Advertising board device
A technology for billboards and equipment, applied to signs, instruments, display devices, etc., can solve problems such as low cleaning efficiency, and achieve the effects of strong practicability, improved cleaning efficiency, and reduced labor intensity
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[0026] The following is further described in detail by specific embodiments:
[0027] The reference signs in the accompanying drawings include: machine base 1, concave table 2, vertical hole 3, rack 4, sponge layer 5, first spring 6, wedge block 7, second spring 8, water spray hole 9 , installation table 10, elastic sheet 11, guide hole 12, fixed shaft 13, gear 14, wire rope 15, wedge table 16, third spring 17, water inlet hole 18, transverse hole 19, piston cylinder 20, negative pressure pipe 21. Piston rod 22, fourth spring 23, piston plate 24, wedge groove 25, groove 26, rubber sheet 27, sphere 28, protrusion 29, disc 30, telescopic rod 31, positioning groove 32, cleaning groove 33 , handle 34.
[0028] The example is basically as attached figure 1 Shown: a billboard equipment, including a machine base 1, a concave table 2 is fixed horizontally on the machine base 1, and vertical holes 3 are opened on both sides of the concave table 2; the concave table 2 is arranged in s...
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