expectoration instrument percussion head

Abstract

The invention discloses a knocking head of an expectoration instrument, relates to the field of expectoration instruments, and provides a knocking head of an expectoration instrument which only moves in a straight line to realize tapping. The percussion head of the expectoration instrument includes a shell, an end cover, a motor, a drive plate, a vibrating plate, a return spring, a flexible head, an adjustment sleeve and a handle; at least two guide posts are connected to the lower end plate of the shell; On the main body of the housing; the motor, the drive plate, the vibrating plate, and the return spring are coaxially arranged in the main body of the shell from top to bottom; the motor is connected to the end cover; the drive plate is connected to the motor, and a Bearings, the bearings limit the axial movement of the drive plate, and the drive plate is provided with a ring-shaped driving track, the surface shape of which is wavy; the vibrating plate is set on the guide column, and balls are set on the vibrating plate; the return spring makes the ball and the ring drive The flexible head is connected with the vibrating plate, the adjusting sleeve is connected with the housing and the axial position can be adjusted; the handle is connected with the main body of the housing.

Description

Technical field[0001]The present invention relates to the field of sputum instruments, in particular to a sputum instrument hit.Background technique[0002]When the thread is thick, the vibration dismissal can make the sputum easily coughed, and the sputum instrument is used to achieve a medical device for vibration. The sputum instrument includes a host and a slap, driven by the host. Put the slap in the rear back area corresponding to the human lungs, and the splitter vibration is to generate sniper to the region, so that the sputum is loose and easy to discharge.[0003]The main structure of common sputum instruments is an eccentric shaft, and the eccentric shaft rotation causes vibration of the entire slap. The driver of the eccentric shaft is achieved by a soft shaft, that is, the sputum master is provided that the motor drives the soft shaft rotation, and the eccentric shaft is rotated. The disclosure of the patent disclosed in CN201020647872.4 and CN201610289066.6 is this structu...

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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