Assembly type laminated slab post-cast strip supporting device

Abstract

The utility model relates to the technical field of post-cast strip supporting, in particular to an assembly type laminated slab post-cast strip supporting device, which is arranged between two hoisted laminated slabs (1), and is characterized by comprising internal and external thread nuts (8), a template (2) and a cross beam (3), the internal and external thread nuts (8) are pre-embedded at the bottoms of the sides, close to each other, of the two laminated slabs (1), and the template (2) is embedded in the cross beam (3). The formwork (2) is arranged between the two laminated slabs (1), the two ends of the top face of the formwork (2) abut against the bottom faces of the two laminated slabs (1), the internal and external thread nut (8) is located on the outer side of the upper portion of the formwork (2), the cross beam (3) transversely abuts against the lower portion of the formwork (2), the two ends of the cross beam (3) protrude out of the two sides of the formwork (2), and a fastening mechanism is arranged between the cross beam (3) and the internal and external thread nut (8). The problems of large material consumption, high cost and low installation efficiency are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of post-cast strip supports, and more specifically, to a prefabricated composite slab post-cast strip support device. Background Art

[0002] Chinese Utility Model Publication Specification CN202320258207.3 discloses a prefabricated composite slab post-cast strip support device, which includes a precast composite floor slab and a plywood board. A square steel pipe I is fixedly installed on the plywood board through fixing plywood bolts. A square steel pipe II is fixedly installed on the square steel pipe I. A fixing mechanism is installed between the square steel pipe II and the precast composite floor slab. The advantages are as follows: By pre-burying nut holes reserved in the composite slab at the bottom of the precast composite floor slab, the formwork surface support can effectively adhere to the composite slab surface, and there will be no leakage of mortar. The support device is fixed by bolts, and the support device will not shift or deform greatly, thereby enhancing the stability of the support device. However, this achievement has reserved nut holes in the composite slab, and the bottom structure still adopts a multi-layer support system of primary and secondary beams plus an adjustment device, which has the disadvantages of large material consumption, high cost, and low installation efficiency. Summary of the Utility Model

[0003] In order to overcome the disadvantages of large material consumption, high cost, and low installation efficiency of the prefabricated composite slab post-cast strip support device, the utility model aims to provide a prefabricated composite slab post-cast strip support device with less material consumption, lower cost, and high installation efficiency.

[0004] A prefabricated composite slab post-cast strip support device includes an internal and external thread nut, a formwork, and a cross beam. The internal and external thread nut is pre-buried at the bottom of one side where two composite slabs are close to each other. The formwork is arranged between the two composite slabs. The two ends of the top surface of the formwork are abutted against the bottom surfaces of the two composite slabs. The internal and external thread nut is located above the outer side of the formwork. The cross beam is horizontally abutted against the lower part of the formwork, and both ends of the cross beam protrude from both sides of the formwork. A fastening mechanism is arranged between the cross beam and the internal and external thread nut.

[0005] Further, fixing holes are opened at both ends of the cross beam. The fastening mechanism includes a screw rod and an adjusting nut. The screw rod penetrates through the fixing hole and its upper end is threadedly connected to the internal and external thread nut. The adjusting nut is sleeved on the screw rod and abutted against the bottom surface of the cross beam.

[0006] Further, a fastening nut is arranged at the lower end of the screw rod, and the screw rod and the fastening nut are fixedly connected.

[0007] Further, the fixing hole is a long hole.

[0008] Further, the formwork is a wooden formwork.

[0009] Further, the cross beam is a square steel.

[0010] Furthermore, a washer is provided between the adjusting nut and the bottom surface of the crossbeam.

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

[0012] 1. Compared with the prior art, the prefabricated composite slab post-casting strip supporting device of the utility model includes a template, a beam, a screw, an adjusting nut and a fastening nut that cooperate with each other. By pre-embedding internal and external thread nuts in the composite slab and setting long holes on the beam, the screw passes through the long holes of the beam and is fastened with the pre-embedded internal and external thread nuts. According to the thickness of the template, the adjusting nut is adjusted to the appropriate position in advance and then the fastening nut is tightened with an electric wrench commonly used by carpenters. The material consumption is small, and the template does not need to be opened, so non-destructive use is achieved, the turnover rate is improved, the cost is reduced, and the installation efficiency is improved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the post-cast strip supporting device of the assembled composite slab in the utility model.

[0015] Figure 2 It is a cross-sectional structural schematic diagram of a post-cast strip supporting device of an assembled composite slab in the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the fastening mechanism structure of the post-cast strip supporting device of the assembled composite slab.

[0017] Figure 4 It is a schematic diagram of the main beam structure of the post-cast strip supporting device of the assembled composite slab in the utility model.

[0018] Figure 5 The utility model is a schematic diagram of the internal and external thread nut structure of the post-casting strip supporting device of the assembled composite slab.

[0019] In the figure: 1. Composite plate; 2. Formwork; 3. Crossbeam; 4. Screw; 5. Adjusting nut; 6. Fastening nut; 7. Long hole; 8. Internal and external thread nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 As shown, the prefabricated composite slab post-casting strip support device in this embodiment is arranged between two composite slabs 1 after hoisting, and includes a template 2, a beam 3, a screw 4, an adjustment nut 5 and a fastening nut 6. Specifically, the template 2 is a wooden template, and the beam 3 is a square steel. Figure 2 and 4 As shown, a nut 8 with internal and external teeth is embedded in the bottom of the composite plate 1, and the template 2 is arranged between the two composite plates 1, and the two ends of the top surface of the template 2 abut against the bottom surfaces of the two composite plates 1, as shown in FIG. Figure 3 As shown, the crossbeam 3 is laterally abutted against the bottom of the template 2, and the two ends of the crossbeam 3 protrude from the two sides of the template 2. The two ends of the crossbeam 3 are provided with fixing holes. Specifically, the fixing holes are long holes 7. The two long holes 7 correspond to the positions of the internal and external thread nuts 8 embedded in the bottom of the two laminated plates 1. Figure 2 As shown, the screw rod 4 passes through the long hole 7 and the upper end is threadedly connected with the internal and external thread nuts 8, the adjusting nut 5 is sleeved on the screw rod 4 and abuts against the bottom surface of the beam 3, a washer (not shown in the figure) is arranged between the adjusting nut 5 and the bottom surface of the beam 3, and the fastening nut 6 is welded and arranged at the bottom of the screw rod 4.

[0022] In this embodiment, the internal and external thread nuts 8 are embedded in the composite board 1 during production. During on-site installation, the top of the template 2 is fitted with the bottom of the suspended composite board 1. The bottom of the template 2 is supported by a beam 3 with long holes 7 at both ends. The distance between the long holes 7 is greater than the width of the template 2. The screw 4 passes through the long holes 7 and is threadedly connected to the embedded internal and external thread nuts 8. According to the thickness of the template 2, the adjustment nut 5 is adjusted to the appropriate position in advance and then the fastening nut 6 is tightened with an electric wrench commonly used by carpenters to improve the installation efficiency. The embedded internal and external thread nuts 8 are close to the edge of the template, and the tightening effect is good, which can minimize the possibility of leakage between the board joints, reduce the number of processes, save materials, and increase the installation quality.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, 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 post-cast strip support device for assembled composite slabs, arranged between two composite slabs (1) after hoisting, characterized in that: The invention comprises an internal and external thread nut (8), a template (2) and a cross beam (3), wherein the internal and external thread nut (8) is pre-buried in the bottom of one side of two overlapping plates (1) close to each other, the template (2) is arranged between the two overlapping plates (1), the two ends of the top surface of the template (2) are in contact with the bottom surfaces of the two overlapping plates (1), the internal and external thread nut (8) is located on the upper outer side of the template (2), the cross beam (3) is in contact with the lower side of the template (2) in the transverse direction, and the two ends of the cross beam (3) protrude from the two sides of the template (2), and a fastening mechanism is arranged between the cross beam (3) and the internal and external thread nut (8).

2. The post-cast strip support device for assembled composite slab according to claim 1, characterized in that: The cross beam (3) is provided with fixing holes at both ends, and the fastening mechanism comprises a screw rod (4) and an adjusting nut (5). The screw rod (4) passes through the fixing hole and the upper end is threadedly connected to the internal and external thread nuts (8), and the adjusting nut (5) is sleeved on the screw rod (4) and abuts against the bottom surface of the cross beam (3).

3. The post-cast strip support device for assembled composite slab according to claim 2, characterized in that: A fastening nut (6) is provided at the lower end of the screw rod (4), and the screw rod (4) and the fastening nut (6) are fixedly connected.

4. A post-cast strip support device for assembled composite slabs according to claim 2 or 3, characterized in that: The fixing hole is an elongated hole (7).

5. The post-cast strip support device for assembled composite slab according to claim 4, characterized in that: The template (2) is a wooden template.

6. The post-cast strip support device for assembled composite slab according to claim 1, characterized in that: The crossbeam (3) is square steel.

7. The post-cast strip support device for assembled composite slab according to claim 2 or 3, characterized in that: A washer is provided between the adjusting nut (5) and the bottom surface of the crossbeam (3).

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