Secondary keel for building formwork supporting system and building formwork supporting system

Abstract

The utility model discloses a secondary keel for a building template supporting system and the building template supporting system, the secondary keel comprises a thin-wall hollow square tube, the middle parts of the four tube walls of the thin-wall hollow square tube are respectively provided with a concave structure which is concave towards the inner side of the tube body; a set of square convex ribs extending in the length direction are symmetrically arranged on the inner wall faces of the two sides of the inwards-concave structure, and triangular reinforcing ribs extending in the length direction are symmetrically arranged on the outer wall faces of the two sides of the inwards-concave structure. The aluminum alloy thin-wall square tube is combined with the reinforcing ribs on the two sides, so that the product has high recovery rate and excellent mechanical property; the product is light in weight, the carrying and mounting efficiency is remarkably improved, a top plate supporting system can be rapidly built, the vertical formwork reinforcing requirement is met, and the construction period is effectively shortened.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology for civil engineering, specifically to a secondary keel for a building formwork support system and a building formwork support system. Background Technology

[0002] In building formwork support systems, secondary joists are key components for transferring loads, and their performance directly affects construction quality and efficiency. Currently, the industry commonly uses timber, steel-timber joists, and square steel pipes as secondary joist materials, and a relatively mature production, use, and recycling system has been established.

[0003] Specifically, timber is widely used due to its ease of processing, but it has inherent defects such as low strength, flammability, susceptibility to moisture, warping, and insect infestation, resulting in limited reuse. Furthermore, timber production consumes a large amount of wood resources, and it is difficult to recycle and reuse after disposal, easily generating construction waste and failing to meet green construction requirements. Steel-wood joists improve mechanical properties to some extent through a composite structure of metal and wood, but their production process is complex and still cannot completely overcome the problems of wood's flammability and corrosion. While square steel pipes have high strength, their large weight makes them inconvenient to transport during construction, and the inability to directly nail nails into their surface leads to cumbersome connection and fixing operations with formwork.

[0004] Furthermore, when used as back ribs for vertical formwork reinforcement, the aforementioned materials still suffer from problems such as complex connection methods and insufficient adaptability. With the construction industry's urgent need for lightweight, high-strength, and environmentally friendly materials, a new technical solution that can comprehensively improve upon the shortcomings of existing secondary keel materials is urgently needed. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model proposes a secondary keel for a building formwork support system and a building formwork support system, which can overcome the above-mentioned deficiencies of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0007] A secondary keel for a building formwork support system;

[0008] The secondary keel of the building formwork support system includes thin-walled hollow square tubes. The four sides of the thin-walled hollow square tubes are provided with concave structures that are recessed into the inside of the tube. A set of square convex ribs extending along the length direction are symmetrically provided on the inner wall surface on both sides of the concave structure. A set of triangular reinforcing ribs extending along the length direction are symmetrically provided on the outer wall surface on both sides of the concave structure.

[0009] Furthermore, the lengths of the two concave folds of the concave structure are equal; the ratio of the height to the width of the square rib is between 1:1 and 1:1.5; and the cross-section of the triangular reinforcing rib is an isosceles triangle.

[0010] Furthermore, the height of the square rib is 1.5-3mm and the width is 2-4mm; the height of the triangular reinforcing rib is 0.3-0.8mm; the wall thickness of the thin-walled hollow square tube is 1.5-3mm and the side length of the cross section is 40-80mm.

[0011] Furthermore, the thin-walled hollow square tube is made of aluminum alloy or stainless steel.

[0012] Furthermore, the cross-section of the concave structure is axially symmetrical, with its bottom width being 1 / 3 to 1 / 2 of the pipe wall width and its recess depth being 0.8 to 1.2 times the wall thickness.

[0013] Furthermore, the distance between the square convex rib and the center line of the concave structure is 5-10mm, and the distance between the triangular reinforcing rib and the center line of the concave structure is 3-6mm.

[0014] According to a second aspect of the present invention, a building formwork support system is provided;

[0015] The building formwork support system includes the secondary keel used in the above-mentioned building formwork support system. Its characteristic is that it further includes support poles, the top of which is provided with an adjustable top support; main keels are arranged parallel to each other on the adjustable top support; secondary keels are arranged perpendicularly and intersectingly on the main keels, the secondary keels being made of the thin-walled hollow square tubes; a top wooden formwork is laid on the secondary keels, the top wooden formwork being fixedly connected to the thin-walled hollow square tubes by nails.

[0016] According to a third aspect of this utility model, a building formwork support system is provided;

[0017] The building formwork support system includes the aforementioned secondary keel for the building formwork support system, characterized in that the secondary keel for the building formwork support system is set between the wooden formwork of the wall and the back rib, and the thin-walled hollow square tube is set perpendicularly to the back rib.

[0018] Furthermore, the wall wooden template is fixedly connected to the thin-walled hollow square tube, and the wall wooden template is detachably connected to the back rib through a connecting component. The thin-walled hollow square tube and the back rib are tightly fitted together.

[0019] The beneficial effects of this utility model are as follows: By using aluminum alloy thin-walled square tubes combined with a double-sided reinforcing rib structure, the product has both high recyclability and excellent mechanical properties. Compared with wood, it has advantages in high recyclability, corrosion resistance and flame retardancy. Compared with steel-wood keel, the processing technology is simpler and the processing efficiency is improved. Compared with square steel tubes, it achieves lightweight and the tube walls can be nailed together. The lightweight characteristics of this utility model product significantly improve the efficiency of handling and installation, can quickly build a roof support system and adapt to the vertical formwork reinforcement requirements, effectively shortening the construction cycle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional schematic diagram of a secondary keel for a building formwork support system according to an embodiment of the present utility model;

[0022] Figure 2 This is a partial schematic diagram of a secondary keel for a building formwork support system according to an embodiment of the present utility model;

[0023] Figure 3 This is a perspective view of a secondary keel for a building formwork support system according to an embodiment of the present utility model;

[0024] Figure 4 This is a three-dimensional view of the overall structure of a building formwork support system according to an embodiment of the present utility model;

[0025] Figure 5 This is a partial perspective view of a building formwork support system according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the laying of the top wooden formwork of a building formwork support system according to an embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the installation of wooden formwork for a building formwork support system according to an embodiment of the present utility model;

[0028] Figure 8 This is a partial detail drawing of the wooden formwork for the wall of a building formwork support system according to an embodiment of the present utility model;

[0029] In the diagram: 1. Thin-walled hollow square tube; 2. Concave structure; 3. Square convex rib; 4. Triangular reinforcing rib; 5. Supporting upright; 6. Adjustable top support; 7. Main keel; 8. Top slab wooden formwork; 9. Supporting bottom support; 10. Supporting horizontal bar; 11. Supporting diagonal bar; 12. Wall wooden formwork; 13. Back rib; 14. Connecting components. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0031] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0032] like Figure 1-3 As shown, a secondary keel for a building formwork support system according to an embodiment of the present utility model includes a thin-walled hollow square tube 1. The four sides of the thin-walled hollow square tube 1 are provided with concave structures 2 that are recessed into the inner side of the tube. A set of square ribs 3 extending along the length direction are symmetrically provided on the inner wall surface on both sides of the concave structure 2. A set of triangular reinforcing ribs 4 extending along the length direction are symmetrically provided on the outer wall surface on both sides of the concave structure 2.

[0033] According to an embodiment of the present invention, a secondary keel for a building formwork support system is provided. In a specific embodiment, the lengths of the two concave folds of the concave structure 2 are equal; the ratio of the height to the width of the square rib 3 is between 1:1 and 1:1.5; and the cross-section of the triangular reinforcing rib 4 is an isosceles triangle.

[0034] According to an embodiment of the present invention, a secondary keel for a building formwork support system is provided. In a specific embodiment, the height of the square rib 3 is 1.5-3mm and the width is 2-4mm; the height of the triangular reinforcing rib 4 is 0.3-0.8mm; and the wall thickness of the thin-walled hollow square tube 1 is 1.5-3mm and the side length of the cross section is 40-80mm.

[0035] According to an embodiment of the present invention, a secondary keel for a building formwork support system is provided. In a specific embodiment, the thin-walled hollow square tube 1 is made of aluminum alloy or stainless steel.

[0036] According to an embodiment of the present invention, a secondary keel for a building formwork support system is provided. In a specific embodiment, the cross-section of the concave structure 2 is axially symmetrical, the width of its bottom surface is 1 / 3 to 1 / 2 of the width of the pipe wall, and the depth of the concavity is 0.8 to 1.2 times the wall thickness.

[0037] According to an embodiment of the present invention, a secondary keel for a building formwork support system is provided. In a specific embodiment, the distance between the square convex rib 3 and the center line of the concave structure 2 is 5-10mm, and the distance between the triangular reinforcing rib 4 and the center line of the concave structure 2 is 3-6mm.

[0038] like Figure 4-6 As shown in the embodiment of this utility model, a building formwork support system includes the secondary keel for the building formwork support system described above, and also includes a support pole 5. The top of the support pole 5 is provided with an adjustable top support 6. The adjustable top support 6 is provided with a main keel 7 arranged in parallel. The main keel 7 is provided with a secondary keel arranged perpendicularly. The secondary keel is made of the thin-walled hollow square tube 1. A top wooden formwork 8 is laid on the secondary keel. The top wooden formwork 8 is fixedly connected to the thin-walled hollow square tube 1 by nails.

[0039] like Figure 7-8 As shown in the embodiment of this utility model, a building formwork support system includes a secondary keel for the building formwork support system. The secondary keel is disposed between the wall wooden formwork 12 and the back rib 13. The thin-walled hollow square tube 1 is perpendicular to the back rib 13. The wall wooden formwork 12 and the thin-walled hollow square tube 1 are fixedly connected. The wall wooden formwork 12 and the back rib 13 are detachably connected by a connecting member 14. The thin-walled hollow square tube 1 and the back rib 13 are tightly fitted together.

[0040] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0041] In practical use, according to the secondary keel of the building formwork support system described in this utility model, the thin-walled hollow square tube 1 is a lightweight high-strength square tube; the whole is thin-walled hollow square.

[0042] There is a slightly concave inward structure 2 at the center of each of the four sides, which serves to strengthen the wall of the thin-walled hollow square tube 1.

[0043] The concave structure 2 has square ribs 3 at both ends, which serve as inner reinforcing ribs of the thin-walled hollow square tube 1.

[0044] The concave structure 2 has a tiny triangular reinforcing rib 4 at each end, which serves as the outer reinforcing rib of the thin-walled hollow square tube 1.

[0045] Taking advantage of the advantages of aluminum alloy materials such as easy processing, high recycling value, high strength, low hardness, light weight, and corrosion resistance, aluminum alloy secondary keel is designed.

[0046] The thin-walled square section is optimized as the basic section. A concave structure 2 is set in the center of each side, and convex ribs are added to the inner and outer surfaces to strengthen the thin-walled square tube. Under the premise of a small increase in material, the moment of inertia of the section is greatly improved.

[0047] The aluminum alloy square tube has a thin wall, can be nailed, and can be easily connected to the roof wooden formwork 8 or the wall wooden formwork 12.

[0048] In summary, by utilizing the above-mentioned technical solution of this utility model, and employing aluminum alloy thin-walled square tubes combined with reinforcing ribs on both sides, the product possesses both high recyclability and excellent mechanical properties. Compared to timber, it offers advantages in high recyclability, corrosion resistance, and flame retardancy. Compared to steel-wood keel, its processing technology is simpler, improving processing efficiency. Compared to square steel pipes, it achieves lightweighting and allows for nailing of the pipe walls. The lightweight characteristics of this utility model significantly improve handling and installation efficiency, enabling rapid construction of a roof support system and adapting to vertical formwork reinforcement requirements, effectively shortening the construction cycle.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A secondary joist for a building formwork support system, characterised in that, The thin-walled hollow square tube (1) is provided with an inner recess structure (2) recessed to the inside of the tube body in the middle of the four walls; a group of square protruding ribs (3) extending along the length direction are symmetrically arranged on the inner wall surface of both sides of the inner recess structure (2); and a group of triangular reinforcing ribs (4) extending along the length direction are symmetrically arranged on the outer wall surface of both sides of the inner recess structure (2).

2. A secondary joist for use in a building formwork support system according to claim 1, characterised in that, The length of the two inner recessed folds of the inner recess structure (2) is equal; the ratio of the height to the width of the square protruding rib (3) is 1:1 to 1:1.5; and the cross section of the triangular reinforcing rib (4) is isosceles triangle.

3. A secondary joist for use in a building formwork support system according to claim 1, characterised in that, The height of the square protruding rib (3) is 1.5-3mm, and the width is 2-4mm; the height of the triangular reinforcing rib (4) is 0.3-0.8mm; the wall thickness of the thin-walled hollow square tube (1) is 1.5-3mm, and the cross section side length is 40-80mm.

4. A secondary joist for use in a building formwork support system according to claim 1, characterised in that, The thin-walled hollow square tube (1) is made of aluminum alloy material or stainless steel material.

5. A secondary joist for use in a building formwork support system according to claim 1, characterised in that, The cross section of the inner recess structure (2) is axially symmetric, the bottom surface width is 1 / 3-1 / 2 of the wall width, and the recess depth is 0.8-1.2 times of the wall thickness.

6. A secondary joist for use in a building formwork support system according to claim 1, characterised in that, The distance of the square protruding rib (3) from the center line of the inner recess structure (2) is 5-10mm, and the distance of the triangular reinforcing rib (4) from the center line of the inner recess structure (2) is 3-6mm.

7. A building formwork support system comprising the secondary joist for a building formwork support system according to any one of claims 1 to 6, characterised in that, It also includes a support vertical rod (5) provided with an adjustable top support (6) at the top; the adjustable top support (6) is provided with a main keel (7) arranged in parallel; the main keel (7) is provided with a secondary keel arranged vertically and crosswise, and the secondary keel is made of the thin-walled hollow square tube (1); a top plate wooden formwork (8) is laid on the secondary keel and fixedly connected with the thin-walled hollow square tube (1) through nailing.

8. A building formwork support system comprising the secondary joist of any one of claims 1 to 6, wherein, The building formwork support system is arranged between the wall wooden formwork (12) and the back ridge (13) by the secondary keel, and the thin-walled hollow square tube (1) and the back ridge (13) are arranged perpendicular to each other.

9. A building formwork support system according to claim 8 wherein, The wall wooden formwork (12) and the thin-walled hollow square tube (1) are fixedly connected, the wall wooden formwork (12) and the back ridge (13) are detachably connected through a connecting member (14), and the thin-walled hollow square tube (1) and the back ridge (13) are closely arranged.

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