Magnetic rod posture adjusting structure for electromagnetic prospecting

Abstract

The utility model discloses a kind of magnet bar attitude adjustment structures for electromagnetic prospecting, including base, support, hemispheroid and attitude locking assembly, the base bottom wall is equipped with antiskid layer, the support is equipped in the top of base, damping pivot is equipped between the base, support, the base is connected with support by damping pivot, the hemispheroid is equipped in support, the hemispheroid plane end is equipped with plane round table, the top end of two side walls of the support is equipped with shaft hole, the two sides of the hemispheroid are symmetrically equipped with the connecting shaft compatible with shaft hole, the connecting shaft is rotatably matched with shaft hole. The utility model belongs to the technical field of electromagnetic prospecting equipment, specifically provides a kind of through gravity automatic horizontal regulation, realizes the quick calibration of magnet bar attitude, realizes the stable fixation of magnet bar attitude by attitude locking assembly, significantly improves the efficiency and data precision of electromagnetic prospecting operation of the magnet bar attitude adjustment structure for electromagnetic prospecting.

Description

Technical Field

[0001] This utility model belongs to the technical field of electromagnetic exploration equipment, specifically referring to a magnetic rod attitude adjustment structure for electromagnetic exploration. Background Technology

[0002] In electromagnetic exploration, induction rods need to be placed horizontally on the ground with their axes pointing towards the geographic North Pole to accurately measure changes in the Earth's magnetic field. As the core signal acquisition component, the stability of the induction rod directly determines the accuracy and reliability of the exploration data. Traditional deployment methods rely entirely on the experience of operators, using compasses and levels for manual adjustments—a cumbersome and inefficient process. However, field exploration environments are complex, with varying slopes and uneven ground. Existing induction rod support structures are mostly fixed or simple adjustable supports, lacking sufficient flexibility in directional adjustment and unable to quickly adapt to different exploration angle requirements. Furthermore, the lack of a stable attitude locking mechanism means that even slight vibrations or wind can cause minute deviations in the induction rod's attitude, directly leading to a decrease in the quality of acquired data and affecting the accuracy of geological interpretation. Therefore, a novel induction rod attitude adjustment structure for electromagnetic exploration is urgently needed to solve these problems. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a magnetic rod attitude adjustment structure for electromagnetic exploration that achieves rapid calibration of the magnetic rod's attitude through automatic gravity-based horizontal adjustment and stable fixation of the magnetic rod's attitude through an attitude locking component, thereby significantly improving the efficiency and data accuracy of electromagnetic exploration operations.

[0004] The technical solution adopted by this utility model is as follows: This utility model's magnetic rod attitude adjustment structure for electromagnetic exploration includes a base, a support, a hemisphere, and an attitude locking assembly. The bottom wall of the base is provided with an anti-slip layer. The support is located above the base. A damping shaft is provided between the base and the support, connecting the base and the support. The damping shaft provides uniform damping force when the support rotates, allowing the support to rotate slowly in any direction and maintain its current angle position after stopping rotation. This facilitates precise adjustment of the magnetic rod's orientation by the operator according to exploration needs. The hemisphere is located inside the support, and a frustum of a plane is provided on the flat end of the hemisphere. The top of each of the two side walls of the frame is provided with a shaft hole. The two sides of the hemisphere are symmetrically provided with connecting shafts that are adapted to the shaft holes. The connecting shafts are rotatably engaged with the shaft holes to allow the hemisphere to swing freely within the frame. Under the action of gravity, regardless of whether the frame is tilted as a whole, the flat end of the hemisphere is always horizontal to the ground, providing a stable horizontal reference for the magnetic rod. The attitude locking component is located inside the frame and below the hemisphere. The attitude locking component restricts the swaying of the hemisphere and fixes the attitude of the hemisphere. A magnetic rod support is provided above the flat frustum. The magnetic rod support is U-shaped and clamps and fixes the magnetic rod to prevent it from shifting during operation.

[0005] Furthermore, the attitude locking assembly includes a positioning arc plate, support rods, and sliding sliders. The positioning arc plate is slidably disposed within the lower end of the bracket and below the hemisphere. Two support rods and two sliding sliders are provided. The support rods are symmetrically positioned below both ends of the positioning arc plate, and the sliding sliders are located below the support rods. The upper and lower ends of the support rods are hinged to the positioning arc plate and the sliding sliders, respectively. A friction layer is provided on the inner side of the positioning arc plate. A support frame is fixedly provided at the lower end of the bracket. An adjusting screw and a guide rod are provided within the support frame. The adjusting screw and guide rod are symmetrically arranged, and the adjusting screw is a double-threaded rod. The sliding slider is located below the support rod. Inside the support frame, the sliding slider is threadedly connected to the adjusting screw, and the guide rod passes through the sliding slider. A limiting partition block is provided in the middle of the support frame, and two sliding sliders are symmetrically arranged on both sides of the limiting partition block. An adjusting motor that drives the adjusting screw is fixed on the outside of the support frame. The friction layer of the positioning arc plate is tightly attached to the spherical end of the hemisphere. Through the friction between the friction layer and the spherical end, the swaying of the hemisphere is restricted, thereby fixing the attitude of the hemisphere and locking the current attitude of the magnetic rod. When it is necessary to readjust the attitude of the magnetic rod, the positioning arc plate is separated from the spherical end of the hemisphere, and the hemisphere can sway freely again under the action of gravity to restore the horizontal state.

[0006] Furthermore, a level and a compass are provided on the planar circular platform. The compass is located on the extension line of the magnetic rod support and at the center of the planar circular platform. The compass indicates the orientation of the magnetic rod in real time, which allows the operator to adjust the direction of the support through the damping shaft according to the exploration needs, so that the magnetic rod is accurately aligned with the target exploration direction. The operator can visually verify the horizontal state of the hemispherical plane end by observing the position of the bubble on the level, ensuring the accuracy of the magnetic rod's posture.

[0007] The beneficial effects of this utility model by adopting the above structure are as follows:

[0008] 1. Utilizing the gravity-driven principle of the hemispherical shape, its flat end is always parallel to the horizontal plane, allowing the magnetic rod placed on it to quickly reach a horizontal state, achieving automatic horizontal calibration of the magnetic rod without the need for repeated manual adjustments, simplifying the operation process and improving work efficiency.

[0009] 2. The bracket and the base are connected by a damping pivot, which allows the bracket to rotate flexibly in any direction and maintain the adjusted angle stably, enabling quick and precise adjustment of the magnetic rod orientation to meet the directional requirements of different exploration scenarios.

[0010] 3. After the magnetic rod's attitude is adjusted, it is firmly locked by the attitude locking component to prevent attitude changes during subsequent operations or due to external forces, thus ensuring the stability of the magnetic rod throughout the exploration process and improving the reliability of exploration data. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the magnetic rod attitude adjustment structure proposed in this scheme;

[0012] Figure 2 This is a top view of the magnetic rod attitude adjustment structure proposed in this scheme;

[0013] Figure 3 This is a schematic diagram of the magnetic rod attitude adjustment structure proposed in this scheme in its usage state.

[0014] Figure 4 This is a three-dimensional view of the attitude locking component mechanism of the magnetic rod attitude adjustment structure proposed in this scheme.

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. In the drawings: 1. Base, 2. Support, 3. Hemisphere, 4. Attitude locking assembly, 5. Damping shaft, 6. Planar frustum, 7. Shaft hole, 8. Connecting shaft, 9. Magnetic rod support, 10. Positioning arc plate, 11. Support rod, 12. Sliding slider, 13. Support frame, 14. Adjusting screw, 15. Guide rod, 16. Limiting separator, 17. Adjusting motor, 18. Friction layer, 19. Anti-slip layer, 20. Level, 21. Compass. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 and Figure 2 As shown, the proposed electromagnetic exploration magnetic rod attitude adjustment structure includes a base 1, a support 2, a hemisphere 3, and an attitude locking component 4. The support 2 is located above the base 1. A damping shaft 5 is provided between the base 1 and the support 2, connecting the base 1 and the support 2. The hemisphere 3 is located inside the support 2. A planar frustum 6 is provided on the flat end of the hemisphere 3. A shaft hole 7 is provided at the top of each of the two side walls of the support 2. Connecting shafts 8 that are adapted to the shaft holes 7 are symmetrically provided on both sides of the hemisphere 3. The connecting shafts 8 and the shaft holes 7 are rotatably engaged. The attitude locking component 4 is located inside the support 2 and below the hemisphere 3. A magnetic rod support 9 is provided above the planar frustum 6. The magnetic rod support 9 is arranged in a U-shape.

[0018] like Figure 3 and Figure 4As shown, the attitude locking assembly 4 includes a positioning arc plate 10, a support rod 11, and a sliding slider 12. The positioning arc plate 10 is slidably disposed inside the lower end of the bracket 2 and below the hemisphere 3. Two support rods 11 and two sliding sliders 12 are provided. The support rods 11 are symmetrically arranged below both ends of the positioning arc plate 10, and the sliding sliders 12 are located below the support rods 11. The upper and lower ends of the support rods 11 are hinged to the positioning arc plate 10 and the sliding sliders 12, respectively. A friction layer 18 is provided on the inner side of the positioning arc plate 10, and a support frame is fixedly provided at the lower end of the bracket 2. 13. The support frame 13 is provided with an adjusting screw 14 and a guide rod 15. The adjusting screw 14 and the guide rod 15 are symmetrically arranged. The adjusting screw 14 is a double-threaded rod. The sliding slider 12 is provided in the support frame 13. The sliding slider 12 is threadedly connected to the adjusting screw 14. The guide rod 15 passes through the sliding slider 12. The support frame 13 is provided with a limiting partition block 16 in the middle. Two sliding sliders 12 are symmetrically arranged on both sides of the limiting partition block 16. An adjusting motor 17 for driving the adjusting screw 14 is fixed on the outside of the support frame 13.

[0019] The planar frustum 6 is equipped with a level 20 and a compass 21. The compass 21 is located on the extension line of the magnetic rod support 9 and at the center of the planar frustum 6.

[0020] In practical use, first place the base 1 on the ground at the exploration site. The anti-slip layer 19 enhances the stability of the base 1 with the ground. Place the magnetic rod in the magnetic rod holder 9. According to the direction of the exploration target, determine the required orientation of the magnetic rod using the compass 21. Rotate the holder 2. The damping shaft 5 provides damping force to make the holder 2 rotate slowly. After the magnetic rod is aligned with the target direction, the holder 2 maintains the current angle under the action of damping force.

[0021] Since the hemisphere 3 is rotatably connected to the support 2 via the connecting shaft 8, and its center of gravity is concentrated below the spherical end, the hemisphere 3 automatically adjusts its posture under the action of gravity, keeping its flat end level with the ground. The operator can confirm the horizontal state of the hemisphere 3 by observing the position of the bubble on the level 20 on the flat circular platform 6. Finally, the external power supply is connected and the adjusting motor 17 is started in the forward direction. The adjusting motor 17 drives the adjusting screw 14 to rotate. The rotating adjusting screw 14 drives the two sliding sliders 12 to move along the guide rod 15 towards the limiting separator 16. The sliding sliders 12 cause the support rod 11 to deform, causing the support rod 11 to push the positioning arc upward. The friction layer 18 of the positioning arc plate 10 is tightly attached to the spherical end of the hemisphere 3, fixing the hemisphere 3 through friction and preventing it from shaking under external interference, thereby locking the posture of the magnetic rod and ensuring that the magnetic rod always maintains a stable horizontal state and accurate orientation during exploration operations, thus improving the accuracy of exploration data.

[0022] After data acquisition is completed, connect the external power supply and reverse the start of the adjustment motor 17. The adjustment motor 17 drives the two sliding sliders 12 away from the limit separator block 16 through the adjustment screw 14. The sliding sliders 12 drive the support rod 11 to deform, so that the support rod 11 drives the positioning arc to move downward. The positioning arc plate 10 separates from the spherical end of the hemisphere 3. Release the lock and you can move to the next measuring point.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic rod attitude adjustment structure for electromagnetic exploration, characterized in that: The device includes a base, a bracket, a hemisphere, and an attitude locking assembly. The bracket is located above the base, and a damping shaft connects the base and the bracket. The hemisphere is located inside the bracket, and a frustum is located on the flat end of the hemisphere. A shaft hole is located at the top of each of the two side walls of the bracket. Connecting shafts that fit the shaft holes are symmetrically located on both sides of the hemisphere, and the connecting shafts rotate with the shaft holes. The attitude locking assembly is located inside the bracket and below the hemisphere. A magnetic rod bracket is located above the frustum, and the magnetic rod bracket is arranged in a U-shape.

2. The magnetic rod attitude adjustment structure for electromagnetic exploration according to claim 1, characterized in that: The attitude locking assembly includes a positioning arc plate, a support rod, and a sliding slider. The positioning arc plate is slidably disposed inside the lower end of the bracket and below the hemisphere. There are two support rods and two sliding sliders. The support rods are symmetrically disposed below both ends of the positioning arc plate, and the sliding sliders are disposed below the support rods. The upper and lower ends of the support rods are hinged to the positioning arc plate and the sliding slider, respectively.

3. The magnetic rod attitude adjustment structure for electromagnetic exploration according to claim 2, characterized in that: The lower end of the bracket is fixedly provided with a support frame. The support frame is provided with an adjusting screw and a guide rod. The adjusting screw and the guide rod are symmetrically arranged. The adjusting screw is a double-threaded rod. The sliding slider is located in the support frame and is threadedly connected to the adjusting screw. The guide rod passes through the sliding slider. A limiting partition block is provided in the middle of the support frame. Two sliding sliders are symmetrically arranged on both sides of the limiting partition block. An adjusting motor for driving the adjusting screw is fixedly provided on the outside of the support frame.

4. The magnetic rod attitude adjustment structure for electromagnetic exploration according to claim 1, characterized in that: A level and a compass are provided on the flat circular platform. The compass is located on the extension line of the magnetic rod support and at the center of the flat circular platform.

5. The magnetic rod attitude adjustment structure for electromagnetic exploration according to claim 2, characterized in that: The inner side of the positioning arc plate is provided with a friction layer.

6. The magnetic rod attitude adjustment structure for electromagnetic exploration according to claim 1, characterized in that: The base has an anti-slip layer on its bottom wall.

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