Underground in-situ rock burst monitoring and sensing device

Abstract

The utility model discloses an underground in-situ rock burst monitoring sensing device, which relates to the technical field of rock burst monitoring and comprises a supporting mechanism and a monitoring box, the supporting mechanism consists of an adjusting rod and a strut, a pressure monitoring mechanism is mounted at the upper end of the adjusting rod, the upper end of the adjusting rod extends into the monitoring box, and the pressure monitoring mechanism is mounted on the strut. A grating displacement sensor is installed at the upper end of the section, located in the monitoring box, of the adjusting rod, guide mechanisms are installed on the two sides of the grating displacement sensor, and grating glass is installed at the position, corresponding to the grating displacement sensor, in the monitoring box. In the monitoring process, the pressure monitoring mechanism can monitor the pressure borne by the supporting mechanism in real time, the change of the borne pressure can be monitored in the first time, and meanwhile, when the roadway is impacted, the displacement is monitored through the grating displacement sensor and grating glass in the monitoring box, so that the roadway impact is monitored. And alertness can be given at the first time, and monitoring is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of ground pressure monitoring, and specifically relates to an underground in-situ impact ground pressure monitoring sensor perception device. Background Art

[0002] Impact ground pressure, also known as rock burst, is one of the typical dynamic disasters in coal mining. It usually occurs when the coal-rock mechanical system reaches its ultimate strength, and the elastic energy is released suddenly, sharply and violently, resulting in instantaneous destruction of the coal-rock layer accompanied by the impact of coal powder and rock, causing damage to the shaft and tunnel and personal injury accidents, so monitoring is needed.

[0003] Chinese patent number CN202320657111.4 discloses a coal mine impact ground pressure monitoring device, including a strain gauge and a tensioning assembly, the outer wall of the strain gauge has a first limit groove on both sides; the tensioning assembly includes an arc-shaped pushing valve shell that embraces the outer sides of the strain gauge and is coaxial with the strain gauge, a top pressure airbag facing the first limit groove is installed on the inner side of the arc-shaped pushing valve shell, the inner side of the top pressure airbag is abutted against a pressure plate embedded in the inner side of the first limit groove, and positioning assemblies that are telescopically connected to the outer wall of the strain gauge are installed at both ends of the inner side of the arc-shaped pushing valve shell.

[0004] The utility model is very inconvenient to install during use, and the types of monitoring are relatively single, so errors are prone to occur during long-term use.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an underground in-situ rock burst monitoring sensor device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A sensing device for monitoring in-situ rock impact pressure underground comprises a supporting mechanism and a monitoring box, wherein the supporting mechanism consists of an adjusting rod and a pillar, the bottom end of the adjusting rod is rotatably mounted at the upper end of the pillar, a base is rotatably mounted at the bottom end of the pillar, a pressure monitoring mechanism is mounted at the upper end of the adjusting rod, the upper end of the adjusting rod extends into the interior of the monitoring box, a grating displacement sensor is mounted at the upper end of the adjusting rod located inside the monitoring box, guiding mechanisms are mounted on both sides of the grating displacement sensor, the guiding mechanism is mounted inside the monitoring box, and grating glass is mounted at a position corresponding to the grating displacement sensor inside the monitoring box.

[0009] Optionally, rubber pads are provided at the upper end of the top plate and the lower end of the base, and the rubber pads are adhered to the upper end of the top plate and the lower end of the base by adhesive.

[0010] Optionally, a fixing bolt is provided at one side of the upper end of the pillar, and the fixing bolt is rotatably installed at one side of the upper end of the pillar.

[0011] Optionally, a limit plate is provided at the bottom end of the inner section of the adjusting rod, and the limit plate is welded to the bottom end of the pillar.

[0012] Optionally, the pressure monitoring mechanism is composed of a pressure sensor and a wire, the pressure sensor is installed at the upper end of the adjustment rod, and the wire is installed at one side of the pressure sensor.

[0013] Optionally, the guiding mechanism is composed of a sliding sleeve, a guide rod and a spring. The guide rod is installed inside the monitoring box at both sides of the grating displacement sensor, the sliding sleeve is installed on both sides of the grating displacement sensor, the sliding sleeve is slidably installed on the upper side of the guide rod, a damping sleeve is installed inside the sliding sleeve, and the spring is installed on the guide rod at the upper end of the sliding sleeve.

[0014] Optionally, a damping sleeve is installed inside the sliding sleeve, and the damping sleeve is slidably installed on the upper side of the guide rod.

[0015] Optionally, cross bars are installed on both sides of the bottom end of the pillar, and a handle is installed at the bottom end of the adjustment rod.

[0016] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0017] 1. During the monitoring process, the pressure monitoring mechanism can monitor the pressure on the supporting mechanism in real time, and can monitor the changes in pressure at the first time. At the same time, when an impact occurs in the tunnel, the displacement is monitored between the grating displacement sensor and the grating glass inside the monitoring box, which can alert the user at the first time and facilitate monitoring.

[0018] 2. The setting of the fixing bolt is used to increase the friction between the support and the adjusting rod to avoid slipping between the support and the adjusting rod during use.

[0019] 3. When the pressure monitoring mechanism is in use, the pressure received by the supporting mechanism is monitored through the pressure sensor, and the monitored information is transmitted through the wire.

[0020] 4. When the guide mechanism is in use, the sliding sleeve moves along the guide rod to limit the range of motion of the pressure sensor. At the same time, the elastic force of the spring supports the pressure sensor during use, which facilitates the installation of the equipment.

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of an embodiment of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Support mechanism; 2. Base; 3. Crossbar; 4. Pillar; 5. Handle; 6. Adjustment rod; 7. Pressure monitoring mechanism; 8. Monitoring box; 9. Top plate; 10. Rubber pad; 11. Grating displacement sensor; 12. Pressure sensor; 13. Wire; 14. Guide rod; 15. Guide mechanism; 16. Spring; 17. Grating glass; 18. Limit plate; 19. Sliding sleeve; 20. Damping sleeve; 21. Fixing bolt.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The utility model will now be described in further detail with reference to the accompanying drawings.

[0031] See also Figure 1-4 As shown, in this embodiment, an underground in-situ impact rock pressure monitoring sensor perception device is provided, including a supporting mechanism 1 and a monitoring box 8, the supporting mechanism 1 is composed of an adjusting rod 6 and a pillar 4, the bottom end of the adjusting rod 6 is rotatably installed at the upper end position of the pillar 4, the bottom end of the pillar 4 is rotatably installed with a base 2, the upper end of the adjusting rod 6 is installed with a pressure monitoring mechanism 7, the upper end of the adjusting rod 6 extends into the monitoring box 8, the adjusting rod 6 is located at the upper end position of the inner section of the monitoring box 8, a grating displacement sensor 11 is installed at the upper end position, the grating displacement sensor 11 is installed on both sides of the grating displacement sensor 11, the guide mechanism 15 is installed in the monitoring box 8, and a grating glass 17 is installed in the monitoring box 8 at a corresponding position corresponding to the grating displacement sensor 11.

[0032] One aspect of the application of this embodiment is: when in use, the grating displacement sensor 11 and the support mechanism 1 are installed. During installation, the base 2 and the top plate 9 respectively contact the upper and lower ends of the tunnel. When the height of the support mechanism 1 needs to be adjusted, the pillar 4 can be rotated. When the pillar 4 rotates, it can drive the adjustment rod 6 to rotate into or out of the pillar 4 through the action of the threaded ring, so that the height of the support mechanism 1 can be adjusted. During the monitoring process, the pressure monitoring mechanism 7 can monitor the pressure on the support mechanism 1 in real time, and can monitor the change of pressure at the first time. At the same time, when an impact occurs in the tunnel, the displacement is monitored between the grating displacement sensor 11 and the grating glass 17 inside the monitoring box 8, which can be alerted at the first time and facilitate monitoring.

[0033] In this embodiment, rubber pads 10 are provided at the upper end of the top plate 9 and the bottom end of the base 2. The rubber pads 10 are adhered to the upper end of the top plate 9 and the bottom end of the base 2 by adhesive. The rubber pads 10 are relatively soft. When the upper end of the top plate 9 and the bottom end of the base 2 are in contact with the tunnel, the rubber pads 10 will be compressed and deformed to fill the gap between the top plate 9 and the base 2 and the tunnel, so that the equipment installation is more stable.

[0034] In this embodiment, a fixing bolt 21 is provided at one side of the upper end of the pillar 4. The fixing bolt 21 is rotatably installed at one side of the upper end of the pillar 4. The setting of the fixing bolt 21 is used to increase the friction between the pillar 4 and the adjusting rod 6 to avoid slipping between the pillar 4 and the adjusting rod 6 during use.

[0035] In this embodiment, a limit plate 18 is provided at the bottom end of the inner section of the adjusting rod 6 at the pillar 4. The limit plate 18 is welded to the bottom end of the pillar 4. The limit plate 18 is provided to limit the range of movement of the adjusting rod 6 to avoid the adjusting rod 6 from detaching from the pillar 4 during use.

[0036] In this embodiment, the pressure monitoring mechanism 7 is composed of a pressure sensor 12 and a wire 13. The pressure sensor 12 is installed at the upper end of the adjusting rod 6, and the wire 13 is installed at one side of the pressure sensor 12. When the pressure monitoring mechanism 7 is in use, the pressure received by the supporting mechanism 1 is monitored through the pressure sensor 12, and the monitored information is transmitted through the wire 13.

[0037] In this embodiment, the guide mechanism 15 is composed of a sleeve 19, a guide rod 14 and a spring 16. The guide rod 14 is installed inside the monitoring box 8 at both sides of the grating displacement sensor 11. The sleeve 19 is installed at both sides of the grating displacement sensor 11. The sleeve 19 is slidably installed on the upper side of the guide rod 14. A damping sleeve 20 is installed inside the sleeve 19. The spring 16 is installed on the guide rod 14 at the upper end of the sleeve 19. When the guide mechanism 15 is in use, the sleeve 19 moves along the guide rod 14 to limit the range of movement of the pressure sensor 12. At the same time, the pressure sensor 12 is supported by the elastic force of the spring 16 when in use, which facilitates the installation of the equipment.

[0038] In this embodiment, a damping sleeve 20 is installed inside the sliding sleeve 19. The damping sleeve 20 is slidably installed on the upper side of the guide rod 14. The damping sleeve 20 is provided to increase the friction between the sliding sleeve 19 and the guide rod 14 to avoid shaking of the sliding sleeve 19 and the grating displacement sensor 11 during use.

[0039] In this embodiment, cross bars 3 are installed on both sides of the bottom end of the pillar 4, and a handle 5 is installed at the bottom end of the adjusting rod 6. The setting of the cross bar 3 is convenient for putting the hollow metal rod on its outside, and the pillar 4 can be rotated conveniently by using the lever principle. At the same time, when rotating the pillar 4, the handle 5 can be held to fix the adjusting rod 6, so as to adjust the position of the adjusting rod 6.

[0040] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An underground in-situ rock burst monitoring sensor device, characterized in that: The invention comprises a support mechanism (1) and a monitoring box (8), wherein the support mechanism (1) is composed of an adjusting rod (6) and a pillar (4), the bottom end of the adjusting rod (6) is rotatably mounted at the upper end of the pillar (4), the bottom end of the pillar (4) is rotatably mounted with a base (2), the upper end of the adjusting rod (6) is mounted with a pressure monitoring mechanism (7), the upper end of the adjusting rod (6) extends into the interior of the monitoring box (8), a grating displacement sensor (11) is mounted at the upper end of the adjusting rod (6) located inside the monitoring box (8), guide mechanisms (15) are mounted on both sides of the grating displacement sensor (11), the guide mechanism (15) is mounted inside the monitoring box (8), and a grating glass (17) is mounted inside the monitoring box (8) at a position corresponding to the grating displacement sensor (11).

2. The underground in-situ rock burst monitoring sensor device according to claim 1 is characterized in that: The upper end of the top plate (9) and the lower end of the base (2) are both provided with rubber pads (10), and the rubber pads (10) are adhered to the upper end of the top plate (9) and the lower end of the base (2) by adhesive.

3. The underground in-situ rock burst monitoring sensor device according to claim 1 is characterized in that: A fixing bolt (21) is provided at one side of the upper end of the support (4), and the fixing bolt (21) is rotatably mounted at one side of the upper end of the support (4).

4. The underground in-situ rock burst monitoring sensor device according to claim 1, characterized in that: The regulating rod (6) is provided with a limit plate (18) at the bottom end of the inner section of the pillar (4), and the limit plate (18) is welded to the bottom end of the pillar (4).

5. The underground in-situ rock burst monitoring sensor device according to claim 1, characterized in that: The pressure monitoring mechanism (7) is composed of a pressure sensor (12) and a wire (13); the pressure sensor (12) is installed at the upper end of the adjustment rod (6); and the wire (13) is installed at a side of the pressure sensor (12).

6. The underground in-situ rock burst monitoring sensor device according to claim 1, characterized in that: The guide mechanism (15) is composed of a sliding sleeve (19), a guide rod (14) and a spring (16); the guide rod (14) is installed inside the monitoring box (8) at positions on both sides of the grating displacement sensor (11); the sliding sleeve (19) is installed at positions on both sides of the grating displacement sensor (11); the sliding sleeve (19) is slidably installed on the upper side of the guide rod (14); a damping sleeve (20) is installed inside the sliding sleeve (19); and the spring (16) is installed on the guide rod (14) at the upper end of the sliding sleeve (19).

7. The underground in-situ rock burst monitoring sensor device according to claim 6, characterized in that: A damping sleeve (20) is installed inside the sliding sleeve (19), and the damping sleeve (20) is slidably installed on the upper side of the guide rod (14).

8. The underground in-situ rock burst monitoring sensor device according to claim 1, characterized in that: Cross bars (3) are installed on both sides of the bottom end of the support (4), and a handle (5) is installed at the bottom end of the adjustment rod (6).

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