Mine roadway deformation monitoring sensor

Abstract

The utility model belongs to the technical field of roadway monitoring, and particularly relates to a mine roadway deformation monitoring sensor which comprises a roadway bent arch, a sensor assembly is arranged in the roadway bent arch, the sensor assembly comprises an installation box, a sensor body is fixedly installed in the installation box, and a positioning sliding rod is fixedly installed on the inner side wall of the roadway bent arch. A plurality of positioning assemblies are arranged in the roadway bent arch, each positioning assembly comprises a sliding block, a sliding groove is formed in the side wall of each sliding block, an abutting rod is fixedly installed on the side wall face, close to a positioning sliding rod, of each sliding block, and an attaching plate is fixedly connected to the side wall of each abutting rod; according to the device, the sliding block is installed on the side wall of the positioning sliding rod in a sliding mode through the sliding groove, the attaching plate deforms and is attached to the inner side wall of the roadway bent arch, the position of the sliding block is fixed through friction force between the attaching plate and the roadway bent arch, and the sliding block can be conveniently installed; the problems that an existing installation process is tedious, and the labor intensity of workers is large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel monitoring, in particular to a mine tunnel deformation monitoring sensor. Background Art

[0002] Before the excavation of the road, the rock mass is in a certain stress balance state. After the excavation, the surrounding rock of the roadway undergoes unloading rebound and stress redistribution, and the stress state of the surrounding rock changes. Therefore, the rock mass on the free surface will first deform, slip, fracture, and fall off. Although the extrusion bearing capacity of the upper rock will be taken into consideration when designing the roadway tunnel, the above situation will inevitably occur in the roadway tunnel after a long period of accumulation. This situation cannot be observed with the naked eye, and serious consequences may have occurred by the time it is discovered. Staff are required to monitor the internal situation of the roadway in real time.

[0003] The Chinese patent publication number is CN205262453U, which discloses a tunnel convergence deformation monitoring device, including a monitoring component, a pull wire and a pull wire fixing seat. The monitoring component includes a fixed box body fixed at the tunnel bend, a box cover, and a data acquisition instrument, a stress sensor and a power module built into the fixed box body. One end of the pull wire is connected to the stress sensor in the fixed box body, and the other end of the pull wire is fixed to the tunnel bend through the pull wire fixing seat. The pull wire is tightened and fixed by a wire clip. When stress changes occur inside the tunnel bend, the stress sensor receives a signal, the data acquisition instrument collects data, and the data is stored in a data storage card. On the one hand, it can be connected and transmitted to a computer, and the tunnel convergence deformation coefficient can be determined through analysis software. The data can also be read through the data storage card. Data is collected once in a period of time, which can effectively monitor whether the tunnel rock formation is deformed and prevent accidents.

[0004] In the above-mentioned prior art solution, the stress sensor is arranged inside a fixed box body, and the fixed box body is fixed to the inner wall of the tunnel arch by bolts. During the actual installation process, multiple fixed shells need to be installed on the inner wall of the tunnel arch in sequence. The installation process is cumbersome and the labor intensity of the staff is high. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a mine tunnel deformation monitoring sensor, in which a sliding block is slidably installed on the side wall of a positioning slide rod through a sliding groove. Since the inner wall of the tunnel arch is in an arc shape, the inner wall of the tunnel arch will squeeze the bonding plate, causing the bonding plate to deform and fit with the inner wall of the tunnel arch. The position of the sliding block is fixed by the friction force between the bonding plate and the tunnel arch, which facilitates the installation of the sliding block.

[0006] The technical solution to achieve the purpose of the utility model is: a mine tunnel deformation monitoring sensor, including a tunnel arch, a sensor assembly is arranged inside the tunnel arch, the sensor assembly includes a mounting box with an open end, a sensor body is fixedly installed inside the mounting box, a positioning slide is fixedly installed on the inner wall of the tunnel arch, a plurality of positioning assemblies are arranged inside the tunnel arch, the positioning assembly includes a sliding block, a sliding groove is opened on the side wall of the sliding block, the sliding groove is slidably installed on the side wall of the positioning slide, the mounting box is fixedly installed on the side wall of the sliding block away from the sliding groove, a support rod is fixedly installed on the side wall of the sliding block close to the positioning slide, and a bonding plate is fixedly connected to the side wall of the support rod.

[0007] In some embodiments, a plurality of adjusting bolts are threadedly mounted on the side wall of the sliding block, a movable sleeve rod is fixedly mounted on one end of the plurality of adjusting bolts close to the bonding plate, the movable sleeve rod is rotatably mounted on the side wall of the moving ball, an adjusting rotating rod is arranged between two adjacent adjusting gears, and adjusting gears are fixedly mounted on the side walls of the two adjacent adjusting gears and the adjusting rotating rod.

[0008] In some embodiments, the adjusting rotating rod is rotatably mounted on the side wall of the sliding block, and three adjusting gears on the same side are meshed with each other.

[0009] In some embodiments, the top end of the movable sleeve rod is spherical.

[0010] In some embodiments, a sealing cover is snapped onto the upper opening of the installation box.

[0011] In some embodiments, a plurality of movable balls are rotatably mounted at equal intervals on the side wall of the bonding plate.

[0012] Compared with the prior art, the utility model has the following significant advantages:

[0013] First, the utility model slides the sliding block onto the side wall of the positioning slide rod through a sliding groove. Since the inner wall of the tunnel arch is arc-shaped, the inner wall of the tunnel arch will squeeze the bonding plate, causing the bonding plate to deform and fit with the inner wall of the tunnel arch. The position of the sliding block is fixed by the friction between the bonding plate and the tunnel arch, which facilitates the installation of the sliding block. This solves the problem of complicated installation process and high labor intensity of workers in the existing installation process.

[0014] Second, in the utility model, the three adjusting gears rotate synchronously, the adjusting bolts adjust their positions as they rotate, and the fitting plate fits more closely with the inner wall of the tunnel arch as the positions of the adjusting bolts are adjusted, thereby achieving the effect of improving the position stability of the sliding block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the installation position of the mine tunnel deformation monitoring sensor of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the sliding block of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the installation box of the utility model.

[0019] Description of reference numerals:

[0020] 1. Tunnel arch; 2. Positioning slide bar; 3. Positioning assembly; 31. Sliding block; 32. Sliding groove; 33. Abutment rod; 34. Laminating plate; 35. Movable sleeve rod; 36. Moving ball; 37. Adjusting bolt; 38. Adjusting gear; 39. Adjusting rotating rod; 4. Sensor assembly; 41. Mounting box; 42. Sealing cover; 43. Sensor body. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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] The utility model provides a mine tunnel deformation monitoring sensor through improvement. The technical solution of the utility model is:

[0023] like Figure 1 - Figure 3As shown, a mine tunnel deformation monitoring sensor includes a tunnel arch 1, a sensor assembly 4 is arranged inside the tunnel arch 1, the sensor assembly 4 includes a mounting box 41 with an opening at one end, a sensor body 43 is fixedly installed inside the mounting box 41, a sealing cover 42 is clamped at the opening of the mounting box 41, a positioning slide bar 2 is fixedly installed on the inner side wall of the tunnel arch 1, a plurality of positioning assemblies 3 are arranged inside the tunnel arch 1, the positioning assembly 3 includes a sliding block 31, a sliding groove 32 is opened on the side wall of the sliding block 31, the sliding groove 32 is slidably installed on the side wall of the positioning slide bar 2, and the mounting box 41 is fixedly installed on the sliding block 31 On the side wall away from the sliding groove 32, a side wall of the sliding block 31 close to the positioning slide rod 2 is fixedly installed with a push rod 33, and a fitting plate 34 is fixedly connected to the side wall of the push rod 33, and the fitting plate 34 is made of elastic metal material; the sliding block 31 is slidably installed on the side wall of the positioning slide rod 2 through the sliding groove 32, and since the inner wall of the tunnel arch 1 is arc-shaped, the inner wall of the tunnel arch 1 will squeeze the fitting plate 34, causing the fitting plate 34 to deform and fit with the inner wall of the tunnel arch 1, and the position of the sliding block 31 is fixed by the friction between the fitting plate 34 and the tunnel arch 1, so that the installation of the sliding block 31 is convenient.

[0024] like Figure 2 As shown, in one embodiment, in order to facilitate the movement of the position of the installation box 41, a plurality of movable balls 36 are equidistantly rotatably installed on the side wall of the bonding plate 34; when the position of the sliding block 31 is moved along the positioning slide bar 2, the movable balls 36 will roll, reducing the friction force when the bonding plate 34 moves, so as to facilitate the adjustment of the position of the installation box 41, and a plurality of adjusting bolts 37 are threadedly installed on the side wall of the sliding block 31, and a movable sleeve rod 35 is fixedly installed on one end of the plurality of adjusting bolts 37 close to the bonding plate 34, and the top of the movable sleeve rod 35 is spherical, and the movable sleeve rod 35 is rotatably installed on the movable ball On the side wall of 36, an adjusting rotating rod 39 is arranged between two adjacent adjusting gears 38, and the adjusting rotating rod 39 is rotatably mounted on the side wall of the sliding block 31, and the adjusting gears 38 are fixedly mounted on the side walls of the two adjacent adjusting gears 38 and the adjusting rotating rod 39, and the three adjusting gears 38 on the same side are meshed with each other; by rotating the adjusting rotating rod 39, the three adjusting gears 38 rotate synchronously, and the adjusting bolt 37 adjusts its position as it rotates, and the fitting plate 34 fits more closely with the inner wall of the tunnel arch 1 as the position of the adjusting bolt 37 is adjusted, thereby achieving the effect of improving the position stability of the sliding block 31.

[0025] The specific working method is: the sliding block 31 is slidably installed on the side wall of the positioning slide rod 2 through the sliding groove 32. Since the inner wall of the tunnel arch 1 is in an arc shape, the inner wall of the tunnel arch 1 will squeeze the bonding plate 34, causing the bonding plate 34 to deform and fit with the inner wall of the tunnel arch 1. The position of the sliding block 31 is fixed by the friction between the bonding plate 34 and the tunnel arch 1, which is convenient for the installation of the sliding block 31 and the sensor body 43 to detect the inner wall of the tunnel arch 1; by rotating the adjusting rotating rod 39, the three adjusting gears 38 rotate synchronously, and the adjusting bolt 37 adjusts its position as it rotates. As the position of the adjusting bolt 37 is adjusted, the bonding plate 34 fits more closely with the inner wall of the tunnel arch 1, thereby achieving the effect of improving the position stability of the sliding block 31.

[0026] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A mine tunnel deformation monitoring sensor, comprising a tunnel arch (1), a sensor assembly (4) being arranged inside the tunnel arch (1), the sensor assembly (4) comprising a mounting box (41) with an opening at one end, a sensor body (43) being fixedly mounted inside the mounting box (41), characterized in that: A positioning slide bar (2) is fixedly installed on the inner side wall of the tunnel arch (1), and a plurality of positioning components (3) are arranged inside the tunnel arch (1). The positioning components (3) include a sliding block (31), a sliding groove (32) is opened on the side wall of the sliding block (31), and the sliding groove (32) is slidably installed on the side wall of the positioning slide bar (2). The installation box (41) is fixedly installed on a side wall of the sliding block (31) away from the sliding groove (32), and a support rod (33) is fixedly installed on a side wall of the sliding block (31) close to the positioning slide bar (2), and a bonding plate (34) is fixedly connected to the side wall of the support rod (33).

2. A mine tunnel deformation monitoring sensor according to claim 1, characterized in that: A plurality of adjusting bolts (37) are threadedly mounted on the side wall of the sliding block (31); a movable sleeve rod (35) is fixedly mounted on one end of the plurality of adjusting bolts (37) close to the bonding plate (34); the movable sleeve rod (35) is rotatably mounted on the side wall of the movable ball (36); an adjusting rotating rod (39) is arranged between two adjacent adjusting gears (38); and an adjusting gear (38) is fixedly mounted on the side walls of the two adjacent adjusting gears (38) and the adjusting rotating rod (39).

3. A mine tunnel deformation monitoring sensor according to claim 2, characterized in that: The adjusting rotating rod (39) is rotatably mounted on the side wall of the sliding block (31), and the three adjusting gears (38) on the same side are meshed with each other.

4. A mine tunnel deformation monitoring sensor according to claim 2, characterized in that: The top end of the movable sleeve rod (35) is in a spherical shape.

5. The mine tunnel deformation monitoring sensor according to claim 1, characterized in that: A sealing cover (42) is clamped on the upper opening of the installation box (41).

6. A mine tunnel deformation monitoring sensor according to claim 1, characterized in that: A plurality of movable balls (36) are rotatably mounted at equal intervals on the side wall of the bonding plate (34).

Images