A detection device for rock damage caused by nuclear power negative excavation blasting vibration

Abstract

The invention relates to the technical field of rock blasting, and proposes a detection device for rock damage caused by nuclear power plant negative excavation blasting vibration. The device comprises a detection shell, a vibration sensor is arranged inside the detection shell, and a fixing mechanism is arranged inside the detection shell. The invention uses mutual cooperation between components such as a motor, a fixing spike and a compression spring of the fixing mechanism. When rock blasting detection is required, the staff places the detection shell on the rock near the nuclear power plant, and then starts the motor to make a trigger rod press the fixing spike, so that the fixing spike enters the rock to fix the detection shell. At the same time, the pressure rod moves downward to press the vibration sensor, so that the vibration actuator enters the rock, and then the vibration wave in the blasting process is monitored in real time. Such a design achieves the effect of fixing the detection shell, and effectively prevents accidents of the detection shell during use, resulting in deviations in detection data.

Description

Technical Field

[0001] The invention relates to the technical field of rock blasting, and in particular to a device for detecting rock damage caused by nuclear power negative excavation blasting vibration. Background Art

[0002] Rock mass is a material with extremely complex formation and structure. Due to weathering, erosion and groundwater action, the composition, structure and physical and mechanical properties of rock mass will change, and the physical and mechanical properties of various types of rock mass are different. The surrounding rock of the tunnel generally has a large number of geological defects in the initial state. When the drilling and blasting method is used for construction, the explosion of explosives in the rock mass will inevitably cause damage and destruction to the surrounding rock mass, resulting in the deterioration of the mechanical properties of the rock mass, which will in turn make the stability of the surrounding rock worse and the bearing capacity will also be reduced.

[0003] The invention with publication number CN 114812312B discloses a device and method for monitoring the propagation law of blasting vibration waves inside a rock mass: comprising a vibrometer, a casing, a power cord of the vibrometer, an antenna, a force-bearing line, a wireless AP network group router, and a distribution box. By combining the casing and the vibrometer, it is ensured that the vibrometer is lowered horizontally and directed toward a target position, and a grouting method is used to achieve complete coupling with the surrounding rock mass, thereby ensuring the accuracy of data collection by the vibrometer during blasting.

[0004] In the above application, through the mutual cooperation between the vibration meter and the vibration meter power cord assembly, it is difficult to solve the function of protecting the vibration meter when the vibration meter detects rock blasting data, resulting in the vibration meter being damaged by foreign objects during use. Therefore, we proposed a detection device for rock damage caused by nuclear power negative excavation blasting vibration. Summary of the invention

[0005] The invention provides a device for detecting rock damage caused by nuclear power negative excavation blasting vibration.

[0006] The technical solution of the present invention is as follows: A detection device for rock damage caused by nuclear power negative excavation blasting vibration comprises a detection shell, a vibration sensor is arranged inside the detection shell, and a fixing mechanism is arranged inside the detection shell; the fixing mechanism comprises a motor, the top of the motor is fixedly connected to the inside of the detection shell, the output shaft of the motor is fixedly connected to a rotating shaft, the end of the rotating shaft away from the output shaft of the motor is fixedly connected to a threaded rod, the circumferential surface of the threaded rod is threadedly connected to a threaded sleeve, the side of the threaded sleeve is fixedly connected to a pressure rod, the inside of the detection shell is fixedly connected to a mounting plate, the side of the mounting plate is provided with a slide groove, the inside of the slide groove is slidably connected to a mounting sleeve, the inside of the mounting sleeve is fixedly connected to the circumferential surface of the vibration sensor, the side of the threaded sleeve is fixedly connected to a trigger rod, the side of the mounting plate is fixedly connected to a fixing plate, the top of the fixing plate is penetrated by a fixing thorn, and is slidably connected to the circumferential surface of the fixing thorn.

[0007] A compression spring is fixedly connected to the top of the fixing plate, and one end of the compression spring away from the top of the fixing plate is fixedly connected to the circumferential surface of the fixing thorn. The circumferential surface of the threaded rod is fixedly penetrated through the limiting plate. The function of the compression spring is to reset the fixing thorn through the elasticity of the compression spring when the fixing thorn is not under force, and the function of the limiting plate is to limit the displacement distance of the threaded sleeve.

[0008] A limiting shaft is fixedly connected to the bottom of the limiting plate, and the circumferential surface of the limiting shaft penetrates the top of the threaded sleeve and is slidably connected to the top of the threaded sleeve. The function of the limiting shaft is to prevent the threaded sleeve from rotating during movement.

[0009] The number of the trigger rod, the fixed thorn and the compression spring is set to two, and they are symmetrical to each other along the vertical center axis of the detection shell. The top of the vibration sensor is located on the displacement track of the pressure rod, and the top of the fixed thorn is located on the displacement track of the trigger rod. The detection shell is stably fixed by the two fixed thorns. The top of the vibration sensor is located on the displacement track of the pressure rod to ensure that the pressure rod can press the vibration sensor during the movement of the pressure rod. The top of the fixed thorn is located on the displacement track of the trigger rod to ensure that the trigger rod can press the fixed thorn during the movement.

[0010] A protective mechanism is provided inside the detection shell, and the protective mechanism includes a rotating rod, one end of which is fixedly connected to the circumferential surface of the rotating shaft, the side of the detection shell is rotatably connected to a support shaft, the circumferential surface of the support shaft is fixedly connected to a force rod, the circumferential surface of the support shaft is fixedly connected to a locking rod, the side of the detection shell is rotatably connected to a control shaft, the circumferential surface of the control shaft is fixedly connected to a protective plate, a locking groove is provided inside the protective plate, and the protective mechanism is provided inside the detection shell to protect the detection shell during use.

[0011] A torsion spring is fixedly connected to the side of the detection shell, and one end of the torsion spring away from the side of the detection shell is fixedly connected to the circumferential surface of the control shaft. An embedding groove is provided on the side of the detection shell. The function of the torsion spring is that when the locking rod leaves the locking groove, the protective plate protects the detection shell through the elasticity of the torsion spring.

[0012] The side surface of the force-bearing rod is located on the displacement track of the rotating rod. The side surface of the force-bearing rod is located on the displacement track of the rotating rod to ensure that the force-bearing rod can be pushed during the rotation of the rotating rod.

[0013] An alarm mechanism is arranged inside the detection shell, and the alarm mechanism includes a placement box, a fixed groove is opened inside the placement box, an iron ball is slidably connected inside the fixed groove, a conveying sleeve is fixedly penetrated through the bottom of the placement box, an alarm compartment is fixedly penetrated through the bottom of the conveying sleeve, a start button is arranged inside the alarm compartment, an alarm light is arranged on the side of the start button, an extrusion spring is fixedly connected inside the alarm compartment, and a trigger plate is fixedly connected to one end of the extrusion spring away from the inside of the alarm compartment. The alarm mechanism arranged inside the detection shell has the function of sounding an alarm when a vibration amplitude or frequency exceeding the safety standard is detected, so as to remind relevant personnel to take safety measures.

[0014] A reset groove is provided at the bottom of the alarm bin, and the reset groove is used to reset the movable iron ball to the inside of the fixed groove through the reset groove.

[0015] The trigger end of the start button is located on the displacement track of the trigger plate. The trigger end of the start button is located on the displacement track of the trigger plate to ensure that the trigger end of the start button can be triggered when the trigger plate moves.

[0016] The working principle and beneficial effects of the present invention are: 1. The present invention uses the mutual cooperation among the components such as the motor, the fixed spike and the compression spring of the fixing mechanism. When it is necessary to detect rock blasting, the staff will place the detection shell on the rock near the nuclear power plant, and then start the motor to make the trigger rod press the fixed spike. The fixed spike is moved downward through the fixed plate under pressure, enters the rock through the fixed spike, and fixes the detection shell. At the same time, the threaded sleeve moves downward to drive the pressure rod to move downward. During the downward movement of the pressure rod, the vibration sensor is pressed, so that the vibration actuator enters the rock, and then the vibration wave in the blasting process is monitored in real time. This design achieves the effect of fixing the detection shell, and effectively prevents accidents of the detection shell during use, which leads to deviations in the detection data.

[0017] 2. In the present invention, the components of the protective mechanism, such as the rotating rod, the locking rod and the protective plate, cooperate with each other. When the fixing mechanism is started, the rotating shaft rotates counterclockwise to drive the rotating rod to push the force-bearing rod, so that the locking rod leaves the locking groove. At this time, the protective plate is not subject to resistance, and the detection shell is protected by the control shaft and the torsion spring. This design achieves the effect of protecting the detection shell, and effectively prevents the detection shell from being damaged by foreign objects when used on the rock mass near the nuclear power plant.

[0018] 3. The present invention uses the mutual cooperation between the components of the alarm mechanism, such as the iron ball, the alarm light and the extrusion spring. When the detection shell is detecting and the vibration amplitude or frequency of rock blasting exceeds the safety standard, the iron ball inside the placement box is subjected to the vibration force exceeding the safety standard, leaves the fixed groove, and falls onto the trigger plate through the path inside the conveying sleeve. The trigger plate is subjected to the gravity of the iron ball and moves downward through the extrusion spring. During the downward movement of the trigger plate, the trigger end of the start button is pressed, causing the alarm light to flash and sounding an alarm. This design achieves the effect of safety monitoring and early warning of rock blasting, and can promptly remind relevant personnel to take safety measures or reduce blasting force to reduce accidents.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of the three-dimensional appearance of the present invention from a first viewing angle; Figure 2 It is a schematic structural diagram of a three-dimensional cross-section of the present invention from a first viewing angle; Figure 3 It is a schematic structural diagram of a three-dimensional cross-section of the present invention from a second viewing angle; Figure 4 For the present invention Figure 2 A is a schematic diagram of the three-dimensional enlarged structure; Figure 5 For the present invention Figure 2 Schematic diagram of the three-dimensional enlarged structure of B; Figure 6 For the present invention Figure 3 Schematic diagram of the three-dimensional magnified structure of C; Figure 7 For the present invention Figure 3 Schematic diagram of the three-dimensional magnified structure in D.

[0022] In the figure: 1. detection shell; 2. vibration sensor; 3. fixing mechanism; 31. motor; 32. rotating shaft; 33. threaded rod; 34. threaded sleeve; 35. pressure rod; 36. mounting plate; 37. slide groove; 38. mounting sleeve; 39. trigger rod; 310. fixing plate; 311. fixing thorn; 312. compression spring; 313. limit plate; 314. limiting shaft; 4. protection mechanism; 41. rotating rod; 42. supporting shaft; 43. force rod; 44. locking rod; 45. control shaft; 46. protection plate; 47. locking groove; 48. torsion spring; 49. inlay groove; 5. alarm mechanism; 51. placement box; 52. fixing groove; 53. iron ball; 54. conveying sleeve; 55. alarm compartment; 56. start button; 57. alarm light; 58. extrusion spring; 59. trigger plate; 510. reset groove. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1 like Figure 1 to Figure 7As shown, this embodiment proposes a detection device for rock damage caused by nuclear power negative excavation blasting vibration, including a detection shell 1, a vibration sensor 2 is arranged inside the detection shell 1, and a fixing mechanism 3 is arranged inside the detection shell 1; the fixing mechanism 3 includes a motor 31, the top of the motor 31 is fixedly connected to the inside of the detection shell 1, the output shaft of the motor 31 is fixedly connected to a rotating shaft 32, the end of the rotating shaft 32 away from the output shaft of the motor 31 is fixedly connected to a threaded rod 33, the circumferential surface of the threaded rod 33 is threadedly connected to a threaded sleeve 34, the side of the threaded sleeve 34 is fixedly connected to a pressure rod 35, and the detection shell 1 is fixedly connected to the side of the detection shell 1. A mounting plate 36 is fixedly connected inside, a slide groove 37 is provided on the side of the mounting plate 36, a mounting sleeve 38 is slidably connected inside the slide groove 37, the inside of the mounting sleeve 38 is fixedly connected to the circumferential surface of the vibration sensor 2, a trigger rod 39 is fixedly connected to the side of the threaded sleeve 34, a fixing plate 310 is fixedly connected to the side of the mounting plate 36, a fixing thorn 311 is penetrated at the top of the fixing plate 310, and is slidably connected to the circumferential surface of the fixing thorn 311, a compression spring 312 is fixedly connected to the top of the fixing plate 310, and one end of the compression spring 312 away from the top of the fixing plate 310 is slidably connected to the circumferential surface of the fixing thorn 311 The circumferential surface of the threaded rod 33 is fixedly connected, and the circumferential surface of the threaded rod 33 is fixedly penetrated by the limiting plate 313. The function of the compression spring 312 is to reset the fixed thorn 311 through the elasticity of the compression spring 312 when the fixed thorn 311 is not under force. The function of the limiting plate 313 is to limit the displacement distance of the threaded sleeve 34. The bottom of the limiting plate 313 is fixedly connected with a limiting shaft 314. The circumferential surface of the limiting shaft 314 penetrates the top of the threaded sleeve 34 and is slidably connected to the top of the threaded sleeve 34. The function of the limiting shaft 314 is to prevent the threaded sleeve 34 from rotating during the movement. The trigger rod 39, the fixed thorn 311 and the compression spring The number of springs 312 is set to two, and they are symmetrical to each other along the vertical center axis of the detection shell 1. The top of the vibration sensor 2 is located on the displacement trajectory of the pressure rod 35, and the top of the fixed spike 311 is located on the displacement trajectory of the trigger rod 39. The detection shell 1 is stably fixed by the two fixed spikes 311. The top of the vibration sensor 2 is located on the displacement trajectory of the pressure rod 35 to ensure that the pressure rod 35 can press the vibration sensor 2 during the movement of the pressure rod 35. The top of the fixed spike 311 is located on the displacement trajectory of the trigger rod 39 to ensure that the trigger rod 39 can press the fixed spike 311 during the movement.

[0025] In this embodiment, when it is necessary to detect rock blasting, the staff places the detection shell 1 on the rock near the nuclear power plant, and then starts the motor 31. The output shaft of the motor 31 rotates counterclockwise, and the output shaft of the motor 31 rotates counterclockwise to drive the rotating shaft 32 to rotate counterclockwise. The rotating shaft 32 rotates counterclockwise to drive the threaded rod 33 to rotate counterclockwise, and the threaded sleeve 34 threadedly connected to the circumferential surface of the threaded rod 33 moves downward. The threaded sleeve 34 moves downward to drive the trigger rod 39 to move downward. During the downward movement of the trigger rod 39, the fixed spike 311 is pressed. The fixing spike 311 is pressed, and is moved downward through the fixing plate 310 by the pressure, and enters the rock mass through the fixing spike 311 to fix the detection shell 1. At the same time, the threaded sleeve 34 moves downward to drive the pressure rod 35 to move downward. During the downward movement of the pressure rod 35, the vibration sensor 2 is pressed, so that the vibration sensor 2 enters the rock mass, and then the vibration waves in the blasting process are monitored in real time. When the position of the detection shell 1 needs to be changed, the fixing spike 311 is not subjected to force, and is reset by the elasticity of the compression spring 312, thereby releasing the fixation of the detection shell 1.

[0026] Example 2 like Figure 1 to Figure 7As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a protective mechanism 4 is arranged inside the detection housing 1, and the protective mechanism 4 includes a rotating rod 41, one end of which is fixedly connected to the circumferential surface of the rotating shaft 32, and the side of the detection housing 1 is rotatably connected to a support shaft 42, and the circumferential surface of the support shaft 42 is fixedly connected to a force-bearing rod 43, and the circumferential surface of the support shaft 42 is fixedly connected to a locking rod 44, and the side of the detection housing 1 is rotatably connected to a control shaft 45, and the circumferential surface of the control shaft 45 is fixedly connected to a protective plate 46, and a locking groove 47 is provided inside the protective plate 46, and the interior of the detection housing 1 is provided with The function of the protective mechanism 4 is to protect the detection housing 1 during use. A torsion spring 48 is fixedly connected to the side of the detection housing 1. One end of the torsion spring 48 away from the side of the detection housing 1 is fixedly connected to the circumferential surface of the control shaft 45. An inlay groove 49 is provided on the side of the detection housing 1. The function of the torsion spring 48 is that when the locking rod 44 leaves the locking groove 47, the protective plate 46 protects the detection housing 1 through the elasticity of the torsion spring 48. The side of the force-bearing rod 43 is located on the displacement track of the rotating rod 41. The function of the side of the force-bearing rod 43 on the displacement track of the rotating rod 41 is to ensure that the rotating rod 41 rotates during the rotation of the rotating rod 41. The detection housing 1 is capable of pushing the stress-bearing rod 43. An alarm mechanism 5 is arranged inside the detection housing 1. The alarm mechanism 5 comprises a placement box 51. A fixing groove 52 is arranged inside the placement box 51. An iron ball 53 is slidably connected inside the fixing groove 52. A conveying sleeve 54 is fixedly penetrated through the bottom of the placement box 51. An alarm compartment 55 is fixedly penetrated through the bottom of the conveying sleeve 54. A start button 56 is arranged inside the alarm compartment 55. An alarm light 57 is arranged on the side of the start button 56. An extrusion spring 58 is fixedly connected inside the alarm compartment 55. A trigger plate 59 is fixedly connected to one end of the extrusion spring 58 away from the inside of the alarm compartment 55. The detection housing 1 is provided with a plurality of alarm lamps 57, each of which is provided with a plurality of alarm lamps 57. An alarm mechanism 5 is arranged inside the body 1, and its function is to sound an alarm when a vibration amplitude or frequency exceeding the safety standard is detected, so as to remind relevant personnel to take safety measures. A reset groove 510 is provided at the bottom of the alarm compartment 55. The reset groove 510 is provided at the bottom of the alarm compartment 55 so that the movable iron ball 53 can be reset to the inside of the fixed groove 52 through the reset groove 510. The trigger end of the start button 56 is located on the displacement track of the trigger plate 59. The trigger end of the start button 56 is located on the displacement track of the trigger plate 59 to ensure that the trigger end of the start button 56 can be triggered when the trigger plate 59 moves.

[0027] In this embodiment, in order to prevent the detection shell 1 from being damaged by foreign objects when it is used on the rock mass near the nuclear power plant, the fixing mechanism 3 is started, and the rotating shaft 32 rotates counterclockwise to drive the rotating rod 41 to rotate counterclockwise. During the rotation of the rotating rod 41, the force-bearing rod 43 is knocked. The force-bearing rod 43 is pushed and rotates clockwise through the supporting shaft 42. The clockwise rotation of the supporting shaft 42 drives the locking rod 44 to rotate clockwise. The locking rod 44 rotates clockwise to leave the locking groove 47. At this time, the protective plate 46 is not subject to resistance. The elasticity of the torsion spring 48 makes the control shaft 45 rotate clockwise. The clockwise rotation of the control shaft 45 drives the protective plate 46 to rotate clockwise, thereby 1 for protection, when the detection shell 1 is in the process of detection, the rock blasting exceeds the vibration amplitude or frequency of the safety standard, and the iron ball 53 inside the placement box 51 is subjected to the vibration force exceeding the safety standard, and leaves the fixed groove 52, and falls onto the trigger plate 59 through the path inside the conveying sleeve 54. The trigger plate 59 is subjected to the gravity of the iron ball 53 and moves downward by squeezing the spring 58. During the downward movement of the trigger plate 59, the trigger end of the start button 56 is pressed, so that the alarm light 57 flashes, and an alarm is sounded to remind the staff to take safety measures or reduce the blasting force. After taking safety measures or reducing the blasting force, the staff uses a tool to reset the iron ball 53 to the inside of the fixed groove 52 through the reset groove 510.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration, characterized in that: It comprises a detection housing (1), a vibration sensor (2) is arranged inside the detection housing (1), and a fixing mechanism (3) is arranged inside the detection housing (1); The fixing mechanism (3) comprises a motor (31), the top of the motor (31) is fixedly connected to the inside of the detection housing (1), the output shaft of the motor (31) is fixedly connected to a rotating shaft (32), one end of the rotating shaft (32) away from the output shaft of the motor (31) is fixedly connected to a threaded rod (33), the circumferential surface of the threaded rod (33) is threadedly connected to a threaded sleeve (34), the side of the threaded sleeve (34) is fixedly connected to a pressure rod (35), and the inside of the detection housing (1) is fixedly connected to a mounting plate ( 36), a slide groove (37) is provided on the side of the mounting plate (36), a mounting sleeve (38) is slidably connected inside the slide groove (37), the inside of the mounting sleeve (38) is fixedly connected to the circumferential surface of the vibration sensor (2), a trigger rod (39) is fixedly connected to the side of the threaded sleeve (34), a fixing plate (310) is fixedly connected to the side of the mounting plate (36), and a fixing thorn (311) is penetrated through the top of the fixing plate (310) and is slidably connected to the circumferential surface of the fixing thorn (311).

2. A detection device for rock damage caused by nuclear power negative excavation blasting vibration according to claim 1, characterized in that: A compression spring (312) is fixedly connected to the top of the fixing plate (310), one end of the compression spring (312) away from the top of the fixing plate (310) is fixedly connected to the circumferential surface of the fixing spike (311), and the circumferential surface of the threaded rod (33) is fixedly penetrated through the limiting plate (313).

3. A detection device for rock damage caused by nuclear power negative excavation blasting vibration according to claim 2, characterized in that: The bottom of the limiting plate (313) is fixedly connected to a limiting shaft (314); the circumferential surface of the limiting shaft (314) penetrates the top of the threaded sleeve (34) and is slidably connected to the top of the threaded sleeve (34).

4. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 3, characterized in that: The trigger rod (39), the fixed spike (311) and the compression spring (312) are arranged in two numbers and are symmetrical to each other along the vertical center axis of the detection housing (1); the top of the vibration sensor (2) is located on the displacement track of the compression rod (35); and the top of the fixed spike (311) is located on the displacement track of the trigger rod (39).

5. A detection device for rock damage caused by nuclear power negative excavation blasting vibration according to claim 4, characterized in that: A protection mechanism (4) is arranged inside the detection housing (1), and the protection mechanism (4) comprises a rotating rod (41), one end of the rotating rod (41) is fixedly connected to the circumferential surface of the rotating shaft (32), a side surface of the detection housing (1) is rotatably connected to a support shaft (42), the circumferential surface of the support shaft (42) is fixedly connected to a force-bearing rod (43), the circumferential surface of the support shaft (42) is fixedly connected to a locking rod (44), a side surface of the detection housing (1) is rotatably connected to a control shaft (45), the circumferential surface of the control shaft (45) is fixedly connected to a protection plate (46), and a locking groove (47) is provided inside the protection plate (46).

6. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 5, characterized in that: A torsion spring (48) is fixedly connected to the side surface of the detection housing (1); one end of the torsion spring (48) away from the side surface of the detection housing (1) is fixedly connected to the circumferential surface of the control shaft (45); and an inlay groove (49) is provided on the side surface of the detection housing (1).

7. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 6, characterized in that: The side surface of the force-bearing rod (43) is located on the displacement track of the rotating rod (41).

8. The device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 7 is characterized in that: An alarm mechanism (5) is arranged inside the detection housing (1), and the alarm mechanism (5) comprises a placement box (51), a fixing groove (52) is provided inside the placement box (51), an iron ball (53) is slidably connected inside the fixing groove (52), a conveying sleeve (54) is fixedly passed through the bottom of the placement box (51), an alarm chamber (55) is fixedly passed through the bottom of the conveying sleeve (54), a start button (56) is arranged inside the alarm chamber (55), an alarm light (57) is arranged on the side of the start button (56), a compression spring (58) is fixedly connected inside the alarm chamber (55), and a trigger plate (59) is fixedly connected to one end of the compression spring (58) away from the inside of the alarm chamber (55).

9. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 8, characterized in that: A reset groove (510) is provided at the bottom of the alarm compartment (55).

10. A device for detecting rock damage caused by nuclear power negative excavation blasting vibration according to claim 9, characterized in that: The trigger end of the start button (56) is located on the displacement track of the trigger plate (59).

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