Laminated slab cast-in-place slab strip hanging mold structure

Abstract

The utility model relates to the technical field of building construction, in particular to a composite slab cast-in-place slab strip hanging formwork structure. Comprising a T-shaped reinforcing rod, a double-side screw nut in threaded connection with the lower end of the T-shaped reinforcing rod, a vertical screw rod in threaded connection with the double-side screw nut and located below the T-shaped reinforcing rod, an E-shaped clamp arranged on the vertical screw rod in a sliding and sleeving mode in the axial direction, and an anti-disengaging nut in threaded connection with the vertical screw rod and abutting against the lower end face of the E-shaped clamp. The vertical screw rod is sleeved with the middle block in a sliding mode, the abutting blocks are located on the two sides of the middle block respectively and connected to the middle block in a sliding mode in the horizontal direction, and the middle block is provided with an adjusting assembly for adjusting the sliding positions of the abutting blocks. The E-shaped card has the effect of enlarging the use range of the E-shaped card.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a cast-in-situ slab hanging formwork structure of a composite slab. BACKGROUND

[0002] The composite slab is a kind of assembled monolithic floor slab composed of prefabricated slab and cast-in-situ reinforced concrete layer. During the construction process, it is found that the cast-in-situ slab between the composite slabs is not tightly combined with the bottom of the composite slab due to the insufficient combination of the formwork and the bottom of the composite slab. After the formwork is removed, it is found that there is floating slurry leakage and solidification at the bottom of the slab, which not only affects the visual effect of the concrete, but also is difficult to clean and repair, causing certain difficulty for later decoration.

[0003] In the prior art, the T-shaped reinforcing member is used to solve the problem that the existing composite slab and the formwork are not tightly connected, and the floating slurry leaks out during the removal of the formwork, affecting the visual effect. The T-shaped reinforcing member adopts a T-shaped screw rod, which includes a T-shaped part and a straight rod part, and the T-shaped part and the straight rod part are connected by a double-sided screw nut. The straight rod part is sleeved with a mountain-shaped card, and the two side upper end faces of the mountain-shaped card abut against the lower end faces of the two support keels of the formwork. The size of the two sides of the existing mountain-shaped card is fixed, and it cannot meet the installation of different support keel spacings, so the use range is small, and therefore further improvement is needed. CONTENT OF THE UTILITY MODEL

[0004] In order to increase the use range of the mountain-shaped card, the present application provides a cast-in-situ slab hanging formwork structure of a composite slab.

[0005] The cast-in-situ slab hanging formwork structure of the composite slab provided by the present application adopts the following technical scheme:

[0006] A cast-in-situ slab hanging formwork structure of a composite slab, comprising a T-shaped reinforcing rod, a double-sided screw nut threadedly connected to the lower end of the T-shaped reinforcing rod, a vertical screw rod threadedly connected to the double-sided screw nut and located below the T-shaped reinforcing rod, a mountain-shaped card axially slidingly sleeved on the vertical screw rod, and a anti-loosening nut threadedly connected to the vertical screw rod and abutting against the lower end face of the mountain-shaped card, wherein the mountain-shaped card comprises a middle block slidingly sleeved on the vertical screw rod and a pair of abutting blocks respectively located on both sides of the middle block and horizontally slidingly connected to the middle block, and the middle block is provided with an adjusting assembly for adjusting the sliding position of the abutting blocks.

[0007] By adopting the above technical scheme, the middle block and the abutting blocks of the mountain-shaped card are connected by horizontal sliding, and the adjusting assembly is arranged to adjust the sliding position of the abutting blocks. This design enables the mountain-shaped card to adapt to support keels of different spacings, thereby increasing the use range of the mountain-shaped card and improving the universality and flexibility of the structure.

[0008] Preferably, the side wall of the middle block protrudes a connecting portion, the outer wall of the connecting portion protrudes a guide rod, and the abutting block is provided with a sliding hole for the guide rod to slide through.

[0009] By adopting the technical scheme, the intermediate block and the abutting block are connected in the horizontal direction through the cooperation of the connecting portion and the guide rod, so that the position of the abutting block can be adjusted according to actual requirements.

[0010] Preferably, the adjusting assembly comprises an adjusting screw rod threadedly penetrating the abutting block and rotatably connected to the outer wall of the connecting portion.

[0011] By adopting the technical scheme, the adjusting screw rod can be threadedly connected with the abutting block, and the abutting block can slide in the horizontal direction by rotating the adjusting screw rod, so as to adjust the position of the abutting block relative to the intermediate block.

[0012] Preferably, the adjusting assembly further comprises a knob fixedly connected to the end of the adjusting screw rod and externally arranged on the abutting block.

[0013] By adopting the technical scheme, the knob is arranged to facilitate the operator to manually rotate the adjusting screw rod.

[0014] Preferably, a limiting protrusion abutting against the outer wall of the support joist is fixedly protruded on the upper end face of the side of the abutting block away from the intermediate block.

[0015] By adopting the technical scheme, the limiting protrusion can increase the contact area between the abutting block and the support joist, improve the stability of the mountain-shaped clamp on the support joist of different sizes, effectively prevent the mountain-shaped clamp from sliding or deviating during use, and thus ensure the close connection between the formwork and the bottom of the superimposed slab.

[0016] Preferably, the T-shaped reinforcing rod comprises a horizontal rod and a vertical rod fixedly connected to the middle portion of the horizontal rod, the lower portion of the vertical rod has a threaded segment threadedly connected to a double-sided screw nut, the vertical rod coaxially and fixedly sleeved has a limiting ring located above the threaded segment, the vertical rod axially and slidably sleeved has a conical cap body abutting against the lower end face of the limiting ring, the conical cap body abuts against the upper end face of the formwork, and the double-sided screw nut is embedded in the conical cap body.

[0017] By adopting the technical scheme, the design of the conical cap body enables the double-sided screw nut to be stably embedded therein, and the double-sided screw nut can be easily disassembled from the conical cap body after the construction is completed, so as to realize the reuse of the components.

[0018] Preferably, the horizontal rod is provided with a limiting insertion rod at each end, the limiting insertion rod is vertically arranged, and the limiting hole for the insertion of the limiting insertion rod is formed in the upper end face of the edge of the superimposed slab.

[0019] By adopting the technical scheme, the limiting insertion rod is arranged at the two ends of the horizontal rod and inserted into the limiting hole of the edge of the superimposed slab, which can effectively prevent the T-shaped reinforcing rod from horizontally moving during use, thereby improving the stability of the whole suspended formwork structure.

[0020] Preferably, the limiting plug rod is connected to the cross bar in axial sliding.

[0021] By adopting the technical scheme, the limiting plug rod can be adjusted in position along the cross bar in the axial direction according to actual construction requirements, thereby adapting to limiting holes of different specifications of the laminated slab, and improving the applicability and flexibility of the structure.

[0022] In conclusion, the utility model has the following beneficial effects:

[0023] 1. The middle block and the abutting block of the mountain-shaped card are connected through horizontal sliding, and an adjusting assembly is arranged to adjust the sliding position of the abutting block. This design enables the mountain-shaped card to adapt to support keels with different distances, thereby increasing the use range of the mountain-shaped card and improving the versatility and flexibility of the structure.

[0024] 2. The design of the conical cap body enables the double-sided screw nut to be stably embedded therein, and the double-sided screw nut can be easily disassembled from the conical cap body after construction, thereby realizing the reuse of the components.

[0025] 3. The limiting plug rod is arranged at both ends of the cross bar and inserted into the limiting hole at the edge of the laminated slab, which can effectively prevent the horizontal displacement of the T-shaped reinforcing rod during use, thereby improving the stability of the whole formwork structure. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of a laminated slab cast-in-place slab with formwork structure;

[0027] Figure 2 is a structural schematic view of an adjusting assembly.

[0028] In the drawings, 10 is a laminated slab, 20 is a formwork, 30 is a support keel, 1 is a T-shaped reinforcing rod, 11 is a cross bar, 12 is a vertical rod, 13 is a limiting ring, 14 is a conical cap body, 15 is a limiting plug rod, 2 is a double-sided screw nut, 3 is a vertical screw rod, 4 is a mountain-shaped card, 41 is a middle block, 411 is a connecting part, 412 is a guide rod, 42 is an abutting block, 43 is a limiting protrusion, 5 is an anti-dropping nut, 6 is an adjusting assembly, 61 is an adjusting screw rod, and 62 is a knob. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying drawings. Figures 1-2 The present application will be further described in detail.

[0030] The embodiment of the present application discloses a laminated slab cast-in-place slab with formwork structure, which will be described in detail with reference to the accompanying drawings. Figure 1, including a T-shaped reinforcing rod 1, a double-sided screw nut 2 threadedly connected to the lower end of the T-shaped reinforcing rod 1, a vertical screw rod 3 threadedly connected to the double-sided screw nut 2 and located below the T-shaped reinforcing rod 1, a mountain-shaped clamp 4 axially slidingly sleeved on the vertical screw rod 3, and a anti-loose nut 5 threadedly connected to the vertical screw rod 3 and abutting against the lower end surface of the mountain-shaped clamp 4.

[0031] Referring to Figure 1 , Figure 2 , the T-shaped reinforcing rod 1 includes a cross rod 11 abutting against the upper end surfaces of the edges of the two laminated boards 10 at both ends, and a vertical rod 12 fixedly connected to the middle part of the cross rod 11 and located between the two laminated boards 10. The two ends of the cross rod 11 are each provided with a limiting plug 15 arranged vertically, which in this embodiment is axially slidingly connected to the lower end surface of the cross rod 11, and the upper end surface of the edge of the laminated board 10 is provided with a limiting hole for the insertion of the limiting plug 15.

[0032] The lower part of the vertical rod 12 has a threaded segment threadedly connected to the double-sided screw nut 2. The lower part of the vertical rod 12 is coaxially fixedly sleeved with a limiting ring 13 located above the threaded segment, and the vertical rod 12 is axially slidingly sleeved with a conical cap body 14 abutting against the lower end surface of the limiting ring 13, which abuts against the upper end surface of the formwork 20. The formwork 20 is provided with a through hole for the double-sided screw nut 2 to pass through, and the double-sided screw nut 2 is embedded in the conical cap body 14. The lower end of the conical cap body 14 has a diameter larger than the inner diameter of the through hole, so that the conical cap body 14 is sleeved on the part of the double-sided screw nut 2 protruding from the upper end surface of the formwork 20.

[0033] The lower end surface of the formwork 20 is fixedly connected with a pair of support joists 30 located on both sides of the double-sided screw nut 2. The mountain-shaped clamp 4 includes a middle block 41 axially slidingly sleeved on the vertical screw rod 3, and a pair of abutting blocks 42 located on both sides of the middle block 41 and horizontally slidingly connected to the middle block 41. The upper end surface of the anti-loose nut 5 abuts against the lower end surface of the middle block 41, and the upper end surface of the side of the abutting block 42 away from the middle block 41 is fixedly provided with a limiting protrusion 43 abutting against the outer wall of the support joist 30.

[0034] The side wall of the middle block 41 is fixedly provided with a connecting part 411, the outer wall of the connecting part 411 is fixedly connected with a guide rod 412, and the abutting block 42 is provided with a sliding hole for the guide rod 412 to slidingly pass through. There are two guide rods 412, and the middle block 41 is provided with an adjusting assembly 6 for adjusting the sliding position of the abutting block 42. The adjusting assembly 6 includes an adjusting screw rod 61 threadedly passing through the abutting block 42 and rotatingly connected to the outer wall of the connecting part 411, and a knob 62 fixedly connected to the end part of the adjusting screw rod 61 and externally arranged on the abutting block 42. The adjusting screw rod 61 is axially parallel to the guide rod 412, and the adjusting screw rod 61 is located between the two guide rods 412.

[0035] The implementation principle of the cast-in-place slab with the hanging formwork structure of the laminated slab 10 is as follows: the limiting plug rod 15 on the horizontal rod 11 is inserted into the limiting hole of the laminated slab 10, so that the upper end surface of the horizontal rod 11 abuts against the upper surface of the laminated slab 10; then the conical cap body 14 is sleeved on the vertical rod 12, and the vertical screw rod 3 is connected through the double-sided wire nut 2; after the formwork 20 is installed below the laminated slab 10, the mountain-shaped clamp 4 is slid upward and sleeved, the sliding position of the abutting block 42 is adjusted through the adjusting assembly 6, so that the upper end surface of the abutting block 42 abuts against the lower end surface of the support joist 30, the limiting protrusion 43 abuts against the outer wall of the support joist 30, and then the anti-loose nut 5 is tightened.

[0036] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A composite slab cast-in-place slab structure with suspended formwork, characterized in that: The device includes a T-shaped reinforcing rod (1), a double-sided threaded nut (2) threaded to the lower end of the T-shaped reinforcing rod (1), a vertical screw (3) threaded to the double-sided threaded nut (2) and located below the T-shaped reinforcing rod (1), a mountain-shaped clip (4) slidably sleeved on the vertical screw (3) along the axial direction, and an anti-loosening nut (5) threaded to the vertical screw (3) and abutting against the lower end face of the mountain-shaped clip (4). The mountain-shaped clip (4) includes a middle block (41) slidably sleeved on the vertical screw (3) and a pair of abutting blocks (42) located on both sides of the middle block (41) and slidably connected to the middle block (41) along the horizontal direction. The middle block (41) is provided with an adjustment component (6) for adjusting the sliding position of the abutting blocks (42).

2. The composite slab cast-in-place slab structure with suspended formwork according to claim 1, characterized in that: The middle block (41) has a connecting part (411) protruding and fixed on its side wall, and a guide rod (412) protruding and fixed on the outer wall of the connecting part (411). The abutting block (42) has a sliding hole for the guide rod (412) to slide through.

3. The composite slab cast-in-place slab structure with suspended formwork according to claim 2, characterized in that: The adjustment assembly (6) includes an adjustment screw (61) that is rotatably connected to the outer wall of the connecting part (411) and threaded through the abutment block (42).

4. The composite slab cast-in-place slab structure with suspended formwork according to claim 3, characterized in that: The adjustment assembly (6) also includes a knob (62) fixedly connected to the end of the adjustment screw (61) and externally placed on the abutment block (42).

5. The composite slab cast-in-place slab structure with suspended formwork according to claim 1, characterized in that: The upper end face of the abutting block (42) away from the middle block (41) has a protruding limiting protrusion (43) that abuts against the outer wall of the supporting keel (30).

6. The composite slab cast-in-place slab structure with suspended formwork according to claim 1, characterized in that: The T-shaped reinforcing rod (1) includes a horizontal rod (11) and a vertical rod (12) fixedly connected to the middle of the horizontal rod (11). The lower part of the vertical rod (12) has a threaded section that is threaded to a double-sided threaded nut (2). The vertical rod (12) is coaxially fixedly fitted with a limiting ring (13) located above the threaded section. The vertical rod (12) is axially slidably fitted with a conical cap (14) that abuts against the lower end face of the limiting ring (13). The conical cap (14) abuts against the upper end face of the template (20). The double-sided threaded nut (2) is embedded in the conical cap (14).

7. A composite slab cast-in-place slab structure with suspended formwork according to claim 6, characterized in that: Both ends of the crossbar (11) are provided with limit rods (15), which are arranged vertically. The upper edge of the composite plate (10) is provided with a limit hole for the limit rods (15) to be inserted.

8. A composite slab cast-in-place slab structure with suspended formwork according to claim 7, characterized in that: The limiting rod (15) is axially slidably connected to the crossbar (11).

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