Turnover composite steel-wood keel

Abstract

The utility model relates to a keel and belongs to the technical field of engineering construction, in particular to a turnover composite steel-wood keel which comprises a square timber inner core and a C-shaped steel rib, the square timber inner core comprises a first square timber and a second square timber, and the first square timber and the second square timber are equal in width and thickness. The ends, close to each other, of the first square timber and the second square timber are each provided with a W-shaped child-mother finger connector, and the first square timber and the second square timber are sequentially arranged and lengthened. The C-shaped wood beam is formed by combining the waste wood beam and the C-shaped steel, the advantage that the wood beam is easy to nail is reserved, the advantages that steel is high in flatness and large in bearing capacity are reserved, and meanwhile the phenomenon of random cutting on site can be greatly reduced, so that the loss rate is reduced, the turnover rate is improved, and the C-shaped wood beam serves as an ideal substitute of the wood beam and is worthy of popularization. The waste rate of traditional battens can be reduced, and the problems that in the existing construction process, material resources are difficult to fully utilize, the repeated utilization rate of waste materials is low, and the construction cost cannot be saved are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a turnover composite steel-wood keel. Background Art

[0002] During the construction process, the cost of building construction is huge, and the consumption of funds and resources is even greater; among them, resource consumption is definitely the largest proportion. In addition to the massive consumption of structural solid materials such as steel bars and concrete, the consumption of non-solid turnover materials such as wood and formwork is also amazing. Since the investment in building structural solid materials is necessary, the cost savings are very limited, while non-solid turnover materials can reduce costs through reasonable management methods and advanced substitutes. The most representative non-solid turnover materials are formwork and wood. Among them, wood usually consumes more than thousands of cubic meters in the structural construction of a large project, and even more than tens of thousands of cubic meters in super-large projects. Therefore, it is imperative and urgent to seek a more advanced substitute.

[0003] Steel has the characteristics of good durability, difficulty in cutting and strong turnover. However, its inability to absorb nails and heavy weight limit its application in building formwork support systems. Therefore, a recyclable composite steel-wood keel is proposed to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a turnover composite steel-wood keel, which is composed of waste wood and C-shaped steel. It not only retains the advantage of wood being easy to bear nails, but also retains the advantages of high flatness and large bearing capacity of steel. At the same time, it can greatly reduce the phenomenon of random cutting on site, thereby reducing the loss rate and improving the turnover rate. As an ideal substitute for wood, the utility model can reduce the waste rate of traditional wood.

[0005] The technical solution to achieve the purpose of the utility model is: a rotatable composite steel-wood keel, including a square wood core and a C-shaped steel frame, the square wood core includes a first square wood and a second square wood, the first square wood and the second square wood are equal in width and thickness, and the first square wood and the second square wood are close to each other. The ends are both provided with W-shaped parent-child finger interfaces, and the first square wood and the second square wood are arranged in sequence.

[0006] In some embodiments, a plurality of elliptical nail openings are formed through the inner bottom wall of the C-shaped steel frame, and the plurality of elliptical nail openings are equidistantly distributed.

[0007] In some embodiments, stiffening ribs are provided on both sides of the C-shaped steel frame, and anti-opening teeth are provided at the opening of the C-shaped steel frame.

[0008] Compared with the prior art, the utility model has the following significant advantages:

[0009] First, the utility model can make full use of waste wood and increase the recycling rate of waste materials. Through the joint action of the wood core and the C-shaped steel frame, the recyclable composite steel-wood keel has higher strength and toughness, is not easy to break and deform, and has accurate size; at the same time, it can effectively avoid random cutting on site, reduce the loss rate, facilitate turnover and reduce the overall production cost;

[0010] Second: The utility model is conducive to improving the recycling value of waste wood, reducing the production cost of construction units, reducing the waste of wood resources, saving energy and reducing carbon emissions, and being green and environmentally friendly, helping the construction industry achieve the "dual carbon" goal;

[0011] The invention solves the problems in the existing construction process that material resources are difficult to fully utilize, the reuse rate of waste materials is low, and the construction cost cannot be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the main structure provided in one embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram provided in one embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of a C-shaped steel frame provided in one embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 1. Square wood core; 2. C-shaped steel frame; 3. First square wood; 4. Second square wood; 5. W-shaped parent-child finger joint; 6. Oval nail mouth; 7. Stiffening ribs; 8. Anti-split teeth. DETAILED DESCRIPTION

[0018] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides a turnover composite steel-wood keel through improvement. The technical solution of the utility model is:

[0020] like Figure 1As shown, a recyclable composite steel-wood keel includes a square wood core 1 and a C-shaped steel frame 2. The C-shaped steel frame 2 is made by a cold bending process. The square wood core 1 includes a first square wood 3 and a second square wood 4. The first square wood 3 and the second square wood 4 are of equal width and thickness. The ends of the first square wood 3 and the second square wood 4 close to each other are both provided with W-shaped parent-child finger interfaces 5. Phenolic resin glue is applied to the W-shaped parent-child finger interfaces 5 to assist in fixation. The first square wood 3 and the second square wood 4 are arranged in sequence and extended, and multiple first square woods 3 and second square woods 4 can be connected by extrusion gluing.

[0021] like Figure 2 As shown, in one embodiment, a plurality of elliptical nail openings 6 are formed through the inner bottom wall of the C-shaped steel frame 2. The elliptical nail openings 6 are formed by a stamping process, and the plurality of elliptical nail openings 6 are equidistantly distributed.

[0022] like Figure 3 As shown, in one embodiment, stiffening ribs 7 are provided on both sides of the C-shaped steel frame 2, and the stiffening ribs 7 are concave. Anti-opening teeth 8 are provided at the opening of the C-shaped steel frame 2, and the anti-opening teeth 8 are embedded in the square wood core 1.

[0023] The specific working method is: when the turnover composite steel-wood keel is used, first use an automatic metal detector to detect each wooden square, pick out the wooden square with steel nails, and remove the steel nails one by one to prevent the steel nails from damaging the machinery during subsequent processing, and then use a combing machine to cut W-shaped finger interfaces 5 at both ends of the first and second wooden squares, and then apply special phenolic resin glue to the cut W-shaped finger interfaces 5, and use the pressure of the finger jointer to butt and tighten them to form an extended long wooden square, and then use a four-sided saw to cut the wooden square into the required inner core size, and then produce a specified length of C-shaped steel skeleton 2 according to the inner core size, and finally use a wood plugging machine to plug the inner core of the extended wooden square into the C-shaped steel skeleton 2 to form a finished product, which is packaged and put into storage after inspection.

[0024] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A recyclable composite steel-wood keel, comprising a square wood core (1) and a C-shaped steel frame (2), characterized in that: The square wood inner core (1) comprises a first square wood (3) and a second square wood (4); the first square wood (3) and the second square wood (4) are of equal width and thickness; the ends of the first square wood (3) and the second square wood (4) close to each other are both provided with W-shaped finger joints (5); the first square wood (3) and the second square wood (4) are sequentially arranged and lengthened.

2. The recyclable composite steel-wood keel according to claim 1 is characterized in that: The inner bottom wall of the C-shaped steel frame (2) is penetrated by a plurality of elliptical nail openings (6), and the plurality of elliptical nail openings (6) are evenly distributed.

3. The recyclable composite steel-wood keel according to claim 1 is characterized in that: Stiffening ribs (7) are arranged on both sides of the C-shaped steel frame (2), and anti-opening teeth (8) are arranged at the opening of the C-shaped steel frame (2).

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