An electromagnetically triggered modular seismic isolation base for earthquake protection of cultural relics

Abstract

This utility model discloses an electromagnetically triggered modular seismic isolation base for earthquake protection of cultural relics. It includes: a base with a mounting panel connected above it, the mounting panel supporting the cultural relics and movable on the base along two mutually perpendicular directions (first and second); an adjustment mechanism for constraining the movement direction of the mounting panel; an electromagnetic component for locking or releasing the constraint between the mounting panel and the base; and a control unit electrically connected to the electromagnetic component, which acquires and determines the acceleration of the current environmental vibration of the seismic isolation base, and adjusts the operating conditions of the electromagnetic component based on the determination result, so that the mounting panel and the base are either locked or unconstrained. This invention effectively improves the problem that when a base for placing cultural relics consumes vibration energy solely through deformation or friction during an earthquake, the buffering is inadequate, failing to provide adequate protection for the relics.

Description

Technical Field

[0001] This application relates to the field of cultural relic protection technology, and in particular to an electromagnetic trigger modular seismic isolation base for earthquake protection of cultural relics. Background Technology

[0002] Cultural relics, as the core carriers of my country's history and culture, are an important component of cultural security. my country is a country prone to earthquakes, and the severe vibrations caused by earthquakes pose a significant risk of damage to museum collections. Therefore, developing efficient earthquake-resistant technologies for museum collections is of irreplaceable practical significance for ensuring the integrity of cultural relics and for the transmission of historical culture.

[0003] Currently, existing technologies for earthquake protection of cultural relics mainly rely on traditional seismic isolation bearings. Their core design principle is to dissipate vibrational energy through structural deformation (such as deformation of elastic elements) or friction, thereby achieving seismic isolation protection for the relics during earthquakes. However, these traditional seismic isolation bearings lack a rigid locking mechanism in non-earthquake conditions, allowing a certain degree of free displacement. This structural characteristic means that under everyday environmental loads (such as vibrations from surrounding transportation and disturbances from people's activities inside buildings), they not only fail to suppress vibration transmission but may even amplify the low-frequency micro-vibrations transmitted to the cultural relics.

[0004] Because museum collections (especially ceramics, murals, and bronzes) are extremely sensitive to low-frequency micro-vibrations, unnecessary shaking in non-earthquake conditions can directly cause damage to these artifacts.

[0005] For example, ceramic artifacts are prone to developing micro-cracks that gradually expand, mural artifacts are prone to surface pigment peeling, and bronze artifacts are prone to accelerated corrosion or deformation due to structural fatigue. Over a long period of time, this defect of traditional seismic isolation bearings will significantly accelerate the deterioration of cultural relics, severely shorten their lifespan, and become the most significant technical problem restricting the further application of existing seismic isolation technologies for cultural relics. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide an electromagnetic triggering modular vibration isolation base for earthquake protection of cultural relics, which can solve the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] On the one hand, an electromagnetic triggering modular seismic isolation base for earthquake protection of cultural relics is provided, which includes:

[0009] A base, with a mounting panel connected above it, the mounting panel being used to support cultural relics, and the mounting panel being movable along two mutually perpendicular directions, a first direction and a second direction.

[0010] An adjustment mechanism, connected between the base and the mounting panel, is used to constrain the movement direction of the mounting panel;

[0011] An electromagnetic component, located between the base and the mounting panel, is used to lock or release the constraint between the mounting panel and the base; and

[0012] The control unit is electrically connected to the electromagnetic component, and the control unit can obtain and determine the acceleration of the current environmental vibration of the vibration isolation base, and adjust the working condition of the electromagnetic component based on the determination result, so that the mounting panel and the base are in a locked constraint state or a released constraint state.

[0013] Preferably, at least one first linear guide rail is connected to the base along the first direction, and a first slider is slidably connected to the first linear guide rail.

[0014] Preferably, at least one second linear guide rail is connected to the side of the mounting panel near the base, and a second slider is slidably connected to the second linear guide rail.

[0015] Preferably, the adjusting mechanism is connected between the first slider and the second slider, and includes:

[0016] A connecting plate is fixedly connected to the first slider on one side and to the second slider on the other side. Four of the first slider and four of the second slider are provided.

[0017] A spring is connected to the connecting plate. The spring includes two sets located on both sides of the connecting plate. The other end of the spring on the side closer to the base is fixedly connected to the base, and the other end of the spring on the side closer to the mounting panel is fixedly connected to the mounting panel.

[0018] The spring is used to provide self-resetting capability.

[0019] Preferably, it further includes a damping mechanism for increasing the frictional force when the mounting panel moves in the first direction and the second direction, the damping mechanism including a first damping unit and a second damping unit;

[0020] The first damping unit is disposed between the mounting panel and the connecting plate, and the second damping unit is disposed between the base and the connecting plate.

[0021] Preferably, the first damping unit and the second damping unit have the same structure, comprising:

[0022] A T-shaped steel plate is fixedly connected to the base and the mounting panel. The T-shaped steel plate includes a friction panel. The friction panel on the side closer to the base is parallel to the first linear guide rail, and the friction panel on the side closer to the mounting panel is parallel to the second linear guide rail.

[0023] Friction pads are disposed on both sides of the connecting plate and are attached to the friction panel.

[0024] Preferably, it further includes a connecting structure for connecting the friction pad and the connecting plate; the connecting structure includes:

[0025] Supports are connected to the connecting plate and located on both sides of the friction plate;

[0026] The support is threaded with a high-strength bolt, which is used to adjust the friction force between the friction plate and the friction panel of the T-shaped steel plate.

[0027] Preferably, the electromagnetic component includes an electromagnet and an iron plate, the electromagnet being fixedly connected to the mounting panel, and the iron plate being fixedly connected to the base;

[0028] When the electromagnet generates magnetic force, it can be used to attract the iron plate so that the mounting panel and the base are relatively fixed together.

[0029] Preferably, the control unit includes:

[0030] The signal acquisition unit is used to acquire the acceleration of current environmental vibrations;

[0031] The data processing unit is used to perform DC removal processing or baseline correction processing on the acceleration signal, and adopts a preset trigger threshold judgment method, which includes threshold triggering, STA / LTA threshold triggering or energy threshold triggering.

[0032] In the actual judgment process, the processed acceleration is compared with a preset first threshold. If the acceleration is greater than the first threshold, a release constraint signal for the electromagnetic unit is generated; if the acceleration is not greater than the first threshold, a lock constraint signal for the electromagnetic unit is generated.

[0033] The execution unit adjusts the operating conditions of the electromagnetic unit based on the release constraint signal or the lock constraint signal.

[0034] Preferably, during the acquisition process, the acceleration signal can be acquired in real time using a microcontroller, using an acceleration sensor with an integrated ADC within the microcontroller or a combination of an external independent ADC and an external acceleration sensor.

[0035] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0036] 1. The signal acquisition unit achieves high-frequency, high-precision acceleration sampling through a microcontroller and ADC sensor. The data processing unit filters out daily interference through DC removal and baseline correction, responding only to dynamic vibrations from real earthquakes or accidental collisions. Combined with multi-mode judgment (threshold trigger / STA / LTA trigger / energy threshold trigger), it can accurately distinguish between minor daily vibrations and strong earthquake vibrations, avoiding the "false locking" or "missed unlocking" caused by signal interference in traditional base systems.

[0037] 2. Upon receiving the unlocking command from the control unit, the electromagnetic component immediately cuts off the current, the magnetic force disappears instantly, and the mounting panel can immediately slide along the guide rail. During normal operation or after an earthquake, when the acceleration drops below the threshold, the current is turned on, and the component quickly engages and locks.

[0038] 3. The base is equipped with a linear guide rail in the first direction, and the mounting panel is equipped with a linear guide rail in the second direction. A connecting plate connects the two-way sliders, forcing the mounting panel to slide linearly only within the horizontal plane formed by the "first direction (e.g., left / right) + second direction (e.g., front / back)". Simultaneously, by aligning the friction plates parallel to the corresponding guide rail directions, a T-shaped steel plate constrains the sliding trajectory, and high-strength bolts adjust the contact pressure between the friction plates and the friction panel. This ensures that during an earthquake, if the mounting panel slides rapidly in a certain direction, the corresponding damping unit can directly apply a reverse frictional force to slow the sliding speed and prevent it from sliding out of the base area due to inertia. Attached Figure Description

[0039] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0040] Figure 1 This is a front view of the internal structure of the electromagnetic triggering modular seismic isolation base for earthquake protection of cultural relics according to an embodiment of this application;

[0041] Figure 2 This is a side view of the internal structure of an electromagnetic triggering modular seismic isolation base for earthquake protection of cultural relics according to an embodiment of this application;

[0042] Figure 3 This is a top view of the internal structure of an electromagnetic triggering modular seismic isolation base for earthquake protection of cultural relics, as described in an embodiment of this application.

[0043] Figure 4 This is a schematic diagram of an electromagnetic trigger modular isolation base control unit for earthquake protection of cultural relics according to an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the working process of the electromagnetic triggering modular isolation base control module for earthquake protection of cultural relics according to an embodiment of this application.

[0045] In the picture:

[0046] DX, first direction; DY, second direction;

[0047] 100. Base; 110. First linear guide rail; 111. First slider; 200. Mounting panel; 210. Second linear guide rail; 211. Second slider; 300. Adjustment mechanism; 310. Connecting plate; 320. Spring; 330. Damping mechanism; 301. First damping unit; 302. Second damping unit; 331. Friction plate; 332. T-shaped steel plate; 340. Connecting structure; 341. Support; 342. High-strength bolt; 400. Electromagnetic assembly; 410. Electromagnet; 420. Iron plate; 500. Control unit; 510. Signal acquisition unit; 520. Data processing unit; 530. Execution unit. Detailed Implementation

[0048] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] like Figures 1 to 5As shown, this disclosure provides an electromagnetic triggering modular seismic isolation base for earthquake protection of cultural relics. It can be used to improve the problem that when the base on which cultural relics are placed consumes vibration energy through its own deformation or friction during an earthquake, the buffering is not good and the cultural relics cannot be well protected.

[0052] Specifically, the electromagnetic trigger modular seismic isolation base for earthquake protection of cultural relics includes a base 100, an adjustment mechanism 300, an electromagnetic component 400, and a control unit 500. A mounting panel 200 is connected above the base 100, and the mounting panel 200 is used to support the cultural relics. The mounting panel 200 can move on the base 100 along mutually perpendicular first directions DX and second directions DY. Simultaneously, the adjustment mechanism 300 is connected between the base 100 and the mounting panel 200, and is used to constrain the direction of movement of the mounting panel 200 on the base 100, and to ensure stable movement of the mounting panel 200 during movement. It can be understood that because the mounting panel 200 can move on the base 100 along mutually perpendicular first directions DX and second directions DY, through the synergistic effect of the first direction DX and the second direction DY, the mounting panel 200 can move arbitrarily relative to the base 100 on the plane constructed by the first direction DX and the second direction DY.

[0053] Furthermore, the electromagnetic component 400 is located between the base 100 and the mounting panel 200, and is used to lock or release the constraint between the mounting panel 200 and the base 100. Understandably, when the mounting panel 200 and the base 100 are locked, they are in a relatively fixed state. And when the constraint between the mounting panel 200 and the base 100 is released, the mounting panel 200 can slide relative to the base 100.

[0054] Furthermore, the control component is electrically connected to the electromagnetic component 400, and the control unit 500 can obtain the acceleration of the current environment of the vibration isolation base provided in this disclosure. After determining the acceleration, the operating conditions of the electromagnetic component 400 are adjusted based on the determination result, so that the mounting panel 200 and the base 100 are in a locked or unconstrained state.

[0055] Understandably, the control unit 500 can precisely control the switching of the operating conditions of the electromagnetic component 400 by acquiring and judging the acceleration of the environment in which the seismic isolation base is located in real time. Specifically, when no earthquake occurs, the electromagnetic component 400 keeps the mounting panel 200 and the base 100 locked and constrained, ensuring that the cultural relics are in a stable and fixed state during daily placement, and avoiding accidental displacement of the cultural relics due to the mobility of the base itself.

[0056] When an earthquake occurs, the electromagnetic component 400 quickly unlocks and switches to unconstrained mode, allowing the mounting panel 200 to slide relative to the base 100. This avoids the problem of insufficient protection caused by the inability of traditional fixed bases to buffer during earthquakes, and also solves the problem of excessive protection caused by the daily shaking of some passive seismic isolation bases.

[0057] The mounting panel 200 can move along two mutually perpendicular directions, DX and DY, covering the main directions of seismic vibration on the horizontal plane (such as front-back and left-right). Through bidirectional coordination, it ensures that the artifact can be unloaded by sliding in any horizontal vibration direction. The adjustment mechanism 300, on the one hand, constrains the movement direction of the mounting panel 200 to prevent it from colliding with the artifact due to disordered displacement; on the other hand, it ensures the stability of the movement process and avoids instantaneous impact problems caused by sliding jamming.

[0058] The electromagnetic component 400 is locked / unlocked by electrical signals. It can switch operating conditions instantly after the control unit 500 determines that an earthquake has occurred, avoiding the buffer delay caused by friction and deformation of the mechanical structure, and buying more time for the protection of cultural relics.

[0059] In one embodiment, at least one first linear guide rail 110, arranged along a first direction DX, is connected to the base 100, and a first slider 111 is slidably connected to the first linear guide rail 110. Additionally, at least one second linear guide rail 210, arranged along a second direction DY, is connected to the mounting panel 200 on the side near the base 100, and a second slider 211 is slidably connected to the second linear guide rail 210. Therefore, the first slider 111 and the second slider 211 can drive the connecting plate 310 to slide relative to the base 100 in two mutually perpendicular directions.

[0060] Furthermore, the adjustment mechanism 300 is connected between the first slider 111 and the second slider 211, so that the adjustment mechanism 300 can move along the first direction DX via the first slider 111 and move relative to the mounting panel 200 along the second direction DY.

[0061] Specifically, the adjusting mechanism 300 includes a connecting plate 310, with one side of the connecting plate 310 fixedly connected to a first slider 111 and the other side fixedly connected to a second slider 211. In one embodiment, to improve the stability of the connecting plate 310 during movement, two first linear guide rails 110 and two second linear guide rails 210 may be provided respectively, with two first sliders 111 slidably connected to a single first linear guide rail 110 and two second sliders 211 slidably connected to a single second linear guide rail 210. It should be noted that multiple springs 320 are also connected to the connecting plate 310, and these springs 320 are evenly distributed around the periphery of the connecting plate 310. Preferably, eight springs 320 are provided, divided into two groups and arranged on both sides of the connecting plate 310. At the same time, the connecting plate 310 adopts a rectangular structure, and the four springs 320 on one side of the connecting plate 310 are respectively located at the four corners of the connecting plate 310.

[0062] Furthermore, the other end of the spring 320 near the base 100 is fixedly connected to the base 100, and the other end of the spring 320 near the mounting panel 200 is fixedly connected to the mounting panel 200. The spring 320 is used to provide automatic reset capability. Specifically, when the mounting panel 200 shifts relative to the base 100, the spring 320 around the connecting plate 310 can pull the connecting plate 310 to reset the mounting panel 200.

[0063] Specifically, the first linear guide rail 110 is set along the first direction DX, and the second linear guide rail 210 is set along the second direction DY. Through the fixed connection between the slider and the connecting plate 310, the mounting panel 200 can only slide linearly within the horizontal plane formed by the first direction DX and the second direction DY, completely avoiding the oblique or rotational offset that may occur in traditional unrestrained sliding. For example, if a traditional seismic isolation structure relies solely on planar friction for sliding, during an earthquake, the artifact may deviate from the center of the base or collide with edge components due to the complex vibration direction; however, this design, through guide rail guidance, ensures that the sliding trajectory is always within a controllable range, eliminating such collision risks.

[0064] One side of the connecting plate 310 is fixed to the first slider 111 and can move along the first guide rail in the first direction DX; the other side is fixed to the second slider 211 and can move along the second guide rail in the second direction DY. Therefore, when the seismic vibration includes components in both the first direction DX and the second direction DY, the connecting plate 310 can drive the mounting panel 200 to slide synchronously in both directions, without the problem of "sliding in one direction and stuck in the other direction".

[0065] Eight sets of springs 320 are symmetrically distributed in two groups on both sides of the rectangular connecting plate 310, with four sets on each side located at the corners. This ensures that when an earthquake causes the mounting panel 200 to shift in any direction, the forces of the springs 320 on both sides are balanced and consistent, allowing the mounting panel 200 to smoothly return to its initial position without tilting or oscillating due to excessive force from one side of the springs 320.

[0066] In one embodiment, to improve the stability of the mounting panel 200 relative to the base 100 during movement and prevent it from slipping out of control due to excessive sliding, the electromagnetic trigger modular isolation base for cultural relic vibration protection provided in this disclosure further includes a damping mechanism 330, which is used to increase the frictional force of the mounting panel 200 when it moves in the first direction DX and the second direction DY.

[0067] Specifically, the damping mechanism 330 includes a first damping unit 301 and a second damping unit 302. The first damping unit 301 is disposed between the mounting panel 200 and the connecting plate 310, and the second damping unit 302 is disposed between the base 100 and the connecting plate 310. It should be noted that the first damping unit 301 and the second damping unit 302 have the same damping method, and a certain degree of structural similarity is permissible. However, this is not a limitation, and the specific design can be determined according to actual needs.

[0068] In this embodiment, the first damping unit 301 and the second damping unit 302 have the same structure. Both damping units include a friction plate 331 and a T-shaped steel plate 332.

[0069] T-shaped steel plate 332 is fixedly connected to base 100 and mounting panel 200. T-shaped steel plate 332 includes a friction panel. The friction panel on the side near base 100 is parallel to the first linear guide rail 110, and the friction panel on the side near mounting panel 200 is parallel to the second linear guide rail 210. Friction pads 331 are disposed on both sides of connecting plate 310 and are attached to the friction panel.

[0070] Furthermore, a connecting structure 340 is permitted on the connecting plate 310 for connecting the friction plate 331 and the connecting plate 310. The connecting structure 340 includes a support 341, which is attached to the connecting plate 310 and located on both sides of the friction plate 331. A high-strength bolt 342 is threaded onto the support 341, and the high-strength bolt 342 is used to adjust the friction force between the friction plate 331 and the friction panel of the T-shaped steel plate 332.

[0071] Understandably, the first damping unit 301 corresponds to the direction of the second linear guide rail 210, and the second damping unit 302 corresponds to the direction of the first linear guide rail 110, with the friction plates 331 parallel to both guide rail directions. This allows for the direct application of targeted frictional force to sliding in each direction, preventing control failure due to damping direction mismatch. For example, insufficient damping in one direction and excessive damping in another. For instance, during an earthquake, if the mounting panel 200 slides rapidly along the second direction DY, the friction plates 331 of the first damping unit 301 can directly generate reverse frictional force, slowing the sliding speed and preventing it from sliding out of the base range due to inertia and colliding with edge components.

[0072] The friction plate 331 is constrained by the T-shaped steel plate 332 and can only move along the sliding direction to fit the friction panel, ensuring that the friction force is always applied evenly on the sliding trajectory and that the damping is not uneven due to the offset of the friction plate 331.

[0073] In one embodiment, the electromagnetic component 400 includes an electromagnet 410 and an iron plate 420. The electromagnet 410 is fixedly connected to the mounting panel 200, and the iron plate 420 is fixedly connected to the base 100. When the electromagnet 410 generates magnetic force, it can be used to attract the iron plate 420, thereby fixing the mounting panel 200 and the base 100 relative to each other.

[0074] Specifically, the electromagnet 410 controls the generation and disappearance of magnetic force through electrical signals, eliminating the need for physical contact, friction, or deformation of mechanical parts. When the control unit 500 sends a "release constraint signal," the current is immediately cut off, the magnetic force disappears instantly, and the mounting panel 200 can immediately slide along the guide rail. When a "lock constraint signal" is sent, the current is turned on, generating magnetic force that quickly attracts the iron plate 420 for fixation. This magnetic attraction control design can unlock the artifact immediately after an earthquake, preventing impact damage to cultural relics caused by delayed protection.

[0075] Furthermore, the control unit 500 includes a signal acquisition unit 510, a data processing unit 520, and an execution unit 530. The signal acquisition unit 510 is used to acquire the acceleration of current environmental vibrations.

[0076] During the acceleration acquisition process, a microcontroller can be used to collect acceleration signals in real time. An acceleration sensor with an integrated ADC in the microcontroller can be selected, or a combination of an external independent ADC and an external acceleration sensor can be used.

[0077] The data processing unit 520 performs DC removal processing or baseline correction processing on the acceleration signal, and adopts a preset trigger threshold judgment method, including threshold triggering, STA / LTA threshold triggering, or energy threshold triggering. In the actual judgment process, the processed acceleration is compared with a preset first threshold. If the acceleration is greater than the first threshold, a release constraint signal for the electromagnetic unit is generated; if the acceleration is not greater than the first threshold, a lock constraint signal for the electromagnetic unit is generated. The execution unit 530 adjusts the operating conditions of the electromagnetic unit based on the release constraint signal or the lock constraint signal.

[0078] Specifically, the microcontroller can perform high-frequency real-time sampling of acceleration signals, accurately capturing the instantaneous surge in acceleration during an earthquake, avoiding "missing key vibration signals" due to excessively long sampling intervals, and ensuring that subsequent judgments are not delayed.

[0079] DC removal processing eliminates DC signal offsets caused by "long-term slight tilting" or "temperature drift" in everyday environments. For example, when a base experiences slight subsidence after prolonged placement, traditional acquisition methods might misinterpret this offset as a vibration signal. Simultaneously, baseline correction brings the vibration signal's baseline back to zero, ensuring that only "real dynamic vibrations" are recorded. This significantly reduces the probability of misidentification in everyday scenarios, such as earthquakes or accidental collisions.

[0080] Therefore, the control unit 500 collects daily vibrations (such as vibrations generated by people walking or air conditioning operation) in real time. After processing, if it is determined that the acceleration is less than or equal to the first threshold, the execution unit 530 will control the electromagnetic component 400 to maintain magnetic locking, so that the mounting panel 200 and the base 100 are relatively fixed. Compared with traditional passive vibration isolation, the daily placement of cultural relics is more stable, avoiding "displacement or collision of cultural relics caused by non-seismic factors".

[0081] Understandably, after the earthquake, once the vibration acceleration drops below the first threshold, the control unit 500 automatically sends a "lock command," the electromagnetic component 400 re-magnetically fixes itself, and the mounting panel 200 returns to its initial position, working in conjunction with the spring 320 to reset. This eliminates the need for manual locking or resetting, reducing the workload of museum maintenance and avoiding the aftershock risks associated with artifacts remaining in a movable state for extended periods after an earthquake.

[0082] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0083] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0084] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0085] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. An electromagnetic trigger module type seismic isolation base for protecting cultural relics from earthquakes, characterized by, include: A base (100) is provided with a mounting panel (200) connected above it. The mounting panel (200) is used to support cultural relics and can move on the base (100) along two mutually perpendicular directions: a first direction (DX) and a second direction (DY). An adjustment mechanism (300) is connected between the base (100) and the mounting panel (200) to constrain the movement direction of the mounting panel (200); An electromagnetic component (400) is located between the base (100) and the mounting panel (200) for locking or releasing the constraint between the mounting panel (200) and the base (100); and The control unit (500) is electrically connected to the electromagnetic component (400), and the control unit (500) can obtain and determine the acceleration of the vibration of the current environment of the vibration isolation base, and adjust the working condition of the electromagnetic component (400) based on the determination result, so that the mounting panel (200) and the base (100) are in a locked constraint state or a unlocked constraint state.

2. The electromagnetic trigger module type shock isolation base for shock isolation of cultural relics according to claim 1, characterized in that, At least one first linear guide rail (110) is connected to the base (100) along the first direction (DX), and a first slider (111) is slidably connected to the first linear guide rail (110).

3. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 2, characterized in that, At least one second linear guide rail (210) is connected to the mounting panel (200) on the side near the base (100), and a second slider (211) is slidably connected to the second linear guide rail (210).

4. The electromagnetic trigger module type shock isolation base for shock isolation of cultural relics according to claim 3, characterized in that, The adjusting mechanism (300) is connected between the first slider (111) and the second slider (211), and includes: A connecting plate (310) is fixedly connected to the first slider (111) on one side and to the second slider (211) on the other side. Four of the first slider (111) and four of the second slider (211) are provided. A spring (320) is connected to the connecting plate (310). The spring (320) includes two sets located on both sides of the connecting plate (310). The other end of the spring (320) on the side closer to the base (100) is fixedly connected to the base (100), and the other end of the spring (320) on the side closer to the mounting panel (200) is fixedly connected to the mounting panel (200). The spring (320) is used to provide self-resetting capability.

5. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 4, characterized in that, It also includes a damping mechanism (330) for increasing the frictional force of the mounting panel (200) when it moves in the first direction (DX) and the second direction (DY), the damping mechanism (330) including a first damping unit (301) and a second damping unit (302); The first damping unit (301) is disposed between the mounting panel (200) and the connecting plate (310), and the second damping unit (302) is disposed between the base (100) and the connecting plate (310).

6. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 5, characterized in that, The first damping unit (301) and the second damping unit (302) have the same structure, which includes: A T-shaped steel plate (332) is fixedly connected to the base (100) and the mounting panel (200). The T-shaped steel plate (332) includes a friction panel. The friction panel on the side closer to the base (100) is parallel to the first linear guide rail (110), and the friction panel on the side closer to the mounting panel (200) is parallel to the second linear guide rail (210). Friction plates (331) are disposed on both sides of the connecting plate (310) and are attached to the friction panel.

7. The electromagnetic triggering modular seismic isolation base for cultural relic earthquake protection according to claim 6, characterized in that, It also includes a connecting structure (340) for connecting the friction plate (331) and the connecting plate (310); the connecting structure (340) includes: Support (341) is connected to the connecting plate (310) and located on both sides of the friction plate (331); The support (341) is threaded with a high-strength bolt (342), which is used to adjust the friction force between the friction plate (331) and the friction panel of the T-shaped steel plate (332).

8. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 1, characterized in that, The electromagnetic component (400) includes an electromagnet (410) and an iron plate (420). The electromagnet (410) is fixedly connected to the mounting panel (200), and the iron plate (420) is fixedly connected to the base (100). When the electromagnet (410) generates magnetic force, it can be used to attract the iron plate (420) so that the mounting panel (200) and the base (100) are relatively fixed together.

9. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 1, characterized in that, The control unit (500) includes: The signal acquisition unit (510) is used to acquire the acceleration of the current environmental vibration; The data processing unit (520) is used to perform DC removal processing or baseline correction processing on the acceleration signal, and adopts a preset trigger threshold judgment method, which includes threshold triggering, STA / LTA threshold triggering or energy threshold triggering. In the actual judgment process, the processed acceleration is compared with a preset first threshold. If the acceleration is greater than the first threshold, a release constraint signal for the electromagnetic unit is generated; if the acceleration is not greater than the first threshold, a locking constraint signal for the electromagnetic unit is generated. The execution unit (530) adjusts the operating conditions of the electromagnetic unit based on the release constraint signal or the lock constraint signal.

10. The electromagnetic trigger module type seismic isolation base for earthquake protection of cultural relics according to claim 9, characterized in that, During the acquisition process, the acceleration signal can be acquired in real time using a microcontroller, using an acceleration sensor with an integrated ADC inside the microcontroller or a combination of an external independent ADC and an external acceleration sensor.

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