Self-cleaning outdoor advertising board
A billboard and self-cleaning technology, applied in the field of billboards, can solve the problems of high labor intensity, low cleaning efficiency, and affect the appearance, and achieve the effect of maintaining image and interests, reducing labor intensity, and improving advertising effects.
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Embodiment 1
[0021] refer to figure 1 , a self-cleaning outdoor billboard, including a main pole 1 and a lower fixed plate 2 and an upper fixed plate 3 fixedly connected to the side wall of the main pole 1, and a fixed connection between the lower fixed plate 2 and the upper fixed plate 3 The billboard 4, the upper end of the main rod 1 is provided with a through hole 5, and the two openings of the through hole 5 are provided with a mesh plate, and the impeller 6 is rotationally connected between the two mesh plates, and one of the blades of the impeller 6 adopts Made of magnetic material, there is a first sliding cavity 7 in the side wall of the main rod 1, and a magnetic sliding plug 8 is connected to the first sliding cavity 7 in a sealed and sliding manner, and the magnetic sliding plug 8 is elastically connected to the first sliding cavity 7 through a spring 10. inner top of the .
[0022] Further, when the magnetic blade of the impeller 6 rotates to the upper end, it is away from th...
Embodiment 2
[0029] refer to Figure 4 The difference from Embodiment 1 is that: the lower end of the first sliding chamber 7 is provided with a helical coil 21 with multiple turns in a closed state, and the lower end of the magnetic slider 8 is fixedly connected with a magnetic rod 20, which is located in the helical coil in the initial state. Outside the coil 21, colored lights 9 coupled with the spiral coil 21 are provided at the edge of the billboard 4.
[0030] It should be noted that the helical coil 21 is arranged in the vertical direction. When the magnetic bar 20 is displaced downward and extends into the helical coil 21, according to the principle of electromagnetic induction, the magnetic flux in the helical coil 21 increases, so an induced current is generated on the helical coil 21. ; When the magnetic bar 20 moves upwards and comes out from the helical coil 21, the magnetic flux in the helical coil 21 decreases, so the induced current is generated on the helical coil 21 again...
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