Highway fault warning device
A warning device and expressway technology, applied in the direction of roads, roads, road signs, etc., can solve the problems of secondary traffic accidents, the vehicles behind cannot be found in time, and the vehicles behind send out dangerous signals, so as to reduce secondary accidents and enhance warnings Function, easy operation effect
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Embodiment 1
[0049] Example one, by Figure 1-7 Provided, a highway fault warning device, comprising: an installation base 1, a warning sign 2 and a sound box 3, the warning sign 2 is movably arranged on the top of the installation base 1, and the sound box 3 is fixedly connected to the rear side of the warning sign 2, The installation base 1 is provided with an installation cavity, and a lifting mechanism is arranged in the installation cavity. The lifting mechanism is used to adjust the warning sign 2 up and down. The interior of the sound box 3 is provided with a cavity, and a sound mechanism is arranged in the cavity. It is used to emit sound to the warning sign 2, and the warning sign 2 is provided with a loudspeaker mechanism, and the loudspeaker mechanism is used to amplify and spread the sound.
[0050] see figure 2 , the sounding mechanism includes a fixed shaft 4, a sliding plate 8, a rotating shaft 12, a cam 13, a servo motor 14, two rotating parts 5, two sounding metal blocks...
Embodiment 2
[0054]Embodiment 2, on the basis of Embodiment 1, please refer to figure 1 , Figure 4 , Figure 7 , the lifting mechanism includes a two-way screw 20, a sliding port 24, a torsion block 26, two nuts 21, two first fixing seats 22, two transmission parts 23 and two second fixing seats 25, and the two-way screw 20 is rotatably connected In the installation cavity of the installation base 1 , two nuts 21 are symmetrically threaded on the bidirectional screw rod 20 , the two first fixing bases 22 are fixedly connected to the tops of the two nuts 21 respectively, and the sliding port 24 is opened on the installation base 1 . and the sliding port 24 is communicated with the installation cavity, the transmission member 23 is slidably connected in the sliding port 24, one side of the two transmission members 23 is rotatably connected to the two first fixed seats 22, and the two second fixed The seat 25 is symmetrically and fixedly connected to the bottom of the warning sign 2, and t...
Embodiment 3
[0059] Embodiment 3, on the basis of Embodiment 2, the material of the sounding metal block 6 is high carbon steel, and the sounding metal block 6 is hollow, because the carbon content of the high carbon steel is higher, the hardness is greater, and the more the object is studied, the higher the hardness. Hard, the greater the stiffness k, the higher its natural frequency, the higher the frequency of exciting the air vibration, the sharper the sound, and the harder it is to make a sound.
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