Device for improving geophysical prospecting electrical method grounding condition in shallow bed rock area

Abstract

The utility model discloses a device for improving geophysical prospecting electrical method grounding conditions in a shallow bed rock area, which is provided with an electrode base body, the electrode base body is of a long-strip-column-shaped structure, one end of the electrode base body is provided with a conical column head, the electrode base body is internally provided with a liquid storage soft bag, a puncture needle is arranged above the liquid storage soft bag, and the electrode base body is provided with an electrode core. The puncture needle is installed on the rotating seat, an overflow channel is arranged in the rotating seat, and a hammering cap is detachably installed on the rotating seat. By arranging the liquid storage soft bag, the puncture needle, the overflow channel and the like, the resistance reducing liquid is pre-stored in the device, and a resistance reducing agent does not need to be manually and repeatedly applied on site, so that the operation process is simplified, and the working efficiency is improved. Under the complex terrain condition of a shallow bedrock area, the grounding resistance can be rapidly improved, and the problems that a traditional method is tedious in operation and inconvenient to carry are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical measurement, specifically relates to a device for improving geophysical electrical method grounding condition in shallow bedrock area. BACKGROUND

[0002] In electrical measurement work, the size of grounding resistance plays a decisive role in the accuracy and reliability of measurement results. High grounding resistance will cause the collected voltage or current value to decrease, seriously affecting the accuracy of data. Grounding resistance is mainly affected by the soil resistivity of the contact electrode and the electrode size.

[0003] Currently, to reduce the grounding resistance, high electrochemical stability red copper electrode is often used in electrode material selection, and threaded steel such as threaded electrode is avoided, because the thread is easy to roll up the soil to form a gap, which hinders the electrode from fully contacting the soil, thereby increasing the grounding resistance. At the same time, the smoother the electrode surface, the more fully the electrode contacts the soil, and the more conducive to reducing the grounding resistance.

[0004] For soil improvement, the common method is to pour water or resistance reducing agent around the electrode and tamp the soil after the grounding electrode is inserted into the soil. This method can make the electrode closely contact the soil, expand the current flow surface, and also can improve the soil conductivity ion concentration by diffusion and penetration of the resistance reducing agent, reduce the soil resistivity, and maintain the soil conductivity by using the water absorption and water retention characteristics of the resistance reducing agent, but the operation is complicated, not convenient to carry, and needs artificial continuous irrigation, which greatly increases the construction difficulty and time cost, and reduces the work efficiency. In the shallow bedrock area, due to the shallow rock layer, the traditional method is more difficult to implement, further highlighting the necessity of developing a new grounding device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a device for improving geophysical electrical method grounding condition in shallow bedrock area, to solve the problems of complicated operation, low efficiency and the like existing in the prior art grounding resistance reduction method.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A device for improving geophysical electrical method grounding condition in shallow bedrock area is provided, which is provided with an electrode base body, the electrode base body is in a long strip columnar shape structure, one end of the electrode base body is provided with a tapered column head, a liquid storage soft bag is arranged in the inside of the electrode base body, a puncture needle is arranged above the liquid storage soft bag, the puncture needle is installed on a rotating seat, an overflow channel is arranged in the inside of the rotating seat, and a hammering cover cap is detachably installed on the rotating seat.

[0008] Preferably, the electrode base is internally provided with a containing chamber, the liquid storage soft bag is elastically mounted in the containing chamber, the bottom of the containing chamber is provided with a first spring, the first spring is connected with a piston baffle, and one end of the liquid storage soft bag abuts against the piston baffle.

[0009] Preferably, the rotating seat is threadedly mounted on the electrode base, the bottom of the rotating seat is rotatably mounted with a bearing sleeve ring, and the other end of the liquid storage soft bag abuts against the bearing sleeve ring.

[0010] Preferably, the overflow channel and the puncture needle are matched with each other, the rotating seat is internally provided with a communicating cavity, and the puncture needle is in a hollow structure.

[0011] Preferably, the top of the rotating seat is provided with a sliding block, and one end of the puncture needle is mounted on the sliding block.

[0012] Preferably, the sliding block is elastically mounted in the communicating cavity, the bottom of the sliding block is connected with a second spring, and a limiting baffle is arranged between the sliding block and the communicating cavity.

[0013] Preferably, the hammering cap is sleevedly mounted on the rotating seat, and the hammering cap and the rotating seat are matched and mounted in a magnetic attraction mode.

[0014] Preferably, the hammering cap is internally provided with a first magnetic attraction strip, the first magnetic attraction strip is arranged on the inner side wall of the hammering cap, the rotating seat is provided with a second magnetic attraction strip, and the second magnetic attraction strip is arranged on the outer side wall of the rotating seat.

[0015] Compared with the prior art, the device has the beneficial effects that:

[0016] 1. The device pre-stores the resistance-reducing liquid in the device through the structures of the liquid storage soft bag, the puncture needle and the overflow channel, and does not need to manually repeatedly pour the resistance-reducing agent on the site, thereby simplifying the operation process and improving the work efficiency. In the shallow bedrock area complex terrain conditions, the grounding resistance improvement operation can be quickly completed, and the problems of the traditional method of complicated operation and inconvenience in carrying are effectively solved.

[0017] 2. The device has the advantages that the cooperation of the first spring and the piston baffle ensures the full use of the liquid in the liquid storage soft bag, the bearing sleeve ring reduces the friction between the rotating seat and the liquid storage soft bag, the magnetic attraction type hammering cap is convenient to install and operate, can effectively transmit the hammering force, ensures that the puncture needle smoothly punctures the liquid storage soft bag, and thus the grounding resistance is stably and efficiently reduced, and the accuracy and reliability of the electric method measurement are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1This is a three-dimensional structural diagram of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the device of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall internal structure of the device of this utility model;

[0021] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A;

[0022] Figure 5 For the present utility model Figure 3 A magnified view of the structure at point B.

[0023] In the diagram: 1. Electrode substrate; 2. Conical column head; 3. Liquid reservoir; 4. Puncture needle; 5. Rotating seat; 6. Overflow channel; 7. Hammer cap; 8. Receiving chamber; 9. First spring; 10. Piston baffle; 11. Bearing ring; 12. Connecting cavity; 13. Sliding block; 14. Second spring; 15. Limiting baffle; 16. First magnetic strip; 17. Second magnetic strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: As Figures 1 to 5 As shown, this utility model provides a device for improving grounding conditions in shallow bedrock areas using geophysical electrical methods, comprising an electrode substrate 1. The electrode substrate 1 is a long, cylindrical structure with a conical head 2 at one end for easy insertion into the soil of shallow bedrock areas, reducing insertion resistance. A liquid storage bladder 3 is disposed inside the electrode substrate 1 to store resistance-reducing liquid or water. A piercing needle 4 is positioned above the liquid storage bladder 3 and is mounted on a rotating base 5. The rotating base 5 has an overflow channel 6 inside, and a hammer cap 7 is detachably mounted on the rotating base 5.

[0026] Specifically, the electrode base 1 is internally provided with a containing chamber 8, and the liquid storage soft bag 3 is elastically mounted in the containing chamber 8. The bottom of the containing chamber 8 is provided with a first spring 9, the first spring 9 is connected with a piston baffle 10, and one end of the liquid storage soft bag 3 abuts against the piston baffle 10. The first spring 9 can buffer and support the liquid storage soft bag 3, when the liquid in the liquid storage soft bag 3 is reduced, under the action of the spring elastic force, the piston baffle 10 can push the liquid storage soft bag 3 to move upward, so that the liquid storage soft bag 3 can always contact the piercing needle 4, and the smooth flow of the liquid is ensured. And the piston baffle 10 can provide internal sealing to prevent the loss of the liquid in the liquid storage soft bag 3.

[0027] The rotating seat 5 is threadedly rotatably mounted on the electrode base 1 to ensure stability, and the bottom of the rotating seat 5 is rotatably mounted with a bearing sleeve ring 11, and the other end of the liquid storage soft bag 3 abuts against the bearing sleeve ring 11. This structure design makes the bearing sleeve ring 11 reduce the friction between the rotating seat 5 and the liquid storage soft bag 3 when the rotating seat 5 rotates, so that the rotating seat 5 rotates smoothly, and the liquid storage soft bag 3 can also be stably supported.

[0028] The overflow channel 6 and the piercing needle 4 cooperate with each other, the rotating seat 5 is internally provided with a communication cavity 12, and the piercing needle 4 has a hollow structure. When the piercing needle 4 pierces the liquid storage soft bag 3, the resistance-reducing liquid in the liquid storage soft bag 3 first flows out through the overflow channel 6, then passes through the hollow part of the piercing needle 4, and then flows out of the outside of the sliding block 13, so that the resistance-reducing liquid is released in a targeted manner. Thus, the resistance-reducing liquid gradually flows downward along the outer wall of the electrode base 1 and penetrates into the soil, so that the electrode base 1 is in full contact with the soil, and the effect of reducing the grounding resistance is achieved.

[0029] The sliding block 13 is arranged at the top of the rotating seat 5, and one end of the piercing needle 4 is mounted on the sliding block 13. The sliding block 13 can slide in the communication cavity 12 of the rotating seat 5, so as to adjust the position of the piercing needle 4 and ensure that the liquid storage soft bag 3 can be accurately pierced when needed. Specifically, the sliding block 13 is elastically mounted in the communication cavity 12, the bottom of the sliding block 13 is connected with a second spring 14, and a limiting baffle 15 is arranged between the sliding block 13 and the communication cavity 12. The second spring 14 can keep the sliding block 13 at the initial position when it is not subjected to external force, and when subjected to external force (such as hammering the hammer cap 7 to drive the rotating seat 5 to move downward), the sliding block 13 can compress the second spring 14 to move downward and drive the piercing needle 4 to pierce the liquid storage soft bag 3. The limiting baffle 15 can prevent the sliding block 13 from moving excessively, so as to ensure the stability of the device structure.

[0030] Further, the hammer cap 7 is sleevedly mounted on the rotating seat 5, and the hammer cap 7 and the rotating seat 5 are magnetically attracted and matched. The hammer cap 7 is internally provided with a first magnetic attraction strip 16 arranged on the inner side wall of the hammer cap 7, and the rotating seat 5 is provided with a second magnetic attraction strip 17 arranged on the outer side wall of the rotating seat 5. The magnetic attraction matching facilitates the installation and removal of the hammer cap 7. In use, the hammer cap 7 can be hammered to drive the rotating seat 5 to drive the piercing needle 4 to pierce the liquid storage soft bag 3, and the operation is simple and convenient. In addition, since the first magnetic attraction strip 16 and the second magnetic attraction strip 17 are both arranged on the side, when the hammer cap 7 is impacted by external force (such as hammering), the magnetic attraction effect and service life of the first magnetic attraction strip 16 and the second magnetic attraction strip 17 will not be affected, thereby ensuring the reliability of the magnetic attraction.

[0031] Embodiment two: The difference from embodiment one is that the magnetic attraction and detachable mounting manner of the hammer cap 7 and the rotating seat 5 is adjusted to a magic tape form. The magnetic attraction strip can also be replaced by a magic tape structure. When the hammer cap 7 and the rotating seat 5 are nested and matched, the magic tape can also have a stable pasting effect and can be repeatedly used, and has a long service life.

[0032] Workflow: When using the device, first hold the electrode base body 1, align the conical column head 2 with the position to be inserted, and use the design of the conical column head 2 to easily insert the electrode base body 1 into the soil. Hammering can also be used for hammering assistance.

[0033] When the electrode base body 1 is inserted to the appropriate depth, the hammer cap 7 is picked up, pressure is applied to the sliding block 13 (which can be pressed by hand or knocked by external tools), and under the action of the pressure, the sliding block 13 at the top of the rotating seat 5 compresses the second spring 14 at the bottom to move downward, driving the piercing needle 4 mounted on the sliding block 13 to move downward. Since the piercing needle 4 is a hollow structure and cooperates with the overflow channel 6, when the piercing needle 4 pierces the liquid storage soft bag 3, the resistance reducing liquid stored in the liquid storage soft bag 3 flows out through the hollow part of the piercing needle 4 and the overflow channel 6, and penetrates into the soil around the electrode base body 1.

[0034] The liquid storage soft bag 3 is installed in the accommodating chamber 8 inside the electrode base body 1, and the first spring 9 and the piston baffle 10 at the bottom of the accommodating chamber 8 push the liquid storage soft bag 3 to move upward when the liquid in the liquid storage soft bag 3 decreases, so that the liquid storage soft bag 3 can always contact the piercing needle 4, and the resistance reducing liquid continuously flows out. At the same time, the bearing sleeve 11 at the bottom of the rotating seat 5 can ensure smooth rotation of the rotating seat 5 and reduce the friction between the rotating seat 5 and the liquid storage soft bag 3.

[0035] After the resistance reducing liquid flows out, it will diffuse into the soil around the electrode, increasing the concentration of conductive ions in the soil, reducing the soil resistivity, and thus improving the grounding conditions and reducing the grounding resistance, providing a more accurate and reliable basis for electrical measurement. After the measurement is completed, the motor base can be normally recovered. The electrode base 1 of the utility model design can be repeatedly used, and can also be used as a disposable accessory. When repeated use is required, only the internal liquid storage soft bag 3 needs to be replaced.

[0036] It should be noted that, in order to ensure the reliability of the electrode base 1 test, the structure design of the accommodating chamber 8 can be adjusted according to the actual situation, so that it can still maintain structural integrity and stable performance of the electrode base 1 under the physical changes such as thermal expansion and contraction caused by large current. Based on the principle of electricity, as long as the material of the accommodating chamber 8 is properly selected, such as using electrically insulating and heat-resistant materials, no additional current leakage or shunt will be caused when a large current passes through, thereby ensuring that the current can stably pass through the electrode base 1 for testing.

[0037] The liquid storage soft bag 3 also has the same effect, that is, the liquid storage soft bag 3 not only does not have adverse effects, but also has a positive effect on large current testing. When a large current passes through the electrode base 1, the temperature of the surrounding soil will rise, and the moisture between the soil particles may be lost due to heating, resulting in an increase in soil resistivity. The resistance reducing liquid stored in the liquid storage soft bag 3 can continuously supplement the moisture and conductive ions in the soil during the large current test. The electrolyte component in the resistance reducing liquid will ionize in the soil, forming more conductive ion paths, reducing the resistivity of the soil due to temperature changes, ensuring the stability of the grounding performance, and making the large current test result more reliable.

[0038] In summary, the device for improving the grounding conditions of electrical prospecting in the shallow bedrock area provided by the utility model has a reasonable structure design and is easy to operate, which can effectively solve the problem of high grounding resistance in electrical prospecting in the shallow bedrock area, and improve the efficiency and accuracy of measurement work. In practical application, the device can be further optimized and improved according to different measurement environments and requirements.

[0039] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A device for improving geophysical electrical grounding conditions in a shallow bedrock area, characterized by, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

2. The device for improving geophysical electrical grounding conditions in the shallow bedrock zone according to claim 1, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

3. The device for improving geophysical electrical grounding conditions in the shallow bedrock zone according to claim 2, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

4. The device for improving geophysical electrical grounding conditions in a shallow bedrock zone according to claim 1, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

5. The device for improving geophysical electrical grounding conditions in the shallow bedrock zone according to claim 4, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

6. The device for improving geophysical electrical grounding conditions in the shallow bedrock zone according to claim 5, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

7. The device for improving geophysical electrical grounding conditions in the shallow bedrock zone according to claim 1, characterized in that, The utility model provides an electrode base (1) is provided with, the electrode base (1) is long strip column shape structure, the one end of electrode base (1) is provided with the tapering post head (2), the inside of electrode base (1) is provided with liquid storage soft sac (3), is provided with the puncture needle (4) in the upper of liquid storage soft sac (3), the puncture needle (4) is installed on the rotating seat (5), the inside of rotating seat (5) is provided with overflow channel (6), the hammering cap (7) of detachable installation is installed on the rotating seat (5).

8. The device for improving geophysical electrical grounding conditions in a shallow bedrock zone according to claim 7, characterized in that, ​

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