An enlarged footing template support device

Abstract

This utility model is an expanded foundation formwork support device, including a top formwork support assembly, a top formwork, and side formwork. The top formwork support assembly passes through the bottom reinforcing bars and is fixed within the foundation and subbase, serving to support and fix the top formwork. The side formwork is installed at both ends of the top of the subbase and abuts against the ends of the top formwork to form a closed structure. The fixed top and side formwork provide top and lateral constraints for concrete pouring, respectively, to ensure the shape accuracy and strength development of the concrete. The top formwork support assembly of this utility model is fixed within the subbase and foundation, avoiding installation on the bottom reinforcing bars and eliminating the possibility of the reinforcing bars floating with the formwork during pouring. The height of the top formwork can be adjusted by adjusting the positions of the lower and upper fixing nuts to ensure the accuracy of the poured concrete. After pouring, vibration is allowed to ensure the later strength of the concrete. Compared with fixed steel formwork, it has a lower cost and better economic efficiency.

Description

Technical Field

[0001] This utility model relates to the field of template support devices, and in particular to an enlarged foundation template support device. Background Technology

[0002] Enlarged foundation formwork is a temporary support structure used for pouring enlarged foundation concrete. It is made according to design requirements to maintain the designed shape and position of the unformed enlarged foundation concrete. After the concrete has cured, the formwork is removed to complete the pouring.

[0003] When pouring enlarged foundation concrete, the foundation pad serves as the bottom support, and brick or wooden formwork can be used for the side formwork. However, setting up the inclined formwork at the top of the enlarged foundation is often difficult. Using fixed steel formwork for foundation pouring incurs significant economic costs. In some projects, the top formwork of the enlarged foundation is eliminated, and the top slope of the foundation concrete is shaped by using concrete with a low slump and manual finishing. However, this method cannot be vibrated, which will affect the later strength of the concrete and the dimensional appearance of the foundation. Besides the above methods, some projects use tie bolts to connect the bottom reinforcement to fix the top formwork. This may cause the top formwork to lift the bottom reinforcement during pouring, affecting the foundation's bearing capacity. Therefore, it is necessary to study an enlarged foundation formwork support device to solve the above problems. Summary of the Invention

[0004] The present invention aims to address the shortcomings of the prior art by providing an expanded foundation template support device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an enlarged foundation formwork support device, including a top formwork support assembly, a top formwork, and side formwork. The top formwork support assembly passes through the bottom reinforcing bars and is fixed in the cushion layer and foundation to support and fix the top formwork. The side formwork is installed at both ends of the top of the cushion layer and abuts against the ends of the top formwork to form a closed structure. The fixed top formwork and side formwork provide top and lateral constraints for concrete pouring, respectively, to ensure the shape accuracy of the concrete and the increase of its strength.

[0006] Specifically, the top formwork support assembly includes a ground-inserting screw rod and an upper fixing nut, a wedge-shaped wooden plug, a triangular pad, and a lower fixing nut that are installed from top to bottom through the ground-inserting screw rod. The upper fixing nut and the lower fixing nut are threadedly connected to the ground-inserting screw rod. The bottom of the ground-inserting screw rod is inserted into the foundation and embedded and fixed in the pad layer.

[0007] Specifically, the triangular pads are made of plastic or precast concrete. The slopes of the wedge-shaped wooden plugs and the triangular pads are consistent with the slope of the top surface of the concrete foundation. The height of the triangular pads is adjusted by the lower fixing nut. The top template has through holes that match the grounding screw. The top template is installed on the grounding screw through the through holes and supported by the triangular pads. The wedge-shaped wooden plugs are tightened and fixed to the top template by tightening the upper fixing nut.

[0008] Specifically, the side formwork is a wooden side formwork, including side panels, connecting beams installed at the upper and lower ends of the outer wall of the side panels, supporting steel pipe main beams installed at the end of the connecting beams away from the side panels, fasteners installed on the supporting steel pipe main beams, and steel pipe diagonal braces installed between the fasteners and the top of the foundation.

[0009] Specifically, the side formwork is a brick mold, and the inside of the brick mold is covered with mortar.

[0010] The beneficial effects of this utility model are: the top formwork support component of this utility model is fixed in the pad layer and foundation, avoiding installation on the bottom reinforcement, and eliminating the phenomenon that the reinforcement may float with the formwork during the pouring process; the height of the top formwork can be adjusted by adjusting the position of the lower fixing nut and the upper fixing nut to ensure the accuracy of the poured concrete, and vibration is allowed after pouring to ensure the later strength of the concrete; compared with the fixed steel formwork, the cost is lower and it has better economic efficiency. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the side template of this utility model when it is a wooden side template;

[0012] Figure 2 This is a structural diagram of the side template of this utility model when it is a brick mold;

[0013] Figure 3 This is a schematic diagram of the top mold support assembly structure of this utility model;

[0014] In the diagram: 1-Top formwork support assembly; 11-Ground bolt; 12-Upper fixing nut; 13-Wedge-shaped wooden plug; 14-Triangular pad; 15-Lower fixing nut; 2-Top formwork; 3-Bottom reinforcement; 4-Bedding layer; 5-Foundation; 6-Wooden side formwork; 61-Side plate; 62-Connecting beam; 63-Supporting steel pipe main beam; 64-Fastener; 65-Steel pipe diagonal brace; 7-Brick formwork;

[0015] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Example 1

[0018] like Figure 1 , Figure 3 As shown, an enlarged foundation formwork support device includes a top formwork support assembly 1, a top formwork 2, and side formwork. The top formwork support assembly 1 passes through the bottom reinforcing steel bar 3 and is fixed in the pad layer 4 and foundation 5 to support and fix the top formwork 2. The side formwork is installed at both ends of the top of the pad layer 4 and abuts against the ends of the top formwork 2 to form a closed structure. The fixed top formwork 2 and side formwork provide top and lateral constraints for concrete pouring, respectively, to ensure the shape accuracy of the concrete and the increase of its strength.

[0019] The top formwork support assembly 1 includes a ground-inserting screw 11 and an upper fixing nut 12, a wedge-shaped wooden plug 13, a triangular pad 14, and a lower fixing nut 15, which are installed from top to bottom on the ground-inserting screw 11. The upper fixing nut 12 and the lower fixing nut 15 are threadedly connected to the ground-inserting screw 11. The bottom of the ground-inserting screw 11 is inserted into the foundation 6 and embedded and fixed in the pad layer 5. The triangular pad 14 is a plastic pad or a precast concrete pad. The slope of the wedge-shaped wooden plug 13 and the triangular pad 14 are consistent with the slope of the top surface of the concrete foundation. The height of the triangular pad 14 is adjusted by the lower fixing nut 15. The top formwork 2 has through holes that match the ground-inserting screw 11. The top formwork 2 is installed on the ground-inserting screw 11 through the through holes and supported by the triangular pad 14. The wedge-shaped wooden plug 13 is tightened and fixed to the top formwork 2 by tightening the upper fixing nut 12.

[0020] The side formwork is a wooden side formwork 6, including a side plate 61, a connecting beam 62 installed at the upper and lower ends of the outer wall of the side plate 61, a supporting steel pipe main beam 63 installed at the end of the connecting beam 62 away from the side plate 61, a fastener 64 installed on the supporting steel pipe main beam 63, and a steel pipe diagonal brace 65 installed between the fastener 64 and the top of the foundation 6.

[0021] Specifically, before pouring the foundation 4, the ground bolt 11 is inserted into the foundation 5 and fixed by the curing of the poured concrete foundation 4. The wedge-shaped wooden plug 13 and the triangular pad 14 have holes with the same diameter as the ground bolt 11, through which they are fitted onto the ground bolt 11. The position of the pad 14 is adjusted by adjusting the lower fixing nut 15 at the height of the ground bolt 11 to determine the installation height of the top formwork 2. After the top formwork 2 is installed, the wedge-shaped wooden plug 13 is pressed tightly against the top formwork 2 by adjusting the upper fixing nut 12 to prevent the top formwork 2 from floating during the pouring process. Then, the wooden side formwork 6 is installed, wherein the supporting steel pipe main beam 63 and the steel pipe diagonal brace 65 are fixed by fasteners 64. The supporting steel pipe main beam 63 provides lateral support for the connecting beam 62, and the connecting beam 62 provides support for the side plate 61.

[0022] Example 2

[0023] like Figure 2 , Figure 3As shown, an enlarged foundation formwork support device includes a top formwork support assembly 1, a top formwork 2, and side formwork. The top formwork support assembly 1 passes through the bottom reinforcing steel bar 3 and is fixed in the pad layer 4 and foundation 5 to support and fix the top formwork 2. The side formwork is installed at both ends of the top of the pad layer 4 and abuts against the ends of the top formwork 2 to form a closed structure. The fixed top formwork 2 and side formwork provide top and lateral constraints for concrete pouring, respectively, to ensure the shape accuracy of the concrete and the increase of its strength.

[0024] The top formwork support assembly 1 includes a ground-inserting screw 11 and an upper fixing nut 12, a wedge-shaped wooden plug 13, a triangular pad 14, and a lower fixing nut 15, which are installed from top to bottom on the ground-inserting screw 11. The upper fixing nut 12 and the lower fixing nut 15 are threadedly connected to the ground-inserting screw 11. The bottom of the ground-inserting screw 11 is inserted into the foundation 6 and embedded and fixed in the pad layer 5. The triangular pad 14 is a plastic pad or a precast concrete pad. The slope of the wedge-shaped wooden plug 13 and the triangular pad 14 are consistent with the slope of the top surface of the concrete foundation. The height of the triangular pad 14 is adjusted by the lower fixing nut 15. The top formwork 2 has a through hole that matches the ground-inserting screw 11. The top formwork 2 is installed on the ground-inserting screw 11 through the through hole and supported by the triangular pad 14. The wedge-shaped wooden plug 13 is tightened and fixed to the top formwork 2 by tightening the upper fixing nut 12.

[0025] The side formwork is a brick mold 7, and the inner side of the brick mold 7 is covered with mortar.

[0026] Specifically, before pouring the foundation pad 4, the ground bolt 11 is inserted into the foundation 5 and fixed by the curing of the poured concrete foundation pad 4. The wedge-shaped wooden plug 13 and the triangular pad 14 have holes with the same diameter as the ground bolt 11, through which they are fitted onto the ground bolt 11. The position of the pad 14 is adjusted by adjusting the lower fixing nut 15 at the height of the ground bolt 11 to determine the installation height of the top formwork 2. After the top formwork 2 is installed, the wedge-shaped wooden plug 13 is pressed tightly against the top formwork 2 by adjusting the upper fixing nut 12 to prevent the top formwork 2 from floating during the pouring process. Then, the brick formwork 7 is installed. The brick formwork 7 is constructed of brick masonry, with the interior plastered with mortar to serve as the side formwork for expanding the foundation concrete pouring.

[0027] The top formwork support component 1 of this utility model is fixed in the pad layer 4 and the foundation 5, avoiding installation on the bottom reinforcing steel 3, and eliminating the phenomenon that the foundation reinforcing steel may float with the formwork during the pouring process; the height of the top formwork 2 can be adjusted by adjusting the position of the lower fixing nut 15 and the upper fixing nut 12 to ensure the accuracy of the poured concrete, and vibration is allowed after pouring to ensure the later strength of the concrete; it is cheaper than the fixed steel formwork and has better economic efficiency.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An enlarged footing formwork support apparatus, characterized by, The system includes a top formwork support assembly (1), a top formwork (2), and side formwork. The top formwork support assembly (1) passes through the bottom reinforcing bars (3) and is fixed inside the cushion layer (4) and foundation (5) to support and fix the top formwork (2). The side formwork is installed at both ends of the top of the cushion layer (4) and abuts against the ends of the top formwork (2) to form a closed structure. The fixed top formwork (2) and side formwork provide top and lateral constraints for concrete pouring, respectively, to ensure the shape accuracy of the concrete and the increase of its strength.

2. An enlarged footing template support apparatus as defined in claim 1, wherein, The top formwork support assembly (1) includes a grounding screw (11) and an upper fixing nut (12), a wedge-shaped wooden plug (13), a triangular pad (14), and a lower fixing nut (15) that are installed from top to bottom through the grounding screw (11). The upper fixing nut (12) and the lower fixing nut (15) are threadedly connected to the grounding screw (11). The bottom of the grounding screw (11) is inserted into the foundation (5) and embedded and fixed in the pad layer (4).

3. An enlarged footing template support apparatus as claimed in claim 2, wherein, The triangular pad (14) is a plastic pad or a precast concrete pad. The slope of the wedge-shaped wooden plug (13) and the triangular pad (14) are consistent with the slope of the top surface of the concrete foundation. The height of the triangular pad (14) is adjusted by the lower fixing nut (15). The top template (2) is provided with a through hole that matches the ground bolt (11). The top template (2) is installed on the ground bolt (11) through the through hole and supported by the triangular pad (14). The wedge-shaped wooden plug (13) is pressed and fixed by tightening the upper fixing nut (12).

4. An enlarged footing template support apparatus as defined in claim 1 wherein, The side formwork is a wooden side formwork (6), including a side plate (61), a connecting beam (62) installed at the upper and lower ends of the outer wall of the side plate (61), a supporting steel pipe main beam (63) installed on the end of the connecting beam (62) away from the side plate (61), a fastener (64) installed on the supporting steel pipe main beam (63), and a steel pipe diagonal brace (65) installed between the fastener (64) and the top of the foundation (5).

5. An enlarged footing template support apparatus as defined in claim 1 wherein, The side formwork is a brick mold (7), and the inner side of the brick mold (7) is covered with mortar.

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