Node seismograph suitable for water environment

Abstract

The invention discloses a seismograph suitable for water environment nodes, and relates to the technical field of marine seismic exploration, the seismograph comprises an unmanned aerial vehicle body, unmanned aerial vehicle rotor wings are installed on the unmanned aerial vehicle body, supports are symmetrically connected to the two sides of the bottom of the unmanned aerial vehicle body, and the seismograph further comprises an orientation horizontal adjusting mechanism, the direction horizontal adjusting mechanism is arranged at the center position of the bottom of the unmanned aerial vehicle body, a detection unit is mounted on the direction horizontal adjusting mechanism, the position of the detection unit is corrected and adjusted, the movable clamping mechanism is arranged on the unmanned aerial vehicle body, and a balancing weight is detachably mounted on the movable clamping mechanism. According to the invention, complete unmanned exploration is realized, the equipment putting precision degree is high, the detection point position is more accurate, the recovery is convenient and fast, the data acquisition is faster and more accurate, and the system is more suitable for working in a complex environment.

Description

Technical Field

[0001] The invention relates to the technical field of marine seismic exploration, and in particular to a seismograph suitable for a water environment node. Background Art

[0002] In recent years, seismic methods based on seismic arrays have developed rapidly and have been widely used in global and regional studies of the internal structure of the earth, earthquake geological disasters, and oil and gas field exploration and development. Traditional methods of deploying seismic arrays are all artificial ground deployment. For areas that are difficult for people to reach on foot, such as deserts and Gobi, snowy plateaus, etc., the method of deploying seismographs in the sky has been widely adopted, which has preliminarily solved the above technical problems. For example, the Chinese invention patent application with application number 2014104063796 discloses an aircraft carrier type seismic data acquisition station layout and data acquisition system, and the Chinese utility model patent with patent number 2022210766981 discloses an unmanned aerial seismograph.

[0003] However, the existing aircraft carrier-based seismic acquisition station deployment and data acquisition system and parachute-dropped seismograph and seismic array deployment methods all use parachutes to land the instruments. The following problems still exist for the underwater deployment of seismographs: First, the descent process of the seismograph equipment is uncontrollable and easily affected by the environment (such as wind and water flow), making it difficult to accurately reach the target detection point location; second, the posture of the seismograph after landing is uncontrollable, especially for target locations with uneven bottom of the water or foreign objects, the seismograph may topple over or land unsteadily, resulting in inaccurate detection data; third, it is difficult to recover the equipment after the detection mission is completed. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems existing in the prior art and provide a seismic instrument suitable for water environment nodes to realize completely unmanned exploration, with high equipment deployment accuracy, more accurate detection point location, convenient and fast recovery, faster and more accurate data collection, and better adaptability to work in complex underwater environments.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The present invention discloses a seismograph suitable for a water environment node, comprising an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body is provided with an unmanned aerial vehicle rotor, wherein four unmanned aerial vehicle rotors are connected in total, and the four unmanned aerial vehicle rotors are located at four corner positions outside the unmanned aerial vehicle body, and brackets are symmetrically connected to the two sides of the bottom of the unmanned aerial vehicle body, wherein the brackets are used to support the unmanned aerial vehicle body as a whole, and the brackets are retractable, and further comprising: an azimuth level adjustment mechanism, wherein the azimuth level adjustment mechanism is arranged at the center position of the bottom of the unmanned aerial vehicle body, and a detection unit is mounted on the azimuth level adjustment mechanism to realize correction and adjustment of the position of the detection unit, and the position of the detection unit is corrected and adjusted by the azimuth level adjustment mechanism. Correction adjustment is performed to ensure that the detection unit is perpendicular to the water bottom and the azimuth is adjusted to correspond to the north direction to ensure the acquisition of multiple component seismic data; an active clamping mechanism is arranged on the drone body, and a counterweight block is detachably installed on the active clamping mechanism; the active clamping mechanism can clamp or release the counterweight block installed thereon; an air supply component is arranged on the drone body, and air bags are symmetrically arranged on both sides of the bottom of the drone body, and the air supply component is connected with the air bag through a charging and discharging interface, and the air supply component is used to cooperate with the charging and discharging interface to automatically control the inflation and deflation of the air bag; two propeller assemblies, and the two propeller assemblies are symmetrically installed at the bottom of the drone body.

[0007] When the water environment node seismometer is in operation, the drone body takes off through the drone rotor according to the set landing point position and route, and starts to descend when it reaches the predetermined landing position. At the same time, the air supply component starts to inflate the airbag, and the airbag expands so that the drone body lands on the water surface and floats. At this time, the drone body is turned off, the propeller assembly is turned on, and the air supply component controls the airbag to start deflation, and the drone body starts to sink. The propeller assembly adjusts the angle of the drone body to paddle downward and descend. After the drone body descends to the bottom of the water, the propeller assembly is adjusted to a horizontal state, and the detection unit is adjusted through the azimuth horizontal adjustment mechanism so that the detection unit is perpendicular to the bottom of the water, and the azimuth angle is adjusted to correspond to the north direction to ensure the acquisition of multiple component seismic data, and then the seismic data recording and sending is started through the detection unit. After the seismic data acquisition is completed, the counterweight block is released through the movable clamping mechanism, and the air supply component starts to inflate the airbag so that the drone body floats to the water surface, and the drone body is turned on and takes off and returns.

[0008] Preferably, the azimuth and horizontal adjustment mechanism includes a connecting seat fixed in the drone body, and an adjusting bearing is rotatably arranged on the connecting seat, and the adjusting bearing can be rotatably adjusted on the connecting seat, and a plurality of electrically-controlled telescopic rods are vertically connected to the circumference of the adjusting bearing, and a connecting disk is fixed between the bottom ends of the plurality of electrically-controlled telescopic rods via a rotating joint, wherein the plurality of electrically-controlled telescopic rods are located on the circumference of the adjusting bearing and are distributed in a ring with equal angles, so as to realize leveling of the connecting disk through the plurality of electrically-controlled telescopic rods so that the detection unit is perpendicular to the water bottom, an azimuth and horizontal monitor is installed at the top center position of the connecting disk, and a detection unit is installed at the bottom of the connecting disk, the azimuth and horizontal monitor is used to collect the azimuth and horizontal information of the detection unit, and a spiral vertebra is fixed to the bottom of the detection unit, and the coupling effect is ensured by inserting the spiral vertebra into the water bottom medium.

[0009] Preferably, the azimuth horizontal adjustment mechanism also includes an azimuth adjustment motor, the azimuth adjustment motor is fixed inside the drone body, and a driving gear is fixed to the output end of the azimuth adjustment motor, an annular gear rack is fixed to the outside of the adjustment bearing, and the driving gear meshes with the annular gear rack. Specifically, the azimuth adjustment motor drives the driving gear to rotate, the driving gear cooperates with the annular gear rack to drive the adjustment bearing to rotate, and the adjustment bearing drives the detection unit to adjust the azimuth through the electric control telescopic rod and the connecting plate, so that the azimuth angle of the detection unit is adjusted to correspond to the north direction.

[0010] Preferably, the movable clamping mechanism includes two groups of outer movable hooks and inner movable hooks and an adjusting mechanism. The two groups of outer movable hooks and inner movable hooks are symmetrically rotatably connected on both sides of the bottom of the UAV body, and a counterweight block is fixed between the outer movable hooks and the inner movable hooks; and the two configuration blocks are symmetrical with each other about the center line of the UAV body, so that the UAV counterweight is balanced, providing stability during flight and adjustment in water.

[0011] The adjusting mechanism is transmission-connected with two groups of outer movable hooks and inner movable hooks, and the adjusting mechanism is used to drive the outer movable hooks and the inner movable hooks to clamp and release the counterweight block.

[0012] Preferably, the adjustment mechanism includes a first two-way telescopic rod and a second two-way telescopic rod fixed in the drone body, the two ends of the first two-way telescopic rod are rotatably connected to the top ends of two outer movable hooks via a connecting shaft, the two ends of the second two-way telescopic rod are rotatably connected to the top ends of two inner movable hooks via a connecting shaft, and the first two-way telescopic rod and the second two-way telescopic rod are connected to a hydraulic controller. Specifically, when the counterweight is released, the hydraulic controller controls the contraction of the movable sections at the two ends of the first two-way telescopic rod and the extension of the movable sections at the two ends of the second two-way telescopic rod. At this time, the first two-way telescopic rod and the second two-way telescopic rod respectively drive the outer movable hook and the inner movable hook to rotate and open, so that the outer movable hook and the inner movable hook release the counterweight.

[0013] Preferably, the propeller assembly includes a horizontal adjustment motor, which is fixedly installed in the drone body, and the output shaft of the horizontal adjustment motor extends to the outside of the drone body and is connected to a U-shaped conversion frame, and both ends of the U-shaped conversion frame are connected to a blade mechanism through a vertical adjustment motor.

[0014] Preferably, the paddle mechanism includes a propeller housing, and the housings on both sides of the propeller housing are respectively connected to the output shafts of the vertical adjustment motor at both ends of the U-shaped conversion frame, and a driving motor is installed inside the propeller housing, and a paddling blade is fixed on the output shaft of the driving motor. When the propeller assembly drives the drone body to adjust its position, the horizontal adjustment motor can drive the U-shaped conversion frame to drive the paddle mechanism to adjust horizontally, and the vertical adjustment motor on the U-shaped conversion frame can drive the paddle mechanism to adjust the vertical angle, so as to achieve precise control of the drone body on the water.

[0015] Preferably, the inner wall of the propeller housing is evenly provided with a plurality of flow-guiding protrusions, and a flow-guiding channel is formed between two adjacent flow-guiding protrusions in the inner wall of the propeller housing, so as to increase power and guidance through the flow-guiding channel.

[0016] Preferably, two air supply assemblies are provided, and the two air supply assemblies are symmetrically arranged on both sides of the interior of the drone body;

[0017] The air supply assembly includes a reaction box fixed inside the drone body, an electric heater is installed inside the reaction box, and the reaction box is filled with ammonium bicarbonate powder. The reaction box is connected to the airbag through a charging and discharging interface.

[0018] Preferably, the charging and discharging interface is a three-way solenoid valve, two interfaces of which are connected to the airbag and the reaction box respectively, and the third interface is exposed, and a one-way valve is provided at the outlet of the third interface. Specifically, when the air supply component inflates the airbag, the ammonium bicarbonate powder in the reaction box is heated by an electric heater to decompose and generate gas. At this time, the interfaces in the three-way solenoid valve that are connected to the airbag and the reaction box are all opened, and the exposed third interface is closed. The ammonium bicarbonate powder will decompose into ammonia, water vapor and carbon dioxide under heating conditions. The gas generated after decomposition is inflated through the charging and discharging interface for airbag. When the airbag is deflated, the interface in the three-way solenoid valve that is connected to the airbag and the exposed third interface are opened, and the gas in the airbag is automatically released through the third interface, and the one-way valve at the outlet of the exposed third interface can prevent water from entering the third interface.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the seismometer applicable to water environment nodes realizes completely unmanned exploration. When the propeller assembly drives the drone body to adjust the position, the horizontal adjustment motor can drive the U-shaped conversion frame to drive the blade mechanism to adjust the horizontal direction. At the same time, the vertical adjustment motor on the U-shaped conversion frame can drive the blade mechanism to adjust the vertical angle, thereby realizing accurate control of the drone body on the water, with higher equipment placement accuracy and more accurate detection point position.

[0020] After completing the seismic data collection, the counterweight can be released through the movable clamping mechanism, and the air supply component can be used to inflate the airbag to make the drone body float to the water surface. The drone body can then start up, take off and return, making recovery more convenient and quick.

[0021] The detection unit is installed and adjusted through the azimuth horizontal adjustment mechanism so that the detection unit is perpendicular to the water bottom and the azimuth angle is adjusted to correspond to the north direction, ensuring the acquisition of multiple component seismic data, more precise detection point location, faster and more accurate data acquisition, and more suitable for working in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a schematic diagram of the overall structure of a node seismograph suitable for a water environment;

[0023] Figure 2 Provided is a top view of a node seismograph suitable for a water environment for the present invention;

[0024] Figure 3 It is a structural schematic diagram of the azimuth level adjustment mechanism in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the movable clamping mechanism in the present invention;

[0026] Figure 5 It is a schematic diagram of the installation structure of the propeller assembly in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the propeller assembly in the present invention;

[0028] Figure 7 It is a schematic diagram of the installation structure of the air supply assembly and the air bag in the present invention;

[0029] Figure 8 It is a schematic diagram of the inflated state of the airbag in the present invention.

[0030] Figure numerals: 1. UAV body; 11. UAV rotor; 12. bracket; 2. azimuth and horizontal adjustment mechanism; 21. connecting seat; 22. adjustment bearing; 23. electric control telescopic rod; 24. connecting plate; 241. azimuth and horizontal monitor; 25. azimuth adjustment motor; 251. driving gear; 252. annular gear rack; 3. detection unit; 31. spiral vertebra; 4. movable clamping mechanism; 41. outer movable hook; 42. inner movable hook; 43. first two-way telescopic rod; 44. second two-way telescopic rod; 45. hydraulic controller; 5. counterweight; 6. air supply assembly; 61. reaction box; 62. heater; 7. charging and discharging interface; 71. airbag; 72. one-way valve; 8. propeller assembly; 81. horizontal adjustment motor; 82. U-shaped conversion frame; 83. vertical adjustment motor; 84. propeller housing; 841. guide convex part; 85. drive motor; 851. paddling blade. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 8 , further illustrating a specific implementation of a seismograph applicable to a water environment node of the present invention. The seismograph applicable to a water environment node of the present invention is not limited to the description of the following embodiments.

[0032] A seismograph suitable for water environment nodes, comprising an unmanned aerial vehicle body 1, on which is mounted an unmanned aerial vehicle rotor 11, four unmanned aerial vehicle rotors 11 are connected, and the four unmanned aerial vehicle rotors 11 are located at four corners of the outside of the unmanned aerial vehicle body 1, and brackets 12 are symmetrically connected to the bottom of the unmanned aerial vehicle body 1 on both sides, and the brackets 12 are used to support the unmanned aerial vehicle body 1 as a whole, and the brackets 12 are retractable, and also include: an azimuth level adjustment mechanism 2, which is arranged at the center of the bottom of the unmanned aerial vehicle body 1, and the azimuth level adjustment mechanism 2 is equipped with a detection unit 3 and realizes correction and adjustment of the position of the detection unit 3, and the position of the detection unit 3 is adjusted by the azimuth level adjustment mechanism 2 Correction adjustments are made to ensure that the detection unit 3 is perpendicular to the water bottom and the azimuth is adjusted to correspond to the north direction to ensure the acquisition of multiple component seismic data; an active clamping mechanism 4 is arranged on the drone body 1, and a counterweight 5 is detachably installed on the active clamping mechanism; the active clamping mechanism 4 realizes clamping or releasing the counterweight 5 installed thereon; an air supply component 6 is arranged on the drone body 1, and air bags 71 are symmetrically arranged on both sides of the bottom of the drone body 1. The air supply component 6 is connected to the air bag 71 through the charging and discharging interface 7, and the air supply component 6 is used to cooperate with the charging and discharging interface 7 to automatically control the inflation and deflation of the air bag 71; two propeller assemblies 8, and the two propeller assemblies 8 are symmetrically installed at the bottom of the drone body 1.

[0033] When the water environment node seismometer is in operation, according to the set landing point position and route, the drone body 1 takes off through the drone rotor 11, reaches the predetermined landing position and starts to descend, and at the same time, the air supply component 6 starts to inflate the airbag 71, and the airbag 71 expands so that the drone body 1 lands on the water surface and floats; at this time, the drone body 1 is turned off, the propeller component 8 is turned on, the air supply component 6 controls the airbag 71 to start deflation, the drone body 1 starts to sink, and the propeller component 8 adjusts the angle of the drone body 1 to paddle downward; after the drone body 1 descends to the bottom of the water, the propeller component 8 is adjusted to a horizontal state, and the detection unit 3 is adjusted through the azimuth horizontal adjustment mechanism 2 so that the detection unit 3 is perpendicular to the bottom of the water, and the azimuth adjustment corresponds to the north direction, so as to ensure the acquisition of multiple component seismic data, and then the seismic data recording and sending is started through the detection unit 3; after the seismic data acquisition is completed, the counterweight 5 is released through the movable clamping mechanism 4, and the air supply component 6 starts to inflate the airbag 71 so that the drone body 1 floats to the water surface, and the drone body 1 is turned on and takes off to return.

[0034] Furthermore, the azimuth and horizontal adjustment mechanism 2 includes a connecting seat 21 fixed in the drone body 1, and an adjusting bearing 22 is rotatably provided on the connecting seat 21, and the adjusting bearing 22 can be rotatably adjusted on the connecting seat 21, and a plurality of electrically controlled telescopic rods 23 are vertically connected to the peripheral side of the adjusting bearing 22, and a connecting plate 24 is fixed between the bottom ends of the plurality of electrically controlled telescopic rods 23 through a rotating joint, wherein the plurality of electrically controlled telescopic rods 23 are arranged on the peripheral side of the adjusting bearing 22 in a circular and equiangular distribution, so as to realize leveling of the connecting plate 24 by the plurality of electrically controlled telescopic rods 23 so that the detection unit 3 is perpendicular to the bottom of the water, an azimuth and horizontal monitor 241 is installed at the top center position of the connecting plate 24, and the detection unit 3 is installed at the bottom of the connecting plate 24, and the azimuth and horizontal monitor 241 is used to collect the azimuth and horizontal information of the detection unit 3, and a spiral cone 31 is fixed to the bottom of the detection unit 3, and the coupling effect is ensured by inserting the spiral cone 31 into the bottom medium.

[0035] The azimuth level adjustment mechanism 2 also includes an azimuth adjustment motor 25, which is fixed inside the drone body 1, and a driving gear 251 is fixed to the output end of the azimuth adjustment motor 25, and an annular gear rack 252 is fixed to the outside of the adjustment bearing 22, and the driving gear 251 is meshed with the annular gear rack 252. Specifically, the azimuth adjustment motor 25 drives the driving gear 251 to rotate, and the driving gear 251 cooperates with the annular gear rack 252 to drive the adjustment bearing 22 to rotate, and the adjustment bearing 22 drives the detection unit 3 to adjust the azimuth through the electric control telescopic rod 23 and the connecting plate 24, so that the azimuth angle of the detection unit 3 is adjusted to correspond to the true north direction.

[0036] Furthermore, the movable clamping mechanism 4 includes two groups of outer movable hooks 41 and inner movable hooks 42 and an adjusting mechanism. The two groups of outer movable hooks 41 and inner movable hooks 42 are symmetrically rotatably connected to both sides of the bottom of the UAV body 1, and a counterweight block 5 is fixed between the outer movable hooks 41 and the inner movable hooks 42; and the two configuration blocks 5 are symmetrical with each other about the center line of the UAV body 1, so that the UAV counterweight is balanced, providing stability for flight and adjustment in water.

[0037] The adjusting mechanism is in transmission connection with the two groups of outer movable hooks 41 and inner movable hooks 42 , and the adjusting mechanism is used to drive the outer movable hooks 41 and inner movable hooks 42 to clamp and release the counterweight 5 .

[0038] The adjustment mechanism includes a first two-way telescopic rod 43 and a second two-way telescopic rod 44 fixed in the drone body 1. The two ends of the first two-way telescopic rod 43 are rotatably connected to the top of the two outer movable hooks 41 through a connecting shaft, and the two ends of the second two-way telescopic rod 44 are rotatably connected to the top of the two inner movable hooks 42 through a connecting shaft. A hydraulic controller 45 is connected to the first two-way telescopic rod 43 and the second two-way telescopic rod 44. Specifically, when the counterweight 5 is released, the hydraulic controller 45 controls the contraction of the movable sections at the two ends of the first two-way telescopic rod 43 and the extension of the movable sections at the two ends of the second two-way telescopic rod 44. At this time, the first two-way telescopic rod 43 and the second two-way telescopic rod 44 respectively drive the outer movable hook 41 and the inner movable hook 42 to rotate and open, so that the outer movable hook 41 and the inner movable hook 42 release the counterweight.

[0039] Furthermore, the propeller assembly 8 includes a horizontal adjustment motor 81, which is fixedly installed in the drone body 1, and the output shaft of the horizontal adjustment motor 81 extends to the outside of the drone body 1 and is connected to a U-shaped conversion frame 82, and the two ends of the U-shaped conversion frame are connected to a blade mechanism through a vertical adjustment motor 83.

[0040] The paddle mechanism includes a propeller housing 84, and the housings on both sides of the propeller housing 84 are respectively connected to the output shafts of the vertical adjustment motor 83 at both ends of the U-shaped conversion frame. A driving motor 85 is installed inside the propeller housing 84, and a paddling blade 851 is fixed on the output shaft of the driving motor 85. When the propeller assembly 8 drives the drone body 1 to adjust its position, the horizontal adjustment motor 81 can drive the U-shaped conversion frame 82 to drive the paddle mechanism to adjust horizontally, and the vertical adjustment motor 83 on the U-shaped conversion frame 82 can drive the paddle mechanism to adjust the vertical angle, so as to achieve precise control of the drone body 1 on the water.

[0041] The inner wall of the propeller housing 84 is evenly provided with a plurality of flow-guiding protrusions 841 , and a flow-guiding channel is formed between two adjacent flow-guiding protrusions 841 in the inner wall of the propeller housing 84 , so as to increase power and guidance through the flow-guiding channel.

[0042] Furthermore, two air supply components 6 are provided, and the two air supply components 6 are symmetrically arranged on both sides of the interior of the drone body 1;

[0043] The air supply assembly 6 includes a reaction box 61 fixed inside the drone body 1 , an electric heater 62 is installed inside the reaction box 61 , and the reaction box 61 is filled with ammonium bicarbonate powder. The reaction box 61 is connected to the airbag 71 through the charging and discharging interface 7 .

[0044] The charging and discharging interface 7 is a three-way solenoid valve, two interfaces of which are connected to the airbag 71 and the reaction box 61 respectively, and the third interface is exposed, and a one-way valve 72 is provided at the outlet of the third interface. Specifically, when the air supply component 6 inflates the airbag 71, the ammonium bicarbonate powder in the reaction box 61 is heated by the electric heater 62 to decompose and generate gas. At this time, the interfaces in the three-way solenoid valve that are connected to the airbag 71 and the reaction box 61 are all opened, and the exposed third interface is closed. The ammonium bicarbonate powder will decompose into ammonia, water vapor and carbon dioxide under heating conditions. The gas generated after decomposition is inflated through the charging and discharging interface 7 to inflate the airbag. When the airbag 71 is deflated, the interface in the three-way solenoid valve that is connected to the airbag 71 and the exposed third interface are opened, and the gas in the airbag 71 is automatically released through the third interface, and the one-way valve at the outlet of the exposed third interface can prevent water from entering the third interface.

[0045] This kind of seismic instrument suitable for water environment nodes realizes completely unmanned exploration. When the propeller assembly 8 drives the drone body 1 to adjust the position, the horizontal adjustment motor 81 can drive the U-shaped conversion frame 82 to drive the blade mechanism to adjust the horizontal direction. At the same time, the vertical adjustment motor 83 on the U-shaped conversion frame 82 can drive the blade mechanism to adjust the vertical angle, so as to realize accurate control of the drone body 1 on the water, and the equipment is more accurate in placement and the detection point position is more accurate.

[0046] After the seismic data acquisition is completed, the counterweight 5 can be released through the movable clamping mechanism 4, and the air supply component 6 can be used to inflate the airbag 71 to make the drone body 1 float to the water surface. The drone body 1 can be turned on, take off and return, making recovery more convenient and quick.

[0047] The detection unit 3 is mounted and installed through the azimuth horizontal adjustment mechanism 2, and the detection unit 3 is adjusted through the azimuth horizontal adjustment mechanism 2 so that the detection unit 3 is perpendicular to the water bottom, and the azimuth angle is adjusted to correspond to the north direction, thereby ensuring the collection of multiple component seismic data, the detection point position is more accurate, the data collection is faster and more accurate, and it is more suitable for working in complex environments.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A seismometer suitable for a water environment node, comprising an unmanned aerial vehicle body (1), on which a drone rotor (11) is mounted, and brackets (12) are symmetrically connected to both sides of the bottom of the unmanned aerial vehicle body (1), characterized in that: Also includes: An azimuth and horizontal adjustment mechanism (2), the azimuth and horizontal adjustment mechanism (2) being arranged at the center of the bottom of the drone body (1), and a detection unit (3) being mounted on the azimuth and horizontal adjustment mechanism (2) to realize correction and adjustment of the position of the detection unit (3); A movable clamping mechanism (4) is arranged on the drone body (1), and a counterweight block (5) is detachably mounted on the movable clamping mechanism; An air supply component (6) is arranged on the drone body (1), air bags (71) are symmetrically arranged on both sides of the bottom of the drone body (1), the air supply component (6) is connected to the air bag (71) through the charging and discharging interface (7), and the air supply component (6) is used to cooperate with the charging and discharging interface (7) to automatically control the charging and discharging of the air bag (71); Two propeller assemblies (8), the two propeller assemblies (8) are symmetrically mounted on the bottom of the drone body (1).

2. A water environment node seismograph according to claim 1, characterized in that: The azimuth level adjustment mechanism (2) comprises a connection seat (21) fixed in the drone body (1), and an adjustment bearing (22) is rotatably arranged on the connection seat (21), a plurality of electrically controlled telescopic rods (23) are vertically connected to the peripheral side of the adjustment bearing (22), a connection plate (24) is fixed between the bottom ends of the plurality of electrically controlled telescopic rods (23) via a rotating joint, an azimuth level monitor is installed at the top center position of the connection plate (24), a detection unit (3) is installed at the bottom of the connection plate (24), and a spiral cone (31) is fixed to the bottom of the detection unit (3).

3. A water environment node seismograph according to claim 2, characterized in that: The azimuth level adjustment mechanism (2) further comprises an azimuth adjustment motor (25), the azimuth adjustment motor (25) being fixed inside the drone body (1), and a driving gear (251) being fixed to the output end of the azimuth adjustment motor (25), an annular gear rack (252) being fixed to the outer side of the adjustment bearing (22), and the driving gear (251) being meshed with the annular gear rack (252).

4. A water environment node seismograph according to claim 1, characterized in that: The movable clamping mechanism (4) comprises two groups of outer movable hooks (41) and inner movable hooks (42) and an adjusting mechanism, wherein the two groups of outer movable hooks (41) and inner movable hooks (42) are symmetrically rotatably connected to two sides of the bottom of the drone body (1), and a counterweight (5) is fixed between the outer movable hooks (41) and the inner movable hooks (42); The adjusting mechanism is in transmission connection with two groups of outer movable hooks (41) and inner movable hooks (42), and the adjusting mechanism is used to drive the outer movable hooks (41) and the inner movable hooks (42) to clamp and release the counterweight (5).

5. A water environment node seismograph according to claim 4, characterized in that: The adjustment mechanism comprises a first bidirectional telescopic rod (43) and a second bidirectional telescopic rod (44) fixed in the drone body (1); two ends of the first bidirectional telescopic rod (43) are rotatably connected to the top ends of two outer movable hooks (41) via a connecting shaft; two ends of the second bidirectional telescopic rod (44) are rotatably connected to the top ends of two inner movable hooks (42) via a connecting shaft; and a hydraulic controller (45) is connected to the first bidirectional telescopic rod (43) and the second bidirectional telescopic rod (44).

6. A water environment node seismograph according to claim 1, characterized in that: The propeller assembly (8) comprises a horizontal adjustment motor (81), the horizontal adjustment motor (81) is fixedly mounted in the drone body (1), and the output shaft of the horizontal adjustment motor (81) extends to the outside of the drone body (1) and is connected to a U-shaped conversion frame (82), and the two ends of the U-shaped conversion frame are connected to a blade mechanism via a vertical adjustment motor (83).

7. A water environment node seismograph according to claim 6, characterized in that: The paddle mechanism comprises a propeller housing (84), the shells on both sides of the propeller housing (84) are respectively connected to the output shafts of the vertical adjustment motor (83) at the two ends of the U-shaped conversion frame, a driving motor (85) is installed inside the propeller housing (84), and a paddling blade (851) is fixed on the output shaft of the driving motor (85).

8. A node seismograph suitable for water environment according to claim 7, characterized in that: The inner wall of the propeller housing (84) is evenly provided with a plurality of flow-guiding protrusions (841), and a flow-guiding channel is formed between two adjacent flow-guiding protrusions (841) in the inner wall of the propeller housing (84).

9. A water environment node seismograph according to claim 1, characterized in that: Two air supply components (6) are provided, and the two air supply components (6) are symmetrically arranged on both sides of the interior of the drone body (1); The air supply assembly (6) comprises a reaction box (61) fixed inside the drone body (1), an electric heater (62) is installed inside the reaction box (61), and the reaction box (61) is filled with ammonium bicarbonate powder. The reaction box (61) is connected to the air bag (71) through the charging and discharging interface (7).

10. A node seismograph suitable for water environment according to claim 9, characterized in that: The charging and discharging interface (7) is a three-way solenoid valve, two interfaces of which are respectively connected to the airbag (71) and the reaction box (61), and the third interface is exposed, and a one-way valve (72) is provided at the outlet end of the third interface.

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