Electric mop

Abstract

An electric mop includes a handle, a flopping member connected to the handle. The mopping member includes a driving member with an output thereof connected to a pair of cleaning portions. The driving member includes a motor with an output shaft thereof connected to a driving bevel gear, a reversing gear formed a right-angle transmission relationship with the driving bevel gear, and a pair of cylindrical gear groups respectively connected to the pair of cleaning portions. The difference between the number of cylindrical gears of the two groups is singular. The structure drives the two cleaning portions respectively rotation forward and backward by the driving member so that force of the two cleaning portions can be offset each other for users to keep balance and steadily control a moving direction of the electric mop, the two cleaning portions are provided for ensuring a large cleaning surface and cleaning some corners.

What is claimed is: 
     
         1 . An electric mop, comprising:
 a handle:   a mopping member connected to the handle, the mopping member comprising a driving member with an output thereof connecting to a cleaning member, the cleaning member comprising a first cleaning portion and a second cleaning portion; and   the driving member comprising a motor with an output shaft thereof connecting to a driving bevel gear;   a reversing gear formed a right-angle transmission relationship with the driving bevel gear, and comprising a driven bevel gear portion and a driven cylindrical gear portion coaxially fixed with each other, the driven bevel gear portion meshed with the driving bevel gear;   a cylindrical driving gear group comprising a first cylindrical driving gear connected to the first cleaning portion and a second cylindrical driving gear connected to the second cleaning portion;   a first cylindrical gear group with its input meshed with a side of the driven cylindrical gear portion and its output meshed with the first cylindrical driving gear;   a second cylindrical gear group with its input meshed with the other side of the driven cylindrical gear portion and its output meshed with the second cylindrical driving gear; and wherein   the difference between the number of cylindrical gears of the first cylindrical gear group and the second cylindrical gear group is singular.   
     
     
         2 . The electric mop as claimed in  claim 1 , wherein each of the first cylindrical gear group and the second cylindrical gear group comprises a rack wheel and a pinion coaxially fixed with the rack wheel, both the rack wheel and the pinion are cylindrical gears, and the rack wheel is acted as a transmission input, and the pinion is acted as a transmission output. 
     
     
         3 . The electric mop as claimed in  claim 1 , wherein the mopping member comprises a housing which comprising an oval cover, an oval base clasped with the cover and a receiving chamber formed between the cover and the base, the receiving chamber comprising a box for receiving the driving member therein, the box comprising an upper plate formed on the top thereof and a lower plate formed opposite to the upper plate; while the motor is horizontally received in a middle portion of the box, both the cover and the base are curved outward at an installation of the motor in the box. 
     
     
         4 . The electric mop as claimed in  claim 3 , wherein the first cylindrical driving gear is coordinated with the first cleaning portion via a polygonal shaft lever to engage with a shaft sleeve of the first cleaning portion, and the second cylindrical driving gear is also coordinated with the second cleaning portion via another polygonal shaft lever to engage with another shaft sleeve of the second cleaning portion; the polygonal shaft lever and a corresponding shaft sleeve are locked with each other by bolts and a bearing is arranged on the shaft lever at a position corresponding to the lower plate. 
     
     
         5 . The electric mop as claimed in  claim 4 , wherein each of the first and second cylindrical driving gears comprises a first horizontal ring extending upward from a corresponding upper surface thereof, with an equal-altitude gap formed between the first horizontal ring and the upper plate; a second horizontal ring extending downward from a middle portion of the upper plate and corresponding to the first and second cylindrical driving gears, with a same equal-altitude gap formed between the second horizontal ring and a corresponding upper surface of the first and second cylindrical driving gears. 
     
     
         6 . The electric mop as claimed in  claim 1 , wherein a handle bottom portion of the handle is movably connected to the mopping member and comprises a pair of clamping portions horizontally opposite to each other, and a ballhead formed between the pair of clamping portions and rotatably connected to the pair of clamping portions by a horizontal shaft of the clamping portion inserted into a corresponding horizontal shaft hole of the ballhead; while the mopping member comprises a pair of supporting portions longitudinally opposite to each other, the pair of supporting portions rotatably connected to the ballhead by a longitudinal shaft of the supporting portion inserted into a corresponding longitudinal shaft hole. 
     
     
         7 . The electric mop as claimed in  claim 6 , wherein the horizontal shaft comprises a first shaft body and the longitudinal shaft comprises a second shaft body, the first shaft body inserted into the horizontal shaft hole and comprising a first annular flange at a distal end thereof, and the second shaft body inserted into the longitudinal shaft hole and comprising a second annular flange at a distal end thereof, the first and second annular flanges provided for avoiding the first shaft body from separating from the horizontal shaft hole and the second shaft body from separating from the longitudinal shaft hole. 
     
     
         8 . The electric mop as claimed in  claim 1 , wherein the handle is a telescopic structure and comprises a fixing post and a moving post sleeved onto the fixing post from a top of the fixing post, the top of the fixing post comprises a locking member for controlling a movable position of the moving post. 
     
     
         9 . The electric mop as claimed in  claim 8 , wherein the locking member comprises:
 an inner sleeve sleeved onto the top of the fixing post and positioned between the moving post and the fixing post, the inner sleeve comprising a slot and a limiting member movably formed on the slot;   a plurality of adjusting recesses arranged along an axial direction of an outer surface of the moving post and combined with the slot to form a receiving room for receiving the limiting member therein;   a pushing plate installed between the inner sleeve and the fixing post, and a cavity formed between the inner sleeve and the fixing, post for the pushing plate axially sliding in the cavity to realize engagement or disengagement of the pushing plate and the slot; and wherein   in a misalignment state, the limiting member is driven by the moving, post to pass through the slot and slide into the cavity; while in a closed state, the limiting member is driven by the pushing plate to pass through the slot and fall into the receiving room.   
     
     
         10 . The electric mop as claimed in  claim 9 , wherein the limiting member is a cylindrical bar, and the adjusting recess comprises a bottom wall and a pair of sidewall respectively connected to two opposite ends of the bottom wall, with an obtuse angle formed between the bottom wall and each sidewall, a slant surface is formed at a distal end of the pushing plate and gradually inclined downward from the distal end of the pushing plate. 
     
     
         11 . An electric mop comprising:
 a handle;   a mopping member connected to the handle, the mopping member comprising a driving member with its output connecting to cleaning member, and a housing;   the housing comprising an oval cover, an oval base clasped with the cover and a receiving chamber formed between the cover and the base, the receiving chamber comprising a box for receiving the driving member therein, the box comprising an upper plate formed on the top thereof and a lower plate formed opposite to the upper plate;   the cleaning member comprising a first cleaning portion and a second cleaning portion; and   the driving member comprising a motor horizontally received in a middle portion of the box, both the upper plate and the lower plate curved outward at an installation of the motor in the box, and a driving bevel gear connected to an output shaft of the motor;   a reversing gear formed a right-angle transmission relationship with the driving bevel gear, and comprising a driven bevel gear portion and a driven cylindrical gear portion coaxially fixed with each other, the driven bevel gear portion meshed with the driving bevel gear;   a cylindrical driving gear group comprising a first cylindrical driving gear connected to the first cleaning portion and a second cylindrical driving gear connected to the second cleaning portion, each of the first and second cylindrical driving gears comprising a first horizontal ring extending upward from a corresponding upper surface thereof, with an equal-altitude gap formed between the first horizontal ring'and the upper plate; and a second horizontal ring extending downward from a middle portion of the upper plate and corresponding to the first and second cylindrical driving gears, with a same equal-altitude gap formed between the second horizontal ring and a corresponding upper surface of the first and second cylindrical driving gears;   a first cylindrical gear group with its input meshed with a side of the driven cylindrical gear portion and its output meshed with the first cylindrical driving gear;   a second cylindrical gear group with its input meshed with the other side of the driven cylindrical gear portion and its output meshed with the second cylindrical driving gear;   the difference between the number of cylindrical gears of the first cylindrical gear group and the second cylindrical gear group being singular; and wherein   when the electric mop is working, the first and second cylindrical driving gears are kept in a horizontal position by the first horizontal ring and the second horizontal ring respectively matching with the upper plate, the upper surfaces of the first and second cylindrical driving gears to ensure the first and second cleaning portions closely attached to the ground, respectively.   
     
     
         12 . The electric mop as claimed in  claim 11 , wherein each of the first cylindrical gear group and the second cylindrical gear group comprises a rack wheel and a pinion coaxially fixed with the rack wheel, both the rack wheel and the pinion are cylindrical gears, and the rack wheel is acted as a transmission input, and the pinion is acted as a transmission output. 
     
     
         13 . The electric mop as claimed in  claim 12 , wherein the first cylindrical driving gear is coordinated with the first cleaning portion via a polygonal shaft lever to engage with a shaft sleeve of the first cleaning portion, and the second cylindrical driving gear is also coordinated with the second cleaning portion via another polygonal shaft lever to engage with another shaft sleeve of the second cleaning portion; the polygonal shaft lever and a corresponding shaft sleeve are locked with each other by bolts and a bearing is arranged on the shaft lever at a position corresponding to the lower plate. 
     
     
         14 . The electric mop as claimed in  claim 13 , wherein a handle bottom portion of the handle is movably connected to the mopping member and comprises a pair of clamping portions horizontally opposite to each other, and a ballhead formed between the pair of clamping portions and rotatably connected to the pair of clamping portions by a horizontal shaft of the clamping portion inserted into a corresponding horizontal shaft hole of the ballhead; while the mopping member comprises a pair of supporting portions longitudinally opposite to each other, the pair of supporting portions rotatably connected to the ballhead by a longitudinal shaft of the supporting portion inserted into a corresponding longitudinal shaft hole; the horizontal shaft comprises a first shaft body and the longitudinal shaft comprises a second shaft body, the first shaft body inserted into the horizontal shaft hole and comprising a first annular flange at a distal end thereof, and the second shaft body inserted into the longitudinal shaft hole and comprising a second annular flange at a distal end thereof, the first and second annular flanges provided for avoiding the first shaft body from separating from the horizontal shaft hole and the second shaft body from separating from the longitudinal shaft hole. 
     
     
         15 . The electric mop as claimed to  claim 14 , wherein the handle is a telescopic structure and comprises a fixing post and a moving post sleeved onto the fixing post from a top of the fixing post, the top of the fixing post comprises a locking member for controlling a movable position of the moving post. 
     
     
         16 . The electric mop as claimed in  claim 15 , wherein the locking member comprises:
 an inner sleeve sleeved onto the top of the fixing post and positioned between the moving post and the fixing post, the inner sleeve comprising a slot and a limiting member movably formed on the slot;   a plurality of adjusting recesses arranged along an axial direction of an outer surface of the moving post and combined with the slot to form a receiving room for receiving the limiting member therein;   a pushing plate installed between the inner sleeve and the fixing post, a cavity formed between the inner sleeve and the fixing post for the pushing plate axially sliding in the cavity to realize engagement or disengagement of the pushing plate and the slot, and a slant surface formed at a distal end of the pushing plate and, gradually inclined downward from the distal end of the pushing plate; and wherein   in a misalignment state, the limiting member is driven by the moving post to pass through the slot and slide into the cavity; while in a closed state, the limiting member is driven by the pushing plate to pass through the slot and fall into the receiving room.