Self-stirring safety rope anchor rod

Abstract

The utility model discloses a self-stirring safety rope anchor rod, which comprises a hollow anchor rod and an extension indicating rope, a stirring fork is arranged at the head end of the hollow anchor rod, the stirring fork is used for puncturing an outer package of an anchoring agent in a drill hole and stirring the anchoring agent, a plug is arranged at the tail end of the hollow anchor rod, and the extension indicating rope is arranged in the plug. The first end of the extension indicating rope is fixedly connected to the end, located in the hollow anchor rod, of the stirring fork, the second end of the extension indicating rope movably penetrates through an inner cavity of the hollow anchor rod and the plug in sequence and then is reversely folded into the inner cavity of the hollow anchor rod, and the extension indicating rope moves along with extension deformation of the hollow anchor rod. The portion, in sliding fit with the plug, of the extension indicating rope is provided with an indicating mark. The self-stirring safety rope anchor rod can solve the problems that a conventional hollow anchor rod cannot directly pierce, stir and mix an anchoring agent, and the deformation degree of the anchor rod cannot be visually observed.

Description

Technical Field

[0001] This utility model relates to the field of rock and soil support technology, specifically to a self-stirring safety rope anchor. Background Technology

[0002] Hollow anchors, as core components for geotechnical engineering reinforcement, form an anchoring system by injecting anchoring agent into the gap between the anchor and the surrounding rock. However, their existing structure has obvious defects:

[0003] 1. The mixing and injection of anchoring agent rely on external equipment or other auxiliary rods for pre-mixing before the anchor rod is placed into the borehole. The process is separated and inefficient, especially in complex geological or confined space scenarios, the construction time is significantly increased.

[0004] 2. There is a lack of intuitive monitoring methods for the degree of extension. When checking the effectiveness of the anchor bolt in the later stage, it can usually only be determined by measuring the length outside the extension, which is inefficient and inconvenient. Utility Model Content

[0005] In view of this, this utility model proposes a self-mixing safety rope anchor to solve the problems of conventional hollow anchors that cannot be directly pierced and mixed with anchoring agent and that the degree of anchor deformation cannot be visually observed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-stirring safety rope anchor bolt includes a hollow anchor bolt and an extension indicator rope. The hollow anchor bolt has a stirring fork at its head end, used to puncture the outer packaging of the anchoring agent placed in the borehole and stir the anchoring agent. The hollow anchor bolt has a plug at its tail end. The first end of the extension indicator rope is fixed to the end of the stirring fork located inside the hollow anchor bolt. The second end of the extension indicator rope moves sequentially through the inner cavity of the hollow anchor bolt and the plug, then folds back into the inner cavity of the hollow anchor bolt. The extension indicator rope moves as the hollow anchor bolt extends and deforms. An indicator mark is provided on the part of the extension indicator rope that slides with the plug.

[0008] To better implement the above technical solution, optionally, the indicator mark includes a first color segment, a second color segment, and a third color segment, wherein the first color segment, the second color segment, and the third color segment respectively indicate that the hollow anchor is in the effective stage, the warning stage, and the failure stage.

[0009] Optionally, the tail end of the stirring fork is connected to the head end of the hollow anchor rod by means of a threaded connection.

[0010] Optionally, the head end of the plug is connected to the tail end of the hollow anchor rod by an interference fit.

[0011] Optionally, the plug has two spaced holes for the extension indicator rope to pass through, and the extension indicator rope passes through the two holes in sequence, so that the indicator mark of the extension indicator rope is exposed.

[0012] Optionally, the outer side of the plug is provided with an arc-shaped support groove for the extension indicator rope to be exposed and located between two rope holes, and the extension indicator rope forms a U-shaped exposed structure outside the plug.

[0013] Optionally, the hollow anchor rod may have external threads along its entire outer wall or at both ends.

[0014] Optionally, the hollow anchor bolt is provided with an anchor bolt lock nut on the outer wall of its tail end.

[0015] The beneficial effects of this utility model are:

[0016] During the installation of the self-mixing safety rope anchor bolt of this utility model, the mixing fork can directly penetrate the anchoring agent package pre-placed at the bottom of the borehole and simultaneously complete the mixing and blending of the anchoring agent. This effectively avoids the cumbersome process of processing the anchor bolt anchoring agent mixing head on the construction site, as well as the additional process of separately mixing the anchoring agent, significantly improving the installation efficiency and convenience of the hollow anchor bolt.

[0017] During the later stages of anchor bolt effectiveness testing, the degree of anchor bolt deformation extension can be determined by observing the exposed indicator marks on the extension indicator rope, thereby judging the effectiveness of the anchor bolt. The installation of the extension indicator rope establishes an intuitive and efficient anchor bolt effectiveness testing mechanism, which greatly simplifies the testing process and improves the convenience and accuracy of the testing work. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a self-stirring safety rope anchor rod according to Embodiment 1 of this utility model;

[0019] Figure 2 yes Figure 1 A sectional view;

[0020] Figure 3 yes Figure 1 Schematic diagram showing the connection between the center plug and the extension indicator rope;

[0021] Figure label:

[0022] Hollow anchor bolt 10, stirring fork 20, plug 30, rope hole 31, arc-shaped support groove 32, extension indicator rope 40, first color segment 41, second color segment 42, third color segment 43, anchor bolt lock nut 50. Detailed Implementation

[0023] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0024] Please see Figures 1 to 3 This utility model discloses a self-stirring safety rope anchor, which includes a hollow anchor 10, a stirring fork 20, a plug 30, and an extension indicator rope 40.

[0025] like Figure 1 As shown, the head end of the hollow anchor rod 10 is fixedly connected to the tail end of the stirring fork 20. The stirring fork 20 is used to puncture the outer packaging of the anchoring agent placed in the borehole and stir the anchoring agent. The tail end of the hollow anchor rod 10 is connected to a plug 30. The first end of the extension indicator rope 40 is fixed to the end of the stirring fork 20 located inside the hollow anchor rod 10. The second end of the extension indicator rope 40 passes through the inner cavity of the hollow anchor rod 10 and the plug 30 in sequence and then folds back to the inner cavity of the hollow anchor rod 10. The extension indicator rope 40 moves as the hollow anchor rod 10 extends and deforms. The extension indicator rope 40 has an indicator mark on the part that slides with the plug 30.

[0026] During the installation of the self-mixing safety rope anchor bolt in this embodiment of the utility model, the mixing fork 20 can directly penetrate the anchoring agent package pre-placed at the bottom of the borehole and simultaneously complete the mixing and blending of the anchoring agent. This effectively avoids the cumbersome process of processing the anchor bolt anchoring agent mixing head on the construction site, as well as the additional operation process of separately mixing the anchoring agent, significantly improving the installation efficiency and convenience of the hollow anchor bolt 10.

[0027] After the anchor bolt installation process is completed, the degree of anchor bolt deformation extension can be determined by observing the exposed indicator marks on the extension indicator rope 40, thereby judging the effectiveness of the anchor bolt. The setting of the extension indicator rope 40 establishes an intuitive and efficient anchor bolt effectiveness detection mechanism, which greatly simplifies the detection process and improves the convenience and accuracy of the detection work.

[0028] In the embodiments of this utility model, it should be noted that after the anchor is installed, under the long-term rock mass stress, the hollow anchor 10 undergoes ductile deformation due to pressure, and its length increases. Since the first end of the extension indicator rope 40 is a fixed end and the second end is a movable end that moves freely with the deformation of the anchor, when the anchor is axially extended, the reverse section of the extension indicator rope 40 undergoes reverse slippage due to the relative displacement of the two ends. This slippage process is visually transmitted through the indicator marks on the extension indicator rope 40, and the indicator marks indicating the degree of deformation of the hollow anchor 10 are gradually exposed and displayed.

[0029] In embodiments of this utility model, the indicator marks include a first color segment 41, a second color segment 42, and a third color segment 43. The first color segment 41, the second color segment 42, and the third color segment 43 respectively indicate that the hollow anchor bolt 10 is in the effective stage, the warning stage, and the failure stage. For example, the first color segment 41 is a green segment, the second color segment 42 is a yellow segment, and the third color segment 43 is a red segment. When the green segment is observed to be exposed from the plug 30, it indicates that the anchor bolt extension is in the effective stage. When the yellow segment is observed to be exposed from the plug 30, it indicates that the anchor bolt extension is in the warning stage. When the red segment is observed to be exposed from the plug 30, it indicates that the anchor bolt has failed and needs to be re-installed. Choosing color marks as indicator marks makes it easier to observe.

[0030] In the embodiments of this utility model, the tail end of the stirring fork 20 is connected to the head end of the hollow anchor rod 10 by means of internal and external thread screw connection. This connection method facilitates the connection between the stirring fork 20 and the hollow anchor rod 10, and the connection method has high stability.

[0031] In the embodiments of this utility model, the head end of the plug 30 is connected to the tail end of the hollow anchor rod 10 by an interference fit. The hollow anchor rod 10 and the plug 30 are connected by an insertion fit, which will not affect the extension indicator rope 40 during the installation process.

[0032] In an embodiment of this utility model, the plug 30 has two spaced-apart rope holes 31 for the extension indicator rope 40 to pass through. The extension indicator rope 40 passes through the two rope holes 31 in sequence, exposing the indicator mark of the extension indicator rope 40. Preferably, the outer side of the plug 30 is provided with an arc-shaped support groove 32 for the extension indicator rope 40 to be exposed and located between the two rope holes 31. The extension indicator rope 40 forms a U-shaped exposed structure outside the plug 30. The arc-shaped support groove 32 can increase the length of the exposed indicator mark, thereby improving the convenience of observation.

[0033] In the embodiments of this utility model, the hollow anchor rod 10 has external threads along its entire outer wall or at both ends. By increasing the effective contact area of ​​the thread profile, the mechanical interlocking force between the anchoring agent and the anchor rod is enhanced, thereby effectively improving the pull-out bearing capacity of the anchor rod and the rock mass interface.

[0034] In an embodiment of this utility model, an anchor bolt lock nut 50 is screwed onto the outer wall of the tail of the hollow anchor bolt 10. The anchor bolt lock nut 50 is sealed at the borehole opening. The pre-tightening force between the anchor bolt lock nut 50 and the rock mass at the borehole opening is used to effectively seal the anchoring agent, prevent the grout from overflowing during the grouting process, and ensure the quality of the anchoring construction.

[0035] The technical solution of this utility model has been described in detail above with reference to specific embodiments. The specific embodiments described are used to help understand the concept of this utility model. Derivations and modifications made by those skilled in the art based on the specific embodiments of this utility model also fall within the protection scope of this utility model.

Claims

1. A self-agitating safety line anchor comprising a hollow anchor rod (10), characterized in that: It also includes an extension indicator rope (40); The hollow anchor rod (10) is provided with a stirring fork (20) at its head end. The stirring fork (20) is used to puncture the outer packaging of the anchoring agent placed in the borehole and stir the anchoring agent. The hollow anchor rod (10) is provided with a plug (30) at its tail end. The first end of the extension indicator rope (40) is fixed to the end of the stirring fork (20) located inside the hollow anchor rod (10). The second end of the extension indicator rope (40) moves sequentially through the inner cavity of the hollow anchor rod (10) and the plug (30) and then folds back to the inner cavity of the hollow anchor rod (10). The extension indicator rope (40) moves as the hollow anchor rod (10) extends and deforms. The extension indicator rope (40) is provided with an indicator mark in the part that slides with the plug (30).

2. A self-agitating safety line anchor as claimed in claim 1, wherein, The indicator marks include a first color segment (41), a second color segment (42), and a third color segment (43), which respectively indicate that the hollow anchor rod (10) is in the effective stage, the warning stage, and the failure stage.

3. A self-agitating safety line anchor as claimed in claim 1, wherein, The tail end of the stirring fork (20) is connected to the head end of the hollow anchor rod (10) by means of a threaded pair.

4. A self-agitating safety line anchor as claimed in claim 1, wherein, The head end of the plug (30) is connected to the tail end of the hollow anchor rod (10) by an interference fit.

5. A self-agitating safety line anchor as claimed in claim 1, wherein, The plug (30) has two spaced rope holes (31) for the extension indicator rope (40) to pass through. The extension indicator rope (40) passes through the two rope holes (31) in sequence, so that the indicator mark of the extension indicator rope (40) is exposed.

6. A self-stirring safety rope anchor bolt according to claim 5, characterized in that, The plug (30) has an arc-shaped support groove (32) on its outer side for the extension indicator rope (40) to be exposed and located between two rope holes (31). The extension indicator rope (40) forms a U-shaped exposed structure outside the plug (30).

7. A self-stirring safety rope anchor bolt according to claim 1, characterized in that, The hollow anchor rod (10) has external threads on the entire outer wall or on both ends of the outer wall.

8. A self-stirring safety rope anchor bolt according to claim 1, characterized in that, The hollow anchor rod (10) is provided with an anchor rod lock nut (50) screwed on the outer wall of its tail.

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