Door lock with button stopper
OwnerChien-chung Wanginventor
Life of this patent
Estimating the term…
Abstract
A door lock able to be prevented from being locked by an unexpected exterior force includes a main body, a fixing member and a handle. The main body is provided with a sleeve at the center extended outwards from two sides. One end of the sleeve is matched with a lining tube that is linked with a button. Via rotating the button for an angle, projections of a stopper attached with one end of the button is to be guided into a blocking groove of the lining tube, enabling the button to be locked in the blocking groove so that the button can not be pressed down, able to prevent the button from being locked by an unexpected exterior force.
Claims3
A door lock comprising:
- a main body provided with a driving member in an intermediate portion assembled with a sleeve respectively at two sides, said sleeve is inserted through said intermediate portion and has a lining tube located on one end thereof, a button located inside the sleeve, said button linked with a stopper at one end, said stopper provided with a plurality of projections around the outer annular rim, said lining tube provided with a guiding groove at a proper preset portion, said lining tube also provided with a blocking groove at one end adjacent to said guiding groove and a locking groove at the end of said guiding groove, said plurality of projections of said stopping piece selectively sliding within said guiding groove;
- a fixing member provided with a first disc and a second disc, said first disc provided with a hole, said second disc provided with a hole, said first disc and said second disc able to be fitted on said sleeve of said main body via penetrating through said hole of said first disc and said hole of said second disc;
- and
- a handle provided with a button hole at one end and a matching hole at the other end, said matching hole matched with the lining tube of said main body, said button hole fitted with said button;
- wherein the plurality of projections are selectively rotated between locked and unlocked positions, when the plurality of projections are located in the locked position the blocking groove limiting a movement of at least one projection of the plurality of projections and the button, and when the plurality of projections are located in the unlocked position the at least one projection of the plurality of projections is slidably located in the guidinq groove allowing the button to be depressed.
Dependencies are inferred from the claim text.