Flat mop

Abstract

Disclosed is a flat mop, including a mop rod assembly and a mop head assembly arranged at one end of the mop rod assembly. Moving members available for synchronously unfolding outwards or folding inwards are slidably mounted at two sides of the mop head assembly. The mop head assembly includes a mounting housing and a cloth clamping plate for clamping a wiping cloth; sliding chambers for sliding of the moving members are formed between the mounting housing and the cloth clamping plate, and side plates for cooperating with the cloth clamping plate to clamp the wiping cloth are arranged at lower ends of the moving members. The present disclosure provides a flat mop, which makes it easier for the side plates and the cloth clamping plate to clamp the wiping cloth, thus ensuring the wiping cloth to be clamped more firmly.

What is claimed is: 
     
         1 . A flat mop, comprising a mop rod assembly ( 1 ) and a mop head assembly ( 2 ) arranged at one end of the mop rod assembly ( 1 ), wherein the mop head assembly ( 2 ) comprises a mounting housing ( 2 . 1 ), a cloth clamping plate ( 2 . 3 ) for clamping a wiping cloth, and moving members ( 2 . 2 ) available for synchronously unfolding outwards or folding inwards and slidably mounted at two sides of the mop head assembly ( 2 ); a cloth clamping space is formed by inner side ends of the moving members ( 2 . 2 ) and an outer side end of the cloth clamping plate ( 2 . 3 ); when the wiping cloth is clamped, the moving members ( 2 . 2 ) can be unfolded obliquely downward to the outside; and after the wiping cloth is driven, the moving members ( 2 . 2 ) retract obliquely upward and inward to allow the wiping cloth to be clamped. 
     
     
         2 . The flat mop according to  claim 1 , wherein the mop rod assembly ( 1 ) comprises a universal joint ( 1 . 3 ), a straight rod ( 1 . 1 ), and a protective casing ( 1 . 4 ) sleeved on a lower end of the straight rod ( 1 . 1 ), an upper end of the universal joint ( 1 . 3 ) is hinged to the protective casing ( 1 . 4 ), and a lower end of the universal joint ( 1 . 3 ) is hinged to the mounting housing ( 2 . 1 ); a lower end of the protective casing ( 1 . 4 ) is provided with first positioning protrusion blocks ( 1 . 4 . 1 ) for left and right centering positioning; and the lower end of the universal joint ( 1 . 3 ) is provided with second positioning protrusion blocks ( 1 . 8 ) for front and rear centering positioning. 
     
     
         3 . The flat mop according to  claim 1 , wherein sliding chambers for sliding of the moving members ( 2 . 2 ) are formed between the mounting housing ( 2 . 1 ) and the cloth clamping plate ( 2 . 3 ), and side plates ( 2 . 4 ) for cooperating with the cloth clamping plate ( 2 . 3 ) to clamp the wiping cloth are arranged at lower ends of the moving members ( 2 . 2 ); the mounting housing ( 2 . 1 ) is provided with guiding convex edges ( 2 . 1 . 1 ) downward; when the wiping cloth is clamped, the moving members ( 2 . 2 ) drive the side plates ( 2 . 4 ) to unfold outwards, and the guide convex edges ( 2 . 1 . 1 ) press against the moving members ( 2 . 2 ) to tilt the side plates ( 2 . 4 ), so as to allow lower edges of the side plates ( 2 . 4 ) to be lower than the cloth clamping plate ( 2 . 3 ), so that the cloth clamping space is formed by inner side ends of the side plates ( 2 . 4 ) and the outer side end of the cloth clamping plate ( 2 . 3 ). 
     
     
         4 . The flat mop according to  claim 3 , wherein the moving members ( 2 . 2 ) are provided with avoiding grooves ( 2 . 2 . 2 ) corresponding to the guiding convex edges ( 2 . 1 . 1 ); and when the wiping cloth is clamped, the moving members ( 2 . 2 ) drive the side plates ( 2 . 4 ) to unfold outwards, and the guiding convex edges ( 2 . 1 . 1 ) are detached from the avoiding grooves ( 2 . 2 . 2 ). 
     
     
         5 . The flat mop according to  claim 3 , wherein the mop rod assembly ( 1 ) comprises a rotating drive mechanism for connecting the moving members ( 2 . 2 ), and the rotating drive mechanism comprises a rotating gear ( 1 . 2 ) connected to the mop rod assembly ( 1 ), and racks ( 2 . 2 . 1 ) arranged on the moving members ( 2 . 2 ), the racks ( 2 . 2 . 1 ) being engaged with the rotating gear ( 1 . 2 ). 
     
     
         6 . The flat mop according to  claim 5 , wherein the mop rod assembly ( 1 ) comprises a twist rod ( 1 . 5 ) and a connecting piece ( 1 . 6 ); the twist rod ( 1 . 5 ) drives the rotating gear ( 1 . 2 ) to rotate, and the twist rod ( 1 . 5 ) is fitted in the straight rod ( 1 . 1 ) of the mop rod assembly ( 1 ); and a lower end of the twist rod ( 1 . 5 ) is hinged to the rotating gear ( 1 . 2 ) by way of the connecting piece ( 1 . 6 ), and the rotating gear ( 1 . 2 ) is driven to rotate by an up and down movement of the straight rod ( 1 . 1 ) of the mop rod assembly ( 1 ). 
     
     
         7 . The flat mop according to  claim 5 , wherein the mop rod assembly ( 1 ) comprises a connecting piece ( 1 . 6 ); the straight rod ( 1 . 1 ) is directly hinged to the rotating gear ( 1 . 2 ) by way of the connecting piece ( 1 . 6 ); and the rotating gear ( 1 . 2 ) is driven to rotate by rotating the straight rod ( 1 . 1 ). 
     
     
         8 . The flat mop according to  claim 1 , wherein the moving members ( 2 . 2 ) comprise transverse guide grooves ( 2 . 2 . 3 ), and guide protrusion blocks ( 2 . 2 . 4 ) cooperated with the transverse guide grooves ( 2 . 2 . 3 ); and the guide protrusion block ( 2 . 2 . 4 ) of the adjacent moving member ( 2 . 2 ) is arranged in the transverse guide groove ( 2 . 2 . 3 ) of the other moving member ( 2 . 2 ). 
     
     
         9 . The flat mop according to  claim 8 , wherein a reset slot ( 2 . 2 . 4 . 1 ) is provided inside each of the guide protrusion blocks ( 2 . 2 . 4 ), the mop head assembly ( 2 ) comprises elastic members ( 2 . 5 ), the mounting housing ( 2 . 1 ) comprises limit blocks ( 2 . 1 . 2 ), the elastic members ( 2 . 5 ) are arranged inside the reset slots ( 2 . 2 . 4 . 1 ), one end of the elastic member ( 2 . 5 ) abuts against an inner side wall surface of the reset slot ( 2 . 2 . 4 . 1 ), and the other end of the elastic member ( 2 . 5 ) abuts against a wall surface of the limit block ( 2 . 1 . 2 ). 
     
     
         10 . The flat mop according to  claim 9 , wherein the limit blocks ( 2 . 1 . 2 ) comprise first positioning columns ( 2 . 1 . 2 . 1 ) arranged on the wall surfaces of the limit blocks ( 2 . 1 . 2 ), the guide protrusion blocks ( 2 . 2 . 4 ) comprise second positioning columns ( 2 . 2 . 4 . 2 ) arranged on inner side end faces of the reset slots ( 2 . 2 . 4 . 1 ), and the two ends of the elastic members ( 2 . 5 ) are respectively sleeved on the first positioning columns ( 2 . 1 . 2 . 1 ) and the second positioning columns ( 2 . 2 . 4 . 2 ). 
     
     
         11 . The flat mop according to  claim 1 , wherein first tooth portions ( 2 . 3 . 1 ) are respectively provided at two opposite sides of the cloth clamping plate ( 2 . 3 ), and second tooth portions ( 2 . 4 . 1 ) cooperated with the first tooth portions ( 2 . 3 . 1 ) are provided on the side plates ( 2 . 4 ). 
     
     
         12 . The flat mop according to  claim 11 , wherein the second tooth portions ( 2 . 4 . 1 ) comprise bulge portions ( 2 . 4 . 1 . 1 ) protruding downwards, and the bulge portions ( 2 . 4 . 1 . 1 ) are inclined from inner sides to outer sides. 
     
     
         13 . The flat mop according to  claim 2 , wherein the universal joint ( 1 . 3 ) is provided with first positioning grooves ( 1 . 7 ) matched with the first positioning protrusion blocks ( 1 . 4 . 1 ); when the universal joint ( 1 . 3 ) and the protective casing ( 1 . 4 ) are coaxially arranged, the first positioning protrusion blocks ( 1 . 4 . 1 ) are accommodated in the first positioning grooves ( 1 . 7 ); an upper end face of the mounting housing ( 2 . 1 ) is provided with second positioning grooves ( 2 . 1 . 4 ) matched with the second positioning protrusion blocks ( 1 . 8 ); and when the universal joint ( 1 . 3 ) and the mounting housing ( 2 . 1 ) are coaxially arranged, the second positioning protrusion blocks ( 1 . 8 ) are accommodated in the second positioning grooves ( 2 . 1 . 4 ). 
     
     
         14 . The flat mop according to  claim 5 , wherein the rotating gear ( 1 . 2 ) comprises a connecting portion ( 1 . 2 . 1 ) connected to the mop rod assembly ( 1 ), the mounting housing ( 2 . 1 ) is provided with a connecting hole ( 2 . 1 . 5 ) for allowing the connecting portion ( 1 . 2 . 1 ) to pass through, buckling pieces ( 1 . 2 . 2 ) are arranged on a side wall of the connecting portion ( 1 . 2 . 1 ), and an edge of the connecting hole ( 2 . 1 . 5 ) is provided with buckling grooves ( 2 . 1 . 6 ) for allowing the buckling pieces ( 1 . 2 . 2 ) to pass through; when the positions of the buckling pieces ( 1 . 2 . 2 ) are aligned with those of the buckling grooves ( 2 . 1 . 6 ), the connecting portion ( 1 . 2 . 1 ) passes through the connecting hole ( 2 . 1 . 5 ), and the rotating gear ( 1 . 2 ) is rotated to make the buckling pieces ( 1 . 2 . 2 ) deviate from the buckling grooves ( 2 . 1 . 6 ); and lower end faces of the buckling pieces ( 1 . 2 . 2 ) abut against the upper end face of the mounting housing ( 2 . 1 ).