Waterproof prefabricated composite floor slab structure

Abstract

The utility model discloses a waterproof type prefabricated composite floor slab structure, which comprises a prefabricated floor slab, a waterproof layer, a waterproof layer and a waterproof layer, the prefabricated floor slab comprises a prefabricated bottom plate and embedding grooves, and the embedding grooves are formed in two sides of the prefabricated bottom plate; the anti-bending assembly comprises a cover box, reinforcing plates, connecting plates, second through holes and locking rods, the cover box is attached to one end of the prefabricated bottom plate, the reinforcing plates are fixed in the cover box and evenly distributed, the connecting plates are fixed to the two ends of the cover box, the second through holes are formed in one ends of the connecting plates, and the locking rods are connected into the second through holes in a threaded mode. The problems that according to an existing prefabricated floor slab, a reinforcing mesh composed of longitudinal reinforcing steel bars and transverse reinforcing steel bars is poured in a prefabricated bottom plate, one ends of two prefabricated floor slabs are spliced through the longitudinal reinforcing steel bars, the longitudinal reinforcing steel bars are often affected by external force in the transportation process, the later-period splicing effect and splicing tightness are affected, then gaps at the splicing position are large, and the splicing effect is affected are solved. And later pouring is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of precast composite floor slabs, in particular to a waterproof precast composite floor slab structure. Background Technique

[0002] The precast composite floor slab is a new type of floor slab structure, which consists of a precast part and a cast-in-place part. This kind of floor slab combines the advantages of two construction methods, retaining both the integrity and continuity of the traditional cast-in-place floor slab and incorporating the advantages of factory production and quality control of precast components.

[0003] By querying a Chinese patent for a precast composite floor slab with the publication number CN 213014918 U, it includes a precast bottom plate. The top end of the precast bottom plate is fixedly connected with a concrete composite layer. A waterproof layer is arranged on the top end of the concrete composite layer. A heat-resistant layer is arranged inside the precast bottom plate. A wire mesh is arranged inside the heat-resistant layer. A foam board is arranged at the bottom side of the wire mesh inside the heat-resistant layer. A sound-insulating layer is arranged at the bottom side of the heat-resistant layer inside the precast bottom plate. The bottom end of the precast bottom plate is fixedly connected with a bottom pad. In the utility model, by arranging a waterproof layer on the surface of the concrete composite layer, the waterproof ability of the floor slab is increased, and the overall structural strength decline caused by the floor slab being affected by moisture is prevented.

[0004] However, in the existing precast floor slabs, a steel bar mesh composed of longitudinal steel bars and transverse steel bars is cast in the precast bottom plate. One end of two precast floor slabs is spliced through the longitudinal steel bars. During the transportation process, the longitudinal steel bars are often bent under the influence of external forces, affecting the later assembly effect and the tightness of the assembly. Furthermore, it will lead to a large gap at the splicing position, affecting the later casting. Therefore, a waterproof precast composite floor slab structure needs to be provided to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof precast composite floor slab structure to solve the problems raised in the above background technique, that is, in the existing precast floor slabs, a steel bar mesh composed of longitudinal steel bars and transverse steel bars is cast in the precast bottom plate. One end of two precast floor slabs is spliced through the longitudinal steel bars. During the transportation process, the longitudinal steel bars are often bent under the influence of external forces, affecting the later assembly effect and the tightness of the assembly. Furthermore, it will lead to a large gap at the splicing position, affecting the later casting.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a waterproof precast composite floor slab structure, including:

[0008] A precast floor slab, the precast floor slab includes a precast bottom plate and fitting grooves, and the fitting grooves are opened on both sides of the precast bottom plate;

[0009] Anti-bending component, the anti-bending component includes a cover box, a reinforcing plate, a connecting plate, a second through hole and a locking rod. The cover box is attached to one end of the precast floor slab. The reinforcing plates are fixed inside the cover box and are evenly distributed. The connecting plates are fixed at both ends of the cover box. The second through hole is opened at one end of the connecting plate, and the locking rod is screwed into the second through hole.

[0010] Furthermore, the anti-bending component further includes a first through hole, a bolt and a third through hole. The first through hole is opened in the middle of both ends of the cover box. The third through hole is opened at the other end of the connecting plate away from the second through hole. The bolt is inserted into the first through hole and the third through hole.

[0011] Furthermore, the precast floor slab further includes a precast waterproof layer, longitudinal steel bars, a fitting opening and truss steel bars. The precast waterproof layer is cast on the upper and lower surfaces of the precast floor slab. The longitudinal steel bars are cast inside the precast floor slab, and one end extends out of the precast floor slab. The fitting opening is opened at the end of the precast floor slab opposite to the extending end of the longitudinal steel bars. The lower ends of the truss steel bars are cast inside the precast floor slab and the precast waterproof layer.

[0012] Furthermore, it further includes an anti-blocking component. The anti-blocking component includes a support plate and a plunger. The support plate is attached to one end of the precast floor slab where the fitting opening is opened. One end of the plunger is fixed to the side of the support plate, and the other end is inserted into the fitting opening.

[0013] Furthermore, the anti-blocking component further includes a fixing block, a square through hole and a groove. The fixing blocks are fixed at both ends of the side of the support plate, and the fixing blocks are inserted into the fitting groove. The groove is opened at one end of the fixing block, and the square through holes are opened on the upper and lower sides of the groove.

[0014] Furthermore, the anti-blocking component further includes a spring, a pressing plate and a clamping block. The pressing plate is inserted into the groove. One end of the clamping block is fixed to the end of the pressing plate located inside the groove, and the other end is inserted into the square through hole. The spring is fixed between the two clamping blocks.

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] First, in the present utility model, through the provided anti-bending component, before the precast floor slab leaves the factory, the third through hole on the connecting plate is aligned with the first through hole on the side of the cover box, the bolt is inserted and tightened. The cover box is attached to the extending end of the longitudinal steel bar of the precast floor slab. The connecting plates on both sides are inserted into the fitting groove. The locking rod is aligned with the second through hole and rotated and tightened until the locking rods on both sides are tightly pressed against the inside of the fitting groove. This setting can prevent the extending end of the longitudinal steel bar from being bent during transportation, affecting the later assembly.

[0017] Second, in the present utility model, through the anti-blocking component provided, before the precast floor slab leaves the factory, the plunger on the support plate is aligned with the fitting opening and inserted. Two persons respectively press the pressure plate in the groove, driving the clamping block to move into the groove along the square through-hole, and pulling the pressure plate to move the fixing block into the fitting groove until the support plate fits the precast bottom plate. Then release the pressure plate, and the spring extends, driving the clamping block to move out of the square through-hole until it fits the upper and lower side surfaces of the fitting groove. This setting can prevent sand and gravel from entering the fitting opening before the installation of the precast bottom plate, affecting the tightness during assembly. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the present utility model from the first perspective;

[0020] Figure 2 Schematic diagram of the overall structure of the present utility model from the second perspective;

[0021] Figure 3 Schematic diagram of the precast floor slab of the present utility model from the first perspective;

[0022] Figure 4 Schematic diagram of the precast floor slab of the present utility model from the second perspective;

[0023] Figure 5 Schematic diagram of the anti-bending component structure of the present utility model;

[0024] Figure 6 Schematic diagram of the anti-blocking component structure of the present utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 10. Precast bottom plate; 11. Precast waterproof layer; 12. Longitudinal steel bars; 13. Fitting opening; 14. Truss steel bars; 15. Fitting groove; 20. Cover box; 21. Reinforcing plate; 22. First through-hole; 23. Bolt; 24. Connecting plate; 25. Second through-hole; 26. Locking rod; 27. Third through-hole; 30. Support plate; 31. Plunger; 32. Fixing block; 33. Square through-hole; 34. Groove; 35. Spring; 36. Pressure plate; 37. Clamping block. Detailed Embodiments

[0027] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the drawings.

[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to Figures 1-5 As shown, this embodiment is a waterproof precast composite floor slab structure, including:

[0031] A precast floor slab, which includes a precast bottom plate 10 and a fitting groove 15. The fitting groove 15 is opened on both sides of the precast bottom plate 10;

[0032] The precast floor slab further includes a precast waterproof layer 11, longitudinal steel bars 12, a fitting opening 13 and truss steel bars 14. The precast waterproof layer 11 is cast on the upper and lower surfaces of the precast bottom plate 10. The longitudinal steel bars 12 are cast in the precast bottom plate 10 and one end extends out of the precast bottom plate 10. The fitting opening 13 is opened at one end of the precast bottom plate 10 opposite to the extending end of the longitudinal steel bars 12. The lower ends of the truss steel bars 14 are cast in the precast bottom plate 10 and the precast waterproof layer 11;

[0033] The precast bottom plate 10 plays a supporting role. The precast waterproof layer 11 has a waterproof effect. The longitudinal steel bars 12 play a strengthening role. The fitting opening 13 plays a connecting role. The truss steel bars 14 play a connecting and strengthening role. The fitting groove 15 facilitates later assembly.

[0034] An anti-bending component, which includes a cover box 20, a reinforcing plate 21, a connecting plate 24, a second through hole 25 and a locking rod 26. The cover box 20 is attached to one end of the precast bottom plate 10. The reinforcing plate 21 is fixed inside the cover box 20 and is evenly distributed. The connecting plate 24 is fixed at both ends of the cover box 20. The second through hole 25 is opened at one end of the connecting plate 24. The locking rod 26 is screwed in the second through hole 25;

[0035] The anti-bending component further includes a first through hole 22, a bolt 23 and a third through hole 27. The first through hole 22 is opened in the middle of both ends of the cover box 20. The third through hole 27 is opened at the other end of the connecting plate 24 away from the second through hole 25. The bolt 23 is inserted into the first through hole 22 and the third through hole 27;

[0036] The cover box 20 plays a protective role. The reinforcing plate 21 plays a strengthening role. The connecting plate 24 plays a connecting role. The first through hole 22, the third through hole 27 and the bolt 23 play a connecting role. The second through hole 25 plays a connecting role. The locking rod 26 plays a fastening role.

[0037] Working principle:

[0038] Before the precast floor slab leaves the factory, the third through hole 27 on the connecting plate 24 is aligned with the first through hole 22 on the side of the cover box 20, the bolt 23 is inserted and tightened, the cover box 20 is attached to the extending end of the longitudinal steel bar 12 of the precast bottom plate 10, the connecting plates 24 on both sides are inserted into the fitting groove 15, the locking rod 26 is aligned with the second through hole 25 and rotated and tightened until the locking rods 26 on both sides are tightly pressed in the fitting groove 15.

[0039] This step can prevent the extending end of the longitudinal steel bar 12 from being bent during transportation, which affects the later assembly.

[0040] Please refer to Figure 6 , based on the above embodiment, this embodiment further includes:

[0041] A anti-blocking component, which includes a support plate 30 and a plunger 31. The support plate 30 is attached to one end of the precast bottom plate 10 provided with a fitting opening 13. One end of the plunger 31 is fixed to the side of the support plate 30, and the other end is inserted into the fitting opening 13;

[0042] The anti-blocking component further includes a fixing block 32, a square through hole 33 and a groove 34. The fixing blocks 32 are fixed to both ends of the side of the support plate 30, and the fixing blocks 32 are inserted into the fitting groove 15. The groove 34 is opened at one end of the fixing block 32, and the square through hole 33 is opened on the upper and lower sides of the groove 34;

[0043] The anti-blocking component further includes a spring 35, a pressing plate 36 and a clamping block 37. The pressing plate 36 is inserted into the groove 34. One end of the clamping block 37 is fixed to one end of the pressing plate 36 located in the groove 34, and the other end is inserted into the square through hole 33. The spring 35 is fixed between the two clamping blocks 37;

[0044] The support plate 30 plays a connecting role, the plunger 31 plays a protective role, the fixing block 32 plays a supporting role, the square through hole 33 facilitates the movement of the clamping block 37, the groove 34 plays a receiving role, the spring 35 has an extrusion function, the pressing plate 36 facilitates the operation of the clamping block 37, and the clamping block 37 plays a connecting role.

[0045] Working principle:

[0046] Before the precast floor slab leaves the factory, the plunger 31 on the support plate 30 is aligned with the fitting opening 13 and inserted. Two people respectively press the pressing plate 36 in the groove 34, drive the clamping block 37 to move into the groove 34 along the square through hole 33, and pull the pressing plate 36 to move the fixing block 32 into the fitting groove 15 until the support plate 30 fits the precast bottom plate 10. Release the pressing plate 36, the spring 35 extends, drive the clamping block 37 to move out of the square through hole 33 until it fits the upper and lower sides of the fitting groove 15.

[0047] This step can prevent sand and gravel from entering the fitting opening 13 before the precast floor slab 10 is installed, thus affecting the tightness during assembly.

[0048] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waterproof precast composite floor slab structure, characterized in that, Comprising: A precast floor slab, the precast floor slab comprising a precast bottom plate (10) and a fitting groove (15), the fitting groove (15) being opened on both sides of the precast bottom plate (10); An anti-bending component, the anti-bending component comprising a cover box (20), a reinforcing plate (21), a connecting plate (24), a second through hole (25) and a locking rod (26), the cover box (20) being attached to one end of the precast bottom plate (10), the reinforcing plate (21) being fixed inside the cover box (20) and evenly distributed, the connecting plate (24) being fixed to both ends of the cover box (20), the second through hole (25) being opened at one end of the connecting plate (24), and the locking rod (26) being screwed into the second through hole (25).

2. A waterproof precast composite floor slab structure according to claim 1, characterized in that, The anti-bending component further comprises a first through hole (22), a bolt (23) and a third through hole (27), the first through hole (22) being opened in the middle of both ends of the cover box (20), the third through hole (27) being opened at the other end of the connecting plate (24) away from the second through hole (25), and the bolt (23) being inserted into the first through hole (22) and the third through hole (27).

3. A waterproof precast composite floor slab structure according to claim 1, characterized in that, The precast floor slab further comprises a precast waterproof layer (11), longitudinal steel bars (12), a fitting opening (13) and truss steel bars (14), the precast waterproof layer (11) being cast on the upper and lower surfaces of the precast bottom plate (10), the longitudinal steel bars (12) being cast inside the precast bottom plate (10) and one end extending out of the precast bottom plate (10), the fitting opening (13) being opened at one end of the precast bottom plate (10) opposite to the extending end of the longitudinal steel bars (12), and the lower ends of the truss steel bars (14) being cast inside the precast bottom plate (10) and the precast waterproof layer (11).

4. A waterproof precast composite floor slab structure according to claim 1, characterized in that, It further comprises an anti-blocking component, the anti-blocking component comprising a support plate (30) and a plunger (31), the support plate (30) being attached to one end of the precast bottom plate (10) where the fitting opening (13) is opened, and one end of the plunger (31) being fixed to the side of the support plate (30) and the other end being inserted into the fitting opening (13).

5. A waterproof precast composite floor slab structure according to claim 4, characterized in that, The anti-blocking component further comprises a fixing block (32), a square through hole (33) and a groove (34), the fixing block (32) being fixed to both ends of the side of the support plate (30), and the fixing block (32) being inserted into the fitting groove (15), the groove (34) being opened at one end of the fixing block (32), and the square through hole (33) being opened on the upper and lower sides of the groove (34).

6. A waterproof precast composite floor slab structure according to claim 5, characterized in that, The anti-blocking component further comprises a spring (35), a pressing plate (36) and a clamping block (37), the pressing plate (36) being inserted into the groove (34), one end of the clamping block (37) being fixed to the end of the pressing plate (36) located inside the groove (34), the other end being inserted into the square through hole (33), and the spring (35) being fixed between the two clamping blocks (37).

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