Take-off device for physical education
The invention discloses a take-off device for physical education, which comprises a base, a pedal and springs, and further comprises a self-adaptive ground gripping structure, sinking grooves are formed in the mounting positions, corresponding to the springs, of the base, a pressure base plate is em...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a take-off device for physical education, which comprises a base, a pedal and springs, and further comprises a self-adaptive ground gripping structure, sinking grooves are formed in the mounting positions, corresponding to the springs, of the base, a pressure base plate is embedded in the sinking grooves, a plurality of springs are connected to the pressure base plate, and the pressure base plate is movably arranged at the inner bottom of the sinking grooves through first high-rigidity springs; the self-adaptive ground gripping structure comprises a turnover plate and a telescopic plate, the telescopic plate is overturned and then gripped on a ground runway through a steel shot, and the turnover plate is filled with a fluid medium; the spring guide structure comprises a clamping sleeve arranged outside a spring, a first induction coil is arranged on the upper half portion of the clamping sleeve, a pushing piece is arranged in the spring, and a second induction coil is arranged at the o |
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