Movie and television advertisement curtain mounting and placing mechanism facilitating curtain switching
The invention discloses a movie and television advertisement curtain mounting and placing mechanism facilitating curtain switching. The mechanism comprises a left support plate, an electric push rod and a bead chain, a first threaded rod is mounted in the left supporting plate through a bearing, a s...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a movie and television advertisement curtain mounting and placing mechanism facilitating curtain switching. The mechanism comprises a left support plate, an electric push rod and a bead chain, a first threaded rod is mounted in the left supporting plate through a bearing, a second threaded rod is arranged on the rear side of the first threaded rod, the outer sides of the second threaded rod and the first threaded rod are in key connection with rotating gears, a placing plate is fixed to the right side of the upper portion of the left supporting plate, a first fixing sleeve rod is arranged below the left end of the placing plate, the left end of the first fixing sleeve rod is connected with the left supporting plate through a bearing, and a second fixing sleeve rod is arranged on the rear side of the first fixing sleeve rod. According to the movie and television advertisement curtain mounting and placing mechanism facilitating the curtain switching, the first fixing sleeve rod and the s |
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