Vacuum cleaner nozzle and vacuum cleaner set with the vacuum cleaner nozzle

Abstract

A vacuum cleaner nozzle is connectable to a vacuum cleaner via a connection hose to form an airflow passage of a vacuum cleaner set. The vacuum cleaner nozzle is composed of multiple pieces. The configuration of the vacuum cleaner nozzle is at least changeable between a large-area sucking mouth and a small-area slit-like sucking mouth according to the actual operation conditions of different environments to be cleaned. Therefore, it is no more necessary to frequently replace the vacuum cleaner nozzles and the vacuum cleaner can be more conveniently used.

1 . A vacuum cleaner nozzle comprising:
 a main body;   a connection section positioned on one side of the main body;   at least one sucking mouth positioned on the other side of the main body; and   at least one airflow passage extending from the sucking mouth through the main body to the connection section, the vacuum cleaner nozzle being characterized in that the main body has at least two pieces, each piece having a mating face on one side and a connection end at one end, the connection ends being in adjacency to each other and movably connected to the connection section, the vacuum cleaner nozzle further comprising a joint section positioned between the connection ends of the two pieces and the connection section, whereby the two pieces can be pivotally rotated around the joint section between an unfolded position and a folded position, when the two pieces are positioned in the unfolded position, the connection ends of the two pieces attaching to and abutting against each other, whereby the sucking mouth is positioned on the mating faces of the two pieces, when the two pieces are positioned in the folded position, the mating faces of the two pieces being mated with each other, whereby the sucking mouth is positioned at the other ends of the mated pieces, which ends are distal from the joint section.   
     
     
         2 . The vacuum cleaner nozzle as claimed in  claim 1 , wherein the joint section has a tubular shaft body formed with multiple holes, the shaft body being positioned at one end of the connection section, which end is connected with the main body, at least one first pivot ring being coaxially fitted on and pivotally connected with the shaft body, one side of the first pivot ring being fixedly connected with the connection end of one of the pieces, at least one second pivot ring being coaxially fitted on and pivotally connected with the shaft body, one side of the second pivot ring being fixedly connected with the connection end of the other of the pieces. 
     
     
         3 . The vacuum cleaner nozzle as claimed in  claim 2 , wherein the main body has two sinks respectively formed on the mating faces of the two pieces, the sinks communicating with each other via the shaft body. 
     
     
         4 . The vacuum cleaner nozzle as claimed in  claim 1 , wherein the joint section has two tubular shaft bodies in parallel to each other, the shaft bodies being positioned at one end of the connection section, which end is connected with the main body, the connection ends of the two pieces being respectively pivotally connected to the corresponding shaft bodies. 
     
     
         5 . The vacuum cleaner nozzle as claimed in  claim 4 , wherein the main body has two sinks respectively formed on the mating faces of the two pieces, the sinks respectively communicating with internal holes of the shaft bodies. 
     
     
         6 . The vacuum cleaner nozzle as claimed in  claim 4 , wherein each of the pieces of the main body has a predetermined length and the connection end is positioned at one end of the corresponding piece. 
     
     
         7 . The vacuum cleaner nozzle as claimed in  claim 6 , wherein when the pieces are positioned in the folded position, the sucking mouth is positioned at the other ends of the pieces. 
     
     
         8 . The vacuum cleaner nozzle as claimed in  claim 6 , wherein the main body has two sinks respectively formed on the mating faces of the two pieces, the sinks extending to the other ends of the pieces to form openings. 
     
     
         9 . The vacuum cleaner nozzle as claimed in  claim 4 , further comprising a drive section having two hollow rotary collars coaxial with the shaft bodies, one end of each rotary collar being engaged with an adjacent piece, the drive section further having a pull cord for an operator to pull so as to drive and rotate the rotary collars, whereby the pieces engaged with the rotary collars can synchronously rotate from the unfolded position to the folded position. 
     
     
         10 . The vacuum cleaner nozzle as claimed in  claim 9 , wherein the drive section further includes two ratchet rings respectively annularly disposed around the rotary collars and a ratchet rack positioned between the ratchet rings and engaged therewith, one end of the ratchet rack being connected to the pull cord, the drive section further including a compression spring, one end of the compression spring abutting against the ratchet rack, while the other end of the compression spring abutting against the connection section, whereby the compression spring can apply an elastic force to the ratchet rack. 
     
     
         11 . The vacuum cleaner nozzle as claimed in  claim 9 , wherein the drive section further includes an extension cord, two ends of the extension cord being respectively fixedly connected to the rotary collars, a middle section of the extension cord being connected to the pull cord, the drive section further including two coiled springs respectively coaxially fitted on the corresponding rotary collars, one end of each coiled spring being fixedly connected to the rotary collar, while the other end of the coiled spring being fixedly connected to the connection section, whereby the coiled springs can apply elastic force to the rotary collars. 
     
     
         12 . A vacuum cleaner set comprising the vacuum cleaner nozzle as claimed in  claim 1 , a vacuum cleaner and a connection hose.