Tooling adjustable support frame for precast composite floor

Abstract

This invention discloses a tool-type adjustable support frame for precast composite floor slabs, belonging to the field of building construction technology. It includes a pair of stable base plates, each with a limiting sleeve fixedly connected to its top; an adjusting support rod slidably fitted within the limiting sleeve; a height adjusting component mounted on the stable base plates for adjusting the working height of the adjusting support rod; a sliding sleeve slidably fitted onto the adjusting support rod, with brackets fixedly connected to both sides of the sliding sleeve, and a first mounting seat fixedly connected to the top of the bracket, within which an early-stripping support plate is detachably mounted; and a positioning component connected to the adjusting support rod. Initially, the early-stripping support plate and the fixed support plate together support the precast composite floor slab. Once the upper concrete of the precast composite floor slab has cured to a preset early strength, the early-stripping support plate can be disassembled and reused at other workstations, at which point the fixed support plate alone can meet the continuous support requirements of the floor slab.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a tool-type adjustable support frame for prefabricated composite floor slabs. Background Technology

[0002] Precast composite floor slabs are widely used load-bearing components in prefabricated concrete buildings. They are generally formed by combining a precast base slab in the factory with a cast-in-place concrete layer on site to form an integral load-bearing structure. During the entire process of installation and placement on the construction site and the pouring and curing of the upper cast-in-place concrete, the precast composite floor slab itself has not yet formed complete structural strength. It must rely on a temporary support system at the bottom to bear the construction load and avoid safety and quality problems such as deflection, cracks, and overturning. Therefore, the structural form, stability, and dismantling efficiency of the temporary support directly affect the construction progress, construction quality, and economic benefits of prefabricated buildings.

[0003] Existing precast composite floor slab support devices mostly adopt an integral structure, with each support component fixedly connected and not disassembled. They can only be completely removed after the post-poured concrete has fully hardened and the composite floor slab has reached its design strength. This makes it impossible to recycle some components in advance when the concrete reaches its early strength, resulting in low utilization rate of support components, long construction period, and high material and labor costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a tool-type adjustable support frame for precast composite floor slabs. In the initial stage, the early-stripping support plate and the fixed support plate together provide support for the precast composite floor slab. After the concrete on the upper part of the precast composite floor slab has cured to the preset early strength, the early-stripping support plate can be disassembled and transferred to other work stations for use.

[0005] This invention achieves the above objective through the following technical solution: a tool-type adjustable support frame for precast composite floor slabs, comprising:

[0006] A pair of stabilizing base plates, each with a limit sleeve fixedly connected to its top;

[0007] Adjust the support rod and slide it into the limiting sleeve;

[0008] A height adjustment component, mounted on a stable base plate, is used to adjust the working height of the adjustment support rod;

[0009] A sliding sleeve is attached to an adjusting support rod. Both sides of the sliding sleeve are fixedly connected to brackets. The top of the brackets is fixedly connected to a first mounting seat. An early-release support plate is detachably installed inside the first mounting seat.

[0010] The positioning component, connected to the adjusting support rod, is used for axial positioning of the sliding sleeve and the early release support plate;

[0011] The second mounting base is fixedly connected to the top of the adjusting support rod, and a fixed support plate is provided inside the second mounting base.

[0012] Preferably, the early-release support plate is detachably connected to the first mounting base via a first fixing screw, and the fixed support plate is detachably connected to the second mounting base via a second fixing screw.

[0013] Preferably, the height adjustment assembly includes a pair of support screws, which are symmetrically fixed to the top of the stable base plate, and each support screw is threaded with a support threaded tube.

[0014] Preferably, an adjusting baffle is fixedly installed on the outer wall of the adjusting support rod, and the top end of the supporting threaded tube abuts against the bottom of the adjusting baffle to support the adjusting support rod.

[0015] Preferably, the positioning assembly includes a positioning plate fixedly connected between a pair of sliding sleeves, and an installation cross plate fixedly connected between a pair of adjusting support rods.

[0016] Preferably, a pair of positioning screws are symmetrically threaded onto the mounting plate, with the bottom end of the positioning screw abutting against the top of the positioning plate to position the sliding sleeve.

[0017] Preferably, an operating handle is fixedly installed at the bottom end of each pair of positioning screws.

[0018] Preferably, the support has a triangular structure.

[0019] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0020] By setting up height adjustment components, early-stripping support plates, and fixed support plates, the working heights of the fixed and early-stripping support plates can be adjusted through the height adjustment components during the support operation of the precast composite floor slab, so that they fit against the bottom surface of the precast composite floor slab to achieve reliable support. After the support is in place, the early-stripping support plates and fixed support plates together form multi-point support for the precast composite floor slab. When the concrete on the upper part of the precast composite floor slab has cured to the preset early strength, the positioning component releases the positioning restriction on the sliding sleeve, allowing the sliding sleeve to slide downward along the adjustment support rod, driving the early-stripping support plate to move downward and release the fit support state with the bottom surface of the floor slab, thereby realizing the disassembly and reuse of the early-stripping support plate. At this time, the fixed support plate alone can meet the continuous support requirements of the precast composite floor slab, effectively improving the turnover rate of support components, shortening the construction cycle, and reducing construction costs while ensuring support stability and construction safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure after the early dismantling support plate is moved down in this invention.

[0023] Figure 3 This is a schematic diagram of the installation of the positioning component in this invention.

[0024] Figure 4 This is a schematic diagram of the positioning component in this invention.

[0025] Figure 5 This is a schematic diagram showing the connection between the height adjustment component and the adjustment support rod in this invention.

[0026] Figure 6 This is a schematic diagram of the connection between the supporting threaded tube and the supporting screw in this invention.

[0027] In the diagram: 1. Stabilizing base plate; 2. Limiting sleeve; 3. Adjusting support rod; 4. Height adjustment assembly; 401. Support screw; 402. Support threaded tube; 403. Adjusting baffle; 5. Sliding sleeve; 6. Bracket; 7. First mounting seat; 8. Early release support plate; 9. Positioning assembly; 901. Positioning plate; 902. Mounting cross plate; 903. Positioning screw; 904. Operating handle; 10. Second mounting seat; 11. Fixed support plate; 12. First fixing screw; 13. Second fixing screw. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-6 As shown, a tool-type adjustable support frame for precast composite floor slabs includes a pair of stable base plates 1, each with a limiting sleeve 2 fixedly connected to its top; an adjusting support rod 3 slidably fitted inside the limiting sleeve 2; a height adjusting assembly 4 mounted on the stable base plate 1 for adjusting the working height of the adjusting support rod 3; a sliding sleeve 5 connected to the adjusting support rod 3, with brackets 6 fixedly connected to both sides of the sliding sleeve 5, and a first mounting seat 7 fixedly connected to the top of the brackets 6, with an early-release support plate 8 detachably mounted inside the first mounting seat 7; a positioning assembly 9 connected to the adjusting support rod 3 for axial positioning of the sliding sleeve 5 and the early-release support plate 8; and a second mounting seat 10 fixedly connected to the top of the adjusting support rod 3, with a fixed support plate 11 mounted inside the second mounting seat 10.

[0030] In use, the stable base plate 1 is placed on the construction ground, and the adjustable support rod 3 is slidably fitted into the limiting sleeve 2 above the stable base plate 1. The working height of the adjustable support rod 3 is adjusted by the height adjustment component 4 on the stable base plate 1, so that the fixed support plate 11 in the second mounting seat 10 at the top of the adjustable support rod 3 and the early-removal support plate 8 in the first mounting seat 7 above the bracket 6 are in contact with the bottom surface of the precast composite floor slab, completing the initial support. In the supported state, the sliding sleeve 5 is connected to the adjustable support rod 3. The axial positioning of the sliding sleeve 5 and the early-removal support plate 8 is performed by the positioning component 9 to ensure that the early-removal support plate 8 and the fixed support plate 11 together provide stable support for the precast composite floor slab. After the concrete above the precast composite floor slab has cured to the preset early strength, the positioning component 9 is operated to release the sliding sleeve. The positioning restriction of 5 causes the sliding sleeve 5 to slide downward along the adjusting support rod 3. The sliding sleeve 5 drives the brackets 6 on both sides, the first mounting seat 7, and the early removal support plate 8 to move downward synchronously, releasing the early removal support plate 8 from the contact support state with the bottom surface of the precast composite floor slab. Then, the early removal support plate 8 is removed from the first mounting seat 7 and transferred to other construction positions for use. At this time, the precast composite floor slab can be continuously provided with reliable support by adjusting the support rod 3, the second mounting seat 10, and the fixed support plate 11. The support height can be flexibly adjusted by the height adjustment component 4 to adapt to different construction conditions. By setting the early removal support plate 8 and the fixed support plate 11 separately, the support strength and construction safety are guaranteed, while the support components can be used in advance, improving construction efficiency and reducing construction costs.

[0031] The early-release support plate 8 is detachably connected to the first mounting base 7 via the first fixing screw 12, and the fixed support plate 11 is detachably connected to the second mounting base 10 via the second fixing screw 13.

[0032] During the support operation, the first fixing screw 12 firmly fixes the early-release support plate 8 in the first mounting seat 7, and the second fixing screw 13 firmly fixes the fixed support plate 11 in the second mounting seat 10, ensuring that the two together stably support the precast composite floor slab. When the early-release support plate 8 needs to be disassembled for reuse, the early-release support plate 8 can be quickly removed by unscrewing the first fixing screw 12. The fixed support plate 11 is then connected to the second mounting seat 10 by the second fixing screw 13, continuously providing reliable support for the precast composite floor slab.

[0033] The height adjustment assembly 4 includes a pair of support screws 401, which are symmetrically fixed to the top of the stable base plate 1. Each support screw 401 is threaded with a support threaded tube 402. An adjustment baffle 403 is fixedly installed on the outer wall of the adjustment support rod 3. The top end of the support threaded tube 402 abuts against the bottom of the adjustment baffle 403 to support the adjustment support rod 3.

[0034] When adjusting the working height of the adjustable support rod 3 to adapt to the precast composite floor slab, the support threaded tube 402 is screwed on to move up and down along the support screw 401. The support threaded tube 402 drives the adjusting baffle 403 at the top to move up and down synchronously, thereby causing the adjustable support rod 3 to slide along the limiting sleeve 2, thus adjusting the height of the adjustable support rod 3. Finally, the fixed support plate 11 and the early-stripping support plate 8 are tightly attached to the bottom surface of the precast composite floor slab, ensuring the reliability of the support. The height adjustment component 4 has a simple structure and is easy to adjust. It can flexibly adapt to the support requirements of precast composite floor slabs with different thicknesses and construction heights, ensuring the safety and accuracy of the support operation, improving the convenience of construction, shortening the construction preparation time, and the component structure is stable, durable, and reusable, further reducing construction costs.

[0035] The positioning assembly 9 includes a positioning plate 901 fixedly connected between a pair of sliding sleeves 5, and a mounting plate 902 fixedly connected between a pair of adjusting support rods 3. A pair of positioning screws 903 are symmetrically threaded onto the mounting plate 902. The bottom end of the positioning screw 903 abuts against the top of the positioning plate 901 to achieve positioning of the sliding sleeves 5. An operating handle 904 is fixedly installed at the bottom end of each pair of positioning screws 903.

[0036] In the initial support state, rotating the operating handle 904 drives the positioning screw 903 to rotate upward, so that the bottom end of the positioning screw 903 presses against the positioning plate 901, fixing the positioning plate 901 and the sliding sleeve 5 at the set height. This ensures that the early-stripping support plate 8 and the fixed support plate 11 together provide stable support for the precast composite floor slab. When it is necessary to disassemble the early-stripping support plate 8, rotating the operating handle 904 in the opposite direction drives the positioning screw 903 to rotate downward, so that the bottom end of the positioning screw 903 moves away from the positioning plate 901 and releases the abutment limit. The sliding sleeve 5 can then slide downward along the adjusting support rod 3, causing the early-stripping support plate 8 to detach from the bottom surface of the floor slab. After that, the early-stripping support plate 8 can be removed. This positioning component 9 is reliable in positioning and easy to operate. Locking and unlocking can be easily achieved through the operating handle 904, which can not only ensure the support stability during construction, but also realize the quick disassembly and assembly of the early-stripping components, improving the overall construction efficiency.

[0037] The bracket 6 has a triangular structure. The triangular structure of the bracket 6 can provide stable support and force transmission for the first mounting base 7 and the early stripping support plate 8. When bearing the construction load of the precast composite floor slab, it is not easy to deform, shake or tilt, effectively improving the stability and anti-overturning ability of the overall support system.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tooling adjustable support frame for a precast composite floor slab, characterised in that, include: A pair of stabilizing base plates (1), with a limiting sleeve (2) fixedly connected to the top of each stabilizing base plate (1); Adjust the support rod (3) and slide it into the limiting sleeve (2); The height adjustment component (4) is set on the stable base plate (1) and is used to adjust the working height of the adjustment support rod (3); Sliding sleeve (5) is connected to adjusting support rod (3). Both sides of the sliding sleeve (5) are fixedly connected to brackets (6). The top of the brackets (6) is fixedly connected to a first mounting seat (7). The first mounting seat (7) is detachably provided with an early removal support plate (8). The positioning component (9) is connected to the adjusting support rod (3) and is used to axially position the sliding sleeve (5) and the early release support plate (8); The second mounting base (10) is fixedly connected to the top of the adjusting support rod (3), and a fixed support plate (11) is provided inside the second mounting base (10).

2. A tool-style adjustable support shelf for use with precast composite floor panels according to claim 1, characterized in that: The early-release support plate (8) and the first mounting base (7) are detachably connected by the first fixing screw (12), and the fixed support plate (11) and the second mounting base (10) are detachably connected by the second fixing screw (13).

3. A tool style adjustable support shelf for use with precast composite floor panels as described in claim 1 wherein: The height adjustment assembly (4) includes a pair of support screws (401), which are symmetrically fixed to the top of the stable base plate (1), and each support screw (401) is threaded with a support threaded tube (402).

4. A tool style adjustable support shelf for use with precast composite floor panels as described in claim 3 wherein: An adjusting baffle (403) is fixedly installed on the outer side wall of the adjusting support rod (3), and the top end of the supporting threaded tube (402) abuts against the bottom of the adjusting baffle (403) to support the adjusting support rod (3).

5. A tool-less adjustable support bracket for precast composite floor panels according to claim 1, characterized in that: The positioning assembly (9) includes a positioning plate (901) fixedly connected between a pair of sliding sleeves (5) and an installation cross plate (902) fixedly connected between a pair of adjusting support rods (3).

6. A tool style adjustable support shelf for use with a precast composite floor slab according to claim 5, wherein: A pair of positioning screws (903) are symmetrically threaded onto the mounting plate (902). The bottom end of the positioning screw (903) abuts against the top of the positioning plate (901) to position the sliding sleeve (5).

7. A tool style adjustable support shelf for use with a precast composite floor slab according to claim 6, wherein: An operating handle (904) is fixedly installed at the bottom of each pair of positioning screws (903).

8. A tool-less adjustable support bracket for precast composite floor panels according to claim 1, characterized in that: The support (6) has a triangular structure.

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