Steel bar positioning tool

Abstract

The utility model discloses a steel bar positioning tool, and belongs to the field of bridge engineering. Comprising a fixed seat, a plurality of positioning sleeves which are distributed on the fixed seat in a preset shape, and a plurality of positioning bolts which are uniformly distributed in the circumferential direction of the positioning sleeves. According to the utility model, the steel bars inserted into the positioning cylinders are contacted and restrained in all directions through the plurality of positioning bolts. The multi-point positioning mode can more effectively counteract tiny deviation of form bending of the reinforcing steel bars, accurate arrangement of the reinforcing steel bars in a prefabricated part or a building structure is fundamentally guaranteed, and a solid foundation is laid for subsequent grouting connection, accuracy and stability of the whole structure and improvement of construction efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of bridge engineering, in particular to a steel bar positioning tool. Background Art

[0002] In prefabricated bridges, the core of the connection process of prefabricated components lies in the precise alignment of the steel bars with the grouting sleeves embedded in the concrete, and the use of special grouting materials for pouring to form a high-strength, high-reliability organic connection. This link is crucial to the stability, safety and construction efficiency of the entire prefabricated structural system. Therefore, extremely high requirements are placed on the relative position accuracy between the steel bars and the sleeves.

[0003] In prefabricated buildings, the connection between the steel bar and the sleeve adopts a clearance fit mode, supplemented by a single positioning bolt to further fix the steel bar, aiming to build a stable and accurate overall steel bar positioning system. However, due to the influence of a variety of potential factors, the steel bar may be offset or bent, thereby destroying the precise arrangement of multiple steel bars that should have been kept in the same straight line. This deviation will not only directly hinder the successful assembly of prefabricated components, but may also lead to problems such as extended assembly time and reduced connection stability. Utility Model Content

[0004] In order to overcome the above technical defects, the utility model provides a steel bar positioning tool to solve the problems involved in the background technology.

[0005] The utility model provides a steel bar positioning tool, comprising: a fixing seat, a plurality of positioning sleeves distributed on the positioning seat in a predetermined shape, and a plurality of positioning bolts evenly distributed on the circumference of the positioning sleeves.

[0006] Preferably or optionally, the predetermined shape is a quadrilateral, a pentagon, a hexagon or an octagon.

[0007] Preferably or optionally, three positioning bolts are arranged on the positioning sleeve on the side, and the three positioning bolts form an angle of 120° with each other.

[0008] Preferably or optionally, two positioning bolts are arranged on the positioning sleeve at the corner, and the two positioning bolts are distributed in the direction of the side edges of the positioning sleeve.

[0009] Preferably or optionally, the fixing seat comprises: a first positioning plate and a second positioning plate of the same shape and size and parallel to each other, and a plurality of reinforcing rib plates arranged between the first positioning plate and the second positioning plate;

[0010] The first positioning plate is provided with a positioning hole, and the positioning sleeve vertically passes through the positioning hole and is welded to a corresponding position of the second positioning plate.

[0011] Preferably or optionally, the reinforcing rib plate extends an extension portion toward the central portion of the first positioning plate, and a lifting hole is provided on the extension portion.

[0012] Preferably or optionally, the first positioning plate and the second positioning plate are both annular structures, forming a casting window inside.

[0013] Preferably or optionally, the first positioning plate and the second positioning plate are both steel plates, and the positioning sleeve is a steel cylinder.

[0014] Preferably or optionally, the height of the positioning sleeve is at least twice the height of the fixing seat.

[0015] Preferably or optionally, the positioning bolt is located at or approximately at a midpoint of the positioning sleeve that is higher than the fixing seat portion.

[0016] The utility model relates to a steel bar positioning tool, which has the following beneficial effects compared with the prior art: the utility model forms all-round contact and constraint on the steel bars inserted into the positioning tube through multiple positioning bolts. This multi-point positioning method can more effectively offset the slight deviation of the steel bar's own bending shape, fundamentally ensure the accurate arrangement of the steel bars in the prefabricated components or building structures, and lay a solid foundation for the subsequent grouting connection, the accuracy and stability of the overall structure, and the improvement of construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the steel bar positioning tool in the utility model.

[0018] Figure 2 It is a top view of the steel bar positioning tool in the utility model.

[0019] Figure 3 It is a side view of the steel bar positioning tool in the utility model.

[0020] The reference numerals are: 100, fixing seat; 200, positioning sleeve; 300, positioning bolt; 110, first positioning plate; 120, second positioning plate; 130, reinforcing rib plate; 140, extension part; 141, lifting hole; 150, casting window. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0022] See attached Figures 1 to 3 A steel bar positioning tool comprises: a fixing seat 100, a plurality of positioning sleeves 200 distributed on the fixing seat in a predetermined shape, and a plurality of positioning bolts 300 evenly distributed on the circumference of the positioning sleeves 200.

[0023] The fixing seat 100 can be selected as one of quadrilateral, pentagon, hexagon or octagon according to the design requirements of the prefabricated component. Correspondingly, the distribution form of the positioning sleeve 200 can also be selected as a variety of geometric shapes such as quadrilateral, pentagon, hexagon or octagon. This flexibility adapts to the diverse steel bar arrangement requirements in different prefabricated components or building structures, ensuring the versatility and applicability of the positioning tooling.

[0024] The main structure of the fixing seat 100 is composed of two first positioning plates 110 and second positioning plates 120 of the same shape, size and parallel to each other, which are reinforced and connected by multiple reinforcing ribs 130 to form a stable overall frame. Among them, the first positioning plate 110 is provided with a positioning hole corresponding to the positioning sleeve 200, and the positioning sleeve 200 vertically passes through the positioning hole and is welded to the corresponding position of the second positioning plate 120, ensuring the stable fixation and precise alignment of the positioning sleeve 200.

[0025] The first positioning plate 110 and the second positioning plate 120 are both steel plates, and the positioning sleeve 200 is a steel cylinder. This ensures that the fixing seat 100 has sufficient strength and rigidity, ensuring the bearing capacity and durability of the entire positioning tooling. At the same time, the selection of steel materials not only meets the strength requirements of the building structure, but also facilitates on-site welding and maintenance. In addition, the first positioning plate 110 and the second positioning plate 120 are both annular structures, forming a pouring window 150 inside. After the positioning tooling is installed in place, concrete can be poured into the interior of the formwork along the pouring window 150 to form a solid overall structure with the steel bars.

[0026] For the positioning sleeve 200 on the side of the fixing seat 100, three positioning bolts 300 are specially designed and configured. The three positioning bolts 300 are evenly distributed along the circumference of the positioning sleeve 200, and the angle between each other is 120°. Such a layout not only ensures the all-round constraint of the steel bar, but also facilitates the operator to quickly and accurately tighten the positioning bolts 300, thereby improving work efficiency. For the positioning sleeve 200 at the corner of the fixing seat 100, considering its special connection characteristics, in order to avoid the interference between the positioning bolts 300 and the template outside the steel bar, only two positioning bolts 300 are set. The two positioning bolts 300 point to the direction of the side of the positioning sleeve 200, respectively, to ensure the effective positioning of the steel bar in a limited space, and avoid interference between the positioning bolts 300 and between the positioning bolts 300 and the template.

[0027] In a further embodiment, the reinforcing rib plate 130 extends an extension portion 140 toward the center of the first positioning plate 110, and a hoisting hole 141 is provided on the extension portion 140. With this design, the user can easily lift and move the positioning tooling using a hoist, greatly improving the convenience of operation at the construction site.

[0028] In a further embodiment, the height of the positioning sleeve 200 is at least twice the height of the fixing seat 100, ensuring that the steel bar has sufficient length to be inserted into the positioning sleeve 200, and the connection quality will not be affected by the steel bar being too short during the concrete pouring process. At the same time, the higher positioning sleeve 200 also provides sufficient operating space for the subsequent grouting, anchoring and other processes. Moreover, the positioning bolt 300 is located at or approximately at the midpoint of the portion of the positioning sleeve 200 that is higher than the fixing seat 100. This is convenient for workers to operate, and can ensure that the positioning bolt 300 applies a balanced pre-tightening force to the steel bar, which helps to maintain the stability of the steel bar in the positioning state, avoid bending or breaking of the steel bar due to excessive local force, and thus ensure the accuracy and reliability of the connection between the steel bar and the positioning sleeve 200.

[0029] In order to facilitate understanding of the technical solution of the steel bar positioning tool, a brief description of its working process is given: first, a comprehensive inspection of the positioning tool is carried out to ensure that its components (such as the fixing seat 100, the positioning sleeve 200, the positioning bolt 300, etc.) are intact, and the size and shape meet the design requirements, and the positioning tool is fixed at the designed elevation and orientation using the lifting hole 141 or other lifting devices. Then, the processed steel bars are inserted into the corresponding positioning sleeves 200 in turn to ensure that the insertion depth of the steel bars meets the design requirements and fits tightly with the inner wall of the positioning sleeve 200. By screwing multiple positioning bolts 300, each steel bar is contacted and fine-tuned at multiple points to ensure that the position of the steel bar in the positioning sleeve 200 is accurate and the axis is aligned. Then, the positioning bolts 300 are appropriately tightened and a suitable pre-tightening force is applied to ensure that the contact pressure between the steel bar and the positioning sleeve 200 is moderate, which can effectively fix the position of the steel bar without excessively squeezing the steel bar to deform or damage the positioning sleeve 200, thereby achieving the fixing of the steel bar.

[0030] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A steel bar positioning tool, characterized in that: include: A fixing seat (100), a plurality of positioning sleeves (200) distributed on the positioning sleeve in a predetermined shape, and a plurality of positioning bolts (300) evenly distributed in the circumferential direction of the positioning sleeve (200); three positioning bolts (300) are arranged on the positioning sleeve (200) located on the side, and the three positioning bolts (300) are mutually angled at 120 degrees.

2. The steel bar positioning tool according to claim 1, characterized in that: The predetermined shape is a quadrilateral, a pentagon, a hexagon or an octagon.

3. The steel bar positioning tool according to claim 1 or 2, characterized in that: Two positioning bolts (300) are arranged on the positioning sleeve (200) located at the corner, and the two positioning bolts (300) are distributed in the direction of the side edges of the positioning sleeve (200).

4. The steel bar positioning tool according to claim 1, characterized in that: The fixing seat (100) comprises: a first positioning plate (110) and a second positioning plate (120) of the same shape and size and parallel to each other, and a plurality of reinforcing rib plates (130) arranged between the first positioning plate (110) and the second positioning plate (120); The first positioning plate (110) is provided with a positioning hole, and the positioning sleeve (200) vertically passes through the positioning hole and is welded to a corresponding position of the second positioning plate (120).

5. The steel bar positioning tool according to claim 4, characterized in that: The reinforcing rib plate (130) extends an extension portion (140) toward the central portion of the first positioning plate (110), and a hoisting hole (141) is provided on the extension portion (140).

6. The steel bar positioning tool according to claim 4, characterized in that: The first positioning plate (110) and the second positioning plate (120) are both annular structures, and a casting window (150) is formed inside.

7. The steel bar positioning tool according to claim 4, characterized in that: The first positioning plate (110) and the second positioning plate (120) are both steel plates, and the positioning sleeve (200) is a steel cylinder.

8. The steel bar positioning tool according to claim 1, characterized in that: The height of the positioning sleeve (200) is at least twice the height of the fixing seat (100).

9. The steel bar positioning tool according to claim 8, characterized in that: The positioning bolt (300) is located at or approximately at the midpoint of the portion of the positioning sleeve (200) that is higher than the fixing seat (100).

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