Mobile observation device for seismic observation

Abstract

This application relates to the field of seismic observation, and specifically relates to a mobile observation device for seismic observation, including a seismometer. The seismometer includes a seismometer body, a placement base, and a protective cover. The protective cover includes a main body portion with an open upper end, an upper blocking portion for closing the upper end of the main body portion, and a heat insulation portion. The upper blocking portion includes a number of blocking sheets, and the blocking sheets are rotatably connected to the upper end of the main body portion. During the transportation process and the use process after installation, the protective cover protects the seismometer body from external collisions, and the heat insulation portion provides shock protection for the seismometer body, thereby reducing the probability of device damage and failure. At the same time, the heat insulation portion can also play a certain role in heat insulation and wind prevention, making the use environment of the seismometer body more ideal and reducing its measurement error. When debugging the seismometer body, the upper blocking portion can be directly opened without removing the seismometer body, which is more convenient to operate. At the same time, the seismometer body is also protected to a certain extent during the debugging process.

Description

Technical Field

[0001] This application relates to the field of seismic observation, and particularly to a mobile observation device for seismic observation. Background Art

[0002] Seismic mobile observation is to deploy seismic instruments on the Earth's surface or underground to record changes in seismic activities. Seismic instruments include seismometers, accelerometers, etc., which can measure the vibration and acceleration of seismic waves. By processing seismic mobile observation data and extracting the characteristics of seismic waves, the underground geological structure and parameters of seismic events can be inferred therefrom.

[0003] Existing seismic instruments generally do not have protection and are carried by ordinary packaging boxes when leaving the factory. They are taken out and placed on-site during use. During installation, first clean the surface of the pier to ensure good contact between the support feet of the seismometer and the installation surface.

[0004] Secondly, use a compass to determine the north-south direction, and use tools such as a ruler to draw an accurate north-south pointing line on the pier, and at the same time clarify the magnetic north direction. The pointing line should pass through the center position where the seismometer will be placed. By adjusting the seismometer to make the copper pointer at its bottom consistent with the pointing line, the accurate pointing of the seismometer is ensured. If the pointer cannot be directly observed, the north arrow on the handle can be adjusted to align with the pointing line.

[0005] After that, place the seismometer on the pier, and ensure that the horizontal bubble at the top of the seismometer is completely moved to the center position of the circle by adjusting the three foot screws of the seismometer. Finally, connect the pendulum wire to the seismometer and fix the pendulum wire to complete the installation of the seismometer.

[0006] Currently, the comprehensive protection of mobile observation equipment during transportation and after installation has not been considered. Therefore, how to protect seismic instruments to reduce equipment failure caused by their damage is an urgent problem for those skilled in the art. Summary of the Invention

[0007] In order to improve the comprehensive protection of the mobile observation device, this application provides a mobile observation device for seismic observation.

[0008] A mobile observation device for seismic observation provided by this application adopts the following technical solutions:

[0009] A mobile observation device for seismic observation, comprising a mobile network center and mobile observation stations. The mobile network center includes a power supply device, a control device, and a communication device. The mobile observation stations include pier blocks, seismometers, and data collectors. The seismometer includes a seismometer body, a placement base, and a protective cover. The protective cover is installed on the placement base. The seismometer body is installed on the placement base and is located inside the protective cover. The protective cover includes a main body part with an open upper end, an upper blocking part for closing the upper end of the main body part, and a heat insulation part for heat insulation. The upper blocking part includes a plurality of blocking sheets, and the blocking sheets are rotatably connected to the upper end of the main body part; when adjacent blocking sheets abut against each other, the blocking sheets close the upper end of the main body part and form a through hole for the line of the seismometer body to pass through; when adjacent blocking sheets rotate outwards and separate from each other, the opening of the main body part is opened; the heat insulation part includes a fixed part attached to the inner wall of the main body part and a movable part attached to the blocking sheet. The heat insulation part is hollow and elastic; when the blocking sheet closes the upper end of the main body part, the heat insulation part presses tightly against the seismometer body; when the blocking sheet opens the upper end of the main body part, there is a gap between the heat insulation part and the seismometer body.

[0010] By adopting the above technical solution, during the transportation process and the use process after installation, the protective cover protects the seismometer body from external collisions, and the heat insulation part limits the seismometer body to achieve shock protection, thereby reducing the probability of device damage and failure. At the same time, the heat insulation part can also play a certain role in heat insulation and wind prevention, making the use environment of the seismometer body more ideal and reducing its measurement error. At the same time, when debugging the seismometer body, the upper blocking part can be directly opened without taking out the seismometer body, which is more convenient to operate, and the seismometer body is also protected to a certain extent during the debugging process.

[0011] Optionally, the heat insulation part is made of an airbag. The inner cavities of the fixed part and the movable part are communicated and the outer walls are fixed to each other. A control valve for inflating and deflating the heat insulation part is provided on the heat insulation part.

[0012] By adopting the above technical solution, the heat insulation part fits better with the seismometer body, improving the heat preservation performance and buffering ability.

[0013] Optionally, when the movable part is inflated and expanded, it closes the through hole and presses tightly against the line of the seismometer body; when the blocking sheet is opened, the upper end of the seismometer body is exposed outside the main body part.

[0014] By adopting the above technical solution, enough space is provided to facilitate the user to debug and operate the seismometer body.

[0015] Optionally, the lower end of the protective cover is open, and the placement base is slidably connected to the lower end of the protective cover and is used to close the lower end of the protective cover; when the seismometer is placed on the pendulum pier, the placement base is slid to open the lower end opening of the protective cover, and the seismometer body falls on the pendulum pier and is horizontally arranged.

[0016] By adopting the above technical solution, the seismometer body is still protected during the installation process. At the same time, it can also ensure that the seismometer body fits the pier to detect seismic waves.

[0017] Optionally, the placement base includes two symmetrically arranged support plates, which are slidably connected to the protective cover in the horizontal direction and fixed to the protective cover in the vertical direction, and when the two support plates abut against each other, the support plates close the lower end of the protective cover; the upward side of the support plate includes a support surface for supporting the seismometer body and a guide surface for guiding the seismometer body to slide downward, and the support surface is supported by one end of the guide surface away from the other support plate; when the two support plates slide outward, the seismometer body falls on the guide surface and moves downward along the guide surface.

[0018] Optionally, the protective cover is provided with a driving mechanism for driving the two support plates to slide synchronously outward or inward.

[0019] By adopting the above technical solution, the seismometer body is kept in a horizontal falling and non-inclined state as much as possible during the falling process, so that the seismometer body shell falls on the swing pier more stably.

[0020] Optionally, the driving mechanism includes a mounting block positioned and slidably connected to the main body along the vertical direction, and a transmission rod rotatably connected to the mounting block. Two transmission rods are provided and one transmission rod corresponds to one support plate. One end of the transmission rod is rotatably connected to the mounting block and the other end is rotatably connected to the support plate.

[0021] Optionally, when the control valve is closed, the drive mechanism is locked.

[0022] By adopting the above technical solution, it is possible to prevent the seismometer body from falling due to the driving mechanism opening the support plate during transportation.

[0023] Optionally, the swing pier includes a mounting portion, a horizontal portion universally mounted above the mounting portion, and a leveling assembly for adjusting the horizontal portion to be horizontal, wherein a pointing line and a level ruler are provided on the horizontal portion.

[0024] By adopting the above technical solution, the level of the horizontal part can be directly adjusted through the leveling component, and the placement direction of the protective cover on the pier can be determined by the pointing line, so there is no need to open the protective cover to adjust the position and levelness of the seismometer body, and the operation is more convenient.

[0025] Optionally, the leveling assembly includes at least three leveling members evenly distributed on the mounting portion. Each leveling member includes an adjusting block slidably connected to the mounting portion along the radial direction of the horizontal portion and an adjusting force applying member for driving the adjusting block to move relative to the mounting portion. An adjusting inclined surface is provided on the adjusting block, and the adjusting inclined surface supports the lower end surface of the horizontal portion.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. During the transportation process and the subsequent use process after installation, it provides protection against external collisions and vibrations for the seismometer body, thereby reducing the probability of device damage and failure;

[0028] 2. It plays a certain role in heat insulation and wind prevention, making the usage environment of the seismometer body more ideal and reducing its measurement error;

[0029] 3. It makes the installation operation and debugging operation more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of Embodiment 1.

[0031] Figure 2 It is a schematic structural diagram of the seismometer and the pendulum pier in Embodiment 1.

[0032] Figure 3 It is a cross-sectional view of the seismometer body in Embodiment 1.

[0033] Figure 4 It is a schematic structural diagram of the seismometer and the pendulum pier in Embodiment 2.

[0034] Figure 5 It is a cross-sectional view of the seismometer body in Embodiment 2.

[0035] Figure 6 It is a cross-sectional view of the seismometer and the pendulum pier in Embodiment 2.

[0036] Figure 7 It is a schematic structural diagram of the seismometer body in Embodiment 2.

[0037] Figure 8 It is a cross-sectional view of the seismometer body in Embodiment 3.

[0038] Description of reference numerals: 1. Mobile network center; 2. Mobile observation station; 3. Pendulum pier; 31. Horizontal part; 311. Limit groove; 312. Annular inclined surface; 313. Wire groove; 32. Installation part; 321. Groove; 33. Connecting ball head; 34. Leveling member; 341. Adjusting block; 3411. Adjusting inclined surface; 342. Adjusting force application member; 4. Seismometer body; 5. Placing base; 51. Support plate; 511. Guide surface; 52. Driving mechanism; 521. Installation block; 522. Transmission rod; 523. Adjusting screw; 524. Limit rod; 6. Protective cover; 61. Main body part; 611. Adjusting groove; 612. Fixed screw hole; 62. Upper blocking part; 621. Blocking piece; 63. Heat insulation part; 631. Fixed part; 632. Movable part; 633. Control valve; 7. Limit block; 8. Locking handle; 81. Locking rod. Detailed implementation manners

[0039] The following further elaborates on this application Figure 1-8 in conjunction with the attached drawings.

[0040] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The embodiment of this application discloses a mobile observation device for seismic observation.

[0043] Embodiment 1:

[0044] Please refer to Figure 1 and Figure 2, in an embodiment of the present application, a mobile observation device for seismic observation includes a mobile network center 1 and a mobile observation station 2. The mobile network center 1 includes a power supply device, a control device, and a communication device. The mobile observation station 2 includes a pier 3, a seismometer, and a data collector.

[0045] Multiple mobile observation stations can form a seismic observation station within a small area. During installation, the pier 3 has been pre-buried in a soft soil site or fixed to a rock slab site through materials such as cement. The seismometer is transported to the pier 3 and then installed on the pier 3.

[0046] Please refer to Figure 2 and Figure 3 , in order to protect the seismometer during transportation and after installation, the seismometer includes a seismometer body 4, a placement base 5, and a protective cover 6. The protective cover 6 is installed on the placement base 5, and the seismometer body 4 is installed on the placement base 5 and is located inside the protective cover 6. The protective cover 6 includes a main body portion 61 with an open upper end, an upper blocking portion 62 for closing the upper end of the main body portion 61, and a heat insulation portion 63 for heat insulation. In this embodiment, the main body portion 61 is arranged as a hollow cuboid.

[0047] The upper blocking portion includes several blocking pieces 621. In this embodiment, there are four blocking pieces 621 and they are distributed corresponding to the four side walls of the main body portion 61. The blocking pieces 621 are rotatably connected to the upper end of the main body portion 61. When the adjacent blocking pieces 621 are in contact with each other, the blocking pieces 621 form an umbrella-shaped top to close the upper end of the main body portion 61 and form a through hole for the line of the seismometer body 4 to pass through; when the adjacent blocking pieces 621 rotate outwards and separate from each other, the opening of the main body portion 61 is opened. When the blocking pieces 621 are opened, the upper end of the seismometer body 4 is exposed outside the main body portion 61.

[0048] The heat insulation portion 63 includes a fixed portion 631 attached to the inner wall of the main body portion 61 and a movable portion 632 attached to the blocking pieces 621. The heat insulation portion 63 is hollow and elastic. In this embodiment, the heat insulation portion 63 is made of an airbag. The inner cavities of the fixed portion 631 and the movable portion 632 are communicated and their outer walls are fixed to each other. The heat insulation portion 63 is provided with a control valve 633 for inflating and deflating the heat insulation portion 63. The control valve 633 can be a butterfly valve, a squeeze valve, an airbag valve, etc. In this embodiment, the control valve 633 is a butterfly valve. When the blocking pieces 621 close the upper end of the main body portion 61, the heat insulation portion 63 is inflated and expanded to tightly press against the seismometer body 4, and closes the through hole and tightly presses against the line of the seismometer body 4; when the blocking pieces 621 open the upper end of the main body portion 61, the control valve 633 is opened to deflate the heat insulation portion 63, so that there is a gap between the heat insulation portion 63 and the seismometer body 4.

[0049] During transportation, the heat insulation part 63 is inflated, and the seismometer body 4 is fixed and heat-insulated through the heat insulation part 63, reducing the damage impact caused by vibration and ambient temperature on the seismometer body 4 during transportation. The protective cover 6 completely covers the seismometer body 4, protecting the seismometer body 4 from physical impact and rain during transportation, and also reducing the damage impact on the seismometer body 4. If the seismometer body 4 needs to be debugged, the control valve 633 can be opened to deflate the heat insulation part 63, and then the blocking piece 621 can be opened, and the upper end of the seismometer body 4 is exposed outside the main body part 61. At this time, the seismometer body 4 can be debugged.

[0050] To prevent the upper end of the protective cover 6 from being opened accidentally due to misoperation, a locking handle 8 is provided on the protective cover 6. Both ends of the locking handle 8 are rotatably connected with locking rods 81, and the locking rods 81 are threadedly connected to the upper end of one of the blocking pieces 621. When the blocking piece 621 needs to be rotated, the locking rod needs to be screwed to separate the locking handle 8 from the blocking piece 621, so as to achieve the unlocking effect. In other embodiments, at least three locking rods 81 can be provided on the locking handle 8, and one locking rod 81 corresponds to one blocking piece 621. Multiple locking handles 8 can also be provided, and one locking handle corresponds to two blocking pieces 621.

[0051] Embodiment 2:

[0052] Please refer to Figure 4 、 Figure 5 and Figure 6 , the difference between Embodiment 2 and Embodiment 1 is that in order to complete the installation of the seismometer without taking out the seismometer body 4 from the protective cover 6, the lower end of the protective cover 6 is open, and the placement base 5 is slidably connected to the lower end of the protective cover 6 and is used to close the lower end of the protective cover 6. The pendulum pier 3 includes an installation part 32, a horizontal part 31 installed above the installation part 32, and a leveling component for adjusting the horizontal part 31 to be horizontal. A groove 321 for accommodating the horizontal part 31 is formed on the installation part 32. A connecting ball head 33 is provided on the lower end surface of the horizontal part 31, and a connecting ball groove is provided on the bottom wall of the groove 321. The connecting ball head 33 is rotatably connected to the connecting ball groove, so as to realize the universal connection between the horizontal part 31 and the installation part 32. A limiting groove 311 for accommodating the seismometer body 4 is formed on the horizontal part 31. A pointing line and a spirit level are provided on the horizontal part 31. A marking line corresponding to the pointing line is provided on the protective cover 6.

[0053] Before installing the seismometer, first adjust the horizontal part 31 relative to the installation part 32 through the leveling component until the horizontal part 31 is adjusted to be horizontal. The specific requirement is that the bubble on the spirit level is located in the middle of the spirit level. Then place the seismometer on the horizontal part 31 so that the marking line is aligned with the pointing line, which can ensure that the seismometer body 4 is placed horizontally and in the correct direction; open the control valve 633 to release air, so that the seismometer body 4 loses the restriction of the heat insulation part 63 on it. Finally, slide the placement base 5 to open the lower opening of the protective cover 6, and the seismometer body 4 falls into the limit groove 311, thus completing the installation of the seismometer body 4. During the process, it is not necessary to take out the seismometer body 4 from the protective cover 6, and the seismometer body 4 is still protected during the installation process. At the same time, it is not necessary to open the upper blocking part 62, and the operation is convenient. If necessary, after the seismometer body 4 falls into the limit groove 311, the heat insulation part 63 can still be inflated so that it restricts the seismometer body 4 again, so that the seismometer body 4 is installed more stably in the protective cover 6, and it can also play a role in heat insulation, rain protection, earthquake protection and other protection effects on the seismometer body 4.

[0054] Please refer to Figure 5 、 Figure 6 and Figure 7 ., the leveling component includes at least three leveling parts 34 evenly distributed on the installation part 32. The leveling part 34 includes a leveling block slidably connected to the installation part 32 along the radial direction of the horizontal part 31 and an adjusting force-applying part 342 for driving the adjusting block 341 to move relative to the installation part 32. An adjusting inclined surface 3411 is provided on the adjusting block 341, and the adjusting inclined surface 3411 supports the lower end surface of the horizontal part 31. The adjusting force-applying part 342 is arranged along the radial direction of the horizontal part 31 and is threadedly connected to the installation part 32. One end of the adjusting force-applying part 342 is rotatably connected to the adjusting block 341 and is fixedly connected to the adjusting block 341 along its axial direction. The adjusting block 341 is located in the groove 321. When adjusting the level of the horizontal part 31, the adjusting force-applying part 342 can be rotated, so as to drive the adjusting block 341 to approach or move away from the horizontal part 31, thereby adjusting the height of the horizontal part 31 at this point. After adjusting multiple adjusting blocks 341, the horizontal part 31 can be adjusted to a horizontal state.

[0055] In order to better support the horizontal part 31, a circular inclined surface 312 is provided at the lower end of the horizontal part 31. The angle of the circular inclined surface 312 is the same as that of the adjusting inclined surface 3411, and the adjusting inclined surface 3411 abuts and supports the circular inclined surface 312.

[0056] In order to more conveniently adjust the seismometer to an accurate direction, a wire groove 313 is provided at the position of the horizontal portion 31 corresponding to the pointing line, and a limit block 7 is provided on the protective cover 6, and the limit block 7 corresponds to the position of the marking line. When the seismometer is placed on the horizontal portion 31, the limit block 7 slides and fits into the wire groove 313, and the direction of the seismometer body 4 can be ensured to be accurate. In order to reduce the collision of the limit block 7 when not installed, the limit block 7 is rotatably connected to the protective cover 6. During conventional transportation, the limit block 7 is rotated so that the limit block 7 no longer protrudes from the lower end of the protective cover 6, so that the seismometer can be stably placed on a horizontal surface such as a freight truck or other means of transportation.

[0057] In order to make the seismometer body 4 stably fall into the limiting groove 311, specifically, the placement base 5 includes two symmetrically arranged support plates 51, and the support plates 51 are slidably connected to the protective cover 6 in the horizontal direction and fixed to the protective cover 6 in the vertical direction. Specifically, a dovetail block is provided on the support plate 51, and a dovetail groove is provided on the protective cover 6. Through the cooperation of the dovetail groove and the dovetail groove, the support plate 51 is slidably connected to the protective cover 6 in the horizontal direction. When the two support plates 51 abut against each other, the support plate 51 closes the lower end of the protective cover 6. The upper side of the support plate 51 includes a support surface for supporting the seismometer body 4 and a guide surface 511 for guiding the seismometer body 4 to slide downward, and the support surface is supported by the end of the guide surface 511 away from the other support plate 51; when the two support plates 51 slide outward, the seismometer body 4 falls on the guide surface and moves downward along the guide surface.

[0058] The protective cover 6 is provided with a driving mechanism 52 for driving the two support plates 51 to slide outward or inward synchronously. The driving mechanism 52 includes a mounting block 521 that is vertically positioned and slidably connected to the main body 61, and a transmission rod 522 that is rotatably connected to the mounting block 521. Two transmission rods 522 are provided, and one transmission rod 522 corresponds to one support plate 51. One end of the transmission rod 522 is rotatably connected to the mounting block 521, and the other end is rotatably connected to the support plate 51.

[0059] Specifically, an adjustment groove 611 is provided on the main body 61 in the vertical direction, and fixing screw holes 612 are provided at both ends of the bottom wall of the adjustment groove 611. The mounting block 521 is slidably connected to the adjustment groove 611, and an adjustment screw 523 is threadedly connected to the mounting block 521. When the adjustment screw 523 is threadedly connected to the fixing screw hole 612, the mounting block 521 is fixed relative to the main body 61, and when the adjustment screw 523 is not embedded in the fixing screw hole 612, the mounting block 521 is slidably connected to the adjustment groove 611. During operation, the adjustment screw 523 is screwed out of the fixing screw hole 612, and then the mounting block 521 is slid. At this time, the transmission rod 522 rotates, thereby driving the support plate 51 to slide relative to the protective cover 6, thereby realizing the opening of the lower end of the protective cover 6.

[0060] To prevent the lower end of the protective cover 6 from being opened due to accidental touch, when the control valve 633 is closed, the driving mechanism 52 is locked. Specifically, a limiting rod 524 is provided on the mounting block 521. When the control valve 633 is in the closed state, the valve stem of the control valve 633 is located below the limiting rod 524, so that the mounting block 521 cannot slide down, and the support plate 51 cannot be opened.

[0061] Embodiment III:

[0062] Please refer to Figure 8 , the difference between Embodiment III and Embodiment I is that a wire passing hole for the circuit of the seismometer body 4 is formed in one of the blocking pieces 621. When the heat insulation part 63 is inflated and expanded, the heat insulation part 63 fills the through hole formed by the blocking piece 621, thereby locking the blocking piece 621, so that when the heat insulation part 63 is in the inflated and expanded state, the blocking piece 621 cannot be turned downwards, reducing the occurrence of damage to the seismometer body 4 caused by accidental downward turning of the blocking piece 621 during transportation.

[0063] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A mobile observation device for seismic observation, comprising a mobile network center (1) and mobile observation stations (2). The mobile network center (1) includes an energy supply device, a control device, and a communication device. The mobile observation stations (2) include pier blocks (3), seismometers, and data collectors, characterized in that: The seismometer comprises a seismometer body (4), a placement base (5) and a protective cover (6), wherein the protective cover (6) is mounted on the placement base (5), the seismometer body (4) is mounted on the placement base (5) and is located in the protective cover (6), the protective cover (6) comprises a main body (61) with an opening at the upper end, an upper stop (62) for closing the upper end of the main body (61), and a heat insulation part (63) for heat insulation, the upper stop (62) comprises a plurality of blocking sheets (621), the blocking sheets (621) are rotatably connected to the upper end of the main body (61); when adjacent blocking sheets (621) abut against each other, the blocking sheets (621) close the upper end of the main body (61) and form a through hole for the circuit of the seismometer body (4) to pass through; when adjacent blocking sheets (621) rotate outward and separate from each other, the main body (61) is opened; the heat insulation part (63) comprises a plurality of blocking sheets (621) attached to the inside of the main body (61); The invention relates to a fixed part (631) arranged on the wall and a movable part (632) attached to the blocking sheet (621), wherein the heat insulating part (63) is hollow and elastic; when the blocking sheet (621) closes the upper end of the main body (61), the heat insulating part (63) is pressed against the seismometer body (4); when the blocking sheet (621) opens the upper end of the main body (61), a gap exists between the heat insulating part (63) and the seismometer body (4); the heat insulating part (63) is elastic and elastic; when the blocking sheet (621) closes the upper end of the main body (61), the heat insulating part (63) is pressed against the seismometer body (4); when the blocking sheet (621) opens the upper end of the main body (61), a gap exists between the heat insulating part (63) and the seismometer body (4); The part (63) is made of an air bag, the inner cavities of the fixed part (631) and the movable part (632) are connected and the outer walls are fixed to each other, and the heat insulating part (63) is provided with a control valve (633) for inflating and deflating the heat insulating part (63); when the movable part (632) is inflated, it closes the through hole and presses against the line of the seismometer body (4); when the blocking piece (621) is opened, the upper end of the seismometer body (4) is exposed outside the main body (61).

2. The mobile observation device for seismic observation according to claim 1, wherein: The lower end of the protective cover (6) is open, and the placement base (5) is slidably connected to the lower end of the protective cover (6) and is used to close the lower end of the protective cover (6); when the seismometer is placed on the pendulum pier (3), the placement base (5) is slid to open the lower end opening of the protective cover (6), and the seismometer body (4) falls on the pendulum pier (3) and is arranged horizontally.

3. The mobile observation device for seismic observation according to claim 2, wherein: The placement base (5) comprises two symmetrically arranged support plates (51), the support plates (51) are slidably connected to the protective cover (6) in the horizontal direction and are fixed to the protective cover (6) in the vertical direction, and when the two support plates (51) abut against each other, the support plates (51) close the lower end of the protective cover (6); the upper side of the support plate (51) comprises a support surface for supporting the seismometer body (4) and a guide surface (511) for guiding the seismometer body (4) to slide downward, and the support surface is supported by one end of the guide surface (511) away from the other support plate (51); when the two support plates (51) slide outward, the seismometer body (4) falls on the guide surface and moves downward along the guide surface.

4. The mobile observation device for seismic observation according to claim 3, characterized in that: A driving mechanism (52) for driving the two support plates (51) to slide outwards or inwards synchronously is provided on the protective cover (6).

5. The mobile observation device for seismic observation according to claim 4, wherein: The driving mechanism (52) includes a mounting block (521) positioned and slidably connected to the main body portion (61) in the vertical direction, and a transmission rod (522) rotatably connected to the mounting block (521). There are two transmission rods (522), and one transmission rod (522) corresponds to one support plate (51). One end of the transmission rod (522) is rotatably connected to the mounting block (521), and the other end is rotatably connected to the support plate (51).

6. The mobile observation device for seismic observation according to claim 5, characterized in that: When the control valve (633) is closed, the driving mechanism (52) is locked.

7. The mobile observation device for seismic observation according to claim 1, wherein: The pendulum pier (3) includes a mounting portion (32), a horizontal portion (31) rotatably and universally mounted above the mounting portion (32), and a leveling assembly for adjusting the horizontal portion (31) to be horizontal. A pointing line and a spirit level are provided on the horizontal portion (31).

8. The mobile observation device for seismic observation according to claim 7, characterized in that: The leveling assembly includes at least three leveling members (34) evenly distributed on the mounting portion (32). The leveling member (34) includes an adjusting block (341) slidably connected to the mounting portion (32) in the radial direction of the horizontal portion (31) and an adjusting force applying member (342) for driving the adjusting block (341) to move relative to the mounting portion (32). An adjusting inclined surface (3411) is provided on the adjusting block (341), and the adjusting inclined surface (3411) supports the lower end surface of the horizontal portion (31).

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