C-shaped hollow steel keel and keel formwork assembling structure

Abstract

The invention discloses a C-shaped hollow steel keel and a keel formwork assembly structure, relates to the technical field of formwork connection, and mainly aims to improve the convenience of building formwork construction. According to the main technical scheme, the C-shaped hollowed-out steel keel comprises a keel body and a plurality of reinforcing rib plates; the keel body is provided with a groove extending in the axial direction, a plurality of openings are sequentially formed in the bottom wall of the groove, and a plurality of limiting holes are sequentially formed in the opposite side walls of the groove. And the reinforcing rib plate is fixedly connected to the radial inner edge of the groove.

Description

Technical Field

[0001] The invention relates to the technical field of template connection, and in particular to a C-shaped hollow steel keel and a keel formwork assembly structure. Background Art

[0002] The construction industry has always been a major industry for natural resource consumption, especially in the construction of building formwork, where a large amount of wood is consumed every year. With the continuous progress of my country's economy and the increasing emphasis on low-carbon, environmental protection, and green development concepts, traditional construction and formwork construction technologies can no longer meet the development needs of today's society. With the continuous emergence of science and technology and new materials, new materials such as aluminum formwork, plastic formwork, and steel formwork have been promoted in construction. However, the formwork costs of these materials are relatively high. They are more economical in the construction of high-rise and super-high-rise buildings, but are not suitable for use in single-story, multi-story, and small high-rise buildings.

[0003] In addition, ordinary square steel keels have also appeared on the market as a substitute for traditional wooden squares and ordinary scaffolding steel pipe formwork. This method can indeed significantly reduce the consumption of wood and reduce the frequency of use of steel pipe fasteners, thereby relatively saving construction costs. However, its disadvantages are also obvious: square steel keels are large in size and heavy in weight, which increases the labor intensity of operators, and their prices are also high. They are not practical and economical in buildings with few floors, so their promotion in the industry has been subject to certain restrictions and obstacles. Summary of the invention

[0004] In view of this, the present invention provides a C-shaped hollow steel keel and a keel formwork assembly structure, the main purpose of which is to improve the convenience of building formwork construction.

[0005] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0006] In one aspect, the present invention provides a C-shaped hollow steel keel, which comprises: a keel body and a plurality of reinforcing rib plates;

[0007] The keel body is provided with an axially extending groove, a bottom wall of the groove is sequentially arranged with a plurality of openings, and opposite side walls of the groove are sequentially arranged with a plurality of limiting holes;

[0008] The reinforcing rib plate is fixedly connected to the radial inner edge of the groove.

[0009] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0010] Optionally, the reinforcing rib plate and the opening are staggered with each other.

[0011] Optionally, the periphery of the opening is bent toward the inside of the groove to form an inner flange.

[0012] Optionally, the upper edge of the reinforcing rib plate is flush with the upper edge of the side wall of the groove.

[0013] Optionally, an upper edge of the side wall of the groove is bent inward.

[0014] On the other hand, the present invention also provides a keel formwork assembly structure, which includes: an L-shaped hook body, a longitudinal horizontal keel and a transverse horizontal keel, the longitudinal horizontal keel and the transverse horizontal keel are both the aforementioned C-shaped hollow steel keels, the longitudinal horizontal keel and the transverse horizontal keel are staggered up and down, one end of the L-shaped hook body is hooked on the limiting hole of the longitudinal horizontal keel, and the other end passes through the opening of the transverse horizontal keel and is threadedly connected to a fastening nut.

[0015] By means of the above technical solution, the present invention has at least the following advantages:

[0016] First of all, by using 2.75mm thick galvanized steel plates, which are made through a hole-punching and folding process, the keel is not only light and strong, but also has excellent versatility. It can replace traditional wooden keels and scaffolding steel pipes at the same time, greatly improving construction efficiency.

[0017] The design of the reinforcing rib plate improves the structural strength of the keel body, thereby further improving the performance and safety of the keel body.

[0018] The design of the main opening and limiting holes of the keel matches the modular hole size and hole spacing when the formwork is supported, which improves the smoothness and stability of the connection between the keel and the screw.

[0019] The C-shaped hollow steel keel enhances the structural strength of the formwork support system. This innovative design effectively overcomes the common problems of mold expansion and mold running during concrete pouring, ensures the flatness and overall appearance of concrete pouring, and thus improves the quality of the project.

[0020] The C-shaped hollow steel keel has a unique design. By processing C-shaped hollow steel keels of different lengths and supplementing them with 620 (length) * 62 (width) C-shaped hollow lined steel keels, it can achieve flexible adjustment in length to meet the actual needs of various building components. Compared with traditional wooden squares, steel pipes, and square steel formwork, its practicality is improved, which brings great convenience to construction.

[0021] The C-shaped hollow steel keel uses square steel as the main material, which has excellent durability and can be used up to 20 times. Compared with the traditional wooden square, which can only be used up 5 times, the service life of the new keel is increased by about 3 times, which significantly reduces the construction cost and improves the economic benefits.

[0022] The C-shaped hollow steel keel adopts a standardized production mode, which is light and easy to operate. The specially designed opening periphery is bent inward to form an arc-shaped inner edge, which greatly simplifies the process of inserting screws when supporting the formwork and removing the screws when removing the formwork, and improves the construction efficiency by about 50%. Compared with traditional materials, the new keel performs well in construction efficiency.

[0023] The C-shaped hollow steel keel significantly reduces the use of wood. The materials used are environmentally friendly and recyclable, with little pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A top view of a C-shaped hollow steel keel provided in an embodiment of the present invention;

[0025] Figure 2 A side view of a C-shaped hollow steel keel provided in an embodiment of the present invention;

[0026] Figure 3 for Figure 1 The view from the AA point in the middle;

[0027] Figure 4 A structural schematic diagram of a keel formwork assembly structure provided in an embodiment of the present invention.

[0028] The figure marks in the drawings of the specification include: keel body 1, opening 2, limiting hole 3, reinforcing rib plate 4, L-shaped hook body 5, longitudinal horizontal keel 601, transverse horizontal keel 602, vertical keel 603, inner flange 7. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, on the one hand, an embodiment of the present invention provides a C-shaped hollow steel keel, which includes: a keel body 1 and a plurality of reinforcing rib plates 4;

[0032] The keel body 1 is provided with an axially extending groove, a plurality of openings 2 are sequentially arranged on the bottom wall of the groove, and a plurality of limiting holes 3 are sequentially arranged on the opposite side walls of the groove;

[0033] The reinforcing rib plate 4 is fixedly connected to the radial inner edge of the groove.

[0034] Specifically, the edge of the reinforcing rib plate 4 is welded to the inner edge of the radial cross section of the groove to fix the position of the reinforcing rib plate 4 in the groove of the keel body 1 .

[0035] In a specific embodiment, the reinforcing rib plate 4 and the opening 2 are staggered with each other.

[0036] In this embodiment, the reinforcing rib plate 4 strengthens the structural strength of the keel body 1 in the radial width direction. At the same time, the reinforcing rib plate 4 and the opening 2 are staggered with each other. The reinforcing rib plate 4 will not affect the bolt rod passing through the opening 2 and will not hinder the operation of the construction personnel.

[0037] In a specific embodiment, the periphery of the opening 2 is bent toward the inside of the groove to form an inner flange 7 .

[0038] In this embodiment, specifically, the periphery of the opening 2 is bent toward the inside of the groove to form an arc-shaped inner flange 7. Regardless of inserting the screw when supporting the mold or removing the screw when removing the mold, the screw contacts the arc surface of the arc-shaped inner flange 7 to prevent the screw from being stuck.

[0039] In a specific embodiment, the upper edge of the reinforcing rib plate 4 is flush with the upper edge of the side wall of the groove.

[0040] In this embodiment, specifically, the upper edge of the reinforcing rib plate 4 is flush with the upper edge of the groove side wall, thereby providing radial support to the groove structure of the keel body 1 to the greatest extent, and the reinforcing rib plate 4 will not protrude outside the groove. During the use of the keel body 1, when the keel body 1 slides relative to the template board surface, the reinforcing rib plate 4 will not scratch the template.

[0041] In a specific embodiment, the upper edge of the side wall of the groove is bent inward.

[0042] In this embodiment, the upper edge of the groove side wall is bent inward, thereby enhancing the axial anti-bending performance of the keel body 1.

[0043] like Figure 4 As shown, on the other hand, an embodiment of the present invention provides a keel formwork assembly structure, which includes: an L-shaped hook body 5, a longitudinal horizontal keel 601 and a transverse horizontal keel 602, the longitudinal horizontal keel 601 and the transverse horizontal keel 602 are both the aforementioned C-shaped hollow steel keels, the longitudinal horizontal keel 601 and the transverse horizontal keel 602 are staggered up and down, one end of the L-shaped hook body 5 is hooked on the limiting hole 3 of the longitudinal horizontal keel 601, and the other end passes through the opening 2 of the transverse horizontal keel 602, and is threadedly connected to a fastening nut.

[0044] The working process of the keel formwork assembly structure is as follows: the longitudinal horizontal keel 601 and the transverse horizontal keel 602 are staggered up and down, the longitudinal horizontal keel 601 is located below the transverse horizontal keel 602, the longitudinal horizontal keel 601 and the transverse horizontal keel 602 are vertically cross-arranged, the bottom wall of the groove of the longitudinal horizontal keel 601 and the bottom wall of the groove of the transverse horizontal keel 602 are both close to the template board surface, one end of the L-shaped hook body 5 passes through the limiting hole 3 on the upper side wall of the groove of the longitudinal horizontal keel 601, and the other end passes through the opening 2 on the bottom wall of the groove of the transverse horizontal keel 602, and is threadedly connected to the nut. As the nut is tightened, the transverse horizontal keel 602 gradually fits closely to the template board surface.

[0045] Specifically, it also includes a plurality of vertical keels 603, which are arranged in sequence along the horizontal direction of the template board surface, and the longitudinal horizontal keels 601 and the transverse horizontal keels 602 are respectively located on the outside of the vertical keels 603, for pressing the plurality of vertical keels 603 against the template board surface.

[0046] Specifically, the vertical keel 603 is also the aforementioned C-shaped hollow steel keel.

[0047] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A C-shaped hollow steel keel, characterized in that: include: A keel body, wherein the keel body is provided with an axially extending groove, a bottom wall of the groove is sequentially provided with a plurality of openings, and opposite side walls of the groove are sequentially provided with a plurality of limiting holes; A plurality of reinforcing ribs are fixedly connected to the radial inner edge of the groove.

2. The C-shaped hollow steel keel according to claim 1, characterized in that: The reinforcing rib plate and the opening are staggered with each other.

3. The C-shaped hollow steel keel according to claim 1, characterized in that: The periphery of the opening is bent toward the inside of the groove to form an inner turning edge.

4. The C-shaped hollow steel keel according to claim 1, characterized in that: The upper edge of the reinforcing rib plate is flush with the upper edge of the side wall of the groove.

5. The C-shaped hollow steel keel according to claim 1, characterized in that: The upper edge of the side wall of the groove is bent inwardly.

6. A keel formwork assembly structure, characterized in that: include: An L-shaped hook body, a longitudinal horizontal keel and a transverse horizontal keel, wherein the longitudinal horizontal keel and the transverse horizontal keel are both the C-shaped hollow steel keel as described in any one of claims 1 to 5, and the longitudinal horizontal keel and the transverse horizontal keel are staggered up and down, and one end of the L-shaped hook body is hooked on the limiting hole of the longitudinal horizontal keel, and the other end passes through the opening of the transverse horizontal keel and is threadedly connected to a fastening nut.

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