Buoy platform for seismic exploration

Abstract

The utility model discloses a buoy platform for seismic detection, and relates to the technical field of seismic detection. The device comprises a buoy table, and seismic detection equipment is arranged on the buoy table and connected with a detection head arranged on the seabed through a signal cable; the detection head is used for transmitting a detected seismic signal to the seismic detection equipment through a signal cable; a counterweight anchor block is arranged below the buoy table; an expansion stabilizing device is arranged on the counterweight anchor block; the expansion stabilizing device comprises a plurality of grooves evenly formed in the edge of the balance weight anchor block in the circumferential direction. A plurality of extension rods are uniformly distributed on the counterweight anchor block in the circumferential direction; the extension rod is arranged along the radial direction of the counterweight anchor block; the extension rods are in one-to-one correspondence with the grooves; and one end of each extension rod is hinged in the corresponding groove. The marine buoy table has the advantages that the stability of the buoy table placed in the ocean can be improved, and the long-term reliability of marine seismic exploration work is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of earthquake detection technology, and in particular to a buoy platform for earthquake detection. Background Technology

[0002] Seismic exploration is a geophysical exploration method that utilizes the differences in elasticity and density of underground media to infer the properties and morphology of underground rock strata by observing and analyzing the Earth's response to artificially induced seismic waves. When conducting seismic exploration in the ocean, it is necessary to place corresponding buoy platforms at specific coordinates on the sea surface. These buoy platforms, floating on the sea surface, support the installation of corresponding seismic exploration equipment. However, due to the influence of seawater fluctuations and waves, existing buoy platforms are prone to severe swaying. Furthermore, since signal cables need to extend into the seabed, twisting during buoy platform swaying can easily cause mooring cables to become entangled with signal cables, affecting the normal operation of seismic exploration work. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a buoy platform for earthquake detection, which can improve the stability of the buoy platform in the ocean and ensure the long-term reliability of marine earthquake detection work, in order to address the above-mentioned technical deficiencies.

[0004] The technical solution adopted by this utility model is as follows: a buoy platform for earthquake detection is provided, including a buoy platform, an earthquake detection device is provided on the buoy platform, and the earthquake detection device is connected to a probe head placed on the seabed via a signal cable; the probe head is used to transmit the detected earthquake signal to the earthquake detection device via the signal cable; a counterweight anchor block is provided below the buoy platform; and an extended stabilizing device is provided on the counterweight anchor block.

[0005] The extended stabilizing device includes multiple grooves evenly spaced circumferentially along the edge of the counterweight anchor block; multiple extension rods evenly distributed circumferentially on the counterweight anchor block; the extension rods are arranged radially along the counterweight anchor block; each extension rod corresponds to a groove; one end of each extension rod is hinged to the corresponding groove; the hinged rotation of the multiple extension rods is used to converge towards or move away from the axis of the counterweight anchor block; the ends of the extension rods away from the grooves are respectively connected to a rope-laying device installed on the buoy platform via mooring cables; the counterweight anchor block is provided with a blocking mechanism for limiting the extension rods.

[0006] The blocking mechanism includes a liquid injection cover that is sealed and fixed to the upper end of the counterweight anchor block; multiple liquid injection sleeves are connected circumferentially on the outside of the liquid injection cover; each liquid injection sleeve corresponds to a groove; a sliding plug is slidably connected inside the liquid injection sleeve; a blocking rod is fixed on the sliding plug; the blocking rod seals through the outer end of the liquid injection sleeve; when the sliding plug is blocked by the outer end of the liquid injection sleeve, the blocking rod is blocked above the groove in a corresponding manner; the liquid injection cover is connected to a hydraulic power device installed on the buoy platform through a hydraulic oil pipe.

[0007] To further optimize this technical solution, the number of extension rods of a buoy platform used for earthquake detection is at least three.

[0008] To further optimize this technical solution, a load-bearing block is fixed to the end of the extension rod of a buoy platform used for earthquake detection, away from the groove.

[0009] To further optimize this technical solution, the length of the extension rod of a buoy platform used for earthquake detection is greater than the radius of the buoy platform.

[0010] The beneficial effects of this utility model are as follows:

[0011] The counterweight anchor is heavy enough to sink to the seabed and be firmly positioned. Combined with the mooring cable, it pulls and limits the buoy platform, effectively preventing it from drifting too far in the sea.

[0012] The counterweight anchor block has multiple grooves evenly distributed around its edge. One end of the extension rod is hinged to the corresponding groove. The hinged rotation of the multiple extension rods is used to converge or move away from the axis of the counterweight anchor block. As the counterweight anchor block sinks into the seabed, the extension rods can be hinged to rotate and separate and expand apart.

[0013] The end of the extension rod furthest from the groove is connected to the rope-laying equipment installed on the buoy platform via mooring cables. After the extension rod is separated and deployed, the connection points between the mooring cables and the end of the extension rod can be separated from each other by a large range on the seabed. This allows multiple mooring cables to exert pulling restrictions on multiple points on the buoy platform. Moreover, the separation of the pulling forces within a certain range can effectively prevent the buoy platform from twisting and ensure that the signal cables do not get tangled with the mooring cables. Attached Figure Description

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 A schematic diagram of the extended stabilizing device;

[0016] Figure 3 This is a schematic diagram of the structure after a partial cross-section of the blocking mechanism.

[0017] In the diagram, 1. Buoy platform; 2. Seismic detection equipment; 3. Signal cable; 4. Detector head; 5. Counterweight anchor block; 6. Groove; 7. Extension rod; 8. Mooring line; 9. Rope deployment equipment; 10. Liquid injection cover; 11. Liquid injection sleeve; 12. Sliding plug; 13. Stop bar; 14. Hydraulic oil pipe; 15. Hydraulic power equipment; 16. Weight block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 As shown, a buoy platform for earthquake detection includes a buoy platform 1, an earthquake detection device 2 mounted on the buoy platform 1, and a probe head 4 placed on the seabed connected to the earthquake detection device 2 via a signal cable 3; the probe head 4 is used to transmit the detected earthquake signal to the earthquake detection device 2 via the signal cable 3; a counterweight anchor block 5 is provided below the buoy platform 1; and an extended stabilizing device is provided on the counterweight anchor block 5.

[0020] like Figure 1-2 As shown, the extended stabilizing device includes multiple grooves 6 evenly spaced circumferentially along the edge of the counterweight anchor block 5; multiple extension rods 7 are evenly distributed circumferentially on the counterweight anchor block 5; the extension rods 7 are arranged radially along the counterweight anchor block 5; each extension rod 7 corresponds to a groove 6; one end of each extension rod 7 is hinged to the corresponding groove 6; the hinged rotation of the multiple extension rods 7 is used to converge towards or move away from the axis of the counterweight anchor block 5; the ends of the extension rods 7 away from the grooves 6 are respectively connected to the rope-releasing device 9 installed on the buoy platform 1 via mooring cables 8; the counterweight anchor block 5 is provided with a blocking mechanism for limiting the extension rods 7.

[0021] like Figure 1-3 As shown, the blocking mechanism includes a liquid injection cover 10 that is sealed and fixed to the upper end of the counterweight anchor block 5; multiple liquid injection sleeves 11 are connected circumferentially on the outer side of the liquid injection cover 10; the liquid injection sleeves 11 correspond one-to-one with the grooves 6; a sliding plug 12 is slidably connected inside the liquid injection sleeve 11; a blocking rod 13 is fixed on the sliding plug 12; the blocking rod 13 seals through the outer end of the liquid injection sleeve 11; when the sliding plug 12 is blocked by the outer end of the liquid injection sleeve 11, the blocking rod 13 is blocked above the groove 6 one-to-one; the liquid injection cover 10 is connected to the hydraulic power equipment 15 installed on the buoy platform 1 through a hydraulic oil pipe 14.

[0022] After the buoy platform 1 is positioned at the designated location in the ocean, the mooring cable 8 is gradually lowered using the rope-laying device 9, sinking the counterweight anchor block 5 to the seabed for positioning. Then, the hydraulic power device 15 is activated to inject hydraulic oil into the injection shroud 10 through the hydraulic oil pipe 14. Through the hydraulic effect, the sliding plug 12 is pushed along the injection sleeve 11, causing the blocking rod 13 to move outwards. This pushes the extension rods 7, which are converged at the axis of the counterweight anchor block 5, to move separately, causing the extension rods 7 to hinge along the groove 6 until they expand. Figure 1 As shown, in this state, the mooring cables 8 connected to the extension rod 7 can be separated from each other by a large range, and then the mooring cables 8 can be straightened and locked by the rope release device 9.

[0023] After the multiple mooring lines 8 are dispersed and extended, the buoy platform 1 is pulled and restricted at multiple points, which can greatly improve the stability of the buoy platform 1 floating in the seawater and avoid the problem of the buoy platform 1 drifting over a large area due to wind and waves. Moreover, the pulling of the mooring lines 8 distributed in the circumferential direction can effectively improve the torsional resistance of the buoy platform 1. The signal cable 3 extending into the water will not get tangled with the mooring lines 8, ensuring the stable detection of seismic signals by the seabed probe 4 and the long-term reliability of the detection signals transmitted through the signal cable 3.

[0024] It should be noted that the rope-laying device 9 (such as a winch) and the hydraulic power device 15 (such as a hydraulic oil pump) in this technical solution are well-known technical means and are not the design focus of this solution, so their specific structures will not be described in detail.

[0025] like Figure 1 As shown, the number of extension rods 7 is at least three. Setting at least three extension rods 7 ensures the balance of the mooring cable 8's distributed pulling points after the extension rods 7 are extended on the seabed, and ensures the stable and balanced positioning of the buoy platform 1. If only two extension rods 7 are set, the buoy platform may tilt back and forth to the side when the seawater rises and falls, while setting three or more can effectively improve the buoy platform 1's anti-tilting ability.

[0026] like Figure 1-2 As shown, a weight block 16 is fixed to the end of the extension rod 7 away from the groove 6. The gravity of the weight block 16 can assist the extension rod 7 in its expansion and unfolding action, reduce the pressure required for the hydraulically driven slide 12 to move, and help improve the reliability of the blocking mechanism.

[0027] like Figure 1 As shown, the length of the extension rod 7 is greater than the radius of the buoy platform 1. After the extension rod 7 is extended, the range of separation between the lower ends of the mooring cables 8 is greater than that between the upper ends. This structure can further enhance the ability of the buoy platform 1 to resist seawater waves and improve its stability when deployed in seawater.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A buoy platform for seismic detection, comprising a buoy platform (1) and a seismic detection device (2) mounted on the buoy platform (1), characterized in that: The seismic detection equipment (2) is connected to a probe (4) placed on the seabed via a signal cable (3); the probe (4) is used to transmit the detected seismic signal to the seismic detection equipment (2) via the signal cable (3); a counterweight anchor block (5) is provided below the buoy platform (1); an extended stabilizing device is provided on the counterweight anchor block (5); The extended stabilizing device includes multiple grooves (6) evenly spaced along the circumference of the edge of the counterweight anchor block (5); multiple extension rods (7) are evenly distributed along the circumference of the counterweight anchor block (5); the extension rods (7) are arranged radially along the counterweight anchor block (5); the extension rods (7) correspond one-to-one with the grooves (6); one end of the extension rod (7) is hinged to the corresponding groove (6); the hinged rotation of the multiple extension rods (7) is used to converge or move away from the axis of the counterweight anchor block (5); the end of the extension rod (7) away from the groove (6) is connected to the rope release device (9) installed on the buoy platform (1) through the mooring cable (8); the counterweight anchor block (5) is provided with a blocking mechanism for limiting the extension rods (7); The blocking mechanism includes a liquid injection cover (10) that is sealed and fixed to the upper end of the counterweight anchor block (5); a plurality of liquid injection sleeves (11) are connected circumferentially on the outside of the liquid injection cover (10); the liquid injection sleeves (11) correspond one-to-one with the grooves (6); a sliding plug (12) is slidably connected inside the liquid injection sleeve (11); a blocking rod (13) is fixed on the sliding plug (12); the blocking rod (13) seals through the outer end of the liquid injection sleeve (11); when the sliding plug (12) is blocked by the outer end of the liquid injection sleeve (11), the blocking rod (13) blocks above the grooves (6) one-to-one; the liquid injection cover (10) is connected to the hydraulic power equipment (15) installed on the buoy platform (1) through the hydraulic oil pipe (14).

2. A buoy platform for earthquake detection according to claim 1, characterized in that: The number of extension rods (7) is at least three.

3. A buoy platform for earthquake detection according to claim 1, characterized in that: A weight block (16) is fixed to the end of the extension rod (7) away from the groove (6).

4. A buoy platform for earthquake detection according to claim 1, characterized in that: The length of the extension rod (7) is greater than the radius of the buoy platform (1).

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