Prefabricated composite floor slab connecting device

Abstract

The invention relates to the field of buildings, and discloses a prefabricated composite floor slab connecting device which comprises at least two composite floor slabs with reinforcing rib assemblies, a connecting groove is formed in the side, close to the adjacent composite floor slab, of each composite floor slab, and each reinforcing rib assembly is provided with an exposed part located in the corresponding connecting groove; the separator is at least partially arranged between the two composite floor slabs and enables the two composite floor slabs to be relatively separated; and the connecting assembly connects the two composite floor slabs with the partition piece and comprises at least one pair of hooking pieces and a connecting rib connected with the partition piece, the first ends of the two hooking pieces in each pair are connected to the exposed parts in the connecting grooves of the two composite floor slabs in a hooked mode, and the second ends of the two hooking pieces in each pair are connected to the connecting rib in a hooked mode. The connecting strength and stability between the adjacent composite floor slabs can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of buildings, and in particular to a prefabricated composite floor slab connection device. Background Art

[0002] Composite slabs are assembled monolithic slabs made from precast panels and cast-in-place reinforced concrete layers. They offer excellent integrity, with smooth upper and lower surfaces, making them easy to finish. They are suitable for high-rise buildings and large-span structures that require high overall rigidity.

[0003] The installation process of composite floor slabs involves assembling multiple slabs and then pouring concrete. After assembly, gaps remain between the slabs, providing a gap for pouring concrete. In existing technologies, the slabs are not sufficiently connected, which can easily cause adjacent slabs to separate during the pouring process, impacting the overall construction quality.

[0004] Based on this, the existing technology still needs to be improved. Summary of the Invention

[0005] The main purpose of the present invention is to provide a prefabricated composite floor slab connection device to solve the problem in the prior art that adjacent composite floor slabs are not sufficiently connected and are easily separated during the subsequent pouring process.

[0006] According to one aspect of the present invention, a prefabricated composite floor slab connection device is proposed, comprising: at least two composite floor slabs having a reinforcing rib assembly, each composite floor slab having a connection groove formed on a side close to an adjacent composite floor slab, the reinforcing rib assembly having an exposed portion located within the connection groove; a separator, the separator being at least partially disposed between the two composite floor slabs and separating the two composite floor slabs relative to each other; a connection assembly, the connection assembly connecting the two composite floor slabs and the separator, and comprising at least one pair of hooking members and connecting ribs connected to the separators, the first ends of the two hooking members of each pair being respectively hooked to the exposed portions within the connection grooves of the two composite floor slabs, and the second ends being both hooked to the connecting ribs.

[0007] According to one embodiment of the present invention, at least two composite floor slabs are arranged in a transverse direction; the composite floor slabs form a plurality of connecting grooves arranged in a longitudinal direction, and the connecting assembly includes a plurality of pairs of hook-connecting members arranged in the longitudinal direction and corresponding to the plurality of connecting grooves respectively; each hook-connecting member is arranged in a transverse direction, and the exposed portion and the connecting ribs are arranged in a longitudinal direction.

[0008] According to one embodiment of the present invention, the first end of the hooking member is restricted in the connecting groove.

[0009] According to one embodiment of the present invention, the partition comprises a support plate and at least one pair of limiting plates connected to the support plate, the composite floor is partially supported on the support plate, and the two limiting plates of each pair are respectively engaged with the surfaces of the two composite floor.

[0010] According to one embodiment of the present application, the partition piece comprises at least one bracket arranged on the supporting plate, each bracket comprises a pair of limiting plates and a mounting plate connected between the pair of limiting plates, and the mounting plate is fixedly connected with the connecting rib.

[0011] According to one embodiment of the present application, the bracket and the hooking piece are arranged in a staggered manner in the transverse direction.

[0012] According to one embodiment of the present application, the at least two composite floors are arranged in the transverse direction; the device further comprises two rib cages arranged on the longitudinal sides of the composite floor, and the reinforcing rib assembly has at least two protruding parts protruding outward from the longitudinal sides of the composite floor and fixedly connected with the two rib cages respectively, and the longitudinal ends of the partition piece are fixedly connected with the two rib cages respectively.

[0013] According to one embodiment of the present application, the rib cage is provided with a positioning rib, and the partition piece is fixedly connected with the positioning rib through a U-shaped positioning sleeve.

[0014] According to one embodiment of the present application, one side of the composite floor away from the adjacent composite floor is formed with an additional connecting groove, and the reinforcing rib assembly has an additional exposed part arranged in the additional connecting groove; the device further comprises an additional hooking piece and an additional rib cage arranged on the lateral side of the composite floor, one end of the additional hooking piece is hooked with the additional exposed part, and the other end is fixedly connected with the additional rib cage.

[0015] According to one embodiment of the present application, the composite floor is provided with a hoisting mechanism, the hoisting mechanism comprises a fixing sleeve and a lifting ring rotatably connected with the fixing sleeve, and the fixing sleeve is arranged in the interior of the composite floor and fixedly connected with the reinforcing rib assembly.

[0016] In the technical scheme of the present application, the partition piece is arranged at least partially between the two composite floors, so that a pouring gap is reserved between the two composite floors; one side of the composite floor close to the adjacent composite floor is formed with a connecting groove to expose a part of the reinforcing rib assembly, and the exposed parts of the reinforcing rib assemblies of the two composite floors and the partition piece are connected together through at least one pair of hooking pieces and connecting ribs, so as to ensure that the two composite floors and the partition piece are firmly connected as a whole and stably connected without easily separating during the subsequent pouring process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A perspective view of the prefabricated composite floor connecting device according to an embodiment of the present application is shown. Figure 2 Fig. 4 shows another perspective view of the prefabricated composite floor slab connecting device according to an embodiment of the present application; Figure 3 Fig. 5 shows a top view of the prefabricated composite floor slab connecting device according to an embodiment of the present application; Figure 4 Fig. 6 shows a schematic view of the connecting assembly according to an embodiment of the present application; Figure 5 Fig. 7 shows a schematic view of the accessory hooking member according to an embodiment of the present application; Figure 6 Fig. 8 shows a schematic view of the partition connecting with the reinforcement cage according to an embodiment of the present application; Figure 7 Fig. 9 shows a schematic view of the hoisting mechanism according to an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the objects, technical solutions and advantages of the present application clearer, the embodiments of the present application are further described in detail below with reference to the drawings.

[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] It should be noted that all the expressions of "first" and "second" in the embodiments of the present application are used to distinguish two same name non-same entities or non-same parameters, and it can be seen that "first" and "second" are only for the convenience of description, and should not be understood as limiting the embodiments of the present application, and the subsequent embodiments will not be described one by one.

[0022] Reference Figures 1 to 4 and Figure 6The present invention proposes a prefabricated composite floor connection device 100, comprising: at least two composite floor slabs 110 with a reinforcing rib assembly, each composite floor slab 110 forming a connection groove 111 on a side close to the adjacent composite floor slab, and the reinforcing rib assembly having an exposed portion located in the connection groove 111; a separator 120, the separator 120 is at least partially arranged between the two composite floor slabs 110 and makes the two composite floor slabs 110 relatively separated; a connection assembly 130, the connection assembly 130 connects the two composite floor slabs 110 and the separator 120, and comprises at least one pair of hooking members 132 and a connecting rib 134 connected to the separator 120, the first ends of the two hooking members 132 of each pair are respectively hooked to the exposed portions in the connection grooves 111 of the two composite floor slabs 110, and the second ends are both hooked to the connecting rib 134.

[0023] In an embodiment of the present invention, the separator 120 is at least partially disposed between the two composite floor slabs 110, so that a casting gap is reserved between the two composite floor slabs 110; a connecting groove 111 is formed on one side of the composite floor slab 110 close to the adjacent composite floor slab to expose a portion of the reinforcement assembly, and the exposed portion of the reinforcement assembly of the two composite floor slabs 110 is connected to the separator 120 by at least one pair of hooks 132 and connecting ribs 134, ensuring that the two composite floor slabs 110 and the separator 120 are firmly connected as one body, and stably connected and not easily separated during the subsequent pouring process. In addition, the at least one pair of hooks 132 connected between the two composite floor slabs 110 can also act as a skeleton in the subsequently poured concrete, thereby improving the structural strength of the gap between the two composite floor slabs. The use of a hook connection method for installation has the advantage of a simple and fast installation process.

[0024] In some embodiments, at least two composite floor slabs 110 are arranged along a transverse direction X. The composite floor slabs 110 define a plurality of connecting grooves 111 arranged along a longitudinal direction Y. The connecting assembly 130 includes multiple pairs of hooking members 132 arranged along the longitudinal direction Y and corresponding to the multiple connecting grooves 111. The multiple pairs of hooking members 132 can mate with the multiple connecting grooves 111 of each composite floor slab 110 on a one-to-one basis. The first ends of the two hooking members 132 of each pair are hooked to exposed portions within each connecting groove 111 of the two composite floor slabs 110. Each hooking member 132 is arranged along the transverse direction X, with the exposed portions and connecting ribs 134 arranged along the longitudinal direction Y. This arrangement further enhances the connection strength between the two composite floor slabs 110. The connecting ribs 134 and the multiple pairs of hooking members 132 provided between the two composite floor slabs 110 can serve as a framework for the subsequent pouring of concrete, further improving the structural strength of the gap between the two composite floor slabs.

[0025] The reinforcement assembly is at least partially disposed inside the composite floor 110 and can include a mesh structure formed by a plurality of bars (e.g., steel bars). The reinforcement assembly can include a plurality of transverse bars 112 disposed along the transverse direction X and longitudinal bars 114 disposed along the longitudinal direction Y. In combination Figure 1 and Figure 4 The exposed portion of the reinforcement assembly can be the portion of the longitudinal bars 114 exposed by the connecting slots 111, i.e., the portion of the longitudinal bars 114 that can be effectively hooked together with the transverse hooking members 132 to provide the required connection strength. The hooking members 132 can include hooked portions at both ends and a flat extension portion in the middle. The hooking members 132 can be double-bent steel bars. Multiple pairs of hooking members 132 can be hooked to the same longitudinal bar 114, which can be quickly completed by passing the longitudinal bar 114 through the hooked portions of the second ends of each hooking member 132 of the multiple pairs, and then fixedly connecting (e.g., welding) the longitudinal bar 114 to the partition 120, which is quick and convenient to install.

[0026] In some embodiments, the first ends of the hooking members 132 are limited in the connecting slots 111 and cannot easily escape from the connecting slots 111. This can further enhance the connection strength and stability between the hooking members 132 and the composite floor 110, thereby ensuring the stable connection of the two composite floors 110. In some embodiments, the first ends of the hooking members 132 can be limited between the opposite side walls of the connecting slots 111, and the distance between the first ends of the hooking members 132 and the side walls is less than a predetermined value (e.g., 0-1 mm). In some embodiments, the first ends of the hooking members 132 can be interference fit with the connecting slots 111. In some embodiments, the first ends of the hooking members 132 can be limited in the connecting slots 111 by limiting structures.

[0027] Referring to Figure 3 and Figure 6 In some embodiments, the partition 120 includes a support plate 122 and at least one pair of limiting plates 126 connected to the support plate 122, and the composite floors 110 are partially supported on the support plate 122, and the two limiting plates 126 of each pair are respectively engaged (e.g., contacted, abutted) with the surfaces of the two composite floors 110. The composite floors 110 are partially supported on the support plate 122, so that the connection between the two composite floors 110 and the support plate 122 is more compact and the integrity is better. The two composite floors 110 are positioned by the at least one pair of limiting plates 126 of the partition 120, so that the two composite floors 110 are relatively separated, a required pouring gap is formed between them, and damage to the two composite floors 110 caused by collision during installation can also be prevented.

[0028] In some embodiments, the partition 120 comprises at least one bracket 124 arranged on the support plate 122, each bracket 124 comprises a pair of limiting plates 126 and a mounting plate 128 connected between the pair of limiting plates 126, and the mounting plate 128 is fixedly connected with the connecting rib 134. The bracket 124 can be substantially in H-shaped structure. The bracket 124 is used to provide positioning effect to the composite floor 110 and is fixedly connected with the connecting rib 134. The bracket 124 and the hooking member 132 are arranged staggered in the transverse direction X to avoid interference between the bracket 124 and the hooking member 132. The bracket 124 and the hooking member 132 can be arranged spaced apart in the longitudinal direction Y. The limiting plate 126 can be flush with the top surface of the composite floor 110 or protrude from the top surface of the composite floor 110 to provide reliable limiting effect.

[0029] With reference to Figures 1 to 3 In some embodiments, the device 100 further comprises two rib cages 140 (e.g. steel rib cages) arranged on both sides of the longitudinal direction Y of the composite floor 110, the reinforcing rib assembly has at least two protruding portions 116 protruding outwardly from both sides of the longitudinal direction Y of the composite floor 110 and fixedly connected with the two rib cages 140 respectively, and the longitudinal ends of the partition 120 are fixedly connected with the two rib cages 140 respectively. The rib cage 140 is used to provide support and fixing effect to the composite floor 110 and the partition 120, and together forms an integral module for subsequent pouring. Each longitudinal outer side of the composite floor 110 can protrude a plurality of protruding portions 116 of the reinforcing rib assembly, and the protruding portion 116 can be a part of the longitudinal rib 112.

[0030] With reference to Figure 6 In some embodiments, the rib cage 140 is provided with a positioning rib 142, and the partition 120 is fixedly connected with the positioning rib 142 through a U-shaped positioning sleeve 123. The partition 120 can comprise two L-shaped fixing frames 121 connected to both ends of the support plate 122, the L-shaped fixing frame 121 is overlapped on the top surface of the rib cage 140, the positioning rib 142 (e.g. steel rib) is arranged inside the rib cage 140 and a U-shaped positioning sleeve 123 is movably sleeved on the positioning rib 142, the U-shaped positioning sleeve 123 can comprise a U-shaped member and a top plate connected with the U-shaped member, the top plate is fixedly connected with the L-shaped fixing frame 121 through a fastener 125 (e.g. bolt), the bottom end of the U-shaped member is engaged with the positioning rib 142, and the L-shaped fixing frame 121 and the positioning rib 142 are constrained and fixed together through the U-shaped positioning sleeve 123.

[0031] With reference to Figure 2 and Figure 5In some embodiments, a composite floor 110 (e.g., the outermost composite floor 110 among a plurality of transversely arranged composite floor slabs 110) has an additional connecting groove 113 formed on a side facing away from the adjacent composite floor slabs. The reinforcing bar assembly includes an additional exposed portion located within the additional connecting groove 113. The device 100 also includes an additional hook 136 and an additional reinforcement cage (not shown) located transversely X-outward of the composite floor slab 110. One end of the additional hook 136 hooks onto the additional exposed portion 116 within the additional connecting groove 113, and the other end is fixed to the additional reinforcement cage. The additional hook 136 further secures the composite floor 110 to the additional reinforcement cage, further enhancing the support and fixation of the composite floor slab 110. This ensures that the entire device is fully connected and integrated after casting, thereby enhancing the overall strength of the device. The additional hook 136 may include a straight extension and a hook at one end of the straight extension. The additional hook 136 may be, for example, a single-elbow rebar. One end of the accessory hooking member 136 may be constrained within the additional connecting groove 113 .

[0032] refer to Figure 7 In some embodiments, the composite floor 110 is provided with a lifting mechanism 150, which includes a fixing sleeve 152 and a lifting ring 154 rotatably connected to the fixing sleeve 152. The fixing sleeve 152 may form a receiving slot 151, and the lifting ring 154 may be fixedly connected to a rotating block 153. The rotating block 153 cooperates with the receiving slot 151 to achieve a rotatable connection between the lifting ring 154 and the fixing sleeve 152. The provision of a rotatable lifting ring 154 allows construction workers to easily adjust the position and angle of the composite floor 110. In some embodiments, the fixing sleeve 152 extends into the composite floor 110 and is fixedly connected to the reinforcement bar assembly (e.g., by welding). This evenly distributes tension across the composite floor 110 and prevents the fixing sleeve 152 from falling off the composite floor 110. For example, the fixing sleeve 152 may be fixedly connected to the transverse reinforcement bar 114. Of course, in other embodiments, the fixing sleeve 152 may also be fixedly connected to the longitudinal reinforcement bar 112.

[0033] The following describes an assembly method of the prefabricated composite floor slab connection device 100 of the present invention (i.e., a method for connecting prefabricated composite floor slabs). The method comprises the following steps: Step 1: Arrange the partition 120 at a suitable position on the reinforcement cage 140 to facilitate the subsequent lifting and installation of the composite floor slab 110. Tie and weld the positioning ribs 142 inside the reinforcement cage 140, and use U-shaped positioning sleeves 123 and fasteners 125 to constrain and fix the L-shaped fixing frames 121 at both ends of the support plate 122 of the partition 120 to the positioning ribs 142, thereby achieving the installation of the partition 120 on the reinforcement cage 140. Step two, use lifting mechanism 150 to transport composite floor 110, the operator can connect the hook of the crane equipment on the lifting ring 154, use the lifting ring 154 to assist in carrying, the lifting ring 154 can rotate on the fixed sleeve 152, the position and angle of the staff to adjust the composite floor 110, so that two composite floor 110 is placed in the two sides isolated by the bracket 124 on the partition 120, ensure that the protruding part 116 of the reinforcing bar assembly of the composite floor 110 and the reinforcement cage 140 are in full contact, and use fine iron wire to bundle; Step three, before pouring, two composite floor 110 and partition 120 need to be positioned and connected, the exposed part of the reinforcing bar assembly in the connecting groove 111 of the composite floor 110 is arranged on the hooking piece 132, so that the connecting bar 134 penetrates the hooking part of the two hooking pieces 132 on each pair of the two composite floor 110, so that the two composite floor 110 are connected, and then the connecting bar 134 is welded on the bracket 124, so as to complete the connection; on the side of the two composite floor 110 away from each other, the additional exposed part of the reinforcing bar assembly in the additional connecting groove 113 is connected with the additional reinforcement cage by using the additional hooking piece 136; Step four, after the composite floor 110, the reinforcement cage 140 and the partition 120 are fully connected, pouring can be carried out.

[0034] The working principle of the present application is described as follows: When the composite floor 110 is laid, first, the partition piece 120 is arranged according to the specification of the composite floor 110, the two ends of the supporting plate 122 of the partition piece 120 are overlapped on the reinforcement cage 140 through the L-shaped fixing frame 121, in order to improve the tightness of the connection between the L-shaped fixing frame 121 and the reinforcement cage 140, the positioning rib 142 is arranged in the reinforcement cage 140, the positioning rib 142 is connected with the reinforcement cage 140 by welding or binding, then the positioning rib 142 is connected with the L-shaped fixing frame 121 by the U-shaped positioning sleeve 123 and the fastener 125, so that the integration degree of the partition piece 120 and the reinforcement cage 140 is high after later pouring. Then the composite floor 110 can be installed, the composite floor 110 is moved to a suitable position by the crane, and it is ensured that the composite floor 110 is in contact with the bracket 124 on the partition piece 120, the protruding part 116 of the reinforcing rib assembly extending out of the composite floor 110 is in full contact with the reinforcement cage 140 and is welded or bound together. The lifting ring 154 arranged on the composite floor 110 is used for carrying the composite floor 110, the lifting ring 154 can rotate on the fixing sleeve 152 through the cooperation of the accommodating groove 151 and the rotating block 153, so that the angle and position can be adjusted in time during the carrying process. In order to improve the safety and stability of the device, the lifting ring 154 is connected to the reinforcing rib assembly inside the composite floor 110 through the fixing sleeve 152, so that the tension is evenly distributed at each position of the composite floor 110, and the fixing sleeve 152 is prevented from falling off the composite floor 110 to cause a safety accident.

[0035] When the two composite floors 110 are in place, the hooking piece 132 is arranged on the exposed part of the reinforcing rib assembly in the connecting groove 111 of the composite floor 110, and the same connecting rib 134 is inserted into the ends of the two hooking pieces 132 of each pair and close to each other, so that the two hooking pieces 132 are connected, and the connecting rib 134 is welded on the bracket 124, so that the connection of the two composite floors 110 and the partition piece 120 is realized. As for the side of the two composite floors 110 away from each other, the additional hooking piece 136 can be hung on the additional exposed part of the reinforcing rib assembly in the additional connecting groove 113, and the additional hooking piece 136 can be connected with the additional reinforcement cage, so that the composite floor 110, the reinforcement cage 140 and the partition piece 120 are fully connected into an integral whole after pouring, and the overall strength of the device is strengthened.

[0036] In summary, the present application can achieve the following beneficial effects: In the present application, the two composite floors are separated by the bracket on the supporting plate of the partition piece, so that mutual extrusion and collision between the two composite floors during transportation and installation is avoided, damage to the composite floor is avoided, the reinforcing rib assemblies in the two composite floors are connected together by the connecting rib and at least one pair of hooking pieces, the stability of the two composite floors in the installation state is maintained, and the connection strength between the two composite floors and the partition piece is improved after later pouring.

[0037] In the application, the partition can be used as a positioning point before the two composite floors are laid, so that the construction personnel can hold the composite floor by the supporting plate of the partition, and the two composite floors are isolated by the supporting frame, so that the pouring gap between the two composite floors is ensured, and the connection between the two composite floors and the reinforcement cage is stable.

[0038] In the application, in order to facilitate the staff to carry the composite floor, the connecting point of the hoisting mechanism is arranged on the composite floor during hoisting, and the hoisting mechanism comprises a fixing sleeve and a lifting ring rotationally connected with the fixing sleeve, so that the user can adjust the direction and angle in time during hoisting. In order to improve the safety and stability of the device, the lifting ring is connected with the reinforcing rib assembly in the composite floor through the fixing sleeve, so that the tension is uniformly distributed at each position of the composite floor, and the fixing sleeve is prevented from falling off from the composite floor to cause a safety accident.

[0039] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope of the embodiments disclosed by the application (including claims) is limited to these examples; under the idea of the embodiments of the application, the technical features of the above embodiments or different embodiments can also be combined, and there are many other changes of different aspects of the embodiments of the application as described above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the embodiments of the application shall be included in the protection scope of the embodiments of the application.

Claims

1. A prefabricated composite floor connection device, characterized in that: include: At least two composite floor slabs having reinforcing rib assemblies, each of the composite floor slabs having a connecting groove formed on a side close to an adjacent composite floor slab, the reinforcing rib assembly having an exposed portion located in the connecting groove; a partition, the partition being at least partially disposed between the two composite floor slabs and separating the two composite floor slabs relative to each other; A connecting assembly connects the two composite floor slabs and the separator, and includes at least one pair of hooking members and connecting bars connected to the separator, wherein the first ends of the two hooking members of each pair are respectively hooked to the exposed portions in the connecting grooves of the two composite floor slabs, and the second ends are both hooked to the connecting bars.

2. The device according to claim 1, characterized in that At least two of the composite floor slabs are arranged in the transverse direction; the composite floor slabs form a plurality of connecting grooves arranged in the longitudinal direction, and the connecting assembly includes a plurality of pairs of hooking members arranged in the longitudinal direction and corresponding to the plurality of connecting grooves respectively; the exposed portion and the connecting ribs are arranged in the longitudinal direction, and each of the hooking members is arranged in the transverse direction.

3. The device according to claim 1, characterized in that The first end of the hooking member is restricted in the connecting groove.

4. The device according to claim 2, characterized in that The partition comprises a supporting plate and at least one pair of limiting plates connected to the supporting plate. The composite floor is partially supported on the supporting plate. The two limiting plates of each pair are respectively engaged with surfaces of the two composite floor.

5. The device according to claim 4, characterized in that The separator includes at least one bracket arranged on the supporting plate, each of the brackets includes a pair of limiting plates and a mounting plate connected between the pair of limiting plates, and the mounting plate is fixedly connected to the connecting rib.

6. The device according to claim 5, characterized in that The bracket and the hooking member are staggered in a transverse direction.

7. The device according to claim 1, characterized in that At least two of the composite floor slabs are arranged in a transverse direction; the device also includes two reinforcement cages located on both longitudinal sides of the composite floor slab, the reinforcement rib assembly has at least two protruding portions protruding outward from both longitudinal sides of the composite floor slab and respectively fixed to the two reinforcement cages, and the longitudinal ends of the partition are respectively fixed to the two reinforcement cages.

8. The device according to claim 7, characterized in that The rib cage is provided with positioning ribs, and the separator is fixed to the positioning ribs via a U-shaped positioning sleeve.

9. The device according to claim 7, characterized in that An additional connecting groove is formed on the side of the composite floor away from the adjacent composite floor, and the reinforcement bar assembly has an additional exposed portion located in the additional connecting groove; the device also includes an additional hooking member and an additional reinforcement cage located on the transverse outer side of the composite floor, one end of the additional hooking member is hooked to the additional exposed portion, and the other end is fixed to the additional reinforcement cage.

10. The device according to claim 1, characterized in that The composite floor is provided with a lifting mechanism, which includes a fixing sleeve and a lifting ring rotatably connected to the fixing sleeve. The fixing sleeve extends into the interior of the composite floor and is fixedly connected to the reinforcement assembly.

Images