Laminated floor slab with embedded positioning pieces

Abstract

The utility model discloses a composite floor slab with a pre-embedded positioning piece, which relates to the technical field of fabricated buildings and comprises a prefabricated slab, a pre-embedded bolt is arranged in the prefabricated slab, a threaded hole is formed in the bottom end of the pre-embedded bolt, the pre-embedded bolt is connected with a long screw rod through the threaded hole, and the long screw rod is connected with the pre-embedded positioning piece. A pouring belt is reserved between every two adjacent prefabricated slabs in the left-right direction, a longitudinal formwork is arranged under the pouring belts, steel pipe sets are arranged at the bottoms of the longitudinal formworks at equal intervals, and clamps shaped like the Chinese character'shan 'are arranged on the portions, below the steel pipe sets, of the long screws. When two prefabricated slabs are spliced, the prefabricated slabs, the formworks and the bottom supporting columns can be relatively fixed through mutual cooperation of the embedded bolts, the long screws, the E-shaped clamps, the nuts and the steel pipes, and the situation that when concrete is poured on the prefabricated slabs, the prefabricated slabs shift, and consequently the composite floor slab is failed to install is avoided; therefore, the one-time installation success rate of the composite floor slab is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a composite floor slab with embedded positioning parts. Background Technique

[0002] A prefabricated building refers to a building in which a large amount of on-site operation work in the traditional construction method is transferred to a factory. Building components and fittings are processed and manufactured in the factory and transported to the building construction site, and then assembled and installed on-site through reliable connection methods. In prefabricated buildings, the composite slab is the most widely used component among prefabricated components of prefabricated buildings, and its construction quality has an important impact on the entire project. The composite slab is an assembled integral floor slab formed by laminating a precast composite slab and a cast-in-place reinforced concrete layer.

[0003] At present, during the installation process of the composite floor slab, since the precast slab of the composite floor slab is directly hoisted on the supporting structure, when the cast-in-place layer is poured, the composite floor slab is easily impacted by the cast-in-place concrete and displaced, resulting in a large deviation between the installation position of the composite floor slab and the actual requirements, affecting the structural safety, and there is also a possibility of leakage of mortar, so that the success rate of the first installation of the composite floor slab is relatively low and needs to be readjusted. Content of the Utility Model

[0004] The purpose of the utility model is to provide a composite floor slab with embedded positioning parts to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A composite floor slab with embedded positioning parts includes a precast slab. Embedded bolts are arranged inside the precast slab. Threaded holes are opened at the bottom ends of the embedded bolts. The embedded bolts are connected with long screws through the threaded holes. A pouring belt is reserved between two adjacent precast slabs on the left and right. A longitudinal formwork is arranged directly below the pouring belt. Steel pipe groups are arranged at equal intervals at the bottom of the longitudinal formwork. U-shaped cards are arranged on the long screws below the steel pipe groups. Nuts are arranged at the bottoms of the U-shaped cards. The nuts are threadedly connected with the long screws. The U-shaped cards clamp two steel pipes from the bottom of the steel pipe groups. A plurality of splicing protrusions are arranged at equal intervals on the four sides of the precast slab.

[0007] As a further scheme of the utility model: The splicing protrusions are integrally T-shaped.

[0008] As a further scheme of the utility model: The splicing protrusions and the reserved steel bars extending from the side of the precast slab are arranged in a staggered manner.

[0009] As a further scheme of the utility model: The steel pipe group includes two steel pipes. The two steel pipes are arranged side by side. The long screw is located between the two steel pipes.

[0010] As a further solution of the present utility model: a transverse template is welded in the middle of the longitudinal template and is arranged in a cross shape with it, and support columns are arranged below the transverse template.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, embedded bolts are arranged inside the precast slab. When two precast slabs are spliced, through the mutual cooperation of the embedded bolts, long screws, U-shaped cards, nuts and steel pipes, the precast slab can be relatively fixed with the template and the bottom support column, avoiding the displacement of the precast slab during the pouring of concrete on the precast slab, resulting in the failure of the installation of the composite floor slab, thereby improving the success rate of the first installation of the composite floor slab.

[0013] 2. In the present utility model, splicing protrusions are arranged around the precast slab, and the splicing protrusions are in a T shape. Through the splicing protrusions, the connection surface between the cast-in-place concrete and the precast slab can be larger, making the connection between the precast slab and the cast-in-place layer more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of a composite floor slab with embedded positioning parts.

[0015] Figure 2 It is the side sectional view of a composite floor slab with embedded positioning parts.

[0016] Figure 3 It is the top view of a composite floor slab with embedded positioning parts.

[0017] 1. Precast slab; 2. Embedded bolt; 3. Longitudinal template; 4. Transverse template; 5. Steel pipe group; 6. U-shaped card; 7. Nut; 8. Splicing protrusion; 9. Support column; 10. Long screw; 11. Pouring belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figure 1-2, in the embodiment of the present utility model, a composite floor slab with embedded positioning parts includes a precast slab 1. An embedded bolt 2 is arranged inside the precast slab 1. A threaded hole is opened at the bottom end of the embedded bolt 2. The embedded bolt 2 is connected with a long screw rod 10 through the threaded hole. A casting belt 11 is reserved between two adjacent precast slabs 1 on the left and right. A longitudinal formwork 3 is arranged directly below the casting belt 11. A steel pipe group 5 is arranged at equal intervals at the bottom of the longitudinal formwork 3. The steel pipe group 5 includes two steel pipes arranged side by side. The long screw rod 10 is located between the two steel pipes. A U-shaped clamp 6 is arranged on the long screw rod 10 below the steel pipe group 5. A nut 7 is arranged at the bottom of the U-shaped clamp 6. The nut 7 is threadedly connected with the long screw rod 10. The U-shaped clamp 6 clamps the two steel pipes from the bottom of the steel pipe group 5. A transverse formwork 4 intersecting with the longitudinal formwork 3 at a right angle is welded in the middle of the longitudinal formwork 3. A support column 9 is arranged below the transverse formwork 4. Through the mutual cooperation of the embedded bolt 2, the long screw rod 10, the U-shaped clamp 6, the nut 7 and the steel pipes, the precast slab 1 can be relatively fixed with the formwork and the bottom support column 9, avoiding the displacement of the precast slab 1 when pouring concrete on the precast slab 1, resulting in the failure of the installation of the composite floor slab, thereby improving the success rate of the first installation of the composite floor slab.

[0020] Please refer to Figure 3 , a plurality of splicing protrusions 8 are arranged at equal intervals on the four sides of the precast slab 1. The splicing protrusions 8 are integrally T-shaped. The T-shaped design can make the connection between the precast slab 1 and the cast-in-place concrete more firm. The splicing protrusions 8 and the reserved steel bars protruding from the side of the precast slab 1 are staggered. Through the splicing protrusions 8, the connection surface between the cast-in-place concrete and the precast slab 1 can be larger, making the connection between the precast slab 1 and the cast-in-place layer more firm.

[0021] The working principle of the present utility model is:

[0022] During use, after hoisting the precast slab 1 onto the support frame composed of the longitudinal formwork 3 and the transverse formwork 4, one end of the long screw rod 10 is inserted into the embedded hole from the bottom of the precast slab 1 and threadedly connected with the embedded bolt 2. Then, the steel pipe group 5 is fixed on the long screw rod 10 through the U-shaped clamp 6 and the nut 7, so that the steel pipe group 5 is fixed with the longitudinal formwork 3. In this way, the fixation of the precast slab 1 can be realized, avoiding the displacement of the precast slab 1 when pouring concrete on the precast slab 1, resulting in the failure of the installation.

[0023] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite floor slab with embedded positioning members, comprising a precast slab (1), characterized in that: The precast slab (1) is internally provided with embedded bolts (2). The bottom end of the embedded bolt (2) is provided with a threaded hole, and the embedded bolt (2) is connected with a long screw rod (10) through the threaded hole. A casting belt (11) is reserved between two adjacent precast slabs (1) on the left and right. A longitudinal formwork (3) is arranged directly below the casting belt (11). Steel pipe groups (5) are equidistantly arranged at the bottom of the longitudinal formwork (3). A U-shaped clamp (6) is arranged on the long screw rod (10) below the steel pipe group (5). A nut (7) is arranged at the bottom of the U-shaped clamp (6). The nut (7) is in threaded connection with the long screw rod (10). The U-shaped clamp (6) clamps two steel pipes from the bottom of the steel pipe group (5). A plurality of splicing protrusions (8) are equidistantly arranged on the four sides of the precast slab (1).

2. The composite floor slab with embedded positioning parts according to claim 1, characterized in that: The splicing protrusion (8) is integrally T-shaped.

3. The composite floor slab with embedded positioning parts according to claim 1, characterized in that: The splicing protrusions (8) and the reserved steel bars extending from the side of the precast slab (1) are staggered.

4. A composite floor slab with embedded positioning parts according to claim 1, characterized in that: The steel pipe group (5) includes two steel pipes which are arranged side by side, and the long screw rod (10) is located between the two steel pipes.

5. A composite floor slab with embedded positioning members according to claim 1, characterized in that: A transverse formwork (4) which is arranged in a cross shape with the longitudinal formwork (3) is welded in the middle of the longitudinal formwork (3), and a support column (9) is arranged below the transverse formwork (4).

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