Pull-up structure for lamination plate strip reinforcement installation

Abstract

The utility model relates to the technical field of building engineering construction, specifically discloses a kind of lifting structure for laminated slab strip reinforcement installation, comprising: aluminium mould rigid support assembly, including aluminium alloy formwork and the reinforcing rib being set at aluminium alloy formwork back, the top of aluminium alloy formwork is used to be attached with laminated slab strip side edge, bottom is supported in floor base layer by support support;Water stop screw rod component, including upper section screw rod, lower section screw rod and the water stop structure being set at the connecting place of upper section screw rod and lower section screw rod, the top end of upper section screw rod is used to be connected with the reinforcing bar in laminated slab strip preburied, lower section screw rod passes through water stop structure and the preset hole on aluminium alloy formwork in turn, and is pulled tight by fastener;Waterproof assembly, including the gasket being set in the inboard of aluminium alloy formwork, gasket and aluminium alloy formwork connection form the plugging groove around screw rod hole. Thus, high-strength support and body waterproof function can be integrated, and the overall construction quality and efficiency of laminated slab strip are improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a lifting structure for reinforcing and installing composite slab strips. Background Technology

[0002] In prefabricated buildings, the connection between the composite slab and the post-cast slab strip is a critical node for structural stress and waterproofing. Currently, the construction of this part generally adopts a support and reinforcement system of "ordinary continuous bolts combined with wooden or steel formwork". This traditional system has revealed several technical defects in practical applications, seriously affecting construction quality, structural safety, and construction efficiency.

[0003] First, the rigidity and stability of the support system are insufficient. The overall rigidity of the traditional structure composed of bolts and formwork is relatively weak. During concrete pouring and vibration, lateral pressure easily causes the formwork to bulge and deform. Actual measurement data shows that this deformation can typically reach 5-8 mm, resulting in the flatness of the bottom surface of the formed slab far exceeding the allowable deviation value in national standards (the standard requires ≤3 mm). Excessive flatness not only affects the construction of subsequent decoration works, but also often requires secondary repair work such as manual chiseling and mortar leveling, increasing project costs and extending the construction period.

[0004] Secondly, there are potential risks of grout leakage and seepage. Traditionally used ordinary threaded rods lack any water-stopping function. During concrete pouring, the installation gap between the threaded rod and the formwork is highly susceptible to cement grout leakage, resulting in material waste and affecting the structural appearance. More seriously, the threaded rod holes penetrating the formwork can later form seepage channels running through the structural cross-section. To eliminate this risk, the threaded rod holes require tedious post-treatment, typically involving multiple steps such as "exposing the threaded rod by chiseling, applying rust prevention treatment, and sealing with waterproof mortar." This post-treatment process relies on manual labor, making quality difficult to guarantee. Furthermore, the inconsistent shrinkage of the sealing material and the concrete matrix can easily lead to micro-cracks later on, leaving a long-term risk of leakage.

[0005] Secondly, waterproofing measures are disconnected from the support system. Existing solutions typically treat support and waterproofing as two separate processes. For example, waterproofing measures (such as embedded waterstops and applying waterproof coatings) need to be implemented separately after the support system is removed. This separation of "support" and "waterproofing" makes it impossible to effectively integrate the two in terms of structural construction, making it difficult to form a continuous, complete, and reliable waterproof barrier at the joints between the slab strips and composite slabs.

[0006] In summary, existing composite slab and strip construction methods have not effectively addressed the synergistic issues of ensuring support rigidity, achieving long-term waterproofing, and simplifying construction procedures. Therefore, there is an urgent need to optimize and improve the connection structure between the current composite slab and post-cast strip, integrating high-strength support with the inherent waterproofing function to solve the problems of the existing technology. Utility Model Content

[0007] The purpose of this utility model is to provide a platform hoisting device for the flood discharge channel of a hydropower station, which can integrate high-strength support and waterproof function of the main body, thereby improving the overall construction quality and efficiency of the composite slab strip.

[0008] This utility model is achieved through the following technical solution:

[0009] A platform hoisting device for a hydropower station spillway includes:

[0010] A rigid support assembly for aluminum formwork includes an aluminum alloy formwork and reinforcing ribs disposed on the back of the aluminum alloy formwork. The top of the aluminum alloy formwork is used to fit against the side of the composite slab strip, and the bottom is supported on the floor slab base by a support.

[0011] The water-stop threaded rod assembly includes an upper threaded rod, a lower threaded rod, and a water-stop structure disposed at the connection between the upper threaded rod and the lower threaded rod. The top end of the upper threaded rod is used to connect with the steel bars embedded in the composite slab strip. The lower threaded rod passes through the water-stop structure and the preset holes on the aluminum alloy template in sequence, and is tightened by fasteners.

[0012] A waterproof component includes a gasket disposed inside the aluminum alloy template, the gasket being connected to the aluminum alloy template to form a sealing groove surrounding the lead screw hole, the sealing groove being used to fill waterproof material.

[0013] Alternatively, the water-stopping structure includes a circular water-stop plate, which is welded to the connection between the upper section of the screw rod and the lower section of the screw rod.

[0014] Alternatively, the water-stopping structure may further include two sealing rings, which are respectively fitted onto the threaded rods on both sides of the water-stopping plate and are interference-fitted with the threaded rods.

[0015] Alternatively, the sealing ring is an EPDM sealing ring.

[0016] Alternatively, the circular waterstop is formed by stacking metal welding materials;

[0017] And / or, the material of the circular waterstop is Q235 steel.

[0018] Alternatively, the top end of the upper screw section is welded to a pre-embedded reinforcing bar.

[0019] Alternatively, the fastener includes a U-shaped clip and a nut, the nut being threadedly connected to the lower lead screw and embedded in a pre-set hole in the aluminum alloy template; the U-shaped clip is located below the nut and sleeved on the end of the lower lead screw.

[0020] Alternatively, the gasket is a trapezoidal plastic gasket, which is fixedly connected to the aluminum alloy template to form the sealing groove.

[0021] Alternatively, the reinforcing ribs are U-shaped reinforcing ribs, which are spaced apart along the length of the aluminum alloy template.

[0022] Alternatively, the waterproof material filled in the sealing groove is micro-expansion waterproof mortar.

[0023] The advantages of this utility model compared to the prior art are as follows:

[0024] Through the above technical solution, the aluminum formwork rigid support assembly and the water-stop threaded rod assembly together form a closed-loop force system of "vertical support and horizontal tension". The aluminum alloy formwork and its back reinforcing ribs provide solid vertical support, which can effectively resist the lateral pressure during concrete pouring; the water-stop threaded rod assembly, through the pre-tightening force applied by the fasteners, tightly binds and presses the formwork onto the composite plate, forming a reliable horizontal constraint. All of these enhance the rigidity and integrity of the entire structure, prevent formwork bulging and deformation, and ensure that the flatness of the bottom surface of the formed plate strip can be stably controlled within the allowable deviation range of the specifications, avoiding secondary repair work due to deviations.

[0025] The water-stop structure in the middle of the water-stop screw assembly can tightly interlock with the poured concrete, effectively blocking any seepage paths that may occur along the screw's axial direction. Secondly, the waterproofing component, through the pre-formed sealing groove in the gasket, provides a regular and robust structural space for subsequent filling of the waterproofing material. After filling, the waterproofing material in the sealing groove can tightly bond with the concrete surrounding the screw hole, forming a locally thickened, dense waterproof sealing ring. This eliminates the quality risks associated with traditional post-chiseling and filling processes, achieving a permanent seal for the screw hole and improving the impermeability of the plate-strip joint.

[0026] By integrating formwork support, tie-in fastening, and waterproofing construction into a single unit, "support is waterproofing" is achieved through integrated construction. The water-stop threaded rod assembly completes the tie-in and water-stop pre-setting during installation, and the pre-reserved sealing groove eliminates the tedious step of later chiseling. This integrated design significantly reduces the connection and waiting time between multiple processes such as support, waterproofing, and sealing in traditional methods, lowering labor intensity and costs. Simultaneously, it avoids later repairs and leakage control, reducing material waste and lowering the overall cost of the building structure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0028] Figure 1 This is a schematic diagram of the lifting structure for reinforcing and installing composite slab strips provided by this utility model in one embodiment.

[0029] The attached diagram shows the markings and corresponding component names: 11-Aluminum alloy template, 12-Reinforcing rib, 21-Upper section threaded rod, 22-Lower section threaded rod, 23-Circular waterstop plate, 3-Laminated plate strip, 31-Reinforcing bar, 4-Fastener, 5-Shim. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that while the description of these embodiments is intended to aid in understanding the present invention, it does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0031] According to a first aspect of this disclosure, a lifting structure for reinforcing installation of laminated slab strips is provided. Wherein, Figure 1 Specific embodiments thereof are shown.

[0032] See Figure 1 As shown, the lifting structure for reinforcing the composite slab strip includes: an aluminum formwork rigid support assembly, including an aluminum alloy formwork 11 and reinforcing ribs 12 on the back of the aluminum alloy formwork 11. The top of the aluminum alloy formwork 11 is used to fit against the side of the composite slab strip 3, and the bottom is supported on the floor slab base by a support; a water-stop threaded rod assembly, including an upper threaded rod 21, a lower threaded rod 22, and a water-stop structure set at the connection between the upper threaded rod 21 and the lower threaded rod 22. The top of the upper threaded rod 21 is used to connect with the steel bars 31 pre-embedded in the composite slab strip 3. The lower threaded rod 22 passes through the water-stop structure and the preset holes on the aluminum alloy formwork 11 in sequence, and is tightened by fasteners 4; and a waterproofing assembly, including a gasket 5 set inside the aluminum alloy formwork 11. The gasket 5 is connected to the aluminum alloy formwork 11 to form a sealing groove around the threaded rod hole, and the sealing groove is used to fill the waterproofing material.

[0033] Through the above technical solution, the aluminum formwork rigid support assembly and the water-stop threaded rod assembly together form a closed-loop force system of "vertical support and horizontal tension". The aluminum alloy formwork 11 and its back reinforcing ribs 12 provide solid vertical support, which can effectively resist the lateral pressure during concrete pouring; the water-stop threaded rod assembly, through the pre-tightening force applied by the fasteners 4, tightly pulls and presses the formwork onto the composite plate, forming a reliable horizontal constraint. Together, these components enhance the rigidity and integrity of the entire structure, prevent formwork bulging and deformation, and ensure that the flatness of the bottom surface of the formed plate strip can be stably controlled within the allowable deviation range of the specifications, avoiding secondary repair work due to deviation.

[0034] The water-stop structure in the middle of the water-stop screw assembly can tightly interlock with the poured concrete, effectively blocking any seepage paths that may occur along the screw's axial direction. Secondly, the waterproofing component, through the pre-formed sealing groove in the gasket 5, provides a regular and robust structural space for subsequent filling of the waterproofing material. After filling, the waterproofing material in the sealing groove can tightly bond with the concrete surrounding the screw hole, forming a locally thickened and dense waterproof sealing ring. This eliminates the quality risks associated with traditional post-chiseling and filling processes, achieving a permanent seal for the screw hole and improving the impermeability of the plate-strip joint.

[0035] By integrating formwork support, tie-in fastening, and waterproofing construction into a single unit, "support is waterproofing" is achieved through integrated construction. The water-stop threaded rod assembly completes the tie-in and water-stop pre-setting during installation, while the pre-reserved sealing groove eliminates the tedious step of later chiseling. This integrated design significantly reduces the connection and waiting time between multiple processes such as support, waterproofing, and sealing in traditional methods, lowering labor intensity and costs. Simultaneously, it avoids later repairs and leakage control, reducing material waste and lowering the overall cost of the building structure.

[0036] It should be noted that directional terms such as "inner" and "outer" refer to "inner" and "outer" relative to the outline of the component. "Inner" refers to the direction towards the inside of the component, and "outer" refers to the direction away from it. Furthermore, terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Moreover, in the following descriptions with accompanying drawings, the same reference numerals in different drawings represent the same element. The phrase "and / or" in the text refers to A and / or B, indicating that there are three possible scenarios: only A, only B, and both A and B. The phrase " / and" in the text refers to A and B, indicating that there are two possible scenarios: only A and both A and B.

[0037] In this disclosure, the water-stopping structure includes a circular water-stop plate 23, which is welded to the connection between the upper section of the threaded rod 21 and the lower section of the threaded rod 22. The circular water-stop plate 23, as a wide metal sheet, is fully welded and fixed to the middle of the threaded rod, acting as an immovable solid barrier. After the concrete is poured and solidified, the water-stop plate is completely encased within the concrete, effectively blocking and extending any seepage paths that may occur along the surface of the threaded rod. The capillary action or osmotic pressure of water is difficult to bypass this wide metal sheet, thus being actively and physically blocked, enhancing the impermeability of the core area of ​​the strip. Because the water-stop plate has a large diameter (e.g., 50 mm) and its surface is in direct contact with the concrete, it can generate extremely strong mechanical interlocking and bonding forces with the surrounding concrete, enhancing the water-stop plate's resistance to movement, eliminating the potential for circumferential water seepage at the junction of the threaded rod and the concrete, and ensuring the long-term reliability of the waterproofing effect.

[0038] Furthermore, the water-stopping structure also includes two sealing rings, which are respectively fitted onto the threaded rods on both sides of the water-stopping plate and are interference-fitted with the threaded rods.

[0039] The circular waterstop 23 provides a robust, static, permanent waterproof body, while the interference-fit sealing ring provides a dynamic, compensating seal. During the construction phase, before the concrete has hardened and fully enveloped the waterstop, the sealing ring can immediately and effectively seal any temporary gaps between the threaded rod and the waterstop, preventing grout leakage and ensuring the initial pouring quality of the concrete.

[0040] The elastic material of the sealing ring conforms tightly to the surface of the threaded rod, effectively filling and blocking even the smallest seepage paths that water might attempt to bypass the edge of the water-retaining plate along the threaded rod surface. The sealing ring works in conjunction with the rigid water-stop plate to seal potential circumferential seepage channels, enhancing the reliability and durability of the waterproofing effect. Simultaneously, the interference fit design of the sealing ring ensures it maintains close contact with the threaded rod at all times, accommodating minute displacements and disturbances while preserving its sealing performance. This avoids the risk of seal failure due to construction activities, improving the consistency and stability of the project quality.

[0041] Two sealing rings are respectively set on both sides of the waterstop plate. When the template is tightened by applying pre-tightening force through the lower screw 22, the sealing rings are squeezed more evenly, which not only ensures the sealing effect, but also avoids the damage to the sealing rings or welds that may be caused by stress concentration on one side, thereby extending the service life of the component.

[0042] Specifically, the sealing ring is an EPDM (ethylene propylene diene monomer) sealing ring. EPDM rubber has excellent resistance to ozone, ultraviolet radiation, and atmospheric aging, enabling the sealing ring to effectively resist aging and embrittlement in the exposed environment of the construction site and during long-term use of the structure. This delays the degradation of material performance and ensures that the service life of the sealing ring matches the design life of the building structure, avoiding the risk of leakage caused by premature aging failure of the sealing ring. At the same time, EPDM rubber maintains its elasticity and sealing performance over a wide temperature range of 40℃ to +120℃, ensuring that it does not soften or deform under high-temperature hydration heat conditions and does not harden or lose elasticity at low winter temperatures, thus maintaining a stable and reliable sealing pressure under all operating conditions.

[0043] In one embodiment, the circular waterstop 23 is formed by stacking metal welding materials. Through stacking welding, the welding materials and the base materials of the upper and lower screw rods 22 melt and metallurgically bond at high temperatures, forming a continuous and uniform fusion transition zone at the connection between the waterstop and the screw rod. This one-piece molding process avoids defects such as incomplete fusion and slag inclusions that may occur with prefabricated waterstops due to insufficient spot welding or perimeter welding. It improves the tensile and shear strength of the connection, and can reliably withstand the impact, vibration, and screw rod preload during concrete pouring, effectively preventing the risk of the waterstop falling off or tearing during construction.

[0044] The stacking welding process offers high flexibility, allowing for free control over the final shape, thickness, and stacking contour of the resulting waterstop according to actual needs. Simultaneously, the naturally formed weld ripples and rough surface of the stacking weld provide a mechanical interlocking interface with the concrete compared to the smooth surface of mechanically rolled waterstops. Once the concrete has hardened, the cement paste can fully penetrate and anchor itself within these microscopic undulating structures, increasing the bond and adhesion between the two, enhancing the waterstop's resistance to displacement, and thus improving the overall water-blocking effect.

[0045] In this disclosure, the circular waterstop 23 is made of Q235 steel. Q235 steel is a low-carbon steel with excellent weldability. Its low carbon equivalent means that when welded to a carbon steel threaded rod using conventional arc welding or similar processes, the weld area is less prone to hardening and welding cracks. This allows the waterstop formed by stacked welding to form a dense and strong metallurgical bond with the threaded rod, ensuring the connection strength and integrity between the waterstop structure and the threaded rod body, thus guaranteeing the reliability of this core waterproofing node. When the concrete structure undergoes slight deformation due to temperature changes or loads, the Q235 steel waterstop can undergo a certain degree of elastic or plastic deformation without easily fracturing. This coordinated deformation ability prevents separation or cracking at the interface between the waterstop and the concrete due to sudden changes in stiffness, thereby maintaining a long-term effective waterproof barrier.

[0046] In this disclosure, the top end of the upper threaded rod 21 is welded to the pre-embedded reinforcing bar 31. The welding forms a strong metallurgical bond, making the upper threaded rod 21 and the pre-embedded reinforcing bar 31 an integral unit. This effectively transfers the tension force borne by the upper threaded rod 21 directly to the main structural reinforcing bar 31, avoiding the loosening or displacement that may occur with flexible connections such as wire binding. This ensures that the anchoring end of the entire lifting system is absolutely stable during concrete pouring and vibration, providing a guarantee for the tight pressing of the formwork.

[0047] In one embodiment provided in this disclosure, the fastener 4 includes a U-shaped clip and a nut. The nut is threadedly connected to the lower section of the lead screw 22 and is embedded in a pre-set hole on the aluminum alloy template 11. The U-shaped clip is located below the nut and is sleeved on the end of the lower section of the lead screw 22. When the nut is tightened, its lower end face transmits pressure to the U-shaped clip, which then distributes the pressure to a larger area on the back of the aluminum alloy template 11. This avoids the preload force acting directly and concentratedly on the smaller hole wall area on the template, reducing the risk of local deformation or tearing of the template under high pressure and ensuring the reliable application and long-term maintenance of the tension force.

[0048] Embedding the nut portion into the pre-drilled hole in the template reduces the overall height of the fastening structure, making it more compact. Simultaneously, the hole wall effectively restrains the nut circumferentially, preventing it from rotating and loosening relative to the template during construction vibrations or long-term use. The coordinated action of the U-shaped clamp and the nut forms a mechanical interlocking defense, ensuring the long-term stability of the preload.

[0049] In one embodiment provided in this disclosure, the gasket 5 is a trapezoidal plastic gasket 5, which is fixedly connected to the aluminum alloy template 11 to form a sealing groove. The trapezoidal three-dimensional structure naturally forms a reserved groove with a small opening and a large base. When micro-expansion waterproof mortar is filled into this groove, the solidified mortar block will form a matching trapezoidal wedge. This shape produces an excellent mechanical self-locking effect, which can effectively prevent the mortar sealing block from falling off or loosening from the hole under drying shrinkage stress or slight external disturbance, ensuring the long-term stability and effectiveness of the secondary seal.

[0050] The gasket 5, made of plastic (such as PP), can resist the corrosive effects of the alkaline environment of concrete. The plastic material is relatively soft and elastic, and undergoes slight deformation when the nut is tightened. This helps to tightly fill the microscopic gaps between the gasket 5 and the threaded rod and formwork, thus aiding in preventing cement grout leakage during pouring. Furthermore, plastic is inexpensive, easy to process, and suitable for mass production and application.

[0051] Furthermore, the reinforcing ribs 12 are U-shaped reinforcing ribs, which are spaced apart along the length of the aluminum alloy formwork 11. The U-shaped section, as a classic bending section, provides efficient and highly directional stiffness enhancement for the aluminum alloy formwork 11. When lateral pressure is generated during concrete pouring, these spaced U-shaped ribs act like multiple beams arranged on the back of the formwork, increasing the bending stiffness of the formwork along its length and controlling the overall deformation of the formwork within millimeter range. This directly ensures the flatness of the bottom surface of the formed strip and effectively avoids bulging and grout leakage.

[0052] Specifically, the reinforcing rib 12 is made of round steel with a diameter of 16 mm. The round steel section has a sufficient and engineering-proven flexural section modulus, providing precisely calculated rigidity supplement to the 5 mm thick aluminum alloy formwork 11. The specifications of the round steel ensure that the deformation of the reinforcing rib 12 is negligible when subjected to the lateral pressure of concrete, thereby strictly controlling the overall deformation of the formwork system within the allowable range, avoiding premature failure or overload damage caused by local component stiffness mismatch, and optimizing the reliability of the structure.

[0053] In this disclosure, the waterproofing material filled in the sealing groove is micro-expansion waterproof mortar. During the initial hardening stage, the micro-expansion waterproof mortar undergoes a slight volume expansion (expansion rate 0.02%-0.05%). After solidification, it actively and continuously applies compressive stress to the sidewalls of the sealing groove and the surface of the screw rod, offsetting any subsequent chemical shrinkage and drying shrinkage. This prevents the formation of shrinkage micro-cracks inside the sealing body or at the interface, ensuring the integrity of the seal.

[0054] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

[0055] Finally, it should be noted that this utility model is not limited to the above-described optional embodiments, and anyone can derive other various forms of products under the guidance of this utility model. The above specific embodiments should not be construed as limiting the scope of protection of this utility model, which should be determined by the claims, and the description can be used to interpret the claims.

Claims

1. A lifting structure for reinforcing and installing composite slab strips, characterized in that, include: A rigid support assembly for aluminum formwork includes an aluminum alloy formwork and reinforcing ribs disposed on the back of the aluminum alloy formwork. The top of the aluminum alloy formwork is used to fit against the side of the composite slab strip, and the bottom is supported on the floor slab base by a support. The water-stop threaded rod assembly includes an upper threaded rod, a lower threaded rod, and a water-stop structure disposed at the connection between the upper threaded rod and the lower threaded rod. The top end of the upper threaded rod is used to connect with the steel bars embedded in the composite slab strip. The lower threaded rod passes through the water-stop structure and the preset holes on the aluminum alloy template in sequence, and is tightened by fasteners. A waterproof component includes a gasket disposed inside the aluminum alloy template, the gasket being connected to the aluminum alloy template to form a sealing groove surrounding the lead screw hole, the sealing groove being used to fill waterproof material.

2. The lifting structure for reinforcing and installing composite slab strips according to claim 1, characterized in that, The water-stopping structure includes a circular water-stopping plate, which is welded to the connection between the upper section of the screw rod and the lower section of the screw rod.

3. The lifting structure for reinforcing and installing composite slab strips according to claim 2, characterized in that, The water-stopping structure also includes two sealing rings, which are respectively fitted onto the threaded rods on both sides of the water-stopping plate and are interference-fitted with the threaded rods.

4. The lifting structure for reinforcing and installing composite slab strips according to claim 3, characterized in that, The sealing ring is an EPDM sealing ring.

5. The lifting structure for reinforcing and installing composite slab strips according to claim 2, characterized in that, The circular waterstop plate is formed by stacking metal welding materials; And / or, the material of the circular waterstop is Q235 steel.

6. The lifting structure for reinforcing and installing composite slab strips according to claim 1, characterized in that, The top of the upper section of the screw is welded to the pre-embedded reinforcing bar.

7. The lifting structure for reinforcing and installing composite slab strips according to claim 1, characterized in that, The fastener includes a U-shaped clip and a nut. The nut is threadedly connected to the lower section of the lead screw and is embedded in a pre-set hole on the aluminum alloy template. The U-shaped clip is located below the nut and is sleeved on the end of the lower section of the lead screw.

8. The lifting structure for reinforcing and installing composite slab strips according to claim 1, characterized in that, The gasket is a trapezoidal plastic gasket, which is fixedly connected to the aluminum alloy template to form the sealing groove.

9. The lifting structure for reinforcing and installing composite slab strips according to claim 1, characterized in that, The reinforcing ribs are U-shaped and are spaced apart along the length of the aluminum alloy template.

10. The lifting structure for reinforcing and installing composite slab strips according to any one of claims 1-9, characterized in that, The waterproof material filled in the sealing groove is micro-expansion waterproof mortar.

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