Anchor rod positioning device and anchor rod

Abstract

The utility model provides an anchor rod positioning device which is used for positioning an anchor rod body in an anchor hole and comprises two hoops and a locking piece, the two hoops are arranged in an oppositely-spliced mode, each hoop comprises a first positioning portion, two clamping portions and two second positioning portions which are integrally formed, and the first positioning portion is of a folded structure and located in the middle of the corresponding hoop; the two clamping parts are located on the two sides of the first positioning part correspondingly, and each clamping part is provided with a clamping face matched with the outer surface of the anchor rod body; the two second positioning parts are located on the outer sides of the two clamping parts correspondingly, and each second positioning part is provided with a through hole matched with the corresponding locking piece; and the through holes of the second positioning parts of the two hoops are pairwise aligned and communicated, so that the locking piece can penetrate into the through holes to lock the two hoops in an opposite splicing manner, and the clamping surface of the clamping part is clamped on the anchor rod body. The anchor rod positioning device has the advantages of being high in positioning accuracy, small in anchoring resistance, wide in adaptive range and widely suitable for rapid installation and positioning of anchor rods under complex geological conditions.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering anchoring technology, and in particular to an anchor positioning device and an anchor. Background Technology

[0002] Anchor bolt technology is widely used in geotechnical engineering, underground structure anti-buoyancy, slope protection, and tunnel construction. Anchor bolts are typically made of high-tensile-strength materials such as reinforcing bars, steel pipes, or steel strands. During installation, the general procedure is to drill a hole first, then place the anchor bolt into it, and finally grout; or drill the hole, grout first, and then place the anchor bolt into it. In practice, the anchor bolt is prone to shifting after being placed in the hole. Therefore, positioning devices are usually installed on the anchor bolt to ensure it is centered in the hole, preventing it from directly contacting the hole wall.

[0003] Existing anchor bolt positioning devices mostly adopt a transverse positioning plate structure (perpendicular to the anchor hole axis), such as the utility model patent with patent number CN216075095U entitled "An Anchor Bolt Positioner and Anchor Bolt", which has the following defects:

[0004] 1. Due to uneven hole walls or debris inside the hole, the transverse positioning plate encounters significant resistance when the anchor rod is inserted into the anchor hole, making anchoring difficult. The positioning plate is also prone to deformation or even breakage.

[0005] 2. Poor adaptability: Traditional locators, in principle, can only be applied to one type of anchor rod body, making it difficult to adapt to the installation requirements of anchor rods of different diameters, resulting in poor versatility. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides an anchor bolt positioning device, which has the characteristics of wide adaptability, good versatility and low anchoring resistance.

[0007] This utility model adopts the following technical solution: an anchor bolt positioning device for positioning the anchor bolt body in an anchor hole, comprising two clamps and locking components that are joined together. Each clamp includes an integrally formed first positioning part, two clamping parts, and two second positioning parts, wherein: the first positioning part has a folded structure and is located in the middle of the clamp; the two clamping parts are respectively located on both sides of the first positioning part and are used to clamp the anchor bolt body; the two second positioning parts are respectively located on the outer sides of the two clamping parts, and each second positioning part has a through hole for the locking component to pass through; the through holes of the second positioning parts of the two clamps are aligned and connected to each other so that the locking component can pass through to lock the two clamps together, so that the clamping parts are clamped onto the anchor bolt body.

[0008] Preferably, the inner wall of the clamping part is provided with strip-shaped or block-shaped protrusions, which match the ribs on the outer surface of the anchor rod. When the clamp is locked, the protrusions are embedded in the grooves of the ribs on the outer surface of the anchor rod or stuck into the gaps of adjacent ribs to form an anti-slip interlocking structure.

[0009] Preferably, the folded structure of the first positioning part is V-shaped, with the V-shaped opening facing the anchor rod body.

[0010] Preferably, the folded structure of the first positioning part has two side walls that fit together, and its longitudinal direction is parallel to the axis of the anchor rod body.

[0011] Preferably, the locking component is a bolt assembly, including a screw and a nut. After the screw passes through the through hole of the second positioning part of the two clamps, the nut applies a pre-tightening torque to lock it, so that the clamping parts of the two clamps that are matched together clamp the anchor rod body.

[0012] Preferably, the first positioning part and the second positioning part of each clamp are arranged vertically.

[0013] Preferably, the outer edge of the folded structure of the first positioning part of the two clamps in the splicing arrangement is on the same positioning reference circumference as the outer edge of the second positioning part, and the diameter of the positioning reference circumference matches the design diameter of the anchor hole.

[0014] This utility model also provides an anchor bolt, including an anchor bolt body, wherein at least one of the above-mentioned anchor bolt positioning devices is provided on the anchor bolt body.

[0015] The technical advantages of the anchor bolt positioning device and anchor bolt provided by this utility model are as follows:

[0016] 1. Both the first and second positioning parts are arranged longitudinally (parallel to the axial direction of the anchor rod body and the anchor hole). When the anchor rod is inserted into the anchor hole, it experiences less resistance, making anchoring easier and the positioning parts less prone to deformation or breakage.

[0017] 2. Wide-range adaptive locking: Through the linkage design of the V-shaped elastic first positioning part and the clamping part, it can adapt to anchor rods of different diameters, covering common anchor rod specifications, and has good versatility.

[0018] 3. After the first and second positioning parts are assembled, they form a double-layer support, which provides greater support force while reducing the thickness of a single layer, making it easier to use stamping for the clamp. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is an exploded structural diagram of the anchor bolt positioning device according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the clamp structure of the anchor bolt positioning device in Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the assembly of the anchor bolt positioning device and the anchor bolt body in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the anchor rod body of Embodiment 1 of this utility model after the positioning device is installed and anchored in the anchor hole;

[0024] Figure 5 This is a schematic diagram of the clamp structure of the anchor bolt positioning device in Embodiment 2 of this utility model.

[0025] Reference numerals: Anchor rod body 10; Anchor hole 20; Clamp 1; First positioning part 11; Clamping part 12; Second positioning part 13; Through hole 14; Protrusion 15; Locking part 2; Screw 21; Nut 22. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1 to 4 The anchor bolt positioning device of this embodiment 1 is used to position the anchor bolt body 10 in the anchor hole 20. It includes two clamps 1 and a locking member 2 that are set together. The two clamps 1 are used to clamp the anchor bolt body 10.

[0029] Each clamp 1 includes an integrally formed first positioning part 11, two clamping parts 12, and two second positioning parts 13. The first positioning part 11 has a folded structure and is located in the middle of the clamp 1. The folded structure of the first positioning part 11 is V-shaped, with the V-shaped opening facing the anchor rod body 10. The two clamping parts 12 are located on both sides of the V-shape of the first positioning part 11 and are used to clamp the anchor rod body 10. The two second positioning parts 13 extend outward from both sides of the clamping parts 12, and each second positioning part 13 has a through hole 14 for the locking member 2 to pass through. The through holes 14 of the second positioning parts 13 of the two clamps 1 are aligned in pairs so that the locking member 2 can pass through, locking the two clamps 1 together and causing the clamping parts 12 to be clamped onto the anchor rod body 10.

[0030] The clamp 1 is made of metal material by stamping and forming in one piece. The first positioning part 11, the two clamping parts 12 and the two second positioning parts 13 of the clamp 1 are a whole. The V-shaped folding structure of the first positioning part 11, combined with the elasticity of the metal material, realizes wide-range adaptive locking and has good versatility. For example, the clamp 1 designed for anchor rods with a diameter of 32mm can also be used for anchor rods with a diameter of 36, 40 and 50mm.

[0031] The locking component 2 is a bolt assembly, including a screw 21 and a nut 22. After the screw 21 passes through the through holes 14 of the two aligned second positioning parts 13 of the two clamps 1, the nut 22 applies a preload torque to lock the bolt, so that the clamping parts 12 of the two clamps 1 clamp the anchor rod body 10. When the locking component 2 is a bolt assembly, one set of bolts is used for each pair of aligned through holes 14. Alternatively, the locking component 2 can use rivets and tie wires, with two sets of rivets and four sets of tie wires used for each pair of aligned through holes 14 to lock the two clamps 1.

[0032] like Figure 2 and Figure 3 As shown, a strip-shaped or block-shaped protrusion 15 is provided on the inner wall of the clamping part 12. The protrusion 15 matches the rib pattern on the outer surface of the anchor rod body 10. When the clamp 1 is locked, the protrusion 15 is embedded in the groove of the outer rib pattern of the anchor rod body 10 or stuck into the gap of the adjacent rib pattern to form an anti-slip interlocking structure.

[0033] like Figure 3 and Figure 4 As shown, the first positioning part 11 and the second positioning part 13 of each clamp 1 are vertically arranged. The first positioning part 11 and the second positioning part 13 are evenly distributed circumferentially along the anchor rod body 10. The longitudinal direction of the first positioning part 11 and the second positioning part 13 is parallel to the axial direction of the anchor rod body 10, and the radial direction is parallel to the radial direction of the cross-section of the anchor rod body 10 at their respective positions. See also Figure 4The first positioning part 11 and the second positioning part 13 are evenly distributed at 90° intervals along the circumference of the anchor rod body 10, respectively arranged on the horizontal line (XX) and vertical line (YY) of the cross-section of the anchor rod body 10. The outer edge of the folded structure of the first positioning part 11 of the two clamps 1, which are spliced ​​together, is on the same positioning reference circle a. The diameter of the positioning reference circle a matches the design diameter of the anchor hole 20, thus realizing the positioning of the anchor rod body 10 in the anchor hole 20. Specifically, the diameter of the positioning reference circle a is slightly smaller than the diameter of the anchor hole 20. When the anchor rod body 10 is about to deviate upwards, downwards, leftwards, or rightwards, the second positioning part 13 or the first positioning part 11 will support the hole wall of the anchor hole 20 to prevent the anchor rod body from deviating and achieve positioning.

[0034] The longitudinal direction of the first positioning part 11 and the second positioning part 13 of the clamp 1 is parallel to the axis of the anchor rod body 10. When the anchor rod body 10 is inserted into the anchor hole 20, the resistance is small, the anchoring is easy, and the positioning parts are not easily deformed or broken.

[0035] This embodiment also provides an anchor bolt, including an anchor bolt body 10, on which at least one anchor bolt positioning device is provided. Multiple anchor bolt positioning devices are evenly spaced along the axial direction of the anchor bolt body 10.

[0036] Example 2

[0037] Please see Figure 5 The clamp 1 includes an integrally formed first positioning part 11, two clamping parts 12, and two second positioning parts 13, wherein the first positioning part 11 has a folded structure. The main difference between the second embodiment and the first embodiment is that the folded structure of the first positioning part 11 of the clamp 1 in embodiment 2 is such that the two side walls are fitted together, and its longitudinal direction is parallel to the axis of the anchor rod.

[0038] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anchor rod positioning device for positioning an anchor rod body in an anchor hole, comprising two split clamps and a locking member, characterized in that, Each of the two said hoops comprises a first positioning part, two clamping parts and two second positioning parts, wherein: The first positioning part is in a folded structure and is located in the middle of the hoop; The two clamping parts are respectively located on the two sides of the first positioning part and are used for clamping the anchor rod body; The two second positioning parts are respectively located on the outer sides of the two clamping parts, and a through hole is formed on each of the second positioning parts, and the through hole is used for the locking member to pass through; The through holes of the second positioning parts of the two said hoops are aligned and penetrated in pairs, so that the locking member is passed through to lock the two said hoops in a split manner, and the clamping parts are clamped on the anchor rod body.

2. A rod positioning device according to claim 1, characterised in that A strip-shaped or block-shaped protrusion is arranged on the inner wall of the clamping part, the protrusion matches the rib pattern on the outer surface of the anchor rod body, when the hoop is locked, the protrusion is embedded in the groove of the rib pattern on the outer surface of the anchor rod body or is clamped in the gap between adjacent rib patterns, forming an anti-sliding occlusion structure.

3. A positioning device for an anchor rod according to claim 1, characterized in that The folded structure of the first positioning part is V-shaped, and the V-shaped opening faces the anchor rod body.

4. A roof anchor positioning device according to claim 1, wherein, The folded structure of the first positioning part is in a two-side wall adhering state, and the longitudinal direction is parallel to the axis of the anchor rod body.

5. The anchor positioning device of claim 1, wherein, The locking member is a bolt assembly comprising a screw rod and a nut, after the screw rod is passed through the through holes of the second positioning parts of the two hoops, the two said hoops are locked by applying a pre-tightening torque through the nut, so that the clamping parts of the two said hoops arranged in a split manner clamp the anchor rod body.

6. An anchor positioning device according to claim 1, characterised in that The first positioning part and the second positioning part of each of the two said hoops are arranged vertically.

7. An anchor positioning device according to claim 1, characterised in that, The outer edges of the folded structures of the first positioning parts of the two said hoops arranged in a split manner and the outer edges of the second positioning parts are located on the same positioning reference circle, and the diameter of the positioning reference circle matches the design diameter of the anchor hole.

8. An anchor rod comprising an anchor rod body, characterized in that The anchor rod body is provided with at least one anchor rod positioning device as claimed in any one of claims 1 to 7.

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