Device for eliminating geomagnetic detection false signal

Abstract

The utility model discloses a device for eliminating geomagnetic detection false signals, which comprises a working table, a rotary driving device is arranged at the top of the working table, the output end of the rotary driving device penetrates through the working table and is connected with a quick connection assembly, a demagnetization assembly is arranged at the bottom of the quick connection assembly, and a demagnetization module is arranged on the working table. A guide device is installed at the bottom of the degaussing assembly and used for gathering and guiding a natural magnetic field in a detection area downwards, the electromagnetic intensity of the natural magnetic field in the detection area is improved, and the degaussing assembly is used for cutting magnetic lines on the gathering and spreading path of the natural magnetic field through mechanical disturbance operation. Eliminating false signals by consuming the energy of the false magnetic field; the degaussing assembly comprises a rotating disc, the rotating disc is connected to the bottom end of the quick connecting assembly in a clamped mode, a degaussing wire frame is vertically installed at the lower end of the rotating disc, a degaussing coil is installed on the degaussing wire frame, and the guiding device is located on the inner side of the degaussing wire frame.

Description

Technical Field

[0001] This utility model relates to the field of geomagnetic detection technology, specifically to a device for eliminating false signals in geomagnetic detection. Background Technology

[0002] Geomagnetic detection technology has important applications in many fields, such as geological exploration, earthquake monitoring, and navigation and positioning. During geomagnetic detection, geomagnetic signals are collected using geomagnetic sensors; however, the collected signals often contain a large number of false signals.

[0003] In existing devices for eliminating false geomagnetic signals, the demagnetizing component is a key element, and its performance gradually declines with use, with demagnetizing coils frequently aging and breaking. However, traditional demagnetizing component installation methods are cumbersome, requiring specialized tools and complex procedures for disassembly and installation. This not only leads to inefficient demagnetizing coil replacement but also risks damaging other components during the replacement process. Furthermore, due to vibrations generated during device operation, traditional connection structures are prone to loosening under prolonged vibration, thus affecting the overall stability of the device.

[0004] Therefore, it is necessary to provide a device for eliminating false signals from geomagnetic detection in order to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for eliminating false signals from geomagnetic detection, comprising: a workbench, a rotary drive device on the top of the workbench, a quick-connect assembly connected to the output end of the rotary drive device passing through the workbench, a demagnetizing assembly installed at the bottom of the quick-connect assembly, and a guiding device installed at the bottom of the demagnetizing assembly. The guiding device is used to concentrate and guide the natural magnetic field of the detection area downwards, thereby increasing the electromagnetic intensity of the natural magnetic field in the detection area. The demagnetizing assembly is used to cut the magnetic field lines along the path of the natural magnetic field concentration and propagation through mechanical disturbance, thereby consuming the energy of the false magnetic field and eliminating false signals.

[0006] The demagnetizing assembly includes a turntable that is snapped into the bottom of the quick-connect assembly. A demagnetizing wire frame is vertically mounted on the lower end of the turntable, and a demagnetizing coil is mounted on the demagnetizing wire frame. The guiding device is located inside the demagnetizing wire frame.

[0007] Preferably, the quick-connect assembly includes: a connecting plate coaxially fixed to the output end of the rotary drive device, a plurality of slots evenly formed on the outer periphery of the connecting plate, a plurality of arc-shaped grooves formed through the slots on the bottom of the connecting plate, the arc-shaped grooves being located on the side of the slots near the rotation direction of the connecting plate, the arc-shaped grooves being coaxially arranged with the connecting plate, and a mounting hole being formed on the side of the slots near the arc-shaped grooves;

[0008] An elastic support member, one end of which is fixed in the mounting hole, and the other end of which is vertically connected to a locking post, the locking post being slidably inserted into the arc-shaped groove;

[0009] L-shaped locking blocks are fixedly disposed on the top of the turntable, corresponding to each of the arc-shaped grooves, and are used to engage with the grooves.

[0010] Preferably, the L-shaped locking block includes a connecting end and a locking end arranged perpendicularly to each other in an L-shape. The connecting end is fixed to the top of the turntable, and the locking end is an arc-shaped plate structure that is adapted to the arc-shaped groove structure. The locking end is arranged away from the rotation direction of the turntable.

[0011] Preferably, a guide hole is coaxially provided at the bottom of the connecting disk, and a guide post is provided at the top of the turntable corresponding to the guide hole, with the guide post slidingly engaging with the guide hole.

[0012] Preferably, the locking post has a groove on the side opposite to the elastic support member.

[0013] Preferably, the horizontal cross-section of the demagnetizing wire frame is an H-shaped structure, and the demagnetizing coil is installed in the recesses on both sides of the H-shaped structure.

[0014] Preferably, limit blocks are provided on both sides of the recessed outer end of the H-shaped structure to limit the demagnetizing coil.

[0015] Preferably, the workbench has a cavity inside, a mobile power supply is placed inside the cavity, and a movable flap is provided on any side of the cavity.

[0016] Compared with existing technologies, this utility model provides a device for eliminating false signals from geomagnetic detection, which has the following beneficial effects:

[0017] In this invention, the demagnetizing component can be quickly installed by setting a quick-connect component, which facilitates the rapid replacement of aged and damaged demagnetizing coils. The installation or removal of the demagnetizing component can be completed simply by rotating and pressing or rotating and pulling out, which greatly improves the replacement efficiency of the demagnetizing coil. At the same time, the demagnetizing component is elastically limited by the setting of the elastic support component, which prevents the connection structure from loosening due to vibration during use and improves the stability of the device. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a device for eliminating false signals from geomagnetic detection;

[0019] Figure 2 A schematic diagram of the connecting plate structure of a device for eliminating false signals from geomagnetic detection, viewed from below.

[0020] Figure 3 A schematic diagram of the demagnetization component structure of a device for eliminating false signals from geomagnetic detection.

[0021] Figure 4 A top-view cross-sectional view of the demagnetization frame structure of a device for eliminating false signals from geomagnetic detection.

[0022] In the diagram: 1. Workbench; 2. Quick-connect assembly; 3. Demagnetizing assembly; 4. Guide device; 5. Demagnetizing coil; 6. Drive device; 7. Connecting plate; 8. Slot; 9. Arc groove; 10. Mounting hole; 11. Elastic support; 12. Locking post; 13. Turntable; 14. L-shaped block; 15. Guide post; 16. Guide hole; 17. Demagnetizing wire frame; 18. Wire groove; 19. Limit block. Detailed Implementation

[0023] Please see Figure 1-4 This utility model provides a device for eliminating false signals from geomagnetic detection, comprising:

[0024] A workbench 1 is provided with a rotary drive device 6 on its top. The output end of the rotary drive device 6 passes through the workbench 1 and is connected to a quick-connect assembly 2. A demagnetizing assembly 3 is installed at the bottom of the quick-connect assembly 2. A guiding device 4 is installed at the bottom of the demagnetizing assembly 3. The guiding device 4 is used to concentrate and guide the natural magnetic field of the detection area downward to increase the electromagnetic intensity of the natural magnetic field of the detection area. The demagnetizing assembly 3 is used to cut the magnetic field lines on the path of the natural magnetic field concentration and propagation through mechanical disturbance to consume the energy of the false magnetic field and eliminate false signals.

[0025] The demagnetizing assembly 3 includes a turntable 13, which is snapped into the bottom end of the quick-connect assembly 2. A demagnetizing wire frame 17 is vertically installed at the lower end of the turntable 13, and a demagnetizing coil 5 is installed on the demagnetizing wire frame 17. The guiding device 4 is located inside the demagnetizing wire frame 17.

[0026] Understandably, when the demagnetizing component 3 is replaced or installed, it is quickly connected to the rotary drive device 6 via the quick-connect component 2. The rotary drive device 6 drives the quick-connect component 2, the demagnetizing component 3, and the guide device 4 to rotate, while simultaneously energizing the guide device 4. During this process, the demagnetizing component 3 cuts the magnetic lines of force of the natural magnetic field that the guide device 4 guides and gathers in the detection area, thereby consuming the energy of the false magnetic field and eliminating false signals.

[0027] Specifically, the rotary drive device 6 is a motor, with its output end coaxially connected to a rotating shaft that passes through the worktable 1. The guiding device 4 includes a guiding shell, a cover made of magnetic composite material disposed inside the guiding shell, and an electromagnetic coil disposed inside the cover. Under the guidance of the electromagnetic coil, the natural magnetic field forms a magnetic funnel around the guiding device to increase the magnetic field strength at this location, facilitating the demagnetizing component 3 to cut the magnetic field lines along the geomagnetic field's accumulation and propagation path, thus consuming the energy of the false magnetic field.

[0028] Furthermore, the quick-connect assembly 2 includes: a connecting disk 7 coaxially fixed at the output end of the rotary drive device 6, a plurality of slots 8 evenly formed on the outer periphery of the connecting disk 7, a plurality of arc-shaped grooves 9 formed through the bottom of the connecting disk 7 and the slots 8, the arc-shaped grooves 9 being located on the side of the slots 8 near the rotation direction of the connecting disk 7, the arc-shaped grooves 9 being coaxially arranged with the connecting disk 7, and a mounting hole 10 formed on the side of the slots 8 near the arc-shaped grooves 9;

[0029] An elastic support 11 is provided, with one end of the elastic support 11 fixed in the mounting hole 10 and the other end of the elastic support 11 vertically connected to a locking post 12, which is slidably inserted into the arc-shaped groove 9.

[0030] L-shaped locking block 14, the L-shaped locking block 14 is fixedly disposed on the top of the turntable 13 corresponding to each of the arc grooves 9, the L-shaped locking block 14 is used to engage with the locking groove 8, and the elastic support member 11 is a spring or an elastic telescopic rod.

[0031] Furthermore, the L-shaped locking block 14 includes a connecting end and a locking end arranged perpendicularly to each other in an L-shape. The connecting end is fixed to the top of the turntable 13, and the locking end is an arc-shaped plate structure that is adapted to the arc-shaped groove 9 structure. The locking end is arranged away from the rotation direction of the turntable 13.

[0032] It should be explained that when the demagnetizing component 3 is not installed (the elastic telescopic component 11 is in its natural state), the length of the snap-fit ​​end is greater than the snap-fit ​​gap formed between the locking pin 12 and the arc groove 9. When the snap-fit ​​end pushes the locking pin 12 to compress the elastic support component 11, the snap-fit ​​gap formed between the locking pin 12 and the arc groove 9 is greater than the length of the snap-fit ​​end, which makes it easier for the L-shaped snap-fit ​​block 14 to pass through the arc groove 9 and enter the snap-fit ​​slot 8.

[0033] Furthermore, a guide hole 16 is coaxially provided at the bottom of the connecting disk 7, and a guide post 15 is provided at the top of the turntable 13 corresponding to the guide hole 16, and the guide post 15 slides in cooperation with the guide hole 16.

[0034] During long-term use, the demagnetizing coil 5 of the demagnetizing component 3 will inevitably suffer from damage and aging, requiring replacement. The existing device requires disassembling the connecting structure (screws, etc.) one by one to replace the parts and then reassembling them, which is time-consuming and labor-intensive.

[0035] In this embodiment, when the demagnetizing component 3 needs to be installed, it is first pre-positioned by the guide post 15 and the guide hole 16, then the connecting plate 7 is fixed, and the demagnetizing component 3 is rotated along the rotation direction of the connecting plate 7, so that the locking end of the L-shaped card block 14 pushes the locking post 12 to compress the elastic support member 11, so that the L-shaped card block 14 passes through the arc groove 9 and enters the card slot 8, thus completing the quick installation of the demagnetizing component 3.

[0036] When the demagnetizing coil 5 needs to be replaced, fix the connecting plate 7, rotate the demagnetizing component 3 to the side opposite to the rotation direction of the connecting plate 7, compress the elastic support 11, and finally pull the demagnetizing component 3 down to complete the disassembly of the demagnetizing component 3. After that, replace the demagnetizing coil 5 and then reassemble the demagnetizing component 3.

[0037] In another embodiment, the locking pin 12 has a groove on the side opposite to the elastic support member 11. The groove cooperates with the locking pin 12 to facilitate pushing the locking pin 12.

[0038] Furthermore, the horizontal cross-section of the demagnetizing wire frame 17 is an H-shaped structure, and the demagnetizing coil 5 is installed on at least one side of the recesses on both sides of the H-shaped structure.

[0039] Specifically, the wire harness of the demagnetizing coil 5 is bonded together with insulating glue or epoxy resin to facilitate the installation of the demagnetizing coil 5.

[0040] Furthermore, limiting blocks 19 are provided on both sides of the recessed outer end of the H-shaped structure to limit the demagnetizing coil 5. The limiting blocks 19 are made of flexible material (rubber, etc.), which limits the demagnetizing coil 5 on the one hand and facilitates the insertion of the demagnetizing coil 5 on the other.

[0041] Furthermore, the workbench 1 has a cavity inside, in which a mobile power supply is placed. A movable flap is provided on any side of the cavity to ensure the normal operation of the guiding device 4 in the event of no power or power failure.

[0042] In practice, when replacing or installing the demagnetizing component 3, the demagnetizing component 3 is quickly connected to the rotary drive device 6 via the quick-connect component 2. The rotary drive device 6 drives the quick-connect component 2, the demagnetizing component 3, and the guide device 4 to rotate, while the guide device 4 is powered on. During this process, the demagnetizing component 3 cuts the magnetic lines of force of the natural magnetic field that the guide device 4 guides and gathers in the detection area, so as to consume the energy of the false magnetic field and eliminate the false signal.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An apparatus for eliminating false signals of geomagnetic exploration, characterized in that, Include: Workbench (1), the top of the workbench (1) is provided with a rotary drive device (6), the output end of the rotary drive device (6) is connected with a quick connecting assembly (2) through the workbench (1), the bottom of the quick connecting assembly (2) is provided with a degaussing assembly (3), the bottom of the degaussing assembly (3) is provided with a guide device (4), the guide device (4) is used for guiding the downward gathering of the natural magnetic field of the detection area, improving the electromagnetic intensity of the natural magnetic field of the detection area, the degaussing assembly (3) is used for cutting the magnetic force line on the path of natural magnetic field gathering and spreading by mechanical disturbance operation, so as to consume the energy of false magnetic field and exclude false signal; The degaussing assembly (3) comprises a rotating disc (13) which is clamped at the bottom end of the quick connecting assembly (2), and a degaussing wire frame (17) is vertically installed at the lower end of the rotating disc (13), and a degaussing coil (5) is installed on the degaussing wire frame (17), and the guide device (4) is located inside the degaussing wire frame (17).

2. The device for eliminating false signals of geomagnetic detection according to claim 1, characterized in that, The quick connecting assembly (2) comprises a connecting disc (7) coaxially fixed on the output end of the rotary drive device (6), a plurality of clamping grooves (8) are uniformly arranged on the outer periphery of the connecting disc (7), a plurality of arc grooves (9) are arranged through the bottom of the connecting disc (7) and the clamping grooves (8), the arc grooves (9) are located on the side of the clamping grooves (8) close to the rotating direction of the connecting disc (7), the arc grooves (9) are coaxially arranged with the connecting disc (7), and the side of the clamping grooves (8) close to the arc grooves (9) is provided with a mounting hole (10); An elastic supporting piece (11) is fixed at one end in the mounting hole (10), and the other end of the elastic supporting piece (11) is vertically connected with a locking column (12), and the locking column (12) is slidingly inserted into the arc groove (9); An L-shaped clamping block (14) is fixed on the top of the rotating disc (13) corresponding to each arc groove (9), and the L-shaped clamping block (14) is used for clamping with the clamping groove (8).

3. The device for eliminating false signals of geomagnetic exploration according to claim 2, characterized in that, The L-shaped clamping block (14) comprises a connecting end and a clamping end which are vertically arranged in an L shape, the connecting end is fixed on the top of the rotating disc (13), the clamping end is an arc plate structure, the clamping end is matched with the structure of the arc groove (9), and the clamping end is arranged away from the rotating direction of the rotating disc (13).

4. The device for eliminating false signals of geomagnetic exploration according to claim 2, characterized in that, A guide hole (16) is coaxially arranged on the bottom of the connecting disc (7), a guide column (15) is arranged on the top of the rotating disc (13) corresponding to the guide hole (16), and the guide column (15) is slidingly matched with the guide hole (16).

5. The device for eliminating false signals of geomagnetic exploration according to claim 2, characterized in that, The side of the locking column (12) away from the elastic supporting piece (11) is provided with a groove.

6. The device for eliminating false signals of geomagnetic exploration according to claim 2, characterized in that, The horizontal section of the degaussing wire frame (17) is H-shaped structure, and the degaussing coil (5) is installed in the recesses on both sides of the H-shaped structure.

7. The device for eliminating false signals of geomagnetic exploration according to claim 6, characterized in that, Limiting blocks (19) are arranged on both sides of the recessed outer end of the H-shaped structure, which are used for limiting the degaussing coil (5).

8. The device for eliminating false signals of geomagnetic exploration according to claim 1, characterized in that, The workbench (1) is internally provided with a cavity, a mobile power supply is placed in the cavity, and movable flaps are arranged on any side of the cavity.

Images