A support device for cantilevered concrete formwork

Abstract

This utility model belongs to the field of building construction technology, specifically relating to a support device for cantilevered concrete formwork. It aims to solve the technical problems of low construction efficiency, high cost, and poor adaptability in existing technologies. This utility model includes a horizontal fixed channel steel, an elastic clamping assembly, and an inclined strut assembly. The horizontal fixed channel steel is fixedly connected to a steel beam via the elastic clamping assembly. One end of the inclined strut assembly is fixedly connected to the horizontal fixed channel steel. The inclined strut assembly is inclined, and the elastic clamping assembly forms an adaptive connection with the steel beam, avoiding the high precision requirements of traditional welding and bolted rigid connections. The overall device meets the requirements for rapid installation and dismantling, flexible adjustment, and safety and reliability of cantilevered formwork support, improving construction efficiency and effectively reducing construction costs and the risks of high-altitude operations.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a support device for cantilevered concrete formwork. Background Technology

[0002] In construction engineering, formwork support for cantilevered concrete structures (such as balconies, canopies, and eaves) is one of the construction challenges. Traditional cantilever formwork support techniques mainly rely on ground-mounted scaffolding and full-span support frames, which have significant shortcomings. For example, ground-mounted scaffolding needs to be erected layer by layer from the ground, occupying a large amount of construction space, and the risks of working at heights are high, especially in narrow spaces or complex structures (such as high-rise buildings) where it is inefficient. Full-span support frames rely on a large amount of reusable materials, and installation and dismantling are time-consuming and labor-intensive. Furthermore, the load transfer path of the cantilevered structure is unclear, which can easily lead to localized stress concentration.

[0003] With the promotion of industrialized construction and new load-bearing structures, steel load-bearing systems, represented by H-beams, are increasingly widely used in cantilever structures. However, existing support devices and H-beams are mostly connected by traditional rigid connections such as welding and bolting. These connections suffer from problems such as high installation accuracy requirements, insufficient adjustment flexibility, and poor structural adaptability. They are unable to meet the rapid assembly requirements under different cantilever spans, elevations, and load conditions. Furthermore, during repeated use, component wear can easily lead to a decline in support performance, increasing construction costs and safety hazards. Therefore, this paper proposes a cantilever concrete formwork support device that can be efficiently connected to H-beams, is easy to adjust, and is safe and reliable, in order to solve the technical problems of low construction efficiency, high cost, and poor adaptability in existing technologies. Utility Model Content

[0004] In order to solve the technical problem of low construction efficiency in the prior art, this utility model provides a support device for cantilever concrete formwork, including a horizontal fixed channel steel, an elastic clamping assembly, and an inclined strut assembly.

[0005] The horizontal fixed channel steel is fixedly connected to the steel beam through the elastic clamping assembly, and one end of the inclined strut assembly is fixedly connected to the horizontal fixed channel steel. The inclined strut assembly is set at an angle.

[0006] According to some embodiments of this application, a support device for cantilevered concrete formwork is provided, wherein the side wall of the horizontal fixed channel steel is provided with multiple through holes.

[0007] According to some embodiments of this application, a support device for cantilevered concrete formwork is provided, wherein at least two sets of elastic clamping components are provided. Each elastic clamping component includes a pressure plate and a hinge. One side of the hinge is fixedly connected to the horizontal fixed channel steel, and the other side of the hinge is fixedly connected to one end of the pressure plate. The other end of the pressure plate abuts against the steel beam so that the elastic clamping components clamp the steel beam. The two sets of elastic clamping components clamp the two sides of the steel beam respectively.

[0008] According to some embodiments of this application, a support device for cantilevered concrete formwork further includes a U-shaped connecting bolt and a spring. The U-shaped connecting bolt passes through the pressure plate and extends to the outside. A nut is adapted to be provided at the end of the U-shaped connecting bolt, and the spring is disposed between the pressure plate and the nut.

[0009] According to some embodiments of this application, a support device for cantilevered concrete formwork is provided, wherein the inclined strut assembly includes an inclined strut, a sliding connection, and a top plate;

[0010] The sliding connection and the top plate are respectively disposed at both ends of the inclined rod. The inclined rod is fixedly connected to the horizontal fixed channel steel through the sliding connection and bolts. One end face of the top plate is fixedly connected to the end of the inclined rod away from the sliding connection.

[0011] According to some embodiments of this application, a support device for cantilevered concrete formwork is provided, wherein at least three through holes are provided on the sliding connection part, the through holes of the sliding connection part are corresponding to the through holes of the horizontal fixed channel steel, and the sliding connection part and the horizontal fixed channel steel can be fixed by the through holes and bolts.

[0012] According to some embodiments of this application, a support device for cantilevered concrete formwork is provided, wherein a buffer pad is provided on the top of the top plate.

[0013] The beneficial effects of this utility model are:

[0014] The elastic clamping assembly forms an adaptive connection with the H-beam, avoiding the high precision requirements of traditional welding and bolted rigid connections. The adjustable hole design of the horizontal support channel steel and the diagonal struts enables rapid adaptation of the support angle and position. The triangular support structure and contact steel plate design improve the uniformity of load transfer and system stability. Overall, it meets the requirements of rapid installation and dismantling, flexible adjustment and safety and reliability of cantilever formwork support, improves construction efficiency, effectively reduces construction costs and high-altitude operation risks, and is suitable for the construction of cantilever structures such as building balconies and canopies. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 These are perspective views of some embodiments of this application;

[0017] Figure 2 These are side view diagrams of some embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the elastic clamping component structure of some embodiments of this application.

[0019] In the diagram: 1. Horizontal fixed channel steel; 2. Elastic clamping assembly; 21. Pressure plate; 22. Hinge; 23. U-shaped connecting bolt; 24. Spring; 3. Diagonal strut assembly; 31. Diagonal bar; 32. Sliding connection; 33. Top plate; 4. Steel beam. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-3 As shown, this utility model provides a support device for cantilevered concrete formwork, which includes a horizontal fixed channel steel 1, an elastic clamping assembly 2, and an inclined strut assembly 3.

[0023] The horizontal fixed channel steel 1 is fixedly connected to the steel beam 4 through the elastic clamping assembly 2. One end of the inclined strut assembly 3 is fixedly connected to the horizontal fixed channel steel 1. The inclined strut assembly 3 is inclined. The side wall of the horizontal fixed channel steel 1 is provided with multiple through holes.

[0024] In specific implementation, steel beam 4 is an H-shaped steel beam, and horizontal fixed channel steel 1 is located at the bottom of the device as the core load-bearing component. A row of bolt holes is opened horizontally along the cantilever direction. The lower end of the inclined strut assembly 3 is connected to the bolt holes of the channel steel through high-strength bolts. Since there are multiple bolt through holes, the inclined strut assembly 3 can slide horizontally along the channel steel. Its position can be fixed according to actual use needs to adjust the horizontal position and tilt angle of the support point. The tilt angle is usually 45°-60° to adapt to different cantilever spans, elevations and load conditions. After adjustment, the position of the inclined strut is locked by the friction and shearing action of the bolt holes and high-strength bolts to form a rigid connection to prevent slippage.

[0025] In some embodiments, at least two sets of elastic clamping components 2 are provided. The elastic clamping components 2 include a pressure plate 21, a hinge 22, a U-shaped connecting bolt 23, and a spring 24. One side of the hinge 22 is fixedly connected to the horizontal fixed channel steel 1, and the other side of the hinge 22 is fixedly connected to one end of the pressure plate 21. The other end of the pressure plate 21 abuts against the steel beam 4 so that the elastic clamping components 2 clamp the steel beam 4. The two sets of elastic clamping components 2 clamp the two sides of the steel beam 4 respectively. The U-shaped connecting bolt 23 passes through the pressure plate 21 and extends to the outside. The end of the U-shaped connecting bolt 23 is fitted with a nut. The spring 24 is disposed between the pressure plate 21 and the nut.

[0026] In specific implementation, the two sets are the left elastic clamping assembly and the right elastic clamping assembly, respectively. The two sets of elastic clamping assemblies 2 correspond to both sides of the lower flange of the steel beam 4. They are spring-type arc-shaped pressure plate clamping mechanisms with hinges. The fixing part of the hinge 22 is welded to the upper surface of the horizontal fixing channel steel 1. The pressure plate 21 is arc-shaped, and the end of the pressure plate 21 is welded to the movable end of the hinge. It is hinged to the fixing part by a pin, so that the pressure plate 21 can rotate around the hinge point to fit the flange contour of the steel beam 4. The U-shaped connecting bolt 23 passes through the connecting hole opened on the side of the horizontal fixing channel steel 1 and the end face of the pressure plate 21. The spring 24 is sleeved on the thread of the U-shaped connecting bolt and is located between the nut and the pressure plate 21. When the U-shaped connecting bolt 23 is tightened, the nut compresses and deforms the spring 24. The reaction force of the spring 24 pushes the arc-shaped pressure plate 21 to rotate around the movable end of the hinge 22, so that the inner arc surface of the pressure plate 21 is tightly attached to the upper surface of the lower flange of the steel beam 4. The elastic deformation of the spring 24 automatically compensates for the shape differences of the flange of the steel beam 4 (such as thickness deviation and flatness error), realizing adaptive clamping. At the same time, the two pressure plates 21 are symmetrically squeezed towards the center of the flange under the action of the bolt axial tension, forming a double constraint of mechanical clamping force and spring preload. The U-shaped connecting bolt 23 adopts a galvanized square clamp structure. When the bolt is loosened, the relative position of the horizontal fixed channel steel 1 and the elastic clamping component 2 can be adjusted to realize the overall horizontal fine adjustment of the device. After re-tightening, it ensures that there is no loosening or displacement under construction load. It has both connection rigidity and adjustment flexibility, effectively resisting the lateral slippage caused by horizontal load and the slippage tendency caused by vertical load, and providing a stable anchoring base for the entire support device. This structure does not require precise alignment; it can be quickly disassembled and fixed by loosening / tightening bolts, making it easy to use.

[0027] In some embodiments, the diagonal strut assembly 3 includes a diagonal strut 31, a sliding connection 32, and a top plate 33;

[0028] The sliding connection 32 and the top plate 33 are respectively provided at both ends of the inclined rod 31. The inclined rod 31 is fixedly connected to the horizontal fixed channel steel 1 through the sliding connection 32 and bolts. One end face of the top plate 33 is fixedly connected to the end of the inclined rod 31 away from the sliding connection 32. The sliding connection 32 is provided with at least three through holes. The through holes of the sliding connection 32 are opened corresponding to the through holes of the horizontal fixed channel steel 1. The sliding connection 32 and the horizontal fixed channel steel can be fixed through the through holes and bolts. A buffer pad is provided on the top of the top plate 33.

[0029] In specific implementation, such as Figure 2As shown, the diagonal strut assembly 3 is located on the right side of the device. Its lower end is hinged to the bolt holes of the horizontal fixed channel steel 1 via high-strength bolts, allowing it to slide horizontally along the channel steel to adjust the tilt angle. The top plate 33 welded to the upper end of the diagonal strut 31 is a rectangular steel plate. The surface of the top plate 33 is equipped with a rubber buffer pad that contacts the template surface. This pad converts the vertical load borne by the template into axial pressure, which is then transmitted to the horizontal fixed channel steel 1 via the lower hinge point, and then to the H-beam 4 via the elastic clamping assembly 2. The top plate 33 increases the contact area with the template, preventing local crushing. In addition, the diagonal strut 31 and the horizontal fixed channel steel 1 form a triangular support system, enhancing the overall lateral stiffness and resisting horizontal displacement caused by construction loads. The design of changing the tilt angle through horizontal sliding allows for adaptation to different height and span requirements of cantilever structures without replacing components.

[0030] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0033] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A support device for cantilevered concrete formwork, characterized in that, Includes horizontal fixed channel steel, elastic clamping assembly, and diagonal strut assembly; The horizontal fixed channel steel is fixedly connected to the steel beam through the elastic clamping assembly, and one end of the inclined strut assembly is fixedly connected to the horizontal fixed channel steel. The inclined strut assembly is set at an angle.

2. The support device for cantilevered concrete formwork according to claim 1, characterized in that, The sidewall of the horizontal fixed channel steel has multiple through holes.

3. A support device for cantilevered concrete formwork according to claim 1, characterized in that, At least two sets of the elastic clamping components are provided. Each elastic clamping component includes a pressure plate and a hinge. One side of the hinge is fixedly connected to the horizontal fixed channel steel, and the other side of the hinge is fixedly connected to one end of the pressure plate. The other end of the pressure plate abuts against the steel beam so that the elastic clamping components clamp the steel beam. The two sets of elastic clamping components clamp the two sides of the steel beam respectively.

4. A support device for cantilevered concrete formwork according to claim 3, characterized in that, It also includes a U-shaped connecting bolt and a spring, the U-shaped connecting bolt passing through the pressure plate and extending to the outside, the end of the U-shaped connecting bolt being fitted with a nut, and the spring being disposed between the pressure plate and the nut.

5. A support device for cantilevered concrete formwork according to claim 2, characterized in that, The diagonal strut assembly includes a diagonal strut, a sliding connection, and a top plate; The sliding connection and the top plate are respectively disposed at both ends of the inclined rod. The inclined rod is fixedly connected to the horizontal fixed channel steel through the sliding connection and bolts. One end face of the top plate is fixedly connected to the end of the inclined rod away from the sliding connection.

6. A support device for cantilevered concrete formwork according to claim 5, characterized in that, The sliding connection part has at least three through holes, and the through holes of the sliding connection part correspond to the through holes of the horizontal fixed channel steel. The sliding connection part and the horizontal fixed channel steel can be fixed by the through holes and bolts.

7. A support device for cantilevered concrete formwork according to claim 5, characterized in that, A cushioning pad is provided on the top of the top plate.

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