Cleaning apparatus

Abstract

A cleaning apparatus comprises a main rod, a wringing tube, a bearing, a lock, and a cleaning rag assembly. The lock has an upper end with an elastic holding assembly with insertion heads which respectively enter blocking holes of the main rod. Thereby the lock is easily mounted at the lower end of said main rod and dismounted therefrom, allowing to replace the cleaning rug assembly. The wringing tube has an upper end with a unidirectional wheel and an opening through which a lever assembly reaches which engages with a unidirectional wheel, permitting the unidirectional wheel to turn in one and only one direction, so that the cleaning rag is wrung dry with minimal physical effort.

1 . A cleaning apparatus, comprising:
 a main rod, having two blocking holes at a lower end thereof;   a wringing tube, coaxially put over said main rod, being glidingly movable against said main rod, and having a lower end with a flange;   a bearing, fastened to said main rod at a lower end thereof;   a lock, having a lower end with a flange and an upper end with an elastic holding assembly with insertion heads which respectively enter said blocking holes of said main rod; and   a cleaning rug assembly, surrounding said bearing and said wringing tube, having an upper end held by said flange of said wringing tube and a lower end held by said flange of said lock;   wherein said lock is easily mounted at said lower end of said main rod and dismounted therefrom, allowing to replace said cleaning rug assembly.   
   
   
       2 . The cleaning apparatus of  claim 1 , wherein said holding assembly of said lock comprises a helical spring and two insertion heads at opposite ends thereof. 
   
   
       3 . The cleaning apparatus of  claim 1 , wherein said holding assembly of said lock comprises a plate spring and one insertion head mounted thereon. 
   
   
       4 . The cleaning apparatus of  claim 1 , wherein said lock on a middle section thereof has projections placed in spaces between inward protrusions on said bearing. 
   
   
       5 . A cleaning apparatus, comprising:
 a main rod;   a wringing tube, coaxially put over said main rod, being glidingly movable against said main rod, and having a lower end with a flange, furthermore having an upper end with a unidirectional wheel and an opening through which a lever assembly reaches which engages with said unidirectional wheel, permitting said unidirectional wheel to turn in one and only one direction;   a bearing, fastened to said main rod at a lower end thereof;   a lock, having a lower end with a flange and an upper end which is mounted at a lower end of said main rod; and   a cleaning rug assembly, surrounding said bearing and said wringing tube, having an upper end held by said flange of said wringing tube and a lower end held by said flange of said lock.   
   
   
       6 . The cleaning apparatus of  claim 5 , wherein said lever assembly further comprises a lever, having an inner end carrying a blocking tooth permitting said unidirectional wheel to turn in one and only one direction, a lateral hole in a central position through which an axis passes, and a projection at an outer end, with a spring being inserted between said projection and a base fixed on said wringing tube below said opening thereof. 
   
   
       7 . The cleaning apparatus of  claim 5 , wherein said flange of said wringing tube has a plurality of cone-shaped protrusions.