CN215211790U - Full-prefabricated spliced floor slab - Google Patents

Abstract

The utility model discloses a full prefabricated concatenation formula floor, including at least two prefabricated floors that splice mutually and be located same horizontal plane, be provided with on the coupling assembling that is provided with rectangular shape between the adjacent prefabricated floor and its concatenation face and supply coupling assembling both ends male jack, the mouth of filling of intercommunication rather than the jack is seted up to the top surface of prefabricated floor, and the both ends of coupling assembling all are provided with the depressed part, fill in mouthful be provided with the depressed part complex plug connector of pegging graft, plug connector protrusion in depressed part. This prefabricated concatenation formula floor entirely when splicing two prefabricated floor slabs, passes the jack with coupling assembling's both ends and stretches into in the filling opening, then inserts the plug connector, realizes the spacing connection of two prefabricated floor slabs, and concrete is pour to the rethread filling opening, accomplishes the concatenation, realizes the high-speed joint through the grafting cooperation when guaranteeing the floor structure steadiness, is favorable to improving assembly efficiency.

Description

Full-prefabricated spliced floor slab

Technical Field

The utility model belongs to the technical field of the precast floor slab technique and specifically relates to a prefabricated concatenation formula floor entirely is related to.

Background

The floor slab is one of important horizontal members of a building structure, and is used for bearing vertical loads such as the self weight of the floor slab, decoration load, use load and the like under normal use conditions and transmitting the vertical loads to stressed members such as beams, columns and the like; and secondly, when the building bears horizontal loads such as wind load or earthquake load and the like, the horizontal load of the floor is effectively transmitted to a lateral force resisting system of the building structure through the in-plane rigidity and the bearing capacity of the building.

In order to improve the overall in-plane shear resistance, bending rigidity and bearing capacity of the spliced floor slabs and ensure that the deformation of the splicing seams is coordinated when the floor slabs are subjected to vertical load, the Chinese patent application with the publication number of CN110761463A discloses a fully-prefabricated spliced floor slab which is formed by splicing two or more prefabricated floor slabs, wherein the splicing positions of the prefabricated floor slabs are of a tooth socket structure, and the two prefabricated floor slabs are meshed together through tooth sockets; and a connecting and fixing part is arranged between the two prefabricated floor slabs. In the fully-prefabricated assembled floor slab, the prefabricated floor slabs are spliced through the tooth socket structures and connected through the connecting fixing pieces, the in-plane shear rigidity and the bearing capacity of the floor slab are greatly increased, the in-plane bending resistance bearing capacity is improved through the fixing connecting pieces, the out-of-plane deformation coordination of the floor slab is ensured, and the influence on the use attractiveness caused by the cracking of floor slab joints is avoided.

However, when the connecting and fixing member is used for connecting two floors, the two ends of the connecting and fixing member are respectively positioned in the through holes of the two floors, the space of the through holes is narrow, so that the nut is difficult to operate when the nut is assembled on the connecting and fixing member, the assembling efficiency is reduced, and after the nut is assembled, the connecting and fixing member is not completely fixed between the two floors, the sliding or the deviation is easy to occur, and the stability of the floor splicing structure is reduced.

Therefore, there is a need for improvements to the prior art fully precast splice floor slabs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that exists among the prior art, provide a convenient operation, be favorable to improving assembly efficiency and guarantee the full prefabricated concatenation formula floor of floor structure steadiness.

In order to realize the technical effects, the utility model adopts the technical scheme that: the utility model provides a full prefabricated concatenation formula floor, includes two at least prefabricated floors that splice mutually and be located same horizontal plane, is provided with the confession on the coupling assembling that is provided with rectangular shape between the adjacent prefabricated floor and its concatenation face the jack that the coupling assembling both ends were worn to establish, the mouth of filling of rather than jack intercommunication is seted up to the top surface of prefabricated floor, the both ends of coupling assembling all are provided with the depressed part, fill in be provided with in the mouth with depressed part grafting complex plug connector, the plug connector protrusion in the depressed part.

When the fully prefabricated splicing type floor slab of the technical scheme is assembled and spliced, one end of the connecting component is inserted into the jack of one prefabricated floor slab, the end part of the connecting component extends into the filling opening, one plug connector is inserted into the concave part of the end part to realize axial limiting, then the jack of the other prefabricated floor slab is aligned with the jack of the prefabricated floor slab, the two prefabricated floor slabs are close to each other to ensure that the side surfaces of the two prefabricated floor slabs are jointed, the jointed side surfaces of the two prefabricated floor slabs are splicing surfaces, the other plug connector is inserted into the concave part at the other end of the connecting component to complete the splicing and matching of the plug connector and the connecting component, the plug connector protrudes out of the concave part, so that the plug connector cannot pass through the jacks of the two prefabricated floor slabs, the limiting operation between the connecting component and the prefabricated floor slabs is realized, and then concrete is filled into the jacks through the filling opening, and the two prefabricated floor slabs can be fixedly connected through concrete. Because after two prefabricated floor slabs are close to the laminating, only need insert the depressed part with the plug connector in, can accomplish the spacing connection between two prefabricated floor slabs, easy operation to be favorable to improving assembly efficiency.

Preferably, the connecting assemblies are arranged in a plurality and distributed at intervals along the length direction of the splicing surface.

Through adopting above-mentioned technical scheme, utilize a plurality of coupling assembling with two prefabricated floor spacing connections, strengthened the structural strength of this concatenation formula floor.

Preferably, the connecting assembly comprises a connecting shaft, the recessed portion is a socket arranged on the connecting shaft, the plug connector comprises a long-strip-shaped plugging portion, and the plugging portion is in plugging fit with the socket.

Through adopting above-mentioned technical scheme, pass the jack of one of them prefabricated floor with the one end of connecting axle, stretch into in this prefabricated floor's the mouth of filling, keep the interface upwards simultaneously, then overlap the jack of another prefabricated floor at the other end of connecting axle for the other end of connecting axle is located the mouth of filling of this prefabricated floor, then inserts the grafting portion of plug connector in the interface, can accomplish the spacing connection between two prefabricated floors.

Preferably, the connecting assembly comprises a connecting shaft, the recessed portion is a closed annular groove formed in the connecting shaft, the axis of the groove coincides with the axis of the connecting shaft, the plug connector comprises a U-shaped plugging portion, and the plugging portion is in plugging fit with the plugging port.

Through adopting above-mentioned technical scheme, when splicing two prefabricated floor slabs, need not the angle of adjusting the connecting axle carelessly, only need guarantee that the both ends of connecting axle pass two prefabricated floor slab's jack for the recess on the connecting axle is located fills the mouth, inserts the interface with the grafting portion of U-shaped again, can accomplish the plug connection of plug connector and connecting axle, and it is more convenient to operate, more is favorable to improving assembly efficiency.

Preferably, the plug connector comprises an extension part protruding out of the recess part, and the filling opening is back to the inner wall of the jack and an elastic reinforcing part is filled between the extension part.

Through adopting above-mentioned technical scheme, utilize elastic reinforcement to fill the clearance between extension and the pouring opening inside for on the reinforcement is acted on prefabricated floor through elasticity after the compression, thereby make two prefabricated floor produce the trend that is close to each other, reduce the space between two prefabricated floor, thereby consolidate this concatenation formula floor structure's steadiness.

Preferably, the depressed part at coupling assembling both ends all is provided with a plurality ofly, follows coupling assembling's length direction interval distribution.

Through adopting above-mentioned technical scheme, conveniently adjust the grafting position of plug connector on the connecting axle for the reinforcement is sealed to be filled in the plug connector and fills between the inner wall of mouth.

Preferably, coupling assembling includes connecting pipe and connecting rod, the one end of connecting pipe with connecting rod sliding fit, the other end can be dismantled and be connected with the end cover, the depressed part at coupling assembling both ends set up respectively in the connecting rod with on the end cover, be provided with the through-hole on the end cover, fill the mouth and pass through the through-hole with the inner chamber intercommunication of connecting pipe.

By adopting the technical scheme, the distance between the connecting rod and the concave part on the end cover is adjusted by utilizing the connecting rod and the connecting pipe which are in sliding fit, so that the distance is matched with the distance between the pouring openings of the two prefabricated floor slabs, and the plug connectors are conveniently inserted; and pour the concrete in the mouth to pouring into, the concrete passes through the inner chamber that the through-hole got into the connecting pipe, is connected with the connecting rod to with connecting pipe, connecting rod and two precast floor slab fixed connection.

Preferably, the connecting rod overcoat is equipped with elastic sealing washer, the outer fringe of sealing washer is laminated mutually with the jack inner wall of one of them prefabricated floor.

Through adopting above-mentioned technical scheme, utilize elastic sealing washer to fill the clearance between connecting rod outer fringe and the prefabricated floor jack inner wall to prevent that two prefabricated floors from taking place the skew slip in the footpath of connecting rod, thereby strengthened the steadiness that two prefabricated floors connect.

Preferably, a positioning part is arranged in the filling opening, and the positioning part is in splicing fit with the concave part through the plug connector.

Through adopting above-mentioned technical scheme, pass depressed part and location portion with the plug connector, locking coupling assembling and prefabricated floor are for coupling assembling length direction's position, prevent that two prefabricated floor from taking place the skew along coupling assembling's length direction, influence the steadiness of concatenation floor structure.

Preferably, the splicing surfaces of the adjacent precast floor slabs are respectively provided with a positioning bulge and a positioning recess which are matched with each other.

By adopting the technical scheme, when the two prefabricated floor slabs are spliced, the positioning bulge on the splicing surface of one of the prefabricated floor slabs is inserted into the corresponding positioning bulge, or the positioning bulge on the splicing surface of one of the prefabricated floor slabs is sleeved in the corresponding positioning bulge, so that the two prefabricated floor slabs are conveniently aligned.

To sum up, the utility model discloses full prefabricated concatenation formula floor passes the jack and stretches into in the filling opening with coupling assembling's both ends when splicing two prefabricated floors, then inserts the plug connector, realizes two prefabricated floors's spacing connection, and the rethread fills mouthful concreting, accomplishes the concatenation, realizes the high-speed joint through the grafting cooperation when guaranteeing the floor structure steadiness, is favorable to improving assembly efficiency.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is an exploded schematic view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of example 2;

fig. 5 is a schematic structural view of the connecting assembly of embodiment 2;

FIG. 6 is an exploded schematic view of FIG. 5;

FIG. 7 is a schematic structural view of embodiment 3;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a sectional view taken along line A-A of FIG. 8;

FIG. 10 is a schematic structural view of a precast floor slab according to example 3;

FIG. 11 is an enlarged view of portion B of FIG. 10;

FIG. 12 is a schematic structural view of a connecting assembly of embodiment 3;

FIG. 13 is an exploded schematic view of FIG. 12;

in the figure: 1. the prefabricated floor comprises a prefabricated floor, 1-1 plug hole, 1-2 pouring openings, 1-3 positioning portions, 1-4 positioning protrusions, 1-5 positioning recesses, 2 connecting assemblies, 2a connecting shaft, 2b connecting pipes, 2c connecting rods, 2d end covers, 2da. through holes, 2e flanges, 2f lantern rings, 2g sealing rings, 2-1 recess portions, 3 plug connectors, 3a extending portions, 3b plug connecting portions and 4 reinforcing members.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 1-3, the fully prefabricated and spliced floor slab of embodiment 1 includes two prefabricated floor slabs 1 spliced with each other and located on the same horizontal plane, a strip-shaped connecting assembly 2 is disposed between the two prefabricated floor slabs 1, the connecting assembly 2 includes a connecting shaft 2a, a filling opening 1-2 communicated with a jack 1-1 of the prefabricated floor slab 1 is disposed on a top surface of the prefabricated floor slab 1, two ends of the connecting shaft 2a respectively penetrate through the jacks 1-1 of the two prefabricated floor slabs 1 and extend into the filling opening 1-2, two ends of the connecting shaft 2a are both provided with a plurality of concave portions 2-1, the concave portions 2-1 are insertion openings, and are distributed side by side at equal intervals along a length direction of the connecting shaft 2a, one of the insertion openings is inserted and matched with an insertion piece 3, the insertion piece 3 includes an insertion portion 3b inserted and matched with the insertion opening and an extension portion 3a protruding from the insertion opening 3b, the extension 3a is plate-shaped and a rubber plate-shaped reinforcement 4 is arranged between the extension and the inner wall of the pouring opening 1-2 facing away from the plug socket 1-1.

In the embodiment, when two prefabricated floor slabs 1 are spliced, the connecting shaft 2a penetrates through the jack 1-1 of one of the prefabricated floor slabs 1, the end part of the connecting shaft 2a is positioned in the pouring opening 1-2, the connecting shaft 2a is rotated to enable the plugging opening to face upwards, the plugging part 3b of the plug connector 3 is inserted into the plugging opening on the connecting shaft 2a in the pouring opening 1-2, the extending part 3a protrudes out of the recessed part 2-1, and the limiting connection between the connecting shaft 2a and the prefabricated floor slabs 1 is realized.

And then aligning the jack 1-1 on the other prefabricated floor slab 1 with the jack 1-1 on the previous prefabricated floor slab 1-1, approaching the two, enabling the other end of the connecting shaft 2a to penetrate through the jack 1-1 on the other prefabricated floor slab 1 and extend into the pouring opening 1-2 of the other prefabricated floor slab, keeping the splicing surfaces of the two prefabricated floor slabs 1 attached to each other, then coming in and going out the plug connector 3 in the pouring opening 1-2 of the other prefabricated floor slab 1, and enabling the plug part 3b of the plug connector 3 to be inserted into the plug opening at the other end of the connecting shaft 2a, thereby completing the limit connection between the two prefabricated floor slabs.

In order to reduce the gap between the splicing surfaces of the two prefabricated floors 1 and reinforce the stability of the spliced floor structure, a reinforcing member 4 made of rubber is stuffed between the extension part 3a and the inner wall of one side of the pouring port 1-2, which is back to the jack 1-1, and the gap between the two is filled, so that the reinforcing member 4 generates elastic deformation after being compressed and acts on the inner wall of the pouring port 1-2, and then the reinforcing members 4 in the two pouring ports 1-2 respectively generate elasticity for the two prefabricated floors 1, so that the two prefabricated floors 1 tend to approach each other, the gap between the two prefabricated floors 1 is reduced, and the stability of the spliced floor structure is reinforced. Certainly, as the replacement of similar effect, reinforcement 4 also can choose other materials to make for use, it should be noted that, the interface at connecting axle 2a both ends is provided with a plurality ofly, distributes side by side along the length direction of connecting axle 2a, adopts this design, can adjust the grafting position of plug connector 3 according to the size flexibility of reinforcement 4 for the clearance between reinforcement 4 packing extension 3a and the mouth of pouring 1-2 inner wall.

After the reinforcing member 4 is inserted, the gap between the two prefabricated floor slabs 1 is reduced, the connection of the two prefabricated floor slabs 1 is converted into fixed connection from limiting connection, concrete is poured into the pouring openings 1-2 in order to further reinforce the connection of the two prefabricated floor slabs 1, the connecting shaft 2a is fixedly connected with the prefabricated floor slabs 1 through the concrete in the pouring openings 1-2, the two prefabricated floor slabs 1 are fixedly connected through the connecting shaft 2a and the concrete, and the stability of the spliced floor slab structure is enhanced.

The three connecting shafts 2a are arranged and distributed at intervals along the length direction of the splicing surfaces of the two prefabricated floor slabs 1. By adopting the design mode, the number of the connecting nodes between the two prefabricated floor slabs 1 is increased, so that the stability of the spliced floor slab structure is strengthened.

In the two prefabricated floor slabs 1, a plurality of positioning bulges 1-4 are arranged on the splicing surface of one of the two prefabricated floor slabs 1 at equal intervals along the length direction of the splicing surface, a plurality of positioning depressions 1-5 are arranged on the splicing surface of the other prefabricated floor slab at equal intervals along the length direction of the splicing surface, and the positioning bulges 1-4 are in one-to-one correspondence with and are matched with the positioning depressions 1-5. By adopting the structure, the two prefabricated floor slabs 1 are conveniently aligned when being spliced, the sliding deviation of the two prefabricated floor slabs 1 along the length direction of the splicing surfaces is prevented, and the stability of the spliced floor slab structure is further ensured.

In the production process of the spliced floor slab in the embodiment, after the two prefabricated floor slabs 1 are butted, two ends of a connecting shaft 2a penetrate through the insertion holes 1-1 of the two prefabricated floor slabs 1 and extend into the filling openings 1-2, the limit connection of the two prefabricated floor slabs 1 can be realized only by inserting the insertion parts 3b of the plug connectors 3 into the insertion openings on the connecting shaft 2 a; after the reinforcing member 4 is inserted, the gap between the two prefabricated floor slabs 1 can be reduced, and the structure of the spliced floor slab is reinforced; and then pouring concrete through the pouring openings 1-2, and fixedly connecting the connecting shaft 2a and the two prefabricated floor slabs 1 by using the concrete, thereby completing the splicing of the two prefabricated floor slabs 1. The plug-in connection matching of the plug-in connectors 3 and the connecting shafts 2a is adopted, the limiting connection of the two prefabricated floor slabs 1 is realized, the operation is simple, and the improvement of the working efficiency is facilitated.

Example 2

As shown in fig. 4 to 6, the fully prefabricated and spliced floor slab of embodiment 2 is based on embodiment 1, and is different in that the recessed portion 2-1 is a closed annular groove provided on the connecting shaft 2a, an axial line of the groove coincides with an axial line of the connecting shaft 2a, and the plug connector 3 includes a U-shaped insertion portion, and the insertion portion is inserted and fitted with the insertion opening.

In the embodiment, after the connecting shaft 2a penetrates through the jack 1-1, the concave part 2-1 is a closed annular groove, so that the plug connector 3 can be conveniently inserted into the groove from any angle, the plug connection matching between the plug connector 3 and the connecting shaft 2a is realized, namely, the rotating angle of the connecting shaft 2a does not need to be adjusted, the operation is simplified, the assembly is simpler, and the work efficiency is improved.

Example 3

As shown in fig. 7-13, the fully prefabricated spliced floor slab of embodiment 3 is based on embodiment 2, and is different in that the connection assembly 2 includes a connection pipe 2b and a connection rod 2c, a flange 2e is provided at an outer edge of one end of the connection rod 2c, a collar 2f is provided on an inner wall of one end of the connection pipe 2b, an end cap 2d is screwed at the other end, the collar 2f is in sliding fit with the connection rod 2c, and two recesses 2-1 are respectively closed annular grooves provided on the end cap 2d and the connection rod 2 c; the bottom surface of the pouring opening 1-2 is provided with positioning parts 1-3, and the positioning parts 1-3 are two positioning openings which are in splicing fit with the two ends of the U-shaped plug connector 3; a sealing ring 2g made of rubber is sleeved outside the connecting rod 2c, and the outer edge of the sealing ring 2g is attached to the inner wall of the jack 1-1 of one of the prefabricated floor slabs 1; the end cover 2d is provided with a through hole 2da, and the filling port 2-1 is communicated with the inner cavity of the connecting pipe 2b through the through hole 2da.

In this embodiment, pass the lantern ring 2f with connecting rod 2c to utilize end cover 2d to seal connecting pipe 2b, because flange 2e can't pass through lantern ring 2c, realized the spacing slip between connecting rod 2c and the connecting pipe 2b, overlap the part of connecting rod 2c protrusion connecting pipe 2b with sealing washer 2g again, realized coupling assembling 2's equipment promptly.

A connecting rod 2c in the connecting assembly 2 penetrates through a jack 1-1 of one prefabricated floor slab 1 and then extends into a filling opening 1-2, the connection between the connecting rod 2c and the prefabricated floor slab 1 is reinforced through a sealing ring 2g, the connecting rod 2c is prevented from radially sliding or deviating in the jack 1-1, radial locking is achieved, then a U-shaped plug connector 3 penetrates through a groove in the connecting rod 2c, the plug connector 3 is inserted into a positioning opening, and axial fixing of the connecting rod 2c is achieved; then sleeving the jack 1-1 of the other prefabricated floor slab 1 on the connecting pipe 2b, closely attaching the two prefabricated floor slabs 1, inserting the plug connector 3 into the pouring opening 1-2 of the other prefabricated floor slab 1, sliding the connecting pipe 2a through the plug connector 3 to enable the two ends of the plug connector 3 to be opposite to the positioning opening on the other prefabricated floor slab 1, inserting the plug connector 3 downwards, enabling the two ends of the plug connector 3 to penetrate through the groove and then to be inserted into the positioning opening, further axially fixing the other prefabricated floor slab 1 and the connecting pipe 2b, pouring concrete into the pouring openings 1-2 of the two prefabricated floor slabs 1 at the moment, enabling the concrete to enter the inner cavity of the connecting pipe 2b through the through hole 2da and to be in contact with the connecting rod 2c, fixedly connecting the connecting pipe 2b and the connecting rod 2c through the concrete, and pouring the concrete into the two pouring openings 1-2 to enable the connecting pipe 2b, one prefabricated floor slab and the connecting rod 2b to be fixedly connected with the connecting pipe 2b c, fixedly connecting the prefabricated floor slab with the other prefabricated floor slab 1, further realizing the fixed connection of the two prefabricated floor slabs and completing the splicing.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a prefabricated concatenation formula floor entirely, includes two at least concatenation mutually and be located precast floor (1) of same horizontal plane, is provided with the confession on coupling assembling (2) and its splice surface of rectangular shape between adjacent precast floor (1) jack (1-1) that coupling assembling (2) both ends were worn to establish, fill mouth (1-2) rather than jack (1-1) intercommunication is seted up to the top surface of precast floor (1), its characterized in that:

the two ends of the connecting component (2) are provided with recessed parts (2-1), the filling port (1-2) is internally provided with a plug connector (3) which is matched with the recessed parts (2-1) in an inserting mode, and the plug connector (3) protrudes out of the recessed parts (2-1).

2. The fully precast spliced floor slab of claim 1, wherein: the connecting assemblies (2) are arranged in a plurality and distributed at intervals along the length direction of the splicing surface.

3. The fully precast spliced floor slab of claim 1, wherein: the connecting assembly (2) comprises a connecting shaft (2 a), the concave part (2-1) is a socket arranged on the connecting shaft (2 a), the plug connector (3) comprises a long-strip-shaped plug part (3 b), and the plug part (3 b) is in plug-in fit with the socket.

4. The fully precast spliced floor slab of claim 3, wherein: the connecting assembly (2) comprises a connecting shaft (2 a), the concave part (2-1) is a closed annular groove arranged on the connecting shaft (2 a), the axis of the groove coincides with the axis of the connecting shaft (2 a), the plug connector (3) comprises a U-shaped plug part (3 b), and the plug part (3 b) is in plug fit with the plug interface.

5. The fully precast spliced floor slab of claim 3 or 4, wherein: the plug connector (3) comprises an extension part (3 a) protruding out of the recess part (2-1), and an elastic reinforcing part (4) is filled between the inner wall of the filling opening (1-2) back to the jack (1-1) and the extension part (3 a).

6. The fully precast spliced floor slab of claim 5, wherein: the concave parts (2-1) at the two ends of the connecting component (2) are provided with a plurality of concave parts which are distributed at intervals along the length direction of the connecting component (2).

7. The fully precast spliced floor slab of claim 1, wherein: coupling assembling (2) include connecting pipe (2 b) and connecting rod (2 c), the one end of connecting pipe (2 b) with connecting rod (2 c) sliding fit, the other end can be dismantled and be connected with end cover (2 d), depressed part (2-1) at coupling assembling (2) both ends set up respectively in connecting rod (2 c) with on end cover (2 d), be provided with through-hole (2 da) on end cover (2 d), fill mouth (1-2) and pass through-hole (2 da) with the inner chamber intercommunication of connecting pipe (2 b).

8. The fully precast spliced floor slab of claim 7, wherein: elastic sealing ring (2 g) is sleeved on the connecting rod (2 c), and the outer edge of the sealing ring (2 g) is attached to the inner wall of the jack (1-1) of one of the prefabricated floor slabs (1).

9. The fully precast spliced floor slab of claim 1, wherein: and a positioning part (1-3) is arranged in the filling opening (1-2), and the positioning part (1-3) is in splicing fit with the concave part (2-1) through the plug connector (3).

10. The fully precast spliced floor slab of claim 1, wherein: the splicing surfaces of the adjacent precast floor slabs (1) are respectively provided with positioning bulges (1-4) and positioning depressions (1-5) which are matched with each other.

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