Percussion head of expectoration instrument

Abstract

The invention discloses a percussion head of an expectoration instrument, relates to the field of expectoration instruments, and provides the percussion head which achieves percussion through linear motion and is used for the expectoration instrument. The percussion head of the expectoration instrument comprises a shell, an end cover, a motor, a driving disc, a vibration disc, reset springs, a flexible head, an adjusting sleeve and a handle; at least two guide pillars are connected to a lower end plate of the shell; the end cover covers a main shell body; the motor, the driving disc, the vibration disc and the reset springs are coaxially arranged in the main shell body from top to bottom; the motor is connected with the end cover; the driving disc is connected with the motor, bearings arearranged between the driving disc and the main shell body and limit the driving disc to axial movement, an annular driving track is arranged on the driving disc, and the surface of the annular drivingtrack is in a wavy shape; the vibration disc sleeves the guiding pillars, and balls are arranged on the vibration disc; the reset springs make the balls be in contact with the annular driving track;the flexible head is connected with the vibration disc, and the adjusting sleeve is connected with the shell and is adjustable in axial position; the handle is connected with the main shell body.

Description

Technical field [0001] The invention relates to the field of expectoration instruments, in particular to a tapping head of an expectoration instrument. Background technique [0002] When the sputum is thick and difficult to cough up, the vibratory expectoration can make the sputum easy to expectorate. The expectoration instrument is a medical device used to realize the vibratory expectoration. The expectoration apparatus includes a host and a tapping head, and the host drives the tapping head to vibrate. Place the tapping head on the back area corresponding to the lungs of the human body. The vibration of the tapping head will tap the area, which will loosen the sputum and make it easier to discharge. [0003] The main structure of the tapping head of a common expectoration instrument is an eccentric shaft, and the rotation of the eccentric shaft makes the entire tapping head vibrate. The drive of the eccentric shaft is realized by the flexible shaft, that is, the main body of th...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the above-mentioned expectoration instrument are: (1) Since the direction of the centrifugal force of the rotation of the eccentric shaft is constantly changing, the percussion head actually moves in a circle, and the whole percussion head moves in a circular motion. The human body also needs to overcome the force in other directions, the operator exerts a lot of force when operating, and is prone to fatigue

(2) Due to the use of flexible shafts to transmit power, the line from the host to the percussion head is relatively thick, heavy, and inconvenient to bend, which also increases the difficulty of operation

(3) The eccentricity of the eccentric shaft cannot be adjusted, so the amplitude of the tapping head cannot be adjusted

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