Seismic source generating device for geophysical exploration and use method

Abstract

The invention relates to the technical field of seismic source generating devices, in particular to a seismic source generating device for geophysical exploration and a using method thereof.The seismic source generating device for geophysical exploration comprises a vehicle body, a limiting unit, a supporting unit, a storage unit and a seismic source unit; the limiting telescopic mechanism is connected with the side wall of a storage box of the storage unit, the side, away from the vehicle head, of the storage box is connected with a first supporting mechanism of the supporting unit, the lower portion of the limiting telescopic mechanism is connected with a second supporting mechanism, a seismic source cavity is formed in the side, close to the vehicle head, of the storage box, and a seismic source generating mechanism of the seismic source unit is arranged in the seismic source cavity. According to the seismic source generating device for geophysical exploration and the using method, the first supporting frame or the second supporting telescopic frame is selected for auxiliary supporting according to different terrain inclination angles, and the stability of the vehicle body is improved so as to adapt to different terrains.

Description

Technical Field

[0001] This invention relates to the field of seismic source generating device technology, and in particular to a seismic source generating device for geophysical exploration and its usage method. Background Technology

[0002] Geophysical exploration is a technical means of detecting underground geological structures, mineral resources, and hydrogeological conditions by observing and analyzing changes in geophysical fields (such as gravity, magnetic fields, and seismic waves). It is widely used in oil and gas resource exploration, mineral prospecting, and engineering geological surveys. Among these, seismic exploration is one of the most commonly used techniques. Its core principle is to artificially generate seismic waves (seismic source) and use the propagation characteristics (reflection, refraction, etc.) of seismic waves in different strata to invert underground structures. The seismic source generator, as a key piece of equipment in seismic exploration, transmits controlled vibration signals underground, and the reflected waves are analyzed to achieve resource exploration or geological structure detection.

[0003] Exploration areas often involve complex terrains such as mountains, hills, and deserts, where the ground may be sloping, soft, or uneven. Traditional seismic source devices often have fixed support structures, making it difficult to adjust their height or angle according to the terrain. This results in poor contact between the source unit and the ground, low efficiency in vibration energy transfer, and even safety risks due to equipment tilting. Summary of the Invention

[0004] The purpose of this invention is to provide a seismic source generating device and its usage method for geophysical exploration. Depending on the terrain tilt angle, a first support frame or a second support telescopic frame is selected for auxiliary support to improve the stability of the vehicle body and adapt to different terrains.

[0005] To achieve the above objectives, the present invention provides a seismic source generating device for geophysical exploration, comprising a vehicle body, a limiting unit, a supporting unit, a storage unit, and a seismic source unit. The limiting unit has a limiting telescopic mechanism inside the placement cavity of the vehicle body. The limiting telescopic mechanism is connected to the side wall of the storage box of the storage unit. The side of the storage box away from the front of the vehicle is connected to the first supporting mechanism of the supporting unit. The lower part of the limiting telescopic mechanism is connected to the second supporting mechanism. The side of the storage box near the front of the vehicle has a seismic source cavity, and the seismic source generating mechanism of the seismic source unit is located inside the seismic source cavity.

[0006] Preferably, the first limiting telescopic slide rail of the limiting telescopic mechanism is connected to the side wall of the placement cavity, the inner slide rail of the first limiting telescopic slide rail is connected to the side wall of the storage box, the storage box is provided with a plurality of storage slots, and a first adjustment slot and a second adjustment slot are formed between adjacent storage slots, and both the first adjustment slot and the second adjustment slot are hinged to the first support mechanism.

[0007] Preferably, the first rotating rod and the second rotating rod of the first support mechanism are respectively hinged to the first adjusting groove, the first rotating rod and the second rotating rod are connected to the first support frame, the first support frame is hinged to the middle of the first limiting rod, the end of the first limiting rod away from the first support frame is hinged to the limiting slider, and the limiting slider is slidably connected to the first limiting slide rail at the bottom of the placement cavity.

[0008] Preferably, the source generating mechanism has a source generating frame connected to a source cavity, a source hydraulic cylinder of the source generating frame connected to a vibrating hammer, a source plate provided below the vibrating hammer, a source through hole provided below the source plate in the source cavity, and a moving hydraulic cylinder on the source generating frame connected to the source plate.

[0009] Preferably, the top of the second support telescopic frame of the second support mechanism is connected to the second limiting telescopic slide rail, the second limiting telescopic slide rail is located below the first limiting telescopic slide rail, the top and bottom of the second support telescopic frame are connected by a hinge rod assembly, adjacent hinge rod assemblies are connected by a first connecting plate and a second connecting plate respectively, the first connecting plate is provided with a lifting motor, and the lifting threaded rod threaded to the second connecting plate is connected to the lifting motor.

[0010] Preferably, a first support cylinder is symmetrically hinged to the first support frame, a caster wheel is provided at the end of the first support rod connected to the first support cylinder, and a handrail is provided below the first support frame.

[0011] Preferably, the first locking plate on the first support frame is connected to the second locking plate at the end of the first limiting slide rail by a locking lock, and the mounting seat of the first support cylinder is connected to the first rotating motor on the first support frame.

[0012] The above-mentioned method of using a seismic source generating device for geophysical exploration includes the following steps: S1. Drive the vehicle to the exploration site, unlock the locking mechanism and pull out the storage box and the first support mechanism; S2. When the first support mechanism is opened, after the first support mechanism is completely moved out of the placement cavity, the first rotating motor is started to release the first support cylinder and the first support rod. The first support cylinder is started to make the caster wheel contact the ground and take out the tools and accessories to be used from the storage box. S3. Retract the first support mechanism, start the moving hydraulic cylinder, and drive the vibratory source plate through the vibratory source through hole to contact the ground until the vehicle body leaves the ground. Choose whether to use the second support mechanism according to the terrain. S4. Start the hydraulic cylinder of the vibratory source, the vibratory hammer contacts the vibratory source plate, the vibratory source plate contacts the ground and generates vibration; S5. After the operation is completed, retrieve the vibratory hammer and the vibratory source plate, unfold the first support mechanism again, put the tools and accessories into the storage box, and then retrieve the second support mechanism and the first support mechanism in sequence. Use the locking lock to lock the first locking plate and the second locking plate together.

[0013] Preferably, in S3, when the tilt angle of the ground is greater than 10°, the second support mechanism is activated before the vehicle body leaves the ground. When in use, the second limit telescopic slide rail is activated to move the second support telescopic frame out of the placement cavity, and the lifting motor is activated to drive the bottom of the second support telescopic frame to contact the ground.

[0014] Preferably, in S4, the impact force and vibration frequency of the vibratory hammer are adjusted by controlling the hydraulic cylinder of the seismic source according to the exploration requirements.

[0015] Therefore, the present invention employs the above-described geophysical exploration seismic source generating device and its usage method, the beneficial effects of which are: 1. In the seismic source generating device provided by the present invention, a first support frame or a second support telescopic frame is selected for auxiliary support according to different terrain tilt angles to improve the stability of the vehicle body and adapt to different terrains; 2. The storage box can be used to store miscellaneous tools such as sensors and cables in a categorized manner. The first and second adjustment slots also serve as storage space for the first support mechanism, providing adjustable space for the first support frame within a small range. 3. The first locking plate and the second locking plate are connected by a locking lock, forming a rigid fixation after the first support frame is retracted, preventing the storage box or the first support mechanism from sliding out during transportation.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a seismic source generating device for geophysical exploration according to the present invention (the second support telescopic frame is not shown); Figure 2 This is a bottom view of the first support frame and storage box in this invention; Figure 3 This is a schematic diagram of the second support telescopic frame in this invention; Figure 4 This is a schematic diagram of the seismic source unit in this invention.

[0018] Figure label: 1. Vehicle body; 11. Placement cavity; 12. Seismic source cavity; 2. Limiting unit; 21. First limiting telescopic slide rail; 22. Second limiting telescopic slide rail; 23. First limiting slide rail; 3. Support unit; 31. First support frame; 32. Second support telescopic frame; 33. First rotating rod; 34. Second rotating rod; 35. First limiting rod; 36. Limiting slider; 37. Hinge rod assembly; 38. Lifting motor; 39. Lifting threaded rod; 310. First connecting plate; 311. Second connecting plate; 312. First support cylinder; 313. Caster wheel; 314. First locking plate; 315. Second locking plate; 4. Storage unit; 41. Storage box; 42. First adjustment slot; 43. Second adjustment slot; 44. Storage slot; 5. Seismic source unit; 51. Seismic source generator frame; 52. Seismic source hydraulic cylinder; 53. Vibratory hammer; 54. Seismic source plate; 55. Moving hydraulic cylinder; 56. Limiting rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Unless otherwise defined, the technical or scientific terms used in this invention should be understood in their ordinary sense by those skilled in the art. The features mentioned above or in the specific examples mentioned in this invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the invention and are not intended to limit the scope of the invention.

[0020] Example 1 like Figures 1-4 As shown, this invention provides a seismic source generating device for geophysical exploration, including a vehicle body 1, a limiting unit 2, a supporting unit 3, a storage unit 4, and a seismic source unit 5. The limiting unit 2 has a limiting telescopic mechanism within its placement cavity 11, which is connected to the side wall of the storage box 41 of the storage unit 4. The side of the storage box 41 furthest from the vehicle's front is connected to a first supporting mechanism of the supporting unit 3, and the lower part of the limiting telescopic mechanism is connected to a second supporting mechanism. A seismic source cavity 12 is located on the side of the storage box 41 closest to the vehicle's front, and the seismic source generating mechanism of the seismic source unit 5 is housed within the seismic source cavity 12.

[0021] The vehicle body 1 facilitates the movement of the entire seismic source generating device. The first limiting telescopic slide rail 21 and the second limiting telescopic slide rail 22 of the limiting unit 2 respectively limit the movement range of the first support mechanism and the second support mechanism. The first support mechanism supports the storage box 41, and the second support mechanism, when the ground is tilted, assists the seismic source unit 5 in supporting the vehicle body 1. The impact force generated by the seismic source generating device is evenly transmitted to the ground, forming seismic waves that propagate underground.

[0022] The first limiting telescopic slide rail 21 of the limiting telescopic mechanism is connected to the side wall of the placement cavity 11, and the inner slide rail of the first limiting telescopic slide rail 21 is connected to the side wall of the storage box 41. The storage box 41 is provided with a plurality of storage slots 44, and a first adjustment slot 42 and a second adjustment slot 43 are formed between adjacent storage slots 44. Both the first adjustment slot 42 and the second adjustment slot 43 are hinged to the first support mechanism.

[0023] The outer slide rail of the first limiting telescopic slide rail 21 is connected to the side wall of the placement cavity 11, and the inner slide rail of the first limiting telescopic slide rail 21 is connected to the side wall of the storage box 41. The storage box 41 can be pulled out or retracted by sliding the inner slide rail within the outer slide rail. The storage box 41 has several storage slots 44 of different sizes to facilitate the classified storage of tools and accessories (such as sensors, cables, etc.) of different sizes, preventing damage during transportation. There are two first adjustment slots 42. The first adjustment slots 42 and the second adjustment slots 43 provide storage space for the first support mechanism.

[0024] The first rotating rod 33 and the second rotating rod 34 of the first support mechanism are respectively hinged to the first adjusting groove 42. The first rotating rod 33 and the second rotating rod 34 are connected to the first support frame 31. A first limiting rod 35 is hinged to the middle of the first support frame 31. A limiting slider 36 is hinged to the end of the first limiting rod 35 away from the first support frame 31. The limiting slider 36 is slidably connected to the first limiting slide rail 23 at the bottom of the placement cavity 11.

[0025] When the storage box 41 is pulled out, the first rotating rod 33 and the second rotating rod 34 rotate around the hinge axis with the first adjusting groove 42, respectively, causing the first support frame 31 to unfold from the folded state to a state perpendicular to the ground. During the process of pulling out the storage box 41, the limiting slider 36 slides along the first limiting slide rail 23, limiting the movement trajectory of the first support frame 31. The first support frame 31 is hinged to the limiting slider 36, which facilitates the adjustment of the position of the first support frame 31 according to the terrain. At the same time, the first adjusting groove 42 and the second adjusting groove 43 limit the adjustment range of the first support frame 31.

[0026] The source generating mechanism has a source generating frame 51 connected to a source cavity 12, and a source hydraulic cylinder 52 connected to a vibrating hammer 53. A source plate 54 is provided below the vibrating hammer 53, and a source through hole is provided below the source plate 54 in the source cavity 12. The source plate 54 is connected to a movable hydraulic cylinder 55 on the source generating frame 51.

[0027] The movable hydraulic cylinder 55 drives the seismic source plate 54 to move up and down. Simultaneously, the limiting rod 56 connected to the seismic source plate 54 is connected to the connecting plate connected to the movable hydraulic cylinder 55. The limiting rod 56 is a flexible connecting rod, allowing for some movement of the seismic source plate 54 during vibration. The seismic source hydraulic cylinder 52 drives the vibratory hammer 53 to reciprocate at high frequency, generating vibration by impacting the seismic source plate 54. The seismic source plate 54 evenly transmits the impact force of the vibratory hammer 53 to the ground, forming seismic waves propagating underground. The seismic source through-hole provides a movement channel for the seismic source plate 54, avoiding interference with the vehicle body 1 structure.

[0028] The top of the second support telescopic frame 32 of the second support mechanism is connected to the second limiting telescopic slide rail 22, which is located below the first limiting telescopic slide rail 21. The top and bottom of the second support telescopic frame 32 are connected by hinge rod assemblies 37, and adjacent hinge rod assemblies 37 are connected by a first connecting plate 310 and a second connecting plate 311, respectively. A lifting motor 38 is provided on the first connecting plate 310, and a lifting threaded rod 39 threadedly connected to the second connecting plate 311 is connected to the lifting motor 38. The top of the second support telescopic frame 32 contacts the partition plate below the first support frame 31. The length of the top of the second support telescopic frame 32 near the vibrating source unit 5 is greater than the length of the bottom, so that when the second support telescopic frame 32 is deployed, the top of the second support telescopic frame 32 contacts the partition plate to complete the support process.

[0029] The second support mechanism provides auxiliary support on sloping terrain, compensating for the ground slope through height adjustment and enhancing overall stability. The second telescopic support frame 32 is located below the storage box 41 and the first support mechanism. The outer slide rail of the second limiting telescopic slide rail 22 is connected to the side wall of the placement cavity 11, and the inner slide rail of the second limiting telescopic slide rail 22 is connected to the connecting block at the top of the second telescopic support frame 32. A pushing cylinder is installed inside the placement cavity 11, connected to the connecting block, to extend or retract the second telescopic support frame 32 into or out of the placement cavity 11.

[0030] The hinge rod assembly 37 includes a first hinge rod and a second hinge rod that are cross-hinged. The top and bottom of the second support telescopic frame 32 are hinged to the first and second hinge rods, respectively. There are two hinge rod assemblies 37 on one side of the second support telescopic frame 32, providing a stable telescopic structure for the second support telescopic frame 32. The lifting motor 38 drives the lifting threaded rod 39 to rotate. The lifting threaded rod 39 is threadedly engaged with the second connecting plate 311, pushing the hinge rod assembly 37 to unfold or retract, thereby adjusting the height of the second support telescopic frame 32. After adjustment, the bottom of the second support telescopic frame 32 contacts the ground and cooperates with the seismic source plate 54 to counteract the lateral force of the inclined ground.

[0031] A first support cylinder 312 is symmetrically hinged to the first support frame 31. A caster wheel 313 is provided at the end of the first support rod connected to the first support cylinder 312. A handrail is provided below the first support frame 31. The height of the caster wheel 313 is adjusted by the first support cylinder 312, allowing the caster wheel 313 to contact the ground, facilitating the quick pulling of the storage box 41 out of the placement slot, while also providing auxiliary support within a small angle range. The first support cylinder 312 can rotate relative to the first support frame 31, facilitating the retraction of the first support mechanism into the bottom of the storage box. The caster wheel 313 is equipped with a braking structure, as is common in the art. When the caster wheel 313 moves to a designated position, the braking structure is activated to prevent further movement of the caster wheel 313.

[0032] The first locking plate 314 on the first support frame 31 is connected to the second locking plate 315 at the end of the first limiting slide rail 23 by a locking lock, and the mounting seat of the first support cylinder 312 is connected to the first rotating motor on the first support frame 31.

[0033] After the first support mechanism and storage box 41 are retracted into the placement cavity 11, a locking lock secures the first support frame 31 to the first limiting slide rail 23. The locking structure is existing technology and will not be described in detail. This prevents the first support mechanism and storage box 41 from sliding out. The first rotating motor rotates the first support cylinder 312 and the universal wheel 313, causing them to retract or extend from the bottom of the storage box 41.

[0034] Example 2 The method of using a seismic source generating device for geophysical exploration in Example 1 includes the following steps: S1. Drive vehicle 1 to the exploration site, unlock the lock and pull out the storage box 41 and the first support mechanism.

[0035] S2. When the first support mechanism is opened, after the caster wheel 313 of the first support mechanism is fully moved out of the placement cavity 11, the first rotating motor is started to release the first support cylinder 312 and the first support rod. The first rotating motor is started to make the first support rod perpendicular to the ground, and the first support cylinder 312 is started to make the caster wheel 313 contact the ground. The tools and accessories to be used can be taken out from the storage box 41.

[0036] S3. Retract the first support mechanism, start the moving hydraulic cylinder 55, and drive the seismic source plate 54 through the seismic source through hole to contact the ground until the vehicle body 1 leaves the ground. Choose whether to use the second support mechanism according to the terrain.

[0037] When the ground tilt angle is greater than 10°, the second support mechanism is activated before the vehicle body 1 leaves the ground, and the second limit telescopic slide rail 22 is activated during use. The second support telescopic frame 32 moves out of the placement cavity 11 and the top of the second support telescopic frame 32 contacts the partition plate, and the lifting motor 38 is activated to drive the bottom of the second support telescopic frame 32 to contact the ground.

[0038] S4. Start the seismic source hydraulic cylinder 52. The vibratory hammer 53 contacts the seismic source plate 54. The seismic source plate 54 contacts the ground and generates vibration. According to the exploration requirements, the impact force and vibration frequency of the vibratory hammer 53 are adjusted by controlling the seismic source hydraulic cylinder 52.

[0039] S5. After the operation is completed, retract the vibratory hammer 53 and the vibratory source plate 54, unfold the first support mechanism again, put the tools and accessories into the storage box 41, and retract the second support mechanism and the first support mechanism in sequence. Use the locking lock to lock the first locking plate 314 and the second locking plate 315 together.

[0040] Therefore, the present invention adopts the above-mentioned seismic source generating device and method for geophysical exploration, and selects a first support frame or a second support telescopic frame for auxiliary support according to different terrain tilt angles to improve the stability of the vehicle body and adapt to different terrains.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A seismic source generating device for geophysical exploration, characterized in that: It includes a vehicle body, a limiting unit, a support unit, a storage unit, and a vibration source unit. The limiting unit has a limiting telescopic mechanism inside the placement cavity of the vehicle body. The limiting telescopic mechanism is connected to the side wall of the storage box of the storage unit. The side of the storage box away from the front of the vehicle is connected to the first support mechanism of the support unit. The lower part of the limiting telescopic mechanism is connected to the second support mechanism. The vibration source cavity is located on the side of the storage box near the front of the vehicle. The vibration source cavity contains the vibration source generating mechanism of the vibration source unit.

2. The seismic source generating device for geophysical exploration according to claim 1, characterized in that: The first limiting telescopic slide rail of the limiting telescopic mechanism is connected to the side wall of the placement cavity, and the inner slide rail of the first limiting telescopic slide rail is connected to the side wall of the storage box. The storage box is provided with several storage slots, and a first adjustment slot and a second adjustment slot are formed between adjacent storage slots. Both the first adjustment slot and the second adjustment slot are hinged to the first support mechanism.

3. The seismic source generating device for geophysical exploration according to claim 1, characterized in that: The first rotating rod and the second rotating rod of the first support mechanism are respectively hinged to the first adjusting groove. The first rotating rod and the second rotating rod are connected to the first support frame. A first limiting rod is hinged to the middle of the first support frame. A limiting slider is hinged to the end of the first limiting rod away from the first support frame. The limiting slider is slidably connected to the first limiting slide rail at the bottom of the placement cavity.

4. A seismic source generating device for geophysical exploration according to claim 1, characterized in that: The source generating mechanism has a source generating frame connected to the source cavity, a source hydraulic cylinder on the source generating frame connected to a vibrating hammer, a source plate below the vibrating hammer, a source through hole below the source plate in the source cavity, and a moving hydraulic cylinder on the source generating frame connected to the source plate.

5. A seismic source generating device for geophysical exploration according to claim 1, characterized in that: The top of the second support telescopic frame of the second support mechanism is connected to the second limiting telescopic slide rail. The second limiting telescopic slide rail is located below the first limiting telescopic slide rail. The top and bottom of the second support telescopic frame are connected by a hinge rod assembly. Adjacent hinge rod assemblies are connected by a first connecting plate and a second connecting plate, respectively. A lifting motor is provided on the first connecting plate, and a lifting threaded rod threaded to the second connecting plate is connected to the lifting motor.

6. A seismic source generating device for geophysical exploration according to claim 3, characterized in that: The first support frame is symmetrically hinged with a first support cylinder, and the end of the first support rod connected to the first support cylinder is provided with a caster wheel. A handrail is provided below the first support frame.

7. A seismic source generating device for geophysical exploration according to claim 3, characterized in that: The first locking plate on the first support frame is connected to the second locking plate at the end of the first limit slide rail by a locking lock, and the mounting seat of the first support cylinder is connected to the first rotating motor on the first support frame.

8. A method of using a seismic source generating device for geophysical exploration according to any one of claims 1-7, characterized in that: Includes the following steps, S1. Drive the vehicle to the exploration site, unlock the locking mechanism and pull out the storage box and the first support mechanism; S2. When the first support mechanism is opened, after the first support mechanism is completely moved out of the placement cavity, the first rotating motor is started to release the first support cylinder and the first support rod. The first support cylinder is started to make the caster wheel contact the ground and take out the tools and accessories to be used from the storage box. S3. Retract the first support mechanism, start the moving hydraulic cylinder, and drive the vibratory source plate through the vibratory source through hole to contact the ground until the vehicle body leaves the ground. Choose whether to use the second support mechanism according to the terrain. S4. Start the hydraulic cylinder of the vibratory source, the vibratory hammer contacts the vibratory source plate, the vibratory source plate contacts the ground and generates vibration; S5. After the operation is completed, retrieve the vibratory hammer and the vibratory source plate, unfold the first support mechanism again, put the tools and accessories into the storage box, and then retrieve the second support mechanism and the first support mechanism in sequence. Use the locking lock to lock the first locking plate and the second locking plate together.

9. The method of using a seismic source generating device for geophysical exploration according to claim 8, characterized in that: In S3, when the tilt angle of the ground is greater than 10°, the second support mechanism is activated before the vehicle body leaves the ground. When in use, the second limit telescopic slide rail is activated to move the second support telescopic frame out of the placement cavity, and the lifting motor is activated to drive the bottom of the second support telescopic frame to contact the ground.

10. The method of using a seismic source generating device for geophysical exploration according to claim 8, characterized in that: In S4, the impact force and vibration frequency of the vibratory hammer are adjusted by controlling the hydraulic cylinder of the seismic source according to the exploration requirements.

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