Portable monitoring device for ground microseism

Abstract

The utility model belongs to the technical field of earthquake monitoring, and particularly relates to a ground micro-earthquake portable monitoring device which comprises a carrying box, a protective shell is fixed on the upper surface of the outer wall of the carrying box, the front end of the protective shell is rotatably connected with a front cover plate through a hinge, a display device is fixed in the protective shell, and the display device is connected with the front cover plate through a hinge. The display device is arranged in the protective shell, the monitoring rod is arranged in the carrying box, the whole device is convenient to carry at will, when the device is used, the monitoring rod can be directly taken down and installed in the carrying box, and the monitoring rod is electrically connected with the display device through a data line; the earthquake can be monitored by inserting the monitoring rod into the soil, the operation is simple, and the device can be effectively protected in the use process, so that the device is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of earthquake monitoring technology, specifically a portable ground micro-earthquake monitoring device. Background Technology

[0002] Unconventional oil and gas resources are widely distributed and have long-term stable production capacity, making them a potential energy source for the future. However, unconventional oil and gas reservoirs are characterized by low porosity and low permeability, which makes it difficult to effectively exploit and utilize these resources. Hydraulic fracturing of tight reservoirs can effectively improve oil and gas production capacity. Microseismic monitoring technology can effectively monitor the fracturing status of reservoirs and effectively evaluate the effects of hydraulic fracturing, thus providing guidance for the efficient exploration and development of unconventional oil and gas reservoirs.

[0003] However, current earthquake monitoring devices still have the following technical problems in use:

[0004] Because ground-based microseismic monitoring devices are high-precision monitoring equipment, current monitoring devices are not convenient to carry. They are easily damaged by bumps and knocks during installation or transport, which affects the normal use of the monitoring devices.

[0005] Therefore, a portable ground microseismic monitoring device is proposed to address the aforementioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a portable ground microseismic monitoring device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a portable ground micro-seismic monitoring device, including a carrying case, a protective shell fixed to the upper surface of the outer wall of the carrying case, a front cover plate rotatably connected to the front end of the protective shell via a hinge, and a display device fixed inside the protective shell;

[0008] The carrying case has protective base plates slidably connected to both sides of its lower part. Two mounting brackets are fixed to the upper surface of the inner wall of the carrying case by mounting bolts. A support bracket is fixed between the two mounting brackets. A symmetrical placement bracket is fixed to the upper side of the support bracket. Multiple placement grooves are provided on the placement bracket. Monitoring rods and insertion rods are inserted into the placement grooves. There are two insertion rods, which are symmetrically arranged on both sides of the monitoring rod. A pressing mechanism is provided above the monitoring rod and the two insertion rods.

[0009] Mounting blocks are fixed on both sides of the lower part of the carrying case. Each mounting block is threaded with a limit bolt, and the lower end of the limit bolt is engaged with the upper surface of the protective base plate.

[0010] The inner wall of the carrying case is fixed with an installation tube, and both sides of the installation tube are threaded with fixing bolts.

[0011] Preferably, both protective base plates are provided with insertion holes, the two insertion rods are adapted to the insertion holes, and the upper side of both protective base plates is fixed with a pull rod.

[0012] Preferably, a protective pad is fixed to the lower edge of the carrying case.

[0013] Preferably, the mounting portion at one end of the monitoring rod is adapted to the mounting tube.

[0014] Preferably, the pressing mechanism includes a support plate, which is fixedly connected to the upper surface of the support frame and spans across the monitoring rod. A telescopic rod is fixed to the lower surface of the support plate, and a pressing plate is fixed to the bottom end of the telescopic rod. A deformable rubber strip is fixed to the lower surface of the pressing plate. A spring is sleeved on the outside of the telescopic rod. The top end of the spring is fixedly connected to the inner top wall of the support plate, and the bottom end of the spring is fixedly connected to the surface side of the pressing plate. The lower surface of the deformable rubber strip contacts the monitoring rod and the two insertion rods.

[0015] Preferably, both the carrying case and the protective shell have wire holes on their side walls, and the monitoring rod is electrically connected to the display device via a data cable.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This application places the display device inside the protective casing and the monitoring rod inside the carrying case. The entire device is easy to carry and can be used anywhere. When in use, the monitoring rod can be directly removed and installed inside the carrying case. It is electrically connected to the display device via a data cable. The monitoring rod can be inserted into the soil to monitor earthquakes. The operation is simple, and the device can be effectively protected during use to prevent damage. Attached Figure Description

[0018] Figure 1 The attached figure is a schematic diagram of the overall structure provided by this utility model;

[0019] Figure 2 The attached figure is a schematic diagram of the internal structure provided by this utility model;

[0020] Figure 3 The attached figure is a structural schematic diagram of the placement frame, monitoring rod, and insertion rod provided by this utility model;

[0021] Figure 4 The attached figure is a structural schematic diagram of the pressing mechanism provided by this utility model;

[0022] Figure 5 The attached figure is a structural schematic diagram of the protective base plate and tie rod provided by this utility model.

[0023] In the picture:

[0024] 1-Carrying case; 2-Protective outer shell; 3-Display device; 4-Protective base plate; 5-Mounting frame; 6-Support frame; 7-Placement frame; 8-Monitoring rod; 9-Insertion rod; 10-Mounting block; 11-Mounting tube; 12-Pull rod; 13-Support plate; 14-Telescopic rod; 15-Pressing plate; 16-Deformable rubber strip; 17-Spring. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example:

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] A portable ground micro-seismic monitoring device includes a carrying case 1. A protective shell 2 is fixed to the upper surface of the outer wall of the carrying case 1. A front cover is rotatably connected to the front end of the protective shell 2 via a hinge. The front cover is magnetically attached to the front end of the protective shell 2. The two front covers can only be opened when force is pulled. A display device 3 is fixed inside the protective shell 2.

[0030] The lower sides of the carrying case 1 are slidably connected to protective base plates 4. The upper surface of the inner wall of the carrying case 1 is fixed with two mounting brackets 5 by mounting bolts. A support bracket 6 is fixed between the two mounting brackets 5. A symmetrical placement bracket 7 is fixed on the support bracket 6. The placement bracket 7 has multiple placement grooves. A monitoring rod 8 and a plug rod 9 are inserted into the placement grooves. There are two plug rods 9, which are symmetrically arranged on both sides of the monitoring rod 8. A pressing mechanism is provided above the monitoring rod 8 and the two plug rods 9. The pressing mechanism fixes the monitoring rod 8 and the plug rod 9 to the upper end of the placement bracket 7. When needed, the mounting bracket 5 and the placement bracket 7 can be removed from the inside of the carrying case 1.

[0031] Mounting blocks 10 are fixed on both sides of the lower part of the carrying case 1. Limiting bolts are threaded onto both mounting blocks 10, and the lower end of the limiting bolts is engaged with the upper surface of the protective base plate 4.

[0032] An installation tube 11 is fixed to the upper surface of the inner wall of the carrying case 1. Both sides of the installation tube 11 are threaded with fixing bolts. The installation tube 11 and the fixing bolts are used to fix the left end of the monitoring rod 8, so that the monitoring rod 8 is fixed longitudinally inside the carrying case 1 and can be inserted into the soil and contact the soil.

[0033] Both protective base plates 4 have insertion holes, and two insertion rods 9 are adapted to the insertion holes. Both protective base plates 4 have pull rods 12 fixed on their upper sides. During the monitoring process, the two insertion rods 9 pass through the insertion holes and are inserted into the soil, so that the carrying case 1 and the protective shell 2 are firmly fixed on the ground.

[0034] The lower edge of the carrying case 1 is fixed with a protective pad, which can prevent the ground from causing wear and tear on the bottom of the carrying case 1 during use.

[0035] The mounting part at one end of the monitoring rod 8 is adapted to the mounting tube 11. After inserting the left end of the monitoring rod 8 into the interior of the mounting tube 11, it is tightened by fixing bolts.

[0036] The pressing mechanism includes a support plate 13, which is fixedly connected to the upper surface of the support frame 6 and spans across the monitoring rod 8. A telescopic rod 14 is fixed to the lower surface of the support plate 13, and a pressing plate 15 is fixed to the bottom end of the telescopic rod 14. A deformable rubber strip 16 is fixed to the lower surface of the pressing plate 15. A spring 17 is sleeved on the outside of the telescopic rod 14. The top end of the spring 17 is fixedly connected to the inner top wall of the support plate 13, and the bottom end of the spring 17 is fixedly connected to the upper surface of the pressing plate 15. The lower surface of the deformable rubber strip 16 contacts the monitoring rod 8 and the two insertion rods 9. The pressing mechanism is used to press and fix the monitoring rod 8 and the insertion rods 9 to prevent them from shaking and being damaged during carrying.

[0037] Both the carrying case 1 and the protective shell 2 have wire holes on their side walls. The monitoring rod 8 is electrically connected to the display device 3 via a data cable. When the monitoring rod 8 and the display device 3 need to be used, the data cable needs to be passed through the two wire holes and electrically connected to the monitoring rod 8 and the display device 3. The data cable is not specifically shown in this application.

[0038] The monitoring rod 8 and the display device 3 are not described in detail in this application, as this part of the monitoring and transmission is prior art;

[0039] Earthquake monitoring principle: The sensors in the monitoring rod are generally accelerometers or velocity sensors. When a micro-earthquake occurs, the seismic waves cause ground vibrations. These vibrations are transmitted to the monitoring rod, causing the sensitive elements inside the sensors to move accordingly. For example, the accelerometer generates an electrical signal proportional to the acceleration of the ground vibration; the velocity sensor outputs a corresponding electrical signal based on the velocity changes of the ground vibration.

[0040] Converting to electrical signals: Based on different working principles, sensors convert mechanical vibrations into electrical signals. For example, piezoelectric accelerometers utilize the property of piezoelectric materials to generate charges when subjected to mechanical stress, converting acceleration changes caused by earthquakes into charge signals, and then into voltage signals; capacitive sensors, on the other hand, generate vibration-related electrical signals by observing the changes in the distance between capacitor plates caused by vibration, which leads to changes in capacitance.

[0041] Data transmission process

[0042] Analog signal processing: The electrical signals output by sensors are usually analog signals, which are first transmitted to the data acquisition unit of the monitoring device. In the data acquisition unit, the analog signals are amplified and filtered to improve signal quality and stability, enhance their anti-interference ability, and adjust the signal amplitude to a suitable range for subsequent digital processing.

[0043] Digital conversion: The processed analog signal is converted into a digital signal by an analog-to-digital converter (ADC) so that a computer or other digital processing device can process and store it. Digital signals have higher accuracy and interference resistance, facilitating subsequent analysis and transmission;

[0044] Data transmission to the display device: The digitized data is transmitted to the display device via a data cable. Shielded cables are typically used to minimize the impact of external electromagnetic interference on data transmission. During transmission, the data may employ specific encoding methods and communication protocols to ensure accurate transmission and reception. Upon receiving the data, the display device decodes, analyzes, and visualizes it using appropriate software programs, presenting the seismic monitoring data to the user in the form of waveforms, charts, or numbers, allowing the user to intuitively understand relevant information about microseismic events.

[0045] Working principle:

[0046] In use, the display device 3 is fixed inside the protective shell 2, and the monitoring rod 8 is fixed inside the carrying case 1 for easy carrying. When carried to the location to be tested, the protective shell 2 and the carrying case 1 are tilted, the two lower protective base plates 4 are opened, the mounting frame 5 and the support frame 6 are removed from the carrying case 1, the pressing mechanism on the monitoring rod 8 and the insertion rod 9 is released, the left end of the monitoring rod 8 is fixed to the mounting tube 11, the lower end of the monitoring rod 8 is inserted into the soil to make contact with the soil, and the monitoring rod 8 is electrically connected to the display device 3 through the data cable. The two insertion rods 9 are inserted through the insertion holes and into the soil to reinforce the entire device. The data monitored by the monitoring rod 8 is directly displayed through the display device 3. When not in use, the insertion rods 9 and the monitoring rod 8 are installed on the upper end of the support frame 6 and fixed inside the carrying case 1 through the mounting frame 5. The two protective base plates 4 are then closed.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0048] 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 portable monitoring device for ground microseismic, comprising a carrying case (1), characterized in that, The outer wall upper surface of the carrying case (1) is fixed with a protective shell (2), the front end of the protective shell (2) is rotatably connected with a front cover plate through a hinge, and the inside of the protective shell (2) is fixed with a display device (3). The lower sides of the carrying case (1) are slidably connected with protective bottom plates (4), the upper surface of the inner wall of the carrying case (1) is fixed with two mounting racks (5) through mounting bolts, the two mounting racks (5) are fixed with a support frame (6) therebetween, the support frame (6) is fixed with symmetric placement racks (7) thereon, a plurality of placement grooves are formed in the placement racks (7), monitoring rods (8) and insertion rods (9) are clamped in the placement grooves, the number of the insertion rods (9) is two, and the insertion rods (9) are symmetrically arranged on the two sides of the monitoring rods (8), and a pressing mechanism is arranged above the monitoring rods (8) and the two insertion rods (9). The lower sides of the carrying case (1) are fixed with mounting blocks (10), limit bolts are threadedly connected to the two mounting blocks (10), and the lower ends of the limit bolts are clamped with the upper surfaces of the protective bottom plates (4). The upper surface of the inner wall of the carrying case (1) is fixed with a mounting pipe (11), and the two sides of the mounting pipe (11) are threadedly connected with fixing bolts.

2. The portable ground microseismic monitoring device of claim 1, wherein: Insertion holes are formed in the two protective bottom plates (4), the two insertion rods (9) are matched with the insertion holes, and pull rods (12) are fixed to the upper sides of the two protective bottom plates (4).

3. The portable ground microseismic monitoring device of claim 1, wherein: The lower side edges of the carrying case (1) are fixed with protective pads.

4. The portable ground microseismic monitoring device of claim 1, wherein: The mounting part at one end of the monitoring rod (8) is matched with the mounting pipe (11).

5. The portable ground microseismic monitoring device of claim 1, wherein: The pressing mechanism comprises a support plate (13), the support plate (13) is fixedly connected with the upper surface of the support frame (6) and straddles above the monitoring rods (8), the lower surface of the support plate (13) is fixed with a telescopic rod (14), the bottom end of the telescopic rod (14) is fixed with a pressing plate (15), the lower surface of the pressing plate (15) is fixed with a deformation rubber strip (16), the outside of the telescopic rod (14) is sleeved with a spring (17), the top end of the spring (17) is fixedly connected with the inner top wall of the support plate (13), the bottom end of the spring (17) is fixedly connected with the upper surface of the pressing plate (15), and the lower surface of the deformation rubber strip (16) is in contact with the monitoring rods (8) and the two insertion rods (9).

6. The portable ground microseismic monitoring device of claim 1, wherein: The side walls of the carrying case (1) and the protective shell (2) are provided with threading holes, and the monitoring rods (8) are electrically connected with the display device (3) through data lines.

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