Integrated stress online monitoring station

Abstract

The utility model relates to an integrated stress on-line monitoring station. In order to overcome the defects in the prior art, the integrated stress on-line monitoring station comprises a mining stress meter, an integrated shell and a mining display instrument, the integrated shell comprises a front wall, a left side wall, a right side wall and a bottom wall, a light-operated display window is arranged on the front wall, a left plate frame and a right plate frame are arranged on the front wall on the two sides of the light-operated display window respectively, and the left plate frame and the right plate frame are arranged on the bottom wall. The lower edge of the left plate frame and the lower edge of the right plate frame are respectively provided with an inward flanging, a rear connecting plate is arranged between the left plate frame and the right plate frame, the mining display instrument is arranged among the front wall, the left plate frame, the right plate frame and the rear connecting plate, a display screen of the light-operated display directly faces a window of the light-operated display, and small C-shaped clamps are respectively arranged on the front wall on the outer sides of the left plate frame and the right plate frame. And the lower end of the pressure sensor 1 is clamped on the small C-shaped clamp on the same side. The integrated stress on-line monitoring station is simple in structure, convenient to install and suitable for being used in an underground coal mine.

Description

Technical Field

[0001] The utility model relates to an integrated on-line stress monitoring station. Background Art

[0002] Rock burst is a dynamic disaster in which coal and rock masses around mine roadways and stope are severely damaged due to the sudden release of elastic deformation energy under the action of mining disturbance. In essence, it is caused by the sudden release of a large amount of elastic energy. Therefore, as an important means to ensure safe mining, the monitoring and early warning of rock burst is of great significance. At present, the commonly used rock burst monitoring and early warning systems in coal mines mainly include two categories: on-line stress monitoring systems and microseismic monitoring systems.

[0003] The Chinese patent application for invention with the publication number CN 111691920 A, published on September 22, 2020, discloses a mine stress gauge, which includes a one-way cut-off three-way valve, a pressure guiding pipe, an oil bladder, and a pressure sensor. The one-way cut-off three-way valve includes a valve body, a valve core, and a spring. The first end of the valve body is a liquid injection end, and the end corresponding to the first end is the second end. The second end is a sensor connection end. Liquid flow channels are provided in both the first end and the second end. The part of the valve body cavity close to the first end is the first inner cavity, and the rest is the second inner cavity. The diameter of the first inner cavity is smaller than that of the second inner cavity. The valve core is arranged in the valve body cavity. The initial position of the valve core is in the first inner cavity. The valve core is sealed with the side wall of the first inner cavity, and there is a gap between the valve core and the side wall of the second inner cavity. The spring is located in the second inner cavity. One end of the spring is connected to the end of the valve core close to the second end, and the other end of the spring is connected to the side wall of the second inner cavity close to the second end. A third end is provided on the side wall of the valve body close to the second end. The liquid flow channel of the third end is communicated with the liquid flow channel of the second end. The first end is used to connect high-pressure liquid. The pressure sensor is connected to the second end. The pressure guiding pipe of the oil bladder is connected to the end of the third end and is communicated with the liquid flow channel of the third end.

[0004] This kind of mine stress gauge needs to be used together with a mine display instrument to form an on-line stress monitoring station through a mine communication cable. During use, both of them need to be fixed on the protective net on the side of the roadway. Affected by the unevenness of the roadway side, it is difficult to unify the relative position and spacing between the mine stress gauge and the mine display instrument. If the hanging position is not adjusted properly, it may cause discontinuous data transmission or no data due to the influence of the wireless signal receiving antenna by the coal walls on both sides; when installed at the bulging side, the display screen may face upward, while the display of the display instrument needs to face the light source directly to be displayed. After the display screen faces upward, it is inconvenient to view the data. When the fixed device is not used in the coal mining face, the display instrument, pressure transmitter, mine communication cable, etc. are directly hung on the coal wall. When moving the support, there is a risk of squeezing the display instrument, pressure transmitter or pulling the mine communication cable, resulting in false stress warnings. After the redundant mine communication cable is wound, it will also affect the signal. Summary of the Invention

[0005] The technical problem to be solved by the present utility model is how to overcome the above defects of the prior art and provide an integrated on-line stress monitoring station.

[0006] To solve the above technical problems, the integrated stress on-line monitoring station of the present utility model includes a mine stress gauge, which includes a pressure sensor 1, a three-way valve 2, a pressure guide pipe 3 and an oil bladder. The pressure sensor 1, the three-way valve 2 and the pressure guide pipe 3 are connected in sequence. Its characteristics are as follows: It also includes an integrated housing 4 and a mine display instrument 5. The mine display instrument 5 includes a light-controlled display, a transceiver antenna 51 and a mine communication cable interface 52. The integrated housing 4 includes a front wall 41, a left side wall 42, a right side wall 43 and a bottom wall 44. The above-mentioned front wall 41, left side wall 42, right side wall 43 and bottom wall 44 enclose an open box body with openings at the top and back. A light-controlled display window 45 is opened on the front wall 41. Left and right frame plates 6 and 7 are respectively provided on the front wall 41 on both sides of the light-controlled display window 45. Inward flanges 8 are respectively provided on the lower edges of the left frame plate 6 and the right frame plate 7. A rear connecting plate 46 is provided between the two. The mine display instrument 5 is arranged between the front wall 41, the left frame plate 42, the right frame plate 43 and the rear connecting plate 46. The display screen of the light-controlled display faces the light-controlled display window 45. The lower edges on both sides of the mine display instrument 5 are respectively pressed on the adjacent flanges 8. Small C-shaped clamps 10 are respectively provided on the front wall 41 between the left side wall 42 and the left frame plate 6 and on the front wall 41 between the right side wall 43 and the right frame plate 7. Two lower through holes 11 are opened on the bottom wall 44. The axis lines of the lower through holes 11 on the same side coincide with the axis line of the adjusting screw 9 below the three-way valve 2. Flanges 8 are respectively provided on the rear edges of the left side wall 42 and the right side wall 43. Open slots 12 are respectively opened on the left side wall 42 and its flange 8 and on the right side wall 43 and its flange 8. Hooks 13 are respectively provided on the flanges 8 of the left side wall and the flange 8 of the right side wall 43. One side or both sides of the mine display instrument 5 are provided with mine stress gauges. The lower end of its pressure sensor 1 is clamped on the small C-shaped clamp 10 on the same side. One end of the pressure guide pipe 3 is connected to the three-way valve 2, and the other end is led out from the adjacent open slot 12 and connected to the oil bladder in the borehole of the coal wall to be measured. The mine communication cable interface 52 is connected to the top end of the pressure sensor 1 through a mine communication cable 14.

[0007] For the mine stress gauge, refer to CN117869622A, and for the mine display instrument, refer to CN20295298U and CN101510798A.

[0008] With such a design, the mine stress gauge and the mine display instrument are both fixed in the integrated housing. The mine communication cable only needs to connect the mine stress gauge and the mine display instrument together in the integrated housing to form an integrated stress on-line monitoring station, which is convenient to install. Moreover, during the use process, the mine communication cable is not pulled. And it is possible to view the stress change on-site and also remotely monitor the stress change in real time.

[0009] As an optimization, a large C-shaped clamp 15 is further provided on the front wall 41 above each small C-shaped clamp 10. The axis lines of the large C-shaped clamps 15 on the same side coincide with the axis lines of the small C-shaped clamps 10, and the pressure sensor 1 is clamped within the large C-shaped clamp 15. With such a design, it is convenient to fix the pressure sensor.

[0010] The integrated stress on-line monitoring station of the present utility model has a simple structure and is convenient to install, and is suitable for use in coal mine shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further describes the integrated stress on-line monitoring station of the present utility model with reference to the drawings:

[0012] Figure 1 is a reverse three-dimensional structural schematic diagram of the integrated housing of the integrated stress on-line monitoring station of the present utility model;

[0013] Figure 2 is a rear-view structural schematic diagram of the integrated stress on-line monitoring station of the present utility model.

[0014] In the figures: 1 is a pressure sensor, 2 is a three-way valve, 3 is a pressure guiding pipe, 4 is an integrated housing, 5 is a mine-used display instrument, 51 is a transceiver antenna, 52 is a mine-used communication cable interface, 41 is a front wall, 42 is a left side wall, 43 is a right side wall, 44 is a bottom wall, 45 is a light control display window, 46 is a rear connecting plate, 6 is a left plate frame, 7 is a right plate frame, 8 is a flanging, 9 is an adjusting screw, 10 is a C-shaped clamp, 11 is a lower through hole, 12 is an opening groove, 13 is a hook, 14 is a mine-used communication cable, 15 is a large C-shaped clamp, and 16 is a lower retaining piece. SPECIFIC EMBODIMENTS

[0015] Embodiment 1: As Figure 1-2As shown in the figure, the integrated stress on-line monitoring station of the utility model comprises a mine stress gauge, which includes a pressure sensor 1, a three-way valve 2, a pressure guiding pipe 3 and an oil bladder (not shown in the figure). The pressure sensor 1, the three-way valve 2 and the pressure guiding pipe 3 are connected in sequence. It is characterized in that: it further comprises an integrated housing 4 and a mine display instrument 5. The mine display instrument 5 includes a light-controlled display (not shown in the figure), a transceiver antenna 51 and a mine communication cable interface 52. The integrated housing 4 includes a front wall 41, a left side wall 42, a right side wall 43 and a bottom wall 44. The above-mentioned front wall 41, left side wall 42, right side wall 43 and bottom wall 44 enclose an open box body with openings at the top and back. A light-controlled display window 45 is opened on the front wall 41. Left and right frame plates 6 and 7 are respectively arranged on the front wall 41 on both sides of the light-controlled display window 45. Inward flanges 8 are respectively arranged on the lower edges of the left frame plate 6 and the right frame plate 7. A rear connecting plate 46 is arranged between the two. The mine display instrument 5 is arranged between the front wall 41, the left frame plate 42, the right frame plate 43 and the rear connecting plate 46. The display screen of the light-controlled display faces the light-controlled display window 45. The lower edges on both sides of the mine display instrument 5 are respectively pressed on the adjacent flanges 8. Small C-shaped clamps 10 are respectively arranged on the front wall 41 between the left side wall 42 and the left frame plate 6 and on the front wall 41 between the right side wall 43 and the right frame plate 7. Two lower through holes 11 are opened on the bottom wall 44. The axis lines of the lower through holes 11 on the same side coincide with the axis line of the adjusting screw 9 below the three-way valve 2. Flanges 8 are respectively arranged on the rear edges of the left side wall 42 and the right side wall 43. Open slots 12 are respectively opened on the left side wall 42 and its flange 8 and on the right side wall 43 and its flange 8. Hooks 13 are respectively arranged on the flanges 8 of the left side wall and the right side wall 43. One side or both sides of the mine display instrument 5 are provided with mine stress gauges. The lower end of the pressure sensor 1 is clamped on the small C-shaped clamp 10 on the same side. One end of the pressure guiding pipe 3 is connected to the three-way valve 2, and the other end thereof is led out from the adjacent open slot 12 and is connected to the oil bladder in a borehole (not shown in the figure) of the coal wall to be measured. The mine communication cable interface 52 is connected to the top end of the pressure sensor 1 through a mine communication cable 14.

[0016] A large C-shaped clamp 15 is further arranged on the front wall 41 above each small C-shaped clamp 10. The axis line of the large C-shaped clamp 15 on the same side coincides with the axis line of the small C-shaped clamp 10. The pressure sensor 1 is clamped within the large C-shaped clamp 15.

[0017] A flange 8 is arranged at the rear of the bottom wall 44, and two lower retaining pieces 16 are further arranged on the flange 8. The mine communication cable 14 is blocked within the integrated housing 4 by the two lower retaining pieces 16.

Claims

1. Integrated stress on-line monitoring station, including a mine stress gauge, the mine stress gauge includes a pressure sensor (1), a three-way valve (2), a pressure guide pipe (3) and an oil bladder, the pressure sensor (1), the three-way valve (2), and the pressure guide pipe (3) are connected in sequence, and it is characterized in that: It also includes an integrated housing (4) and a mining display instrument (5). The mining display instrument (5) includes a light-controlled display, a transceiver antenna (51), and a mining communication cable interface (52). The integrated housing (4) includes a front wall (41), a left side wall (42), a right side wall (43), and a bottom wall (44). The above-mentioned front wall (41), left side wall (42), right side wall (43), and bottom wall (44) enclose an open box with openings at the top and back. A light-controlled display window (45) is opened on the front wall (41). Left and right frame plates (6) and (7) are respectively provided on the front wall (41) on both sides of the light-controlled display window (45). Inward flanges (8) are respectively provided on the lower edges of the left frame plate (6) and the right frame plate (7). A rear connecting plate (46) is provided between them. The mining display instrument (5) is arranged between the front wall (41), the left frame plate (6), the right frame plate (7), and the rear connecting plate (46). The display screen of the light-controlled display faces the light-controlled display window (45). The lower edges on both sides of the mining display instrument (5) are respectively pressed on the adjacent flanges (8). Small C-shaped clips (10) are respectively provided on the front wall (41) between the left side wall (42) and the left frame plate (6) and on the front wall (41) between the right side wall (43) and the right frame plate (7). Two lower through holes (11) are opened on the bottom wall (44). The axial lines of the lower through holes (11) on the same side coincide with the axial line of the adjusting screw (9) below the three-way valve (2). Flanges (8) are respectively provided on the rear edges of the left side wall (42) and the right side wall (43). Open slots (12) are respectively opened on the left side wall (42) and its flange (8) and on the right side wall (43) and its flange (8). Hooks (13) are respectively provided on the flanges (8) of the left side wall and the right side wall (43). A mining stress gauge is provided on one or both sides of the mining display instrument (5). The lower end of its pressure sensor (1) is clamped on the small C-shaped clip (10) on the same side. One end of the pressure guiding pipe (3) is connected to the three-way valve (2), and the other end is led out from the adjacent open slot (12) and connected to the oil bladder in the borehole of the coal wall to be measured. The mining communication cable interface (52) is connected to the top end of the pressure sensor (1) through a mining communication cable (14).

2. The integrated stress on-line monitoring station according to claim 1, wherein: A large C-shaped clip (15) is also provided on the front wall (41) above each small C-shaped clip (10). The axial line of the large C-shaped clip (15) on the same side coincides with the axial line of the small C-shaped clip (10). The pressure sensor (1) is clamped inside the large C-shaped clip (15).

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