Fabricated floor fixing device

Abstract

The invention belongs to an assembly type floor fixing device in the technical field of constructional engineering. Fixing seats (8) are arranged at the tops of the longitudinal beams (6), the bottoms of the fixing seats (8) are connected with reinforcing steel bars (9), and the reinforcing steel bars (9) are pre-buried in the longitudinal beams (6); the cylindrical rod (10) is connected with the bottom of the fixing seat (8), a threaded groove is formed in the top end of the cylindrical rod (10), and a movable hole is formed in the top of the fixing seat (8) and communicated with the threaded groove. The positioning column (11) is fixedly arranged on the fixed seat (8); the connecting block (12) is arranged on the fixing base (8) and is close to the side face of the prefabricated floor slab (1). According to the fabricated floor slab fixing device, the problem that the position of a floor slab is likely to deviate when the floor slab is placed due to the fact that the fabricated floor slab cannot be positioned and fixed in the mounting process is effectively solved, meanwhile, it is ensured that the floor slab is prevented from moving in the construction process, and the construction safety and reliability are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and more specifically, relates to an assembled floor slab fixing device. Background Art

[0002] During the construction of a building, the floor slab is an integral part of the building. The prefabricated floor slab is a prefabricated floor slab made in advance with reinforced concrete in a prefabrication yard, which is a prefabricated floor slab, and then installed on the construction site. During assembly, the prefabricated floor slab is hoisted to the beam of the building by hoisting equipment. However, there is no structure on the beam to position and fix the floor slab. The position of the floor slab is generally determined by the workers' experience, which may cause large deviations. Moreover, the floor slab is only placed on the beam at both ends, and the width of the placement is relatively narrow, which may cause the floor slab to move during the construction process, resulting in excessive position deviation, or even a safety accident of falling. Therefore, there is room for improvement in the prior art.

[0003] There is a technology in the prior art named "A new type of connection structure between a structural column and a structural floor" and with a publication (announcement) number of "CN211447271U", which discloses a new type of connection structure between a structural column and a structural floor, including a floor and a structural column, wherein the structural column is cast by a vertical steel cage and cement concrete, and the vertical steel cage is composed of longitudinal steel bars and stirrups, and is characterized in that the structural column includes a plurality of main column sections and a plurality of connecting column sections, the main column sections and the connecting column sections are alternately arranged, the structural column is fixedly connected to the floor through the connecting column sections, and the connecting column sections and the floor are integrally cast. The connecting column sections on the structural column created by the present invention are integrally cast with the structural floor, thereby ensuring the firmness of the connection between the structural column and the structural floor, avoiding the need to add a reinforcing beam under the roof, ensuring the indoor floor height, and improving the quality of the residence. This technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, a prefabricated floor fixing device with a simple structure is provided, which effectively solves the problem that the prefabricated floor slabs cannot be positioned and fixed during the installation process, which may cause the position of the floor slabs to deviate when placed, while ensuring that the problem of floor slab movement is avoided during the construction process, thereby improving the construction safety and reliability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The present invention discloses an assembled floor fixing device, comprising a longitudinal beam and a positioning mechanism. A fixing seat of the positioning mechanism is arranged on the top of the longitudinal beam, and a steel bar is connected to the bottom of the fixing seat, and the steel bar is pre-buried in the longitudinal beam; a cylindrical rod is connected to the bottom of the fixing seat, a threaded groove is arranged on the top of the cylindrical rod, and a movable hole is arranged on the top of the fixing seat, and the movable hole is communicated with the threaded groove; a positioning column is fixedly arranged on the fixing seat; a connecting block is arranged on the fixing seat, and the connecting block is close to the side of the prefabricated floor slab, and a positioning hole adapted to the positioning column is arranged on the connecting block, and a fastening mechanism passes through the connecting block and the threaded groove of the fixing seat to connect the cylindrical rod.

[0007] The assembled floor fixing device comprises a plurality of longitudinal beams for supporting the prefabricated floor slabs. Each end of each prefabricated floor slab is placed on a corresponding longitudinal beam. Longitudinal and transverse steel bars are arranged on the sides of the prefabricated floor slabs. A plurality of hangers are arranged on the top of the prefabricated floor slabs. The plurality of hangers are connected to the connecting bars.

[0008] A main steel cage is arranged on the longitudinal beam, and the longitudinal steel bars are connected with the main steel cage on the corresponding longitudinal beam by binding wires, and a plurality of positioning mechanisms are arranged on the longitudinal beam.

[0009] The fastening mechanism includes: a screw rod that passes through a movable hole on a fixing seat and is threadedly connected to a threaded groove of a cylindrical rod; a knob that is fixedly mounted on the top of the screw rod; a pressure block that is rotatably sleeved on the screw rod and contacts the bottom of the knob, the pressure block being used to press the connecting block onto the fixing seat, a limiting column being fixedly mounted on the bottom of the connecting block, the limiting column being located in a positioning hole of the connecting block, and the limiting column being adapted to the positioning hole.

[0010] A supporting formwork is arranged between adjacent longitudinal beams. The supporting formwork is located below the joint of two prefabricated floor slabs 1, and a plurality of pillars are supported at the bottom of the supporting formwork.

[0011] The longitudinal steel bars extend to the outside of the precast floor slab and the ends are hook-shaped, the transverse steel bars 3 extend to the outside of the precast floor slab and the ends are hook-shaped, and the transverse steel bars 3 between two adjacent precast floor slabs are staggered. Two positioning mechanisms are shared between two adjacent precast floor slabs, and each positioning mechanism is arranged on a corresponding longitudinal beam.

[0012] After the positioning mechanism positions the prefabricated floor slab, the tie wires bind and connect the corresponding transverse steel bars staggered between adjacent prefabricated floor slabs. The connecting bars are fixedly connected to the hanging bars, and the steel bars are U-shaped structures. The connecting blocks include two, the positioning columns include two, and the limiting columns include two, and each connecting block side contacts a corresponding prefabricated floor slab.

[0013] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0014] In the assembly type floor fixing device described in the present invention, the longitudinal beam is used to carry the prefabricated floor, and in order to accurately position the prefabricated floor, a positioning mechanism is provided on the longitudinal beam, the positioning mechanism is arranged between the gaps of adjacent prefabricated floor, the positioning mechanism is fixed on the longitudinal beam, and the connecting block is a fixed structure, and the connecting block can be leaned against the side of the prefabricated floor to achieve reliable positioning of the prefabricated floor. Therefore, the structure of the present invention, by providing a positioning and fixing mechanism on the longitudinal beam supporting the prefabricated floor, can position and place the prefabricated floor through the positioning mechanism before the transverse reinforcements between adjacent prefabricated floor and before the longitudinal reinforcements are tied to the main reinforcement cage on the longitudinal beam, to ensure that the prefabricated floor is accurately and quickly placed at the corresponding position on the longitudinal beam, to avoid large deviations in the placement position, and after the prefabricated floor is placed in place, the positioning mechanism reliably fixes the prefabricated floor, to avoid the movement of the prefabricated floor during the construction process, and even to avoid its falling and causing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following is a brief description of the contents and symbols in the drawings of this specification:

[0016] Figure 1 It is a schematic diagram of the top view of the structure of the assembled floor fixing device of the present invention;

[0017] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0018] Figure 3 It is a front view cross-sectional structural schematic diagram of the positioning mechanism of the present invention;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of part B shown in FIG.

[0020] Figure 5 It is a front view assembly drawing of the supporting formwork, pillars and prefabricated floor slab of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the prefabricated floor slab of the present invention;

[0022] The marks in the attached drawings are: 1. Prefabricated floor slab; 2. Longitudinal reinforcement; 3. Transverse reinforcement; 4. Hanger reinforcement; 5. Connecting reinforcement; 6. Longitudinal beam; 7. Main reinforcement cage; 8. Fixed seat; 9. U-shaped reinforcement; 10. Cylindrical rod; 11. Positioning column; 12. Connecting block; 13. Screw; 14. Knob; 15. Pressure block; 16. Limiting column; 17. Support formwork; 18. Pillar. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0024] As attached Figure 1 -Attached Figure 6 As shown, the present invention is a prefabricated floor fixing device, including a longitudinal beam 6 and a positioning mechanism. A fixing seat 8 of the positioning mechanism is arranged on the top of the longitudinal beam 6, and the bottom of the fixing seat 8 is connected to a steel bar 9, which is pre-buried in the longitudinal beam 6; a cylindrical rod 10 is connected to the bottom of the fixing seat 8, a threaded groove is arranged on the top of the cylindrical rod 10, and a movable hole is arranged on the top of the fixing seat 8, and the movable hole is connected to the threaded groove; a positioning column 11 is fixedly arranged on the fixing seat 8; a connecting block 12 is arranged on the fixing seat 8, and the connecting block 12 is close to the side of the prefabricated floor 1, and a positioning hole adapted to the positioning column 11 is arranged on the connecting block 12, and the fastening mechanism passes through the connecting block 12 and the fixing seat 8 to connect the threaded groove of the cylindrical rod 10. The above structure proposes an improved technical solution to the deficiencies in the prior art. When the structure is set, a longitudinal beam 6 is set to carry the precast floor 1, and in order to accurately position the precast floor 1, a positioning mechanism is set on the longitudinal beam 6, and the positioning mechanism is arranged between the gaps of adjacent precast floor slabs 1. The positioning mechanism is fixed on the longitudinal beam 6, and the connecting block 12 is a fixed structure, and the connecting block 12 can be leaned against the side of the precast floor 1 to achieve reliable positioning of the precast floor 1. Therefore, the structure of the present invention, by setting a positioning and fixing mechanism on the longitudinal beam 6 supporting the precast floor 1, can position and place the precast floor 1 through the positioning mechanism before the transverse steel bars 3 between adjacent precast floor slabs 1 are bundled, and before the longitudinal steel bars 2 are bundled with the main steel cage 7 on the longitudinal beam 6, to ensure that the precast floor 1 is accurately and quickly placed at the corresponding position on the longitudinal beam 6, to avoid large deviations in the placement position, and after the precast floor 1 is placed in place, the positioning mechanism reliably fixes the precast floor 1, to avoid the movement of the precast floor during the construction process, and even to avoid its falling and causing safety accidents. The prefabricated floor fixing device described in the present invention has a simple structure and effectively solves the problem that the prefabricated floor cannot be positioned and fixed during the installation process, which may cause the position of the floor to deviate when it is placed. At the same time, it ensures that the floor movement problem is avoided during the construction process, thereby improving construction safety and reliability.

[0025] The assembled floor fixing device comprises a plurality of longitudinal beams 6 for supporting the prefabricated floor 1, each end of each prefabricated floor 1 is placed on a corresponding longitudinal beam 6, longitudinal reinforcements 2 and transverse reinforcements 3 are arranged on the side of the prefabricated floor 1, and a plurality of hanging bars 4 are arranged on the top of the prefabricated floor 1, and the plurality of hanging bars 4 are connected to the connecting bars 5. In the above structure, the hanging bars 4 on the prefabricated floor 1 can be used for the hoisting machinery to hook with hooks, so as to lift the prefabricated floor 1 for placement, and the positioning mechanism is used to accurately place the prefabricated floor 1 and fix the prefabricated floor 1, so as to avoid the safety accident of the prefabricated floor 1 moving or even falling during the construction process.

[0026] The longitudinal beam 6 is provided with a main steel cage 7, and the longitudinal steel bars 2 are connected to the main steel cage 7 on the corresponding longitudinal beam 6 by wire tying, and a plurality of positioning mechanisms are provided on the longitudinal beam 6. In the above structure, the main steel cage 7 is connected to the longitudinal steel bars 2 of the floor slab 1, and the positioning mechanism is used to quickly position and connect the floor slab 1.

[0027] The fastening mechanism includes: a screw 13 that passes through a movable hole on the fixing seat 8 and is threadedly connected to the thread groove of the cylindrical rod 10; a knob 14 that is fixedly installed on the top of the screw 13; a pressure block 15 that is rotatably sleeved on the screw 13 and contacts the bottom of the knob 14, the pressure block 15 is used to press the connecting block 12 onto the fixing seat 8, a limiting column 16 is fixedly installed at the bottom of the connecting block 12, the limiting column 16 is located in the positioning hole of the connecting block 12, and the limiting column 16 is adapted to the positioning hole.

[0028] A support formwork 17 is arranged between adjacent longitudinal beams 6, and the support formwork 17 is located below the joint of two prefabricated floor slabs 1, and a plurality of pillars 18 are supported at the bottom of the support formwork 17. In the above structure, the support formwork 17 prevents concrete mortar from falling from the joint, and the pillars 18 support the support formwork 17.

[0029] The longitudinal reinforcement 2 extends to the outside of the precast floor 1 and the end is in a hook shape, the transverse reinforcement 3 extends to the outside of the precast floor 1 and the end is in a hook shape, and the transverse reinforcement 3 between two adjacent precast floor slabs 1 is staggered. Two adjacent precast floor slabs 1 share two positioning mechanisms, and each positioning mechanism is arranged on a corresponding longitudinal beam 6. After the positioning mechanism positions the precast floor slab 1, the wire ties the corresponding transverse reinforcement 3 staggered between the adjacent precast floor slabs 1 together. The connecting rib 5 is fixedly connected to the hanger rib 4, and the reinforcement 9 is a U-shaped structure. The connecting block 12 includes two, the positioning column 11 includes two, and the limiting column 16 includes two, and each connecting block 12 contacts a corresponding precast floor slab 1 on the side.

[0030] The structure, principle and use method of the device of the present invention are described in detail below.

[0031] The present invention provides an assembled floor fixing device, such as Figure 1-6As shown, the prefabricated floor fixing device includes a longitudinal beam 6 for supporting the prefabricated floor 1, and the two ends of the prefabricated floor 1 are placed on the longitudinal beam 6; wherein the prefabricated floor 1 is pre-cast with concrete by a row of longitudinal steel bars 2, a row of transverse steel bars 3 and two rows of hanging bars 4, and the hanging bars 4 are provided with connecting bars 5, and the connecting bars 5 and the row of hanging bars 4 are welded; the longitudinal beam 6 is tied with a main steel cage 7; the positioning mechanism is assembled on the longitudinal beam 6, and the positioning mechanism is used to position, place and fix the prefabricated floor 1. In the prior art, when the prefabricated floor is hoisted to the beam body of the building by the hoisting equipment, there is no structure on the beam body for positioning and fixing the floor, and the main workers rely on experience to judge the position of the arrangement and placement of the floor, which is easy to cause a large deviation in the placement position; not only that, the floor is only placed on the beam body at both ends, and the width of the placement is relatively narrow, which may cause the floor to move during the construction process, resulting in excessive position deviation, and even a safety accident of falling.

[0032] In this embodiment, the hanging rod 4 on the prefabricated floor slab 1 is used for the lifting machinery to hook with a hook, and the prefabricated floor slab 1 is lifted for placement. When placing the prefabricated floor slab 1, the positioning and fixing mechanism is used to accurately place the prefabricated floor slab 1 and fix the prefabricated floor slab 1, so as to avoid safety accidents such as the prefabricated floor slab 1 moving or even falling during the construction process.

[0033] In a further embodiment of the present invention, the main steel cage 7 is formed by four main bars and a plurality of stirrups tied together by wire. Before the prefabricated floor 1 is placed on the longitudinal beam 6, the main steel cage 7 close to the placement position of the prefabricated floor 1 and located above the main steel cage 7 is not tied first.

[0034] In this embodiment, when the prefabricated floor slab 1 is hoisted and placed, the longitudinal steel bars 2 can be placed between the stirrups of the main steel cage 7, and then the untied main reinforcement is tied at the appropriate position, and then the transverse steel bars 3 can be tied to the main steel cage 7 by tying wire to make them a whole.

[0035] In a further embodiment of the present invention, both ends of the longitudinal steel bars 2 and the transverse steel bars 3 extend outside the prefabricated floor slab 1 and the ends are hook-shaped, and the transverse steel bars 3 between two adjacent prefabricated floor slabs 1 are staggered, thus improving the reliability of the connection between adjacent transverse steel bars. In this embodiment, after the prefabricated floor slab 1 is positioned, placed and fixed, the transverse steel bars 3 between the two prefabricated floor slabs 1 are tied in pairs by tying wires, so that the two become a whole, thereby improving the strength of the floor slab.

[0036] In a further embodiment of the present invention, the positioning and fixing mechanism includes: a fixing seat 8 arranged at the top of the longitudinal beam 6, a U-shaped steel bar 9 is welded to the bottom of the fixing seat 8, and the U-shaped steel bar 9 is pre-buried in the concrete of the longitudinal beam 6 when casting the longitudinal beam 6 to ensure the structural fixing strength so that the fixing seat 8 is fixed on the longitudinal beam 6; a cylindrical rod 10 welded to the bottom of the fixing seat 8, a threaded groove is opened at the top of the cylindrical rod 10, and a movable hole is opened at the top of the fixing seat 8, and the movable hole is connected to the threaded groove; two positioning columns 11 fixedly installed on the fixing seat 8 for positioning; two connecting blocks 12 respectively fixed to the sides of the two prefabricated floor slabs 1 close to each other, and the two connecting blocks 12 are each provided with a positioning hole compatible with the two positioning columns 11; and a fastening mechanism for fastening the two connecting blocks 12 to the fixing seat 8, and the fastening mechanism is arranged on the fixing seat 8.

[0037] In this embodiment, when hoisting and placing the prefabricated floor 1, the workers fine-tune the prefabricated floor 1 so that the positioning holes of the four connecting blocks 12 are aligned with the four positioning columns 11 on the four fixing seats 8. The hoisting machine then lowers the prefabricated floor 1 so that the positioning holes of the connecting blocks 12 are installed on the positioning columns 11, thereby positioning and placing the prefabricated floor 1 to avoid deviation. In a further embodiment of the present invention, the fastening mechanism includes: a screw 13 that passes through a movable hole on the fixing seat 8 and is threadedly connected to the thread groove of the cylindrical rod 10; a knob 14 that is fixedly mounted on the top of the screw 13 and is used for hand tightening and also for twisting with a wrench; a pressure block 15 that is rotatably sleeved on the screw 13 and contacts the bottom of the knob 14, the pressure block 15 is used to press the connecting block 12 onto the fixing seat 8, and limiting columns 16 are fixedly mounted on the bottom of the two connecting blocks 12, and the two limiting columns 16 are located in the positioning holes on the two connecting blocks 12, and the two limiting columns 16 are respectively adapted to the two positioning holes to reliably realize the positioning of the connecting plate 12.

[0038] In this embodiment, after the prefabricated floor 1 is placed, the screw 13 is passed through the movable hole and screwed to make it fit into the thread groove, and in the process of screwing the screw 13, the two limiting columns 16 at the bottom of the pressing block 15 are aligned with the positioning holes of the connecting block 12 until the limiting columns 16 enter the positioning holes and the pressing block 15 presses the connecting block 12, so that the prefabricated floor 1 is fixed on the longitudinal beam 6. In a further embodiment of the present invention, a supporting template 17 is provided between the two longitudinal beams 6 and below the joint of the two prefabricated floor slabs 1, and a plurality of pillars 18 are supported at the bottom of the supporting template 17.

[0039] In this embodiment, after the transverse reinforcement 3 between two adjacent precast slabs 1 is tied together by wire, and the longitudinal reinforcement 2 and the main reinforcement cage 7 are tied together by wire, the knob 14 can be turned in the opposite direction to remove the fastening mechanism; then, the main reinforcement cage 7 for the cast-in-place slab can be tied on the precast slab 1, and then concrete is poured, and the concrete is filled into the joint between the two precast slabs 1. The support formwork 17 is used to prevent the concrete mortar from falling from the joint. In a further embodiment of the present invention, the same precast slab 1 is assembled on two longitudinal beams 6 by four positioning and fixing mechanisms, and two positioning mechanisms (positioning and fixing mechanisms) are shared between two adjacent precast slabs 1, and the positioning mechanisms can be removed after use.

[0040] In this embodiment, two adjacent prefabricated floor slabs 1 are fixed on the side close to each other by two positioning and fixing mechanisms, so that the placement position between the two adjacent prefabricated floor slabs 1 is deviated, so that the prefabricated floor slabs 1 on the entire building can be installed accurately. In summary, by setting a positioning and fixing mechanism on the longitudinal beam 6, the prefabricated floor slab 1 can be positioned and placed to avoid large deviations in the placement position; and it is fixed to avoid the prefabricated floor slab 1 from moving or even falling during the construction process. Compared with the relevant technology, by setting a positioning and fixing mechanism on the longitudinal beam 6 supporting the prefabricated floor slab 1, the prefabricated floor slab 1 can be positioned and placed by the positioning and fixing mechanism before the longitudinal steel bars 2 between the adjacent prefabricated floor slabs 1 are bundled, and before the transverse steel bars 3 are bundled with the main steel cage 7 on the longitudinal beam 6, the prefabricated floor slab 1 can be positioned and placed by the positioning and fixing mechanism to avoid large deviations in the placement position, and the prefabricated floor slab 1 can be fixed to avoid the movement of the prefabricated floor slab 1 during the construction process, and even avoid its falling and causing safety accidents.

[0041] The prefabricated floor fixing device of the present invention, when the structure is set, a longitudinal beam 6 is set to carry the prefabricated floor 1. In order to accurately position the prefabricated floor 1, a positioning mechanism is set on the longitudinal beam 6. The positioning mechanism is arranged between the gaps of adjacent prefabricated floor slabs 1. The positioning mechanism is fixed on the longitudinal beam 6, and the connecting block 12 is a fixed structure. The connecting block 12 can be against the side of the prefabricated floor 1 to achieve reliable positioning of the prefabricated floor 1. The structure of the present invention is provided with a positioning and fixing mechanism on the longitudinal beam 6 supporting the prefabricated floor 1. Before the transverse steel bars 3 between adjacent prefabricated floor slabs 1 are bundled, and before the longitudinal steel bars 2 are bundled with the main steel cage 7 on the longitudinal beam 6, the prefabricated floor 1 can be positioned and placed by the positioning mechanism, ensuring that the prefabricated floor 1 is accurately and quickly placed at the corresponding position on the longitudinal beam 6, avoiding large deviations in the placement position, and after the prefabricated floor 1 is placed in place, the positioning mechanism reliably fixes the prefabricated floor 1, avoiding the movement of the prefabricated floor during the construction process, and even avoiding its falling and causing safety accidents.

[0042] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An assembled floor fixing device, characterized in that: The invention comprises a longitudinal beam (6), a fixing seat (8) is arranged at the top of the longitudinal beam (6), a steel bar (9) is connected to the bottom of the fixing seat (8), and the steel bar (9) is pre-buried in the longitudinal beam (6); a cylindrical rod (10) is connected to the bottom of the fixing seat (8), a threaded groove is arranged at the top of the cylindrical rod (10), a movable hole is arranged at the top of the fixing seat (8), and the movable hole is communicated with the threaded groove; a positioning column (11) is fixedly arranged on the fixing seat (8); a connecting block (12) is arranged on the fixing seat (8), the connecting block (12) is close to the side of the prefabricated floor slab (1), a positioning hole adapted to the positioning column (11) is arranged on the connecting block (12), and a fastening mechanism passes through the connecting block (12) and the threaded groove of the fixing seat (8) to connect the cylindrical rod (10).

2. The assembled floor fixing device according to claim 1, characterized in that: The assembled floor fixing device comprises a plurality of longitudinal beams (6) for supporting the prefabricated floor (1), each end of each prefabricated floor (1) is placed on a corresponding longitudinal beam (6), longitudinal steel bars (2) and transverse steel bars (3) are arranged on the side of the prefabricated floor (1), and a plurality of hanging bars (4) are arranged on the top of the prefabricated floor (1), and the plurality of hanging bars (4) are connected to the connecting bars (5).

3. The assembled floor fixing device according to claim 1 or 2, characterized in that: A main steel cage (7) is arranged on the longitudinal beam (6), and the longitudinal steel bars (2) are connected to the main steel cage (7) on the corresponding longitudinal beam (6) by wire tying, and a plurality of positioning mechanisms are arranged on the longitudinal beam (6).

4. The assembled floor fixing device according to claim 1 or 2, characterized in that: The fastening mechanism comprises: a screw (13) penetrating a movable hole on a fixing seat (8) and being threadedly connected to a thread groove of a cylindrical rod (10); a knob (14) fixedly mounted on the top of the screw (13); a pressure block (15) rotatably sleeved on the screw (13) and in contact with the bottom of the knob (14); a limiting column (16) fixedly mounted on the bottom of the connecting block (12); the limiting column (16) is located in a positioning hole of the connecting block (12); and the limiting column (16) is adapted to the positioning hole.

5. The assembled floor fixing device according to claim 1 or 2, characterized in that: A supporting formwork (17) is arranged between adjacent longitudinal beams (6), the supporting formwork (17) being located below the joint of two prefabricated floor slabs (1), and the bottom of the supporting formwork (17) is supported by a plurality of pillars (18).

6. The assembled floor fixing device according to claim 2, characterized in that: The longitudinal steel bars (2) extend to the outside of the prefabricated floor slab (1) and have ends in a hook shape, the transverse steel bars (3) extend to the outside of the prefabricated floor slab (1) and have ends in a hook shape, and the transverse steel bars 3) between two adjacent prefabricated floor slabs (1) are arranged in a staggered manner.

7. The assembled floor fixing device according to claim 1 or 2, characterized in that: Two adjacent prefabricated floor slabs (1) share two positioning mechanisms, and each positioning mechanism is arranged on a corresponding longitudinal beam (6).

8. The assembled floor fixing device according to claim 1 or 2, characterized in that: After the positioning mechanism positions the prefabricated floor slab (1), the binding wires bind and connect the corresponding transverse steel bars (3) staggered between adjacent prefabricated floor slabs (1).

9. The assembled floor fixing device according to claim 2, characterized in that: The connecting rib (5) is fixedly connected to the hanging rib (4), and the steel bar (9) is a U-shaped structure.

10. The assembled floor fixing device according to claim 1 or 2, characterized in that: The connecting blocks (12) include two, the positioning columns (11) include two, and the limiting columns (16) include two. The side surface of each connecting block (12) contacts a corresponding prefabricated floor slab (1).

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