Underground roadway surrounding rock deformation observation device

Abstract

The utility model discloses an underground roadway surrounding rock deformation observation device which comprises an iron plate base, an automatic telescopic rope box and a full-thread anchor rod cap, an installation sliding groove is formed in the iron plate base, the automatic telescopic rope box is installed on the iron plate base through a rope box base, and the telescopic direction of the automatic telescopic rope box can be adjusted; the full-thread anchor rod cap is installed on the edge of one side of the iron plate base, and a threaded hole of the full-thread anchor rod cap points to the outer side. According to the utility model, the structure is simple, the traditional stay wire arrangement mode of a cross point distribution method is improved, the operation is convenient, the hidden dangers of belt crossing and climbing during measurement are eliminated, the working time is saved, the observation working efficiency is improved, and a more reliable guarantee is provided for the safe construction and monitoring of a project; and the measuring line can be stored, so that on-site wiring is neater and more orderly, the risk of damage caused by disordered lines is reduced, the measuring line can be protected from being influenced by external environmental factors such as dust, moisture and collision, and the service life of the measuring line is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mine roadway measurement technology, specifically to a device for observing the deformation of surrounding rock in underground roadways. Background Technology

[0002] During tunnel excavation, engineering lines are needed to monitor the deformation of the surrounding rock. Currently, the commonly used method for monitoring tunnel rock deformation is the "cross" point method. When measuring the base points on the tunnel side and top, it is necessary to climb ladders and cross conveyor belts, which is difficult for one person to do. Usually, 2-3 people are needed to do the measurement together. The measurement data from different people will be different, with large errors and suspicion of falsification. This makes this method time-consuming and labor-intensive. Moreover, because it requires crossing conveyor belts and working at height, this work is inherently dangerous and has a large workload. At the same time, the engineering lines are exposed in the tunnel and are easily damaged, requiring dynamic maintenance. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology and solve the problems of easy damage and inconvenient operation of the observation rope for the deformation of surrounding rock in underground roadways, and to provide an observation device for the deformation of surrounding rock in underground roadways.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a deformation observation device for surrounding rock in underground roadways, including an iron plate base, an automatic telescopic rope box, and a fully threaded anchor bolt cap, wherein the iron plate base is provided with an installation groove, the automatic telescopic rope box is installed on the iron plate base through the rope box base, and its telescopic direction can be adjusted; the fully threaded anchor bolt cap is installed on one side edge of the iron plate base, and its threaded hole points outward.

[0005] Furthermore, the fully threaded anchor cap is detachably fixed to the iron plate base; a T-slot is provided on one side edge of the iron plate base, and an installation sleeve is welded and fixed at the lower end opening of the T-slot; an external thread is provided on the outer side wall of the top of the fully threaded anchor cap, and after the fully threaded anchor cap coaxially passes through the installation sleeve, its top end is connected and fixed by a fastening nut, and the fully threaded anchor cap and the installation sleeve can rotate relative to each other.

[0006] Furthermore, the inner diameter of the mounting sleeve is equal to the outer diameter of the fully threaded anchor bolt cap.

[0007] Furthermore, the fully threaded anchor bolt cap is directly fixed to the side of one edge of the iron plate base by welding.

[0008] Furthermore, the mounting groove on the iron plate base is arranged in a "+" shape, and the corners are smoothly chamfered; a support rod adapted to the mounting groove is fixedly installed at the bottom center of the rope box base. The lower end of the support rod is provided with external threads. After the support rod is slidably installed in the mounting groove, a positioning nut is fitted at its lower end.

[0009] Furthermore, the automatic telescopic rope box is fixedly installed in the rope box base by bolts. One side wall of the rope box base is provided with a rope groove, and the rope opening of the automatic telescopic rope box is directly opposite the rope groove on the rope box base.

[0010] Furthermore, the thickness of the iron plate base is 5mm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. As an important observation tool, this utility model has a simple structure, improves the traditional "cross-point layout" method of stringing, is easy to operate, eliminates the hidden dangers of crossing belts and climbing heights during measurement, saves working time, improves the efficiency of observation work, and provides a more reliable guarantee for the safe construction and monitoring of the project.

[0013] 2. This device can store measuring cables, making the on-site wiring neater and more orderly, reducing the risk of damage caused by messy cables, and protecting the measuring cables from external environmental factors such as dust, moisture, and impact, thus extending the service life of the measuring cables. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the iron plate base in this utility model;

[0016] Figure 3 This is an assembly diagram showing the relationship between the automatic telescopic rope box and the rope box base in this utility model.

[0017] Figure 4 This is a structural diagram illustrating another specific embodiment of the present invention;

[0018] In the diagram: 1. Iron plate base, 2. Automatic telescopic rope box, 3. Fully threaded anchor bolt cap, 4. Fastening nut, 5. Rope box base, 11. T-slot, 12. Installation slide, 13. Installation sleeve, 21. Rope opening, 51. Pull rope groove, 52. Support rod. Detailed Implementation

[0019] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "top", "coaxial", "bottom", and "center" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationship between the components in this utility model and do not specifically mean that any component in this utility model must have a specific orientation or be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] Example 1,

[0023] like Figures 1 to 3As shown, an underground roadway surrounding rock deformation observation device includes an iron plate base 1, an automatic telescopic rope box 2, and a fully threaded anchor bolt cap 3. The iron plate base 1 is made of 5mm thick iron plate and has a through-thickness installation groove 12. The installation groove 12 is arranged in a "cross" shape, and its inner corners are smoothly chamfered to ensure its guiding continuity. A T-shaped groove 11 is also provided on one side edge of the iron plate base 1, and an installation sleeve 13 is welded and fixed to the lower opening end of the "T" of the T-shaped groove 11. The aforementioned automatic telescopic rope box 2 is a telescopic steel wire rope box, which is installed on the iron plate base 1 via a rope box base 5. A support rod 52 perpendicular to its bottom surface is welded and fixed to the center of the bottom of the rope box base 5. The length of the support rod 52 is greater than the thickness of the iron plate base 1, and its lower end outer side wall is provided with external threads. The support rod 52 at the bottom of the rope box base 5 is slidably inserted into the mounting groove 12 on the iron plate base 1, and its lower end is threaded with a positioning nut for positioning and fixing the initial position of the rope box base 5. A pull rope groove 51 is also provided on one side wall of the rope box base 5. The aforementioned automatic telescopic rope box 2 is fixedly installed in the rope box base 5 by bolts, and its rope opening is directly opposite the pull rope groove 51, which facilitates the pulling out and retraction of the telescopic rope. The fully threaded anchor cap 3 is detachably installed in the mounting sleeve 13. The inner diameter of the mounting sleeve 13 is equal to the outer diameter of the fully threaded anchor cap 3, which facilitates the insertion and rotation of the fully threaded anchor cap 3. The shaft part of the fully threaded anchor cap 3 is inserted into the mounting sleeve 13 from the outside to the inside. The outer side wall of the top part of its shaft part is provided with external threads, which are fixed by threaded connection through fastening nut 4. The fastening nut 4 is placed in the transverse groove of the T-slot 11. The threaded hole of the fully threaded anchor cap 3 points to the outside of the iron plate base 1.

[0024] In use, first determine the location of the surrounding rock to be observed, adjust the initial measurement position of the automatic telescopic rope box 2 by sliding the rope box base 5, and then tighten it with the positioning nut; then fix the entire device to the dedicated surrounding rock anchor on the side or top by rotating the fully threaded anchor cap 3; then use a telescopic rod with a hook or a tape measure to hang the outer end of the telescopic rope of the automatic telescopic rope box 2, pull the wire rope out from the inside of the conveyor belt or the top plate, and then hang it on the surrounding rock anchor on the other side, and then carry out the measurement work. This method can quickly fix it in a suitable observation position, eliminate the hidden dangers of crossing the belt or climbing to a height during measurement, reduce the working risks of workers; and the operation is smooth and efficient. After the observation is completed, remove the outer end of the telescopic rope from the surrounding rock anchor on the other side. Taking advantage of the automatic telescopic rope box 2's ability to automatically adjust the rope length, it can be automatically retrieved, is not easily damaged, and can be reused.

[0025] The aforementioned fully threaded anchor cap 3 can be installed to anchor bolts at different locations. Simultaneously, the automatically retractable cable box 2, with its adjustable position, can be adjusted to different directions of retraction to accommodate observations at various locations.

[0026] Example 2,

[0027] like Figure 4 As shown, an underground roadway surrounding rock deformation observation device includes an iron plate base 1, an automatic telescopic rope box 2, and a fully threaded anchor bolt cap 3. The automatic telescopic rope box 2 is directly fixed to the iron plate base 1 by bolts, and the fully threaded anchor bolt cap 3 is directly fixed to the side of one edge of the iron plate base 1 by welding. The entire device is made of high-strength plastic and metal materials, and has good waterproof, dustproof and corrosion resistance. Its operating principle is the same as the method of use described in Embodiment 1 above, which reduces the observation risk and also serves to mark and locate the observation point, effectively improving the accuracy and reliability of the observation data.

[0028] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A device for observing the deformation of surrounding rock in underground roadways, characterized in that: It includes an iron plate base, an automatic telescopic rope box, and a fully threaded anchor bolt cap. The iron plate base is provided with an installation groove. The automatic telescopic rope box is installed on the iron plate base through the rope box base and its telescopic direction can be adjusted. The fully threaded anchor bolt cap is installed on one side edge of the iron plate base, and its threaded hole points outward.

2. The underground roadway surrounding rock deformation monitoring device according to claim 1, characterized in that: The fully threaded anchor cap is detachably fixed to the iron plate base; a T-slot is provided on one side edge of the iron plate base, and an installation sleeve is welded and fixed at the lower end opening of the T-slot; an external thread is provided on the outer side wall of the top of the fully threaded anchor cap, and after the fully threaded anchor cap coaxially passes through the installation sleeve, its top end is connected and fixed by a fastening nut, and the fully threaded anchor cap and the installation sleeve can rotate relative to each other.

3. The underground roadway surrounding rock deformation monitoring device according to claim 2, characterized in that: The inner diameter of the mounting sleeve is equal to the outer diameter of the fully threaded anchor bolt cap.

4. The underground roadway surrounding rock deformation monitoring device according to claim 1, characterized in that: The fully threaded anchor bolt cap is directly fixed to the side of one edge of the iron plate base by welding.

5. The underground roadway surrounding rock deformation monitoring device according to claim 1, characterized in that: The iron plate base is equipped with a cross-shaped sliding groove, and the corners are smoothly chamfered. A support rod that matches the sliding groove is fixedly installed at the bottom center of the rope box base. The lower end of the support rod is provided with external threads. After the support rod is slidably installed in the sliding groove, a positioning nut is fitted at its lower end.

6. The underground roadway surrounding rock deformation monitoring device according to claim 1, characterized in that: The automatic telescopic rope box is fixedly installed in the rope box base by bolts. One side wall of the rope box base is provided with a rope groove, and the rope opening of the automatic telescopic rope box is directly opposite the rope groove on the rope box base.

7. The underground roadway surrounding rock deformation monitoring device according to claim 1, characterized in that: The thickness of the iron plate base is 5mm.

Images