Cam expansion type pipe seam anchor rod

Abstract

The utility model discloses a cam expansion type pipe seam anchor rod which comprises a high-strength inner thread outer pipe, a fastening lead screw is arranged on the right side of the high-strength inner thread outer pipe, a force exerting limiting ring is fixedly connected to the outer surface of the fastening lead screw, and a fastener is arranged on the right side of the fastening lead screw. According to the device, the wheel outlet hole, the auxiliary moving ring and the cam wheel bodies are arranged, the outer surface of each cam wheel body is in contact with the outer surface of the auxiliary moving ring, each cam wheel body is matched with the wheel outlet hole, and each cam wheel body cannot be separated from the interior of the wheel outlet hole, so that the cam wheel bodies can conveniently extend out of the wheel outlet hole; in addition, a force exerting limiting ring, a fastener, a fastening lead screw and a high-strength internal thread outer pipe are combined, the fastener is in threaded connection with the fastening lead screw, the fastening lead screw is in threaded connection with the high-strength internal thread outer pipe, the fastener can be conveniently detached, meanwhile, the fastening lead screw can conveniently push the cam wheel body to make close contact with the inner wall of the rock stratum, and loosening of the cam wheel body is avoided.

Description

Technical Field

[0001] The utility model relates to the field of anchor rods, in particular to a cam expansion type pipe seam anchor rod. Background Art

[0002] The pipe-slit anchor is a new type of anchor that is fully anchored and actively reinforces the surrounding rock. Its three-dimensional part is a high-strength steel pipe with a longitudinal slit. When installed in a borehole slightly smaller than the pipe diameter, it can immediately apply radial pressure to the hole wall over the entire length and friction to prevent the surrounding rock from sliding down. Combined with the supporting force of the anchor tray, the surrounding rock is placed in a three-dimensional stress state and the rock formation is stabilized.

[0003] The existing patent announcement number CN220226942U is a cam expansion type pipe seam anchor rod, but there are still certain defects in the above patent. First, its structure is complicated and its operation is inconvenient. Therefore, we propose a cam expansion type pipe seam anchor rod to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a cam expansion type pipe seam anchor rod to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cam expansion type pipe seam anchor comprises a high-strength internally threaded outer tube, a fastening screw is provided on the right side of the high-strength internally threaded outer tube, a force limiting ring is fixedly connected to the outer surface of the fastening screw, a fastener is provided on the right side of the fastening screw, a group of wheel outlet holes are opened on the outer surface of the high-strength internally threaded outer tube, an auxiliary moving ring is fixedly connected to the inner side wall of the high-strength internally threaded outer tube, and a group of cam wheel bodies are provided inside the high-strength internally threaded outer tube.

[0007] In a further embodiment, the high-strength internally threaded outer tube is matched with the fastening screw rod, and the fastener is matched with the fastening screw rod.

[0008] In a further embodiment, the outer surface of each cam wheel body contacts the outer surface of the auxiliary moving ring, and each cam wheel body is adapted to the wheel outlet hole.

[0009] In a further embodiment, the inner side wall of each wheel exit hole is fixedly connected with a fragile blocking plate, and the fragile blocking plate is made of plastic.

[0010] In a further embodiment, a vulnerable positioning plate is fixedly connected to the inner side wall of the high-strength internally threaded outer tube, and the right side surface of each cam wheel body is in contact with the left side surface of the vulnerable positioning plate.

[0011] In a further embodiment, an anti-corrosion ring is fixedly connected to the outer surface of the high-strength internally threaded outer tube, and the anti-corrosion ring is made of rubber.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is provided with a wheel exit hole, an auxiliary moving ring and a cam wheel body. The outer surface of each cam wheel body is in contact with the outer surface of the auxiliary moving ring, and each cam wheel body is adapted to the wheel exit hole, and each cam wheel body will not be separated from the inside of the wheel exit hole, so the cam wheel body can be easily extended from the wheel exit hole. In addition, in combination with a force limiting ring, a fastener, a fastening screw and a high-strength internally threaded outer tube, the fastener is threadedly connected to the fastening screw and the fastening screw is threadedly connected to the high-strength internally threaded outer tube, which can facilitate the disassembly of the fastener and at the same time make it convenient for the fastening screw to push the cam wheel body to be in close contact with the inner wall of the rock formation to prevent it from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a three-dimensional diagram of the tightening screw in the cam expansion pipe seam anchor.

[0015] Figure 2 It is a cross-sectional view of the front view of the high-strength internally threaded outer tube in the cam expansion type pipe seam anchor.

[0016] Figure 3 It is a side view of the tightening screw in the cam expansion pipe seam anchor.

[0017] Figure 4 Cam expansion type pipe seam anchor Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0018] In the figure: 1. High-strength internally threaded outer tube; 2. Tightening screw; 3. Force limit ring; 4. Fastener; 5. Wheel exit hole; 6. Auxiliary moving ring; 7. Cam wheel body; 8. Vulnerable positioning plate; 9. Anti-corrosion ring; 10. Vulnerable blocking plate. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model discloses a cam expansion pipe seam anchor rod, comprising a high-strength internally threaded outer tube 1, a fastening screw rod 2 is arranged on the right side of the high-strength internally threaded outer tube 1, and a force limiting ring 3 is fixedly connected to the outer surface of the fastening screw rod 2, and a fastener 4 is arranged on the right side of the fastening screw rod 2. By providing the fastener 4 and the force limiting ring 3, the cooperation of the fastener 4 and the force limiting ring 3 can be used to conveniently rotate the fastening screw rod 2 to push the cam wheel body 7, and at the same time, it is convenient to disassemble the fastener 4. A group of wheel exit holes 5 are opened on the outer surface of the high-strength internally threaded outer tube 1, and an auxiliary moving ring 6 is fixedly connected to the inner side wall of the high-strength internally threaded outer tube 1. A group of cam wheel bodies 7 are arranged inside the high-strength internally threaded outer tube 1. By providing the wheel exit holes 5, the auxiliary moving ring 6 and the cam wheel body 7, the outer surface of the cam wheel body 7 is in contact with the outer surface of the auxiliary moving ring 6 and is adapted to the wheel exit holes 5, so as to facilitate the extension of the cam wheel body 7 and prevent the cam wheel body 7 from being separated from the wheel exit holes 5.

[0023] The high-strength internally threaded outer tube 1 is adapted to the fastening screw 2, and the fastener 4 is adapted to the fastening screw 2. By adapting the high-strength internally threaded outer tube 1 to the fastening screw 2 and the fastener 4 to the fastening screw 2, the fastening screw 2 and the high-strength internally threaded outer tube 1 can be easily installed, and the fastener 4 and the fastening screw 2 can be easily disassembled. The outer surface of each cam wheel body 7 is in contact with the outer surface of the auxiliary moving circle 6, and each cam wheel body 7 is adapted to the wheel outlet hole 5. The outer surface of the wheel body 7 is in contact with the outer surface of the auxiliary movable circle 6, and each cam wheel body 7 is adapted to the wheel exit hole 5, which can facilitate the sliding of the cam wheel body 7 and allow the cam wheel body 7 to extend from the inside of the wheel exit hole 5 but not detach. The inner side wall of each wheel exit hole 5 is fixedly connected with a fragile blocking plate 10, and the fragile blocking plate 10 is made of plastic. By providing the fragile blocking plate 10, and the fragile blocking plate 10 is made of plastic, the cam wheel body 7 can be conveniently blocked and broken at the same time.

[0024] The inner wall of the high-strength internally threaded outer tube 1 is fixedly connected with a vulnerable positioning plate 8, and the right side surface of each cam wheel body 7 is in contact with the left side surface of the vulnerable positioning plate 8. By providing the vulnerable positioning plate 8 and the right side surface of each cam wheel body 7 is in contact with the left side surface of the vulnerable positioning plate 8, the right side surface of the cam wheel body 7 can be conveniently limited, and the outer surface of the high-strength internally threaded outer tube 1 is fixedly connected with an anti-corrosion ring 9, and the anti-corrosion ring 9 is made of rubber. By providing the anti-corrosion ring 9 and the anti-corrosion ring 9 is made of rubber, the outer surface of the high-strength internally threaded outer tube 1 can be conveniently protected to avoid corrosion.

[0025] The working principle of the utility model is:

[0026] First, connect the fastener 4 to the fastening screw 2 and rotate it until it contacts the force limit ring 3. At the same time, insert the fastening screw 2 into the high-strength internal threaded outer tube 1. At the same time, rotate the fastener 4 to make the fastening screw 2 close to the fragile positioning plate 8. Next, insert the high-strength internal threaded outer tube 1 into the position to be fixed. At the same time, continue to rotate the fastening screw 2 to break the fragile positioning plate 8 so that the cam wheel body 7 pierces the fragile blocking plate 10. Finally, the cam wheel body 7 penetrates the fragile blocking plate 10 and is in close contact with the inner wall of the hole. The above is the entire usage process of this equipment.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cam expansion type pipe seam anchor, characterized in that: The invention comprises a high-strength internally threaded outer tube (1), a fastening screw (2) is arranged on the right side of the high-strength internally threaded outer tube (1), a force limiting ring (3) is fixedly connected to the outer surface of the fastening screw (2), a fastener (4) is arranged on the right side of the fastening screw (2), a group of wheel outlet holes (5) are opened on the outer surface of the high-strength internally threaded outer tube (1), an auxiliary moving ring (6) is fixedly connected to the inner side wall of the high-strength internally threaded outer tube (1), and a group of cam wheel bodies (7) are arranged inside the high-strength internally threaded outer tube (1).

2. The cam expansion type pipe seam anchor according to claim 1, characterized in that: The high-strength internally threaded outer tube (1) is compatible with the fastening screw rod (2), and the fastener (4) is compatible with the fastening screw rod (2).

3. The cam expansion type pipe seam anchor according to claim 1, characterized in that: The outer surface of each cam wheel body (7) contacts the outer surface of the auxiliary moving ring (6), and each cam wheel body (7) is matched with the wheel outlet hole (5).

4. The cam expansion type pipe seam anchor according to claim 1, characterized in that: The inner side wall of each wheel exit hole (5) is fixedly connected with a fragile blocking plate (10), and the fragile blocking plate (10) is made of plastic material.

5. The cam expansion type pipe seam anchor according to claim 1, characterized in that: The inner side wall of the high-strength internally threaded outer tube (1) is fixedly connected to a vulnerable positioning plate (8), and the right side surface of each cam wheel body (7) is in contact with the left side surface of the vulnerable positioning plate (8).

6. The cam expansion type pipe seam anchor according to claim 1, characterized in that: An anti-corrosion ring (9) is fixedly connected to the outer surface of the high-strength internally threaded outer tube (1), and the anti-corrosion ring (9) is made of rubber material.

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