Template for road structure layer edge construction

Abstract

A formwork for road structure layer edge construction is characterized by comprising a web plate, fixing rods, steel nails and anti-disengaging pin rods. The web is made of channel steel and serves as a main structure of the formwork, and a hole is formed in the middle and used for penetrating through the nail hole end of the fixing rod. The fixing rods are made of deformed steel bars and are used for ensuring that the web plate cannot move in construction; one end of the fixing rod is provided with a stop lever for preventing the web from moving outwards, and the other end of the fixing rod is provided with a nail hole for wedging a steel nail; the steel nails are wedged into the nail holes to fix the fixing rod on a lower bearing layer of a road structure; the anti-falling pin rod penetrates through the nail hole in the direction parallel to the web plate to be fixed to the road structure lower bearing layer and is used for guaranteeing that the fixing rod is not pulled out due to loosening of the lower bearing layer on the periphery of the fixing part when pulled by the web plate. The device is simple in structure, impact force and outward horizontal pressure received by the formwork in the construction process are resisted through pulling force, jointly formed by the fixing rods, the steel nails and the anti-falling pin rods, on the web, and therefore self-stabilization of the edge formwork of the road structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a template for edge construction of a road structure layer. Background Art

[0002] In the construction process of road projects, cement concrete, various inorganically bonded stabilized aggregates and graded materials are the main raw materials for the base and surface layers, and the paving of these materials usually requires formwork. Although the slipform and railform construction methods have application value in certain specific cases, due to their limited scope of use and high cost, in actual construction, it is more common to support wooden formwork or steel formwork on the edge. In this construction method, the outer side of the formwork is usually reinforced by hammering steel chisels with wooden wedges, or directly using steel bar diagonal braces. However, this formwork reinforcement method has certain problems. It is not only time-consuming and labor-intensive, but also inefficient. In addition, due to poor reinforcement effect, the formwork often bursts, resulting in loose collapse of the edge, thus affecting the strength of the road structure. In addition, due to poor linearity, it may also affect the appearance of the road, which has become a common problem and common disease in road structure construction. Utility Model Content

[0003] The purpose of the utility model is to provide a template for the construction of the edge of the road structure layer, which can resist the impact force and outward horizontal pressure received by the template during the construction process by forming a tension on the web through the fixing rod, steel nails and anti-dropping pin rod, so as to realize the self-stabilization of the template at the edge of the road structure.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a formwork for the edge construction of a road structure layer, characterized in that it includes a web, a fixing rod, a steel nail and an anti-slip pin rod; the web is made of channel steel, serving as the main structure of the formwork, with a hole in the middle for passing the nail hole end of the fixing rod; the fixing rod is made of threaded steel, used to ensure that the web does not move during construction; a baffle is provided at one end of the fixing rod, used to prevent the web from moving outward, and a nail hole is provided at the other end for the steel nail to be wedged in; the steel nail is wedged into the nail hole to fix the fixing rod to the underlying bearing layer of the road structure; the anti-slip pin rod passes through the nail hole parallel to the direction of the web and is fixed to the underlying bearing layer of the road structure, used to ensure that the fixing rod is not pulled out due to the loose underlying bearing layer around the fixed part when the web is pulled.

[0005] The utility model is a template for edge construction of a road structure layer, characterized in that: the horizontal spacing of the web openings is equal, so that the template is evenly stressed; and an anti-skid pad is provided between the web and the lower supporting layer of the road structure to prevent sliding.

[0006] As a template for edge construction of a road structure layer of the utility model, it is characterized in that the size of the middle opening of the web matches the size of the fixing rod nail hole; the fixing rod nail hole is smaller than the diameter of the steel nail cap to ensure fixation.

[0007] The utility model is a template for road structure layer edge construction, characterized in that the nail holes of the fixing rods are long strips, so as to facilitate the adjustment of the angles of the steel nails.

[0008] The utility model provides a template for road structure layer edge construction, which has the following beneficial effects:

[0009] The template used for the construction of the edge of the road structure layer is made of common materials, has a simple template structure, is easy to install and remove, is quick to construct and has low cost, and has a good template fixing effect. After the construction and maintenance of the structure layer is completed, the end of the lever placed on the outside of the template can be cut off with a woodworking chisel or a hand-grinding wheel cutter to easily remove the template, and the remaining part will be permanently retained in the structure layer and will not be recycled. It can effectively save labor and improve work efficiency, and can also reduce the looseness and collapse of the edge of the structure layer under the impact of material dumping and construction machinery load during the construction process, ensuring its molding strength and beautiful linear shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0011] In the figure: 1, belly plate; 2, fixing rod; 201, stop rod; 202, nail hole; 3 steel nails; 4, anti-drop pin rod. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical embodiment.

[0013] See also Figure 1 The utility model provides a technical solution: a template for road structure layer edge construction, comprising:

[0014] In this embodiment: a threaded steel bar with a diameter of 10mm and a length of 50cm is selected to make a fixing rod, and two 4cm long iron bars of the same material are welded at one end as a stopper, with a spacing of 2cm, to ensure that one bar can still function after one bar is damaged during the holding process; a suitable steel nail is selected, and a nail hole is bent at the other end of the fixing rod according to the size of the steel nail cap to wedge the steel nail for fixing, and the size of the nail hole is slightly smaller than the diameter of the steel nail cap; the stopper at one end of the fixing rod and the nail hole at the other end are located in two mutually perpendicular planes to ensure that the stopper is stuck on the outside of the template in the vertical state, and the nail hole is in a horizontal state and can be parallel to the lower bearing layer and fixed by wedge nails. Different types of channel steel can be selected as the web according to the actual design thickness of the structural layer, and a hole is opened in the middle, with a hole width of 15mm, to ensure that the fixing rod with a diameter of 10mm can rotate flexibly within a certain range, and the hole length is 5cm, to ensure that the 4cm stopper end can pass freely, and the hole spacing (i.e. the tension rod arrangement spacing) is arranged according to the actual construction needs. While wedging steel nails into the nail holes to fix the fixing rods to the lower bearing layer, a pin bar should be placed under the nail holes, parallel to the template channel steel. Its material is the same as that of the fixing rod and its length can be 6-8cm, to ensure that the fixing rod will not be pulled out due to the loose lower bearing layer around the fixing part when it is pulled. After the construction and maintenance of the structural layer is completed, the end of the stop rod placed on the outside of the template can be cut off with a woodworking iron chisel or a hand-grinding wheel cutter to easily remove the template, and the remaining part will be permanently retained in the structural layer and will not be recycled.

[0015] Specifically, the horizontal spacing of the web openings is equal, so that the template is evenly stressed; an anti-skid pad is provided between the web and the underlying layer of the road structure to prevent sliding.

[0016] In this embodiment: a rubber pad of corresponding size is cut according to the size of the lower end surface of the web as an anti-skid pad, which is placed between the web and the lower bearing layer of the road structure to prevent sliding.

[0017] Specifically, the size of the opening in the middle of the web matches the size of the nail hole of the fixing rod; the nail hole of the fixing rod is smaller than the diameter of the steel nail cap to ensure fixation.

[0018] In this embodiment: firstly, a suitable steel nail is selected, a fixing rod nail hole is made according to the size of the top cap, and then a hole is opened in the middle of the web according to the fixing rod nail hole.

[0019] Specifically, the nail hole of the fixing rod is in an elongated strip shape, so as to facilitate the adjustment of the angle of the steel nail.

[0020] In this embodiment, the nail hole of the fixing rod is designed to be long and narrow, so as to facilitate the adjustment of the angle at which the steel nail is driven in.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A formwork for road structure layer edge construction, characterized in that: The invention comprises a web (1), a fixing rod (2), a steel nail (3) and an anti-drop pin rod (4); the web (1) is made of channel steel and serves as the main structure of the template. A hole is opened in the middle for passing the nail hole end of the fixing rod (2); the fixing rod (2) is made of threaded steel and is used to ensure that the web (1) does not move during construction; one end of the fixing rod (2) is provided with a blocking rod (201) for preventing the web (1) from moving outward, and the other end is provided with a nail hole (202) for wedging the steel nail (3); the steel nail (3) is wedged into the nail hole (202) to fix the fixing rod (2) to the lower bearing layer of the road structure; the anti-drop pin rod (4) passes through the nail hole (202) parallel to the web direction and is fixed to the lower bearing layer of the road structure, so as to ensure that the fixing rod (2) is not pulled off due to the loose lower bearing layer around the fixing part when the web (1) is pulled.

2. A template for road structure layer edge construction according to claim 1, characterized in that: The openings of the web (1) are opened at equal horizontal intervals, so that the template is evenly stressed; an anti-skid pad is provided between the web (1) and the underlying layer of the road structure to prevent sliding.

3. A template for road structure layer edge construction according to claim 1, characterized in that: The size of the middle opening of the web (1) matches the size of the fixing rod nail hole (202); the fixing rod nail hole (202) is smaller than the cap diameter of the steel nail (3), thereby ensuring fixation.

4. A template for road structure layer edge construction according to claim 1, characterized in that: The nail hole (202) of the fixing rod (2) is in the shape of an elongated strip, so as to facilitate adjustment of the angle of the steel nail (3).

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