CN116005869A - Laminated slab with quick assembly disassembly and leveling-free layer - Google Patents

Abstract

The invention provides a laminated plate of a quick assembly disassembly and leveling-free layer, which comprises the following components: a prefabricated bottom plate which is horizontally arranged; the reinforcement layer is horizontally paved in the prefabricated bottom plate; the steel bar layer is composed of a plurality of embedded steel bars which are orthogonally arranged along a first direction and a second direction; and a plurality of shear keys partially embedded in the prefabricated bottom plate; the shear key is provided with a through cavity, and the central axis of the cavity is parallel to the first direction and/or the second direction; the plurality of shear keys remain flush between the top ends of the plurality of shear keys remote from the pre-fabricated deck. The invention can improve the efficiency of the whole process, and can greatly improve the production efficiency of factories and the construction efficiency of construction sites, thereby embodying the industrialized advantages of the invention.

Description

Laminated slab with quick assembly disassembly and leveling-free layer

Technical Field

The invention belongs to the technical field of buildings, and particularly relates to a laminated slab capable of being quickly disassembled and assembled and a leveling layer is avoided.

Background

The laminated slab refers to a floor slab of a building divided into two parts along the thickness direction, wherein the bottom is a prefabricated bottom plate or a prefabricated plate for short provided with bottom reinforcing steel bars, and the upper part is a cast-in-situ reinforced concrete layer called a cast-in-situ panel. After long-term construction, the inventor discovers that the problems of difficult pipeline laying, difficult leveling of cast-in-place concrete, excessive scaffold construction at the bottom and the like frequently occur in the existing superimposed sheet construction method.

First, as one of the standardized procedures for construction, no superimposed sheet without building screed has been proposed or used in the art, which is a blind spot in the prior art. Secondly, truss ribs are also widely used as truss rib superimposed sheets, and other structures are not known at present for replacing truss ribs. Thirdly, the laminated slab is a prefabricated component, the structures of the laminated slab are all connected in a fixed mode, and the laminated slab adopting a detachable assembly is rarely reported. The inventor innovatively provides a laminated plate with quick disassembly and free of a leveling layer after finding the blind area in the field for many years, and the laminated plate with the quick disassembly and free of the leveling layer fills the technical blank in the prior art while solving the problems in the prior art.

Disclosure of Invention

The utility model aims at providing a quick assembly disassembly and exempt from superimposed sheet of leveling layer, this superimposed sheet sets up a plurality of shear keys of contour, and the top of shear key forms a horizontal plane that is used for as the leveling reference, replaces the building leveling layer in the traditional construction by this, plays the effect of reducing building floor's load through cancelling the leveling layer; and a surplus space for penetrating the pipeline on the construction site is reserved among the shear keys arranged at intervals, so that the problem of slowing down the construction progress caused by the fact that the truss ribs obstruct the penetrating pipeline is solved.

The application provides a quick assembly disassembly and exempt from superimposed sheet of screed-coat, quick assembly disassembly and exempt from superimposed sheet of screed-coat include: a prefabricated bottom plate which is horizontally arranged; the reinforcement layer is horizontally paved in the prefabricated bottom plate; the steel bar layer is composed of a plurality of embedded steel bars which are orthogonally arranged along a first direction and a second direction; a plurality of shear keys partially embedded in the prefabricated floor; the shear key is provided with a through cavity, and the central axis of the cavity is parallel to the first direction and/or the second direction; the plurality of shear keys remain flush between the top ends of the plurality of shear keys remote from the pre-fabricated deck.

According to one embodiment provided herein, the plurality of shear keys are sequentially arranged at intervals in the first direction and/or the second direction.

According to an embodiment that this application provided, the superimposed sheet of quick assembly disassembly and exempt from the screed still includes: and the hoisting mechanism is connected with the shear key in a direct or indirect detachable way.

According to an embodiment that this application provided, the superimposed sheet of quick assembly disassembly and exempt from the screed still includes: at least one first connection member establishing a detachable connection between the first connection member and the top ends of the plurality of shear keys in a first direction.

According to an embodiment that this application provided, the superimposed sheet of quick assembly disassembly and exempt from the screed still includes: the assembly clamping piece is used for clamping the first connecting component and the top end, so that the first connecting component and the top end form detachable connection.

According to one embodiment provided herein, the assembly clip includes: a body portion comprising: a first clamping piece positioned below the top end and a second clamping piece positioned above the first connecting part; the locking part is positioned at one end or two ends of the first clamping piece and the second clamping piece, and the locking part is used for enabling the first connecting part to be clamped with the top end through locking the first clamping piece and the second clamping piece up and down.

According to one embodiment of the present application, one end of the first engaging member and one end of the second engaging member, which are not provided with the locking portion, are connected and formed as a whole.

According to an embodiment that this application provided, the superimposed sheet of quick assembly disassembly and exempt from the screed still includes: a detachable screw; the detachable screw is arranged in a round hole preset in the first connecting part and the top end, and the first connecting part and the top end form detachable connection through the cooperation of screwing in the round hole and the nut.

According to an embodiment that this application provided, the superimposed sheet of quick assembly disassembly and exempt from the screed still includes: at least one second connecting member connected with the plurality of first connecting members in a second direction.

According to one embodiment provided herein, the second connecting member is located below the first connecting member.

The invention has the beneficial effects that:

the connecting component is detachably arranged in the laminated plate. The connecting member prevents the laminated plate from being deformed or inverted. The lifting ring on the connecting part can play an auxiliary lifting role. When the pipeline is penetrated, the connecting part vacates construction space for workers to penetrate the pipeline by quickly disassembling and assembling, so that the problems of the permanent truss rib in the prior art are solved.

The invention also provides a more convenient assembly clamping piece for the detachable connecting part, thereby further improving the construction efficiency of workers and saving the construction time for paving the laminated slab on the construction site.

The floor slab constructed by the laminated slab does not need to be additionally provided with a building leveling layer, so that one construction procedure is reduced from the building technology, and the construction efficiency is improved. The invention can improve the efficiency of the whole process, and can greatly improve the production efficiency of factories and the construction efficiency of construction sites, thereby embodying the industrialized advantages of the invention.

Because the building leveling layer is a permanent construction measure and has no relation with the structural safety, the building leveling layer can be cancelled to reduce the load of building floors and increase the net height of each floor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a quick release and screed-coat free laminate of example 1.

FIG. 2 is a perspective view of a quick release and screed laminate of example 1.

FIG. 3 is a perspective view of a quick release and screed laminate of example 1.

FIG. 4 is a perspective view of a quick release and screed laminate of example 2.

FIG. 5 is a perspective view of a quick release and screed laminate of example 2.

FIG. 6 is a perspective view of a quick release and screed laminate of example 2.

FIG. 7 is a perspective view of a quick release and screed laminate of example 3.

FIG. 8 is a perspective view of a quick release and screed laminate of example 3.

Fig. 9 is a schematic illustration of a laying pipeline.

Reference numerals illustrate:

1-prefabricating a bottom plate;

2-a reinforcing steel bar layer;

3-shear key

4-a first connection part;

5-a removable screw;

6-a hoisting mechanism;

7-a second connecting rod;

8-a first clamping piece;

9-a second clamping piece;

10-locking part;

11-pipeline.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "configured," "connected," "coupled," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection. Either mechanically or electrically. Either directly (i.e., a direct connection), indirectly (i.e., an indirect connection) through an intermediary, or in which two elements communicate. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Exemplary embodiments

This embodiment provides a quick assembly disassembly and exempt from superimposed sheet of screed-coat, quick assembly disassembly and exempt from superimposed sheet of screed-coat include: a prefabricated base plate 1 which is horizontally arranged; the reinforcement layer 2 is horizontally paved in the prefabricated bottom plate 1; the steel bar layer 2 is composed of a plurality of embedded steel bars which are orthogonally arranged along a first direction and a second direction; a plurality of shear keys 3 partially buried in the prefabricated floor panel 1; the shear key 3 is provided with a through cavity, and the central axis of the cavity is parallel to the first direction and/or the second direction; the plurality of shear keys 3 remain flush between their top ends remote from the pre-fabricated bedplate 1.

Wherein, the shear key 3 with a through cavity can be made of square steel pipes which are 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, namely the shear key 3 is transversely placed on a horizontal plane, and embedded bars can easily penetrate into the cavity of the shear key 3 when laid along the first direction and the second direction, so that the efficiency of manufacturing the prefabricated base plate 1 is improved. Compared with the prefabricated bottom plate 1 manufactured when the shear key 3 is vertically placed on the horizontal plane, the transverse placed shear key 3 only needs to avoid embedded bars in one direction, and the embedded bars can be penetrated in the transverse placed shear key 3 in the other direction and form a whole through casting concrete, so that the connection strength between the shear key 3 and the prefabricated bottom plate 1 is improved, and the structural integrity and strength of the laminated slab of the quick assembly disassembly and leveling-free layer are also improved.

Alternatively, the shear key 3 with the through cavity may be cut from a steel tube with another cross section, and the square steel tube is only one of various alternatives, and is not limited to the structure of the shear key 3 or the protection scope.

In the present exemplary embodiment, the plurality of shear keys 3 are sequentially arranged at intervals in the first direction and/or the second direction. When the plurality of shear keys 3 are arranged at intervals in the first direction, the plurality of shear keys 3 are arranged at intervals in the form of columns in the prefabricated deck 1; when the plurality of shear keys 3 are arranged at intervals in the second direction, the plurality of shear keys 3 are arranged at intervals in a row in the prefabricated deck 1; when the plurality of shear keys 3 are arranged at intervals in the first direction and the second direction in order, the plurality of shear keys 3 are arranged at intervals in an array in the prefabricated deck 1. The intervals are preferably equal in distance, and the intervals and the arrangement mode can be customized according to construction requirements.

In the present exemplary embodiment, the laminated slab of the quick-release and leveling-free layer further includes a lifting mechanism 6, and the lifting mechanism 6 and the shear key establish a direct or indirect detachable connection therebetween. The hoisting mechanism 6 can be made of hard or soft hoisted fittings. The hoisted accessory is an accessory which can be mutually fixed with hoisting instruments on a construction site. The hoisting devices on the construction site are connected with the hoisted object by using a lifting hook, so that the hoisted accessories are mostly hoisting rings or steel cables made of metal materials, ropes made of nonmetal materials and the like. Furthermore, the hoisting mechanism 6 can also be a metal soft lock with a lock. The metal soft lock is detachably connected with the shear key 3 by utilizing the characteristic of the metal soft lock belt lock, and then the metal soft lock is hung on a lifting hook to carry out lifting operation. The arrangement mode is convenient to operate, the metal soft lock is very firm, and the metal soft lock has very strong safety on a construction site.

In the present exemplary embodiment, the quick-release and leveling-free laminated slab further comprises at least one first connecting member 4, wherein the first connecting member 4 is detachably connected to the top ends of the plurality of shear keys 3 along a first direction. Wherein, the first connecting part 4 can be made of any steel material such as angle steel, H-shaped steel, square steel pipe and the like. The first connection parts 4 connecting the plurality of shear keys 3 enhance the structural strength of the prefabricated soleplate 1 in the first direction, avoiding deformation and arching of the prefabricated soleplate 1 in the first direction. In addition, the first connecting member 4 can also function to facilitate handling.

The present exemplary embodiment provides two ways of connection between the first connection member 4 and the top end of the shear key 3. The first type is detachably connected with the first type through the assembly clamping piece, and the second type is detachably connected through inserting the screw after drilling.

The first connecting component 4 is connected with the top end of the first connecting component through a connecting piece. The assembly clamp comprises a main body part and a locking part 10; the main body portion includes: a first engaging piece 8 located below the tip end and a second engaging piece 9 located above the first connecting member 4; the locking part 10 is located at one end or two ends of the first engaging member 8 and the second engaging member 9, and the locking part 10 is used for locking the first connecting member 4 with the top end by locking the first engaging member 8 and the second engaging member 9 up and down. One end of the first engaging member 8 and one end of the second engaging member 9, which are not provided with the locking portion 10, are connected to form a whole, and the whole of the first engaging member 8 and the second engaging member 9 is in a shape of fang.

Secondly, the detachable screw 5 is disposed in the first connecting component 4 and a round hole preset in the top end, and the first connecting component 4 and the top end are detachably connected by being matched with a nut through screwing in the round hole.

In the present exemplary embodiment, the first connecting member 4 is mounted with a hoisting mechanism 6. The lifting means 6 establishes an indirect detachable connection with the shear key 3 via the first connecting part 4 as an intermediary. The lifting mechanism 6 can penetrate into the lifting hook rapidly to lift the laminated slab of the quick assembly and disassembly and the leveling-free layer integrally, so that the construction efficiency is improved.

In the present exemplary embodiment, the second connecting member 7 is further included, and the second connecting member 7 is connected to the plurality of first connecting members 4 in the second direction. Optionally, the second connecting part 7 is located below the first connecting part 4. The second connection parts 7 can enhance the structural strength of the prefabricated base plate 1 in the second direction, and avoid deformation and arching of the prefabricated base plate 1 in the second direction.

Example 1

Fig. 1 to 3 show three schematic views of the laminated slab of the quick release and leveling-free layer of example 1. The laminated slab of the quick assembly disassembly and leveling-free layer comprises a prefabricated bottom plate 1, a reinforcing steel bar layer 2 and a plurality of shear keys 3. The reinforcing bar layer 2 is laid by a plurality of embedded bars that set up along first direction and second direction quadrature and forms, places shear key 3 in reinforcing bar layer 2 when laying the embedded bar, and the cavity that link up in the shear key 3 is parallel with first direction, and the embedded bar of same direction can wear to establish in the middle of the shear key 3. After the laying is completed, a casting cavity is built by using coaming plates at the periphery of the reinforcing steel bar layer 2, a precast bottom plate 1 is formed by casting concrete, the precast bottom plate 1 only covers the parts of the shear keys 3, and the top ends of the plurality of shear keys 3 far away from the precast bottom plate 1 are kept flush to serve as leveling reference surfaces.

In the present embodiment, the longitudinal direction of the prefabricated base plate 1 is set as the first direction, and the width direction is set as the second direction. The reinforcement layer 2 is omitted from the drawing except for fig. 1 for clarity of illustration of the shear key 3 and its first connecting part 4, etc. The following embodiments are all the same, and therefore, will not be described in detail.

In fig. 1, the hoisting mechanism 6 penetrates into four shear keys 3 positioned at corners, the hoisting mechanism 6 adopts a metal soft lock (also called soft lock ring, annular lock and the like) with locks, and the metal soft lock has the advantages of simple installation, quick disassembly, high safety performance and the like, and workers only need to penetrate into the hollow cavity of the shear key 3 to lock the shear key, so that direct detachable connection between the hoisting mechanism 6 and the shear key 3 is completed. And then the hoisting mechanism 6 is placed in the lifting hook to carry out hoisting operation, and after the hoisting operation is finished, the metal soft lock is unlocked. The number of hoisting mechanisms 6 shown in fig. 1 is four, with the positions being the corners around. The number and positions of the hoisting mechanisms 6 are not limited by the embodiment and fig. 1, and the number and positions of the hoisting mechanisms 6 can be adjusted by a person skilled in the art according to the actual construction scene.

In this embodiment, the central axis of the cavity of the shear key 3 and the first connecting member 4 are parallel to the first direction, so that a through hole is left at the top end of the shear key 3 shown in fig. 1 for facilitating the connection of the two, and the through hole can be screwed into a detachable screw 5. Fig. 2 is a schematic view of the first connecting member 4 provided on the laminated sheet of fig. 1. It is conceivable that the first connecting part 4 is likewise provided with identical through-holes at corresponding locations. The first connecting component 4 is erected above the shear key 3 in the same direction and aligned with the through holes of the two, and the detachable connection between the first connecting component 4 and the shear key 3 is completed by inserting the detachable threaded rod and screwing in the nut. In fig. 2, a hoisting mechanism 6 is arranged on the first connecting component 4, the hoisting mechanism 6 is made of metal hoisting rings, the metal hoisting rings are welded on the first connecting component 4, and the hoisting mechanism 6 is indirectly and detachably connected with the shear key 3 through the first connecting component 4 as an intermediate medium. The hoisting mechanism 6 is used for facilitating the lifting hook to penetrate into the hoisting mechanism 6 to hoist the laminated slab of the quick assembly disassembly and the leveling-free layer integrally, so that the construction efficiency is improved.

Fig. 3 shows a further preferred embodiment of fig. 2, fig. 3 being a further arrangement of a second connecting part 7 on the superimposed sheet shown in fig. 2. The second connection member 7 is connected to the plurality of first connection members 4 in the second direction. The second connection parts 7 can enhance the structural strength of the prefabricated base plate 1 in the second direction, and avoid deformation and arching of the prefabricated base plate 1 in the second direction. Optionally, the second connecting part 7 is located below the first connecting part 4, and the second connecting part 7 is connected with the first connecting part 4 through screwing in the detachable screw 5. More preferably, the first connecting member 4 and the second connecting member 7 may be pre-connected together by screws prior to being arranged on the shear key 3, thereby forming an integral quick arrangement on the shear key 3.

Example 2

Fig. 4 to 6 show three schematic views of the laminated slab of the quick release and leveling-free layer of example 2. The laminated slab of the quick assembly disassembly and leveling-free layer comprises a prefabricated bottom plate 1, a reinforcing steel bar layer 2 and a plurality of shear keys 3. The reinforcing bar layer 2 is laid by a plurality of embedded bars that set up along first direction and second direction quadrature and forms, places shear key 3 in reinforcing bar layer 2 when laying the embedded bar, and the cavity that link up in the shear key 3 is parallel with the second direction, and the embedded bar of same direction can wear to establish in the middle of the shear key 3. After the laying is completed, a casting cavity is built by using coaming plates at the periphery of the reinforcing steel bar layer 2, a precast bottom plate 1 is formed by casting concrete, the precast bottom plate 1 only covers the parts of the shear keys 3, and the top ends of the plurality of shear keys 3 far away from the precast bottom plate 1 are kept flush to serve as leveling reference surfaces.

Unlike fig. 1 to 3 of embodiment 1, the through cavities in the shear key 3 are parallel to the second direction, and the embedded bars of the same direction may be penetrated in 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 part 4 is parallel to the first direction, so that the central axis of the cavity of the shear key 3 is arranged orthogonally to the first connecting part 4.

This embodiment 2 still uses a screw to make the detachable connection. The first connecting member 4, the second connecting member 7 and the lifting mechanism 6 are all the same as those in embodiment 1, and thus will not be described in detail. It is easily conceivable to provide the same through-holes at the top end of the shear key 3 and at the corresponding locations on the first connecting part 4. The first connecting component 4 is erected above the shear key 3 in the same direction and aligned with the through holes of the two, and the detachable connection between the first connecting component 4 and the shear key 3 is completed by inserting the detachable threaded rod and screwing in the nut. In fig. 5, a hoisting mechanism 6 is arranged on the first connecting component 4, the hoisting mechanism 6 is made of metal hoisting rings, the metal hoisting rings are welded on the first connecting component 4, and the hoisting mechanism 6 is indirectly and detachably connected with the shear key 3 through the first connecting component 4 as an intermediate medium. The hoisting mechanism 6 is used for facilitating the lifting hook to penetrate into the hoisting mechanism 6 to hoist the laminated slab of the quick assembly disassembly and the leveling-free layer integrally, so that the construction efficiency is improved.

Fig. 6 shows a further preferred embodiment of fig. 5, fig. 6 being a further arrangement of a second connecting part 7 on the superimposed sheet shown in fig. 5. The second connection member 7 is connected to the plurality of first connection members 4 in the second direction. The second connection parts 7 can enhance the structural strength of the prefabricated base plate 1 in the second direction, and avoid deformation and arching of the prefabricated base plate 1 in the second direction. Optionally, the second connecting part 7 is located below the first connecting part 4, and the second connecting part 7 is connected with the first connecting part 4 through screwing in the detachable screw 5. More preferably, the first connecting member 4 and the second connecting member 7 may be pre-connected together by screws prior to being arranged on the shear key 3, thereby forming an integral quick arrangement on the shear key 3.

Example 3

Fig. 7 and 8 show two schematic views of the laminated slab of the quick release and leveling-free layer of example 3. The laminated slab of the quick assembly disassembly and leveling-free layer in this embodiment 3 includes a prefabricated floor 1, a reinforcing bar layer 2, and a plurality of shear keys 3. The reinforcing bar layer 2 is laid by a plurality of embedded bars that set up along first direction and second direction quadrature and forms, places shear key 3 in reinforcing bar layer 2 when laying the embedded bar, and the cavity that link up in the shear key 3 is parallel with the second direction, and the embedded bar of same direction can wear to establish in the middle of the shear key 3. After the laying is completed, a casting cavity is built by using coaming plates at the periphery of the reinforcing steel bar layer 2, a precast bottom plate 1 is formed by casting concrete, the precast bottom plate 1 only covers the parts of the shear keys 3, and the top ends of the plurality of shear keys 3 far away from the precast bottom plate 1 are kept flush to serve as leveling reference surfaces.

Unlike fig. 1 to 3 of embodiment 1, the through cavities in the shear key 3 are parallel to the second direction, and the embedded bars of the same direction may be penetrated in 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 part 4 is parallel to the first direction, so that the central axis of the cavity of the shear key 3 is arranged orthogonally to the first connecting part 4.

Unlike in embodiment 1 and embodiment 2, the shear key 3 and the first connection member 4 are detachably connected by using fitting clips. The reason for using the assembly clamping piece is that although the screw connection can play enough connection strength, a worker needs to screw in a nut in a cavity of the shear key 3 and screw the nut by a tool during construction, and through holes are also required to be formed in the top end of the shear key 3 and the first connecting component 4 in advance, so that extra steps are added in the connection mode, and the operation efficiency of the worker is limited. Therefore, these operations can be avoided by using the fitting clip, and there is no need to provide a through hole in the top end of the shear key 3 and the first connecting member 4. This clearly further improves the efficiency of the worker's operation.

The assembly clamping piece is used for clamping the first connecting part 4 and the top end so that the first connecting part and the top end form detachable connection. The assembly clamp comprises a main body part and a locking part 10; the main body portion includes: a first engaging piece 8 located below the tip end and a second engaging piece 9 located above the first connecting member 4; the locking part 10 is located at one end or two ends of the first engaging member 8 and the second engaging member 9, and the locking part 10 is used for locking the first connecting member 4 with the top end by locking the first engaging member 8 and the second engaging member 9 up and down.

Both ends of the fitting clip shown in fig. 7 are provided with locking portions 10. The locking portion 10 is formed by a screw and a nut. After the first and second engaging pieces 8 and 9 are inserted under the tip and under the first connecting member 4, respectively, the first and second engaging pieces 8 and 9 are engaged by inserting a screw and screwing a nut, thereby completing the detachable connection between the shear key 3 and the first connecting member 4.

For convenience of workers to use the assembly clamp, fig. 8 shows a preferred embodiment, in which the first clamp 8 and the second clamp 9, which are not provided with the locking portion 10, are connected to each other at one end and formed into a whole, and the first clamp 8 and the second clamp 9 are integrally formed in a shape of fang. The worker can insert the shear key 3 and the first connecting member 4 by holding the body portion with one hand and inserting the other hand with the screw rod inserted into the other end of the body portion, and then screw the nut with both hands. In addition, the hoisting mechanism 6 in the embodiment selects a hoisting mode in which the metal soft lock and the metal hoisting ring are arranged together, provides more optional hoisting modes for workers through direct and indirect detachable connection modes, and can further improve the safety of hoisting operation.

The above three specific embodiments can be provided with the first connecting component 4 and the second connecting component 7 before the finished product leaves the factory, and the efficiency of the whole process can be improved by using the screw or the assembly clamping piece, which comprises the steps of greatly improving the production efficiency of a factory, greatly improving the construction efficiency of a construction site and embodying the industrialized advantage of the embodiment. When the components are hoisted on site, the superimposed sheet is hoisted by connecting the hooks and the hoisting mechanism 6, and the first connecting part 4 (with the second connecting part 7) is integrally detached after being laid at the corresponding position by a worker. The disassembled laminated slab is shown in fig. 9, so that construction space is saved for the penetrated pipeline 11, and the defects of the permanent truss rib in the prior art are overcome. And then, when concrete is poured on the laminated slab, the top end of the shear key 3 can be used as a leveling reference surface, so that one leveling construction procedure is reduced from the construction technology, and the construction efficiency is improved. Because the building leveling layer is a permanent construction measure and has no relation with the structural safety, the building leveling layer can be cancelled to reduce the load of building floors and increase the net height of each floor.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to cover all modifications, adaptations, and alternatives falling within the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a quick assembly disassembly and exempt from superimposed sheet of leveling layer, its characterized in that, quick assembly disassembly and exempt from superimposed sheet of leveling layer include: a prefabricated bottom plate which is horizontally arranged;

the reinforcement layer is horizontally paved in the prefabricated bottom plate; the steel bar layer is composed of a plurality of embedded steel bars which are orthogonally arranged along a first direction and a second direction;

a plurality of shear keys partially embedded in the prefabricated floor; the shear key is provided with a through cavity, and the central axis of the cavity is parallel to the first direction and/or the second direction; the plurality of shear keys remain flush between the top ends of the plurality of shear keys remote from the pre-fabricated deck.

2. The quick release and leveling-free composite plate of claim 1, wherein the plurality of shear keys are sequentially spaced apart in a first direction and/or a second direction.

3. The quick release and leveling layer-free laminated sheet of claim 1, further comprising:

and the hoisting mechanism is connected with the shear key in a direct or indirect detachable way.

4. The quick release and leveling layer-free laminated sheet of claim 1, further comprising:

at least one first connection member establishing a detachable connection between the first connection member and the top ends of the plurality of shear keys in a first direction.

5. The quick release and leveling layer-free laminated sheet of claim 4, further comprising:

the assembly clamping piece is used for clamping the first connecting component and the top end, so that the first connecting component and the top end form detachable connection.

6. The quick release and leveling layer free laminated board of claim 5, wherein the assembly clip comprises: a body portion comprising: a first clamping piece positioned below the top end and a second clamping piece positioned above the first connecting part;

the locking part is positioned at one end or two ends of the first clamping piece and the second clamping piece, and the locking part is used for enabling the first connecting part to be clamped with the top end through locking the first clamping piece and the second clamping piece up and down.

7. The laminated sheet of quick release and leveling-free layer as recited in claim 6, wherein the first and second engagement members, which are not provided with the locking portion, are connected at one end and formed as a unit.

8. The quick release and leveling layer-free laminated sheet of claim 4, further comprising:

a detachable screw; the detachable screw is arranged in a round hole preset in the first connecting part and the top end, and the first connecting part and the top end form detachable connection through the cooperation of screwing in the round hole and the nut.

9. The quick release and leveling-free laminate of any one of claims 4-8, further comprising:

at least one second connecting member connected with the plurality of first connecting members in a second direction.

10. The quick release and leveling layer free composite sheet of claim 9 wherein said second attachment member is positioned below said first attachment member.

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