Concrete guardrail prefabricated drain hole for slip-form construction

Abstract

The utility model discloses a concrete guardrail prefabricated drain hole for slip-form construction. The concrete guardrail prefabricated drain hole comprises a trapezoidal concrete seat, a mounting hole, a water guide pipe, a steel bar frame and a connecting bar. According to the concrete guardrail prefabricated drainage hole for slip-form construction, the length of a trapezoidal concrete base is matched with the width of the concrete guardrail, a mounting hole is formed in the middle of the trapezoidal concrete base, a water guide pipe matched with the mounting hole is embedded in the mounting hole, and a steel bar frame matched with the trapezoidal concrete base is arranged in the trapezoidal concrete base; connecting ribs are fixedly connected in the steel bar frame, the connecting ribs are fixedly connected with the outer wall of the water guide pipe, the trapezoid concrete base, the water guide pipe and the threaded sleeve are prefabricated into a whole to form a prefabricated drainage hole piece, and transverse strip protrusions are fixedly connected to the four sides of the trapezoid concrete base. And the drainage holes are formed in cooperation with the water guide pipes, so that the drainage holes are directly reserved during slip-form construction of the concrete guardrail, and later drilling is not needed.

Description

Technical Field

[0001] This utility model relates to the field of slipform guardrail construction technology, specifically a prefabricated drainage hole for a concrete guardrail used in slipform construction. Background Technology

[0002] Existing concrete guardrails for roads and bridges are typically constructed using slipform construction. Slipform construction allows for direct shaping of concrete guardrails, resulting in rapid processing. However, in traditional construction methods, drainage holes are drilled after the concrete guardrail is fully formed. This process affects the structure of the concrete guardrail itself and extends the construction period. Furthermore, the concrete guardrail contains a reinforcing cage, and drilling poses a risk of hitting the reinforcing steel. Therefore, this paper proposes a method for prefabricating drainage holes in concrete guardrails using slipform construction to optimize existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a prefabricated drainage hole for concrete guardrails used in slipform construction, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A prefabricated drainage hole for a concrete guardrail used in slipform construction includes a trapezoidal concrete seat, the length of which is adapted to the width of the concrete guardrail. An installation hole is provided in the middle of the trapezoidal concrete seat, and a water guide pipe adapted to it is embedded in the installation hole. A steel frame adapted to it is provided inside the trapezoidal concrete seat, and a connecting bar is fixedly connected inside the steel frame. The connecting bar is fixedly connected to the outer wall of the water guide pipe. The trapezoidal concrete seat, the water guide pipe and the threaded sleeve are prefabricated as a whole to form a prefabricated drainage hole component.

[0006] As a further embodiment of this utility model: the trapezoidal concrete base has horizontal protrusions fixedly connected to all four sides.

[0007] As a further improvement of this utility model: a threaded sleeve is vertically and fixedly connected to the trapezoidal concrete seat, and the threaded sleeve is fixedly connected to the connecting bar and the steel frame.

[0008] As a further improvement of this utility model: the threaded sleeve is internally threaded with a matching bolt, the hexagonal head of the bolt facing downwards, the hexagonal head acting as a pad to form a stable support.

[0009] As a further improvement of this utility model: the bolt is provided with a relief groove, and the relief groove is provided with a scale line. The length of the bolt protruding from the threaded sleeve can be easily observed by setting the scale line.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention uses a trapezoidal concrete base pre-placed at the bottom of the slipform construction concrete guardrail, which, together with a water pipe, forms a drainage hole, thus directly leaving a drainage hole during the slipform construction of the concrete guardrail without the need for subsequent drilling.

[0012] This invention creates a rough surface by setting horizontal protrusions, thereby ensuring a firm connection between the trapezoidal concrete base and the concrete railing.

[0013] This utility model controls the bolt's extension from the threaded sleeve by tightening the bolt, and controls the bolt's extension distance by using a scale line. This allows control over the height of the water pipe, preventing a mismatch between the road surface paving height and the water pipe height on the trapezoidal concrete base after slipform construction of the concrete guardrail. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a prefabricated drainage hole structure for a concrete guardrail used in slipform construction.

[0015] Figure 2 An internal view of a prefabricated drainage hole in a concrete guardrail used in slipform construction.

[0016] Figure 3 This is a diagram illustrating bolts in prefabricated drainage holes of a concrete guardrail used in slipform construction.

[0017] In the diagram: 1. Trapezoidal concrete seat; 2. Mounting hole; 3. Water pipe; 4. Steel frame; 5. Connecting bar; 6. Protrusion; 7. Threaded sleeve; 8. Bolt; 9. Clearance groove; 10. Scale line. Detailed Implementation

[0018] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3In this embodiment of the present invention, a prefabricated drainage hole for a concrete guardrail used in slipform construction includes a trapezoidal concrete seat 1. The length of the trapezoidal concrete seat 1 is adapted to the width of the concrete guardrail. An installation hole 2 is provided in the middle of the trapezoidal concrete seat 1. A water guide pipe 3 adapted to the installation hole 2 is embedded in the installation hole 2. A steel frame 4 adapted to the installation hole 1 is provided in the trapezoidal concrete seat 1. A connecting bar 5 is fixedly connected in the steel frame 4. The connecting bar 5 is fixedly connected to the outer wall of the water guide pipe 3. The trapezoidal concrete seat, the water guide pipe 3 and the threaded sleeve 7 are prefabricated as a whole to form a prefabricated drainage hole component.

[0020] By pre-placing a trapezoidal concrete seat at the bottom of the slipform construction concrete guardrail and forming a drainage hole with the water pipe 3, the drainage hole can be directly left during the slipform construction of the concrete guardrail without the need for subsequent drilling.

[0021] The trapezoidal concrete base 1 has horizontal protrusions 6 fixedly connected to all four sides.

[0022] The rough surface is formed by the horizontal protrusions 6, which makes the concrete connection between the trapezoidal concrete base and the concrete railing more secure.

[0023] A threaded sleeve 7 is vertically and fixedly connected to the trapezoidal concrete seat 1, and the threaded sleeve 7 is fixedly connected to the connecting bar 5 and the steel frame 4.

[0024] The threaded sleeve 7 has an internal threaded connection with a matching bolt 8. The hexagonal head of the bolt 8 faces downward and acts as a pad to form a stable support.

[0025] The bolt 8 has a relief groove 9, and the relief groove 9 has a scale line 10. The length of the bolt 8 protruding from the threaded sleeve 7 can be easily observed by setting the scale line 10.

[0026] By tightening the bolt 8 and engaging the threaded sleeve 7, the bolt 8 can be controlled to extend beyond the threaded sleeve 7. The distance the bolt 8 extends can be controlled by engaging the scale line 10, thereby controlling the height of the water pipe 3. This prevents the height of the road surface paving after the slipform construction of the concrete guardrail from being mismatched with the height of the water pipe 3 on the trapezoidal concrete seat.

[0027] The working principle of this utility model is as follows:

[0028] When in use, for road construction where the height of the road surface paving is compatible with that of the water pipe 3, the drainage hole is positioned at the location of the concrete guardrail in the slipform construction, concrete is placed at the positioning point, and then the trapezoidal concrete seat 1 is placed on the concrete, so that the trapezoidal concrete seat 1 is connected to the ground through the concrete, and the slipform concrete guardrail construction can then be carried out.

[0029] For concrete guardrails constructed using slipform construction with a thicker pavement, bolt 8 is screwed into threaded sleeve 7. At this time, the distance between the head of bolt 8 and trapezoidal concrete seat 1 is controlled by the scale line 10, thus controlling the placement height of trapezoidal concrete seat 1. Drainage holes are positioned at the location of the slipform concrete guardrail, concrete is placed at the positioning point, and then trapezoidal concrete seat 1 is placed on the concrete. Bolt 8 is inserted into the pre-placed concrete, so that trapezoidal concrete seat 1 is connected to the ground as one unit through the concrete. At this time, slipform concrete guardrail construction can be carried out.

[0030] After construction, the concrete guardrail will have a drainage hole directly through the water pipe 3, eliminating the need for subsequent drilling.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated drain hole for concrete parapets for slip-form construction, comprising a trapezoidal concrete seat (1), characterised in that: The length of the trapezoidal concrete seat (1) is matched with the width of the concrete guardrail, a mounting hole (2) is arranged in the middle of the trapezoidal concrete seat (1), a water guide pipe (3) matched with the mounting hole (2) is embedded in the mounting hole (2), a steel frame (4) matched with the trapezoidal concrete seat (1) is arranged in the trapezoidal concrete seat (1), a connecting rib (5) is fixedly connected in the steel frame (4), and the connecting rib (5) is fixedly connected with the outer wall of the water guide pipe (3).

2. A precast weep hole for a concrete barrier for slipform construction according to claim 1, characterized in that: The four sides of the trapezoidal concrete seat (1) are fixedly connected with horizontal strip protrusions (6).

3. A precast weep hole for a concrete barrier for slipform construction according to claim 1, wherein: A threaded sleeve (7) is fixedly connected on the trapezoidal concrete seat (1) in a vertical penetrating mode, and the threaded sleeve (7) is fixedly connected on the connecting rib (5) and the steel frame (4).

4. A precast weep hole for a concrete barrier for slipform construction according to claim 3, wherein: A bolt (8) matched with the threaded sleeve (7) is threadedly connected in the threaded sleeve (7), and the hexagonal head of the bolt (8) is downward.

5. A precast weep hole for a concrete barrier for slipform construction according to claim 4, wherein: An avoiding groove (9) is arranged on the bolt (8), and a scale line (10) is arranged in the avoiding groove (9).

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