Pump chamber mechanism of shock wave therapeutic apparatus

The utility model discloses a pump chamber mechanism of a shock wave therapeutic apparatus. A compression pump; a first accommodating cavity and a second accommodating cavity are formed in the mainframe box body; the sound insulation box body is made of sound insulation and noise reduction materials and arranged on the bottom wall of the second containing cavity, a third containing cavity is formed in the sound insulation box body, the compression pump is arranged in the third containing cavity of the sound insulation box body, and the filter is arranged on the outer wall of the sound insulation box body; one end of the connecting pipe body is communicated with the output port of the compression pump, and the other end is communicated with the input port of the filter; wherein a fourth containing cavity and an opening enabling the second containing cavity to be communicated with the fourth containing cavity are formed in the bottom of the main machine box body, the opening is communicated with the third conta