Gas return and sound eliminating master gas control valve for dental unit gas foot switch
A treatment machine, air valve technology, applied in dentistry, valve details, diaphragm valves, etc., can solve the problems of troublesome replacement, insufficient tightness, easy to leak air, etc., to achieve convenient disassembly and maintenance, fast and convenient installation, and convenient improvement. sexual effect
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[0019] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following describes the present invention in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0020] Such as Figure 1-3 As shown, a main control air valve for air return and noise reduction of an air foot switch of a dental treatment machine includes an air valve body 1, a pedal 2, a main air chamber 3, an air outlet chamber 4, an air inlet chamber 5, and a remaining air chamber 6. The air cavity 3 is opened from the top to the bottom in the upper middle of the inner side of the air valve body 1, and the outlet cavity 4 and the air inlet cavity 5 are respectively opened at the center of the left and right sides of the valve body 1 and communicate with the main air cavity 3. The rem...
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