Seismic signal acquisition device for geophysical exploration

Abstract

The invention discloses a seismic signal acquisition device for geophysical exploration, and relates to the technical field of seismic signal acquisition. The device comprises a supporting plate, a connecting block is fixedly installed below the supporting plate, a first supporting rod is rotatably installed on the connecting block, the first supporting rod is slidably connected with a second supporting rod, a driving air cylinder is fixedly installed in the second supporting rod, a fixing mechanism is arranged on an air rod of the driving air cylinder, and the fixing mechanism comprises a connecting cylinder arranged on the second supporting rod; and one end of a telescopic rod is fixedly mounted in the connecting cylinder. The driving air cylinder controls the air rod to stretch out and draw back, the air rod makes contact with the arc face of the sliding block to push the sliding block to slide, then the inserting rod is driven to achieve fixing and unfixing of the device, and operation is convenient. And the reset spring ensures that the sliding block is reset in time, so that the fixing mechanism operates reliably, the device is stably fixed under different terrains, and the accuracy of seismic signal acquisition data is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of seismic signal acquisition, and in particular relates to a seismic signal acquisition device for geophysical exploration. Background Art

[0002] Geophysics, one of the main disciplines of earth science, is a comprehensive discipline that studies the Earth and searches for mineral resources within it through quantitative physical methods (such as seismic elastic waves, gravity, geomagnetism, geoelectricity, geothermal energy, and radioactivity). Seismic signal acquisition devices are specialized equipment or systems used to capture, record, and analyze various physical signals generated by seismic activity. They play a key role in earthquake monitoring, geophysical exploration, and engineering structure health monitoring.

[0003] At present, the conventional deployment method of existing seismic signal acquisition devices is to place them on a tripod for operation. However, in actual application scenarios, this fixing method exposes obvious limitations. Since the ground conditions in the wild or complex environments are often uneven, such as uneven ground, soft soil, or the presence of gravel, sand, etc., the tripod legs are difficult to form stable and close contact with the ground, and thus cannot be effectively fixed. Once encountering slight external force interference (such as wind, human or animal touch, etc.), the tripod itself is very likely to shake or displace. This instability will be directly transmitted to the seismic signal acquisition device, resulting in deviations or noise interference in the collected seismic wave data, seriously affecting the accuracy and reliability of the data, and thus adversely affecting subsequent earthquake analysis, early warning and scientific research work. Therefore, the development of a seismic signal acquisition device fixing solution that is adaptable to complex terrain and has greater stability has become a technical problem that needs to be urgently solved in the current earthquake monitoring field. Summary of the Invention

[0004] In response to the problems in the related art, the present invention proposes a seismic signal acquisition device for geophysical detection to overcome the above-mentioned technical problems existing in the existing related art.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a seismic signal acquisition device for geophysical exploration, comprising a support plate, a connecting block fixedly installed under the support plate, a first support rod rotatably installed on the connecting block, the first support rod slidably connected to the second support rod, a driving cylinder fixedly installed inside the second support rod, an air rod of the driving cylinder is provided with a fixing mechanism, the fixing mechanism comprises a connecting tube arranged on the second support rod, one end of a telescopic rod fixedly installed inside the connecting tube, the other end of the telescopic rod fixedly installed on the sliding block, the end of the sliding block close to the inside of the connecting tube is in an arc shape, and the other end is fixedly installed with an insertion rod, the arc-shaped end of the sliding block conflicts with the air rod to realize the fixing function.

[0007] Furthermore, a reset spring is sleeved on the exterior of the telescopic rod, and the reset spring is used to reset the sliding block when the gas rod contracts.

[0008] Furthermore, the sliding block is slidably connected to the interior of the connecting tube. The connecting tube is provided with a notch. The sliding block passes through the notch and can slide in the notch to cooperate with the telescopic action of the gas rod.

[0009] Furthermore, a control mechanism is provided between the first support rod and the second support rod, and the control mechanism includes a threaded rod arranged inside the first support rod, the threaded rod is rotatably installed inside the first support rod, the threaded rod is fixedly installed with a worm gear, the worm gear is engaged with a worm, and the worm gear is rotatably installed on the first support rod for controlling the lifting and lowering of the second support rod.

[0010] Furthermore, the worm is fixedly mounted with a handle, and the worm can be driven to rotate by turning the handle, thereby driving the threaded rod to rotate. The threaded rod is threadedly connected to the second support rod. There are three connecting blocks, first support rods, and second support rods, and their installation methods are the same. There are three groups of control mechanisms, and their parts and installation methods are the same to achieve stable support and height adjustment of the device.

[0011] Furthermore, the support plate is provided with a placement groove, and a clamping mechanism is provided inside the placement groove. The clamping mechanism includes a compression spring provided inside the placement groove, one end of the compression spring is fixedly mounted on the inner wall of the placement groove, and the other end is fixedly mounted on the clamping plate, for clamping and fixing the collection device.

[0012] Furthermore, the clamping mechanism is provided with four groups, and its parts and installation methods are the same, which are respectively arranged on the four side walls of the placement groove. The collection device is movably installed inside the placement groove, and the four clamping plates are used to fix the collection device in all directions.

[0013] Furthermore, a sponge pad is provided on one side of the four clamping plates close to the collection device, and the sponge pad is used to protect the collection device from damage during clamping.

[0014] Furthermore, the placement slot is provided with a connection hole, the connection hole is slidably connected to a rigid probe, the rigid probe is fixedly mounted on the acquisition device, and the rigid probe is retractable to meet the requirements of different detection depths.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention uses a pneumatic cylinder to control the extension and retraction of the air rod. The contact between the air rod and the curved surface of the sliding block pushes the sliding block, which in turn drives the insertion rod to secure and release the device. This design makes securing and releasing the device simple and convenient. The reset spring ensures that the sliding block can be reset promptly, ensuring reliable operation of the securing mechanism and ensuring stable fixation of the seismic signal acquisition device in various terrains, thereby improving the accuracy of the collected data.

[0017] 2. This invention utilizes the self-locking properties of the worm gear. Turning the handle drives the worm, which in turn drives the threaded rod, causing the second support rod to slide along the first support rod, achieving adjustable support height. Three identical control mechanisms can synchronously adjust the elevation of the three second support rods, ensuring the support plate remains horizontal and stable, adapting to complex terrain and providing reliable support for the seismic signal acquisition device.

[0018] 3. The present invention provides a placement slot with a clamping mechanism on the support plate. The elastic restoring force of the compression spring causes the four clamping plates to simultaneously apply clamping force toward the center from four directions, thereby firmly fixing the acquisition device in the center of the placement slot. The sponge pads provided on the clamping plates provide sufficient clamping force while preventing damage to the surface of the acquisition device caused by rigid clamping. This not only ensures the stability of the acquisition device, but also effectively prevents damage during the fixing process, thereby extending the service life of the acquisition device. In addition, the rigid probe has a retractable design, which can flexibly adjust the insertion depth according to different geological conditions and detection requirements, ensuring the quality of signal acquisition and facilitating the transportation and storage of the equipment.

[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] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on the following drawings without paying any creative work.

[0021] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 A top view of the present invention;

[0023] Figure 3 It is a partial structural diagram of the present invention;

[0024] Figure 4 It is an exploded view of part of the structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the interior of the connecting tube of the present invention;

[0026] Figure 6 This is an enlarged view of point A of the present invention;

[0027] Figure 7 It is a front view of the present invention;

[0028] Figure 8 It is an enlarged view of point B of the present invention;

[0029] Figure 9 is a schematic diagram of a support plate of the present invention;

[0030] Figure 10 Schematic diagram of the clamping plate of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 1. Support plate; 2. Connecting block; 3. First support rod; 4. Second support rod; 5. Driving cylinder; 6. Air rod; 7. Connecting tube; 8. Telescopic rod; 9. Sliding block; 10. Insert rod; 11. Return spring; 12. Notch; 13. Threaded rod; 14. Worm gear; 15. Worm; 16. Handle; 17. Placement slot; 18. Compression spring; 19. Clamping plate; 20. Collection device; 21. Sponge pad; 22. Connecting hole; 23. Rigid probe. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0035] See also Figures 1-10 As shown, the present invention is a seismic signal acquisition device for geophysical exploration, including a support plate 1, a connecting block 2 is fixedly installed under the support plate 1, a first support rod 3 is rotatably installed on the connecting block 2, the first support rod 3 is slidably connected to the second support rod 4, a driving cylinder 5 is fixedly installed inside the second support rod 4, and a gas rod 6 of the driving cylinder 5 is provided with a fixing mechanism, which includes a connecting tube 7 arranged on the second support rod 4, one end of a telescopic rod 8 is fixedly installed inside the connecting tube 7, and the other end of the telescopic rod 8 is fixedly installed on a sliding block 9, one end of the sliding block 9 close to the inside of the connecting tube 7 is in an arc shape, and the other end is fixedly installed with an insertion rod 10, and the arc-shaped end of the sliding block 9 conflicts with the gas rod 6 to realize the fixing function.

[0036] The operating principle of a seismic signal acquisition device for geophysical exploration proposed in this invention is as follows: when the seismic signal acquisition device needs to be fixed, a driving cylinder 5 is activated, and a pneumatic rod 6 is extended outward. The end of the pneumatic rod 6 contacts the curved end of a sliding block 9, exerting pressure, pushing the sliding block 9 along the interior of a connecting tube 7. The movement of the sliding block 9 causes an insertion rod 10 fixed at its other end to extend outward and penetrate into the ground or a fixed base, thus ensuring stable fixing of the device.

[0037] When the fixation needs to be released, the air cylinder 5 is driven to retract the air rod 6, and the air rod 6 separates from the arc end of the sliding block 9. At this time, the elastic restoring force of the telescopic rod 8 causes the sliding block 9 to return to its original position, driving the insertion rod 10 to retract into the connecting tube 7, releasing the fixation state.

[0038] Throughout the entire process, support plate 1 is rotatably connected to first support rod 3 via connecting block 2. This first support rod 3 and second support rod 4 slide together, allowing the device to adjust its angle and height to adapt to different terrains. A drive cylinder 5 controls the locking and release of the fixing mechanism by extending and retracting air rod 6, ensuring stability during seismic signal acquisition.

[0039] In one embodiment, for the telescopic rod 8 , a return spring 11 is sleeved on the outside of the telescopic rod 8 . The return spring 11 is used to return the sliding block 9 to its original position when the gas rod 6 contracts.

[0040] In one embodiment, the sliding block 9 is slidably connected to the interior of the connecting tube 7 . The connecting tube 7 is provided with a slot 12 . The sliding block 9 passes through the slot 12 and can slide in the slot 12 to cooperate with the telescopic movement of the gas rod 6 .

[0041] The operating principle of the seismic signal acquisition device for geophysical exploration proposed in this invention is that when the air rod 6 of the driving cylinder 5 extends outward, the end of the air rod 6 abuts the curved end of the sliding block 9. Driven by the air rod 6, the sliding block 9 slides outward along the notch 12 inside the connecting tube 7. The movement of the sliding block 9 drives the insertion rod 10 outward, thus achieving the device's fixing function. Simultaneously, the movement of the sliding block 9 extends the telescopic rod 8 and compresses the return spring 11, storing elastic potential energy.

[0042] When the pneumatic rod 6 of the driving cylinder 5 retracts inward, it separates from the curved end of the sliding block 9. The compressed return spring 11 releases its elastic potential energy, pushing the sliding block 9 inward along the notch 12 to reset. The sliding block 9 then retracts the insertion rod 10 into the connecting tube 7, and the telescopic rod 8 also retracts, releasing the fixed state.

[0043] During the entire process, the notch 12 provides a precise sliding guide for the slide block 9, ensuring that the telescopic movement of the plunger 10 maintains a straight trajectory. The elastic force of the return spring 11 ensures that the slide block 9 can be reset in time, making the fixing mechanism work reliably.

[0044] In one embodiment, for the above-mentioned first support rod 3, a control mechanism is provided between the first support rod 3 and the second support rod 4. The control mechanism includes a threaded rod 13 arranged inside the first support rod 3. The threaded rod 13 is rotatably installed inside the first support rod 3. The threaded rod 13 is fixedly installed with a worm gear 14. The worm gear 14 is engaged with a worm 15. The worm 15 is rotatably installed on the first support rod 3 for controlling the lifting and lowering of the second support rod 4.

[0045] In one embodiment, for the above-mentioned worm 15, the worm 15 is fixedly installed with a handle 16. By rotating the handle 16, the worm 15 can be driven to rotate, thereby driving the threaded rod 13 to rotate. The threaded rod 13 is threadedly connected to the second support rod 4. There are three connecting blocks 2, first support rods 3, and second support rods 4, and their installation methods are the same. There are three control mechanisms, and their parts and installation methods are the same to achieve stable support and height adjustment of the device.

[0046] The operating principle of the seismic signal acquisition device for geophysical exploration proposed in this invention is that when the height of the seismic signal acquisition device needs to be adjusted, the operator manually rotates the handle 16, which drives the worm 15. The worm 15 engages with the worm wheel 14, driving the threaded rod 13 to rotate within the first support rod 3. Because the threaded rod 13 is threadedly connected to the second support rod 4, the rotation of the threaded rod 13 pushes the second support rod 4 to slide along the first support rod 3, thereby adjusting the support height.

[0047] Since there are three connecting blocks 2, first support rods 3 and second support rods 4, and each support rod group is equipped with the same control mechanism, the operator can adjust the three handles 16 synchronously to make the three second support rods 4 rise and fall synchronously to ensure that the support plate 1 remains horizontal and stable.

[0048] The mechanism can maintain stability after adjustment through the self-locking characteristics of the worm wheel 14 and the worm 15, preventing the second support rod 4 from accidentally retracting due to external forces, and ensuring reliable support of the seismic signal acquisition device in complex terrain.

[0049] In one embodiment, for the above-mentioned support plate 1, the support plate 1 is provided with a placement groove 17, and a clamping mechanism is provided inside the placement groove 17. The clamping mechanism includes a compression spring 18 provided inside the placement groove 17. One end of the compression spring 18 is fixedly installed on the inner wall of the placement groove 17, and the other end is fixedly installed on the clamping plate 19, which is used to clamp and fix the collection device 20.

[0050] In one embodiment, for the above-mentioned clamping mechanism, four groups of clamping mechanisms are provided, and their parts and installation methods are the same, which are respectively arranged on the four side walls of the placement groove 17. The collection device 20 is movably installed inside the placement groove 17, and the four clamping plates 19 are used to fix the collection device 20 in all directions.

[0051] In one embodiment, for the above-mentioned clamping plates 19, a sponge pad 21 is provided on one side of the four clamping plates 19 close to the collecting device 20. The sponge pad 21 is used to protect the collecting device 20 from damage during clamping.

[0052] The operating principle of the seismic signal acquisition device for geophysical exploration proposed in this invention is as follows: when the acquisition device 20 is to be installed, the operator places the acquisition device 20 into the placement slot 17 of the support plate 1. During placement, the acquisition device 20 contacts four clamping plates 19, pushing the clamping plates 19 outward. The movement of the clamping plates 19 compresses the compression springs 18 fixed between the inner wall of the placement slot 17 and the clamping plates 19, generating an elastic restoring force.

[0053] When collection device 20 is fully inserted into placement slot 17, four clamping plates 19, under the elastic force of compression springs 18, simultaneously apply clamping force from four directions toward the center, firmly securing collection device 20 in the center of placement slot 17. Sponge pads 21 on clamping plates 19 directly contact collection device 20, providing sufficient clamping force while preventing damage to the surface of collection device 20 caused by rigid clamping.

[0054] When the collection device 20 needs to be removed, the operator applies external force to remove the collection device 20 from the placement slot 17. During the removal process, the pressure between the collection device 20 and the clamping plate 19 decreases, and the compression spring 18 gradually returns to its original state, driving the clamping plate 19 back to its original position, ready for the next installation.

[0055] The four symmetrically arranged clamping mechanisms ensure that the collection device 20 remains stable in the placement slot 17, avoiding displacement or shaking due to external forces. At the same time, the protective effect of the sponge pad 21 effectively prevents the collection device 20 from being damaged during the fixing process.

[0056] In one embodiment, for the placement slot 17, the placement slot 17 is provided with a connection hole 22, and the connection hole 22 is slidably connected to a rigid probe 23, which is fixedly mounted on the acquisition device 20. The rigid probe 23 is retractable to meet the requirements of different detection depths.

[0057] The operating principle of the seismic signal acquisition device for geophysical exploration proposed in this invention is as follows: when the acquisition device 20 is placed in the placement slot 17, a rigid probe 23 fixed thereto extends out of the support plate 1 through the connection hole 22. The rigid probe 23 can slide freely within the connection hole 22, achieving telescopic movement. During seismic signal detection, the rigid probe 23 is adjusted to the required detection depth: for deep detection, the rigid probe 23 extends downward a longer distance; for shallow detection, the rigid probe 23 remains extended at a shorter distance.

[0058] During detection, the rigid probe 23 maintains stable contact with the ground through the connection hole 22, accurately transmitting seismic wave signals to the acquisition device 20. Because the rigid probe 23 is retractable, its insertion depth can be flexibly adjusted to suit different geological conditions and detection requirements, ensuring high-quality signal acquisition. When the detection mission is completed or the device needs to be moved, the rigid probe 23 can be fully retracted into the connection hole 22, facilitating transportation and storage of the equipment.

[0059] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0060] The preferred embodiments of the invention disclosed above are intended only to help illustrate the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. The embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A seismic signal acquisition device for geophysical exploration, comprising a support plate (1), characterized in that: A connecting block (2) is fixedly installed below the support plate (1), and a first supporting rod (3) is rotatably installed on the connecting block (2), and the first supporting rod (3) is slidably connected to the second supporting rod (4), and a driving cylinder (5) is fixedly installed inside the second supporting rod (4), and the gas rod (6) of the driving cylinder (5) is provided with a fixing mechanism, and the fixing mechanism includes a connecting tube (7) arranged on the second supporting rod (4), and one end of a telescopic rod (8) is fixedly installed inside the connecting tube (7), and the other end of the telescopic rod (8) is fixedly installed on the sliding block (9), and the end of the sliding block (9) close to the inside of the connecting tube (7) is in an arc shape, and the other end is fixedly installed with an insertion rod (10), and the arc-shaped end of the sliding block (9) conflicts with the gas rod (6) to achieve a fixing function.

2. The seismic signal acquisition device for geophysical exploration according to claim 1, characterized in that: The outer sleeve of the telescopic rod (8) is provided with a reset spring (11), and the reset spring (11) is used to reset the sliding block (9) when the gas rod (6) contracts.

3. The seismic signal acquisition device for geophysical exploration according to claim 2, characterized in that: The sliding block (9) is slidably connected to the interior of the connecting tube (7). The connecting tube (7) is provided with a notch (12). The sliding block (9) passes through the notch (12) and can slide in the notch (12) to cooperate with the telescopic action of the gas rod (6).

4. The seismic signal acquisition device for geophysical exploration according to claim 1, characterized in that: A control mechanism is provided between the first support rod (3) and the second support rod (4), the control mechanism comprising a threaded rod (13) provided inside the first support rod (3), the threaded rod (13) being rotatably mounted inside the first support rod (3), a worm gear (14) being fixedly mounted on the threaded rod (13), the worm gear (14) being engaged with a worm (15), the worm gear (15) being rotatably mounted on the first support rod (3) and being used to control the lifting and lowering of the second support rod (4).

5. The seismic signal acquisition device for geophysical exploration according to claim 4, characterized in that: The worm (15) is fixedly mounted with a handle (16). By rotating the handle (16), the worm (15) can be driven to rotate, thereby driving the threaded rod (13) to rotate. The threaded rod (13) is threadedly connected to the second support rod (4). The connecting block (2), the first support rod (3), and the second support rod (4) are all provided in three numbers, and their installation methods are all the same. The control mechanism is provided in three groups, and their parts and installation methods are all the same, so as to achieve stable support and height adjustment of the device.

6. The seismic signal acquisition device for geophysical exploration according to claim 5, characterized in that: The support plate (1) is provided with a placement groove (17), and a clamping mechanism is provided inside the placement groove (17). The clamping mechanism includes a compression spring (18) provided inside the placement groove (17), one end of the compression spring (18) is fixedly mounted on the inner wall of the placement groove (17), and the other end is fixedly mounted on the clamping plate (19), and is used to clamp and fix the collection device (20).

7. The seismic signal acquisition device for geophysical exploration according to claim 6, characterized in that: The clamping mechanism is provided with four groups, and its parts and installation methods are the same, and are respectively arranged on the four side walls of the placement groove (17). The collection device (20) is movably installed inside the placement groove (17), and the four clamping plates (19) are used to fix the collection device (20) in all directions.

8. The seismic signal acquisition device for geophysical exploration according to claim 7, characterized in that: A sponge pad (21) is provided on one side of the four clamping plates (19) close to the collecting device (20), and the sponge pad (21) is used to protect the collecting device (20) from damage during clamping.

9. The seismic signal acquisition device for geophysical exploration according to claim 8, characterized in that: The placement slot (17) is provided with a connection hole (22), and a rigid probe (23) is slidably connected to the connection hole (22). The rigid probe (23) is fixedly mounted on the collection device (20), and the rigid probe (23) is retractable to meet the requirements of different detection depths.

Images