Rotary bathtub grab-bar chair

Abstract

A rotary bathtub grab-bar chair includes a base body, a rotary base, and a seat. A fixed board is provided on the base body and is threadedly provided with a threaded rod. A moving block is threadedly connected to the threaded rod and is connected with a clip board. The clip board and the fixed board are movable toward each other by rotating the threaded rod. The base body further has annularly arranged and equally spaced bolt holes. The rotary base is coupled to, and rotatable but limited in movement with respect to, the base body and includes a bolt tube to correspond to any of the bolt holes. A bolt can move in the bolt tube and be movably engaged in any of the bolt holes. The seat is coupled to the rotary base and has openings. One can enter a bathtub easily while seated on the seat.

1 . A rotary bathtub grab-bar chair, comprising:
 a base body provided with a fixed board, wherein the fixed board is threadedly provided with a threaded rod, the threaded rod is threadedly connected with a moving block, and the moving block is connected with a clip board such that the clip board and the fixed board are movable toward each other by rotating the threaded rod, the base body being further provided with a position-limiting member, the position-limiting member being fixed to a limiting base by a plurality of first threaded connection elements, the limiting base being fixed on the base body and provided with a plurality of bolt holes;   a rotary base coupled to the base body and limited in movement with respect to the base body, the position-limiting member being mounted around, and located at a periphery of, the rotary base, the rotary base being captured by the position-limiting member to maintain direct slidable contact against the limiting base, the rotary base being thereby rotatable with respect to the base body, the rotary base being provided with a bolt tube to correspond to selected ones of the bolt holes,   wherein a bolt movably disposed in the bolt tube to engage selected ones of the bolt holes, and is mounted with a spring and a lever, the lever being pivotally connected to the bolt by a pin to move the bolt vertically and elastically in the bolt tube, the rotary base being further provided with a supporting portion; and   a seat coupled to the rotary base, the seat being provided with a supporting block, the supporting block being fixedly coupled to the supporting portion by a plurality of second threaded connection elements, the seat being further provided with at least one opening.   
     
     
         2 . The rotary bathtub grab-bar chair of  claim 1 , wherein the threaded rod is provided with a rotating handle. 
     
     
         3 . The rotary bathtub grab-bar chair of  claim 1 , wherein the rotary base includes spring is disposed within the bolt tube is further provided with a backrest. 
     
     
         4 . The rotary bathtub grab-bar chair of  claim 1 , wherein the bolt tube receives a portion of the bolt therein and defines an enclosure structure about the received portion of the bolt, the spring being captured within the enclosure structure of the bolt tube to engage the received portion of the bolt.