Science popularization demonstration device for air source excitation experiment

Abstract

The invention discloses a science popularization demonstration device for an air source excitation experiment, and relates to the field of demonstration devices.The science popularization demonstration device comprises a box body, an experiment groove is formed in the box body, an underground medium simulation filler is arranged on one side of the experiment groove, and a support is fixedly connected to the bottom end of the interior of the box body; the device has the advantages that an air source excitation experiment can be successfully simulated by integrating components such as the gas storage bottle, the pressure release valve, the connecting buckle, the inhaul cable, the guide wheel, the limiting seat and the vibration sensor, earthquake science and technology innovation achievements are displayed in a visual and specific mode, the understanding of audiences on earthquake prevention and disaster reduction science and technology achievements is deepened, and in addition, the device is low in construction cost and easy to popularize. The acquisition, processing and installation are easy; the gas storage bottle can be quickly inflated through the inflation pump, the gas inlet pipe, the quick plug, the four-way connector and other components, so that the time for carrying out an experiment again can be shortened, and the continuity and efficiency of the experiment are ensured.

Description

Technical Field

[0001] The invention relates to the field of demonstration devices, and in particular to a popular science demonstration device for air seismic source excitation experiments. Background Art

[0002] As an advanced geophysical exploration technology, air source seismic has been widely and deeply applied in the field of geophysical research due to its significant advantages such as green environmental protection, simple operation and high repeatability. This technology can release high-pressure compressed air instantly through a precisely designed mechanism. This process is like a powerful source of power, which effectively drives the violent vibration of the surrounding water body, cleverly simulates the earthquake effect, and then stimulates clear and discernible seismic waves. As a unique physical phenomenon, seismic waves have strong penetrating ability and can easily pass through complex underground medium structures, including rock layers, soil layers and even deeper geological structures. It is based on this characteristic of seismic waves that researchers can use seismic waves stimulated by air sources to conduct in-depth tracking research on underground medium changes in specific areas. In this process, researchers can obtain rich information about the structure, composition and even dynamic changes of underground media by receiving and analyzing the reflected seismic wave signals. This information is of great value in revealing the mysteries of the earth's interior, monitoring geological disasters, and evaluating resource reserves. Therefore, the widespread application of air source technology has not only promoted the in-depth development of the field of geophysical research, but also provided strong technical support for humans to better understand and utilize earth resources.

[0003] However, in the existing technology, air source excitation experiments lack corresponding scientific popularization and demonstration devices, which hinders people's in-depth understanding of this scientific and technological achievement and thus affects the improvement of earthquake prevention and disaster reduction awareness. Summary of the invention

[0004] The purpose of the present invention is to provide a popular science demonstration device for air source excitation experiment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a popular science demonstration device for air source excitation experiment, comprising a box body and a gas storage bottle, wherein an experimental slot is provided inside the box body, and an underground medium simulation filler is provided on one side of the experimental slot, and a bracket is fixedly connected to the bottom end of the box body, and a fixing bolt is provided inside the bracket, and a clamp for fixing the gas storage bottle is provided on the bracket;

[0006] A second one-way valve is arranged on the right side of the gas storage cylinder, a pressure relief valve is arranged on the right side of the second one-way valve, a connecting buckle is arranged outside the pressure relief valve, a cable is fixedly connected to the right side of the connecting buckle, a pull ring is arranged at the other end of the cable, and a fixing seat is fixedly connected to the side wall of the box body;

[0007] A rotating shaft is arranged on the inner wall of the fixing seat, a guide wheel is fixedly connected to the rear side of the rotating shaft, a limiter is arranged at a position of the side wall of the box away from the fixing seat, a base is arranged on the box, a vibration sensor is arranged at the upper end of the base, and a cone is fixedly connected to the lower end of the base.

[0008] Preferably, a first one-way valve is provided on the left side of the gas storage cylinder, a fixing ring is provided on the left side of the first one-way valve, a quick-connector is provided on the left side of the fixing ring, and a connecting pipe is provided on the left side of the quick-connector.

[0009] Preferably, a four-way joint is provided at the other end of the connecting pipe, a pressure gauge is provided at the upper end of the four-way joint, an exhaust valve is provided at the lower end of the four-way joint, a quick plug is provided on the left side of the four-way joint, an air intake pipe is provided on the other side of the quick plug, and an air pump is provided at the other end of the air intake pipe.

[0010] Preferably, the vibration sensors are provided in multiple groups and are symmetrically arranged about the center line of the box.

[0011] Preferably, the guide wheel is movably connected to the fixing seat via a rotating shaft.

[0012] Preferably, the connecting pipe is movably connected to the first one-way valve via a quick-connect connector.

[0013] Preferably, the air inlet pipe is movably connected to the four-way joint via a quick plug.

[0014] By adopting the above scheme, the following technical effects can be achieved: the gas cylinder can be quickly inflated through components such as the air pump, the air inlet pipe, the quick plug, the four-way connector, etc., thereby shortening the time for conducting the experiment again and ensuring the continuity and efficiency of the experiment.

[0015] By adopting the above technical solution, by pulling the pull ring, the pull ring pulls the cable to move to one side, and during its movement, it drives the connecting buckle and the pressure relief valve to move. At this time, the gas in the gas cylinder is discharged through the pressure relief valve, and the discharged gas enters the water in the test tank and causes the water to shake. This shaking is accurately captured by the vibration sensor, and the vibration sensor will convert the captured signal and transmit it to the external display device for the audience to view in real time. The configuration of multiple groups of vibration sensors not only expands the capture range of vibration signals, but also improves the capture accuracy. At the same time, the setting of the guide wheel effectively provides a guiding effect for the cable, significantly enhancing the smoothness and stability of the cable when sliding, ensuring the smooth progress of the test. By integrating components such as gas cylinders, pressure relief valves, connecting buckles, cables, guide wheels, limit seats and vibration sensors, the air source excitation experiment can be successfully simulated, and the achievements of earthquake science and technology innovation are displayed in an intuitive and specific way, deepening the audience's understanding of the scientific and technological achievements of earthquake prevention and disaster reduction. In addition, the device is low in construction cost and easy to obtain, process and install.

[0016] By adopting the above technical solution, by inserting the free end of the air inlet pipe into the quick plug and starting the inflation pump, the gas flows from the inflation pipe into the four-way joint under the action of the inflation pump. Under the action of the air pressure gauge, the experimenter can monitor and regulate the air pressure entering the gas cylinder in real time, and can also use the exhaust valve to discharge the necessary gas. The gas entering the four-way joint is then injected into the gas cylinder through the connecting pipe. The setting of the first one-way valve effectively prevents the backflow of gas in the gas cylinder, ensuring the normal operation of the gas cylinder. When the inflation is completed, the experimenter can easily disassemble the air inlet pipe through the quick plug for reuse next time. The gas cylinder can be quickly inflated through the inflation pump, air inlet pipe, quick plug, four-way joint and other components, thereby shortening the time for conducting the experiment again and ensuring the continuity and efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the box body of the present invention.

[0019] Figure 3 It is a schematic diagram of the support structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the gas storage cylinder of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of a four-way joint of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the vibration sensor of the present invention.

[0023] In the figure: 1. box; 2. experimental tank; 3. bracket; 4. gas cylinder; 5. clamp; 6. pressure relief valve; 7. connecting buckle; 8. cable; 9. fixing seat; 10. guide wheel; 11. limiter; 12. base; 13. vibration sensor; 14. first one-way valve; 15. fixing ring; 16. quick plug connector; 17. connecting pipe; 18. four-way connector; 19. air pressure gauge; 20. exhaust valve; 21. quick plug; 22. air inlet pipe; 23. air pump; 24. pull ring; 25. cone; 26. rotating shaft; 27. fixing bolt; 28. underground medium simulation filler; 29. ​​second one-way valve. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 6 The present invention provides a technical solution: a popular science demonstration device for air source excitation experiment, comprising a box body 1 and a gas cylinder 4, wherein an experimental slot 2 is provided inside the box body 1, and an underground medium simulation filler 28 is provided on one side of the experimental slot 2, a bracket 3 is fixedly connected to the bottom end of the box body 1, a fixing bolt 27 is provided inside the bracket 3, a clamp 5 for fixing the gas cylinder 4 is provided on the bracket 3, a second one-way valve 29 is provided on the right side of the gas cylinder 4, a pressure relief valve 6 is provided on the right side of the second one-way valve 29, a connecting buckle 7 is provided outside the pressure relief valve 6, and the right side of the connecting buckle 7 is fixed A pull cable 8 is connected, and a pull ring 24 is provided at the other end of the pull cable 8. A fixing seat 9 is fixedly connected to the side wall of the box body 1, and a rotating shaft 26 is provided on the inner wall of the fixing seat 9. A guide wheel 10 is fixedly connected to the rear side of the rotating shaft 26. A limiter 11 is provided at a position of the side wall of the box body 1 away from the fixing seat 9. A base 12 is provided on the box body 1, and a vibration sensor 13 is provided at the upper end of the base 12. A cone 25 is fixedly connected to the lower end of the base 12. There are multiple groups of vibration sensors 13, and they are symmetrically arranged about the center line of the box body 1. The guide wheel 10 is movably connected to the fixing seat 9 through the rotating shaft 26.

[0027] Specifically, pull the pull ring 24, the pull ring 24 pulls the cable 8 to move to one side, and during the movement, the connecting buckle 7 and the pressure relief valve 6 are driven to move. At this time, the gas in the gas cylinder 4 is discharged through the pressure relief valve 6, and the discharged gas enters the water in the test tank and causes the water to shake. This shaking is accurately captured by the vibration sensor 13, and the vibration sensor 13 will convert the captured signal and transmit it to the external display device for the audience to view in real time. The configuration of multiple groups of vibration sensors 13 not only expands the capture range of vibration signals, but also improves the capture accuracy. At the same time, the setting of the guide wheel 10 effectively provides a guiding effect for the cable 8, significantly enhancing the smoothness and stability of the cable 8 when sliding, ensuring the smooth progress of the test. By integrating components such as the gas cylinder 4, the pressure relief valve 6, the connecting buckle 7, the cable 8, the guide wheel 10, the limit seat and the vibration sensor 13, the air source excitation experiment can be successfully simulated, and the display can be presented in an intuitive and specific way. The invention discloses the scientific and technological innovation achievements of earthquake and deepens the audience's understanding of the scientific and technological achievements of earthquake prevention and disaster reduction. In addition, the device has low construction cost and is easy to obtain, process and install. During the experiment, the staff can press the vibration sensor 13 to make the cone 25 at the lower end of the sensor in close contact with the box body 1 to ensure the effective collection of experimental signals. When disassembling the gas cylinder 4 that has been used for a long time, it is only necessary to rotate the fixing bolt 27. By using the screw hole design inside the bracket 3, the fixing bolt 27 will slide out and release the lock on the clamp 5, and then the gas cylinder 4 can be easily pulled to one side to complete the disassembly. During installation, the gas cylinder 4 is placed on the upper end of the bracket 3, and the lower end of the clamp 5 is close to the gas cylinder 4. The fixing bolt 27 is rotated in the opposite direction to make it enter the inside of the bracket 3 and lock the clamp 5, thereby quickly completing the installation and fixation of the gas cylinder 4. The gas cylinder 4 can be quickly loaded and unloaded through the fixing bolt 27, the clamp 5, the bracket 3 and other components, so that it can be repaired after long-term use, and the difficulty of repair can also be reduced.

[0028] Embodiment 2

[0029] See also Figure 1-Figure 6 The present invention provides a technical solution: a popular science demonstration device for an air source excitation experiment, wherein a first one-way valve 14 is arranged on the left side of a gas storage cylinder 4, a fixing ring 15 is arranged on the left side of the first one-way valve 14, a quick-plug connector 16 is arranged on the left side of the fixing ring 15, a connecting pipe 17 is arranged on the left side of the quick-plug connector 16, a four-way connector 18 is arranged on the other end of the connecting pipe 17, an air pressure gauge 19 is arranged on the upper end of the four-way connector 18, an exhaust valve 20 is arranged on the lower end of the four-way connector 18, a quick plug 21 is arranged on the left side of the four-way connector 18, an air intake pipe 22 is arranged on the other side of the quick plug 21, and an air pump 23 is arranged on the other end of the air intake pipe 22, the connecting pipe 17 is movably connected to the first one-way valve 14 through the quick plug 16, and the air intake pipe 22 is movably connected to the four-way connector 18 through the quick plug 21.

[0030] Specifically, the free end of the air inlet pipe 22 is inserted into the quick plug 21 and the inflation pump 23 is started. Under the action of the inflation pump 23, the gas flows from the inflation pipe into the four-way joint 18. Under the action of the air pressure gauge 19, the experimenter can monitor and regulate the air pressure entering the gas cylinder 4 in real time, and can also use the exhaust valve 20 to perform necessary gas discharge. The gas entering the four-way joint 18 is then injected into the gas cylinder 4 through the connecting pipe 17. The setting of the first one-way valve 14 effectively prevents the backflow of gas in the gas cylinder 4, ensuring the normal operation of the gas cylinder 4. When the inflation is completed, the experimenter can easily disassemble the air inlet pipe 22 through the quick plug 21 for reuse next time. The gas cylinder 4 can be quickly inflated through the inflation pump 23, the air inlet pipe 22, the quick plug 21, the four-way joint 18 and other components, thereby shortening the time for conducting the experiment again and ensuring the continuity and efficiency of the experiment.

[0031] Working principle: In the operation of the popular science demonstration device of the air source excitation experiment, the experimenter can first replace the filler on one side of the experimental tank 2 according to the specific needs of the experiment, aiming to help the audience understand the characteristics of the different propagation speeds of seismic waves in different media. Then, the gas bottle 4 is firmly fixed to the upper end of the bracket 3 through the clamp 5. Then, the left end of the gas bottle 4 is connected to the connecting pipe 17 to ensure that the gas can be smoothly transmitted. Subsequently, the water required for the experiment is poured into the experimental tank 2. Finally, the free end of the air inlet pipe 22 is inserted into the quick plug 21 and the air pump 23 is started. Under the action of the air pump 23, the gas flows from the air pipe into the inside of the four-way joint 18. Under the action of the air pressure gauge 19, the experimenter can monitor and control in real time. The air pressure entering the gas cylinder 4 can also be used to discharge the necessary gas by using the exhaust valve 20, and the gas entering the four-way joint 18 is then injected into the gas cylinder 4 through the connecting pipe 17. The setting of the first one-way valve 14 effectively prevents the backflow of the gas in the gas cylinder 4, ensuring the normal operation of the gas cylinder 4. When the inflation is completed, the experimenter can easily disassemble the air inlet pipe 22 through the quick plug 21, so that it is convenient for reuse next time. The gas cylinder 4 can be quickly inflated through the components such as the inflation pump 23, the air inlet pipe 22, the quick plug 21, and the four-way joint 18, thereby shortening the time for conducting the experiment again and ensuring the continuity and efficiency of the experiment. After the inflation is completed, pull the pull ring 24, and the pull ring 24 pulls the cable 8 to move to one side. During the movement The connecting buckle 7 and the pressure relief valve 6 will be driven to move. At this time, the gas in the gas cylinder 4 is discharged through the pressure relief valve 6, and the discharged gas enters the water in the test tank and causes the water to shake. This shaking is accurately captured by the vibration sensor 13, and the vibration sensor 13 will convert the captured signal and transmit it to the external display device for the audience to view in real time. The configuration of multiple groups of vibration sensors 13 not only expands the capture range of vibration signals, but also improves the capture accuracy. At the same time, the setting of the guide wheel 10 effectively provides a guiding effect for the cable 8, significantly enhancing the smoothness and stability of the cable 8 when sliding, ensuring the smooth progress of the test. By integrating the gas cylinder 4, the pressure relief valve 6, the connecting buckle 7, the cable 8, the guide wheel 10, the limit seat and the vibration sensor Components such as the sensor 13 can successfully simulate air source excitation experiments, demonstrating the results of earthquake science and technology innovation in an intuitive and specific way, and deepening the audience's understanding of the scientific and technological achievements in earthquake prevention and disaster reduction. In addition, the device is low-cost to build and easy to obtain, process and install. During the experiment, the staff can press the vibration sensor 13 to make the lower cone 25 of the sensor 13 in close contact with the box 1 to ensure the effective collection of experimental signals. When disassembling the gas cylinder 4 that has been used for a long time, it is only necessary to turn the fixing bolt 27. Using the screw hole design inside the bracket 3, the fixing bolt 27 will slide out and release the lock on the clamp 5. Then, the gas cylinder 4 can be easily pulled to one side to complete the disassembly. During installation, place the gas cylinder 4 on the upper end of the bracket 3, and the lower end of the clamp 5 is close to the gas cylinder 4.The fixing bolt 27 is rotated in the opposite direction to enter the inside of the bracket 3 and lock the clamp 5, so that the gas cylinder 4 can be installed and fixed quickly. The gas cylinder 4 can be quickly loaded and unloaded through the fixing bolt 27, the clamp 5, the bracket 3 and other components, so that it can be repaired after long-term use, and the difficulty of maintenance can also be reduced.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A popular science demonstration device for air source excitation experiment, comprising a box (1) and a gas storage bottle (4), characterized in that: An experimental tank (2) is provided inside the box (1), an underground medium simulation filler (28) is provided on one side of the experimental tank (2), a bracket (3) is fixedly connected to the bottom end of the box (1), a fixing bolt (27) is provided inside the bracket (3), and a clamp (5) for fixing the gas storage bottle (4) is provided on the bracket (3); A second one-way valve (29) is arranged on the right side of the gas storage cylinder (4), a pressure relief valve (6) is arranged on the right side of the second one-way valve (29), a connecting buckle (7) is arranged outside the pressure relief valve (6), a cable (8) is fixedly connected to the right side of the connecting buckle (7), a pull ring (24) is arranged at the other end of the cable (8), and a fixing seat (9) is fixedly connected to the side wall of the box body (1); The inner wall of the fixed seat (9) is provided with a rotating shaft (26), the rear side of the rotating shaft (26) is fixedly connected to a guide wheel (10), a side wall of the box body (1) is provided with a limiter (11) at a position away from the fixed seat (9), a base (12) is provided on the box body (1), a vibration sensor (13) is provided at the upper end of the base (12), and a cone (25) is fixedly connected to the lower end of the base (12).

2. The popular science demonstration device for air source excitation experiment according to claim 1, characterized in that: A first one-way valve (14) is arranged on the left side of the gas storage cylinder (4), a fixing ring (15) is arranged on the left side of the first one-way valve (14), a quick-connect connector (16) is arranged on the left side of the fixing ring (15), and a connecting pipe (17) is arranged on the left side of the quick-connect connector (16).

3. The popular science demonstration device for air source excitation experiment according to claim 2, characterized in that: The other end of the connecting pipe (17) is provided with a four-way joint (18), the upper end of the four-way joint (18) is provided with a pressure gauge (19), the lower end of the four-way joint (18) is provided with an exhaust valve (20), the left side of the four-way joint (18) is provided with a quick plug (21), the other side of the quick plug (21) is provided with an air intake pipe (22), and the other end of the air intake pipe (22) is provided with an air pump (23).

4. The popular science demonstration device for air source excitation experiment according to claim 1, characterized in that: The vibration sensors (13) are provided in multiple groups and are arranged symmetrically about the center line of the box (1).

5. The popular science demonstration device for air source excitation experiment according to claim 1, characterized in that: The guide wheel (10) is movably connected to the fixing seat (9) via a rotating shaft (26).

6. The popular science demonstration device for air source excitation experiment according to claim 2, characterized in that: The connecting pipe (17) is movably connected to the first one-way valve (14) via a quick-insert connector (16).

7. The popular science demonstration device for air source excitation experiment according to claim 3, characterized in that: The air inlet pipe (22) is movably connected to the four-way joint (18) via a quick plug (21).

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