Rapid and accurate positioning device for large-span prefabricated T-beam multi-layer prestressed pipeline

Abstract

The utility model relates to a quick and accurate positioning device for a large-span prefabricated T-beam multi-layer prestressed pipeline, belongs to the technical field of prestressed construction, and particularly relates to a quick and accurate positioning device for a large-span prefabricated T-beam multi-layer prestressed pipeline, which comprises a square steel pipe. Level bubbles are fixedly installed on the periphery of the square steel pipe, the bottom end of the square steel pipe is fixedly connected with a bottom magnet, and the bottom end of the bottom magnet is fixedly connected with a T-beam pedestal. According to the utility model, the effect of accurate measurement and positioning is achieved, and the problems that for a large-span prefabricated T beam, prestressed pipelines are long in length and large in number arrangement, deviation is easy to occur, and rapid and accurate positioning of multi-layer prestressed pipelines cannot be realized are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed construction, in particular to a device for quickly and accurately positioning a large-span prefabricated T-beam multi-layer prestressed pipeline. Background Art

[0002] With the rapid development of national infrastructure, the use of large-span precast T-beams in bridge engineering is becoming increasingly common. To improve the flexural and tensile performance of precast T-beams and reduce concrete cracking during construction and use, multiple layers of longitudinal prestressed tendons are typically used for these large-span T-beams. To ensure that the prestressed tendons meet design requirements during use, strict control over their installation and tensioning is required during construction.

[0003] After inspection, the Chinese patent publication number CN215976852U discloses that the utility model discloses a device for positioning a prestressed pipe, including a ruler, which can be telescopically extended, and a first long adjustment hole is opened in the middle of the ruler in the length direction, and a horizontal auxiliary ruler that can be slid and adjusted along the first adjustment hole is provided at the end of the ruler with the scale, and the bottom end of the ruler is hinged with a base that can be folded at the side end of the ruler; a support rod is rotatably connected to the base, and the other end of the support rod is connected to the positioning plate at the side end of the ruler through a detachable positioning member.

[0004] Based on the above search and combined with existing technology findings;

[0005] The above-mentioned search patents are mostly applicable to T-beams with small spans and a small number of prestressed tendons. However, for large-span prefabricated T-beams, the prestressed pipes are long and arranged in large numbers, which are prone to deviations. It is impossible to achieve rapid and accurate positioning of multi-layer prestressed pipes, so there are certain limitations. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a device for quickly and accurately positioning multi-layer prestressed pipes of large-span prefabricated T-beams, which can realize fast and accurate positioning of multi-layer prestressed pipes when the prestressed pipes are long and arranged in large numbers and are not prone to deviation.

[0007] The technical solution for achieving the purpose of the utility model is: a large-span prefabricated T-beam multi-layer prestressed pipeline rapid and precise positioning device, comprising a square steel pipe, with level bubbles fixedly installed on all four sides of the square steel pipe, the bottom end of the square steel pipe fixedly connected to a bottom magnet, and the bottom end of the bottom magnet fixedly connected to a T-beam base.

[0008] Preferably, vertical scale marks and vertical key scale points are provided on the surface of the square steel tube near the middle position.

[0009] Preferably, a plurality of vertical labels are fixedly passed through the outer peripheral wall of the square steel tube near the top, and a protective cover is fixedly installed on the top of the square steel tube.

[0010] Preferably, an annular steel pipe sleeve is slidably mounted on the surface of the square steel pipe, a fixed magnet is fixedly mounted on one side of the annular steel pipe sleeve, and a laser pen is fixedly mounted on the other side of the annular steel pipe sleeve.

[0011] Preferably, a T-beam bottom mold is fixedly installed on the surface of the T-beam pedestal, and the surface of the T-beam bottom mold is provided with pedestal scale marks and pedestal key scale points.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] Firstly, the utility model utilizes the multi-faceted scale performance of a self-made three-dimensional scale ruler, combines it with the scale positioning of the T-beam pedestal, and adopts a laser positioning and comparison method to quickly complete the precise positioning of multi-layer T-beam prestressed pipes in one go. In addition, compared with traditional methods, the positioning of prestressed pipes does not need to be compared one by one with specific data, but can be directly compared with the scale surface markings. This makes the positioning control of prestressed pipes more visual and avoids the complexity caused by the complexity of data.

[0014] Secondly: The utility model is fixed to the bottom mold of the pedestal by magnetic attraction of the magnet at the bottom of the three-dimensional scale, which is convenient for operators to compare and inspect, avoiding measurement errors during inspection, and facilitating supervision and inspection by management personnel, greatly improving the control accuracy of prestressed pipes. Through the application of this invention, the difficulty of quality control for management personnel is greatly reduced, the quality qualification rate of large-span T-beam prefabrication construction is improved, and money and construction time are saved.

[0015] The present invention solves the problem that the above-mentioned existing search patents are mostly applicable to T-beams with small spans and a small number of prestressed tendons, but for prefabricated T-beams with large spans, the prestressed pipes are long and arranged in large numbers, which are prone to deviations and cannot achieve fast and accurate positioning of multi-layer prestressed pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the overall first-perspective structure provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the overall top view structure provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the overall side structure provided by the utility model;

[0020] Figure 4It is a schematic diagram of the three-dimensional structure of a square steel pipe provided by the utility model.

[0021] Description of reference numerals:

[0022] 1. Square steel pipe; 2. Level bubble; 3. Vertical label; 4. Protective cover; 5. Annular steel pipe sleeve; 6. Fixed magnet; 7. Laser pointer; 8. Vertical scale mark; 9. Vertical key scale point; 10. Bottom magnet; 11. T-beam pedestal; 12. T-beam bottom mold; 13. Pedestal key scale point; 14. Pedestal scale mark. DETAILED DESCRIPTION

[0023] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a device for quickly and accurately positioning multi-layer prestressed pipes of large-span prefabricated T-beams through improvement. The technical solution of the utility model is:

[0025] like Figure 1-4 As shown, a large-span prefabricated T-beam multi-layer prestressed pipeline rapid and precise positioning device includes a square steel tube 1. Level bubbles 2 are fixedly installed on all four sides of the square steel tube 1. The bottom end of the square steel tube 1 is fixedly connected to a bottom magnet 10. The bottom end of the bottom magnet 10 is fixedly connected to a T-beam pedestal 11. The bottom magnet 10 of the three-dimensional scale is magnetically fixed to the bottom mold of the pedestal, which is convenient for operators to compare and check, avoids measurement errors during inspection, and improves measurement accuracy.

[0026] Furthermore, a vertical scale mark 8 and a vertical key scale point 9 are provided on the surface of the square steel pipe 1 near the middle position, so as to facilitate the positioning of the prestressed pipe at the scale position.

[0027] Furthermore, a plurality of vertical labels 3 are fixedly passed through the outer peripheral wall near the top of the square steel pipe 1, and a protective cover 4 is fixedly installed on the top of the square steel pipe 1. The vertical labels 3 help to accurately locate the prestressed pipe and facilitate the subsequent marking of the laser pen 7.

[0028] Furthermore, an annular steel pipe sleeve 5 is slidably installed on the surface of the square steel pipe 1, a fixed magnet 6 is fixedly installed on one side of the annular steel pipe sleeve 5, and a laser pen 7 is fixedly installed on the other side of the annular steel pipe sleeve 5. The laser pen 7 is used for comparison to achieve visual and precise positioning of large-span T-beam multi-layer prestressed pipelines.

[0029] Furthermore, a T-beam bottom mold 12 is fixedly installed on the surface of the T-beam pedestal 11, and the surface of the T-beam bottom mold 12 is provided with a pedestal scale mark 14 and a pedestal key scale point 13, which reduces the error, ensures the measurement accuracy, and improves the authenticity and practicality.

[0030] The specific working method is: when using, starting from the first section of the T-beam, vertically adsorb the three-dimensional scale ruler to the T-beam pedestal 11 scale "20", with the front of the scale ruler facing outward, observe the horizontal bubbles 2 in two adjacent directions, ensure that the scale ruler is horizontal and vertical, move the laser pen 7 to the pedestal scale mark 14 scale "20", turn on the laser switch, compare with the front of the prestressed pipe, adjust the front facade label 3 so that the midpoint of the prestressed pipe coincides with the laser point and fix it, after the comparison is completed, rotate the scale ruler 90°, compare the right scale "20" with the right side of the prestressed pipe, and then use the same method to complete the comparison of the left and back sides of the prestressed pipe. After completing the comparison of the beam end pedestal scale "20", you can move the three-dimensional scale ruler forward to the next scale position of the pedestal to locate the prestressed pipe at that scale position, and then use this method in sequence to complete the positioning of the prestressed pipe at the required position.

[0031] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A device for quickly and accurately positioning a multi-layer prestressed pipe for a large-span prefabricated T-beam, comprising a square steel pipe (1), characterized in that: Level bubbles (2) are fixedly installed around the four sides of the square steel tube (1), the bottom end of the square steel tube (1) is fixedly connected to a bottom magnet (10), the bottom end of the bottom magnet (10) is fixedly connected to a T-beam pedestal (11), a vertical scale mark (8) and a vertical key scale point (9) are provided on the surface of the square steel tube (1) near the middle position, a plurality of vertical labels (3) are fixedly passed through the outer peripheral wall of the square steel tube (1) near the top, and a protective cover (4) is fixedly installed on the top of the square steel tube (1).

2. The device for quickly and accurately positioning multi-layer prestressed pipes for large-span prefabricated T-beams according to claim 1 is characterized in that: An annular steel pipe sleeve (5) is slidably mounted on the surface of the square steel pipe (1), a fixed magnet (6) is fixedly mounted on one side of the annular steel pipe sleeve (5), and a laser pen (7) is fixedly mounted on the other side of the annular steel pipe sleeve (5).

3. The device for quickly and accurately positioning multi-layer prestressed pipes for large-span prefabricated T-beams according to claim 1 is characterized in that: A T-beam bottom mold (12) is fixedly mounted on the surface of the T-beam pedestal (11), and a pedestal scale mark (14) and a pedestal key scale point (13) are provided on the surface of the T-beam bottom mold (12).

Images