Positioning support for anchor rod

Abstract

The utility model discloses a positioning support for an anchor rod, which comprises more than two fan-shaped blocks (5), the side end face (5.2) of each fan-shaped block (5) is provided with a bulge (5.4) and / or a groove (5.5), and each fan-shaped block (5) is clamped with the groove (5.5) and / or the bulge (5.4) of the adjacent fan-shaped block (5) through the bulge (5.4) and / or the groove (5.5); the side end face (5.2) of each fan-shaped block (5) is provided with a semicircular groove (5.6), and the semicircular grooves (5.6) of every two adjacent fan-shaped blocks (5) form a positioning hole (1). The installation efficiency of the limiting support is improved, the manual workload is reduced, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to a positioning bracket for anchor bolts, belonging to the technical field of anchor bolt positioning brackets. Background Technology

[0002] Positioning brackets are widely used in prestressed anti-buoyancy anchor rods for basements and prestressed support anchor rods for foundation pits and slopes in building engineering. Their function is to isolate each strand of a bundle of steel strands so that each strand can be encapsulated by grout during grouting. Typically, the positioning brackets are made of plastic and have pre-set fixed positioning holes 1 and grouting positioning holes 4. The steel strands 2 pass through the positioning holes 1 to achieve the purpose of positioning and isolating each strand 2, and to ensure that each strand is approximately at a certain distance from the wall 3 of the anchor hole. Figure 1 As shown.

[0003] The existing positioning bracket is a one-piece molded structure, which has the following disadvantages in actual use: When making bundled steel strand assemblies, each steel strand and grouting pipe must pass through the corresponding positioning hole. The positioning bracket is set at intervals along the length of the steel strand, usually one positioning bracket is required every 1.5 meters. The length of the steel strand is usually 10-30 meters. Each positioning bracket must be threaded onto the steel strand starting from the end of the steel strand and evenly arranged. Therefore, the installation efficiency of the positioning bracket is low and the labor cost is high. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, this utility model provides a positioning bracket for anchor bolts, which helps to improve the installation efficiency of the positioning bracket. The specific technical solution is as follows.

[0005] A positioning bracket for anchor bolts, characterized in that it comprises two or more sector blocks, each sector block having a protrusion and / or groove on its side end face, each sector block engaging with the groove and / or protrusion of an adjacent sector block through the protrusion and / or groove; each sector block having a semi-circular groove on its side end face, the semi-circular grooves of two adjacent sector blocks forming a positioning hole.

[0006] Using the above technical solution, the positioning bracket is made by splicing two or more sector blocks. It is not necessary to start the positioning bracket from the end of the steel strand (or the rib of the anchor rod such as threaded steel) but to directly splice the sector blocks at the predetermined position of the steel strand to position the steel strand in the positioning hole composed of two semi-circular grooves, which helps to improve the installation efficiency of the positioning bracket.

[0007] Furthermore, the inner end face of the sector-shaped block is arc-shaped, and a grouting positioning hole is formed at the center of the positioning bracket. The grouting positioning hole is used to position the grouting pipe.

[0008] Furthermore, at least a portion of the sector-shaped block is provided with a limiting groove, which extends radially inward from the outer end face of the sector-shaped block. By providing the limiting groove, a portion of the steel strand can also be positioned within the limiting groove.

[0009] Furthermore, each of the aforementioned sector blocks is identical in shape and size. This makes each sector block a standard component, facilitating mass production and on-site assembly.

[0010] Preferably, the positioning bracket is composed of two or three of the aforementioned sector-shaped blocks. Assembling two or three sector-shaped blocks reduces the amount of assembly work and also helps to improve the overall structural strength of the positioning bracket, making it less prone to disintegration.

[0011] Furthermore, the sector-shaped block is made of plastic or metal.

[0012] This invention helps to improve the installation efficiency of the limit bracket, reduce manual labor, and save costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the current usage status of the existing limit bracket;

[0014] Figure 2 This is a schematic diagram of the sector-shaped block of the limiting bracket in Embodiment 1 of this utility model;

[0015] Figure 3 This is a schematic diagram of the usage state of the limiting bracket in Embodiment 1 of this utility model;

[0016] Figure 4 This is a schematic diagram of the usage state of a modified example of the limiting bracket of Embodiment 1 of this utility model;

[0017] Figure 5 This is a schematic diagram of a sector block in a modified embodiment of this utility model;

[0018] Figure 6 This is a schematic diagram of a limiting bracket in a modified embodiment of this utility model;

[0019] Figure 7 yes Figure 6 A schematic diagram of a modified version of the limiting bracket;

[0020] Figure 8 This is a schematic diagram of the limiting bracket in use according to a modified embodiment of this utility model;

[0021] Figure 9 This is a cross-sectional schematic diagram of a modified embodiment of the limiting bracket of this utility model.

[0022] In the diagram: 1. Positioning hole; 2. Steel strand; 3. Hole wall; 4. Grouting positioning hole; 5. Fan-shaped block; 5.1. Outer end face; 5.2. Side end face; 5.3. Inner end face; 5.4. Protrusion; 5.5. Groove; 5.6. Semicircular groove; 5.7. Limiting groove; 6. Grouting pipe. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1, see Figures 2-3 A positioning bracket for anchor bolts is generally circular and includes two sector blocks 5. Each sector block 5 has an outer end face 5.1, two side end faces 5.2 and an inner end face 5.3. The outer end face 5.1 forms the outer surface of the positioning bracket, the inner end face 5.3 forms the inner surface of the positioning bracket, and the side end faces 5.2 extend generally in the radial direction.

[0025] Each sector block 5 has a protrusion 5.4 and / or a groove 5.5 on its side end face 5.2. Each sector block 5 engages with the groove 5.5 and / or protrusion 5.4 of the adjacent sector block 5 through the protrusion 5.4 and / or groove 5.5. Each sector block 5 has a semi-circular groove 5.6 on its side end face 5.2. The semi-circular grooves 5.6 of two adjacent sector blocks 5 form a positioning hole 1.

[0026] The inner end face 5.3 of the sector block 5 is arc-shaped. The inner end faces 5.3 of the two sector blocks 5 are combined to form a grouting positioning hole 1. The center of the positioning bracket is the grouting positioning hole 1, which is used to position the grouting pipe 6.

[0027] like Figure 4 As shown, more preferably, at least a portion of the sector block 5 is provided with a limiting groove 5.7, which extends radially inward from the outer end face 5.1 of the sector block 5. By providing the limiting groove 5.7, a portion of the steel strand 2 can also be positioned in the limiting groove 5.7.

[0028] Preferably, each sector block 5 is identical in shape and size. This makes each sector block 5 a standard component, facilitating mass production and on-site assembly. The sector blocks 5 can be made of plastic or metal.

[0029] For variations, see Figures 5-8 The number of sector blocks 5 in a single positioning bracket can be 3 or more, and some sector blocks 5 can also be provided with limiting grooves 5.7, so as to accommodate the positioning of 3 to 6 bundles of steel strands 2.

[0030] Among them, such as Figure 9 As shown, grooves 5.5 and / or protrusions 5.4 can be spaced out in multiples in the thickness direction of each sector block 5, which can also improve the stability of the positioning bracket.

[0031] Among them, such as Figure 7 As described above, both the groove 5.5 and the protrusion 5.4 are mutually cooperating isosceles trapezoidal structures. Adjacent sector blocks 5 can achieve the cooperative connection of the groove 5.5 and the protrusion 5.4 by moving relative to each other along the axial direction of the steel strand 2. The groove 5.5 and the protrusion 5.4 with this structure not only facilitate assembly, but also help improve the stability of the positioning bracket after assembly.

[0032] The positioning bracket of this utility model is formed by splicing two or more sector blocks 5. It is not necessary to start the positioning bracket from the end of the steel strand 2 (or the rib of the anchor rod such as threaded steel) but to directly splice the sector blocks 5 at the predetermined position of the steel strand 2 to position the steel strand 2 in the positioning hole 1 composed of two semi-circular grooves 5.6, which helps to improve the installation efficiency of the positioning bracket.

[0033] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention is not limited to the specific embodiments described above; these embodiments are merely illustrative and not limiting. Those skilled in the art, under the guidance of the present invention, can make many modifications without departing from the spirit and scope of the claims, and all such modifications fall within the protection scope of the present invention.

Claims

1. A positioning bracket for anchor bolts, characterized in that, The device includes two or more sector blocks (5), each sector block (5) having a protrusion (5.4) and / or a groove (5.5) on its side end face (5.2), each sector block (5) engaging with the groove (5.5) and / or protrusion (5.4) of an adjacent sector block (5) through the protrusion (5.4) and / or groove (5.5); each sector block (5) has a semi-circular groove (5.6) on its side end face (5.2), and the semi-circular grooves (5.6) of two adjacent sector blocks (5) form a positioning hole (1).

2. A positioning bracket for anchor bolts according to claim 1, characterized in that, The inner end face (5.3) of the sector block (5) is arc-shaped, and the center of the positioning bracket forms a grouting positioning hole (4).

3. A positioning bracket for anchor bolts according to claim 1, characterized in that, At least a portion of the sector block (5) is provided with a limiting groove (5.7), which extends radially inward from the outer end face of the sector block (5).

4. A positioning bracket for anchor bolts according to claim 1, characterized in that, Each of the said sector blocks (5) has the same shape and size.

5. A positioning bracket for anchor bolts according to claim 4, characterized in that, The positioning bracket is composed of two or three of the aforementioned sector blocks (5).

6. A positioning bracket for anchor bolts according to claim 1, characterized in that, The sector block (5) is made of plastic or metal.

7. A positioning bracket for anchor bolts according to claim 1, characterized in that, The grooves (5.5) and / or protrusions (5.4) are spaced apart in the thickness direction of each of the sector blocks (5).

8. A positioning bracket for anchor bolts according to claim 1, characterized in that, The groove (5.5) and the protrusion (5.4) are both isosceles trapezoidal structures that fit together.

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