Prefabricated concrete floor structure of full-prefabricated assembly type concrete frame

Abstract

The invention relates to the technical field of prefabricated concrete floor slabs, in particular to a prefabricated concrete floor slab structure of a full-prefabricated assembly type concrete frame, which comprises a floor slab outer frame, and a plurality of steel bars are arranged in the floor slab outer frame; the four first assembling openings are formed in the four corners of the top face of the floor outer frame correspondingly; the four second assembling openings are formed in the four corners of the bottom face of the floor outer frame correspondingly; the cable-stayed structure is arranged on the floor outer frame; and the tensioning structure is arranged in the floor outer frame. Compared with the prior art, the reinforcing steel bars are fixed in the structure to form a transverse and longitudinal staggered layout, a solid foundation is provided for subsequent steps, and then the stability of the whole structure is ensured by installing the four anti-falling hooks on the reinforcing steel bars at the four corners and fixing the installation base on the reinforcing steel bars in the middle.

Description

Technical Field

[0001] The invention relates to the technical field of precast concrete floor slabs, and in particular to a precast concrete floor slab structure of a fully precast assembled concrete frame. Background Art

[0002] The fully prefabricated assembled concrete frame is a building structure system that uses prefabricated concrete components for assembly and connection. Among them, the precast concrete floor slab is an important component of the fully prefabricated assembled concrete frame. The precast concrete floor slab is a concrete floor slab made in the factory through mechanized production according to the design requirements. These floors have the advantages of precise size, controllable quality and high production efficiency. In the fully prefabricated assembled concrete frame, the precast concrete floor slab and precast beams, precast columns and other components together constitute the overall structure, and a stable building structure system is formed through assembly and connection.

[0003] After searching, the Chinese patent with announcement number CN216428717U discloses a precast concrete floor and a precast concrete floor assembly to solve the problem that the precast floor support connection is poor in stability and easy to collapse. The precast concrete floor includes internal steel bars and a concrete hollow floor. The bottom of the concrete hollow floor is provided with a steel plate corresponding to the connection where the steel frame beam is placed. The middle of the steel plate is provided with a steel plate through hole for high-strength bolts to pass through and fix. The steel plate is connected to the internal steel bars as a whole, and the concrete hollow floor is provided with a floor through hole at a position corresponding to the steel plate through hole. Compared with the prior art, the precast concrete floor proposed in the above scheme will not cause additional pressure on the steel frame beam and the floor, causing local damage. Compared with the existing assembled composite floor and traditional precast floor, it has the advantages of high stability, easy assembly, convenient construction, high efficiency, high strength, and low comprehensive cost. However, the above scheme still has the following shortcomings when it is actually used:

[0004] The precast concrete slab proposed in the above scheme is generally provided with a plurality of crisscrossing steel bars inside to ensure the structural strength of the precast concrete slab. For the precast concrete slab of this structure, if the steel bars are improperly arranged or not firmly fixed, the concrete may shift or deform during the pouring process, thereby affecting the overall quality of the slab, which limits the overall structural strength of the precast concrete slab.

[0005] Therefore, the present application provides a precast concrete floor structure of a fully precast assembled concrete frame. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a precast concrete floor structure with a fully prefabricated assembled concrete frame.

[0007] Based on the above purpose, the present invention provides a precast concrete floor structure of a fully prefabricated assembled concrete frame, comprising:

[0008] A floor slab outer frame, wherein a plurality of steel bars are arranged inside the floor slab outer frame;

[0009] Four first assembly openings are respectively opened at four corners of the top surface of the floor outer frame;

[0010] Four second assembly openings are respectively opened at four corners of the bottom surface of the floor outer frame;

[0011] A cable-stayed structure, arranged on the outer frame of the floor slab;

[0012] A tensioning structure is arranged inside the outer frame of the floor slab;

[0013] Four first connection structures are respectively arranged at the four corners of the top surface of the floor outer frame;

[0014] Four second connection structures are respectively arranged at the four corners of the bottom surface of the floor outer frame;

[0015] The eight clamping structures are respectively arranged on the four first connecting structures and the four second connecting structures.

[0016] Preferably, the cable-stayed structure comprises:

[0017] Four anti-slip hooks are respectively arranged at the four corners of the outer frame of the floor slab, and each of the anti-slip hooks is hooked on the steel bars at the corresponding position;

[0018] Four inclined steel cables are respectively fixedly connected to the four anti-drop hooks, and the four inclined steel cables together form an X-shaped structure.

[0019] Preferably, the tensioning structure comprises:

[0020] A mounting seat, arranged in the middle of the outer frame of the floor slab, the interior of the mounting seat being hollow;

[0021] Two through openings are both provided on the outer peripheral surface of the mounting seat;

[0022] A first rotating shaft is rotatably mounted inside the mounting seat, a top end of the first rotating shaft passes through a top surface of the mounting seat, and the first rotating shaft is rotatably connected to the mounting seat;

[0023] A second rotating shaft is rotatably mounted inside the mounting seat, a top end of the second rotating shaft passes through a top surface of the mounting seat, and the second rotating shaft is rotatably connected to the mounting seat;

[0024] A winding wheel, fixedly sleeved on the second rotating shaft, used for winding up the four inclined cables;

[0025] A first gear, fixedly sleeved on the second rotating shaft;

[0026] The second gear is fixedly sleeved on the first rotating shaft and meshes with the first gear.

[0027] Preferably, a knob is fixed to one end of the first rotating shaft located outside the mounting seat.

[0028] Preferably, a fixing structure is provided on the top surface of the mounting seat, and the fixing structure comprises:

[0029] Two connecting rods, both fixed on the top surface of the mounting seat;

[0030] A fixing ring, fixed to one end of the two connecting rods away from the mounting seat, and the fixing ring is sleeved on the second rotating shaft;

[0031] The fixing plate is fixed to one end of the second rotating shaft located outside the mounting seat. The fixing plate is placed above the fixing ring, and the bottom surface of the fixing plate and the top surface of the fixing ring are in contact with each other.

[0032] Preferably, the fixing ring and the second rotating shaft are coaxially arranged.

[0033] Preferably, the first connection structure comprises:

[0034] A first assembly block is placed on the top surface of the floor outer frame;

[0035] A slot is formed on the first assembly block.

[0036] 8. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 7, characterized in that the second connection structure comprises:

[0037] A second assembly block is placed on the bottom surface of the floor outer frame;

[0038] A limiting block, fixed on the bottom surface of the second assembly block;

[0039] The guide plate is fixed on the side surface of the second assembly block.

[0040] Preferably, the clamping structure comprises a clamping member and a driving member, and the clamping member comprises:

[0041] The outer cylinder has an open end and a closed surface at the other end;

[0042] Two openings are both provided on the outer peripheral surface of the outer cylinder;

[0043] Two pressing plates are slidably disposed in the two openings respectively, and each of the pressing plates is provided with an inclined surface;

[0044] The two stoppers are respectively fixed on the two pressing plates, and the two stoppers are both placed inside the outer cylinder.

[0045] Preferably, the driving member comprises:

[0046] A threaded column, threadedly sleeved in the outer cylinder;

[0047] A pressing block is fixed to one end of the threaded column located inside the outer cylinder, and the pressing block is in a truncated cone structure.

[0048] Beneficial effects of the present invention:

[0049] 1. The steel bars are fixed inside the structure to form a horizontal and vertical staggered layout, which provides a solid foundation for the subsequent steps. Subsequently, four anti-drop hooks are installed on the four corner steel bars and the mounting base is fixed on the middle steel bar to ensure the stability of the entire structure. Furthermore, the linkage mechanism of the knob, the first shaft, the second gear, the first gear and the second shaft is used to effectively reel in and tighten the four inclined cables to form an X-shaped structure. This innovative design not only greatly enhances the overall stability of the precast concrete floor, but also significantly improves its shear, bending and bearing capacity, ensuring excellent structural safety and durability under various working conditions.

[0050] 2. During the rotation of the second rotating shaft, the fixing plate on it will rotate synchronously. When the four inclined steel cables are successfully tightened to the predetermined state, the staff will promptly weld the fixing plate and firmly fix it on the fixing ring, so as to achieve accurate and stable fixation of the fixing plate position. After the fixing operation is completed, the second rotating shaft and the winding wheel driven by it will also be firmly fixed and will no longer rotate, further improving the stability of the four inclined steel cables. The welding connection between the fixing plate and the fixing ring ensures that the inclined steel cables can continue to maintain their stability and tension in a taut state, thereby effectively enhancing the structural strength and overall stability of the precast concrete floor slab;

[0051] 3. This problem is cleverly solved by introducing the design of four first assembly blocks and four second assembly blocks. Before stacking the precast concrete floor slabs, the staff fixes the four first assembly blocks at the four corners of the top surface of the floor slab, and fixes the four second assembly blocks at the four corners of the bottom surface of another floor slab. When the two floor slabs are stacked together, the limit blocks on the second assembly blocks will be accurately inserted into the slots on the first assembly blocks. This design not only ensures the stability in the stacked state, but also effectively avoids direct contact between the two floor slabs through the intervals between the assembly blocks, reduces the friction loss between the floor slabs during transportation, protects the integrity of the floor slab surface, and extends the service life; secondly, through the engagement of the limit blocks and the slots, the stability of the stacked state is improved, and the safety risks caused by shaking are reduced; finally, this design also makes the placement and transportation of precast concrete floor slabs more convenient and efficient, improves construction efficiency, and reduces transportation costs;

[0052] 4. After the first floor slab (with the first assembly block installed) is accurately installed in place, the staff uses the hoist to slowly move the second floor slab (with the second assembly block installed) downward. During this process, the staff will carefully adjust the position of the second floor slab so that the two guide plates on it are accurately aligned with the two slots on the first floor slab. As the floor slab continues to descend, the two guide plates will slide smoothly into the corresponding slots. This process not only achieves precise control of the position of the floor slab, but also ensures the installation accuracy between the two adjacent floor slabs. The precise guidance of the guide plates ensures the installation accuracy between the floor slabs. Finally, this design also reduces errors and rework during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0055] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0056] Figure 3 This is a structural diagram of two prefabricated floor slabs stacked one above the other;

[0057] Figure 4 This is a structural diagram of two prefabricated floor slabs connected horizontally;

[0058] Figure 5 is a structural schematic diagram of the tensioning structure;

[0059] Figure 6 is a structural schematic diagram of a first connecting structure and a clamping structure;

[0060] Figure 7 is a schematic cross-sectional structural diagram of a first connecting structure and a clamping structure;

[0061] Figure 8 for Figure 3 A magnified view of the structure at A;

[0062] Fig. 9 for Figure 4 A magnified view of the structure at B;

[0063] Fig.10 for Figure 5 Enlarged view of the structure at location C.

[0064] The markings in the figure are:

[0065] 1. Floor outer frame; 2. First assembly opening; 3. Second assembly opening; 41. Anti-drop hook; 42. Inclined steel cable; 51. Mounting seat; 52. Through-opening; 53. First rotating shaft; 54. Second rotating shaft; 55. Winding wheel; 56. First gear; 57. Second gear; 61. Connecting rod; 62. Fixing ring; 63. Fixing plate; 71. First assembly block; 72. Slot; 81. Second assembly block; 82. Limiting block; 83. Guide plate; 91. Outer cylinder; 92. Opening; 93. Pressing plate; 94. Stopper; 101. Threaded column; 102. Pressing block. DETAILED DESCRIPTION

[0066] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0067] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0068] like Figures 1 to 10 As shown, the precast concrete floor structure of the fully prefabricated assembled concrete frame includes a floor outer frame 1, and a plurality of steel bars are arranged inside the floor outer frame 1; four first assembly openings 2 are respectively opened at the four corners of the top surface of the floor outer frame 1; four second assembly openings 3 are respectively opened at the four corners of the bottom surface of the floor outer frame 1;

[0069] The precast concrete floor structure also includes a diagonal structure, which is arranged on the floor outer frame 1. The diagonal structure includes: four anti-detachment hooks 41, which are respectively arranged at the four corners of the floor outer frame 1, and each anti-detachment hook 41 is hooked on the steel bars at the corresponding position; four diagonal steel cables 42, which are respectively fixedly connected to the four anti-detachment hooks 41, and the four diagonal steel cables 42 together form an X-shaped structure;

[0070] like Figure 5 , Fig.10 As shown, the precast concrete floor structure also includes a tensioning structure, which is arranged inside the floor outer frame 1, and the tensioning structure includes: a mounting seat 51, which is arranged in the middle position of the floor outer frame 1, and the interior of the mounting seat 51 is hollow; two through-holes 52, both of which are opened on the outer peripheral surface of the mounting seat 51; a first rotating shaft 53, which is rotatably mounted inside the mounting seat 51, the top end of the first rotating shaft 53 passes through the top surface of the mounting seat 51, and the first rotating shaft 53 is rotatably connected to the mounting seat 51, and a knob is fixed to one end of the first rotating shaft 53 located outside the mounting seat 51; a second rotating shaft 54, which is rotatably mounted inside the mounting seat 51, the top end of the second rotating shaft 54 ​​passes through the top surface of the mounting seat 51, and the second rotating shaft 54 ​​is rotatably connected to the mounting seat 51; a winding wheel 55, which is fixedly mounted On the second rotating shaft 54, it is used to reel in four inclined cables 42; the first gear 56 is fixedly sleeved on the second rotating shaft 54; the second gear 57 is fixedly sleeved on the first rotating shaft 53 and meshes with the first gear 56. The top surface of the mounting seat 51 is provided with a fixing structure, which includes: two connecting rods 61, both fixed on the top surface of the mounting seat 51; a fixing ring 62, fixed on one end of the two connecting rods 61 away from the mounting seat 51, the fixing ring 62 is sleeved on the second rotating shaft 54, and the fixing ring 62 and the second rotating shaft 54 ​​are coaxially arranged; a fixing plate 63, fixed on one end of the second rotating shaft 54 ​​located outside the mounting seat 51, the fixing plate 63 is placed above the fixing ring 62, and the bottom surface of the fixing plate 63 and the top surface of the fixing ring 62 are in contact with each other;

[0071] When manufacturing the precast concrete floor structure of the fully prefabricated assembled concrete frame proposed in the present invention, the staff fixes the steel bars inside the floor outer frame 1 so that the steel bars are arranged in a staggered manner horizontally and vertically. After arranging the steel bars, the staff hangs four anti-drop hooks 41 on the steel bars at the four corners of the floor outer frame 1, and then fixes the mounting seat 51 on the steel bars in the middle of the floor outer frame 1, and then turns the knob. When the knob is turned, it can drive the first rotating shaft 53 to rotate, and when the first rotating shaft 53 rotates, it drives the second gear 57 to rotate. When the second gear 57 rotates, it drives the first gear 56 meshing with it to rotate, which makes the second rotating shaft 54 ​​rotate. During the rotation process, the second rotating shaft 54 ​​can drive the winding wheel 55 to rotate. The winding wheel 5 During the rotation, the four inclined steel cables 42 can be rolled up until the four inclined steel cables 42 are in a taut state. In this case, the four inclined steel cables 42 form an X-shaped structure together to increase the structural strength of the precast concrete floor. This structure not only enhances the overall stability of the floor, but also significantly improves its shear resistance, bending resistance and bearing capacity, thereby ensuring the structural safety and durability of the precast concrete floor under various working conditions. Furthermore, the staff can weld the intersection of the inclined steel cables 42 and the steel bars together to improve the connection strength between the inclined steel cables 42 and the steel bars. After arranging the steel bars and the four inclined steel cables 42, the staff pours concrete into the interior of the floor outer frame 1 to form a precast concrete floor.

[0072] When the second rotating shaft 54 ​​rotates, the fixing piece 63 thereon will rotate accordingly. When the four inclined cables 42 are tightened, the staff will weld and fix the fixing piece 63 on the fixing ring 62 to fix the position of the fixing piece 63. When the fixing piece 63 is fixed, the second rotating shaft 54 ​​and the winding wheel 55 will also be fixed. This design can further improve the stability of the four inclined cables 42.

[0073] like Figure 3 , Figure 4 As shown, the precast concrete floor structure also includes four first connection structures, which are respectively arranged at the four corners of the top surface of the floor outer frame 1, and the first connection structure includes: a first assembly block 71, which is placed on the top surface of the floor outer frame 1; a slot 72, which is opened on the first assembly block 71; the precast concrete floor structure also includes four second connection structures, which are respectively arranged at the four corners of the bottom surface of the floor outer frame 1, and the second connection structure includes: a second assembly block 81, which is placed on the bottom surface of the floor outer frame 1; a limit block 82, which is fixed on the bottom surface of the second assembly block 81; a guide plate 83, which is fixed on the side of the second assembly block 81;

[0074] The precast concrete floor slab proposed by the present invention is also easy to place and transport. For traditional precast concrete floor slabs, the precast concrete floor slabs are usually stacked together during transportation. In this case, with the shaking of the vehicle during transportation, the contact surfaces between the upper and lower adjacent precast concrete floor slabs will wear each other, which will cause the precast concrete floor slabs to be damaged to a certain extent. For the precast concrete floor slabs in the present invention, before stacking the precast concrete floor slabs, the staff first fixes the four first assembly blocks 71 at the four corners of the top surface of the floor slab outer frame 1, and fixes the four second assembly blocks 81. The four limit blocks 82 on the four second assembly blocks 81 are respectively inserted into the four slots 72 on the four first assembly blocks 71 when the two floor outer frames 1 are stacked together. In this case, the four limit blocks 82 play a role of limiting the position between the two floor outer frames 1, thereby ensuring the stability of the two floor outer frames 1 in the stacked state. In addition, the arrangement of the four first assembly blocks 71 and the four second assembly blocks 81 can avoid direct contact between the two floor outer frames 1, thereby avoiding friction loss between the two floor outer frames 1 during transportation.

[0075] The precast concrete floor slab proposed by the present invention also has a guiding function during installation. When the precast concrete floor slab is installed on the building body, the staff fixes the four first assembly blocks 71 at the four corners of the top surface of the floor slab outer frame 1, fixes the four second assembly blocks 81 at the four corners of the top surface of another floor slab outer frame 1, and makes the guide plates 83 on the second assembly blocks 81 face the slots 72 on the first assembly blocks 71. After the floor slab outer frame 1 with the first assembly blocks 71 is installed in place, the staff uses the sling to move the floor slab outer frame 1 with the second assembly blocks 81 downward. In this process, the staff aligns the two guide plates 83 on the floor slab outer frame 1 with the two slots 72 on the other floor slab outer frame 1, respectively, so that the two guide plates 83 slide into the two slots 72, respectively, so as to realize the precise control of the position of the floor slab outer frame 1. The guiding function of the slots 72 and the guide plates 83 facilitates the installation of the floor slab outer frame 1 and ensures the installation accuracy between two adjacent floor slab outer frames 1.

[0076] like Figure 6 , Figure 7As shown, eight clamping structures are respectively arranged on four first connection structures and four second connection structures, the clamping structures include a clamping member and a driving member, and the clamping member includes: an outer cylinder 91, one end of which is an opening 92-shaped, and the other end is a closed surface; two openings 92, both of which are opened on the outer circumferential surface of the outer cylinder 91; two clamping plates 93, respectively slidably arranged in the two openings 92, and each clamping plate 93 is provided with an inclined surface; two stoppers 94, respectively fixed on the two clamping plates 93, and the two stoppers 94 are both placed inside the outer cylinder 91, and the driving member includes: a threaded column 101, which is threadedly sleeved in the outer cylinder 91; a pressing block 102, fixed to one end of the threaded column 101 located inside the outer cylinder 91, and the pressing block 102 is a truncated cone structure;

[0077] As for the first assembly block 71 and the second assembly block 81, they are installed in the first assembly port 2 or the second assembly port 3 through a clamping structure. Specifically, for the clamping structure, the clamping structure is composed of a clamping member and a driving member. During installation, the staff first inserts the outer cylinder 91 into the first assembly port 2 or the second assembly port 3, and then rotates the threaded column 101 to move the threaded column 101 in the outer cylinder 91. During the movement of the threaded column 101, the pressing block 102 thereon will squeeze the inclined surfaces on the two clamping plates 93. When the two clamping plates 93 are squeezed, the two clamping plates 93 can be simultaneously The two clamping plates 93 move step by step and move away from each other, which makes the two clamping plates 93 jointly press the inner surface of the first assembly port 2 or the second assembly port 3, thereby fixing the outer cylinder 91. When the first assembly block 71 and the second assembly block 81 need to be disassembled, the staff rotates the threaded column 101 in the opposite direction to separate the clamping block 102 from the two clamping plates 93, thereby releasing the restriction of the clamping block 102, and the two clamping plates 93 can move freely. The staff can directly pull out the outer cylinder 91 from the first assembly port 2 or the second assembly port 3. By setting the clamping structure, the first assembly block 71 and the second assembly block 81 can be quickly disassembled and assembled.

[0078] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0079] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A precast concrete floor structure of a fully prefabricated assembled concrete frame, characterized in that: include: A floor slab outer frame (1), wherein a plurality of steel bars are arranged inside the floor slab outer frame (1); Four first assembly openings (2) are respectively opened at four corners of the top surface of the floor slab outer frame (1); Four second assembly openings (3) are respectively opened at four corners of the bottom surface of the floor slab outer frame (1); A cable-stayed structure, arranged on the floor outer frame (1); A tensioning structure, arranged inside the floor slab outer frame (1); Four first connection structures are respectively arranged at the four corners of the top surface of the floor slab outer frame (1); Four second connection structures are respectively arranged at four corners of the bottom surface of the floor slab outer frame (1); The eight clamping structures are respectively arranged on the four first connecting structures and the four second connecting structures.

2. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 1 is characterized in that: The cable-stayed structure comprises: Four anti-slip hooks (41) are respectively arranged at the four corners of the floor slab outer frame (1), and each of the anti-slip hooks (41) is hooked on a steel bar at a corresponding position; The four inclined steel cables (42) are respectively fixedly connected to the four anti-detachment hooks (41), and the four inclined steel cables (42) together form an X-shaped structure.

3. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 2 is characterized in that: The tensioning structure comprises: A mounting seat (51) is arranged at a middle position of the floor outer frame (1), and the interior of the mounting seat (51) is hollow; Two through openings (52) are both formed on the outer peripheral surface of the mounting seat (51); A first rotating shaft (53) is rotatably mounted inside the mounting seat (51), the top end of the first rotating shaft (53) passes through the top surface of the mounting seat (51), and the first rotating shaft (53) and the mounting seat (51) are rotatably connected; A second rotating shaft (54) is rotatably mounted inside the mounting seat (51), the top end of the second rotating shaft (54) passes through the top surface of the mounting seat (51), and the second rotating shaft (54) and the mounting seat (51) are rotatably connected; A winding wheel (55) is fixedly sleeved on the second rotating shaft (54) and is used for winding up the four inclined cables (42); A first gear (56) is fixedly sleeved on the second rotating shaft (54); The second gear (57) is fixedly sleeved on the first rotating shaft (53) and meshes with the first gear (56).

4. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 3 is characterized in that: A knob is fixed to one end of the first rotating shaft (53) located outside the mounting seat (51).

5. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 4 is characterized in that: The top surface of the mounting seat (51) is provided with a fixing structure, and the fixing structure comprises: Two connecting rods (61) are both fixed on the top surface of the mounting seat (51); A fixing ring (62) fixed to one end of the two connecting rods (61) away from the mounting seat (51), and the fixing ring (62) is sleeved on the second rotating shaft (54); A fixing plate (63) is fixed to one end of the second rotating shaft (54) located outside the mounting seat (51), and the fixing plate (63) is placed above the fixing ring (62), and the bottom surface of the fixing plate (63) and the top surface of the fixing ring (62) are in contact with each other.

6. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 5, characterized in that: The fixing ring (62) and the second rotating shaft (54) are coaxially arranged.

7. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 1 is characterized in that: The first connection structure comprises: A first assembly block (71) is placed on the top surface of the floor outer frame (1); A slot (72) is formed on the first assembly block (71).

8. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 7, characterized in that: The second connection structure comprises: A second assembly block (81) is placed on the bottom surface of the floor outer frame (1); A limiting block (82) fixed on the bottom surface of the second assembly block (81); The guide plate (83) is fixed on the side surface of the second assembly block (81).

9. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 1, characterized in that: The clamping structure includes a clamping member and a driving member, and the clamping member includes: The outer cylinder (91) has an opening (92) at one end and a closed surface at the other end; Two openings (92) are both provided on the outer peripheral surface of the outer cylinder (91); Two pressing plates (93) are respectively slidably disposed in the two openings (92), and each of the pressing plates (93) is provided with an inclined surface; The two stoppers (94) are respectively fixed on the two pressing plates (93), and the two stoppers (94) are both placed inside the outer cylinder (91).

10. The precast concrete floor structure of the fully prefabricated assembled concrete frame according to claim 9, characterized in that: The driving member comprises: A threaded column (101) threadably sleeved in the outer cylinder (91); A pressing block (102) is fixed to one end of the threaded column (101) located inside the outer cylinder (91), and the pressing block (102) is a truncated cone structure.

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