A tourism management indicating device
A technology of indicating equipment and arc tubes, applied in the field of tourism management, can solve the problems of inconvenient to carry, inconvenient, and single function of the teaching board, and achieve the effects of easy writing, improved stability, and convenient writing
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Embodiment 1
[0028] Embodiment one is basically as attached Figure 1-6 Shown: as figure 1 A tourism management indicating device shown includes a teaching board 1, a buoyancy mechanism and two supporting arc tubes 2. There is a hole in the teaching board 1, and an indicating rod 21 is inserted in the hole, and the indicating rod 21 is used to support the colored flag. . Teaching board 1 comprises the first rubber plate 3 and the second rubber plate 4; image 3 as shown ( image 3 for figure 1 sectional view from upper left to lower right direction), the lower end of the first rubber plate 3 and the lower end of the second rubber plate 4 are welded or bonded by glue, and the upper end of the first rubber plate 3 and the upper end of the second rubber plate 4 are at C For contact, the rubber plate can be made of polyurethane hard rubber plate.
[0029] Such as figure 1 As shown, the lower ends of the two supporting arc tubes 2 are bonded to the teaching board 1 by glue, as image 3 A...
Embodiment 2
[0039] On the basis of Example 1, such as image 3 As shown, the side walls where the upper end of the first rubber plate 3 and the upper end of the second rubber plate 4 contact each have an arc transition with the upper side wall of the cavity 7, that is image 3 The lower position shown in C. Such as Figure 4 As shown, the cross-section of the top plate 17 is an inverted trapezoid; a sealing plate 23 is welded in the blind hole 15, and the sealing plate 23 and the blind hole 15 form a sealed cavity, and the motor 9 is located in the sealed cavity; between the fan piece 13 and the side wall of the inner cavity 11 There is a distance between them; the distribution in the middle of the helical blade 16 is denser than that at the two ends of the helical blade 16.
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