Assembly type box culvert side wall pull rod hole pouring plug

Abstract

The utility model provides a kind of assembly box culvert side wall pull rod hole pouring plug, effectively solve the problem that big bubble is prone to appear on the upper end of hole bottom when traditional technology carries out grouting to pull rod hole;Its technical scheme to solve is, including vertical round plate, round plate left end has cylinder, and the outer circular surface of cylinder is provided with threaded structure;Horizontal grouting pipe is in the lower end of cylinder cavity, grouting pipe right end penetrates round plate and is placed in round plate right side, long exhaust pipe is in the upper end of cylinder cavity, long exhaust pipe left end extends to left upper side obliquely, long exhaust pipe right end penetrates round plate and is tilted upwards, short exhaust pipe is set on round plate upper end, and short exhaust pipe right end is placed in round plate right side;The utility model structure is ingenious, can exhaust simultaneously while grouting, and the gas gathered on the upper end of hole bottom can also be discharged in time, eliminate the big bubble of pull rod hole bottom upper end, conducive to improve the sealing waterproof performance of entire box culvert.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated box culvert technology, and in particular to a grouting plug for the tie rod hole on the side wall of a prefabricated box culvert. Background Technology

[0002] Prefabricated box culverts, especially those assembled vertically, require sealing the tie rod holes on the outer wall after assembly. Current technology uses special cement for filling, but this has significant drawbacks. Due to the inability to effectively vibrate the cement, the internal void rate is high, severely affecting the overall sealing performance. Therefore, some construction teams use grouting for sealing. However, because the tie rod holes are blind holes, air tends to accumulate at the upper part and cannot escape, causing large air bubbles to form at the bottom of the tie rod holes after grouting, though these are not visible from the outside. Currently, there is no better method in the industry to eliminate or reduce air bubbles at the bottom of the tie rod holes.

[0003] To address the issue of marketability, a prefabricated box culvert sidewall tie rod hole injection plug is provided. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a prefabricated box culvert sidewall tie rod hole grouting plug, which effectively solves the problem of large air bubbles easily appearing at the top of the hole when grouting tie rod holes in traditional technology.

[0005] The technical solution includes a vertical circular plate with a cylinder at the left end. The outer surface of the cylinder is threaded. A horizontal grouting pipe is located at the lower end of the cylinder cavity. The right end of the grouting pipe passes through the circular plate and is positioned on the right side of the circular plate. A long exhaust pipe is located at the upper end of the cylinder cavity. The left end of the long exhaust pipe extends obliquely upward to the left, and the right end of the long exhaust pipe passes through the circular plate and curves upward. A short exhaust pipe is located at the upper end of the circular plate, and the right end of the short exhaust pipe is positioned on the right side of the circular plate.

[0006] Furthermore, the cylinder is a cone shape with a diameter at the left end smaller than that at the right end.

[0007] Furthermore, a sleeve is fixed to the middle of the right end of the circular plate, and a pry bar is inserted into the sleeve to achieve the purpose of saving effort by utilizing the lever principle.

[0008] This utility model has a clever structure that can vent air while grouting, and can also release the gas accumulated at the bottom of the hole in a timely manner, eliminating large air bubbles at the bottom of the tie rod hole and improving the sealing and waterproof performance of the entire box culvert. Attached Figure Description

[0009] Figure 1 This is a perspective view of the present utility model.

[0010] Figure 2 This is the front view of the present utility model.

[0011] Figure 3 This is the front sectional view of the present invention.

[0012] Figure 4 This is a schematic diagram of the utility model in use. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Depend on Figures 1 to 4 The present invention includes a vertical circular plate 1, a cylindrical tube 2 at the left end of the circular plate 1, and a threaded structure on the outer surface of the cylindrical tube 2; a horizontal grouting pipe 3 at the lower end of the cavity of the cylindrical tube 2, the right end of the grouting pipe 3 penetrating the circular plate 1 and placed on the right side of the circular plate 1; a long exhaust pipe 4 at the upper end of the cavity of the cylindrical tube 2, the left end of the long exhaust pipe 4 extending obliquely upward to the left, the right end of the long exhaust pipe 4 penetrating the circular plate 1 and curving upward; a short exhaust pipe 5 at the upper end of the circular plate 1, the right end of the short exhaust pipe 5 placed on the right side of the circular plate 1.

[0015] To facilitate screwing and ensure a tight fit between the cylinder 2 and the side wall of the pull rod hole, the cylinder 2 is tapered with a diameter at the left end smaller than that at the right end.

[0016] To facilitate turning and save effort, a sleeve 6 is fixed to the middle of the right end of the circular plate 1. A pry bar is inserted into the sleeve 6, which can achieve the purpose of saving effort by utilizing the lever principle.

[0017] It is worth noting that in this scheme, the left end of the long vent hole is placed at the bottom upper corner of the tie rod hole. During grouting, if the grout causes some air to accumulate at the bottom upper end of the tie rod hole, the air can be discharged through the long vent pipe 4 to ensure the grouting quality.

[0018] When using, such as Figure 4 As shown, after screwing the circular plate 1 into the tie rod hole, the threaded structure ensures that the circular plate 1 fits tightly with the tie rod hole opening to form a seal. Grouting is performed through the grouting pipe 3. As the grout increases, the air in the tie rod hole is discharged upwards through the short vent pipe 5 and the long vent pipe 4 simultaneously. If air accumulates at the bottom of the hole, as the grout increases, the accumulated air is discharged through the long vent pipe 4, and the air at the hole opening is discharged through the short vent pipe 5. In this way, it can be ensured that the air in the tie rod hole is completely discharged. Finally, when grout flows out from both the long vent pipe 4 and the short vent pipe 5, the long vent pipe 4 and the short vent pipe 5 are sealed and left to solidify.

[0019] This utility model has a clever structure that can vent air while grouting, and can also release the gas accumulated at the bottom of the hole in a timely manner, eliminating large air bubbles at the bottom of the tie rod hole and improving the sealing and waterproof performance of the entire box culvert.

Claims

1. A prefabricated box culvert sidewall tie rod hole grouting plug, characterized in that, It includes a vertical circular plate (1), a cylinder (2) at the left end of the circular plate (1), and a threaded structure on the outer surface of the cylinder (2); a horizontal grouting pipe (3) at the lower end of the cavity of the cylinder (2), the right end of the grouting pipe (3) passes through the circular plate (1) and is placed on the right side of the circular plate (1); a long exhaust pipe (4) at the upper end of the cavity of the cylinder (2), the left end of the long exhaust pipe (4) extends to the upper left, the right end of the long exhaust pipe (4) passes through the circular plate (1) and curves upward; a short exhaust pipe (5) is set at the upper end of the circular plate (1), and the right end of the short exhaust pipe (5) is placed on the right side of the circular plate (1).

2. The prefabricated box culvert sidewall tie rod hole grouting plug according to claim 1, characterized in that, The cylinder (2) is a cone with a diameter at the left end smaller than that at the right end.

3. A prefabricated box culvert sidewall tie rod hole grouting plug according to claim 1 or 2, characterized in that, A sleeve (6) is fixed at the middle of the right end of the circular plate (1).

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