Child head leaning degree measuring instrument
The utility model provides a child head leaning degree measuring instrument, comprising an annular ring which is provided with four through mounting holes at intervals, and the four through mounting holes respectively correspond to an eyebrow, a left ear, a right ear and a spine line; the suction cu...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model provides a child head leaning degree measuring instrument, comprising an annular ring which is provided with four through mounting holes at intervals, and the four through mounting holes respectively correspond to an eyebrow, a left ear, a right ear and a spine line; the suction cup assembly comprises a suction cup shaft and a suction cup which are mounted in the through mounting hole; the four distance measuring probes are installed on the inner wall of the annular ring, the first probe and the second probe are located on the two sides of the eyebrow respectively, the third probe and the fourth probe are located on the two sides of the spine line respectively, and the included angle between the connecting line between the first probe and the third probe and the connecting line between the eyebrow and the spine line and the included angle between the connecting line between the second probe and the fourth probe and the connecting line between the eyebrow and the spine line are both 40 degree |
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