A movable sand table model of the internal structure of the house
An internal structure, sand table technology, applied in teaching models, instruments, educational appliances, etc., can solve the problems of low installation and adaptation performance, poor simulation display function, etc.
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Embodiment 1
[0048] as attached Figure 4 to the attached Figure 5 shown:
[0049] First, the bottom ends of the four support shafts 23 are provided with installation cavities 25, and rolling balls 217 are embedded in the lower bottom cavity openings of the four installation cavities 25. The bottom end faces of the four square extrusion blocks 216 correspond to The rolling ball 217 is designed to fit, and the rolling ball 217 that can be rotated at any angle can be installed to adjust the relative insertion depth of the support shaft barrel 21 and the support shaft rod 23, and preliminarily improve the installation and adaptation performance of the sand table model of the internal structure of the house;
[0050] Secondly, considering that once the rolling balls 217 are installed, the displacement of the sand table model of the internal structure of the house can be facilitated, but in the actual display process, the sand table model of the internal structure of the house is required to ...
Embodiment 2
[0053] as attached Figure 10 shown:
[0054] The spherical lower bottom of the square pressing block 216 is embedded with a number of elastically retractable pressing heads. The collision of the balls 217 will be compressed into the square pressing block 216, but each pressing head 215 will generate elastic restoring force due to being compressed. Finally, when the spherical lower bottom of the square pressing block 216 is completely in contact with the rolling ball 217 When the top spherical surfaces are in contact with each other, the thrust force of elastic recovery can be used to make the extrusion head collide with the rolling ball 217, which further improves the installation adaptability.
Embodiment 3
[0056] as attached Image 6 to the attached Figure 8 shown:
[0057] First, the four moving adjustment mechanisms 3 include magnet pieces 31, and square iron blocks 34 are arranged above the four magnet pieces 31. Using the principle of magnetic attraction between the magnet pieces 31 and the square iron blocks 34, the magnet pieces 31 and the square iron block 34 are magnetically attracted to each other. The iron block 34 reaches a stable connection state, which preliminarily improves the functionality of the simulation display;
[0058] Secondly, the tops of the four square iron blocks 34 are vertically fixedly installed with the sand table model 35, and the tops of the four magnet pieces 31 and the four corners of the bottom ends of the four square iron blocks 34 are fixedly installed with ball mounting seats 36, Several ball mounting seats 36 are provided with large ball mounting grooves 37 at one end close to the grille 12 , and several small ball mounting grooves 38 a...
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