Fabricated cast-in-situ slab with formwork structure

Abstract

The utility model relates to the technical field of building template especially is involved in a kind of assembly type cast-in-place slab belt template structure, it includes the wood template installed between the bottom surface of two superimposed board, wood template below is fixedly connected with wood square, steel pipe is supported in wood square below, vertical pull screw rod is vertically provided on wood template, pull screw rod bottom is equipped with the mountain type card of being buckled on steel pipe and the fixed nut for fixing mountain type card, pull screw rod top is fixed by support mechanism, support mechanism is overall arc, support mechanism includes the flat support portion in the middle and the inclined support portion fixedly connected on both sides of flat support portion, inclined support portion is in truss structure form and is supported on superimposed board top surface, flat support portion top surface is provided with washer, pull screw rod top is vertically provided on flat support portion and washer and is fixed by connecting nut.The template structure is convenient to form and disassemble, and the structure is stable in stress, and it is convenient to carry or transfer, effectively reduces the preparation time and work in early stage, improves construction efficiency, reduces construction cost.

Description

Technical Field

[0001] This utility model relates to the technical field of building formwork, and in particular to a prefabricated cast-in-place slab with formwork structure. Background Technology

[0002] With the continuous development of the construction industry, prefabricated buildings are receiving increasing attention and application. Prefabricated building construction projects often require the disassembly of composite slabs according to the production line dimensions of component manufacturers and the lifting capacity of on-site lifting equipment. After the composite slabs are hoisted, there will be slab strip joints (hereinafter referred to as slab strips).

[0003] If the traditional formwork support system is used to pour the concrete strip of the composite slab, the bottom of the composite slab is fully covered with wooden formwork and support rods, which takes a long time, wastes a lot of wooden formwork, and affects the construction progress of the subsequent cast-in-place beam and slab sections, and cannot meet the demand for fast construction speed of prefabricated buildings. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a prefabricated cast-in-place slab with formwork structure.

[0005] The present invention provides a prefabricated cast-in-place slab with formwork structure, which adopts the following technical solution: A prefabricated cast-in-place slab with formwork structure includes a wooden formwork installed between the bottom surfaces of two composite slabs. Wooden beams are fixed below the wooden formwork, and steel pipes support the beams below the beams. Tie rods are vertically threaded through the wooden formwork. A U-shaped clip fastened to the steel pipe and a fixing nut for securing the U-shaped clip are installed at the bottom of the tie rods. The top of the tie rods is fixed by a support mechanism. The support mechanism is arched in shape and includes a horizontal brace in the middle and diagonal braces fixed to both sides of the horizontal brace. The diagonal braces are truss structures and support the top surface of the composite slabs. Washers are provided on the top surface of the horizontal brace. The top of the tie rods passes through the horizontal brace and the washers and is fixed by connecting nuts.

[0006] By adopting the above technical solution, a corresponding number of support mechanisms are set along the length of the board strip as needed. The flat support and two diagonal support parts form an arch frame system, which, together with the connecting nuts, effectively supports the tie rods, thereby ensuring the stability of the wooden formwork. The formwork structure is easy to assemble and disassemble, has stable structural stress, and is easy to carry or transport, effectively reducing the preparation time and work in the early stage, improving construction efficiency, and reducing construction costs.

[0007] Preferably, the support mechanism includes two support plates that are parallel vertically and horizontally arranged. The support plates are rectangular, and vertical struts are vertically fixed between the four corners of the upper and lower support plates. Tie rods pass through the two support plates, and washers are disposed on the top surface of the upper support plate.

[0008] By adopting the above technical solution, the two support plates, which are symmetrically arranged at the top and bottom, can ensure the vertical state of the tie rod.

[0009] Preferably, the diagonal bracing includes two sets of diagonal bracing rods that are obliquely fixed to the left and right sides of the support plate. Each set includes two diagonal bracing rods. A vertical bracing rod is fixed between the ends of the two diagonal bracing rods that are corresponding to each other. A rib is fixed between the middle of the two diagonal bracing rods that are corresponding to each other. A bottom rod is fixed between the ends of the two diagonal bracing rods located below. A horizontal connecting rod is fixed between the ends of the two diagonal bracing rods located above.

[0010] By adopting the above technical solutions, the diagonal bracing of the truss system is stable under stress, which can effectively support the horizontal bracing and ensure overall stability.

[0011] Preferably, a connecting rod spanning the plate strip area is fixed between the two bottom rods.

[0012] By adopting the above technical solution, the connection rod configuration further enhances the overall stability of the support mechanism.

[0013] Preferably, the base rod includes sleeves on both sides, a diagonal brace and a vertical brace fixedly connected to the sleeves, an insert rod rotatably passing between the two sleeves, a positioning plate fixedly connected to the insert rod, and a positioning hole provided on the positioning plate.

[0014] By adopting the above technical solution, the flip positioning plate is attached to the top of the composite plate, and then the positioning plate can be fixed by cement nails or other structures, thereby improving the overall stability of the support mechanism.

[0015] Preferably, a retaining bead is fixedly connected to the second vertical support rod, and a long strip-shaped retaining ring is horizontally fixed to the surface of the positioning plate. The retaining ring can be detachably fitted onto the retaining bead.

[0016] By adopting the above technical solution, the retaining ring is fitted onto the retaining bead, thereby fixing the positioning plate when it is not in use.

[0017] Preferably, a base with a trapezoidal cross-section is installed on the sleeve, and the base is supported on the top surface of the composite plate.

[0018] By adopting the above technical solution, the base helps to distribute the force and improve the stability of the support mechanism after installation.

[0019] Preferably, a handle is fixed to the cross link.

[0020] By adopting the above technical solution, a handle is provided to facilitate carrying the support mechanism. Attached Figure Description

[0021] Figure 1 This is a front view of the prefabricated cast-in-place slab with formwork structure according to an embodiment of this utility model.

[0022] Figure 2 yes Figure 1 Side view of the central support structure.

[0023] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Tie rod; 2. Wooden template; 3. Timber; 4. Steel pipe; 5. U-shaped clamp; 6. Fixing nut; 7. Support mechanism; 70. Horizontal brace; 700. Support plate; 701. Vertical support rod one; 71. Washer; 72. Connecting nut; 73. Diagonal brace; 730. Diagonal support rod; 731. Base rod; 7310. Sleeve; 7311. Insert rod; 732. Vertical support rod two; 733. Rib; 734. Horizontal connecting rod; 74. Connecting rod; 75. Base; 76. Positioning plate; 760. Positioning hole; 77. Clamping bead; 78. Clamping ring; 79. Handle. Detailed Implementation

[0025] The following combination Figures 1-3 This utility model will be further described in detail below. An embodiment of this utility model discloses a prefabricated cast-in-place slab with formwork structure.

[0026] Reference Figure 1 The composite slabs form a strip, and the prefabricated cast-in-place strip formwork structure includes multiple vertical tie rods 1 passing through the strip area. Wooden templates 2 are inserted through the bottom of the tie rods 1. The wooden templates 2 are fitted between the bottom surfaces of the two composite slabs, and a sealing strip is installed at the joint. Wooden squares 3 are fixed to the bottom surface of the wooden templates 2. Steel pipes 4 are supported below the wooden squares 3 and are perpendicular to the wooden squares 3. A U-shaped clip 5 is inserted through the bottom end of the tie rod 1. The U-shaped clip 5 is fastened to the two steel pipes 4. A fixing nut 6 for fixing the U-shaped clip 5 is also threaded on the bottom end of the tie rod 1.

[0027] Reference Figure 1 and Figure 2 The top of the tie rod 1 is equipped with a support mechanism 7 for hoisting the tie rod 1. Multiple support mechanisms 7 are provided along the extension direction of the strip. The support mechanism 7 includes a flat support part 70. The flat support part 70 includes two support plates 700 that are symmetrically arranged vertically and horizontally. The support plate 700 is a rectangular plate with a hole in the center. Vertical support rods 701 are vertically fixed between the four corners of the upper and lower support plates 700. The top of the tie rod 1 passes through the two support plates 700. A washer 71 is also fitted on the top of the tie rod 1. The washer 71 is supported on the top surface of the upper support plate 700. A connecting nut 72 is also threaded to the top of the tie rod 1. The connecting nut 72 abuts against the washer 71.

[0028] Reference Figure 1 and Figure 2The left and right sides of the flat support 70 are respectively fixed with diagonal support 73. The diagonal support 73 includes two diagonal support rods 730 that are respectively fixed at an incline to the edges of the two support plates 700. A bottom rod 731 is fixed between the two lower diagonal support rods 730. The bottom rod 731 includes sleeves 7310 on both sides and a plug rod 7311 that passes between the two sleeves 7310. The diagonal support rods 730 are fixed to the sleeves 7310. A second vertical support rod 732 is fixed between the ends of the two corresponding upper and lower diagonal support rods 730. The second vertical support rod 732 is fixed to the sleeves 7310. A plurality of ribs 733 are fixed between the middle of the two corresponding upper and lower diagonal support rods 730. A horizontal connecting rod 734 is fixed between the ends of the two upper diagonal support rods 730.

[0029] Reference Figures 1-3 A connecting rod 74 is fixed between two sleeves 7310 arranged opposite each other on the left and right. The connecting rod 74 is positioned across the top of the plate strip. Each sleeve 7310 is equipped with a base 75 with a trapezoidal cross-section, which supports the top surface of the composite plate. A positioning plate 76 is fixed to the insertion rod 7311. The positioning plate 76 is in a vertical position when not in use. The positioning plate 76 is a rectangular plate with a positioning hole 760 in the center. When the positioning plate 76 is rotated downwards by 90°, the positioning plate 76 fits against the top surface of the composite plate. The positioning plate 76 can be fixed with cement nails or other structures to further improve the overall stability of the support mechanism 7 on the composite plate.

[0030] Reference Figure 2 and Figure 3 A retaining bead 77 is fixedly connected to the second vertical support rod 732, and a long strip-shaped retaining ring 78 is horizontally fixed to the surface of the positioning plate 76. The retaining ring 78 can be detachably fitted onto the retaining bead 77 to fix the positioning plate 76 when it is not in use. To facilitate carrying the support mechanism 7, handles 79 are also fixedly connected to the two horizontal connecting rods 734 respectively.

[0031] The implementation principle of the prefabricated cast-in-place slab strip formwork structure of this utility model embodiment is as follows: During the construction of slab strip concrete pouring, the wooden formwork 2, timber 3, and steel pipe 4 are installed under the two composite slabs. The bottom of the tie rod 1 is fixed by the mountain-shaped clip 5 and the fixing nut 6. The top of the tie rod 1 is fixed by the flat brace 70, washer 71, connecting nut 72 and diagonal brace 73 in the support mechanism 7. The corresponding number of support mechanisms 7 are set along the length of the slab strip as needed. The flat brace 70 and the two diagonal braces 73 form an arch frame system and work with the connecting nut 72 to effectively support the tie rod 1, thereby ensuring the stability of the wooden formwork 2. This formwork structure is easy to assemble and disassemble, has stable structural stress, is easy to carry or transport, effectively reduces the preparation time and work in the early stage, improves construction efficiency, and reduces construction costs.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated cast-in-place slab structure with formwork, characterized in that: The system includes a wooden template (2) installed between the bottom surfaces of two composite slabs, a wooden beam (3) fixed below the wooden template (2), a steel pipe (4) supported below the wooden beam (3), a tie rod (1) vertically inserted on the wooden template (2), a mountain-shaped clip (5) fastened to the steel pipe (4) and a fixing nut (6) for fixing the mountain-shaped clip (5) are installed at the bottom of the tie rod (1), and the top of the tie rod (1) is fixed by a support mechanism (7). The support mechanism (7) is arched in shape. The support mechanism (7) includes a flat support part (70) located in the middle and diagonal support parts (73) fixed on both sides of the flat support part (70). The diagonal support part (73) is in the form of a truss structure and is supported on the top surface of the composite slab. A washer (71) is provided on the top surface of the flat support part (70). The top of the tie rod (1) is inserted through the flat support part (70) and the washer (71) and fixed by a connecting nut (72).

2. The prefabricated cast-in-place slab with formwork structure according to claim 1, characterized in that: The support mechanism (7) includes two support plates (700) that are parallel to each other and arranged horizontally. The support plates (700) are rectangular. Vertical support rods (701) are vertically fixed between the four corners of the upper and lower support plates (700). Pull screws (1) pass through the two support plates (700). Washers (71) are set on the top surface of the upper support plate (700).

3. The prefabricated cast-in-place slab with formwork structure according to claim 2, characterized in that: The diagonal bracing (73) includes two sets of diagonal bracing rods (730) that are obliquely fixed to the left and right sides of the support plate (700). Each set includes two diagonal bracing rods (730). A vertical bracing rod (732) is fixed between the ends of the two diagonal bracing rods (730) that are corresponding to the top and bottom. A rib (733) is fixed between the middle of the two diagonal bracing rods (730) that are corresponding to the top and bottom. A bottom rod (731) is fixed between the ends of the two diagonal bracing rods (730) located below. A horizontal connecting rod (734) is fixed between the ends of the two diagonal bracing rods (730) located above.

4. The prefabricated cast-in-place slab with formwork structure according to claim 3, characterized in that: A connecting rod (74) spanning the plate strip area is fixed between the two bottom rods (731).

5. The prefabricated cast-in-place slab with formwork structure according to claim 3, characterized in that: The base rod (731) includes sleeves (7310) on both sides, diagonal bracing rod (730) and vertical bracing rod two (732) fixed to the sleeves (7310), and an insert rod (7311) is rotatably inserted between the two sleeves (7310). A positioning plate (76) is fixed to the insert rod (7311), and a positioning hole (760) is opened on the positioning plate (76).

6. The prefabricated cast-in-place slab with formwork structure according to claim 5, characterized in that: A retaining bead (77) is fixedly connected to the second vertical support rod (732), and a long strip-shaped retaining ring (78) is horizontally fixed to the surface of the positioning plate (76). The retaining ring (78) can be detachably fitted onto the retaining bead (77).

7. The prefabricated cast-in-place slab with formwork structure according to claim 6, characterized in that: A trapezoidal base (75) is installed on the sleeve (7310), and the base (75) is supported on the top surface of the composite plate.

8. The prefabricated cast-in-place slab with formwork structure according to claim 3, characterized in that: A handle (79) is fixed to the cross link (734).

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