Auxiliary centering device for deep hole ground stress monitoring installation

Abstract

The invention relates to the technical field of deep hole crustal stress monitoring, in particular to an auxiliary centering device for deep hole crustal stress monitoring installation. According to the deep hole ground stress monitoring installation auxiliary centering device, the ground stress monitor can incline in a drill hole so as to adapt to different drill hole inner wall conditions, and meanwhile information in the specific direction can be conveniently collected. An auxiliary centering device for deep hole crustal stress monitoring installation comprises a crustal stress monitor, a connector and the like, and the connector is connected to the lower side of the crustal stress monitor. A one-way electric push rod is started to push a first rotating block to move, so that the first rotating block rotates relative to a fixed frame, a second rotating block rotates on a connecting seat, and a ground stress monitor is inclined, so that the ground stress monitor can be inclined in a drill hole to adapt to different drill hole inner wall conditions; and meanwhile, information in a specific direction can be conveniently collected.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole ground stress monitoring, and in particular to an auxiliary centering device for deep hole ground stress monitoring installation. Background Art

[0002] Deep hole geostress monitoring is an important means to measure the stress state of underground rock mass, and is often used in the fields of mines, tunnels, water conservancy and hydropower engineering. In order to accurately measure geostress, it is necessary to install stress sensors or other monitoring instruments in the borehole. The existing deep hole geostress monitor is installed by pre-setting a borehole in the rock mass to be monitored, and then sending the geostress monitor to the specified position of the borehole so that the geostress monitor can monitor the surrounding stress. However, since the geostress monitor is usually installed in the center of the borehole through a centering device, and the existing centering device can only center the geostress monitor in the borehole, when the inner wall of the borehole is irregular or there are large cracks in the hole, the geostress monitor cannot be tilted to avoid these undesirable areas, which may cause it to be unable to correctly reflect the geostress, which is not conducive to adapting to various installation conditions and is not convenient for collecting information in a specific direction.

[0003] Therefore, a deep hole geostress monitoring installation auxiliary centering device has been developed, which can tilt the geostress monitor in the borehole to adapt to different borehole inner wall conditions and facilitate the collection of information in a specific direction. Summary of the invention

[0004] In order to overcome the shortcomings of the existing centering device that can only center the geostress monitor in the borehole, when the inner wall of the borehole is irregular or there are large cracks in the hole, the geostress monitor cannot be tilted to avoid these undesirable areas, which may cause it to be unable to correctly reflect the geostress, is not conducive to adapting to various installation conditions, and is not convenient for collecting information in a specific direction. The present invention provides a deep hole geostress monitoring installation auxiliary centering device that can tilt the geostress monitor in the borehole so as to adapt to different borehole inner wall conditions and facilitate the collection of information in a specific direction.

[0005] A deep hole geostress monitoring installation auxiliary centering device includes a geostress monitor, a connector, a tilting component, a cleaning component and a centering component. The geostress monitor is connected to the lower side, and the connector is provided with a tilting component capable of tilting the geostress monitor in a borehole. The geostress monitor is provided with a cleaning component capable of cleaning the inner wall of the borehole. The geostress monitor is also provided with a centering component capable of being centered in the borehole.

[0006] Optionally, a level sensor is also included, and the level sensors are connected to both the front and rear sides of the connector.

[0007] Optionally, the tilting assembly includes a fixed frame, a first rotating block, a one-way electric push rod, a second rotating block and a connecting seat, the left and right sides of the connecting head are connected to the fixed frame, the first rotating block is rotatably connected to the fixed frame, the connecting seat is located on the outer side of the lower part of the connecting head, the left and right upper sides of the connecting seat are rotatably connected to the second rotating blocks, the second rotating block is connected to the one-way electric push rod, the telescopic ends of the one-way electric push rod are connected to the adjacent first rotating block, the one-way electric push rod is started to push the first rotating block to move, so that the first rotating block rotates relative to the fixed frame, and the second rotating block rotates on the connecting seat, so that the ground stress monitor tilts.

[0008] Optionally, the cleaning component includes a two-way electric push rod, a connecting frame, a telescopic rod, a scraper and a pressure spring. The left and right sides of the lower part of the ground stress monitor are connected to the two-way electric push rods, a connecting frame is connected between the telescopic ends on the upper side of the two-way electric push rods, and a connecting frame is also connected between the telescopic ends on the lower side of the two-way electric push rods. The connecting frames are all slidably connected to the ground stress monitor, and multiple groups of telescopic rods are connected to the connecting frames. Each group consists of two telescopic rods. Scrapers are connected between the telescopic ends of the telescopic rods in the same group, and pressure springs are connected between the scrapers and the connected telescopic rods. When the ground stress monitor moves in the borehole, the scraper on the telescopic rod is always kept in contact with the inner wall of the borehole through the force of the pressure spring. The two-way electric push rod is started to push the connecting frame to move away from each other, so that the scraper moves on the inner wall of the borehole.

[0009] Optionally, the scrapers are all arc-shaped.

[0010] Optionally, the centering component includes a support frame, a rotating plate, a rotating wheel and a torsion spring. The outer sides of the upper and lower parts of the ground stress monitor are connected to multiple support frames, the support frames are rotatably connected to rotating plates, the rotating plates are rotatably connected to rotating wheels, and multiple torsion springs are connected between the rotating plates and the connected support frames. When the connecting frames move away from each other, they push the rotating plates to rotate outward and open, so that the rotating wheels contact the inner wall of the borehole and the torsion springs are deformed.

[0011] Optionally, anti-skid pads are provided on the rotating wheels.

[0012] Optionally, a deep-drilling component is also included, which includes a splicing sleeve and a splicing rod. The lower sides of the left and right parts of the connecting seat are connected to the splicing sleeves, and the splicing rods are threadedly connected to the splicing sleeves. According to the drilling depth and the preset position of the ground stress monitor, a corresponding number of splicing sleeves and splicing rods are spliced ​​to adapt to the drilling depth. After splicing, the ground stress monitor is pushed into the borehole through the splicing rod and the splicing sleeve.

[0013] Optionally, the splicing sleeve has the same diameter as the splicing rod.

[0014] Optionally, a fixing component is also included, which includes a support block, a motor, a screw rod, a moving block and a fixed rod. The support block is connected to the front side of the right part of the connecting seat, and the support block is also connected to the rear side of the left part of the connecting seat. The support blocks are connected to the motor, and the motor output shaft is connected to the screw rod. The screw rod is rotatably connected to the connecting seat, and the moving block is threadedly connected to the screw rod. The moving blocks are slidably connected to the connecting seat, and the moving blocks are connected to the fixed rod. Starting the motor on the support block drives the screw rod to rotate, so that the moving block moves, the fixed rod is pushed out, and the fixed rod is inserted into the inner wall of the drilled hole to fix the connecting seat at the specified position.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention starts the one-way electric push rod to push the first rotating block to move, so that the first rotating block rotates relative to the fixed frame, and the second rotating block rotates on the connecting seat, so that the ground stress monitor is tilted, thereby achieving the effect of enabling the ground stress monitor to tilt in the borehole to adapt to different borehole inner wall conditions and facilitate the collection of information in a specific direction.

[0016] 2. The present invention uses the force of the pressure spring to keep the scraper on the telescopic rod in contact with the inner wall of the borehole at all times, starts the two-way electric push rod, pushes the connecting frame to move away from each other, and allows the scraper to move on the inner wall of the borehole, thereby achieving the effect of cleaning the inner wall of the borehole and avoiding affecting the push monitoring of the ground stress monitor.

[0017] 3. The present invention pushes the rotating plate to rotate and open outward while the connecting frames move away from each other, so that the rotating wheel contacts the inner wall of the borehole and the torsion spring is deformed, thereby achieving the effect of centering the ground stress monitor in the borehole and allowing the ground stress monitor to collect all-round data in the borehole.

[0018] 4. The present invention splices a corresponding number of splicing sleeves and splicing rods to adapt to the drilling depth. After the splicing is completed, the ground stress monitor is pushed into the borehole through the splicing rod and the splicing sleeve, thereby achieving the effect of being able to quickly and conveniently place the ground stress monitor in boreholes of different depths.

[0019] 5. The present invention starts the motor on the support block to drive the screw to rotate, so that the moving block moves, the fixing rod is pushed out, the fixing rod is inserted into the inner wall of the borehole, and the connecting seat is fixed at a specified position, thereby achieving the effect of fixing the ground stress monitor at a preset position and avoiding displacement of the ground stress monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the first part of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the second part of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the third part of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the fourth part of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the fifth part of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the sixth part of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the seventh part of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the eighth part of the present invention.

[0029] Fig.10 This is a three-dimensional structural effect diagram of the first part of the present invention.

[0030] Fig.11 This is a three-dimensional structural effect diagram of the second part of the present invention.

[0031] Markings in the accompanying drawings: 1: ground stress monitor, 2: connecting head, 3: horizontal sensor, 4: fixed frame, 5: first rotating block, 6: one-way electric push rod, 7: second rotating block, 8: connecting seat, 9: splicing sleeve, 10: splicing rod, 11: two-way electric push rod, 12: connecting frame, 13: telescopic rod, 14: scraper, 15: pressure spring, 16: support block, 17: motor, 18: screw, 19: moving block, 20: fixed rod, 21: support frame, 22: rotating plate, 23: rotating wheel, 24: torsion spring. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0033] A deep hole ground stress monitoring installation auxiliary centering device, such as Figure 1-Figure 11 As shown, it includes a ground stress monitor 1, a connector 2, a horizontal sensor 3, a tilting component, a cleaning component and a centering component. The ground stress monitor is connected to the lower side of the ground stress monitor, and the horizontal sensors 3 are connected to the front and rear sides of the connector 2. The connector 2 is provided with a tilting component, the ground stress monitor 1 is provided with a cleaning component, and the ground stress monitor 1 is also provided with a centering component.

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, the tilting assembly includes a fixed frame 4, a first rotating block 5, a one-way electric push rod 6, a second rotating block 7 and a connecting seat 8. The fixed frame 4 is connected to the left and right sides of the connecting head 2. The first rotating block 5 is rotatably connected to the fixed frame 4. The connecting seat 8 is located on the outer side of the lower part of the connecting head 2. The upper sides of the left and right parts of the connecting seat 8 are rotatably connected to the second rotating block 7. The second rotating block 7 is connected to the one-way electric push rod 6. The telescopic ends of the one-way electric push rod 6 are connected to the adjacent first rotating block 5.

[0035] like Figure 1 , Figure 5 and Figure 6 As shown, the cleaning assembly includes a two-way electric push rod 11, a connecting frame 12, a telescopic rod 13, a scraper 14 and a pressure spring 15. The two-way electric push rod 11 is connected to the left and right sides of the lower part of the ground stress monitor 1. The connecting frame 12 is connected between the telescopic ends on the upper side of the two-way electric push rod 11, and the connecting frame 12 is also connected between the telescopic ends on the lower side of the two-way electric push rod 11. The connecting frames 12 are all slidably connected to the ground stress monitor 1. Multiple groups of telescopic rods 13 are connected to the connecting frames 12, and each group is composed of two telescopic rods 13. Scrapers 14 are connected between the telescopic ends of the telescopic rods 13 in the same group. The scrapers 14 are all arc-shaped, which is convenient for cleaning the inner wall of the borehole. Pressure springs 15 are connected between the scrapers 14 and the connected telescopic rods 13.

[0036] like Figure 1 , Figure 8 and Fig. 9 As shown, the centering component includes a support frame 21, a rotating plate 22, a rotating wheel 23 and a torsion spring 24. Four support frames 21 are connected to the outer sides of the upper and lower parts of the ground stress monitor 1. The support frames 21 are rotatably connected to the rotating plates 22, and the rotating plates 22 are rotatably connected to the rotating wheels 23. The rotating wheels 23 are provided with anti-slip pads to improve the stability of movement in the borehole. Two torsion springs 24 are connected between the rotating plates 22 and the connected support frames 21.

[0037] When using the present invention, first place the geostress monitor 1 in a preset borehole so that the geostress monitor 1 is located at a specified position of the borehole, connect the power transmission cable through the connector 2, and the horizontal sensor 3 can monitor whether the geostress monitor 1 is horizontal. When the geostress monitor 1 moves in the borehole, the scraper 14 on the telescopic rod 13 is always kept in contact with the inner wall of the borehole through the force of the pressure spring 15, and the two-way electric push rod 11 is started to push the connecting frame 12 to move away from each other, so that the scraper 14 moves on the inner wall of the borehole, thereby playing a role in cleaning the inner wall of the borehole and avoiding affecting the push monitoring of the geostress monitor 1. When the connecting frame 12 moves away from each other, it pushes the rotating plate 22 to rotate outward and open, so that the rotating wheel 23 contacts the inner wall of the borehole, and the torsion spring 24 is deformed, so that the ground stress monitor 1 is in the center position in the borehole, so that the ground stress monitor 1 collects all-round data in the borehole. After the connecting frame 12 is separated from the rotating plate 22, the torsion spring 24 is restored, so that the rotating plate 22 and the rotating wheel 23 are reset. When the inner wall of the borehole is irregular or there are large cracks in the hole, directly installing the monitoring meter vertically may cause it to fail to correctly reflect the ground stress, or when it is necessary to collect stress information in a specific direction in the borehole, the one-way electric push rod 6 can be started at this time to push the first rotating block 5 to move, so that the first rotating block 5 rotates relative to the fixed frame 4, and the second rotating block 7 rotates on the connecting seat 8, so that the ground stress monitor 1 is tilted, so that the ground stress monitor 1 can be tilted in the borehole to adapt to different inner wall conditions of the borehole, and at the same time, it is convenient to collect information in a specific direction.

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a deep-going component, which includes a splicing sleeve 9 and a splicing rod 10. The lower sides of the left and right parts of the connecting seat 8 are connected to the splicing sleeve 9. The splicing sleeve 9 has the same diameter as the splicing rod 10, which is convenient for use after splicing. The splicing sleeve 9 is threadedly connected to the splicing rod 10.

[0039] When the ground stress monitor 1 is placed in a preset borehole, a corresponding number of splicing sleeves 9 and splicing rods 10 can be spliced ​​according to the borehole depth and the preset position of the ground stress monitor 1 to adapt to the borehole depth. After splicing, the connecting seat 8 is pushed into the borehole through the splicing rod 10 and the splicing sleeve 9, and then the ground stress monitor 1 is pushed into the borehole, thereby playing a role in quickly and conveniently placing the ground stress monitor 1 in boreholes of different depths.

[0040] like Figure 1 and Figure 7As shown, it also includes a fixed component, which includes a support block 16, a motor 17, a screw rod 18, a moving block 19 and a fixed rod 20. The front side of the right part of the connecting seat 8 is connected to the support block 16, and the rear side of the left part of the connecting seat 8 is also connected to the support block 16. The support blocks 16 are all connected to the motor 17, and the output shafts of the motor 17 are all connected to the screw rods 18. The screw rods 18 are all rotatably connected to the connecting seat 8. The moving blocks 19 are all threadedly connected to the screw rods 18. The moving blocks 19 are all slidably connected to the connecting seat 8, and the moving blocks 19 are all connected to the fixed rod 20.

[0041] After the ground stress monitor 1 reaches the specified position, the motor 17 on the support block 16 is started to drive the screw 18 to rotate, so that the moving block 19 moves, the fixing rod 20 is pushed out, and the fixing rod 20 is inserted into the inner wall of the borehole, and the connecting seat 8 is fixed at the specified position, thereby fixing the ground stress monitor 1 at a preset position and preventing the ground stress monitor 1 from shifting.

[0042] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A deep hole ground stress monitoring installation auxiliary centering device, characterized by: The invention comprises a geostress monitor (1), a connector (2), a tilting component, a cleaning component and a centering component. The lower side of the geostress monitor is connected to the connector (2). The connector (2) is provided with a tilting component capable of tilting the geostress monitor (1) in a borehole. The geostress monitor (1) is provided with a cleaning component capable of cleaning the inner wall of the borehole. The geostress monitor (1) is also provided with a centering component capable of being centered in the borehole.

2. The deep hole ground stress monitoring installation auxiliary centering device according to claim 1 is characterized by: It also includes a level sensor (3), and the level sensor (3) is connected to both the front and rear sides of the connector (2).

3. The deep hole ground stress monitoring installation auxiliary centering device according to claim 1 is characterized by: The tilting assembly comprises a fixed frame (4), a first rotating block (5), a one-way electric push rod (6), a second rotating block (7) and a connecting seat (8). The left and right sides of the connecting head (2) are connected to the fixed frame (4), the first rotating block (5) is rotatably connected to the fixed frame (4), the connecting seat (8) is located on the outer side of the lower part of the connecting head (2), the upper sides of the left and right parts of the connecting seat (8) are rotatably connected to the second rotating block (7), the second rotating block (7) is connected to the one-way electric push rod (6), the telescopic end of the one-way electric push rod (6) is connected to the adjacent first rotating block (5), the one-way electric push rod (6) is started, the first rotating block (5) is pushed to move, the first rotating block (5) is rotated relative to the fixed frame (4), the second rotating block (7) is rotated on the connecting seat (8), so that the ground stress monitor (1) is tilted.

4. The deep hole ground stress monitoring installation auxiliary centering device according to claim 3 is characterized by: The cleaning assembly comprises a bidirectional electric push rod (11), a connecting frame (12), a telescopic rod (13), a scraper (14) and a pressure spring (15). The left and right sides of the lower part of the ground stress monitor (1) are connected with the bidirectional electric push rod (11). The connecting frame (12) is connected between the telescopic ends on the upper side of the bidirectional electric push rod (11). The connecting frame (12) is also connected between the telescopic ends on the lower side of the bidirectional electric push rod (11). The connecting frame (12) is slidably connected to the ground stress monitor (1). Multiple groups of telescopic rods (13) are connected to the connecting frame (12). Each group is composed of two telescopic rods (13), and a scraper (14) is connected between the telescopic ends of the telescopic rods (13) in the same group, and a pressure spring (15) is connected between the scraper (14) and the connected telescopic rod (13). When the ground stress monitor (1) moves in the borehole, the scraper (14) on the telescopic rod (13) is always kept in contact with the inner wall of the borehole through the action of the pressure spring (15), and the two-way electric push rod (11) is started to push the connecting frame (12) to move away from and close to each other, so that the scraper (14) moves on the inner wall of the borehole.

5. The deep hole ground stress monitoring installation auxiliary centering device according to claim 4 is characterized by: The scrapers (14) are all arc-shaped.

6. The deep hole ground stress monitoring installation auxiliary centering device according to claim 4 is characterized by: The centering component comprises a support frame (21), a rotating plate (22), a rotating wheel (23) and a torsion spring (24). The outer sides of the upper and lower parts of the ground stress monitor (1) are connected to a plurality of support frames (21). The support frames (21) are rotatably connected to the rotating plates (22). The rotating plates (22) are rotatably connected to the rotating wheels (23). A plurality of torsion springs (24) are connected between the rotating plates (22) and the connected support frames (21). When the connecting frames (12) move away from each other, the rotating plates (22) are pushed to rotate outward and open, so that the rotating wheels (23) contact the inner wall of the borehole, and the torsion springs (24) are deformed.

7. The deep hole ground stress monitoring installation auxiliary centering device according to claim 6 is characterized by: The rotating wheels (23) are all provided with anti-skid pads.

8. The deep hole ground stress monitoring installation auxiliary centering device according to claim 6 is characterized by: The invention also comprises a deep-drilling assembly, which comprises a splicing sleeve (9) and a splicing rod (10). The lower sides of the left and right parts of the connecting seat (8) are both connected to the splicing sleeve (9), and the splicing rod (10) is threadedly connected to the splicing sleeve (9). According to the drilling depth and the preset position of the ground stress monitor (1), a corresponding number of splicing sleeves (9) and splicing rods (10) are spliced ​​to adapt to the drilling depth. After the splicing is completed, the connecting seat (8) is pushed into the drilling hole through the splicing rod (10) and the splicing sleeve (9), and the ground stress monitor (1) is pushed into the drilling hole.

9. The deep hole ground stress monitoring installation auxiliary centering device according to claim 8 is characterized by: The diameter of the splicing sleeve (9) and the splicing rod (10) is the same.

10. The deep hole ground stress monitoring installation auxiliary centering device according to claim 8, characterized in that: The invention also comprises a fixing assembly, which comprises a support block (16), a motor (17), a screw rod (18), a moving block (19) and a fixing rod (20). The front side of the right part of the connecting seat (8) is connected to the support block (16), and the rear side of the left part of the connecting seat (8) is also connected to the support block (16). The support blocks (16) are all connected to the motor (17). The output shaft of the motor (17) is all connected to the screw rod (18). The screw rod (18) is connected to the connecting seat (8). The screw rod (18) is connected with a moving block (19) in a threaded manner, and the moving block (19) is connected with the connecting seat (8) in a sliding manner. The moving block (19) is connected with a fixing rod (20). The motor (17) on the supporting block (16) is started to drive the screw rod (18) to rotate, so that the moving block (19) moves, pushes out the fixing rod (20), and inserts the fixing rod (20) into the inner wall of the drill hole, so that the connecting seat (8) is fixed at a specified position.

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