Grouting hole reservation positioning device

Abstract

The utility model belongs to the technical field of spherical steel support assembly, disclose a kind of grouting hole reservation positioning device, including round steel pipe, round steel pipe is vertically embedded in concrete column and cushion stone;Adjustable connecting assembly, adjustable connecting assembly includes first connecting angle steel, second connecting angle steel and fastener, first connecting angle steel and second connecting angle steel are connected adjacent round steel pipe by fastener, and the spacing of adjustable adjacent round steel pipe;For welding or binding fixed fixed reinforcing bar with the reinforcing steel in concrete column, fixed reinforcing bar is located on the outer wall of round steel pipe, round steel pipe is four, and it is rectangular array distribution, the inner diameter of round steel pipe is matched with anchor diameter, round steel pipe uses Q235B seamless steel tube, and round steel pipe surface is coated with rust-proof coating, a plurality of first bolt holes are set on first connecting angle steel.The utility model not only can satisfy project shortening construction period, can be used in rotation, also has the advantages of low cost, energy saving and emission reduction, and high installation precision.

Description

Technical Field

[0001] This utility model relates to the field of spherical steel support assembly technology, and in particular to a grouting hole pre-positioning device. Background Technology

[0002] Spherical steel bearings are commonly used as structural force transmission components in bridge and building construction. The spherical steel bearing and its substructure are constructed of concrete, concrete pad, and spherical steel bearing, respectively. The lower anchor bolts of the spherical steel bearing need to be inserted into the pre-reserved holes in the concrete pad and concrete column, and the holes need to be filled with epoxy mortar.

[0003] Based on the above structural characteristics, it is necessary to leave holes in the concrete columns and foundation stones. The commonly used methods are as follows: 1) Before pouring concrete, PVC pipes or foam are used to pre-reserve holes, which are then removed after the concrete is poured. However, during the concrete pouring and vibration process, PVC pipes and foam, due to their light density and inability to be fixed, may float or shift, resulting in poor accuracy and insufficient depth of the pre-reserved holes. Furthermore, PVC pipes and foam cannot be completely removed and must be destroyed before removal, making them unusable.

[0004] 2) No holes are reserved before concrete pouring. Holes are chiseled out after pouring using pneumatic picks, drill bits, etc. However, chiseling is inefficient, polluting, and inaccurate. It can also easily damage the foundation stone structure, and workers need to work at height for a long time.

[0005] In summary, the two common methods for reserving grouting holes for anchor bolts under spherical steel supports are no longer sufficient to meet the requirements of high project schedule, minimal on-site wet work, low cost, and minimal ecological impact. Therefore, we propose a grouting hole reservation and positioning device. Utility Model Content

[0006] In view of the fact that the two existing common methods for reserving grouting holes for anchor bolts under spherical steel supports are no longer sufficient to meet the requirements of high project schedule, minimal on-site wet work, low cost and minimal ecological impact, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A grouting hole pre-positioning device includes a round steel pipe for forming a grouting channel, the round steel pipe being vertically pre-embedded in a concrete column and a pad stone; An adjustable connecting assembly includes a first connecting angle steel, a second connecting angle steel, and fasteners. The first connecting angle steel and the second connecting angle steel are connected to adjacent round steel pipes through the fasteners, and the spacing between adjacent round steel pipes is adjustable. The fixing reinforcement is used for welding or binding to the steel bars inside the concrete column, and the fixing reinforcement is located on the outer wall of the round steel pipe.

[0008] As a technical solution of the grouting hole pre-positioning device of this utility model, there are four round steel pipes arranged in a rectangular array, and the inner diameter of the round steel pipes matches the diameter of the anchor bolt.

[0009] As a technical solution of the grouting hole pre-positioning device of this utility model, the round steel pipe is made of Q235B seamless steel pipe, and the surface of the round steel pipe is coated with an anti-rust coating.

[0010] As a technical solution of the grouting hole pre-positioning device of this utility model, wherein: a plurality of first bolt holes are provided on the first connecting angle steel, and the plurality of first bolt holes are equidistantly arranged along the length direction of the first connecting angle steel; The second connecting angle steel has a plurality of second bolt holes, and the plurality of second bolt holes are equidistantly arranged along the length direction of the second connecting angle steel. The first connecting angle steel and the second connecting angle steel are connected through the first bolt holes, the second bolt holes and the fasteners.

[0011] As a technical solution of the grouting hole pre-positioning device of this utility model, the fastener includes a bolt that is adapted to both the first bolt hole and the second bolt hole and a nut that is threadedly connected to the bolt.

[0012] As a technical solution of the grouting hole pre-positioning device of this utility model, the fixing reinforcing bar is arranged in an inverted L-shape, and the end of the fixing reinforcing bar away from the round steel pipe extends to the main concrete reinforcement and is welded and fixed.

[0013] As a technical solution of the grouting hole pre-positioning device of this utility model, the device is a detachable structure as a whole, and can be completely removed and reused by loosening the fasteners after the concrete has set.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through the synergistic effect of vertically pre-embedded round steel pipes, adjustable connecting components and inverted L-shaped fixed reinforcing bars, ensures zero positional deviation of the grouting hole during concrete pouring and can resist construction vibration and concrete lateral pressure, which can greatly improve the quality of hole formation. This can meet the advantages of shortening the project construction period, low cost and high installation accuracy.

[0015] 2. This utility model adopts a detachable design and standardized fasteners, enabling the device to be recycled multiple times, reducing material waste. At the same time, the combination of seamless steel pipe and anti-rust coating balances durability and maintenance costs, which is in line with the concept of green construction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Round steel pipe; 2. First connecting angle steel; 201. First bolt hole; 3. Second connecting angle steel; 301. Second bolt hole; 4. Bolt; 5. Nut; 6. Fixing reinforcing bar. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-3 A grouting hole pre-positioning device is provided, which includes a round steel pipe 1 for forming a grouting channel. The round steel pipe 1 is vertically embedded in the concrete column and the pad stone to ensure the accurate position of the grouting channel and avoid deviation during concrete pouring. The adjustable connection assembly includes a first connecting angle steel 2, a second connecting angle steel 3, and fasteners. The first connecting angle steel 2 and the second connecting angle steel 3 are connected to adjacent round steel pipes 1 by fasteners, and the spacing between adjacent round steel pipes 1 can be adjusted. The spacing between adjacent round steel pipes 1 can be flexibly adjusted by angle steel and fasteners to adapt to pad stones or column structures of different sizes. The fixing reinforcement 6 is used for welding or binding with the steel bars inside the concrete column. The fixing reinforcement 6 is located on the outer wall of the round steel pipe 1 to enhance the connection stability between the round steel pipe 1 and the main concrete reinforcement and prevent displacement during the pouring process.

[0022] Reference Figure 1 and Figure 2 There are four round steel pipes 1 arranged in a rectangular array. The inner diameter of the round steel pipe 1 matches the diameter of the anchor bolt. The rectangular arrangement of the four round steel pipes 1 can evenly distribute the load and improve the stability of the overall structure. At the same time, the matching of the inner diameter with the diameter of the anchor bolt can ensure that the grouting hole and the anchor bolt are accurately connected, reducing the need for subsequent adjustment procedures.

[0023] Reference Figure 1 and Figure 2 The round steel pipe 1 is made of Q235B seamless steel pipe, and the surface of the round steel pipe 1 is coated with an anti-rust coating. The Q235B seamless steel pipe can resist the deformation of concrete extrusion and ensure the integrity of the duct shape. The anti-rust coating can extend the service life of the round steel pipe 1 and prevent rust from affecting the grouting quality.

[0024] Reference Figure 2 and Figure 3 The first connecting angle steel 2 has a plurality of first bolt holes 201, and the plurality of first bolt holes 201 are equidistantly arranged along the length direction of the first connecting angle steel 2. The second connecting angle steel 3 has several second bolt holes 301, and the several second bolt holes 301 are equidistantly arranged along the length direction of the second connecting angle steel 3. The first connecting angle steel 2 and the second connecting angle steel 3 are connected by the first bolt holes 201, the second bolt holes 301 and fasteners. The equidistant bolt hole design can provide multiple adjustment points and realize fine control of the spacing.

[0025] Reference Figure 2 and Figure 3 The fasteners include bolts 4 that are adapted to both the first bolt hole 201 and the second bolt hole 301, and nuts 5 that are threadedly connected to bolts 4. Bolts 4 and nuts 5 are easy to install and remove, and are also easy to reuse.

[0026] Reference Figure 1 and Figure 2 The fixed reinforcing bars 6 are arranged in an inverted L-shape. The end of the fixed reinforcing bars 6 away from the round steel pipe 1 extends to the main concrete reinforcement and is welded and fixed. The inverted L-shaped fixed reinforcing bars 6 can expand the contact area with the main reinforcement. After welding, a rigid connection is formed, which has a better anti-displacement effect.

[0027] Reference Figures 1-3 The device has a detachable structure. After the concrete has set, it can be completely dismantled and reused by loosening the fasteners. The detachable structure allows for the reuse of dismantled parts after the concrete has set, which can significantly reduce material costs.

[0028] The working principle of this utility model is as follows: First, after the concrete column reinforcement and formwork are completed, the device is pre-embedded in place. At this time, the fixing reinforcement 6 is welded and fixed to the main reinforcement in the concrete column, and lubricating oil is applied to the outer surface of the round steel pipe 1. Then, pour the concrete for the columns and foundation stones, and wait for the concrete to solidify; Secondly, cut the fixing steel bar 6 along the concrete surface of the column, pull out the device, and reuse it. Finally, install the spherical steel support, and then inject grout into the reserved holes until the construction is completed.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A grouting hole pre-positioning device, characterized in that: include: A round steel pipe (1) is used to form grouting channels, the round steel pipe (1) being vertically embedded in the concrete column and the pad stone; An adjustable connection assembly includes a first connecting angle steel (2), a second connecting angle steel (3), and fasteners. The first connecting angle steel (2) and the second connecting angle steel (3) are connected to adjacent round steel pipes (1) through the fasteners, and the spacing between adjacent round steel pipes (1) is adjustable. The fixing steel bar (6) is used for welding or binding with the steel bars inside the concrete column, and the fixing steel bar (6) is located on the outer wall of the round steel pipe (1).

2. The grouting hole pre-positioning device according to claim 1, characterized in that: There are four round steel pipes (1) arranged in a rectangular array. The inner diameter of the round steel pipes (1) matches the diameter of the anchor bolts.

3. The grouting hole pre-positioning device according to claim 2, characterized in that: The round steel pipe (1) is made of Q235B seamless steel pipe, and the surface of the round steel pipe (1) is coated with an anti-rust coating.

4. The grouting hole pre-positioning device according to claim 1, characterized in that: The first connecting angle steel (2) is provided with a plurality of first bolt holes (201), and the plurality of first bolt holes (201) are equidistantly arranged along the length direction of the first connecting angle steel (2); The second connecting angle steel (3) has a plurality of second bolt holes (301) and the plurality of second bolt holes (301) are equidistantly arranged along the length direction of the second connecting angle steel (3). The first connecting angle steel (2) and the second connecting angle steel (3) are connected through the first bolt holes (201), the second bolt holes (301) and the fasteners.

5. The grouting hole pre-positioning device according to claim 4, characterized in that: The fastener includes a bolt (4) that is adapted to both the first bolt hole (201) and the second bolt hole (301) and a nut (5) that is threadedly connected to the bolt (4).

6. The grouting hole pre-positioning device according to claim 1, characterized in that: The fixed reinforcing bars (6) are arranged in an inverted L-shape, and one end of the fixed reinforcing bars (6) away from the round steel pipe (1) extends to the main concrete reinforcement and is welded and fixed.

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