Grouting anchor rod for geological disaster prevention and control construction

Abstract

The utility model provides a grouting anchor rod for geological disaster prevention and control construction, and relates to the technical field of geological disaster equipment. The grouting anchor rod for geological disaster prevention and control construction comprises a main rod body, grading holes are formed in the outer portion of the main rod body, and a mounting sleeve is arranged at the bottom end of the main rod body. According to the grouting anchor rod for geological disaster prevention and control construction, through cooperation of a grading hole, a mounting sleeve, a fixing ring, a sliding rod and a telescopic rod, before the anchor rod enters a rock stratum, the telescopic rod is shortened, a top ring drives the sliding rod to move downwards, the sliding rod drives a round sleeve to move downwards, and the grading hole is covered by the round sleeve; the grouting holes of the anchor rod can be prevented from being blocked by external soil, and the problems that an existing anchor rod is generally provided with multi-stage grouting holes, when the anchor rod enters a rock stratum, the external soil easily blocks the grouting holes of the anchor rod, and during grouting, part of the grouting holes cannot be used, so that the grouting efficiency of the anchor rod is affected are solved.

Description

Technical Field

[0001] This utility model relates to a construction grouting anchor, specifically a construction grouting anchor for geological disaster prevention, and belongs to the technical field of geological disaster equipment. Background Technology

[0002] Geological disaster prevention and control engineering refers to engineering measures or methods for preventing and controlling geological disasters, such as retaining walls, slope protection, rockfall retaining walls, rockfall platforms, and open tunnels built to prevent landslides. Among these, grouting anchors are an important means of geological reinforcement. By inserting grouting anchors into the rock strata and grouting the rock strata, the overall rock strata are reinforced. Anchors are the most basic component of roadway support in modern coal mines. They reinforce the surrounding rock of the roadway together, allowing the surrounding rock to support itself. Anchors are not only used in mines but also in engineering technology for the main reinforcement of slopes, tunnels, and dams. As a tension member that penetrates deep into the strata, an anchor is connected to the engineering structure at one end and penetrates into the strata at the other end. The entire anchor can be divided into a free section and an anchored section.

[0003] However, existing anchor bolts are generally designed with multiple grouting holes. When the anchor bolt enters the interior of the rock strata, the soil outside can easily block the grouting holes. During grouting, some grouting holes may become unusable, thus affecting the grouting efficiency of the anchor bolt. To address this issue, we provide a grouting anchor bolt for geological disaster prevention and control to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a grouting anchor for geological disaster prevention and control construction, with the specific technical solution as follows:

[0005] A grouting anchor for geological disaster prevention and control includes a main rod body with a graded hole on its outer surface. An installation sleeve is provided at the bottom end of the main rod body. A drill bit is threaded onto the outer surface of the installation sleeve. A circular sleeve is slidably connected to the outer surface of the main rod body. The inner wall of the circular sleeve is slidably connected to the outer surface of the graded hole. A support rod is connected to the outer surface of the circular sleeve. A fixing ring is connected to the outer surface of the main rod body. A square plate is connected to the outer surface of the fixing ring.

[0006] Preferably, the outer surface of the circular sleeve is connected to a sliding rod, and the outer surface of the sliding rod is slidably connected to the inside of the fixing ring.

[0007] Preferably, a top ring is connected to the outer surface of the slide rod, and the inner wall of the top ring is slidably connected to the outer surface of the main rod.

[0008] Preferably, a rectangular plate is connected to the outer surface of the top ring, and a telescopic rod is connected to the outer surface of the rectangular plate, with the bottom end of the telescopic rod connected to the upper surface of the square plate.

[0009] Preferably, a circular groove is formed on the bottom surface of the main rod, and the outer surface of the mounting sleeve is slidably connected to the inner wall of the circular groove.

[0010] Preferably, the outer surface of the main rod is threaded with a screw, the outer surface of the screw is threaded to the outer surface of the mounting sleeve, and the outer surface of the screw is threaded with a nut.

[0011] Preferably, there are two nuts, symmetrically distributed at both ends of the screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This geological disaster prevention and control grouting anchor bolt, through the cooperation of graded holes, installation sleeves, circular sleeves, support rods, fixing rings, sliding rods, and telescopic rods, works as follows: before the anchor bolt enters the rock stratum, the telescopic rod is shortened, the top ring drives the sliding rod downwards, and the sliding rod drives the circular sleeve downwards. The circular sleeve covers the graded holes, preventing external soil from easily clogging the anchor bolt's grouting holes when the anchor bolt enters the rock stratum. This solves the problem that existing anchor bolts, which are generally designed with multiple grouting holes, are easily clogged by external soil when the anchor bolt enters the rock stratum, potentially rendering some grouting holes unusable and affecting the grouting efficiency of the anchor bolt.

[0014] 2. This geological disaster prevention and control grouting anchor bolt, through the cooperation between the main rod body, circular groove, mounting sleeve, screw rod, and nuts, allows for easy installation. The mounting sleeve is inserted into the circular groove, the screw rod passes through the main rod body and mounting sleeve, the two nuts are screwed onto both ends of the screw rod, and the drill bit is rotated and screwed into the outer surface of the mounting sleeve. When the drill bit needs to be replaced, simply unscrew it from the outer surface of the mounting sleeve and install a new drill bit, thus achieving convenient drill bit replacement and installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a partial exploded view of the structure of this utility model;

[0019] Figure 5 This is an exploded view showing the positional relationship between the main rod and the circular sleeve of this utility model.

[0020] Attached Figure Descriptions: 1. Main rod body; 2. Grading hole; 3. Mounting sleeve; 4. Drill bit; 5. Round sleeve; 6. Support rod; 7. Fixing ring; 8. Square plate; 9. Sliding rod; 10. Top ring; 11. Rectangular plate; 12. Telescopic rod; 13. Round groove; 14. Screw; 15. Nut. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] Please see Figure 1-5 As shown, a grouting anchor for geological disaster prevention and control includes a main rod body 1. The main rod body 1 has four sets of graded holes 2 on its exterior. The four graded holes 2 are evenly distributed in a group. An installation sleeve 3 is provided at the bottom end of the main rod body 1. A circular groove 13 is provided on the bottom surface of the main rod body 1. The outer surface of the installation sleeve 3 is slidably connected to the inner wall of the circular groove 13. One end of the installation sleeve 3 is precisely stuck inside the circular groove 13, connecting the circular groove 13 and the installation sleeve 3 together.

[0023] The outer surface of the main rod 1 is threaded with a screw 14, the outer surface of the screw 14 is threaded with the outer surface of the mounting sleeve 3, and the outer surface of the screw 14 is threaded with a nut 15. Threaded holes are provided on the outer surfaces of both the main rod 1 and the mounting sleeve 3. The screw 14 and the threaded holes cooperate with each other. There are two threaded holes on the outer surface of the main rod 1, which are symmetrically distributed, and there are two threaded holes on the outer surface of the mounting sleeve 3, which are also symmetrically distributed.

[0024] The outer surface of the mounting sleeve 3 is threaded with a drill bit 4. The drill bit 4 is tapered and made of cemented carbide. Cemented carbide, as a metal-based composite material, is made of tungsten carbide as the matrix and is produced by processes such as hot isostatic pressing. It has extremely high hardness, red hardness and wear resistance, and is suitable for processing high-strength and high-hardness materials.

[0025] A circular sleeve 5 is slidably connected to the outer surface of the main rod 1. The inner wall of the circular sleeve 5 is slidably connected to the outer surface of the grading hole 2. A support rod 6 is connected to the outer surface of the circular sleeve 5. There are four circular sleeves 5 in total, which are evenly distributed. The support rod 6 fixes the four circular sleeves 5 together, so that the four circular sleeves 5 form a whole. When moving, the four circular sleeves 5 move together, which is convenient to operate. A fixing ring 7 is connected to the outer surface of the main rod 1. The fixing ring 7 is welded to the outer surface of the main rod 1 and cannot move up and down.

[0026] The outer surface of the sleeve 5 is connected to a sliding rod 9. The outer surface of the sliding rod 9 is slidably connected to the inside of the fixing ring 7. Lubricating oil is applied to the outer surface of the sliding rod 9 to reduce the friction between the sliding rod 9 and the fixing ring 7, making it easier for the sliding rod 9 to slide inside the fixing ring 7. There are four sliding rods 9, which are evenly distributed on the outer surface of the sleeve 5. The outer surface of the sliding rod 9 is connected to a top ring 10. The inner wall of the top ring 10 is slidably connected to the outer surface of the main rod 1. When the sliding rod 9 moves downward, the top ring 10 will slide on the outer surface of the main rod 1. The outer surface of the fixing ring 7 is connected to a square plate 8.

[0027] A rectangular plate 11 is connected to the outer surface of the top ring 10, and a telescopic rod 12 is connected to the outer surface of the rectangular plate 11. The bottom end of the telescopic rod 12 is connected to the upper surface of the square plate 8. Activating the switch of the telescopic rod 12 can shorten the telescopic rod 12. The top ring 10 will drive the sliding rod 9 to move downward. At this time, the top ring 10 slides on the outer surface of the main rod body 1, and the sliding rod 9 drives the circular sleeve 5 to move downward. At this time, the sliding rod 9 slides inside the fixed ring 7, and the sliding rod 9 pushes the circular sleeve 5 to move downward. The circular sleeve 5 will cover the grading hole 2, preventing the external soil from easily blocking the grading hole 2 of the anchor rod when the anchor rod enters the rock layer, thus preventing the problem of some grading holes 2 from becoming unusable.

[0028] There are two nuts 15, symmetrically distributed at both ends of the screw 14. By installing the two nuts 15 at the two ends of the screw 14, the mounting sleeve 3 can be fixed together with the main body 1. The threaded connection also makes it easy to separate the main body 1 from the mounting sleeve 3, thus achieving the purpose of easy installation and disassembly.

[0029] The telescopic rod 12 in this application is a common electrical device in the prior art. This application will not elaborate on its model or internal structure. It can also be replaced by other power sources.

[0030] When using this utility model: First, the mounting sleeve 3 is inserted into the inside of the circular groove 13. The screw 14 is passed through the main rod body 1 and the mounting sleeve 3. Then, two nuts 15 are screwed onto the two ends of the screw 14. The drill bit 4 is then rotated and screwed into the outer surface of the mounting sleeve 3 to install the drill bit 4. The threaded connection also facilitates the separation of the main rod body 1 and the mounting sleeve 3. Before the anchor rod enters the rock stratum, the telescopic rod 12 is shortened. The top ring 10 will drive the sliding rod 9 to move downward. At this time, the top ring 10 slides on the outer surface of the main rod body 1, and the sliding rod 9 drives the circular sleeve 5 to move downward. At this time, the sliding rod 9 slides inside the fixed ring 7. The sliding rod 9 pushes the circular sleeve 5 to move downward, and the circular sleeve 5 will cover the grading hole 2. When the anchor rod enters the rock stratum, it prevents the external soil from easily blocking the grading hole 2 of the anchor rod, causing some grading holes 2 to be unusable. This can improve the grouting efficiency.

[0031] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A grouting anchor for geological disaster prevention and control, comprising a main rod body (1), characterized in that: The main rod (1) has a grading hole (2) on its outside. The bottom end of the main rod (1) is provided with an installation sleeve (3). The outer surface of the installation sleeve (3) is threaded with a drill bit (4). The outer surface of the main rod (1) is slidably connected with a round sleeve (5). The inner wall of the round sleeve (5) is slidably connected with the outer surface of the grading hole (2). The outer surface of the round sleeve (5) is connected with a support rod (6). The outer surface of the main rod (1) is connected with a fixing ring (7). The outer surface of the fixing ring (7) is connected with a square plate (8).

2. The grouting anchor bolt for geological disaster prevention and control as described in claim 1, characterized in that: The outer surface of the sleeve (5) is connected to a slide rod (9), and the outer surface of the slide rod (9) is slidably connected to the inside of the fixing ring (7).

3. The grouting anchor bolt for geological disaster prevention and control as described in claim 2, characterized in that: The outer surface of the slide rod (9) is connected to a top ring (10), and the inner wall of the top ring (10) is slidably connected to the outer surface of the main rod (1).

4. The grouting anchor bolt for geological disaster prevention and control as described in claim 3, characterized in that: The outer surface of the top ring (10) is connected to a rectangular plate (11), and the outer surface of the rectangular plate (11) is connected to a telescopic rod (12). The bottom end of the telescopic rod (12) is connected to the upper surface of the square plate (8).

5. The grouting anchor bolt for geological disaster prevention and control as described in claim 1, characterized in that: The bottom surface of the main rod (1) is provided with a circular groove (13), and the outer surface of the mounting sleeve (3) is slidably connected to the inner wall of the circular groove (13).

6. The grouting anchor bolt for geological disaster prevention and control as described in claim 1, characterized in that: The outer surface of the main rod (1) is threaded with a screw (14), the outer surface of the screw (14) is threaded with the outer surface of the mounting sleeve (3), and the outer surface of the screw (14) is threaded with a nut (15).

7. A grouting anchor for geological disaster prevention and control as described in claim 6, characterized in that: There are two nuts (15), which are symmetrically distributed at both ends of the screw (14).

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