An arc-shaped hanging mold tool for prefabricated composite plate post-cast strip

Abstract

The application discloses a bow-shaped hanging mold tool for prefabricated composite plate post-cast strip, and relates to the technical field of building engineering. The application discloses a bow-shaped hanging mold tool for prefabricated composite plate post-cast strip, and relates to the technical field of building engineering. The application has the effect of improving the flatness of the floor after pouring and forming.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to an arc-shaped lifting formwork tool for post-cast strips of precast composite slabs. Background Technology

[0002] In precast monolithic concrete structures, precast composite floor slabs are generally used. Based on the principles of precast component disassembly, to meet the stress requirements of horizontal components, and to ensure the integrity of the floor slab, a post-cast strip is typically placed between adjacent precast composite floor slabs. This post-cast strip is poured simultaneously with the cast-in-place portion of the floor slab. The post-cast strip aims to prevent harmful cracks that may arise in the reinforced concrete structure due to uneven shrinkage or settlement.

[0003] There are many construction methods for post-cast strips, the most common of which is to use multiple steel pipes to support wooden formwork. When constructing the post-cast strip, firstly, the steel pipes on both sides of the strip are removed and debris is cleared. Next, the steel pipes at the strip are derusted, shaped, tied, and welded. Then, the wooden formwork is erected. Finally, the supervisor inspects and accepts the work before pouring concrete.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When using steel pipes to support wooden formwork, if the supporting force of the steel pipes is too small, grout leakage is likely to occur at the joint between the wooden formwork and the precast composite floor slab during the concrete pouring process, resulting in unevenness at the joint between the post-pouring strip and the precast composite floor slab; when the supporting force of the steel pipes is too large, it is difficult to adjust the supporting force of multiple steel pipes on the wooden formwork to be consistent, causing the precast composite floor slabs on both sides of the post-pouring strip to be lifted to different heights under the support of the wooden formwork, resulting in poor flatness of the floor slab after pouring. Summary of the Invention

[0005] To improve the problem of poor flatness of the floor slab after casting, this application provides an arched lifting formwork tool for the post-cast strip of precast composite slabs.

[0006] The bow-shaped lifting formwork tool for post-cast strips of precast composite slabs provided in this application adopts the following technical solution: An arched formwork tool for post-cast strips of precast composite slabs includes a lower formwork located between two adjacent floor slabs and abutting against the bottom of both floor slabs. A through-wall rod is provided on the lower formwork between the two adjacent floor slabs. An upper formwork is provided on the through-wall rod and abutting against the top of both floor slabs. A clamping device is also provided on the through-wall rod for driving the lower formwork and the upper formwork to abut against the sides of the floor slabs respectively.

[0007] By adopting the above technical solution, when setting up the formwork for the post-pouring strip, the through-wall rod is first installed on the lower formwork, then the lower formwork is placed at the bottom of the floor slab, and then the upper formwork is installed on the through-wall rod, placing the upper formwork on top of the floor slab. Finally, the clamping device is activated, which drives the upper formwork to clamp against the top of the floor slab and the lower formwork to clamp against the bottom of the floor slab. Since the through-wall rod is located between the two floor slabs, and the lower formwork is tightly pressed against the bottom of the floor slab by the combined action of the upper formwork, the through-wall rod, and the clamping device, on the one hand, leakage of slurry from the post-pouring strip from the joint between the lower formwork and the floor slab is minimized, effectively ensuring the flatness of the floor slab after pouring; on the other hand, the upper formwork abuts against the top of the floor slabs on both sides of the post-pouring strip, and the lower formwork abuts against the bottom of the floor slabs on both sides of the post-pouring strip, so that the two floor slabs located between the upper and lower formworks are lifted to the same height by the lower formwork, further ensuring the flatness of the floor slab after pouring.

[0008] Optionally, the through-wall rod is provided with external threads, and the clamping device includes a clamping component that abuts against the side of the lower template away from the upper template and a first nut that is threaded onto the through-wall rod. The first nut abuts against the side of the upper template away from the clamping component.

[0009] By adopting the above technical solution, the clamping component is first set to abut against the lower template, and then the first nut is rotated. Driven by the external thread of the through-wall rod, the first nut moves towards the upper template and abuts against the side of the upper template away from the clamping component. At this time, the upper template and the lower template are stably abutted against the two sides of the floor slab under the combined action of the clamping component, the first nut and the through-wall rod, so as to achieve the purpose of quickly setting up the template.

[0010] Optionally, the clamping assembly includes a U-shaped clip sleeved on the through-wall rod, a clamping tube abutting between the U-shaped clip and the lower template, and a second nut threaded on the through-wall rod, wherein the second nut abuts against the side of the U-shaped clip away from the clamping tube.

[0011] By adopting the above technical solution, when it is necessary to drive the clamping component to abut against the lower formwork, firstly, the U-shaped clip is fitted onto the through-wall rod, and then the clamping tube is placed on the side of the U-shaped clip closest to the lower formwork. The U-shaped clip can support the clamping tube. Then, the second nut is rotated. Driven by the external thread of the through-wall rod, the second nut pushes the U-shaped clip and the clamping tube towards the lower formwork, so that the clamping tube abuts against the lower formwork. The setting of the clamping tube increases the contact area between the lower formwork and the second nut, so that the lower formwork is stably abutted against the bottom of the floor slab, minimizing the leakage of slurry from the joint between the lower formwork and the floor slab, and effectively ensuring the flatness of the floor slab after casting.

[0012] Optionally, the through-wall rod includes an upper through-wall bolt passing through the upper template and a lower through-wall bolt passing through the lower template. The threads of the upper through-wall bolt and the lower through-wall bolt have opposite directions. A threaded cylinder is threadedly connected between the upper through-wall bolt and the lower through-wall bolt. The threaded cylinder abuts against the end face of the lower template near the upper template.

[0013] By adopting the above technical solution, the through-wall rod includes an upper through-wall bolt and a lower through-wall bolt, and a threaded cylinder connects the upper and lower through-wall bolts together. This allows the lower through-wall bolt and the threaded cylinder to be recycled after the post-pouring strip construction is completed, achieving energy saving and consumption reduction. The threaded cylinder is set on the end face of the lower formwork near the upper formwork, allowing the lower formwork to stably support the threaded cylinder. One end of the upper through-wall bolt passes through the upper formwork, and the other end is threadedly connected to the threaded cylinder. The combined action of the first nut and the upper through-wall bolt restricts the movement of the upper formwork away from the threaded cylinder. One end of the lower through-wall bolt passes through the lower formwork, and the other end is threadedly connected to the threaded cylinder. The combined action of the lower through-wall bolt and the clamping component restricts the movement of the lower formwork away from the threaded cylinder. When the upper and / or lower formwork is not tightly abutting against the floor slab, simply rotate the threaded cylinder. Since the threads of the upper and lower through-wall bolts turn in opposite directions, the upper and lower through-wall bolts move towards each other under the drive of the threaded cylinder, thereby making the upper and lower formwork tightly abut against the two sides of the floor slab respectively. This minimizes the leakage of slurry from the joint between the lower formwork and the floor slab, effectively ensuring the flatness of the floor slab after casting.

[0014] Optionally, an elastic telescopic rod is coaxially fixed to the end faces of the upper through-wall bolt and the lower through-wall bolt that are close to each other. An end face gear is provided on the elastic telescopic rod. The two end face gears mesh and are properly matched, and the end face gear is movably disposed in the threaded cylinder.

[0015] By adopting the above technical solution, since both end-face gears are elastically connected to the upper and lower through-wall bolts respectively via elastic telescopic rods, when the threaded cylinder is rotated, the threaded cylinder drives the upper and lower through-wall bolts to move closer to each other. At this time, the elastic telescopic rods are compressed, and the two end-face gears elastically abut against each other. On the one hand, the two compressed elastic telescopic rods act on the upper and lower through-wall bolts respectively, causing the upper and lower through-wall bolts to tend to move away from each other. At this time, the upper and lower through-wall bolts are tightly abutted against the internal threads of the threaded cylinder, increasing the friction between the upper / lower through-wall bolts and the threaded cylinder. This allows the upper and lower through-wall bolts to be stably screwed onto the threaded cylinder without external force, effectively ensuring that the upper and lower formwork are stably pressed against both sides of the floor slab, minimizing the leakage of slurry from the joint between the lower formwork and the floor slab, and effectively ensuring the flatness of the floor slab after casting.

[0016] On the other hand, the meshing of the two end gears ensures that the rotation of the upper and lower through-wall bolts is as synchronized as possible. When rotating the threaded cylinder, to avoid the problem of the upper and lower through-wall bolts rotating synchronously with the threaded cylinder as much as possible, it is only necessary to control one of the upper and lower through-wall bolts to not rotate synchronously with the threaded cylinder, which effectively improves the efficiency of formwork erection.

[0017] Optionally, an arc-shaped plate is provided on the end face of the upper template away from the lower template, the upper through-wall bolt passes through the upper template and the arc-shaped plate, and the first nut abuts against the end face of the arc-shaped plate away from the upper template.

[0018] By adopting the above technical solution, under the combined action of the first nut and the through-wall bolt, the two ends of the bow-shaped plate are respectively pressed against the two ends of the upper formwork. On the one hand, this ensures that the upper formwork is subjected to uniform force, minimizing the possibility of indentation at the pressed area due to the first nut directly pressing against the upper formwork. This ensures that both ends of the upper formwork are stably pressed against the floor slabs on both sides of the post-pouring strip, thereby ensuring that the floor slabs on both sides of the post-pouring strip are set at the same height and effectively guaranteeing the flatness of the floor slab after casting. On the other hand, the bow-shaped plate has a certain degree of elasticity, which allows it to buffer the force generated by vibration during the vibration of the poured post-pouring strip, minimizing deformation of the upper formwork due to localized large forces and ensuring a stable fit between the upper formwork and the floor slab.

[0019] Optionally, the through-wall rod is adjustablely provided with a leak-proof component, which is located between the clamping tube and the lower template, and the leak-proof component abuts against the end face of the lower template on the side away from the upper template.

[0020] By adopting the above technical solution, since the through-wall bolts are installed through the lower formwork, the slurry on the lower formwork is prone to dripping from the places where the through-wall bolts are installed. By adjusting the anti-leakage parts on the through-wall rods to be pressed tightly against the lower formwork, the dripping of slurry is effectively prevented, which has the effect of saving energy and reducing consumption.

[0021] Optionally, the lower template is provided with a sealing element at its edge, and the sealing element is located on the end face of the lower template near the upper template.

[0022] By adopting the above technical solution, the sealing element is set at the edge of the lower template. On the one hand, it can effectively prevent the slurry from overflowing and dripping from the joint between the lower template and the floor slab. On the other hand, it can effectively protect the lower template and avoid damage to the edge of the lower template, which would prevent it from being unable to fit tightly against the floor slab.

[0023] Optionally, both the threaded cylinder and the lower template are provided with a release layer.

[0024] By adopting the above technical solution, the demolding layer facilitates the quick removal of the lower formwork and threaded cylinder by construction personnel after the post-pouring strip has cured, thereby enabling the recycling of the lower formwork, threaded cylinder, lower through-wall bolts and clamping components, which has the effect of energy saving and consumption reduction.

[0025] Optionally, the diameter of the end face of the threaded cylinder near the upper template is smaller than the diameter of the end face of the threaded cylinder near the lower template.

[0026] By adopting the above technical solution, when recycling the threaded cylinder, it is necessary to push the threaded cylinder away from the cured post-cast strip in a direction away from the upper mold. Since the end face diameter of the threaded cylinder near the upper mold is smaller than the end face diameter of the threaded cylinder near the lower mold, the threaded cylinder can be detached from the cured post-cast strip better and faster.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. The through-wall rod is located between two floor slabs, and the lower formwork is tightly abutted against the bottom of the floor slab by the combined action of the upper formwork, the through-wall rod, and the clamping device. On the one hand, this minimizes the leakage of slurry from the joint between the lower formwork and the floor slab, effectively ensuring the flatness of the floor slab after casting. On the other hand, the upper formwork abuts against the top of the floor slabs on both sides of the post-cast strip, and the lower formwork abuts against the bottom of the floor slabs on both sides of the post-cast strip, so that the two floor slabs located between the upper and lower formworks are lifted to the same height by the lower formwork, further ensuring the flatness of the floor slab after casting. 2. The through-wall rod includes an upper through-wall bolt and a lower through-wall bolt, and the threaded cylinder connects the upper through-wall bolt and the lower through-wall bolt together, so that the lower through-wall bolt and the threaded cylinder can be recycled after the post-pouring strip construction is completed, which has the effect of energy saving and consumption reduction. 3. The bow-shaped plate has a certain degree of elasticity, which allows it to buffer the force generated by vibration during the vibration of the post-pouring strip after pouring, so as to avoid deformation of the upper formwork due to large local stress and ensure that the upper formwork is stably attached to the floor slab. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the structure of the lower template, upper through-wall bolt, lower through-wall bolt, threaded cylinder, upper template, clamping assembly and bow plate in the embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the upper through-wall bolt, lower through-wall bolt, threaded cylinder, upper template, and leak-proof component in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram of the structure of the upper through-wall bolt, lower through-wall bolt, elastic telescopic rod, and end face gear in the embodiments of this application.

[0032] Reference numerals: 1. Lower template; 2. Through-wall rod; 21. Upper through-wall bolt; 22. Lower through-wall bolt; 23. Threaded cylinder; 3. Upper template; 41. Clamping assembly; 411. Mountain-shaped clamp; 412. Clamping tube; 413. Second nut; 42. First nut; 5. Elastic telescopic rod; 6. End face gear; 7. Bow-shaped plate; 8. Leak-proof component; 9. Sealing component; 10. Demolding layer; 11. Third nut. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses an arched lifting mold tool for post-cast strips in precast composite slabs. (Refer to...) Figure 1 and Figure 2 An arched formwork tool for post-cast strips in precast composite slabs includes a lower formwork 1 located between two adjacent floor slabs and abutting against the bottom of both slabs. The length direction of the lower formwork 1 is consistent with the length direction of the post-cast strip, and the width of the lower formwork 1 is greater than the width of the post-cast strip. A tongue and groove are formed on the bottom of the two floor slabs on the side closest to each other, and the lower formwork 1 abuts against the tongue and groove at the bottom of the floor slabs. A through-wall rod 2 passes through the lower formwork 1, located between the two adjacent floor slabs. An upper formwork 3, which abuts against the top of both floor slabs, is mounted on the through-wall rod 2. The length of the upper formwork 3 is greater than the width of the post-cast strip, and the through-wall rod 2 passes through the upper formwork 3. A clamping device is also provided on the through-wall rod 2 to drive the lower formwork 1 and the upper formwork 3 to abut against the sides of the floor slabs respectively.

[0035] Reference Figure 2 and Figure 3 The through-wall rod 2 is provided with external threads. The through-wall rod 2 includes an upper through-wall bolt 21 that passes through the upper template 3 and a lower through-wall bolt 22 that passes through the lower template 1. The upper through-wall bolt 21 and the lower through-wall bolt 22 are coaxially arranged, and a threaded cylinder 23 is threadedly connected between the upper through-wall bolt 21 and the lower through-wall bolt 22. The threaded cylinder 23 abuts against the end face of the lower template 1 near the upper template 3. After the construction of the pouring strip is completed, the threaded cylinder 23 can be removed from the upper through-wall bolt 21, so that the threaded cylinder 23, the lower through-wall bolt 22 and the lower template 1 can be recycled.

[0036] Reference Figure 2 and Figure 3The clamping device includes a clamping component 41 that abuts against the side of the lower template 1 away from the upper template 3 and a first nut 42 that is threaded onto the upper through-wall bolt 21. An arc-shaped plate 7 is provided on the end face of the upper template 3 away from the lower template 1. The arc-shaped plate 7 is made of spring steel and is fastened to the upper template 3. Both ends of the arc-shaped plate 7 abut against the two ends of the upper template 3, and a through hole is provided at the top of the arc-shaped plate 7 for the upper through-wall bolt 21 to pass through.

[0037] When the upper template 3 and lower template 1 are driven to abut against the sides of the floor slab, the lower template 1 is first driven to abut against the bottom of the floor slab by the abutting component 41. At the same time, the first nut 42 is rotated. Driven by the upper through-wall bolt 21, the first nut 42 moves towards the bow plate 7 and abuts against the end face of the bow plate 7 away from the upper template 3. At this time, the bow plate 7 drives the upper template 3 to abut against the top of the floor slab. Since the bow plate 7 has a certain elasticity, when the first nut 42 abuts against the top of the bow plate 7, the bow plate 7 transmits the abutting force to its two ends, so that the two ends of the upper template 3 are evenly stressed. This ensures that the floor slabs on both sides of the post-pouring strip are set at the same height, effectively guaranteeing the flatness of the floor slab after casting.

[0038] Reference Figure 2 and Figure 3 In this embodiment, the clamping assembly 41 includes a U-shaped clip 411 sleeved on the lower through-wall bolt 22, a clamping tube 412 abutting between the U-shaped clip 411 and the lower template 1, and a second nut 413 threaded onto the lower through-wall bolt 22. Each U-shaped clip 411 corresponds to two clamping tubes 412, which are cylindrical steel pipes located in two grooves on the U-shaped clip 411 and on opposite sides of the lower through-wall bolt 22. The lower template 1 has an inverted U-shaped cross-section, with the length of the steel pipe greater than its width, and the length direction of the steel pipe aligned with the width direction of the lower template 1. The second nut 413 is located on the side of the U-shaped clip 411 away from the clamping tube 412. Rotate the second nut 413. Driven by the through-wall bolt 22, the second nut 413 pushes the mountain-shaped clamp 411 and the clamping tube 412 toward the lower formwork 1 until the clamping tube 412 abuts against the U-shaped side wall of the lower formwork 1. At this time, the lower formwork 1 is stably clamped against the bottom of the floor slab.

[0039] In other embodiments, the clamping assembly 41 includes a clamping plate sleeved on the through-wall bolt 22, a damping pad adhered to the end face of the clamping plate near the lower template 1, and a nut sleeved on the through-wall bolt 22, the nut being located on the side of the clamping plate away from the lower template 1. Rotating the nut causes the thread of the through-wall bolt 22 to push the clamping plate towards the lower template 1, causing the damping pad to press against the lower template 1, thereby ensuring the lower template 1 is stably clamped against the bottom of the floor slab.

[0040] To quickly bring the lower formwork 1 into contact with the floor slab, refer to... Figure 2 and Figure 4 The upper through-wall bolt 21 and the lower through-wall bolt 22 have opposite thread directions. Both the upper through-wall bolt 21 and the lower through-wall bolt 22 have elastic telescopic rods 5 coaxially fixed to their respective end faces. The elastic telescopic rods 5 have end face gears 6 coaxially fixed to their respective end faces. The two end face gears 6 mesh and are properly matched, and the end face gears 6 are movably arranged inside the threaded cylinder 23.

[0041] When the first nut 42 and the second nut 413 are rotated, the upper template 3 is abutted against the top of the floor slab and the lower template 1 is abutted against the bottom of the floor slab. In order to make the upper template 3 and the lower template 1 abut against the floor slab more quickly and tightly, the threaded cylinder 23 can be driven to rotate. At the same time, one of the upper through-wall bolt 21 and the lower through-wall bolt 22 is controlled not to rotate synchronously with the threaded cylinder 23. The threaded cylinder 23 drives the upper through-wall bolt 21 and the lower through-wall bolt 22 to move towards each other, so that the two end face gears 6 elastically abut and mesh, which limits the upper through-wall bolt 21 and the lower through-wall bolt 22 from rotating synchronously with the threaded cylinder 23 as much as possible. This achieves rapid adjustment of the distance between the upper template 3 and the lower template 1, thereby making the lower template 1 quickly abut against the floor slab.

[0042] To minimize the overflow and dripping of slurry from the joint between the lower formwork 1 and the floor slab, refer to... Figure 2 and Figure 4 A sealing element 9 is provided on the edge of the lower template 1. The sealing element 9 is located on the end face of the lower template 1 near the upper template 3. The sealing element 9 can be a rubber strip or a sponge strip. In this embodiment, the sealing element 9 is set as a sponge strip. The sponge strip is adhered to the lower template 1. When the lower template 1 is pressed against the bottom of the floor slab, the sponge strip is located in the tongue and groove and abuts against the inner wall of the tongue and groove.

[0043] Because the through-wall bolts 22 penetrate the lower formwork 1, mortar on the lower formwork 1 easily drips from the locations where the through-wall bolts 22 penetrate. To minimize mortar dripping, refer to... Figure 2 and Figure 4 An adjustable leak-proof component 8 is installed on the through-wall rod 2. The leak-proof component 8 is located between the clamping tube 412 and the lower template 1. The leak-proof component 8 can be a sealing plate threaded onto the lower through-wall bolt 22, or a gasket threaded onto the lower through-wall bolt 22. In this embodiment, the leak-proof component 8 is a gasket. A third nut 11 is provided between the gasket and the clamping tube 412. The third nut 11 is threaded onto the lower through-wall bolt 22. Rotating the third nut 11 pushes the gasket to press against the lower template 1, and the gasket can effectively prevent the slurry from dripping.

[0044] To facilitate the recycling of the threaded cylinder 23 and the lower template 1, refer to Figure 2 and Figure 4 Both the threaded cylinder 23 and the lower template 1 are provided with a release layer 10. The release layer 10 reduces the adhesion between the lower template 1 and the threaded cylinder 23 and the slurry, making it easier for construction workers to quickly remove the lower template 1 and the threaded cylinder 23 after the post-pouring strip has cured.

[0045] When recycling the threaded cylinder 23, it needs to be pushed out from the cured post-cast strip in a direction away from the upper mold plate 3. To ensure that the threaded cylinder 23 can be pushed out quickly, refer to... Figure 2 and Figure 4 The diameter of the end face of the threaded cylinder 23 near the upper mold plate 3 is smaller than the diameter of the end face of the threaded cylinder 23 near the lower mold plate 1, which makes the threaded cylinder 23 detach from the cured post-cast strip better and faster.

[0046] The implementation principle of the bow-shaped hanging formwork tool for post-cast strip of precast composite slabs in this application embodiment is as follows: First, the upper template 3 with the bow-shaped plate 7 is placed on the top of the floor slab. The upper through-wall bolt 21 is passed through the bow-shaped plate 7 and the upper template 3, and the first nut 42 and the threaded cylinder 23 are respectively rotated and sleeved on both ends of the upper through-wall bolt 21. Next, the lower template 1, the washer, the third nut 11, the mountain-shaped clip 411 and the second nut 413 are sequentially sleeved on the lower through-wall bolt 22, and the lower through-wall bolt 22 is threaded onto the threaded cylinder 23. At this time, the upper template 3 and the lower template 1 are hung on the floor slab.

[0047] Then, the clamping tube 412 is placed on the U-shaped clamp 411, and the first nut 42 and the second nut 413 are rotated, so that the upper formwork 3 is abutted against the top of the floor slab and the lower formwork 1 is abutted against the bottom of the floor slab. The threaded cylinder 23 is rotated, and the threaded cylinder 23, through the upper through-wall bolt 21 and the lower through-wall bolt 22, drives the upper formwork 3 and the lower formwork 1 to tightly abut against both sides of the floor slab. Finally, the third nut 11 is rotated, and the third nut 11 drives the washer to press firmly against the lower formwork 1. At this point, the formwork support for the post-pouring strip is complete.

[0048] After the formwork is erected, slurry is poured onto the lower formwork 1. After the slurry solidifies to form a post-pouring strip, the second nut 413, the mountain-shaped clamp 411, the third nut 11, the washer, the lower formwork 1, the lower through-wall bolt 22, and the threaded cylinder 23 are removed from the solidified post-pouring strip for recycling.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An arched lifting formwork tool for post-cast strips of precast composite slabs, comprising a lower formwork (1) located between two adjacent floor slabs and abutting against the bottom of both floor slabs, characterized in that: The lower template (1) is provided with a through-wall rod (2), the through-wall rod (2) is located between two adjacent floor slabs, the through-wall rod (2) is provided with an upper template (3) that abuts against the top of both floor slabs, and the through-wall rod (2) is also provided with a clamping device for driving the lower template (1) and the upper template (3) to abut against the two sides of the floor slab respectively. The through-wall rod (2) includes an upper through-wall bolt (21) that passes through the upper template (3) and a lower through-wall bolt (22) that passes through the lower template (1). The threads of the upper through-wall bolt (21) and the lower through-wall bolt (22) are opposite in direction. A threaded cylinder (23) is threadedly connected between the upper through-wall bolt (21) and the lower through-wall bolt (22). The threaded cylinder (23) abuts against the end face of the lower template (1) near the upper template (3). Both the upper through-wall bolt (21) and the lower through-wall bolt (22) are coaxially fixed with elastic telescopic rods (5) on their respective end faces. The elastic telescopic rods (5) are provided with end face gears (6). The two end face gears (6) mesh and are properly matched, and the end face gears (6) are movably disposed inside the threaded cylinder (23).

2. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 1, characterized in that: The through-wall rod (2) is provided with an external thread. The clamping device includes a clamping component (41) that abuts against the side of the lower template (1) away from the upper template (3) and a first nut (42) that is threaded onto the through-wall rod (2). The first nut (42) abuts against the side of the upper template (3) away from the clamping component (41).

3. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 2, characterized in that: The clamping assembly (41) includes a mountain-shaped clip (411) sleeved on the through-wall rod (2), a clamping tube (412) abutting between the mountain-shaped clip (411) and the lower template (1), and a second nut (413) threaded on the through-wall rod (2), wherein the second nut (413) abuts against the side of the mountain-shaped clip (411) away from the clamping tube (412).

4. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 1, characterized in that: An arched plate (7) is provided on the end face of the upper template (3) away from the lower template (1). The upper through-wall bolt (21) is provided through the upper template (3) and the arched plate (7). The first nut (42) is pressed against the end face of the arched plate (7) away from the upper template (3).

5. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 3, characterized in that: The through-wall rod (2) is adjustablely provided with a leak-proof component (8), which is located between the clamping tube (412) and the lower template (1). The leak-proof component (8) is pressed against the end face of the lower template (1) on the side away from the upper template (3).

6. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 1, characterized in that: The lower template (1) is provided with a sealing element (9) on its edge, and the sealing element (9) is located on the end face of the lower template (1) near the upper template (3).

7. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 1, characterized in that: Both the threaded cylinder (23) and the lower template (1) are provided with a release layer (10).

8. The bow-shaped lifting mold tool for post-cast strip of precast composite slabs according to claim 1, characterized in that: The diameter of the end face of the threaded cylinder (23) near the upper template (3) is smaller than the diameter of the end face of the threaded cylinder (23) near the lower template (1).

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