Earthquake protection device for cultural relic display case based on strong earthquake monitoring

Abstract

The application discloses a kind of relics showcase earthquake protection device based on strong earthquake monitoring, including left and right extension's rectangular cabinet, and the inner wall of cabinet is embedded with anti-seismic protection plate, and the top of cabinet is open and is provided with display board, and the left and right ends of cabinet are provided with support vertical plate, and the upper half of two support vertical plates is provided with semicircular guide slide rail opening upward, and the upper middle part of left end support vertical plate is vertically provided with electric telescopic rod, and the inside of cabinet is symmetrically provided with two anti-seismic protection covers;When electric telescopic rod is extended to stroke end downwards, display board is moved into the bottom of cabinet, and two anti-seismic protection covers are overturned to the top of cabinet and spliced together along guide slide rail upwards.The application is high in monitoring accuracy, comprehensive in protection, and safe and reliable.

Description

Technical Field

[0001] This invention relates to an earthquake protection device for cultural relic display cases based on strong earthquake monitoring, specifically to an intelligent display case device for the protection of cultural relics under earthquake disasters in places such as museums and cultural relic exhibition halls. Background Technology

[0002] Currently, most existing artifact display cases only have display and basic anti-theft functions, and their protection measures against earthquake disasters are significantly inadequate: some display cases use fixed earthquake-resistant structures (such as shock-absorbing pads), but they cannot cope with artifacts being tilted or damaged by collisions caused by medium to high intensity earthquakes; a few intelligent protective display cases lack accurate earthquake monitoring triggering mechanisms, resulting in false triggering or triggering delays; there are also devices that use suspended vibration-damping structures, but their structures are complex, costly, and unsuitable for fragile or heavy artifacts. According to the standard "DB_T 89-2022 Seismic Network Operation Specification for Strong Motion Observation", the trigger threshold of the strong motion accelerometer can be adjusted according to environmental vibration, which provides a technical basis for the accurate triggering of earthquake monitoring. However, there is currently no technical solution to combine the standard parameters with the active protection structure of cultural relic display cases, which means that cultural relics cannot be quickly and effectively protected in all aspects when a strong earthquake occurs. Summary of the Invention

[0003] To address the above-mentioned technical shortcomings, this invention provides an earthquake protection device for cultural relic display cases based on strong earthquake monitoring, which offers high monitoring accuracy, comprehensive protection, and is safe and reliable.

[0004] This invention is achieved through the following measures: An earthquake protection device for a cultural relic display case based on strong earthquake monitoring includes a rectangular cabinet extending horizontally. An earthquake-resistant protective plate is embedded in the inner wall of the cabinet. The top of the cabinet is open and features a horizontally extending, vertically movable, strip-shaped display panel. Flip-up side panels, connected to the cabinet and capable of only upward rotation, are located on both the front and rear sides of the display panel. Supporting vertical plates, spaced apart from the ends of the display panel, are located at both ends of the cabinet. Each of the two supporting vertical plates has an upward-opening semi-circular guide rail. An electric telescopic rod is vertically mounted above the center of the left-end supporting vertical plate. Two horizontally extending earthquake-resistant protective covers, which can be joined to form a semi-circular cross-section, are symmetrically arranged inside the cabinet. The left end of the display panel... A connecting rod extends to the left from the middle, and the end of the connecting rod is connected to an electric telescopic rod. Two support rods are rotatably connected to the connecting rod, and the ends of the two support rods are rotatably connected to the bottom of two earthquake-resistant protective covers. Guide rods extend from both the left and right ends of the two earthquake-resistant protective covers and slide into the bottom of the guide rail. A strong earthquake meter is installed at the bottom of the cabinet. The strong earthquake meter and the electric telescopic rod are connected by a controller for controlling the electric telescopic rod to extend downward when an earthquake signal is received from the strong earthquake meter. When the electric telescopic rod extends downward to the end of its stroke, the display panel moves downward into the bottom of the cabinet, and the two earthquake-resistant protective covers flip upward along the guide rail to the top of the cabinet and are spliced ​​together.

[0005] The aforementioned flip-up side panel is connected to the cabinet body via hinges. Several triangular support plates extending forward and backward are connected to the bottom of the flip-up side panel, and one straight edge of the support plate rests against the side wall of the cabinet body.

[0006] An emergency power supply is installed inside the cabinet, and the emergency power supply is electrically connected to the electric telescopic rod, controller, and strong earthquake meter.

[0007] The cabinet is equipped with a remote alarm system, and the remote alarm device is connected to the controller via a signal connection.

[0008] The beneficial effects of this invention are: 1. Monitoring accuracy: By adopting strong earthquake monitoring parameter settings that conform to industry standards, false triggering caused by environmental vibrations is effectively avoided, while ensuring rapid acquisition of earthquake signals. The trigger response time is ≤0.5S, which solves the problem of inaccurate triggering of existing devices.

[0009] 2. Comprehensive protection: Through the coordinated action of "lowering the display panel and flipping the seismic protective cover", a closed protective space is formed, which not only prevents the cultural relics from tipping over, but also prevents collisions with external objects. Compared with a single vibration reduction structure, the protection range is more comprehensive.

[0010] 3. Wide applicability: The simple structural design can be adapted to cultural relics of different sizes and weights, especially for fragile and valuable cultural relics. Moreover, the installation cost is lower than that of suspended vibration damping devices, which facilitates the transformation and upgrading of existing display cases.

[0011] 4. High reliability: Equipped with an emergency power supply and a dual transmission protection structure, it ensures that the protective action can still be completed when the mains power is interrupted or a single transmission mechanism fails, thereby improving the environmental adaptability and reliability of the device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention in its protective state during an earthquake; Figure 4 This is a partial cross-sectional structural diagram of the cabinet body of the present invention.

[0013] The components include: 1. Cabinet, 2. Display panel, 3. Flip-up side panel, 4. Connecting rod, 5. Electric telescopic rod, 6. Guide rail, 7. Supporting vertical plate, 8. Vibration meter, 9. Support rod, 10. Seismic protective cover, 11. Guide rod, 12. Support plate. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings: To address the shortcomings of existing technologies, such as insufficient earthquake protection capabilities, inaccurate triggering, and incomplete protection in artifact display cases, this invention provides an intelligent protection device based on strong earthquake monitoring. By accurately monitoring earthquake signals and rapidly linking protective structures, it achieves proactive protection of artifacts during earthquakes, reducing the risk of damage. Figures 1-4 As shown, the present invention is specifically as follows: An earthquake protection device for a cultural relic display case based on strong earthquake monitoring includes a rectangular cabinet 1 extending horizontally. An earthquake-resistant protective plate is embedded in the inner wall of the cabinet 1. The top of the cabinet 1 is open and features a horizontally extending, vertically movable, strip-shaped display panel 2. The display panel 2 has rotating side panels 3 connected to the cabinet 1 on both the front and rear sides, which can only be rotated upwards. Supporting vertical plates 7 are spaced apart from the ends of the display panels 2 at both ends of the cabinet 1. Each of the two supporting vertical plates 7 has an upward-opening semi-circular guide rail 6. An electric telescopic rod 5 is vertically installed above the center of the left supporting vertical plate 7. Two horizontally extending earthquake-resistant protective covers 10, which can be joined to form a semi-circular cross-section, are symmetrically arranged inside the cabinet 1. The left end of the display panel 2 extends to the left... A connecting rod 4 extends from the cabinet 1, with its end connected to an electric telescopic rod 5. Two support rods 9 are rotatably connected to the connecting rod 4, and the ends of the two support rods 9 are rotatably connected to the bottom of two earthquake-resistant protective covers 10. Guide rods 11 extend from both ends of the two earthquake-resistant protective covers 10 and slide into the bottom of the guide rail 6. A strong seismograph 8 is installed at the bottom of the cabinet 1. The strong seismograph 8 and the electric telescopic rod 5 are connected by a controller to control the electric telescopic rod 5 to extend downward when an earthquake signal is received from the strong seismograph 8. When the electric telescopic rod 5 extends downward to the end of its stroke, the display panel 2 moves downward into the bottom of the cabinet 1, and the two earthquake-resistant protective covers 10 flip upward along the guide rail 6 to the top of the cabinet 1 and are spliced ​​together. The edge of the flip-up side panel 3 is connected to the cabinet 1 by a hinge. Several triangular support plates 12 extending forward and backward are connected to the bottom of the flip-up side panel 3, and one straight edge of the support plate 12 abuts against the side wall of the cabinet 1. An emergency power supply is installed inside cabinet 1, which is electrically connected to the electric telescopic pole 5, the controller, and the strong vibration meter 8. A remote alarm system is installed inside cabinet 1, and the remote alarm device is connected to the controller via a signal connection.

[0015] A strong-motion accelerometer is used as the core monitoring element and installed on the inside top of display case 1 to ensure that the monitoring data can accurately reflect the seismic vibration at the location of the display case. Parameter settings: The triggering method adopts threshold triggering, with the default trigger threshold set to 0.02m / S². When the root mean square value of the background vibration acceleration is less than 0.0001g, the threshold is automatically reduced to 0.01m / S² (g=9.80665m / S²). The sampling rate is set to 200SPS (when storing seismic events), with a recording time of 30s before the event and 30s after the event to ensure complete capture of the seismic vibration process. Signal processing: The strong earthquake monitoring module collects acceleration data in the X, Y, and Z directions in real time. When the peak acceleration in any direction reaches the trigger threshold, or when an earthquake of magnitude 4 or above is detected, a trigger signal is immediately sent to the linkage execution module. The controller is connected to the strong earthquake monitoring module via wired communication. Upon receiving a trigger signal, it initiates the linkage control program. The lifting transmission system and the 10-stage tilting transmission system of the earthquake-resistant protective cover ensure that the two actions are executed synchronously, with a response time of ≤0.5S. The emergency power supply uses a lithium battery pack with a capacity of ≥12V / 10Ah, which can still support the completion of protective actions when the mains power is interrupted, ensuring the effectiveness of protection in extreme situations. The display panel 2 for placing the cultural relics is made of lightweight, high-strength alloy material (6061 aluminum alloy). Guide rails 6 are installed on both sides of the display panel 2 to ensure smooth and stable lifting without deviation. A 5-8mm thick silicone shock-absorbing layer is pasted on the inner wall of the cabinet 1 to reduce the impact during the descent of the display panel 2. The shock-resistant protective cover 10 is made of curved double-layered laminated glass. In its initial state, the shock-resistant protective cover 10 is stored in the storage slot inside the cabinet 1. As the electric telescopic rod 5 lowers the display panel 2, it also rotates the shock-resistant protective cover 10 upwards by 90°, flipping the rotating side panel 3 upwards. At the top, the edge of the shock-resistant protective cover 10 is secured to the rotating side panel 3, forming a closed protective space that provides comprehensive protection for the cultural relics from both above and below. The support plate 12 rests against the side wall of the cabinet 1 to prevent the rotating side panel 3 from flipping downwards.

[0016] Device assembly: The strong vibration meter 8 (model: QZ-300) is fixed to the bottom inner side of the display cabinet 1, the controller (model: STM32F103) is installed in the side interlayer of the cabinet 1, and the drive motor (model: 57HS22) is fixed to the bottom of the cabinet 1; a 7mm thick silicone shock-absorbing layer is pasted on the inner wall of the cabinet 1; the anti-vibration protective cover 10 is made of curved double-layer laminated glass and is installed in the storage slot inside the cabinet 1. Parameter adjustment: Based on the background vibration of the environment where the display case is located, the strong vibration monitoring threshold is set through the controller: if the root mean square value of the background vibration acceleration is ≥0.0001g, the trigger threshold is set to 0.02m / S²; if the root mean square value of the background vibration acceleration is <0.0001g, the threshold is reduced to 0.01m / S²; the sampling rate is set to 200SPS, and the recording time before and after the event is 30S. Workflow: Standby mode: The strong vibration meter 8 collects vibration data in real time, the display board 2 is in a horizontal display position, and the earthquake-resistant protective cover 10 is stored in the cabinet 1; Trigger status: When the peak acceleration in any direction is detected to reach a set threshold, the controller immediately... Start the electric telescopic rod 5. The electric telescopic rod 5 drives the display board 2 to descend into the cabinet 1 at a uniform speed (descending speed 5cm / S). At the same time, it drives the anti-vibration protective cover 10 to rotate upward 90°, closing the top opening of the cabinet 1 and forming a closed protection. Implementation effect verification Simulated earthquake test: The shaking table was used to simulate earthquakes of magnitude 4, 5 and 6. The device was able to trigger the protective action within 0.3-0.5 seconds. The display panel 2 descended smoothly, the earthquake-resistant protective cover 10 closed tightly, and the ceramic artifacts and bronzes placed on the display panel 2 did not tip over or suffer collision damage. False trigger test: Under normal traffic conditions and equipment operation in the exhibition hall, the device did not trigger falsely even once, with a trigger accuracy rate of 100%. Emergency power supply test: After the mains power is cut off, the emergency power supply can support 3 complete protection-reset cycles to meet the needs of use under extreme conditions. The above description is only a preferred embodiment of this patent. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this patent, and these improvements and substitutions should also be considered within the scope of protection of this patent.

Claims

1. A seismic protection device for cultural relic display cases based on strong earthquake monitoring, characterized in that: The system includes a rectangular cabinet extending horizontally, with earthquake-resistant protective panels embedded in the inner walls. The top of the cabinet is open and features a long, horizontally extending, vertically movable display panel. Both the front and rear sides of the display panel have rotating side panels connected to the cabinet and capable of only upward rotation. Supporting vertical plates are spaced apart from the ends of the display panel at both ends of the cabinet. Each of the two supporting vertical plates has an upward-opening semi-circular guide rail. An electric telescopic rod is vertically mounted above the center of the left-hand supporting vertical plate. Inside the cabinet, two horizontally extending earthquake-resistant protective covers that can be joined to form a semi-circular cross-section are symmetrically arranged. A connecting rod extends to the left from the center of the left end of the display panel. The connecting rod is connected to an electric telescopic rod at its end. Two support rods are rotatably connected to the connecting rod. The ends of the two support rods are rotatably connected to the bottom of two earthquake-resistant protective covers, respectively. Guide rods extend from both the left and right ends of the two earthquake-resistant protective covers and slide into the bottom of the guide rail. A strong earthquake meter is installed at the bottom of the cabinet. The strong earthquake meter and the electric telescopic rod are connected by a controller for controlling the electric telescopic rod to extend downward when an earthquake signal is received from the strong earthquake meter. When the electric telescopic rod extends downward to the end of its stroke, the display panel moves downward into the bottom of the cabinet. The two earthquake-resistant protective covers flip upward along the guide rail to the top of the cabinet and are spliced ​​together.

2. The earthquake protection device for cultural relic display cases based on strong earthquake monitoring according to claim 1, characterized in that: The edge of the flip-up side panel is connected to the cabinet body by a hinge. Several triangular support plates extending forward and backward are connected to the bottom of the flip-up side panel, and one straight edge of the support plate rests against the side wall of the cabinet body.

3. The earthquake protection device for cultural relic display cases based on strong earthquake monitoring according to claim 1, characterized in that: An emergency power supply is installed inside the cabinet, and the emergency power supply is electrically connected to the electric telescopic rod, controller, and strong earthquake meter.

4. The earthquake protection device for cultural relic display cases based on strong earthquake monitoring according to claim 1, characterized in that: The cabinet is equipped with a remote alarm system, and the remote alarm device is connected to the controller via signal.

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