Hydraulic and wind dual-purpose anchor rod

Abstract

The utility model discloses a hydraulic wind power dual -purpose anchor rod relates to anchor rod technical field, including the quick female joint, the pressure -sustaining oversleeve, the pressure -sustaining anchor rod and the pressure -sustaining undersleeve that connect gradually, the pressure -sustaining anchor rod is hollow design, and the pressure -sustaining oversleeve and the pressure -sustaining undersleeve are arranged at the outer end and the inner end of pressure -sustaining anchor rod respectively, and the inside of pressure -sustaining oversleeve and pressure -sustaining undersleeve respectively with pressure -sustaining anchor rod communicate, the outer end of pressure -sustaining oversleeve is equipped with the connecting port of connecting quick female joint, and the outer end of quick female joint is equipped with the connecting port for connecting quick male joint, and quick male joint is used for being connected with external injection pressure equipment, the utility model discloses can realize the quick switching of hydraulic and wind power two injection pressure medium, still can prevent the leakage problem at the joint.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolt technology, specifically to an anchor bolt that can be used for both hydraulic and wind power. Background Technology

[0002] Rock bolts are widely used in tunnel support due to their high load-bearing capacity, good support effect, low cost, and simple installation process. As a widely used support device, they mainly reinforce rock masses and improve the self-stability of surrounding rock through grouting and pre-tightening. However, with the increase in deep resource mining and complex geological tunnel projects, traditional rock bolts have gradually revealed technical bottlenecks in terms of multi-functional adaptability. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic and wind-powered dual-purpose anchor bolt that can quickly switch between hydraulic and wind-powered injection media and prevent leakage at the joint.

[0004] This utility model includes a quick-connect female connector, a pressure-holding large sleeve, a pressure-holding anchor rod, and a pressure-holding small sleeve connected in sequence. The pressure-holding anchor rod is hollow. The pressure-holding large sleeve and the pressure-holding small sleeve are respectively located at the outer and inner ends of the pressure-holding anchor rod, and the interiors of the pressure-holding large sleeve and the pressure-holding small sleeve are respectively connected to the pressure-holding anchor rod. The outer end of the pressure-holding large sleeve is provided with a connection port for connecting to the quick-connect female connector, and the outer end of the quick-connect female connector is provided with a connection port for connecting to the quick-connect male connector. The quick-connect male connector is used to connect to external pressure injection equipment.

[0005] Preferably, the end of the connection between the pressure-holding anchor rod and the pressure-holding sleeve is provided with a leak-proof structure, and the outer diameter of the leak-proof structure gradually decreases from the direction of the pressure-holding anchor rod body to the outer end.

[0006] Preferably, the longitudinal section of the leak-proof structure is trapezoidal.

[0007] Preferably, the angle between the hypotenuse of the trapezoid and the centerline of the pressure-holding anchor is between 10 and 20 degrees.

[0008] Preferably, the pressure-holding anchor bolt is a double-layer concave tubular structure made of thin-walled metal material.

[0009] Preferably, the pressure-holding anchor bolt is made of seamless steel pipe with anti-corrosion treatment on the surface.

[0010] In summary, this utility model has the following beneficial effects: 1. A quick female connector is connected to the outer end of the pressure-holding sleeve. A connection port for connecting a quick male connector is provided at the outer end of the quick female connector. The quick male connector can be connected to an external air compressor or water injection machine to realize the quick switching between hydraulic tensioning and pneumatic tensioning of the anchor bolt, thus meeting the needs of diversified tensioning media. 2. A leak-proof structure is provided at the end where the pressure-holding anchor bolt connects to the pressure-holding sleeve, which makes the connection between the two more airtight and can prevent the medium from leaking along the axial direction of the anchor bolt. At the same time, it can also prevent the intrusion of external groundwater or rock debris, and achieve the pressure-holding function when water or air is injected. Attached Figure Description

[0011] Figure 1 This is a structural exploded view of a hydraulic and wind-powered anchor rod according to this utility model; Figure 2 This is a schematic diagram of the overall structure of a hydraulic and wind-powered anchor rod according to the present invention; Figure 3 This is a partially enlarged schematic diagram of the pressure-holding anchor bolt in another embodiment; Figure 4 for Figure 3 A schematic diagram of the leak-proof structure.

[0012] In the diagram: 1. Quick-connect male connector; 2. Quick-connect female connector; 3. Pressure-holding large sleeve; 4. Leak-proof structure; 5. Pressure-holding anchor bolt; 6. Pressure-holding small sleeve. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] The orientations mentioned in this specification are based on the orientation of the hydraulic and wind-powered dual-purpose anchor rod of this utility model when it is working normally. They do not limit the orientation during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.

[0015] like Figures 1 to 2 As shown in the figure, a hydraulic and wind-powered dual-purpose anchor bolt includes a quick-connect female connector 2, a pressure-holding large sleeve 3, a pressure-holding anchor bolt 5, and a pressure-holding small sleeve 6 connected in sequence. The pressure-holding anchor bolt 5 is hollow. The pressure-holding large sleeve 3 and the pressure-holding small sleeve 6 are respectively located at the outer and inner ends of the pressure-holding anchor bolt 5, and their interiors are connected to the pressure-holding anchor bolt 5. The outer end of the pressure-holding large sleeve 3 is provided with a connection port for connecting the quick-connect female connector 2, and the quick-connect female connector 2 and the connection port of the pressure-holding large sleeve 3 are threaded together. The outer end of the quick-connect female connector 2 is provided with a connection port for connecting the quick-connect male connector 1, which is used to connect to an external pressure injection device.

[0016] like Figure 3 and Figure 4As shown, in another embodiment, the end of the connection between the pressure-holding anchor rod 5 and the pressure-holding large sleeve 3 is provided with a leak-proof structure 4. The outer diameter of the leak-proof structure 4 gradually decreases from the direction of the pressure-holding anchor rod 5 body outward. Preferably, the longitudinal section of the leak-proof structure 4 is trapezoidal, and the outer diameter of the leak-proof structure 4 transitions smoothly. Preferably, the angle between the hypotenuse of the trapezoid and the center line of the pressure-holding anchor rod 5 is between 10 and 20 degrees. A reasonable transition slope can play a guiding role during installation. At the same time, the design of the leak-proof structure 4 allows the pressure-holding anchor rod 5 to have a gradual contact process with the pressure-holding large sleeve 3 during the tightening process. This can achieve self-advancing tightening, avoid air leakage caused by poor contact due to surface manufacturing errors, and also avoid contact gaps caused by uneven tightening force at various points during the tightening process. This can prevent the medium from leaking along the anchor rod axis, and at the same time prevent the intrusion of external groundwater or rock debris, achieving the pressure-holding function while injecting water or air.

[0017] Furthermore, the pressure-holding anchor 5 is a double-layer concave tubular structure made of thin-walled metal material. The pressure-holding anchor 5 is made of seamless steel pipe with anti-corrosion treatment on the surface. The anchor expands by high-pressure water or air flow, completely adhering to the irregular hole wall drilled. The friction, mechanical locking force and pressure generated along the entire length of the anchor reinforce the rock mass. Its construction is fast and does not require grouting. It is suitable for tunnel, slope and other projects, and also has the function of hollow grouting. The anchor body is made of seamless steel pipe with anti-corrosion treatment on the surface. It has strong vibration resistance and can be affected by shear displacement.

[0018] During operation, anchor holes with matching diameters are drilled in the target rock stratum. Rock cuttings are cleaned from the holes, and pressure-holding anchor rod 5 is inserted into the borehole. The end of the pressure-holding large sleeve 3 protrudes from the borehole opening, while the end of the pressure-holding small sleeve 6 extends into the top of the hole. The quick male connector 1 of the external air duct or water pipe is inserted into the quick female connector 2. An external air compressor or water injection machine supplies air or water into the anchor rod. The end of the pressure-holding anchor rod 5 is equipped with a leak-proof structure 4 to prevent media leakage. The pressure-holding anchor rod 5 expands under pressure, achieving the effect of supporting and reinforcing the rock stratum.

[0019] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A hydraulic and wind-powered dual-purpose anchor bolt, characterized in that: The device includes a quick-connect female connector (2), a pressure-holding large sleeve (3), a pressure-holding anchor rod (5), and a pressure-holding small sleeve (6) connected in sequence. The pressure-holding anchor rod (5) is hollow. The pressure-holding large sleeve (3) and the pressure-holding small sleeve (6) are respectively located at the outer and inner ends of the pressure-holding anchor rod (5). The interiors of the pressure-holding large sleeve (3) and the pressure-holding small sleeve (6) are respectively connected to the pressure-holding anchor rod (5). The outer end of the pressure-holding large sleeve (3) is provided with a connection port for connecting the quick-connect female connector (2). The outer end of the quick-connect female connector (2) is provided with a connection port for connecting the quick-connect male connector (1). The quick-connect male connector (1) is used to connect to an external pressure injection device.

2. The hydraulic and wind-powered dual-purpose anchor bolt as described in claim 1, characterized in that: The end of the connection between the pressure-holding anchor rod (5) and the pressure-holding sleeve (3) is provided with a leak-proof structure (4), and the outer diameter of the leak-proof structure (4) gradually decreases from the direction of the pressure-holding anchor rod (5) body to the outer end.

3. The hydraulic and wind-powered dual-purpose anchor bolt as described in claim 2, characterized in that: The longitudinal section of the leak-proof structure (4) is trapezoidal.

4. The hydraulic and wind-powered dual-purpose anchor bolt as described in claim 3, characterized in that: The angle between the hypotenuse of the trapezoid and the centerline of the pressure-holding anchor (5) is between 10 and 20 degrees.

5. The hydraulic and wind-powered dual-purpose anchor bolt as described in claim 1, characterized in that: The pressure-holding anchor (5) is a double-layer concave tubular structure made of thin-walled metal material.

6. The hydraulic and wind-powered dual-purpose anchor bolt as described in claim 1, characterized in that: The pressure-holding anchor rod (5) is made of seamless steel pipe with anti-corrosion treatment on the surface.

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