Anti-turn-back twist mop

Abstract

The present invention provides an anti-turn-back twist mop including a main handle, a holding sleeve, a mop cloth and a clutch member. The holding sleeve is up and down movably and rotatably fitting over the main handle. Two ends of the mop cloth are respectively connected with the main handle and the holding sleeve. When rotating the main handle and holding sleeve relative to each other, the mop cloth can be wrung dry. The clutch member is fitting over the main handle and movable therealong. When rotating the main handle, the clutch member is rotated along therewith. A bottom end of the clutch member and a top end of the holding sleeve are respectively formed with ratchets engaged with each other. By means of the engagement between the clutch member and holding sleeve, when wringing the mop cloth, the main handle is prevented from being rotated back by the pulling force of the mop cloth.

1 . An anti-turn-back twist mop comprising:
 a main handle;   a holding sleeve fitting over the main handle, and moving longitudinally along and rotating about the main handle, wherein the holding sleeve includes a circle of ratchets disposed at a top end thereof;   a mop cloth having a first end connected with a bottom end of the holding sleeve and a second end connected with a bottom end of the main handle;   a clutch member being cylindrical, which is fitting over, moving longitudinally along, driven by and rotated about the main handle; wherein the clutch member includes a circle of ratchets disposed at a bottom end thereof and engaging with the corresponding ratchets of the top end of the holding sleeve; whereby the ratchets of the clutch member are engaged with and disengaged from the ratchets of the holding sleeve in an alternate manner and the clutch member rumbles up and down along the main handle when the main handle is rotated in one direction; the main handle is prevented from rotating back in an opposite direction when the clutch member is engaged with the holding sleeve; and   a restriction member disposed between the clutch member and the holding sleeve, whereby the restriction member only permits the clutch member to move relative to the holding sleeve along the main handle by a small distance.   
   
   
       2 . The twist mop as claimed in  claim 1 , wherein the clutch member has an annular rib disposed on an outer circumference thereof; the restriction member is a restriction collar having a shoulder section disposed on an inner circumference thereof, and a bottom end connected with the outer circumference of the top end of the holding sleeve, the restriction member is fitted around the outer circumference of the clutch member, and the shoulder section is positioned above the annular rib of the clutch member. 
   
   
       3 . The twist mop as claimed in  claim 2 , wherein the clutch member has a top end extending out of the restriction member. 
   
   
       4 . The twist mop as claimed in  claim 1 , wherein the main handle includes a fitting section disposed on the outer circumference thereof; the clutch member has an engaging section disposed on the inner circumference thereof, the engaging section of the clutch member is engaged with the fitting section of the main handle. 
   
   
       5 . The twist mop as claimed in  claim 3 , wherein the main handle includes a fitting section disposed on the outer circumference thereof; the clutch member has an engaging section disposed on the inner circumference thereof, the engaging section of the clutch member is engaged with the fitting section of the main handle. 
   
   
       6 . The twist mop as claimed in  claim 1 , wherein the circle of ratchets of the clutch member is disposed on an end face of the bottom end of the clutch member, and the circle of ratchets of the holding sleeve is disposed on a circumference of the holding sleeve. 
   
   
       7 . The twist mop as claimed in  claim 4 , wherein the circle of ratchets of the clutch member is disposed on an end face of the bottom end of the clutch member, and the circle of ratchets of the holding sleeve is disposed on a circumference of the holding sleeve. 
   
   
       8 . The twist mop as claimed in  claim 5 , wherein the circle of ratchets of the clutch member is disposed on an end face of the bottom end of the clutch member, and the circle of ratchets of the holding sleeve is disposed on a circumference of the holding sleeve. 
   
   
       9 . The twist mop as claimed in  claim 1 , wherein the circle of ratchets of the clutch member is disposed on a circumference of the clutch member, and the circle of ratchets of the holding sleeve is disposed on an end face of the top end of the holding sleeve. 
   
   
       10 . The twist mop as claimed in  claim 2 , wherein the circle of ratchets of the clutch member is positioned under a bottom face of the annular rib, and the circle of ratchets of the holding sleeve is disposed on an end face of the top end of the holding sleeve. 
   
   
       11 . The twist mop as claimed in  claim 4 , wherein the circle of ratchets of the clutch member is disposed on a circumference of the clutch member, and the circle of ratchets of the holding sleeve is disposed on an end face of the top end of the holding sleeve. 
   
   
       12 . The twist mop as claimed in  claim 5 , wherein the circle of ratchets of the clutch member is disposed on a circumference of the clutch member, and the circle of ratchets of the holding sleeve is disposed on an end face of the top end of the holding sleeve. 
   
   
       13 . The twist mop as claimed in  claim 3 , wherein the top end of the clutch member is resiliently expandable and contractible; and further including:
 a binding collar rotatably fitted around the top end of the clutch member, whereby when rotating the binding collar in one direction, wherein the binding collar tightly binds the top end of the clutch member on the main handle.   
   
   
       14 . The twist mop as claimed in  claim 3 , wherein the top end of the clutch member has at least two resilient plates, which are resiliently biased toward each other; and further including:
 a binding collar rotatably fitted around the resilient plates of the clutch member and including at least one protruding block disposed on an inner circumference thereof, whereby when rotating the binding collar in one direction, the protruding blocks press the resilient plates against the main handle to tightly bind the top end of the clutch member on the main handle.   
   
   
       15 . The twist mop as claimed in  claim 1 , wherein the restriction member is longitudinally movable along the holding sleeve by a displacement distance, and the clutch member includes a large-diameter section disposed on an outer circumference of the clutch member, wherein the large-diameter section is in a position higher than the restriction member and comes into a distance between the large-diameter section and the restriction member, the distance is smaller than the displacement distance of the restriction member, the restriction member touches the large-diameter section to drive and move the clutch member upward when the restriction member is moved upward, whereby the ratchets of the holding sleeve are disengaged from the ratchets of the clutch member. 
   
   
       16 . The twist mop as claimed in  claim 15 , wherein the restriction member is a collar member screwed on the outer circumference of the top end of the holding sleeve; the bottom end of the clutch member extends into the restriction member. 
   
   
       17 . The twist mop as claimed in  claim 16 , wherein the clutch member includes an annular rib disposed on the outer circumference thereof; the restriction member has a shoulder section disposed on the inner circumference thereof and positioned above the annular rib of the clutch member. 
   
   
       18 . The twist mop as claimed in  claim 15 , wherein the top end of the clutch member is resiliently expandable and contractible; and further including: a binding collar served as the large-diameter section and fitted around the top end of the clutch member. 
   
   
       19 . The twist mop as claimed in  claim 15 , wherein the circle of ratchets of the clutch member is disposed on an end face of the bottom end of the clutch member, and the circle of ratchets of the holding sleeve is disposed on a circumference of the holding sleeve. 
   
   
       20 . The twist mop as claimed in  claim 15 , wherein the circle of ratchets of the clutch member is disposed on a circumference of the clutch member, and the circle of ratchets of the holding sleeve is disposed on an end face of the top end of the holding sleeve.