A spliced structure of a composite floor slab

Abstract

The present invention discloses a splicing structure for a composite floor slab, which includes a precast floor slab and a cast-in-place concrete slab. A plurality of insertion blocks are fixedly connected to one side of the cast-in-place concrete slab close to the precast floor slab. A plurality of insertion grooves are formed in one side of the precast floor slab close to the cast-in-place concrete slab. The plurality of insertion grooves are arranged in one-to-one correspondence with the plurality of insertion blocks, and the insertion blocks can be inserted into the inner wall of the insertion grooves. A limiting device for limiting the insertion blocks is arranged in the insertion grooves. The present invention can facilitate the improvement of construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of composite floor slabs, and in particular to a splicing structure for composite floor slabs. Background Art

[0002] A composite floor slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. The precast slab is not only one of the components of the floor slab structure but also a permanent formwork for the cast-in-place reinforced concrete composite layer. Horizontal equipment pipelines can be laid in the cast-in-place composite layer. The composite floor slab has good integrity, high stiffness, can save formwork, and the upper and lower surfaces of the slab are flat, which is convenient for the decoration of the finishing layer, and is suitable for high-rise buildings and large-span buildings with high requirements for overall stiffness.

[0003] In the prior art, the connection method of the composite floor slab adopts the form of a cast-in-place belt with a width of 200 mm reserved. During construction, it is necessary to first set up the formwork and support for the post-cast strip of the floor slab.

[0004] However, when it is necessary to install the composite floor slab, the prior art is relatively cumbersome, thus reducing the construction efficiency. Summary of the Invention

[0005] The present application provides a splicing structure for a composite floor slab, which can facilitate the improvement of construction efficiency.

[0006] A splicing structure for a composite floor slab provided by the present application adopts the following technical solutions:

[0007] A splicing structure for a composite floor slab includes a precast floor slab and a cast-in-place concrete slab. A plurality of insertion blocks are fixedly connected to the side of the cast-in-place concrete slab close to the precast floor slab. A plurality of insertion slots are formed in the side of the precast floor slab close to the cast-in-place concrete slab. The plurality of insertion slots are arranged in one-to-one correspondence with the plurality of insertion blocks, and the insertion blocks can be inserted into the inner wall of the insertion slots; a limiting device for limiting the insertion blocks is arranged in the insertion slots.

[0008] By adopting the above technical solutions, when it is necessary to connect the cast-in-place concrete slab with the precast floor slab, first drive the cast-in-place concrete slab to move. The cast-in-place concrete slab drives the insertion blocks to move. When the insertion blocks are aligned with the insertion slots, drive the concrete slab to move. When the insertion blocks are inserted into the insertion slots, through the setting of the limiting device, it is convenient to fix the insertion blocks, so that it is convenient to connect the cast-in-place concrete slab with the precast floor slab, and further it is convenient to improve the construction efficiency.

[0009] Preferably, the limiting device includes a limiting block. A sliding groove is formed in the inner wall of the insertion slot. The limiting block is slidably arranged on the inner wall of the sliding groove. A limiting hole is formed in one side wall of the insertion block, and the limiting block can be inserted into the inner wall of the limiting hole. A first driving member for driving the limiting block to be inserted into the limiting hole is arranged in the sliding groove. A horizontal groove is formed in one side wall of the sliding groove, and a blocking mechanism for blocking the limiting block is arranged in the horizontal groove.

[0010] By adopting the above technical solution, when it is necessary to limit the insertion block, first drive the insertion block to be inserted into the insertion slot. When the limiting block is aligned with the limiting slot, at this time, cancel the blocking effect of the blocking mechanism on the limiting block, and then through the setting of the first driving member, it is convenient to drive the limiting pin to be inserted into the limiting slot, and further it is convenient to limit the insertion block.

[0011] Preferably, the first driving member includes a first spring. One end of the first spring is fixedly connected to the inner wall of the sliding groove, and the other end of the first spring is fixedly connected to the limiting block.

[0012] By adopting the above technical solution, when it is necessary to drive the limiting block to be inserted into the limiting slot, first cancel the blocking effect of the blocking mechanism on the limiting block, and then through the elastic force of the first spring, it is convenient to drive the limiting block to be inserted into the limiting slot.

[0013] Preferably, the blocking mechanism includes a blocking block. The blocking block is slidably arranged on the inner wall of the horizontal groove. The limiting block can abut against the blocking block. A through hole is formed in one side of the blocking block, and the limiting block can be slidably matched with the inner wall of the through hole. A vertical groove is formed in one side wall of the horizontal groove, and a driving component for driving the blocking block to move is arranged in the vertical groove.

[0014] By adopting the above technical solution, when it is necessary to block the limiting block, through the setting of the blocking block, the limiting block abuts against the blocking block under the elastic force of the first spring, so that it is convenient to block the limiting block. When it is necessary to cancel the blocking effect of the blocking mechanism on the limiting block, drive the blocking block to move through the driving component. When the limiting block is aligned with the through hole, the limiting block penetrates through the through hole under the elastic force of the first spring, so that it is convenient to cancel the blocking effect of the blocking mechanism on the limiting block.

[0015] Preferably, the driving component includes an inclined block. The inclined block is slidably arranged on the inner wall of the vertical groove. A first inclined surface is arranged on one side of the inclined block close to the blocking block, and a second inclined surface is arranged on one side of the blocking block close to the inclined block. The first inclined surface can cooperate with the second inclined surface. An installation groove is formed in the precast floor slab, and the installation groove is communicated with a plurality of the vertical grooves. A second driving member for driving a plurality of the inclined blocks to move is arranged in the installation groove.

[0016] By adopting the above technical solution, when it is necessary to drive the blocking block to move, first drive the inclined block to move along the height direction of the blocking block through the second driving member. When the inclined block abuts against the blocking block, under the cooperation of the first inclined surface and the second inclined surface, it is thus possible to facilitate the driving of the blocking block to move.

[0017] Preferably, the second driving member includes a rotating block which is rotatably arranged on the inner wall of the installation groove. A plurality of connecting rods are hinged on the rotating block, and the plurality of connecting rods are arranged in one-to-one correspondence with the plurality of inclined blocks. The end of the connecting rod away from the rotating block is hinged to the inclined block. A linkage groove is formed in the inner wall of the installation groove, and a rotating member for driving the rotating block to rotate is arranged in the linkage groove.

[0018] By adopting the above technical solution, when it is necessary to drive the inclined block to move along the height direction of the blocking block, first drive the rotating block to rotate through the rotating member. Due to the action of the connecting rod, it is thus possible to facilitate the driving of the inclined block to move along the height direction of the blocking block.

[0019] Preferably, the rotating member includes a driving rod which is fixedly connected to the cast-in-place concrete slab. The driving rod can be inserted into the linkage groove, and the driving rod can penetrate through the rotating block. A plurality of threaded blocks are fixedly connected to the driving rod, and a plurality of threaded grooves are formed in the rotating block. The plurality of threaded blocks are in one-to-one cooperation with the plurality of threaded grooves.

[0020] By adopting the above technical solution, when it is necessary to drive the rotating block to rotate, move the cast-in-place concrete slab. The cast-in-place concrete slab drives the driving rod to be inserted into the linkage groove and drives the driving rod to penetrate through the rotating block. Under the cooperation of the threaded groove and the threaded block, when the driving rod is driven to move, it is thus possible to facilitate the driving of the rotating block to rotate.

[0021] Preferably, a reset groove is formed in the inner wall of the horizontal groove, a reset plate is slidably arranged on the inner wall of the reset groove, the reset plate is fixedly connected to the blocking block, and a second spring is arranged in the reset groove. One end of the second spring is fixedly connected to the reset plate, and the other end of the second spring is fixedly connected to the inner wall of the reset groove.

[0022] By adopting the above technical solution, when the precast floor slab shakes during transportation, due to the arrangement of the reset plate and the second spring, it is possible to facilitate reducing the possibility of the blocking block displacing, and thus it is possible to facilitate reducing the possibility of the limiting block being inserted into the through hole.

[0023] Preferably, the cross-section of the vertical groove is square, and the cross-section of the inclined block is square.

[0024] By adopting the above technical solution, when the inclined block moves along the height direction of the blocking block, by setting the vertical groove and the cross-section of the inclined block to be square, it is convenient to reduce the possibility of displacement of the inclined block.

[0025] Preferably, a relief groove is formed in one side wall of the sliding groove, and the blocking block can be inserted into the inner wall of the relief groove.

[0026] By adopting the above technical solution, when the inclined block drives the blocking block to move, through the setting of the relief groove, it is convenient to make way for the blocking block, so that the limiting block can be inserted into the through hole.

[0027] In summary, the present application has the following beneficial effects:

[0028] 1. When it is necessary to connect the cast-in-place concrete slab with the precast floor slab, first drive the cast-in-place concrete slab to move. The cast-in-place concrete slab drives the insertion block to move. When the insertion block is aligned with the insertion groove, drive the concrete slab to move. When the insertion block is inserted into the insertion groove, through the setting of the limiting device, it is convenient to fix the insertion block, so that it is convenient to connect the cast-in-place concrete slab with the precast floor slab, and further improve the construction efficiency;

[0029] 2. When it is necessary to limit the insertion block, first drive the insertion block to be inserted into the insertion groove. When the limiting block is aligned with the limiting groove, at this time, cancel the blocking effect of the blocking mechanism on the limiting block, and then through the setting of the first driving member, it is convenient to drive the limiting pin to be inserted into the limiting groove, and further facilitate the limitation of the insertion block;

[0030] 3. When it is necessary to block the limiting block, through the setting of the blocking block, the limiting block abuts against the blocking block under the elastic force of the first spring, so as to facilitate the blocking of the limiting block; when it is necessary to cancel the blocking effect of the blocking mechanism on the limiting block, drive the blocking block to move through the driving assembly. When the limiting block is aligned with the through hole, the limiting block penetrates the through hole under the elastic force of the first spring, so as to facilitate the cancellation of the blocking effect of the blocking mechanism on the limiting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of this embodiment;

[0032] Figure 2 is the cross-sectional view showing the precast floor slab in this embodiment;

[0033] Figure 3 is Figure 2 the partial enlarged view of A in

[0034] Figure 4 is Figure 2 the partial enlarged view of B in

[0035] Description of reference numerals: 1, precast floor slab; 11, insertion slot; 2, cast-in-place concrete slab; 21, insertion block; 3, limiting device; 311, limiting block; 312, sliding slot; 313, limiting hole; 32, first driving member; 321, first spring; 33, blocking mechanism; 331, horizontal slot; 332, blocking block; 333, through hole; 334, vertical slot; 34, driving assembly; 341, inclined block; 342, first inclined surface; 343, second inclined surface; 344, installation slot; 35, second driving member; 351, rotating block; 352, connecting rod; 36, rotating member; 361, linkage slot; 362, driving rod; 363, threaded block; 364, threaded slot; 41, reset slot; 42, reset plate; 43, second spring; 44, relief slot. Detailed implementation manner

[0036] The present invention discloses a splicing structure for a composite floor slab, as Figure 1 shown and Figure 2 shown, including a precast floor slab 1 and a cast-in-place concrete slab 2. Both the precast floor slab 1 and the cast-in-place concrete slab 2 are square. Four insertion blocks 21 are fixedly connected to one side of the cast-in-place concrete slab 2 close to the precast floor slab 1, and the insertion blocks 21 are square.

[0037] As Figure 2 and Figure 3 shown, four insertion slots 11 are opened on one side of the precast floor slab 1 close to the cast-in-place concrete slab 2. The cross-section of the insertion slots 11 is square and extends along the width direction of the precast floor slab 1. A plurality of insertion slots 11 are arranged in one-to-one correspondence with a plurality of insertion blocks 21, and the insertion blocks 21 can be inserted into the inner wall of the insertion slots 11; a limiting device 3 for limiting the insertion blocks 21 is arranged in the insertion slots 11.

[0038] When it is necessary to connect the cast-in-place concrete slab 2 with the precast floor slab 1, first drive the cast-in-place concrete slab 2 to move. The cast-in-place concrete slab 2 drives the insertion blocks 21 to move. When the insertion blocks 21 are aligned with the insertion slots 11, drive the concrete slab to move. When the insertion blocks 21 are inserted into the insertion slots 11, through the setting of the limiting device 3, it is possible to facilitate the fixation of the insertion blocks 21, thereby facilitating the connection of the cast-in-place concrete slab 2 with the precast floor slab 1, and further facilitating the improvement of the construction efficiency.

[0039] As Figure 2 and Figure 3As shown, the limiting device 3 includes a limiting block 311. The limiting block 311 is square. A sliding groove 312 is formed in the inner wall of the insertion groove 11. The cross-section of the sliding groove 312 is square and extends along the height direction of the insertion block 21. The limiting block 311 is slidably arranged on the inner wall of the sliding groove 312 along the height direction of the insertion block 21. A limiting hole 313 is formed in one side wall of the insertion block 21 close to the limiting block 311. The cross-section of the limiting hole 313 is square and extends along the height direction of the insertion block 21. The limiting block 311 can be inserted into the inner wall of the limiting hole 313. A first driving member 32 for driving the limiting block 311 to be inserted into the limiting hole 313 is arranged in the sliding groove 312. A horizontal groove 331 is formed in one side wall of the sliding groove 312. The cross-section of the horizontal groove 331 is square and extends along the length direction of the insertion block 21. A blocking mechanism 33 for blocking the limiting block 311 is arranged in the horizontal groove 331.

[0040] When it is necessary to limit the insertion block 21, first drive the insertion block 21 to be inserted into the insertion groove 11. When the limiting block 311 is aligned with the limiting groove, at this time, cancel the blocking effect of the blocking mechanism 33 on the limiting block 311, and then through the setting of the first driving member 32, it is possible to facilitate driving the limiting pin to be inserted into the limiting groove, and further facilitate limiting the insertion block 21.

[0041] As Figure 2 and Figure 3 shown, the first driving member 32 includes a first spring 321. The first spring 321 is arranged in the sliding groove 312. The first spring 321 is arranged along the height direction of the insertion block 21. One end of the first spring 321 is fixedly connected to the inner wall of the sliding groove 312, and the other end of the first spring 321 is fixedly connected to the limiting block 311. When it is necessary to drive the limiting block 311 to be inserted into the limiting groove, first cancel the blocking effect of the blocking mechanism 33 on the limiting block 311, and then through the elastic force of the first spring 321, it is possible to facilitate driving the limiting block 311 to be inserted into the limiting groove.

[0042] As Figure 2 and Figure 3 shown, the blocking mechanism 33 includes a blocking block 332. The cross-section of the blocking block 332 is square. The blocking block 332 is slidably arranged on the inner wall of the horizontal groove 331 along the length direction of the insertion block 21. The bottom wall of the limiting block 311 can abut against the top wall of the blocking block 332. A through hole 333 is formed in one side of the blocking block 332 close to the limiting block 311. The cross-section of the through hole 333 is square and extends along the height direction of the insertion block 21. The limiting block 311 can slide in cooperation with the inner wall of the through hole 333 along the height direction of the insertion block 21. A vertical groove 334 is formed in one side wall of the horizontal groove 331. The cross-section of the vertical groove 334 is square and extends along the height direction of the insertion block 21. A driving assembly 34 for driving the blocking block 332 to move away from the vertical groove 334 is arranged in the vertical groove 334.

[0043] When it is necessary to block the limiting block 311, through the setting of the blocking block 332, the limiting block 311 abuts against the blocking block 332 under the elastic force of the first spring 321, so as to facilitate the blocking of the limiting block 311; when it is necessary to cancel the blocking effect of the blocking mechanism 33 on the limiting block 311, the driving assembly 34 drives the blocking block 332 to move. When the limiting block 311 is aligned with the through hole 333, the limiting block 311 penetrates through the through hole 333 under the elastic force of the first spring 321, so as to facilitate the cancellation of the blocking effect of the blocking mechanism 33 on the limiting block 311.

[0044] Such as Figure 2 and Figure 3 As shown, the driving assembly 34 includes an inclined block 341. The cross-section of the inclined block 341 is square. The inclined block 341 is slidably arranged on the inner wall of the vertical groove 334 along the height direction of the insertion block 21. A first inclined surface 342 is arranged on one side of the inclined block 341 close to the blocking block 332, and a second inclined surface 343 is arranged on one side of the blocking block 332 close to the inclined block 341. The first inclined surface 342 can cooperate with the second inclined surface 343. When the inclined block 341 moves along the height direction of the blocking block 332, by setting the cross-sections of the vertical groove 334 and the inclined block 341 to be square, it is convenient to reduce the possibility of displacement of the inclined block 341.

[0045] Such as Figure 2 and Figure 3 As shown, a reset groove 41 is opened on the inner wall of the horizontal groove 331. The cross-section of the reset groove 41 is square and extends along the length direction of the insertion block 21. A reset plate 42 is slidably arranged on the inner wall of the reset groove 41 along the length direction of the insertion block 21. The reset plate 42 is square. The reset plate 42 is fixedly connected to the blocking block 332. A second spring 43 is arranged in the reset groove 41. The second spring 43 is arranged along the length direction of the insertion block 21. One end of the second spring 43 is fixedly connected to the reset plate 42, and the other end of the second spring 43 is fixedly connected to the inner wall of the reset groove 41. When the inclined block 341 moves along the height direction of the blocking block 332, by setting the cross-sections of the vertical groove 334 and the inclined block 341 to be square, it is convenient to reduce the possibility of displacement of the inclined block 341.

[0046] Such as Figure 2 and Figure 3 As shown, a relief groove 44 is opened on one side wall of the sliding groove 312. The cross-section of the relief groove 44 is square and extends along the length direction of the insertion block 21. The blocking block 332 can be inserted into the inner wall of the relief groove 44. When the inclined block 341 drives the blocking block 332 to move, through the setting of the relief groove 44, it is convenient to make way for the blocking block 332, so as to facilitate the insertion of the limiting block 311 into the through hole 333.

[0047] Such asFigure 2 , Figure 3 and Figure 4 As shown in Figure 2 , Figure 3 and Figure 4 , an installation groove 344 is formed in the precast floor slab 1. The installation groove 344 extends in the horizontal direction and is communicated with a plurality of vertical grooves 334. A second driving member 35 for driving a plurality of inclined blocks 341 to move in the height direction of the insertion block 21 is arranged in the installation groove 344. When it is necessary to drive the blocking block 332 to move, first drive the inclined block 341 to move in the height direction of the insertion block 21 through the second driving member 35. When the inclined block 341 abuts against the blocking block 332, under the cooperation of the first inclined surface 342 and the second inclined surface 343, it is convenient to drive the blocking block 332 to move.

[0048] As Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the second driving member 35 includes a rotating block 351. The cross-section of the rotating block 351 is circular, and the rotating block 351 is rotatably arranged on the inner wall of the installation groove 344 through a bearing; a plurality of connecting rods 352 are hinged on the rotating block 351. The cross-section of the connecting rod 352 is square, and the plurality of connecting rods 352 are arranged in one-to-one correspondence with the plurality of inclined blocks 341; one end of the connecting rod 352 away from the rotating block 351 is hinged to the side of the inclined block 341 close to the rotating block 351. A linkage groove 361 is formed in the inner wall of the installation groove 344. The cross-section of the linkage groove 361 is circular and extends in the horizontal direction. A rotating member 36 for driving the rotating block 351 to rotate is arranged in the linkage groove 361.

[0049] When it is necessary to drive the inclined block 341 to move in the height direction of the blocking block 332, first drive the rotating block 351 to rotate through the rotating member 36. Through the action of the connecting rod 352, it is convenient to drive the inclined block 341 to move in the height direction of the blocking block 332.

[0050] As Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the rotating member 36 includes a driving rod 362. The cross-section of the driving rod 362 is circular and is arranged in the width direction of the precast floor slab 1. The driving rod 362 is fixedly connected to the side of the cast-in-place concrete slab 2 close to the precast floor slab 1. The driving rod 362 can be inserted into the inner wall of the linkage groove 361, and the driving rod 362 can penetrate through the rotating block 351. A plurality of threaded blocks 363 are fixedly connected to the driving rod 362, and a plurality of threaded grooves 364 are formed in the rotating block 351. The plurality of threaded blocks 363 are in one-to-one cooperation with the plurality of threaded grooves 364.

[0051] When it is necessary to drive the rotating block 351 to rotate, the cast-in-place concrete slab 2 is driven to move. The cast-in-place concrete slab 2 drives the driving rod 362 to be inserted into the linkage groove 361 and drives the driving rod 362 to penetrate through the rotating block 351. Under the cooperative action of the thread groove 364 and the thread block 363, when the driving rod 362 is driven to move, it is thus possible to facilitate the driving of the rotating block 351 to rotate.

[0052] Working principle:

[0053] When it is necessary to connect the cast-in-place concrete slab 2 to the precast floor slab 1, first drive the cast-in-place concrete slab 2 to move. The cast-in-place concrete slab 2 drives the insertion block 21 to move. When the insertion block 21 is aligned with the insertion groove 11, drive the concrete slab to move. When the insertion block 21 is inserted into the insertion groove 11, through the setting of the limiting device 3, it is possible to facilitate the fixing of the insertion block 21, thereby facilitating the connection of the cast-in-place concrete slab 2 to the precast floor slab 1, and further facilitating the improvement of the construction efficiency.

[0054] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A spliced structure of a composite floor slab, characterized in that: It includes a precast floor slab and a cast-in-place concrete slab. A plurality of insertion blocks are fixedly connected to one side of the cast-in-place concrete slab close to the precast floor slab. A plurality of insertion grooves are formed in one side of the precast floor slab close to the cast-in-place concrete slab. The plurality of insertion grooves are arranged in one-to-one correspondence with the plurality of insertion blocks, and the insertion blocks can be inserted into the inner walls of the insertion grooves. A limiting device for limiting the insertion blocks is arranged in the insertion grooves. The limiting device includes a limiting block. A sliding groove is formed in the inner wall of the insertion groove. The limiting block is slidably arranged in the inner wall of the sliding groove. A limiting hole is formed in one side wall of the insertion block, and the limiting block can be inserted into the inner wall of the limiting hole. A first driving member for driving the limiting block to be inserted into the limiting hole is arranged in the sliding groove. A horizontal groove is formed in one side wall of the sliding groove, and a blocking mechanism for blocking the limiting block is arranged in the horizontal groove. The first driving member includes a first spring. One end of the first spring is fixedly connected to the inner wall of the sliding groove, and the other end of the first spring is fixedly connected to the limiting block. The blocking mechanism includes a blocking block. The blocking block is slidably arranged in the inner wall of the horizontal groove. The limiting block can abut against the blocking block. A through hole is formed in one side of the blocking block, and the limiting block can slidably cooperate with the inner wall of the through hole. A vertical groove is formed in one side wall of the horizontal groove, and a driving assembly for driving the blocking block to move is arranged in the vertical groove. The driving assembly includes an inclined block. The inclined block is slidably arranged in the inner wall of the vertical groove. A first inclined surface is arranged on one side of the inclined block close to the blocking block, and a second inclined surface is arranged on one side of the blocking block close to the inclined block. The first inclined surface can cooperate with the second inclined surface. An installation groove is formed in the precast floor slab, and the installation groove communicates with the plurality of vertical grooves. A second driving member for driving the plurality of inclined blocks to move is arranged in the installation groove. The second driving member includes a rotating block. The rotating block is rotatably arranged in the inner wall of the installation groove. A plurality of connecting rods are hinged to the rotating block. The plurality of connecting rods are arranged in one-to-one correspondence with the plurality of inclined blocks. One end of the connecting rod away from the rotating block is hinged to the inclined block. A linkage groove is formed in the inner wall of the installation groove, and a rotating member for driving the rotating block to rotate is arranged in the linkage groove. The rotating member includes a driving rod. The driving rod is fixedly connected to the cast-in-place concrete slab. The driving rod can be inserted into the linkage groove. The driving rod can penetrate through the rotating block. A plurality of threaded blocks are fixedly connected to the driving rod. A plurality of threaded grooves are formed in the rotating block. The plurality of threaded blocks are in one-to-one cooperation with the plurality of threaded grooves.

2. The splicing structure of a composite floor slab according to claim 1, characterized in that: A reset groove is formed in the inner wall of the horizontal groove. A reset plate is slidably arranged in the inner wall of the reset groove. The reset plate is fixedly connected to the blocking block. A second spring is arranged in the reset groove. One end of the second spring is fixedly connected to the reset plate, and the other end of the second spring is fixedly connected to the inner wall of the reset groove.

3. A composite floor slab splicing structure according to claim 1, characterized in that: The cross-section of the vertical groove is square, and the cross-section of the inclined block is square.

4. A splicing structure of a composite floor slab according to claim 1, characterized in that: A relief groove is formed in one side wall of the sliding groove, and the blocking block can be inserted into the inner wall of the relief groove.

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