CN216249742U

CN216249742U - Earthquake characteristic difference contrast demonstration device

Info

Publication number: CN216249742U
Application number: CN202122752235.4U
Authority: CN
Inventors: 范涛; 关伟智; 吴雄伟
Original assignee: Wuhan Institute Of Seismologic Instrument Co ltd; Institute of Earthquake of China Earthquake Administration
Current assignee: Wuhan Institute Of Seismologic Instrument Co ltd; Institute of Earthquake of China Earthquake Administration
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-08
Anticipated expiration: 2031-11-11

Abstract

The utility model provides a device for comparing and demonstrating differences of earthquake characteristics, which comprises a display cabinet body and at least two vibration models, wherein each vibration model comprises a sphere, a connecting rod and a base which are fixedly connected from top to bottom in sequence; the top surface of the display cabinet body is provided with a groove, a guide rail is arranged in the groove, a display table top is arranged above the groove, the top surface of the display table top is fixedly connected with the base, the bottom surface of the display table top is provided with a vibration motor and at least two sliding blocks, the sliding blocks are positioned on two sides of the vibration motor, and the bottom surfaces of the sliding blocks are connected with the guide rail; the device has demonstrated the vibration reaction of different length connecting rods under the different frequency vibrations, and then demonstrates the destruction circumstances of building under the seismic oscillation of different frequencies among the actual conditions, to the audio-visual principle that has demonstrated the earthquake and has destroyed the building of people, still has simple and easy, low price, stable, automatic advantage simultaneously.

Description

Earthquake characteristic difference contrast demonstration device

Technical Field

The utility model belongs to the technical field of earthquake simulation vibration, and particularly relates to a device for comparing and demonstrating differences of earthquake features.

Background

Earthquakes are a natural phenomenon during which seismic waves are generated due to vibrations caused by the rapid release of energy from the earth's crust. The mutual extrusion and collision between the plates on the earth cause the dislocation and the fracture of the plate edges and the plate interiors, which is the main reason of the earthquake. When an earthquake occurs, infrasonic waves with the frequency of less than 20Hz are generated, and cannot be directly detected by human ears. Infrasonic waves are not easy to attenuate and absorbed by water and air, can resonate with internal organs of a human body, have strong injury to the human body and can cause death when being dangerous.

Although earthquake is not common in our lives, it will bring about a huge disaster once it comes. In order to enable more people to deeply understand the influence of earthquake disasters on human beings, earthquake experience houses are produced in many places, and people who experience the earthquake experience houses can really feel the strong impact of the earthquake. The professional experience hall can simulate various scenes with ultra-reality, truly make people feel different types of earthquakes, and know various reasons for prompting the earthquakes more deeply, but the sensory feelings have no definite basic physical explanation, so that people do not understand the principle behind the earthquake damage deeply.

Disclosure of Invention

In order to solve the defects, the utility model provides a device for comparing and demonstrating the difference of the earth vibration characteristics, which shows the vibration reaction of connecting rods with different lengths under the vibration of different frequencies, further simulates the damage condition of buildings with different heights under the seismic vibration of different frequencies in the actual condition, visually shows the principle of damaging the buildings by the earthquake to people, and has the advantages of simplicity, low price, stability and automation.

The technical scheme adopted for realizing the above purpose of the utility model is as follows:

a device for comparing and demonstrating differences of earth vibration characteristics comprises a display cabinet body and at least two vibration models, wherein each vibration model comprises a sphere, a connecting rod and a base, the sphere, the connecting rod and the base are fixedly connected in sequence from top to bottom, and the connecting rod is an elastic part; the top surface of the display cabinet body is provided with a groove, a guide rail is arranged in the groove, a display table top is arranged above the groove, the top surface of the display table top is fixedly connected with the base, the bottom surface of the display table top is provided with a vibration motor and at least two sliding blocks, the sliding blocks are positioned on two sides of the vibration motor, and the bottom surfaces of the sliding blocks are connected with the guide rail; a frequency modulation controller, a control module, a communication module and a power supply module are arranged in the display cabinet body, the communication module is connected with the control module, the control module is connected with the frequency modulation controller, the power supply module is connected with the control module, and the frequency modulation controller is connected with the vibration motor by penetrating through a through hole arranged on the groove through a lead; the display cabinet is characterized in that a control panel is arranged on the outer side of the display cabinet body and connected with a control module.

The top of the display cabinet body is also provided with a transparent protective cover matched with the display cabinet body.

The demonstration device comprises three vibration models, and the lengths of the connecting rods of the three vibration models are sequentially increased or decreased.

The sphere is a hollow sphere.

And the communication module is provided with a Bluetooth communicator for realizing wireless communication.

The control panel is provided with a button, and the button is connected with the control module through a wire.

Compared with the prior art, the earthquake simulation device has the advantages that the earthquake simulation device is simple in structure, buildings with different heights are simulated through the connecting rods with different lengths, the earthquake with different frequencies is simulated through the vibration of different frequencies, so that the damage to the buildings with different heights under the earthquake with different levels is shown, the complex principle that the buildings are damaged by the earthquake is shown through the simple shaking amplitude of the sphere, the self-vibration periods of the buildings with different heights are shown to be different through the elastic movement of the connecting rods, and the response difference of the different buildings to the same earthquake wave is further shown to be larger; the device is simplified, and the simulation effect is good, lets spectator observe the antidetonation effect that the building of co-altitude formed directly perceivedly, and the picture of three-dimensional and multidimension degree also easily forms the memory more, has low cost simultaneously, directly perceived concrete, simple and understandable, popular science covers many advantages of crowd.

Drawings

FIG. 1 is a schematic view of the construction of the demonstration apparatus of the present invention;

FIG. 2 is a view of a connection frame within the display case provided by the present invention;

FIG. 3 is a schematic structural diagram of a control panel according to the present invention;

in the figure: the display cabinet comprises a display cabinet body 1, a transparent protective cover 2, a control panel 3, a display table top 4, a sliding block 5, a guide rail 6, a vibration motor 7, a frequency modulation controller 8, a control module 9, a communication module 10, a power supply module 11, a base 12, a connecting rod 13, a sphere 14 and a vibration model 15.

Detailed Description

The utility model is further illustrated by the following figures and examples.

With reference to fig. 1 to 3, the present embodiment provides a device for demonstrating differences in earthquake characteristics, the device includes a display cabinet 1 and three vibration models 15, wherein each vibration model includes a sphere 14, a connecting rod 13 and a base 12, which are fixedly connected in sequence from top to bottom, the connecting rod is an elastic member, the lengths of the connecting rods of the three vibration models decrease from left to right in sequence, and the sphere is a hollow sphere;

the top surface of the display cabinet body is provided with a groove, a guide rail 6 is arranged in the groove, a display table top 4 is arranged above the groove, the top surface of the display table top is fixedly connected with the base, the bottom surface of the display table top is provided with a vibration motor 7 and two sliding blocks 5, the sliding blocks are positioned on two sides of the vibration motor, and the bottom surfaces of the sliding blocks are connected with the guide rail; a frequency modulation controller 8, a control module 9, a communication module 10 and a power module 11 are arranged in the display cabinet body, wherein a Bluetooth communicator is arranged on the communication module and is used for realizing wireless communication; the communication module is connected with the control module, the control module is connected with the frequency modulation controller, the power supply module is connected with the control module, and the frequency modulation controller is connected with the vibration motor by penetrating through a through hole arranged on the groove through a lead; a control panel 3 is arranged on the outer side of the bottom of the display cabinet body, a button is arranged on the control panel, and the button is connected with the control module through a wire; the top of the display cabinet body is also provided with a transparent protective cover 2 matched with the display cabinet body.

The working principle is as follows: firstly, an external power supply is connected, in a wired control working mode, a worker presses a power supply button on a control panel to start a device, then presses a low-frequency button, signals of the button sequentially pass through a control module, a frequency modulation controller and a vibration motor, so that the vibration motor vibrates at the lowest frequency and drives a display table to move on a guide rail, and along with the movement of a display platform, the swing amplitude of a ball of a vibration model with the longest connecting rod in the moving process is most obvious, and the other vibration models are not obvious; when the medium-frequency button is pressed down, the vibration motor performs secondary low-frequency vibration, the sphere swing amplitude of the vibration model with the next long connecting rod is most obvious, and the other parts are not obvious; when a high-frequency button is pressed, the vibration motor vibrates at the highest frequency, the sphere swing amplitude of the vibration model with the next shortest connecting rod is most obvious, and the other vibration models are not obvious;

in the wireless control working mode, operation software is downloaded on an operation instrument, the software is common software in the market, the operation instrument is connected with a communication module through Bluetooth pairing, so that the control module is controlled, and then low-frequency, intermediate-frequency or high-frequency signals are output through the operation software, so that the lowest-frequency, second-low-frequency and highest-frequency vibration is output.

Claims

1. The utility model provides a vibrations characteristic difference contrast presentation device which characterized in that: the demonstration device comprises a demonstration cabinet body and at least two vibration models, wherein each vibration model comprises a sphere, a connecting rod and a base which are fixedly connected in sequence from top to bottom, and the connecting rod is an elastic piece; the top surface of the display cabinet body is provided with a groove, a guide rail is arranged in the groove, a display table top is arranged above the groove, the top surface of the display table top is fixedly connected with the base, the bottom surface of the display table top is provided with a vibration motor and at least two sliding blocks, the sliding blocks are positioned on two sides of the vibration motor, and the bottom surfaces of the sliding blocks are connected with the guide rail; a frequency modulation controller, a control module, a communication module and a power supply module are arranged in the display cabinet body, the communication module is connected with the control module, the control module is connected with the frequency modulation controller, the power supply module is connected with the control module, and the frequency modulation controller is connected with the vibration motor by penetrating through a through hole arranged on the groove through a lead; the display cabinet is characterized in that a control panel is arranged on the outer side of the display cabinet body and connected with a control module.

2. The seismic motion feature difference contrast demonstration apparatus of claim 1 wherein: the top of the display cabinet body is also provided with a transparent protective cover matched with the display cabinet body.

3. The seismic motion feature difference contrast demonstration apparatus of claim 1 wherein: the demonstration device comprises three vibration models, and the lengths of the connecting rods of the three vibration models are sequentially increased or decreased.

4. The seismic motion feature difference contrast demonstration apparatus of claim 1 wherein: the sphere is a hollow sphere.

5. The seismic motion feature difference contrast demonstration apparatus of claim 1 wherein: and the communication module is provided with a Bluetooth communicator for realizing wireless communication.

6. The seismic motion feature difference contrast demonstration apparatus of claim 1 wherein: the control panel is provided with a button, and the button is connected with the control module through a wire.