A hanging net anchor rod nut structure

Abstract

The utility model discloses a kind of anchor rod nut structures for hanging net, including nut body, the hollow structure being set inside nut body and its inner wall is equipped with the mounting thread for being connected with anchor rod assembly, the nut body includes integrally formed setting assembly section and hanging net section;The assembly section is set as linear end structure, for with pipe joint anchor rod insertion and assembly cooperation;The junction of the assembly section with the hanging net section is provided with mounting convex edge, the mounting convex edge with the hanging net section jointly constitute T type nut structure;The outside of the hanging net section is equipped with the hanging net thread for being cooperated with mounting nut, the beneficial effects of the utility model is to adopt integrally formed structure, and the structure stability is strong, is equipped with assembly section, can be cooperated with pipe joint anchor rod insertion and assembly to effectively improve the cooperation precision between nut and anchor rod, is equipped with hanging net section, can be cooperated with mounting nut to install and fix anchor net, without additional roof, pressing plate and anchor rod, and the hanging of anchor net can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of anchor mesh fixing accessories, and in particular to an anchor nut structure for hanging mesh. Background Technology

[0002] In existing technologies, most underground coal mine roadway anchor mesh support systems employ drilling and fixing anchor bolts with anchoring agents. These agents consist of two components and require stirring to solidify. After the anchor bolts are fixed, a special plastic damping nut or a through-pin torque nut is used to apply pre-tightening force. During installation, the anchoring agent is placed into the pre-drilled anchor bolt hole, and then the anchor bolt tray and a special nut are attached to the tail of the anchor bolt. The anchor bolt is then inserted into the anchor bolt hole, and the special nut is embedded in the head of a conventional sleeve. When the drilling rig rotates the sleeve, the nut at the bottom... The presence of a plastic plug or metal pin prevents relative rotation between the nut and the anchor rod, causing the anchor rod to rotate and thus stirring the anchoring agent. After the anchoring agent has initially set, restarting the drilling rig restricts the anchor rod's rotation due to the initial anchoring force. At this point, the drilling rig's torque forces the nut to rotate. When the torque reaches a certain level, the anchor rod's tail end pushes out or cuts off the plastic plug or metal pin at the bottom of the nut. Then, through the movement of the sleeve, relative rotation between the nut and the anchor rod resumes, ultimately tightening the nut and applying preload. Existing anchor nuts only serve the purpose of applying preload, making their function relatively simple. If anchor mesh needs to be installed, additional nuts and trays are required to assemble the mesh in the tunnel, resulting in low economic efficiency. Furthermore, the assembly precision between existing anchor nuts and slotted anchor rods is low, affecting the anchoring effect.

[0003] Chinese utility model patent application number 202020578793.6 discloses a coal mine underground support anchor mesh fixing device, including an anchor rod, a sleeve sleeved at the top of the anchor rod, a spiral blade welded to the annular side of the sleeve, a connecting sleeve and a threaded sleeve sleeved on the anchor rod, the connecting sleeve located below the sleeve, the threaded sleeve located below the connecting sleeve, and the left and right sides of the connecting sleeve connected to the threaded sleeve by a top rod, a pressure plate, a pad, and a nut sleeved on the lower part of the anchor rod, a top plate welded to the upper side of the pressure plate, the pad located between the pressure plate and the nut, the nut being threadedly connected to the anchor rod, and the nut located below the pad, the pressure plate located below the threaded sleeve. However, this coal mine underground support anchor mesh fixing device requires the top plate and pressure plate to cooperate with the anchor rod to install and fix the anchor mesh, which has low economic efficiency. Furthermore, the assembly accuracy between the anchor rod nut and the slotted anchor rod is low, affecting the anchoring effect. Utility Model Content

[0004] The purpose of this invention is to provide a structure for anchor bolt nuts used for wire mesh installation.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: An anchor nut structure for netting includes a nut body, the nut body having a hollow internal structure and its inner wall having installation threads for assembly and connection with an anchor rod, the nut body including an integrally formed assembly section and a netting section. The assembly section is configured with a straight end structure for use with slotted anchor bolts. An installation flange is provided at the connection between the assembly section and the hanging mesh section, and the installation flange and the hanging mesh section together form a T-shaped nut structure.

[0006] The outer side of the mesh section is provided with mesh threads for engaging with the installation nut.

[0007] The nut body has a positioning relief groove at one end near the hanging section. The positioning relief groove is an annular groove structure and its outer diameter is larger than the outer diameter of the installation thread.

[0008] The assembly section is fitted with the slotted anchor bolt.

[0009] The side surface of the mesh section has a continuous sectional structure arranged around the mesh thread spiral.

[0010] The continuous sectional structure forms an inclined hexagonal nut-like structure.

[0011] The inner side of the end of the mesh hanging section away from the assembly section is provided with an installation through hole corresponding to the positioning pressure groove, and the positioning pressure groove is connected to the outside through the installation through hole.

[0012] The mounting flange has a chamfered structure on the side closest to the hanging mesh section.

[0013] The edge of the hanging mesh section away from the mounting flange has a chamfered structure.

[0014] The surface of the nut body is coated with a zinc plating.

[0015] The beneficial effects of this utility model are: Adopting an integrated molding structure, it has strong structural stability. It is equipped with an assembly section, which can be used with slotted anchor bolts to effectively improve the fit accuracy between the nut and the anchor bolt, ensuring the anchoring effect. It is also equipped with a mesh hanging section, which can be used with the installation nut to install and fix the anchor mesh. The anchor mesh can be hung without additional top plates, pressure plates and anchor bolts, which can achieve high economic benefits. It has an internal positioning and pressure relief groove, which can meet the positioning and pressure relief requirements of the anchor bolt and provide installation strain margin for the anchor bolt. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a sectional view of the present invention; Figure 3 This is a schematic diagram of the assembly section and the mounting flange of this utility model.

[0017] In the diagram: 1. Nut body; 11. Assembly section; 12. Mesh hanging section; 13. Mounting flange; 2. Mesh hanging thread; 3. Continuous cross-sectional structure; 4. Mounting thread; 5. Position relief groove; 6. Mounting through hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. An anchor nut structure for wire mesh installation includes a nut body 1. The nut body 1 includes an integrally formed assembly section 11 and a wire mesh hanging section 12. The assembly section 11 has a straight end structure, and an installation flange 13 is provided at the connection between the assembly section 11 and the wire mesh hanging section 12. The outer side of the wire mesh hanging section 12 is provided with a wire mesh hanging thread 2, and a continuous sectional structure 3 is spirally arranged around the wire mesh hanging thread 2 on its side surface. The overall structure diagram of this utility model is shown below. Figure 1 As shown.

[0019] The assembly section 11 and the mesh-hanging section 12 are hollow internally, and their inner walls are provided with installation threads 4 corresponding to the anchor rods. The nut body 1 is assembled and connected to the anchor rods through the installation threads 4. The assembly section 11 is inserted and fitted with the slotted anchor rods. The mounting flange 13 and the mesh-hanging section 12 together form a T-shaped nut structure. The assembly section 11 is used to cooperate with the slotted anchor rods to improve the assembly accuracy between the nut and the anchor rod. The mesh-hanging section 12 is used to meet the mesh-hanging requirements. By cooperating with the installation nut, the anchor mesh can be installed and fixed, thus ensuring the strength of the nut body 1 while meeting the installation requirements of the anchor mesh. The mesh-hanging operation can be achieved without additional top plates, pressure plates, and anchor rods. The cross-sectional view of this utility model is shown below. Figure 2 As shown.

[0020] The nut body 1 has a positioning relief groove 5 at one end near the hanging section 12. The positioning relief groove 5 is an annular groove structure with an outer diameter larger than the outer diameter of the mounting thread 4. The positioning relief groove 5 serves as a positioning relief structure inside the nut body 1 to provide positioning relief to the anchor rod during the engagement between the nut body 1 and the anchor rod. Its outer diameter is larger than the outer diameter of the mounting thread 4, i.e., larger than the outer diameter of the anchor rod, providing strain margin for the anchor rod. A schematic diagram of the engagement between the assembly section 11 and the mounting flange 13 is shown below. Figure 3 As shown.

[0021] The inner side of the end of the mesh hanging section 12 away from the assembly section 11 is provided with an installation through hole 6 corresponding to the positioning groove 5. The positioning groove 5 is connected to the outside through the installation through hole 6. The installation through hole 6 is used to meet the installation requirements of the anchor rod.

[0022] The mounting flange 13 has a chamfered structure on the side near the mesh section 12, and the mesh section 12 has a chamfered structure on the side away from the mounting flange 13. The continuous cross-section structure 3 on the side surface of the mesh section 12 forms an inclined hexagonal nut structure. The surface of the nut body 1 is coated with a galvanized coating. The inclined hexagonal nut structure is used to meet the installation requirements of the mounting nut to cooperate with the mounting nut to install and fix the anchor mesh.

[0023] In this technical solution, the anchor nut can be used alone for anchor support installation according to actual conditions. When used alone for anchor support installation, there is no need to provide installation support for the anchor mesh, so there is no need to assemble the installation nut.

[0024] Working principle: In use, the assembly section 11 of the nut body 1 is screwed onto the end of the anchor rod protruding from the drill hole, so that the mounting flange 13 abuts against the end of the slotted anchor rod and the assembly section 11 is located inside the slotted anchor rod to achieve the support installation of the anchor rod. When the anchor mesh needs to be installed, the mesh hanging section 12 passes through the mesh hole of the anchor mesh and the mounting nut is screwed onto the mesh hanging section 12 of the nut body 1 through the mesh hanging thread 2. Thus, the anchor mesh is installed and fixed by the mounting nut and the mounting flange 13, thereby realizing the hanging of the anchor mesh.

[0025] The advantages of this utility model are that it adopts an integrated molding structure with strong structural stability, has an assembly section that can be used with slotted anchor bolts to effectively improve the fit accuracy between the nut and the anchor bolt, ensuring the anchoring effect, and has a mesh hanging section that can be used with the installation nut to install and fix the anchor mesh. The anchor mesh can be hung without additional top plates, pressure plates and anchor bolts, which is highly economical. It has an internal pressure relief groove that can meet the pressure relief requirements of the anchor bolt and provide installation strain margin for the anchor bolt.

[0026] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A structure for anchor bolt nuts used for wire mesh installation, comprising a nut body (1), wherein the nut body (1) has a hollow internal structure and its inner wall is provided with installation threads (4) for assembly and connection with anchor bolts, characterized in that, The nut body (1) includes an integrally formed assembly section (11) and a mesh hanging section (12). The assembly section (11) is configured with a straight end structure for use with the slotted anchor bolt. An installation flange (13) is provided at the connection between the assembly section (11) and the hanging mesh section (12), and the installation flange (13) and the hanging mesh section (12) together form a T-shaped nut structure. The outer side of the mesh section (12) is provided with mesh thread (2) for cooperating with the installation nut.

2. The anchor nut structure for wire mesh installation as described in claim 1, characterized in that, The nut body (1) has a positioning relief groove (5) at one end near the hanging mesh section (12). The positioning relief groove (5) is set as an annular groove structure and its outer diameter is larger than the outer diameter of the mounting thread (4).

3. The anchor nut structure for wire mesh installation as described in claim 2, characterized in that, The assembly section (11) is fitted with the slotted anchor bolt.

4. The anchor nut structure for wire mesh installation as described in claim 2, characterized in that, The side surface of the mesh section (12) is provided with a continuous sectional structure (3) that spirally surrounds the mesh thread (2).

5. The anchor nut structure for wire mesh installation as described in claim 4, characterized in that, The continuous sectional structure (3) constitutes an inclined hexagonal nut structure.

6. The anchor nut structure for wire mesh installation as described in claim 2, characterized in that, The inner side of the end of the hanging mesh section (12) away from the assembly section (11) is provided with an installation through hole (6) corresponding to the positioning pressure groove (5), and the positioning pressure groove (5) is connected to the outside through the installation through hole (6).

7. The anchor nut structure for wire mesh installation as described in claim 2, characterized in that, The mounting flange (13) has a chamfered structure on the side near the hanging section (12).

8. The anchor nut structure for wire mesh installation as described in claim 2, characterized in that, The edge of the hanging mesh section (12) away from the mounting flange (13) has a chamfered structure.

9. The anchor nut structure for wire mesh installation as described in any of claims 1-8, characterized in that, The surface of the nut body (1) is provided with a zinc coating.

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