Accurate targeted control device for rock burst in stress concentration area

Abstract

The utility model discloses an accurate targeting control device for rock burst in a stress concentration area, and relates to the technical field of stress monitoring. The device comprises a mounting part, two mounting holes are formed in the mounting part, stress sensors are inserted into the mounting holes, and a first positioning ring and a second positioning ring are mounted on one sides of the two mounting holes respectively. And a fixing mechanism and an adjusting mechanism are mounted in the first positioning ring and the second positioning ring correspondingly. According to the utility model, the two mounting holes are arranged in the mounting part, the stress sensor is inserted into the mounting holes, the first positioning ring and the second positioning ring as well as the fixing mechanism and the adjusting mechanism in the first positioning ring and the second positioning ring are respectively mounted, so that the stress sensor is tightly connected with the spiral line, and the extension rod is used for keeping a horizontal state; accurate positioning and fixing, high-sensitivity stress detection and convenient adjustment and calibration are achieved, the accuracy and reliability of measurement are improved, meanwhile, the structure is stable, and maintenance and replacement are convenient.

Description

Technical Field

[0001] The utility model belongs to the field of stress monitoring, and specifically relates to a precise targeted control device for rock burst pressure in a stress concentration area. Background Art

[0002] The "Precision Targeted Control Device for Impact Ground Pressure in Stress Concentration Areas" is a device specifically used to monitor and control ground pressure in stress concentration areas. Stress concentration areas refer to areas inside or on the surface of structures (such as walls, rock formations, etc.) where high stress is generated due to uneven force, and these areas are prone to deformation or damage. Precision targeting means that the device can accurately locate and act on specific stress concentration areas, conduct targeted monitoring and control, and avoid affecting unrelated surrounding areas. Through the control device, stress changes can be monitored in real time, and corresponding adjustments and controls can be made to ensure the safety and stability of the structure.

[0003] In the existing wall stress detection technology, the commonly used systems include stress sensors directly installed on the wall surface or embedded in the wall. These sensors measure stress changes by detecting small deformations of the wall. The sensors of conventional systems are generally fixed directly on the wall and connected to the data acquisition system via cables. This refers to sudden geological pressure changes caused by stress concentration. This phenomenon is common in underground projects such as mines and tunnels, and may cause sudden rupture or collapse of rock formations, which is very destructive and dangerous.

[0004] The traditional system is difficult to adjust the position of the sensor after installation. Once any error occurs during the installation process, it is almost impossible to perform effective calibration and correction on site. This installation method not only increases the complexity and uncertainty of the installation, but also leads to deviations in the measurement results, making it difficult to accurately reflect the actual stress state of the wall, which seriously affects the reliability of the detection system and the accuracy of the data.

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

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a device for accurately targeting and controlling rock impact pressure in a stress concentration area, thereby solving the problems raised in the above-mentioned background technology.

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

[0008] A device for precisely targeting and controlling impact ground pressure in a stress concentration area comprises: a mounting portion, wherein two mounting holes are provided inside the mounting portion, a stress sensor is plugged into the mounting holes, a first positioning ring and a second positioning ring are respectively installed on one side of the two mounting holes, a fixing mechanism and an adjusting mechanism are respectively installed inside the first positioning ring and the second positioning ring, the two stress sensors are respectively located inside the fixing mechanism and the adjusting mechanism, and a spiral line is installed between the two stress sensors; an extension rod is fixedly connected to one side of the first positioning ring, and the edge of the stress sensor is tightly fitted under the extension rod.

[0009] Optionally, the fixing mechanism includes a fixing ring located at the axis of the first positioning ring, and a plurality of fixing rods are fixedly connected between the fixing ring and the positioning ring.

[0010] Optionally, the adjustment mechanism includes an adjustment ring located at the axis of the second positioning ring, a threaded hole is opened on the circumferential side of the outer wall of the second positioning ring, the internal thread of the threaded hole is connected to a screw rod, one end of the screw rod extending out of the threaded hole is fixedly connected to the adjustment ring, and the other end of the screw rod is fixedly connected to an adjustment button.

[0011] Optionally, friction patterns are arranged on the peripheral sides of the outer wall of the adjusting button, and a hexagonal hole is arranged on one side of the adjusting button.

[0012] Optionally, an external thread is provided on the circumferential side of the outer wall of the stress sensor, and the insides of the adjustment ring and the fixing ring are both provided with internal threads that match the external thread.

[0013] Optionally, one end of the stress sensor located inside the fixing ring or the adjusting ring is fixedly connected with a bolt, and both ends of the spiral wire are fixedly connected with a threaded sleeve that is threadably matched with the bolt.

[0014] Optionally, countersunk holes are formed on opposite sides of the first positioning ring and the second positioning ring.

[0015] 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:

[0016] By arranging two mounting holes inside the mounting part and plugging in the stress sensor, and by respectively installing the first positioning ring and the second positioning ring and the fixing mechanism and the adjusting mechanism inside them, the stress sensor is tightly connected to the spiral wire, and the extension rod is used to maintain a horizontal state, thereby achieving precise positioning and fixation, high-sensitivity stress detection and convenient adjustment and calibration, improving the accuracy and reliability of measurement, and at the same time, the structure is stable and easy to maintain and replace.

[0017] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] In the figure:

[0020] Figure 1 It is one of the three-dimensional schematic diagrams of the combination of the targeting control device and the mounting part;

[0021] Figure 2 It is one of the three-dimensional schematic diagrams of the combination of the targeting control device and the mounting part;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the targeting control device;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Mounting part; 2. Mounting hole; 3. First positioning ring; 4. Second positioning ring; 5. Spiral line; 6. Extension rod; 7. Fixing ring; 8. Fixing rod; 9. Adjusting ring; 10. Screw; 11. Adjusting button; 12. Threaded sleeve.

[0026] 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

[0027] The utility model is now described in further detail with reference to the accompanying drawings.

[0028] See also Figure 1-4As shown, in this embodiment, a device for precisely targeting and controlling rock pressure in a stress concentration area is provided, comprising a mounting portion 1, the mounting portion including but not limited to a wall or a rock mass, two mounting holes 2 are provided inside the mounting portion 1, a stress sensor 13 is inserted inside the mounting hole 2, an adjustment space is left between the stress sensor 13 and the mounting hole 2, a first positioning ring 3 and a second positioning ring 4 are respectively installed on one side of the two mounting holes 2, a fixing mechanism and an adjustment mechanism are respectively installed inside the first positioning ring 3 and the second positioning ring 4, two stress sensors 13 are respectively located inside the fixing mechanism and the adjustment mechanism, and a spiral line 5 is installed between the two stress sensors 13; an extension rod 6 is fixedly connected to one side of the first positioning ring 3, and the edge of the stress sensor 13 is tightly fitted under the extension rod 6. The extension rod 6 can be installed on one side of the first positioning ring 3 by means of a bolt 14, and the setting of the extension rod 6 can adjust the stress sensor 13 in the adjustment mechanism so that the stress sensor 13 contacts the bottom of the extension rod 6, thereby keeping the two stress sensors 13 in a horizontal state, ensuring the best contact and alignment between the sensor and the spiral line 5, thereby improving the measurement accuracy.

[0029] In this embodiment, the fixing mechanism includes a fixing ring 7 located at the axis of the first positioning ring 3, and a plurality of fixing rods 8 are fixedly connected between the fixing ring 7 and the positioning ring. The fixing ring 7 and the fixing rods 8 can be connected by welding, and the first positioning ring 3 mainly plays a role of position locking.

[0030] In this embodiment, the adjustment mechanism includes an adjustment ring 9 located at the axis of the second positioning ring 4, a threaded hole is opened on the circumferential side of the outer wall of the second positioning ring 4, and a screw 10 is connected to the internal thread of the threaded hole. One end of the screw 10 extending out of the threaded hole is fixedly connected to the adjustment ring 9, and the other end of the screw 10 is fixedly connected to an adjustment button 11.

[0031] In this embodiment, friction lines are arranged on the peripheral sides of the outer wall of the adjusting button 11, and a hexagonal hole is arranged on one side of the adjusting button 11. The setting of the hexagonal hole facilitates the subsequent rotation of the adjusting button 11. The friction lines can be a straight line structure or a diagonal line structure, and the setting of the friction lines allows a person to manually rub the adjusting button 11.

[0032] In this embodiment, the outer wall of the stress sensor 13 is provided with an external thread, and the inside of the adjusting ring 9 and the fixing ring 7 are both provided with an internal thread matching the external thread. The stress sensor 13 can be mounted by the matching between the external thread and the internal thread.

[0033] In this embodiment, one end of the stress sensor 13 located inside the fixing ring 7 or the adjusting ring 9 is fixedly connected with a bolt 14, and both ends of the spiral wire 5 are fixedly connected with a threaded sleeve 12 that is threadably matched with the bolt 14. The spiral wire 5 can be fixed between the two stress sensors 13 through the matching between the bolt 14 and the threaded sleeve 12.

[0034] In this embodiment, countersunk holes are provided on opposite sides of the first positioning ring 3 and the second positioning ring 4. The provision of the countersunk holes facilitates subsequent personnel to install the first positioning ring 3 or the second positioning ring 4 on the mounting portion 1.

[0035] Working principle: When the wall is under stress, when the wall is subjected to external force or internal changes, the wall will deform slightly, and the spiral 5 will deform accordingly. The sensor can capture this deformation and convert it into an electrical signal or optical signal. This deformation will cause the spiral 5 to stretch or compress. The stretching or compression of the spiral 5 will change its resistance transmission characteristics. The sensor detects this change and converts it into a measurable signal. These signals are processed and analyzed by the data acquisition system to obtain the stress magnitude and changes of the wall.

[0036] When the two stress sensors 13 are not in a horizontal line, the stress sensors 13 will not contact the extension rod 6. When this happens, the adjusting button 11 is rotated by a tool so that the adjusting button 11 drives the driving screw 10 to slide, thereby driving the adjusting ring 9 to move up and down, and then the stress sensor 13 contacts the extension rod 6.

[0037] The present invention is not limited to the above-mentioned embodiments. 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. A device for precisely targeting and controlling rock burst pressure in a stress concentration area, characterized in that: include: A mounting portion (1), wherein two mounting holes (2) are provided inside the mounting portion (1), a stress sensor (13) is inserted inside the mounting hole (2), a first positioning ring (3) and a second positioning ring (4) are respectively installed on one side of the two mounting holes (2), a fixing mechanism and an adjusting mechanism are respectively installed inside the first positioning ring (3) and the second positioning ring (4), the two stress sensors (13) are respectively located inside the fixing mechanism and the adjusting mechanism, and a spiral wire (5) is installed between the two stress sensors (13); an extension rod (6) is fixedly connected to one side of the first positioning ring (3), and the edge of the stress sensor (13) is tightly fitted under the extension rod (6).

2. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 1, characterized in that: The fixing mechanism comprises a fixing ring (7) located at the axis of the first positioning ring (3), and a plurality of fixing rods (8) are fixedly connected between the fixing ring (7) and the positioning ring.

3. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 2, characterized in that: The adjustment mechanism comprises an adjustment ring (9) located at the axis of the second positioning ring (4); a threaded hole is provided on the circumferential side of the outer wall of the second positioning ring (4); a screw rod (10) is connected to the inner thread of the threaded hole; one end of the screw rod (10) extending out of the threaded hole is fixedly connected to the adjustment ring (9); and the other end of the screw rod (10) is fixedly connected to an adjustment button (11).

4. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 3, characterized in that: The outer wall of the adjusting button (11) is provided with friction patterns on its circumference, and a hexagonal hole is provided on one side of the adjusting button (11).

5. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 4, characterized in that: The outer wall of the stress sensor (13) is provided with an external thread on its circumferential side, and the insides of the adjustment ring (9) and the fixing ring (7) are both provided with an internal thread matching the external thread.

6. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 5, characterized in that: One end of the stress sensor (13) located inside the fixing ring (7) or the adjusting ring (9) is fixedly connected to a bolt, and both ends of the spiral wire (5) are fixedly connected to a threaded sleeve (12) threadably matched with the bolt.

7. The device for precise targeted control of rock burst pressure in stress concentration area according to claim 1, characterized in that: Countersunk holes are provided on opposite sides of the first positioning ring (3) and the second positioning ring (4).

Images