Roadway anchor rod supporting structure

Abstract

The utility model relates to a roadway anchor rod supporting structure, which belongs to the technical field of anchor rods and comprises a hollow anchor rod, a connector is mounted on the outer wall of the hollow anchor rod, and a fixing structure is arranged in the hollow anchor rod. A protection structure is arranged on the inner wall of the connector; the fixing structure comprises six resin anchoring agents arranged in the hollow anchor rod, the six resin anchoring agents are distributed in the dead center of the interior of the hollow anchor rod at equal intervals, and a round rod is movably connected to the inner wall of the hollow anchor rod. By arranging the fixing structure, after the hollow anchor rod is inserted into surrounding rock, a round rod is inserted into a connecting rod, at the moment, a rock drill drives the round rod to rotate and pierce a resin anchoring agent, the resin anchoring agent is fully mixed under rotation of the round rod and flows out through a discharging plate, and the hollow anchor rod and coal briquettes are fixed through the resin anchoring agent; and the resin anchoring agent is fully mixed, so that the bonding strength between the hollow anchor rod and coal is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to a tunnel anchor rod supporting structure. Background Art

[0002] Anchor support is a general term for support structures with anchor rods as the main body. It is an active support method and is widely used in mining projects. In recent years, with the continuous increase in mining depth, the characteristics of high ground pressure, high stress, and soft and broken internal structures in the tunnels have become increasingly prominent. Anchor support structures are often used in rectangular tunnels between super-large sections.

[0003] When installing anchor rods in surrounding rocks, resin anchoring agents are generally injected between the anchor rods and the surrounding rocks to strengthen the connection between the anchor rods and the surrounding rocks. However, in actual construction, the unsaturated polyester resin and curing agent in the anchoring agent are not fully mixed, and the chemical reaction is incomplete, thereby reducing the bonding strength between the anchor rods and the surrounding rocks and affecting the anchoring effect.

[0004] In order to solve the above problems, this application proposes a tunnel anchor support structure. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art and provides a tunnel anchor support structure.

[0006] The utility model solves the above technical problems with the following technical solutions: a tunnel anchor support structure, comprising a hollow anchor, a connector installed on the outer wall of the hollow anchor, and a fixing structure provided inside the hollow anchor;

[0007] The inner wall of the connector is provided with a protective structure;

[0008] The fixing structure includes a resin anchoring agent arranged inside the hollow anchor rod. There are six resin anchoring agents equidistantly distributed in the center of the hollow anchor rod. The inner wall of the hollow anchor rod is movably connected to a round rod, and one end of the round rod is in contact with the outer wall of the resin anchoring agent.

[0009] A connecting rod is provided inside the hollow anchor rod, and the outer wall of the connecting rod is fixedly connected to the inner wall of the resin anchor. The outer wall of the resin anchor is not connected to the inner wall of the hollow anchor rod. The connecting rod is provided to enhance the fixing effect of the resin anchor.

[0010] The inner wall of the round rod is inserted into the outer wall of the connecting rod. A puncture rod is installed at one end of the round rod adjacent to the resin anchor. The puncture rod is provided to facilitate breaking the outer skin of the resin anchor.

[0011] A tray is installed at one end of the round rod away from the puncture rod, and the outer wall of the tray is in contact with the carrier. The arrangement of the tray facilitates the installation of the round rod.

[0012] The protective structure includes a discharge plate installed on the inner wall of the connecting head, the inner wall of the discharge plate is rotatably connected to a rotating rod, and the outer wall of the rotating rod is installed with a first fan blade. The first fan blade is provided to prevent debris from entering the connecting head.

[0013] A second fan blade is installed on the side of the rotating rod away from the first fan blade, and one end of the rotating rod away from the first fan blade is fixedly connected to the outer wall of the connecting rod. By arranging the second fan blade, debris is further prevented from entering the connecting head.

[0014] The beneficial effects of the utility model are:

[0015] 1. After the hollow anchor rod is inserted into the surrounding rock by setting a fixed structure, the round rod is inserted into the connecting rod. At this time, the rock drill drives the round rod to rotate and puncture the resin anchor. The resin anchor is fully mixed under the rotation of the round rod and flows out through the discharge plate, so that the resin anchor fixes the hollow anchor rod and the coal block. By fully mixing the resin anchor, the bonding strength between the hollow anchor rod and the coal is effectively increased.

[0016] 2. By setting up a protective structure, the rotation of the round rod also drives the fan blades to rotate, which not only accelerates the outflow and stirring effect of the resin anchoring agent, but also effectively prevents the entry of debris due to the design of the fan blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This utility model is a schematic diagram showing the overall explosion structure;

[0018] Figure 2 This utility model is a cross-sectional schematic diagram showing the structure of a hollow anchor rod;

[0019] Figure 3 This utility model is a schematic diagram showing a protective structure;

[0020] Figure 4 The utility model is a schematic diagram showing the structure of the puncture rod.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Hollow anchor rod;

[0023] 2. Connector;

[0024] 3. Fixing structure; 301. Resin anchor; 302. Round rod; 303. Piercing rod; 304. Connecting rod; 305. Tray;

[0025] 4. Protective structure; 401. Discharge plate; 402. Rotating rod; 403. First fan blade; 404. Second fan blade. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0027] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0028] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0029] Reference Figure 1-4 A tunnel anchor support structure includes a hollow anchor 1, a connecting head 2 is installed on the outer wall of the hollow anchor 1, the inner wall of the hollow anchor 1 is connected to the inner wall of the connecting head 2, a fixing structure 3 is provided inside the hollow anchor 1, and the fixing structure 3 includes a resin anchor 301 arranged inside the hollow anchor 1. There are six resin anchors 301 equidistantly distributed in the center position of the interior of the hollow anchor 1, and the resin anchor 301 is packaged into a medicine roll and distributed inside the hollow anchor 1.

[0030] The inner wall of the hollow anchor rod 1 is movably connected with a round rod 302, and one end of the round rod 302 is in contact with the outer wall of the resin anchor 301. After the hollow anchor rod 1 is inserted into the surrounding rock through the connecting head 2, the round rod 302 is inserted into the interior of the hollow anchor rod 1. The resin anchor 301 is squeezed, rotated and stirred by the round rod 302 to trigger the curing reaction, so that the resin anchor 301 flows to the outside and connects with the surrounding rock.

[0031] A connecting rod 304 is provided inside the hollow anchor rod 1. The outer wall of the connecting rod 304 is fixedly connected to the inner wall of the resin anchor 301. The outer wall of the resin anchor 301 is not connected to the inner wall of the hollow anchor rod 1. The provided connecting rod 304 makes it convenient for personnel to stir and mix the resin anchor 301.

[0032] The inner wall of the round rod 302 is inserted into the outer wall of the connecting rod 304, and a puncture rod 303 is installed at one end of the round rod 302 adjacent to the resin anchor 301. The round rod 302 is aligned with the connecting rod 304 and inserted into the connecting rod 304. At this time, the puncture rod 303 pierces the resin anchor 301 and rotates the round rod 302 to drive the resin anchor 301 to mix, and the resin anchor 301 flows out from the connecting head 2 and is dispersed to the surrounding rock and fixed to it.

[0033] A tray 305 is installed at one end of the round rod 302 away from the piercing rod 303. The outer wall of the tray 305 fits with the carrier, and the carrier represents the surrounding rock. When the round rod 302 is completely rotated into the hollow anchor rod 1, the outer wall of the tray 305 fits with the surrounding rock, and by connecting to the rock drill, the round rod 302 is driven to quickly stir the resin anchor 301.

[0034] Reference Figure 2-3 The inner wall of the connecting head 2 is provided with a protective structure 4, and the protective structure 4 includes a discharge plate 401 installed on the inner wall of the connecting head 2. A plurality of holes for the outflow of the resin anchor 301 are opened on the discharge plate 401, and a rotating rod 402 is rotatably connected to the inner wall of the discharge plate 401. The outer wall of the rotating rod 402 is provided with a first fan blade 403. The first fan blade 403 is used to block the holes opened in the discharge plate 401 to a certain extent, so as to prevent some gravel and debris from entering the connecting head 2 during operation, thereby affecting the outflow of the resin anchor 301.

[0035] A second fan blade 404 is installed on the side of the rotating rod 402 away from the first fan blade 403, and one end of the rotating rod 402 away from the first fan blade 403 is fixedly connected to the outer wall of the connecting rod 304, and the second fan blade 404 is located in the internal position of the connecting head 2. The second fan blade 404 and the first fan blade 403 are staggered, further improving the protection effect of the discharge plate 401, and during the rotation of the round rod 302, it drives the connecting rod 304 to rotate, and the connecting rod 304 drives the rotating rod 402 to rotate, and the rotating rod 402 drives the first fan blade 403 and the second fan blade 404 to rotate, which not only improves the stirring of the resin anchor 301 but also accelerates the outflow of the resin anchor 301.

[0036] Working principle:

[0037] The tunnel anchor support structure inserts the hollow anchor 1 of the connecting head 2 into the surrounding rock, and then aligns the round rod 302 with the connecting rod 304 and inserts it on the connecting rod 304. At this time, the rock drill is connected to the tray 305, and the rock drill drives the tray 305 and the round rod 302 to rotate. The round rod 302 drives the piercing rod 303 to move forward and pierce the resin anchor 301. Under the rotation of the round rod 302, the resin anchor 301 is fully mixed and flows out through the discharge plate 401, so that the resin anchor 301 fixes the hollow anchor 1 and the coal block. By fully mixing the resin anchor 301, the bonding strength between the hollow anchor 1 and the surrounding rock is effectively increased.

[0038] The tunnel anchor support structure also drives the connecting rod 304 to rotate when the round rod 302 rotates. The connecting rod 304 drives the first fan blade 403 and the second fan blade 404 to rotate, which not only accelerates the outflow and stirring effect of the resin anchor agent 301, but also effectively prevents the entry of debris due to the design of the fan blades.

[0039] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0040] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A tunnel anchor support structure, comprising a hollow anchor (1), characterized in that: A connector (2) is installed on the outer wall of the hollow anchor rod (1), and a fixing structure (3) is provided inside the hollow anchor rod (1); The inner wall of the connector (2) is provided with a protective structure (4); The fixing structure (3) includes a resin anchoring agent (301) arranged inside the hollow anchor rod (1), and the number of the resin anchoring agents (301) is equidistantly distributed at the inner center position of the hollow anchor rod (1). The inner wall of the hollow anchor rod (1) is movably connected to a round rod (302), and one end of the round rod (302) is in contact with the outer wall of the resin anchoring agent (301).

2. A tunnel anchor support structure according to claim 1, characterized in that: A connecting rod (304) is provided inside the hollow anchor rod (1), the outer wall of the connecting rod (304) is fixedly connected to the inner wall of the resin anchor (301), and the outer wall of the resin anchor (301) is not in contact with the inner wall of the hollow anchor rod (1).

3. A tunnel bolt support structure according to claim 2, characterized in that: The inner wall of the round rod (302) is inserted into the outer wall of the connecting rod (304), and a puncture rod (303) is installed at one end of the round rod (302) adjacent to the resin anchoring agent (301).

4. A tunnel anchor support structure according to claim 3, characterized in that: A tray (305) is installed at one end of the round rod (302) away from the puncture rod (303), and the outer wall of the tray (305) is in contact with the carrier.

5. The tunnel bolt support structure according to claim 1, characterized in that: The protective structure (4) includes a discharge plate (401) installed on the inner wall of the connecting head (2), the inner wall of the discharge plate (401) is rotatably connected to a rotating rod (402), and the outer wall of the rotating rod (402) is installed with a first fan blade (403).

6. A tunnel bolt support structure according to claim 5, characterized in that: A second fan blade (404) is installed on a side of the rotating rod (402) away from the first fan blade (403), and one end of the rotating rod (402) away from the first fan blade (403) is fixedly connected to the outer wall of the connecting rod (304).

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