Cage type reciprocating joint

Abstract

The invention discloses a cage type reciprocating joint. The joint comprises a fixed outer sleeve and a connecting sleeve which are in thread connection, wherein a movable cavity is formed in the fixed outer sleeve and the connecting sleeve, a cage is arranged in the movable cavity, an input gear is arranged in the cage, and an output gear is vertically connected to the input gear and rotationallyarranged in the cage; an eccentric hole is formed in the output gear, an eccentric shaft pin is arranged in the eccentric hole, a cam is arranged on the eccentric shaft pin, and one end of the cam isconnected with a reciprocating output shaft. Gears with different numbers of teeth can be replaced so as to greatly change the frequency of reciprocating motion, and adjustability is better; the whole movement structure is placed in a cage, thereby having better stability and small volume.

Description

technical field [0001] The invention relates to the field of medical device accessories, in particular to a cage-type reciprocating joint. Background technique [0002] Medical hand-held electric drills are commonly used equipment in hospital operations. They are easy to use and portable. Medical electric drills often need to replace different joints according to different usage occasions. For a type of drill that needs to be cut into bones during surgery, it is often a reciprocating joint. It can turn the rotation of the motor into a reciprocating linear motion to cut bones back and forth, but the traditional reciprocating joint has poor stability and large volume, and the frequency of reciprocating motion can only be adjusted by the speed of the motor, which is poor in adjustability. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a cage-type reciprocating joint. [0004] The technical solution of the presen...

AI Technical Summary

Problems solved by technology

[0002] Medical hand-held electric drills are commonly used equipment in hospital operations. They are easy to use and portable. Medical electric drills often need to replace different joints according to different usage occasions. For a type of drill that needs to be cut into bones during surgery, it is often a reciprocating joint. It can turn the rotation of the motor into a reciprocating linear motion to cut bones back and forth, but the traditional reciprocating joint has poor stability and large volume, and the frequency of reciprocating motion can only be adjusted by the speed of the motor, which is poor in adjustability

Images