Craft Chu PLLC
Overload protection device and high-speed dental handpiece comprising same
The overload protection device used on a high-speed dental handpiece includes a valve body, a piston, an elastic member, and a valve plug. The valve body is provided with an air chamber and an air intake passage in communication with each other. The piston is arranged in the air chamber. The valve plug is arranged at an end of the air chamber away from the air intake passage and is connected with the valve body. The elastic member is arranged between the piston and the valve plug. An outer surface of the valve body is provided with a plurality of air discharging holes which is in communication with the air chamber. The piston is capable of opening or closing the air discharging holes when moving vertically within the air chamber. The present invention further discloses a high-speed dental handpiece with an overload protection device.
GUILIN WOODPECKER MEDICAL INSTRUMENT CO., LTD.
A A A A F F F F
A61C A61C A61C A61C F16K F01D F01B F16K
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Xunxian Yongchao Zhaolin Wei Hongcan Qingjian
Wu Huang Li Li Wang Deng