Pneumatically operated power tool having mechanism for changing compressed air pressure

Pneumatically operated power tool having mechanism for changing compressed air pressure

  • CN 101,239,461 A
  • Filed: 02/13/2008
  • Published: 08/13/2008
  • Est. Priority Date: 02/07/2007
  • Status: Active Grant
First Claim
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1. pneumatically-operated electric tool comprises:

  • Outside framework, described outside framework have compressed air and suck part, and limit delivery air chamber in described outside framework;

    Driver part, described driver part are arranged in the described outside framework also by the compressed air-driven in the described delivery air chamber;

    Pressure-reducing valve, described pressure-reducing valve limits pressure and receives the space, and makes compressed air flow to described delivery air chamber and described pressure reception space from the air entering part;

    AndSwitch valve, described switch valve can move between the primary importance and the second place, wherein at described primary importance place, compressed air flows to described pressure from described compressed air entering part and receives the space, and at described second place place, stop that described compressed air entering part and described pressure receive the connection between the space, if described switch valve is positioned at described primary importance, then described pressure-reducing valve is constituted as the compressed air pressure in the described delivery air chamber is set at first stress level, if described switch valve is positioned at the described second place, then described pressure-reducing valve is set at compressed air pressure second stress level that is lower than described first stress level.

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