Propaganda carrier for innovative science and technology service
The utility model discloses a propaganda carrier for innovative science and technology service, which belongs to the technical field of innovative science and technology service devices and comprises two mounting rods and a fixing cylinder, the fixing cylinder is positioned below the two mounting ro...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The utility model discloses a propaganda carrier for innovative science and technology service, which belongs to the technical field of innovative science and technology service devices and comprises two mounting rods and a fixing cylinder, the fixing cylinder is positioned below the two mounting rods, limiting hoops are mounted on the rear sides of the two mounting rods, and two propaganda boards are mounted between the two mounting rods. A telescopic cylinder is fixedly connected to the upper end of the fixing cylinder, a plurality of second springs are arranged in the telescopic cylinder, a supporting ring is fixedly connected to the upper end of the telescopic cylinder, the outer diameter of the supporting ring is larger than that of the telescopic cylinder, and fixing ropes are fixedly connected to the left side and the right side of the lower end face of the supporting ring. The second spring publicity boards in the telescopic cylinders are used for supporting, when publicity content expires, the fixing |
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