Mine tunnel deformation measuring device

Abstract

The utility model relates to the technical field of mine tunnel measuring equipment, and discloses a mine tunnel deformation measuring device, which comprises an ultrasonic transmitter, an ultrasonic receiver and a mounting rack, the top of the ultrasonic transmitter and the top of the ultrasonic receiver are respectively and fixedly provided with a connecting end, and the connecting ends are electrically connected with an external master controller through connecting wires. The mounting frame further comprises a fixed plate and two movable front plates, and a movable rear plate is fixedly mounted on the rear sides of the movable front plates. An ultrasonic transmitter and an ultrasonic receiver are installed in a mine tunnel through a fixing plate, and a connecting end is composed of the fixing plate, a movable front plate, a movable rear plate, a bottom plate, an adjusting knob, a second lug seat and the like. The mounting positions of the ultrasonic transmitter and the ultrasonic receiver and the relative mounting distance between the ultrasonic transmitter and the ultrasonic receiver can be accurately adjusted, and the adjusting knob is limited and fixed through the limiting screw, so that the ultrasonic transmitter and the ultrasonic receiver can be quickly adjusted.

Description

Technical Field

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

[0002] Mine road deformation is a common problem in coal mining, especially in the deep mine. As the mining activities go deeper, the roadway is affected by the mining and the increase of mine pressure, and begins to deform or even be damaged.

[0003] The main reasons for the deformation of the mine tunnel include complex geological conditions, soft rock formations, the influence of faults and broken zones, etc. In deep mining, due to the large burial depth and high rock stress, the tunnel surrounding rock is prone to plastic deformation and fissures, resulting in a decrease in tunnel stability. Therefore, it is necessary to monitor the deformation of the mine tunnel, such as the Chinese utility model patent disclosed by publication number CN221706417U: a coal mine underground tunnel surrounding rock deformation observation device, the application includes a first telescopic rod and a second telescopic rod, the tops of the first telescopic rod and the second telescopic rod are connected by a steel pipe, the bottoms of the first telescopic rod and the second telescopic rod are connected by an iron plate, the first telescopic rod is affixed with a first scale sticker on the side wall of the third section from top to bottom, and a first hollow scale is fixed on the side wall of the fourth section, and a first measuring probe is placed in the hollow of the first hollow scale. Although the application can read directly from the device without finding the center point O, it is impossible to achieve a real-time observation data feedback, so that the deformation of the mine tunnel cannot be effectively observed. Effective monitoring, therefore, another example is the Chinese utility model patent disclosed by the existing publication number CN202024746U: a mining tunnel cross-section deformation measuring device, which includes an explosion-proof shell fixed on one side of the coal rock body, and a single-chip microcomputer is arranged in the explosion-proof shell, and the single-chip microcomputer is respectively connected to an ultrasonic transducer transmitter, an ultrasonic transducer receiver and a temperature sensor fixed on the explosion-proof shell, and a USB interface connected to the single-chip microcomputer for transmitting data is arranged at the bottom of the explosion-proof shell, and a reflector is arranged on the other side of the coal rock body opposite to the explosion-proof shell, so as to realize real-time monitoring and feedback of the deformation of the mine tunnel, and the ultrasonic transceiver structure of the application is installed in the mine tunnel through the explosion-proof shell, and it is impossible to realize convenient calibration and adjustment of the installation height of the ultrasonic transceiver structure corresponding to the reflector. At the same time, because different mine tunnel deformation conditions require different spacings to obtain accurate data, the fixed spacing of the ultrasonic transceiver structure cannot flexibly respond to various deformation conditions, thereby affecting the accurate assessment of the stability of the mine tunnel and the formulation of subsequent prevention and control measures. Utility Model Content

[0004] The purpose of the utility model is to provide a mine tunnel deformation measurement device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A mine tunnel deformation measuring device comprises an ultrasonic transmitter, an ultrasonic receiver and a mounting frame, wherein the ultrasonic transmitter and the ultrasonic receiver are respectively fixedly mounted with connecting terminals on the top, and the connecting terminals are electrically connected to an external main controller via connecting lines, and the mounting frame also comprises a fixed plate and two movable front plates, a movable rear plate is fixedly mounted on the rear side of the movable front plate, bottom plates are respectively fixedly mounted on opposite sides of the two movable rear plates, adjustment knobs are respectively movably mounted on opposite sides of the two bottom plates, and the rear side of the movable rear plate is movably mounted on the front side of the fixed plate.

[0007] As a further preferred solution of the utility model, a plurality of first ear seats are fixedly installed on both sides of the fixing plate, and two L-shaped baffles are also fixedly installed on the front side of the fixing plate;

[0008] Based on this, after the fixed plate is fixed in the mine tunnel through the first ear seat and the fastener, two L-shaped baffles can be used to provide conditions for the movable installation of the movable rear plate.

[0009] As a further preferred solution of the present invention, second ear seats are fixedly installed at the center positions of the top and bottom of the fixing plate, and a first screw hole is opened in the second ear seat.

[0010] As a further preferred solution of the utility model, sliders are fixedly installed on both sides of the movable rear plate, a rotating hole is opened in the bottom plate, and the movable rear plate is installed between two L-shaped baffles through two sliders.

[0011] As a further preferred embodiment of the present invention, the adjusting knob is fixedly mounted with a fixing ring relative to one side of the corresponding bottom plate, a limiting ring is fixedly mounted on the top of the fixing ring, an adjusting screw is fixedly mounted on the middle of the adjusting knob, and the fixing ring is rotatably mounted in the rotating hole through the limiting ring, that is, the adjusting knob is rotatably mounted on the bottom of the bottom plate through the fixing ring and the limiting ring, and the adjusting screw is threadedly connected with the corresponding first screw hole;

[0012] Based on this, an adjusting knob is rotatably installed at the bottom of the base plate, and the adjusting screw is threadedly connected with the corresponding first screw hole, that is, the installation height and installation distance between the ultrasonic transmitter and the ultrasonic receiver are adjusted.

[0013] As a further preferred solution of the utility model, a second screw hole is provided in the adjusting knob, and a limit screw is threadedly connected in the second screw hole;

[0014] Based on this, a limit screw is connected to the inner thread of the adjusting knob, and after the installation position of the ultrasonic transmitter or the ultrasonic receiver is adjusted, the top of the limit screw is squeezed against the bottom of the base plate to achieve the limit fixation of the adjusting knob.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, an ultrasonic transmitter and an ultrasonic receiver are installed in a mine tunnel through a fixing plate, and a connecting end is composed of a fixing plate and a movable front plate, a movable rear plate, a bottom plate, an adjusting knob, a second ear seat and other components. The installation positions of the ultrasonic transmitter and the ultrasonic receiver and the relative installation spacing between the ultrasonic transmitter and the ultrasonic receiver can be accurately adjusted, and the adjusting knob is limited and fixed by a limiting screw, so that the ultrasonic transmitter and the ultrasonic receiver can be quickly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly structure of the mounting frame of the utility model;

[0019] Figure 3 This is a cross-sectional view of the movable rear plate and the adjusting knob of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the movable front plate and the movable rear plate of the utility model.

[0021] In the figure: 1. ultrasonic transmitter; 2. ultrasonic receiver; 3. mounting bracket; 4. connecting end; 5. fixing plate; 6. movable front plate; 7. movable rear plate; 8. bottom plate; 9. adjusting knob; 10. first ear seat; 11. L-shaped baffle; 12. second ear seat; 13. first screw hole; 14. slider; 15. rotating hole; 16. fixing ring; 17. limiting ring; 18. second screw hole; 19. limiting screw; 20. adjusting screw. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, a mine tunnel deformation measuring device provided by the utility model includes an ultrasonic transmitter 1, an ultrasonic receiver 2 and a mounting frame 3, wherein connecting terminals 4 are fixedly mounted on the top of the ultrasonic transmitter 1 and the ultrasonic receiver 2, and the connecting terminals 4 are electrically connected to an external main controller through a connecting line, and the mounting frame 3 also includes a fixed plate 5 and two movable front plates 6, a movable rear plate 7 is fixedly mounted on the rear side of the movable front plate 6, bottom plates 8 are fixedly mounted on the opposite sides of the two movable rear plates 7, adjusting knobs 9 are movably mounted on the opposite sides of the two bottom plates 8, and the rear side of the movable rear plate 7 is movably mounted on the front side of the fixed plate 5.

[0024] like Figure 2 As shown, a plurality of first ear seats 10 are fixedly installed on both sides of the fixed plate 5, and two L-shaped baffles 11 are also fixedly installed on the front side of the fixed plate 5. After the fixed plate 5 is fixed in the mine tunnel through the first ear seats 10 and fasteners, the two L-shaped baffles 11 can be used to provide conditions for the movable installation of the movable rear plate 7. Second ear seats 12 are fixedly installed at the top and bottom center positions of the fixed plate 5, and a first screw hole 13 is opened in the second ear seat 12.

[0025] like Figure 2-Figure 4 As shown, sliders 14 are fixedly installed on both sides of the movable rear plate 7, a rotating hole 15 is opened in the bottom plate 8, the movable rear plate 7 is inserted and installed between the two L-shaped baffles 11 through the two sliders 14, a fixing ring 16 is fixedly installed on the top of the adjusting knob 9, and a limiting ring 17 is fixedly installed on the top of the fixing ring 16. The adjusting knob 9 is fixedly installed on one side relative to the corresponding bottom plate 8, and the limiting ring 17 is fixedly installed on the top of the fixing ring 16. An adjusting screw 20 is fixedly installed in the middle of the adjusting knob 9, and the fixing ring 16 is rotatably installed in the rotating hole 15 through the limiting ring 17, that is, the adjusting knob 9 is rotatably installed on the bottom plate through the fixing ring 16 and the limiting ring 17. 8, the adjusting screw 20 is threadedly connected with the corresponding first screw hole 13, and an adjusting knob 9 is rotatably installed at the bottom of the bottom plate 8, and the adjusting screw 20 is threadedly connected with the corresponding first screw hole 13, that is, the installation height and installation spacing between the ultrasonic transmitter 1 and the ultrasonic receiver 2 can be adjusted. A second screw hole 18 is opened in the adjusting knob 9, and a limiting screw 19 is threadedly connected in the second screw hole 18. The limiting screw 19 is threadedly connected in the adjusting knob 9. After the installation position of the ultrasonic transmitter 1 or the ultrasonic receiver 2 is adjusted, the top of the limiting screw 19 is squeezed against the bottom of the bottom plate 8 to achieve the limiting fixation of the adjusting knob 9.

[0026] It should be noted that the utility model is a mine tunnel deformation measuring device. When adjusting the installation position or spacing of the ultrasonic transmitter 1 and the ultrasonic receiver 2, it is only necessary to rotate the two adjusting knobs 9 respectively, so that the adjusting knob 9 drives the fixing ring 16 to rotate in the rotating hole 15 of the corresponding bottom plate 8, so that the adjusting knob 9 drives the adjusting screw 20 to rotate in the corresponding first screw hole 13, and then the bottom plate 8 can drive the movable rear plate 7 to slide up or down between the two L-shaped baffles 11 with the help of two sliders 14, so as to cooperate with the movable front plate 6 to adjust the installation position of the ultrasonic transmitter 1 or the ultrasonic receiver 2. When the installation positions of the ultrasonic transmitter 1 and the ultrasonic receiver 2 are adjusted, the limit screw 19 is rotated in the second screw hole 18 with the help of a tool, so that one end of the second screw hole 18 is squeezed on the bottom plate 8, which can limit the axial movement of the adjusting knob 9, and then limit the axial movement of the adjusting screw 20, so that the movable rear plate 7 is fixed to the front side of the fixed plate 5. When the mine tunnel is deformed, and when the mine tunnel is deformed, the relative position of the reflector and the ultrasonic transmitter 1 and the ultrasonic receiver 2 will change, thereby affecting the measured value of the time difference. By continuously monitoring the change of this time difference, the deformation of the mine tunnel can be reflected in real time.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mine tunnel deformation measurement device, characterized in that: The invention comprises an ultrasonic transmitter (1), an ultrasonic receiver (2) and a mounting frame (3), wherein the ultrasonic transmitter (1) and the ultrasonic receiver (2) are respectively fixedly mounted with connection terminals (4) on their tops, and the connection terminals (4) are electrically connected to an external main controller via a connection line, and the mounting frame (3) further comprises a fixed plate (5) and two movable front plates (6), wherein a movable rear plate (7) is fixedly mounted on the rear side of the movable front plate (6), and bottom plates (8) are respectively fixedly mounted on the opposite sides of the two movable rear plates (7), and adjustment knobs (9) are respectively movably mounted on the opposite sides of the two bottom plates (8), and the rear side of the movable rear plate (7) is movably mounted on the front side of the fixed plate (5).

2. A mine tunnel deformation measurement device according to claim 1, characterized in that: A plurality of first ear seats (10) are fixedly mounted on both sides of the fixing plate (5), and two L-shaped blocking strips (11) are also fixedly mounted on the front side of the fixing plate (5).

3. A mine tunnel deformation measurement device according to claim 2, characterized in that: A second ear seat (12) is fixedly mounted at the top and bottom center positions of the fixing plate (5), and a first screw hole (13) is provided in the second ear seat (12).

4. A mine tunnel deformation measurement device according to claim 3, characterized in that: Slide blocks (14) are fixedly mounted on both sides of the movable rear plate (7), a rotation hole (15) is provided in the bottom plate (8), and the movable rear plate (7) is installed between two L-shaped blocking bars (11) by inserting the two slide blocks (14).

5. A mine tunnel deformation measurement device according to claim 4, characterized in that: The adjusting knob (9) is fixedly mounted with a fixing ring (16) on one side relative to the corresponding bottom plate (8); a limiting ring (17) is fixedly mounted on the top of the fixing ring (16); an adjusting screw (20) is fixedly mounted on the middle of the adjusting knob (9); the fixing ring (16) is rotatably mounted in the rotating hole (15) via the limiting ring (17); that is, the adjusting knob (9) is rotatably mounted on the bottom of the bottom plate (8) via the fixing ring (16) and the limiting ring (17); and the adjusting screw (20) is threadedly connected to the corresponding first screw hole (13).

6. A mine tunnel deformation measurement device according to claim 1, characterized in that: A second screw hole (18) is provided in the adjusting knob (9), and a limit screw (19) is threadedly connected to the second screw hole (18).

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