of the sealing plate 4 is the direction close to or away from the inner wall of the reserved hole 101, so that it can adapt to the reserved holes 101 of different sizes.

[0034] refer to Figure 6 and Figure 7 The top side blocking strip 43 is fixedly connected to the support plate 41 , and the top side blocking strip 43 abuts against the top side of the steel bottom mold 1 . The top side blocking strip 43 blocks the top side of the sliding groove 11 , which can reduce the situation where slurry enters the sliding groove 11 when pouring concrete.

[0035] refer to Figure 6 and Figure 7 The sealing pad 42 is fixedly connected to the support plate 41, and the sealing pad 42 abuts against the top side of the steel bottom mold 1. The sealing pad 42 is located on the side of the support plate 41 close to the inner wall of the reserved hole 101. When the sealing plate 4 is close to the inner wall of the reserved hole 101, the sealing pad 42 can abut against the inner wall of the reserved hole 101. The sealing pad 42 has a certain elasticity, so that the sealing pad 42 better fits the inner wall of the reserved hole 101, thereby improving the sealing between the sealing plate 4 and the inner wall of the reserved hole 101.

[0036] refer to Figure 6 and Figure 7 The tensioning assembly 5 includes a tensioning screw 51 and a tensioning nut 52. The tensioning screw 51 is inserted into the steel bottom mold 1 and can slide relative to the steel bottom mold 1. One end of the tensioning screw 51 is fixedly connected to the sliding block 44, and the other end of the tensioning screw 51 passes through the side wall of the steel bottom mold 1. The tensioning nut 52 is threadedly connected to the tensioning screw 51. When the tensioning nut 52 is tightened, the tensioning nut 52 presses against the side wall of the steel bottom mold 1, thereby pulling the support plate 41 toward the inner wall of the reserved hole 101 through the sliding block 44, so that the sealing pad 42 fits more closely with the inner wall of the reserved hole 101, further improving the sealing performance.

[0037] refer to Figure 6 and Figure 7In the present embodiment, a plurality of tensioning assemblies 5 are provided, and two tensioning assemblies 5 correspond to one sealing plate 4, so that the four sealing plates 4 can be respectively in close contact with the four inner walls of the reserved opening 101. On the one hand, it can adapt to the reserved openings 101 of different sizes, and on the other hand, it improves the sealing between the sealing plate 4 and the inner wall of the reserved opening 101, thereby reducing the leakage of slurry between the steel bottom form 1 and the floor slab 100.

[0038] Embodiment 4: Embodiment 4 of the present application provides a formwork system for temporary construction hole plugging and pouring. The difference between Embodiment 4 of the present application and Embodiment 3 is that: refer to Figure 8 and Fig. 9 A corner sealing mechanism 6 is provided on the steel bottom mold 1 , and four corner sealing mechanisms 6 are provided. The four corner sealing mechanisms 6 correspond to the four corners of the reserved opening 101 one by one.

[0039] refer to Figure 8 and Fig. 9 The corner sealing mechanism 6 includes a corner plate 61 and a locking assembly 62. The corner plate 61 includes a corner abutment plate 611, a corner sealing strip 612 and a corner sliding block 613. The locking assembly 62 includes a corner tightening screw 621 and a corner tightening nut 622. The steel bottom mold 1 is provided with a moving groove 12, and one moving groove 12 is parallel to one of the diagonals of the steel bottom mold 1. The corner sliding block 613 is located in the moving groove 12, the corner sliding block 613 is slidably connected to the moving groove 12, and the corner abutment plate 611 is fixedly connected to the corner sliding block 613, so that the corner plate 61 can slide relative to the steel bottom mold 1. The corner tightening screw 621 is penetrated in the steel bottom mold 1, and the corner tightening screw 621 can slide relative to the steel bottom mold 1. One end of the corner tightening screw 621 is fixedly connected to the corner sliding block 613, and the other end of the corner tightening screw 621 passes through the steel bottom mold 1.

[0040] refer to Figure 8 and Fig. 9 The four corners of the steel bottom mold 1 are provided with chamfers 13, and the corner tightening nuts 622 are threadedly connected with the corner tightening screws 621, and the corner tightening nuts 622 abut against the chamfers 13. A corner abutting plate 611 corresponds to two corner sealing strips 612, respectively, and the two corner sealing strips 612 are fixedly connected to the two sides of the corner abutting plate 611, respectively, and the corner sealing strips 612 abut against the top side of the steel bottom mold 1, and the corner sealing strips 612 block the top side of the moving groove 12.

[0041] refer to Figure 8 and Fig. 9, turn the corner tightening nut 622 to make the corner tightening screw 621 slide along the moving groove 12, so that the corner abutment plate 611 moves and abuts against the two adjacent sealing plates 4 respectively, and then tighten the corner tightening nut 622 to make the corner tightening nut 622 abut against the chamfer 13 of the steel bottom mold 1, thereby locking the position of the corner plate 61.

[0042] refer to Figure 8 and Fig. 9 After the corner abutment plate 611 abuts against two adjacent sealing plates 4, a glue injection groove is formed between the corner abutment plate 611 and the inner wall of the reserved hole 101, and sealant is injected into the glue injection groove. After the sealant solidifies, a sealing block is formed, thereby improving the sealing between the four corners of the reserved hole 101 and the steel bottom mold 1. The corner sealing strip 612 on the outside of the corner abutment plate 611 can prevent the sealant from entering the moving groove 12, and the corner sealing strip 612 on the inside of the corner abutment plate 611 can prevent concrete and slurry from entering the moving groove 12.

[0043] Embodiment 4 of the present application further provides a construction method of a template system for temporary construction hole plugging and pouring, using the template system for temporary construction hole plugging and pouring of this embodiment, comprising the following steps: S1: First, the steel bars in the floor slab 100 are woven into a steel mesh in the reserved opening 101 by planting or extending the steel bars; S2: Use the steel bottom form 1 to block the reserved hole 101, so that the embedded screw 2 passes through the steel bottom form 1, and tighten the connecting nut 3 so that the steel bottom form 1 is close to the bottom side of the floor slab 100; S3: Tighten the tightening nut 52 so that the tightening nut 52 is pressed against the side wall of the steel bottom mold 1. The tightening nut 52 drives the sliding block 44 to slide through the tightening screw 51, so that the sealing plate 4 is pressed against the inner wall of the reserved hole 101; S4: Tighten the corner tightening nut 622 so that the corner tightening nut 622 abuts against the chamfer 13 of the steel bottom mold 1, and the corner tightening nut 622 drives the corner sliding block 613 to slide through the corner tightening screw 621, so that the corner plate 61 abuts against two adjacent sealing plates 4 respectively; S5: Apply a release agent on the top side of the steel bottom mold 1, the inner side of the sealing plate 4, and the inner and outer sides of the corner plate 61 to facilitate later demoulding; S6: injecting sealant between the corner plate 61 and the inner wall of the reserved hole 101, and waiting for the sealant to solidify to form a sealing block; S7: pouring concrete into the reserved opening 101, and then completing the curing work; S8: The steel bottom formwork 1 is dismantled, and the embedded screws 2 exposed on the bottom side of the floor slab 100 are cut off. Due to the presence of the sealing plate 4 and the corner abutment plate 611, a corresponding groove is formed on the bottom side of the solidified concrete in the reserved opening 101, and the groove is filled with concrete, so that the bottom side of the floor slab 100 is smoother.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A formwork system for temporary construction hole plugging and pouring, characterized in that: include: A pre-embedded screw rod (2), wherein the pre-embedded screw rod (2) is used to be pre-embedded in the floor slab (100); A steel bottom mold (1), the embedded screw rod (2) passing through the steel bottom mold (1), the steel bottom mold (1) abutting against the bottom side of the floor slab (100), and the steel bottom mold (1) being used to block the reserved hole (101) of the floor slab (100); A connecting nut (3), wherein the connecting nut (3) is threadedly connected to the embedded screw rod (2), and the connecting nut (3) is pressed against the steel bottom mold (1); A sealing plate (4), the sealing plate (4) being connected to the steel bottom mold (1), a plurality of sealing plates (4) being provided, and the sealing plate (4) being in contact with the inner wall of the reserved hole (101).

2. A formwork system for temporary construction hole plugging and pouring according to claim 1, characterized in that: A tensioning assembly (5) is provided on the steel bottom mold (1), and the sealing plate (4) is slidably connected to the steel bottom mold (1); the tensioning assembly (5) is used to tension the sealing plate (4) so ​​that the sealing plate (4) is pressed against the inner wall of the reserved hole (101).

3. A formwork system for temporary construction hole plugging and pouring according to claim 2, characterized in that: The sealing plate (4) comprises a supporting plate (41), a sliding block (44) and a top side sealing strip (43); the sliding block (44) is connected to the supporting plate (41), the steel bottom mold (1) is provided with a sliding groove (11), and the sliding block (44) is slidably connected to the sliding groove (11); the top side sealing strip (43) is connected to the supporting plate (41), the top side sealing strip (43) abuts against the top side of the steel bottom mold (1), and the top side sealing strip (43) blocks the sliding groove (11).

4. A formwork system for temporary construction hole plugging and pouring according to claim 3, characterized in that: The tightening assembly (5) comprises a tightening screw (51) and a tightening nut (52); the tightening screw (51) is connected to the sliding block (44), and the tightening screw (51) is inserted into the steel bottom mold (1); the tightening nut (52) is threadedly connected to the tightening screw (51), and the tightening nut (52) is pressed against the side wall of the steel bottom mold (1).

5. A formwork system for temporary construction hole plugging and pouring according to claim 4, characterized in that: The sealing plate (4) further comprises a sealing pad (42), wherein the sealing pad (42) is connected to the support plate (41), the sealing pad (42) abuts against the top side of the steel bottom mold (1), and the sealing pad (42) is used to abut against the inner wall of the reserved hole (101).

6. A formwork system for temporary construction hole plugging and pouring according to claim 5, characterized in that: The steel bottom mold (1) is provided with a corner sealing mechanism (6), and the corner sealing mechanism (6) comprises a corner plate (61) and a locking assembly (62); the corner plate (61) is slidably connected to the steel bottom mold (1), the corner plate (61) is located at the inner side of the corner of two adjacent sealing plates (4), and the corner plate (61) is used to abut against the two adjacent sealing plates (4); a glue injection groove is formed between the corner plate (61) and the inner wall of the reserved hole (101), and glue is injected into the glue injection groove to form a sealing block; the locking assembly (62) is used to lock the position of the corner plate (61).

7. A formwork system for temporary construction hole plugging and pouring according to claim 6, characterized in that: The corner plate (61) comprises a corner abutment plate (611), a corner sealing strip (612) and a corner sliding block (613); the corner sliding block (613) is connected to the corner abutment plate (611), the steel bottom mold (1) is provided with a movable groove (12), the corner sliding block (613) is slidably connected to the movable groove (12), and the corner abutment plate (611) abuts against two adjacent sealing plates (4); the corner sealing strip (612) is connected to the corner abutment plate (611), the corner sealing strip (612) abuts against the top side of the steel bottom mold (1), and the corner sealing strip (612) blocks the movable groove (12).

8. A formwork system for temporary construction hole plugging and pouring according to claim 7, characterized in that: The locking assembly (62) comprises a corner tightening screw (621) and a corner tightening nut (622); the corner tightening screw (621) is connected to the corner sliding block (613); the corner tightening screw (621) is inserted into the steel bottom mold (1); the corner tightening screw (621) slides along the movable groove (12); the corner tightening nut (622) is threadedly connected to the corner tightening screw (621); the corner tightening nut (622) abuts against the steel bottom mold (1).

9. A formwork system for temporary construction hole plugging and pouring according to claim 8, characterized in that: A chamfer (13) is provided at a corner of the steel bottom mold (1), and the corner tightening nut (622) abuts against the chamfer (13).

10. A construction method for a formwork system for temporary construction hole plugging and pouring, characterized in that: Using the formwork system for temporary construction hole plugging and pouring as claimed in claim 9 comprises the following steps: S1: First, the steel bars in the floor slab (100) are woven into a steel mesh in the reserved opening (101) by planting or extending the steel bars; S2: Using the steel bottom form (1) to seal the reserved hole (101), allowing the embedded screw (2) to pass through the steel bottom form (1), and tightening the connecting nut (3) so that the steel bottom form (1) is in close contact with the bottom side of the floor slab (100); S3: Tightening the tightening nut (52) so that the tightening nut (52) is pressed against the side wall of the steel bottom mold (1), and the tightening nut (52) drives the sliding block (44) to slide through the tightening screw (51), so that the sealing plate (4) is pressed against the inner wall of the reserved hole (101); S4: Tightening the corner tightening nut (622) so that the corner tightening nut (622) is pressed against the chamfer (13) of the steel bottom mold (1), and the corner tightening nut (622) drives the corner sliding block (613) to slide via the corner tightening screw (621), so that the corner plate (61) is respectively pressed against two adjacent sealing plates (4); S5: applying a release agent on the top side of the steel bottom mold (1), the inner side of the sealing plate (4), and the inner and outer sides of the corner plate (61); S6: injecting sealant between the corner plate (61) and the inner wall of the reserved hole (101), and waiting for the sealant to solidify to form a sealing block; S7: pouring concrete into the reserved hole (101), and then completing the curing work; S8: The steel bottom formwork (1) is dismantled, and the embedded screws (2) exposed on the bottom side of the floor slab (100) are cut off; due to the presence of the sealing plate (4) and the corner abutment plate (611), a corresponding groove is formed on the bottom side of the solidified concrete in the reserved opening (101), and the concrete is filled into the groove.

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