Mining visible laneway side displacement monitoring equipment

Abstract

The utility model relates to the technical field of underground engineering surrounding rock monitoring, in particular to mining visible laneway side displacement monitoring equipment, which comprises a mounting unit and a monitoring unit, the mounting unit comprises a mounting tray and an anchor hook, the monitoring unit comprises a measuring rope and a measuring cylinder, one end of the measuring rope is fixedly connected with the anchor hook, and the other end of the measuring rope is fixedly connected with the anchor hook. The other end of the measuring rod penetrates through the mounting tray and extends into the measuring cylinder; wherein the measuring cylinder is arranged on the side face of the mounting tray through a fixing structure, a supporting structure is arranged in the measuring cylinder, the supporting structure is connected with the measuring rope, and the supporting structure is matched with the measuring cylinder so as to conduct displacement visual monitoring on the measuring rope. When the roadway side displaces, the anchor hook generates coordinated deformation to pull the measuring rope to stretch out and draw back, and the indicating plate slides along with the measuring rope in the stretching-out and drawing-back process due to the fact that the measuring rope is in a tightened state, so that the displacement degree of the roadway side can be rapidly and preliminarily judged.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering surrounding rock monitoring technology, and in particular to a mine visual roadway displacement monitoring device. Background Technology

[0002] The sidewalls refer to the coal or rock walls on both sides of a mine roadway. They are an important part of the roadway structure. The main purpose of monitoring the displacement of the sidewalls is to understand the surface deformation and cross-sectional shrinkage of the surrounding rock, and to verify whether the support form and parameters are reasonable and the reliability of the support under the influence of mining.

[0003] Visual roadway side displacement monitoring equipment can be used to monitor the deformation of the roadway side. For example, Chinese Patent Publication No. CN112985211A discloses a roadway side displacement observation device, including a fixed tray, a cylindrical tube disposed on one side of the fixed tray, and a measuring rope cooperating with both. The fixed tray has a through hole communicating with the inner cavity of the cylindrical tube. One end of the cylindrical tube is fixedly connected to the fixed tray, and the other end has a tapered tube. The tapered tube has openings at both ends and is fitted onto the cylindrical tube. The measuring rope is disposed inside the cylindrical tube. One end of the measuring rope passes through the through hole and extends to the outside of the fixed tray, and the other end passes through the opening of the tapered tube and extends to the outside of the cylindrical tube, and is equipped with an anchor hook. This invention has a simple structure, is easy to operate, and has low cost. It can accurately display roadway surface displacement data, facilitates observation and recording by technicians, can be operated by a single person, and saves time and effort.

[0004] In practice, one end of the measuring rope is fixed to the bottom of the borehole by an anchor hook, while the other end is not secured. Manual labor is required to pull the rope taut periodically to check its length. This method does not allow for direct measurement of the rope's length, resulting in poor monitoring effectiveness and practicality. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies that cannot directly determine changes in the length of the measuring rope, and to propose a mine-use visual roadway displacement monitoring device.

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

[0007] Design a mine visual roadway displacement monitoring device, including an installation unit and a monitoring unit. The installation unit includes an installation tray and an anchor hook. The monitoring unit includes a measuring rope and a measuring cylinder. One end of the measuring rope is fixedly connected to the anchor hook, and the other end passes through the installation tray and extends into the measuring cylinder.

[0008] The measuring cylinder is fixedly mounted on the side of the mounting tray, and a support structure is provided inside the measuring cylinder. The support structure is connected to the measuring rope, and the support structure works with the measuring cylinder to visually monitor the displacement of the measuring rope.

[0009] Furthermore, a conical cylinder is fixedly connected to the midpoint on the other side of the mounting tray. Both the anchor hook and the conical cylinder are fixed inside the borehole in the roadway side. The mounting tray abuts against the roadway side. The midpoint of the mounting tray connects the conical cylinder and the measuring cylinder to form a through hole.

[0010] Furthermore, the fixing structure includes an annular portion disposed on the side of the mounting tray. One end of the measuring cylinder with an opening is movably inserted into the annular portion. Limiting grooves are provided on both sides of the outer wall of the measuring cylinder, and through grooves corresponding to the limiting grooves are formed on both sides of the annular portion.

[0011] Furthermore, it also includes an elastic limiting member, which has a U-shaped structure and its end is bent inward to form a backing portion. The backing portion abuts against the outer wall of the annular portion through the through groove, and the end of the elastic limiting member is placed in the limiting groove.

[0012] Furthermore, the support structure includes an indicator plate, on the periphery of one end of the measuring rope away from the anchor hook, the indicator plate is inserted, and the measuring rope at that end is knotted to form a knot, the indicator plate abuts against the knot and is slidably connected inside the measuring cylinder.

[0013] Furthermore, it also includes a compression spring, which is sleeved around the measuring rope, with its two ends abutting against the mounting tray and the indicator plate, respectively.

[0014] The present invention provides a mine roadway displacement monitoring device with the following advantages: The present invention includes an installation unit and a monitoring unit. One end of the measuring rope is fixed to the bottom of the roadway borehole by an anchor hook, and the other end is connected to an indicator plate through an installation tray. The indicator plate is slidably connected inside the measuring cylinder, and its two sides are respectively in contact with the compression spring and the knot. In this way, when the roadway displacement occurs, the anchor hook will deform in a coordinated manner to pull the measuring rope to extend and retract. Because the measuring rope is in a taut state, the indicator plate will slide along with it during the extension and retraction process. Then, the change in the length of the measuring rope can be directly observed through the measuring cylinder, thereby quickly making a preliminary judgment on the degree of roadway displacement. Attached Figure Description

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

[0016] Figure 2This is a cross-sectional view of the support structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0018] Figure 4 for Figure 3 A magnified structural diagram of area A.

[0019] In the diagram: 1. Installation unit; 11. Installation tray; 12. Anchor hook; 13. Conical cylinder; 2. Monitoring unit; 21. Measuring rope; 211. Knot; 22. Measuring cylinder; 3. Fixing structure; 31. Annular part; 311. Through groove; 32. Limiting groove; 33. Elastic limiting element; 34. Abutment part; 4. Support structure; 41. Indicator plate; 42. Compression spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 A mine visual roadway displacement monitoring device includes an installation unit 1 and a monitoring unit 2. The installation unit 1 includes an installation tray 11 and an anchor hook 12. The monitoring unit 2 includes a measuring rope 21 and a measuring cylinder 22. One end of the measuring rope 21 is fixedly connected to the anchor hook 12, and the other end passes through the installation tray 11 and extends into the measuring cylinder 22.

[0022] The measuring cylinder 22 is fixed to the side of the mounting tray 11 by the fixing structure 3. A support structure 4 is provided inside the measuring cylinder 22. The support structure 4 is connected to the measuring rope 21. The support structure 4 cooperates with the measuring cylinder 22 to perform visual monitoring of the displacement of the measuring rope 21.

[0023] In some embodiments, several wire barbs are fixedly connected to the periphery of the anchor hook 12 and the conical cylinder 13, and the anchor hook 12 and the conical cylinder 13 are fixed inside the borehole by the wire barbs.

[0024] Specifically, at the measurement point location, drill a hole longer than the anchor rod length, insert the end of the measuring rope 21 with the anchor hook 12 into the bottom of the hole using an anchor cable (or other tool), fix the anchor hook 12 with a wire barb, and then pull the measuring rope 21 forcefully until the anchor hook 12 is firmly stuck in the hole wall.

[0025] Furthermore, a conical cylinder 13 is fixedly connected to the midpoint on the other side of the mounting tray 11. Both the anchor hook 12 and the conical cylinder 13 are fixed inside the borehole in the roadway side. The mounting tray 11 abuts against the roadway side. The midpoint of the mounting tray 11 connects the conical cylinder 13 and the measuring cylinder 22 to form a through hole.

[0026] Specifically, the other end of the measuring rope 21 extends into the interior of the measuring cylinder 22 through a through hole.

[0027] Furthermore, the fixing structure 3 includes an annular portion 31, which is disposed on the side of the mounting tray 11. One end of the measuring cylinder 22 with an opening is movably inserted into the annular portion 31. Limiting grooves 32 are provided on both sides of the outer wall of the measuring cylinder 22. Through grooves 311 corresponding to the limiting grooves 32 are formed through both sides of the annular portion 31.

[0028] More specifically, it also includes an elastic limiting member 33, which has a U-shaped structure and its end is bent inward to form abutment portion 34. The abutment portion 34 abuts against the outer wall of the annular portion 31 through the through groove 311, and the end of the elastic limiting member 33 is placed in the limiting groove 32.

[0029] In this embodiment, the central groove of the annular portion 31 is adapted to the diameter of the measuring cylinder 22. The measuring cylinder 22 is inserted into the annular portion 31. When the limiting groove 32 corresponds to the through groove 311, the elastic limiting member 33 can be inserted. The elastic limiting member 33 abuts against the outer wall of the annular portion 31 through the abutting portion 34 to prevent detachment. When the end of the elastic limiting member 33 is placed in the limiting groove 32 and abuts against the limiting groove 32, the measuring cylinder 22 can be fixed and circumferentially locked.

[0030] It is worth mentioning that the elastic limiting member 33 is preferably made of a metal material with deformation capability, such as stainless steel. It has corrosion resistance and can also be engaged with the annular part 31 through elastic deformation.

[0031] In general, the support structure 4 includes an indicator plate 41, the indicator plate 41 is inserted around the end of the measuring rope 21 away from the anchor hook 12, and the measuring rope 21 is knotted to form a knot 211 at this end, the indicator plate 41 abuts against the knot 211 and is slidably connected inside the measuring cylinder 22.

[0032] Finally, it also includes a compression spring 42, which is sleeved around the measuring rope 21, with its two ends abutting against the mounting tray 11 and the indicator plate 41, respectively.

[0033] In this embodiment, one end of the measuring rope 21 is threaded through the through hole to install the mounting tray 11 and the measuring cylinder 22, and then knotted into a ball to form a knot 211 to prevent the indicator plate 41 from being unadjustable due to uneven drilling depth in the roadway side, which would cause the measuring rope 21 to not be taut.

[0034] Furthermore, the two ends of the indicator plate 41 are in contact with the compression spring 42 and the knot 211 respectively. When the roadway displacement traction anchor hook 12 and the measuring rope 21 move in coordination, the measuring rope 21 will pull the indicator plate 41 to move with it, so that the degree of roadway displacement can be preliminarily judged.

[0035] Furthermore, the measuring cylinder 22 is made of transparent material, and its outer wall is also equipped with a scale that can be seen directly;

[0036] Furthermore, the initial position of the indicator plate 41 should be in the middle of the measuring cylinder 22, and the indicator plate 41 should be in the state of compressing the spring 42 when it is in this position, so as to prevent the spring 42 from driving the indicator plate 41 to move backward when the anchor hook 12 moves backward.

[0037] Working method: During operation, at the measurement point location, drill a hole longer than the anchor rod length, insert the end of the measuring rope 21 with the anchor hook 12 into the bottom of the hole using an anchor cable (or other tool), fix the anchor hook 12 with a steel wire barb, and then pull the measuring rope 21 forcefully until the anchor hook 12 is firmly stuck in the hole wall. Then fix the conical cylinder 13 in the drilled hole. At this time, the installation tray 11 is in contact with the roadway side.

[0038] Then, after tightening the measuring rope 21, the measuring rope 21 is passed through the through hole and sequentially threaded through the conical cylinder 13, the mounting tray 11 and the measuring cylinder 22. Then, the measuring rope 21 is knotted at a suitable position to form a knot 211. The indicator plate 41 and the compression spring 42 are sequentially threaded around the periphery of the measuring rope 21.

[0039] The measuring cylinder 22 is inserted into the central groove of the annular portion 31. When the limiting groove 32 corresponds to the through groove 311, the elastic limiting member 33 can be inserted. The elastic limiting member 33 abuts against the outer wall of the annular portion 31 through the abutting portion 34 to prevent detachment. When the end of the elastic limiting member 33 is placed in the limiting groove 32 and abuts against the limiting groove 32, the measuring cylinder 22 can be fixed and circumferentially locked.

[0040] When the roadway side shifts, the traction anchor hook 12 and the measuring rope 21 move in coordination. The measuring rope 21 will pull the indicator plate 41 to move along with it, and the degree of roadway side displacement can be preliminarily judged in turn.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mine-use visual roadway displacement monitoring device, comprising an installation unit (1) and a monitoring unit (2), characterized in that: The installation unit (1) includes an installation tray (11) and an anchor hook (12), and the monitoring unit (2) includes a measuring rope (21) and a measuring cylinder (22). One end of the measuring rope (21) is fixedly connected to the anchor hook (12), and the other end passes through the installation tray (11) and extends into the measuring cylinder (22). The measuring cylinder (22) is fixed on the side of the mounting tray (11) by a fixing structure (3). A support structure (4) is provided inside the measuring cylinder (22). The support structure (4) is connected to the measuring rope (21). The support structure (4) cooperates with the measuring cylinder (22) to perform visual monitoring of the displacement of the measuring rope (21).

2. The mine visual roadway displacement monitoring device according to claim 1, characterized in that: A conical cylinder (13) is fixedly connected to the midpoint on the other side of the mounting tray (11). The anchor hook (12) and the conical cylinder (13) are both fixed inside the roadway side borehole. The mounting tray (11) abuts against the roadway side. The midpoint of the mounting tray (11) connects the conical cylinder (13) and the measuring cylinder (22) to form a through hole.

3. The mine visual roadway displacement monitoring device according to claim 1, characterized in that: The fixing structure (3) includes an annular part (31), which is disposed on the side of the mounting tray (11). One end of the measuring cylinder (22) with an opening is movably inserted into the annular part (31). Limiting grooves (32) are provided on both sides of the outer wall of the measuring cylinder (22). Through grooves (311) corresponding to the limiting grooves (32) are formed through both sides of the annular part (31).

4. A mine visual roadway displacement monitoring device according to claim 3, characterized in that: It also includes an elastic limiting member (33), which has a U-shaped structure and its end is bent inward to form abutment (34). The abutment (34) abuts against the outer wall of the annular part (31) through the through groove (311), and the end of the elastic limiting member (33) is placed in the limiting groove (32).

5. A mine visual roadway displacement monitoring device according to claim 1, characterized in that: The support structure (4) includes an indicator plate (41), the measuring rope (21) is provided with the indicator plate (41) at one end away from the anchor hook (12), and the measuring rope (21) is knotted at this end to form a knot (211), the indicator plate (41) abuts against the knot (211) and is slidably connected inside the measuring cylinder (22).

6. A mine visual roadway displacement monitoring device according to claim 5, characterized in that: It also includes a compression spring (42), which is sleeved around the measuring rope (21), and the two ends of the compression spring (42) abut against the mounting tray (11) and the indicator plate (41) respectively.

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