A laminated slab with quick dismounting and free leveling layer

Abstract

The application provides a quick dismounting and free leveling laminated slab, which comprises a prefabricated bottom plate arranged horizontally, a steel bar layer arranged horizontally in the prefabricated bottom plate, the steel bar layer is composed of a plurality of embedded steel bars arranged orthogonally along a first direction and a second direction, and a plurality of shear keys partially embedded in the prefabricated bottom plate, the shear keys have a through cavity, the central axis of the cavity is parallel to the first direction and / or the second direction, and the top ends of the plurality of shear keys away from the prefabricated bottom plate are kept flush. The application can improve the efficiency of the whole process, including greatly improving the factory production efficiency and greatly improving the construction efficiency on the construction site, and embodies the industrialization advantage of the application.

Description

Technical Field

[0001] This invention belongs to the field of building technology, and in particular relates to a composite board that can be quickly assembled and disassembled and requires no leveling layer. Background Technology

[0002] Composite slabs refer to building floor slabs that are divided into two parts along their thickness: a precast base slab with bottom reinforcement, or simply precast slab, and an upper cast-in-place reinforced concrete layer called the cast-in-place panel. After long-term construction, the inventors have found that existing composite slab construction methods often encounter problems such as difficulties in pipe laying, difficulty in leveling the cast-in-place concrete, and excessive support scaffolding at the bottom.

[0003] Firstly, as a standardized construction procedure, there is currently no composite slab that eliminates the need for a leveling layer, representing a blind spot in existing technology. Secondly, truss reinforcement is also widely used in truss reinforcement composite slabs, and no other structure has been found to replace it. Thirdly, composite slabs are prefabricated components with fixed connections; reports of composite slabs using detachable components are rare. After years of dedicated research in this field, the inventors, having identified these technological blind spots, innovatively proposed a quick-assembly and leveling-layer-free composite slab. This quick-assembly and leveling-layer-free composite slab not only solves the problems of existing technologies but also fills a technological gap. Summary of the Invention

[0004] The purpose of this application is to provide a composite slab that can be quickly assembled and disassembled and requires no leveling layer. The composite slab is provided with multiple shear keys of equal height. The top of the shear keys forms a horizontal plane that serves as a leveling reference, thereby replacing the leveling layer in traditional construction. By eliminating the leveling layer, the load on the building floor slab is reduced. Furthermore, the spaced shear keys provide ample space for pipelines to be laid on the construction site, solving the problem of slowing down the construction progress caused by truss reinforcement obstructing pipelines.

[0005] This application proposes a quick-assembly and leveling-free composite slab, comprising: a horizontally arranged precast base slab; a layer of reinforcing bars horizontally laid inside the precast base slab; the reinforcing bar layer consisting of multiple pre-embedded reinforcing bars orthogonally arranged along a first direction and a second direction; multiple shear keys partially embedded in the precast base slab; each shear key having a through cavity, the central axis of which is parallel to the first direction and / or the second direction; and the tops of the multiple shear keys away from the precast base slab remaining flush.

[0006] According to one embodiment provided in this application, the plurality of shear keys are arranged sequentially at intervals in a first direction and / or a second direction.

[0007] According to one embodiment provided in this application, the quick-assembly and leveling-free composite plate further includes a hoisting mechanism, wherein the hoisting mechanism and the shear key are directly or indirectly detachable.

[0008] According to one embodiment provided in this application, the quick-assembly and leveling-free composite plate further includes: at least one first connecting member, wherein the first connecting member establishes a detachable connection with the top end of the plurality of shear keys along a first direction.

[0009] According to one embodiment provided in this application, the quick-assembly and leveling-free composite plate further includes: an assembly clip, which is used to engage the first connecting component with the top end, so that the two form a detachable connection.

[0010] According to one embodiment provided in this application, the assembly clip includes: a main body, the main body including: a first engaging member located below the top end, and a second engaging member located above the first connecting member; a locking part located at one or both ends of the first engaging member and the second engaging member, the locking part being used to engage the first connecting member with the top end by locking the first engaging member and the second engaging member from above and below.

[0011] According to one embodiment provided in this application, one end of the first engaging member and the second engaging member, which do not have the locking portion, are connected and form a whole.

[0012] According to one embodiment provided in this application, the quick-assembly and leveling-free composite plate further includes: a detachable screw; the detachable screw is disposed in a pre-set circular hole on the first connecting component and the top end, and the first connecting component and the top end are detachably connected by screwing into the circular hole and cooperating with a nut.

[0013] According to one embodiment provided in this application, the quick-assembly and leveling-free composite plate further includes: at least one second connecting member, the second connecting member being connected to a plurality of first connecting members along a second direction.

[0014] According to one embodiment provided in this application, the second connecting member is located below the first connecting member.

[0015] The beneficial effects of this invention are:

[0016] The composite slab of this invention employs a detachable connection component. This connection component prevents deformation or camber of the composite slab. The lifting rings on the connection component assist in hoisting. When installing pipelines, the quick-release and removal of the connection component frees up construction space for workers, solving the problems associated with permanent truss reinforcement in existing technologies.

[0017] The present invention also provides more convenient assembly clips for detachable connecting components, thereby further improving the construction efficiency of workers and saving the construction time of laying composite slabs on the construction site.

[0018] The floor slabs constructed using the composite slab of this invention eliminate the need for an additional leveling layer, reducing a construction step and improving construction efficiency. This invention enhances overall process efficiency, significantly increasing factory production and construction site efficiency, demonstrating its industrial advantages.

[0019] Since the leveling layer is a permanent construction measure and has nothing to do with structural safety, eliminating the leveling layer can reduce the load on the building floor slab and increase the net height of each floor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the composite plate with quick assembly / disassembly and no leveling layer in Example 1.

[0022] Figure 2 This is a perspective view of the composite plate of the quick-assembly and leveling-free layer in Example 1.

[0023] Figure 3 This is a perspective view of the composite plate of the quick-assembly and leveling-free layer in Example 1.

[0024] Figure 4 This is a perspective view of the composite plate with quick assembly / disassembly and no leveling layer as described in Example 2.

[0025] Figure 5 This is a perspective view of the composite plate with quick assembly / disassembly and no leveling layer as described in Example 2.

[0026] Figure 6 This is a perspective view of the composite plate with quick assembly / disassembly and no leveling layer as described in Example 2.

[0027] Figure 7 This is a perspective view of the composite plate of the quick-assembly and leveling-free layer in Example 3.

[0028] Figure 8 This is a perspective view of the composite plate of the quick-assembly and leveling-free layer in Example 3.

[0029] Figure 9 This is a schematic diagram of pipeline laying.

[0030] Explanation of icon numbers:

[0031] 1-Precast base plate;

[0032] 2-Reinforcing steel layer;

[0033] 3-Shear Key

[0034] 4-First connecting component;

[0035] 5-Removable screw;

[0036] 6- Lifting mechanism;

[0037] 7-Second connecting rod;

[0038] 8-First card assembly;

[0039] 9-Second card assembly;

[0040] 10-Locking part;

[0041] 11-Pipeline. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "linking," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection (i.e., a direct connection), an indirect connection through an intermediate medium (i.e., an indirect connection), or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Exemplary Implementation

[0046] This embodiment proposes a quick-assembly and leveling-free composite slab, which includes: a horizontally arranged precast base slab 1; a steel reinforcement layer 2 horizontally laid inside the precast base slab 1; the steel reinforcement layer 2 is composed of multiple pre-embedded steel bars arranged orthogonally along a first direction and a second direction; multiple shear keys 3 partially embedded in the precast base slab 1; each shear key 3 has a through cavity, the central axis of which is parallel to the first direction and / or the second direction; and the tops of the multiple shear keys 3 away from the precast base slab 1 are flush with each other.

[0047] The shear key 3, which has a through cavity, can be made of square steel pipes cut into multiple sections. The central axis of the cavity inside the shear key 3 is parallel to the first direction and / or the second direction. That is, the shear key 3 is placed horizontally on the horizontal plane. When the pre-embedded steel bars are laid along the first and second directions, they can be easily inserted into the cavity of the shear key 3, which improves the efficiency of manufacturing the precast base slab 1. Compared with the precast base slab 1 manufactured when the shear key 3 is placed vertically on the horizontal plane, the horizontally placed shear key 3 only needs to avoid the pre-embedded steel bars in one direction, and the pre-embedded steel bars can be inserted inside it in the other direction and formed into a whole by pouring concrete. This improves the connection strength between the shear key 3 and the precast base slab 1, and also improves the overall structural integrity and strength of the composite slab that is quick to assemble and disassemble and does not require leveling layers.

[0048] Optionally, the shear key 3 with a through cavity can also be made by cutting a steel pipe with a cross-section of other shapes. The square steel pipe mentioned above is only one of many optional options and is not a limitation on the structure of the shear key 3 or a restriction on the scope of protection.

[0049] In this exemplary embodiment, the plurality of shear keys 3 are arranged sequentially at intervals in a first direction and / or a second direction. When the plurality of shear keys 3 are arranged at intervals in the first direction, they are arranged in columns in the precast base slab 1; when the plurality of shear keys 3 are arranged at intervals in the second direction, they are arranged in rows in the precast base slab 1; when the plurality of shear keys 3 are arranged sequentially at intervals in the first and second directions, they are arranged in an array in the precast base slab 1. The above intervals are preferably equal, but the intervals and arrangement can also be customized according to construction requirements.

[0050] In this exemplary embodiment, the quick-assembly and leveling-free composite slab further includes a hoisting mechanism 6, which is directly or indirectly detachably connected to the shear key. The hoisting mechanism 6 can be constructed from rigid or flexible hoistable accessories. Hoistable accessories refer to accessories that can be fixed to hoisting equipment at the construction site. Hoisting equipment at the construction site often uses hooks to connect to the object being hoisted; therefore, hoistable accessories are often metal lifting rings or steel cables, or non-metallic ropes. Furthermore, the hoisting mechanism 6 can also be a metal soft lock with a locking mechanism. Utilizing the locking feature of the metal soft lock, it is detachably connected to the shear key 3, and then the metal soft lock is hung on the hook for hoisting operations. This configuration is not only convenient to operate, but the metal soft lock is also very secure, providing strong safety at the construction site.

[0051] In this exemplary embodiment, the quick-assembly and leveling-free composite slab further includes at least one first connecting component 4, which establishes a detachable connection between the first connecting component 4 and the top ends of the plurality of shear keys 3 along a first direction. The first connecting component 4 can be made of any type of steel, such as angle steel, H-beam steel, or square steel pipe. The first connecting component 4, connecting the plurality of shear keys 3, enhances the structural strength of the precast base slab 1 in the first direction, preventing deformation and arching of the precast base slab 1 along the first direction. Furthermore, the first connecting component 4 also facilitates handling.

[0052] This exemplary embodiment provides two connection methods between the first connecting component 4 and the top of the shear key 3. The first method uses an assembly clip to detachably connect the two, and the second method uses a drilled hole to insert a screw for detachable connection.

[0053] First, the assembly clip is used to engage the first connecting component 4 with the top end, so that the two form a detachable connection. The assembly clip includes a main body portion and a locking portion 10; the main body portion includes: a first engaging member 8 located below the top end, and a second engaging member 9 located above the first connecting component 4; the locking portion 10 is located at one or both ends of the first engaging member 8 and the second engaging member 9, and the locking portion 10 is used to engage the first connecting component 4 with the top end by locking the first engaging member 8 and the second engaging member 9 up and down. One ends of the first engaging member 8 and the second engaging member 9 without the locking portion 10 are connected and form an integral body, and the first engaging member 8 and the second engaging member 9 as a whole are in an "L" shape.

[0054] Second, the detachable screw 5 is arranged in a circular hole preset on the first connecting component 4 and the top end, and the first connecting component 4 and the top end form a detachable connection by screwing into the circular hole and cooperating with a nut.

[0055] In this exemplary embodiment, a hoisting mechanism 6 is installed on the first connecting component 4. The hoisting mechanism 6 establishes an indirect detachable connection with the shear key 3 through the first connecting component 4 as an intermediate medium. The hoisting mechanism 6 can quickly penetrate into a hook to lift the integral laminated slab with quick disassembly and without a leveling layer, improving the construction efficiency.

[0056] In this exemplary embodiment, a second connecting component 7 is further included, and the second connecting component 7 is connected to multiple first connecting components 4 along a second direction. Optionally, the second connecting component 7 is located below the first connecting component 4. The second connecting component 7 can enhance the structural strength of the precast floor slab 1 in the second direction and prevent the precast floor slab 1 from deforming and arching in the second direction. Specific Embodiment 1

[0058] Figures 1 to 3 Three schematic diagrams of the laminated slab with quick disassembly and without a leveling layer in Embodiment 1 are shown. The laminated slab with quick disassembly and without a leveling layer includes a precast floor slab 1, a steel bar layer 2, and multiple shear keys 3. The steel bar layer 2 is formed by arranging multiple embedded steel bars orthogonally along a first direction and a second direction. When arranging the embedded steel bars, the shear keys 3 are placed in the steel bar layer 2. The through cavities in the shear keys 3 are parallel to the first direction, and the embedded steel bars in the same direction can pass through the shear keys 3. After laying, a pouring cavity is constructed around the steel bar layer 2 by using a formwork, and a precast floor slab 1 is formed by pouring concrete. The precast floor slab 1 only covers a part of the shear keys 3, and the tops of multiple shear keys 3 away from the precast floor slab 1 are kept flush as a leveling reference surface.

[0059] It should be noted that in this embodiment, the length direction of the prefabricated base plate 1 is taken as the first direction, and the width direction is taken as the second direction. To clearly show the details of the shear key 3 and its first connecting component 4, except... Figure 1 The reinforcement layer 2 is omitted in the attached drawings. This is also true for the following embodiments, so it will not be described in detail.

[0060] Figure 1 The hoisting mechanism 6 is inserted into the four shear keys 3 located at the corners. The hoisting mechanism 6 uses a metal soft lock (also known as a soft lock ring, ring lock, etc.) with a locking device. The metal soft lock has the advantages of simple installation, quick disassembly, and high safety performance. The worker only needs to insert it into the cavity of the shear key 3 and lock it, completing the direct and detachable connection between the hoisting mechanism 6 and the shear key 3. Then, the hoisting mechanism 6 is placed in the hook for hoisting operations. After hoisting is completed, the metal soft lock only needs to be unlocked. Figure 1 The number of hoisting mechanisms 6 shown is four, located at the four corners. This embodiment is similar to... Figure 1 The number and location of the hoisting mechanism 6 are not limited. Those skilled in the art can adjust the number and location of the hoisting mechanism 6 according to the actual construction scenario.

[0061] In this embodiment, the central axis of the cavity of the shear key 3 and the first connecting component 4 are both parallel to the first direction. To facilitate their connection, therefore... Figure 1 The anti-shear key 3 shown has a through hole at its top, into which a detachable screw 5 can be screwed. Figure 2 for Figure 1 A schematic diagram showing the first connecting component 4 on the composite plate. It is easy to see that the first connecting component 4 also has the same through hole at the corresponding position. By mounting the first connecting component 4 above the shear key 3 in the same direction and aligning the through holes of both, inserting the detachable threaded rod, and then screwing in the nut, the detachable connection between the first connecting component 4 and the shear key 3 is completed. Figure 2 The first connecting component 4 is equipped with a lifting mechanism 6, which is made of metal lifting rings. The metal lifting rings are welded to the first connecting component 4, and the lifting mechanism 6 establishes an indirect, detachable connection with the shear key 3 through the first connecting component 4 as an intermediate medium. The lifting mechanism 6 is used to facilitate the insertion of the hook to lift the composite slab of the quick-assembly and leveling-free layer as a whole, thereby improving construction efficiency.

[0062] Figure 3 What is displayed is Figure 2 Another preferred embodiment, Figure 3 Is Figure 2A second connecting member 7 is further provided on the composite slab shown. The second connecting member 7 is connected to multiple first connecting members 4 along a second direction. The second connecting member 7 can enhance the structural strength of the precast base slab 1 in the second direction and prevent the precast base slab 1 from deforming and arching along the second direction. Optionally, the second connecting member 7 is located below the first connecting member 4, and the second connecting member 7 is connected to the first connecting member 4 by screwing in a detachable screw 5. More preferably, before being set onto the shear key 3, the first connecting member 4 and the second connecting member 7 can be pre-connected together by screws to form a whole and be quickly set onto the shear key 3. Specific Implementation Example 2

[0064] Figures 4 to 6 Three schematic diagrams of the quick-assembly and leveling-free composite slab in Embodiment 2 are shown. The quick-assembly and leveling-free composite slab includes a precast base slab 1, a reinforcing steel layer 2, and multiple shear keys 3. The reinforcing steel layer 2 is composed of multiple pre-embedded reinforcing bars arranged orthogonally along a first direction and a second direction. When laying the pre-embedded reinforcing bars, the shear keys 3 are placed in the reinforcing steel layer 2. The through cavity in the shear keys 3 is parallel to the second direction, and the pre-embedded reinforcing bars in the same direction can be inserted into the shear keys 3. After the laying is completed, a casting cavity is constructed around the reinforcing steel layer 2 using a surrounding plate. A precast base slab 1 is formed by pouring concrete. The precast base slab 1 only covers the portion of the shear keys 3. The tops of the multiple shear keys 3 that are furthest from the precast base slab 1 are kept flush as a leveling reference surface.

[0065] Compared with specific embodiment 1 Figures 1 to 3 The difference is that the through cavity in the shear key 3 is parallel to the second direction, and the pre-embedded steel bars in the same direction can be inserted into the shear key 3. The central axis of the cavity of the shear key 3 is parallel to the second direction, and the first connecting component 4 is parallel to the first direction. Therefore, the central axis of the cavity of the shear key 3 is orthogonal to the first connecting component 4.

[0066] In this embodiment 2, a screw-type detachable connection is still used. The configuration of the first connecting component 4, the second connecting component 7, and the lifting mechanism 6 is the same as in embodiment 1, so it will not be described in detail. It is easy to see that the same through holes are provided at the top of the shear key 3 and at corresponding positions on the first connecting component 4. The first connecting component 4 is mounted above the shear key 3 in the same direction and the through holes of both are aligned. After inserting the detachable threaded rod and screwing in the nut, the detachable connection between the first connecting component 4 and the shear key 3 is completed. Figure 5The first connecting component 4 is equipped with a lifting mechanism 6, which is made of metal lifting rings. The metal lifting rings are welded to the first connecting component 4, and the lifting mechanism 6 establishes an indirect, detachable connection with the shear key 3 through the first connecting component 4 as an intermediate medium. The lifting mechanism 6 is used to facilitate the insertion of the hook to lift the composite slab of the quick-assembly and leveling-free layer as a whole, thereby improving construction efficiency.

[0067] Figure 6 What is displayed is Figure 5 Another preferred embodiment, Figure 6 Is Figure 5 A second connecting member 7 is further provided on the composite slab shown. The second connecting member 7 is connected to multiple first connecting members 4 along a second direction. The second connecting member 7 can enhance the structural strength of the precast base slab 1 in the second direction and prevent the precast base slab 1 from deforming and arching along the second direction. Optionally, the second connecting member 7 is located below the first connecting member 4, and the second connecting member 7 is connected to the first connecting member 4 by screwing in a detachable screw 5. More preferably, before being set onto the shear key 3, the first connecting member 4 and the second connecting member 7 can be pre-connected together by screws to form a whole and be quickly set onto the shear key 3. Specific Implementation Example 3

[0069] Figure 7 and Figure 8 Two schematic diagrams of the quick-assembly and leveling-free composite slab in Embodiment 3 are shown. The quick-assembly and leveling-free composite slab in Embodiment 3 includes a precast base slab 1, a reinforcing steel layer 2, and multiple shear keys 3. The reinforcing steel layer 2 is composed of multiple pre-embedded reinforcing bars arranged orthogonally along a first direction and a second direction. During the installation of the pre-embedded reinforcing bars, the shear keys 3 are placed within the reinforcing steel layer 2. The through-cavity in the shear keys 3 is parallel to the second direction, and pre-embedded reinforcing bars in the same direction can be inserted into the shear keys 3. After installation, a casting cavity is constructed around the reinforcing steel layer 2 using a surrounding plate. Concrete is poured to form a precast base slab 1. The precast base slab 1 only covers the portion of the shear keys 3, and the tops of the multiple shear keys 3 furthest from the precast base slab 1 are kept flush as a leveling reference surface.

[0070] Compared with specific embodiment 1 Figures 1 to 3 The difference is that the through cavity in the shear key 3 is parallel to the second direction, and the pre-embedded steel bars in the same direction can be inserted into the shear key 3. The central axis of the cavity of the shear key 3 is parallel to the second direction, and the first connecting component 4 is parallel to the first direction. Therefore, the central axis of the cavity of the shear key 3 is orthogonal to the first connecting component 4.

[0071] Unlike Embodiments 1 and 2, the shear key 3 and the first connecting component 4 are detachably connected using an assembly clamp. The reason for using the assembly clamp is that although the screw connection provides sufficient strength, workers must screw a nut into the cavity of the shear key 3 and tighten it with a tool during construction. Furthermore, through holes must be pre-drilled on the top of the shear key 3 and the first connecting component 4. This connection method adds extra steps and limits the efficiency of worker operations. Therefore, using the assembly clamp avoids these operations and eliminates the need to drill through holes on the top of the shear key 3 and the first connecting component 4. This undoubtedly further improves the efficiency of worker operations.

[0072] The assembly clip is used to engage the first connecting component 4 with the top end, forming a detachable connection between the two. The assembly clip includes a main body and a locking part 10; the main body includes a first engaging component 8 located below the top end and a second engaging component 9 located above the first connecting component 4; the locking part 10 is located at one or both ends of the first engaging component 8 and the second engaging component 9, and the locking part 10 is used to engage the first connecting component 4 with the top end by locking the first engaging component 8 and the second engaging component 9 from above and below.

[0073] Figure 7 The assembly clip shown has locking parts 10 at both ends. The locking part 10 is composed of a screw and a nut. After inserting the first engaging part 8 and the second engaging part 9 below the top and below the first connecting part 4 respectively, the first engaging part 8 and the second engaging part 9 are engaged by inserting the screw and tightening the nut, thereby completing the detachable connection between the shear key 3 and the first connecting part 4.

[0074] To facilitate workers' use of assembly clamps, Figure 8 A preferred embodiment is shown in which the first engaging member 8 and the second engaging member 9, without the locking part 10, are connected at one end to form a whole, and the first engaging member 8 and the second engaging member 9 are in the shape of a "U". This allows the worker to hold the main body with one hand and insert it into the upper and lower ends of the shear key 3 and the first connecting member 4, while holding the screw with the other hand and inserting it into the other end of the main body. Then, both hands can be freed to tighten the nut. Furthermore, the lifting mechanism 6 in this embodiment uses a lifting method that combines a metal soft lock and a metal lifting ring, and provides workers with more optional lifting methods through direct and indirect detachable connections, further improving the safety of the lifting operation.

[0075] In all three specific embodiments described above, the first connecting component 4 and the second connecting component 7 can be installed before the finished product leaves the factory. By using screws or assembly clamps, the overall process efficiency can be improved, including significantly increasing factory production efficiency and construction site efficiency, demonstrating the industrial advantages of this embodiment. During on-site hoisting of components, the composite slab is lifted using the connecting hook and hoisting mechanism 6, and after workers lay it in the corresponding position, the first connecting component 4 (with the second connecting component 7) is completely removed. The disassembled composite slab is as follows: Figure 9 As shown, this design creates construction space for the installation of pipeline 11, overcoming the shortcomings of existing permanent truss reinforcement. When pouring concrete on the composite slab, the top of the shear key 3 can be used as a leveling reference surface, reducing a leveling step in the construction process and improving efficiency. Since the leveling layer is a permanent construction measure and has no relation to structural safety, eliminating it reduces the floor load and increases the net height of each floor.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite panel that requires quick assembly and disassembly and no leveling layer, characterized in that, The composite slab with quick assembly / disassembly and no leveling layer includes: a horizontally arranged precast base slab; A layer of reinforcing bars is laid horizontally inside the precast base slab; the reinforcing bar layer consists of multiple pre-embedded reinforcing bars arranged orthogonally along a first direction and a second direction; Multiple shear keys are partially embedded in the precast base slab; each shear key has a through cavity, the central axis of which is parallel to a first direction and / or a second direction; the tops of the multiple shear keys away from the precast base slab are flush with each other; each shear key is cut from a steel pipe, and the pre-embedded reinforcing bars arranged along the first or second direction pass through the cavity; At least one first connecting member, wherein the first connecting member establishes a detachable connection with the top of the plurality of shear keys along a first direction; An assembly clip is used to engage the top end of the first connecting component with the anti-shear key, so that the two form a detachable connection. The assembly fastener includes: The main body includes: a first engaging member located below the top end, and a second engaging member located above the first connecting member; A locking part is located at one or both ends of the first engaging member and the second engaging member. The locking part is used to engage the first connecting member with the top end of the shear key by locking the first engaging member and the second engaging member from above and below.

2. The composite plate with quick assembly / disassembly and no leveling layer as described in claim 1, characterized in that, The plurality of shear keys are arranged sequentially at intervals in a first direction and / or a second direction.

3. The composite plate with quick assembly / disassembly and no leveling layer as described in claim 1, characterized in that, The quick-assembly and leveling-free composite plate also includes: A hoisting mechanism, wherein a direct or indirect detachable connection is established between the hoisting mechanism and the shear key.

4. The composite slab with quick assembly / disassembly and no leveling layer as described in claim 1, characterized in that, The first engaging member and the second engaging member, which do not have the locking part, are connected at one end and form a whole.

5. The composite slab with quick assembly / disassembly and no leveling layer as described in any one of claims 1-4, characterized in that, The quick-assembly and leveling-free composite plate also includes: At least one second connecting member, which is connected to a plurality of first connecting members along a second direction.

6. The composite plate with quick assembly / disassembly and no leveling layer as described in claim 5, characterized in that, The second connecting component is located below the first connecting component.

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