Dropping head for wash basin or bathtub

Abstract

A dropping head for a wash basin or a bath basin includes a base which is installed with an upper and a lower filter disk which are detachable for cleaning or updating. Cleaning grains can be placed between the upper filter disk and the lower filter disk. Cleaning material in the cleaning grains is released with draining water so as to have the function of odor-proof and cleanness of the pipes. A periphery of the outer threads of the base is sequentially engaged with an upper, a lower and a hard plastic washer and a first nut for locking the base to a water drain hole of a basin. A rubber washer installed between the two second nuts and they further encircles a periphery of the base for adjusting the outer diameter of the base to tightly resist against an inner wall of a tube connect thereto.

1 . A dropping head for a wash basin or a bathtub, comprising:
 a base having a T shape cross section; a top thereof having a flange; an interior of the base being hollowed for draining water; an inner middle section of the base being formed with a bridge; a center of the bridge being formed with a hollow cylinder; a center of the hollow cylinder being a penetrating hole;   a resilient press unit installed within the base; a lower wall of the resilient press unit being a smooth wall and having a resisting edge at a middle section thereof; a size of the resisting edge being greater than an inner radius of a hollow cylinder so that the resilient press unit passes through the penetrating hole of the hollow cylinder and the resisting edge of the resilient press unit resisting against an upper edge of the hollow cylinder to be fixed to bridge of the base; as a result, an object connected to a top of the resilient press unit being axially movable within the base; and   a water blocking cover set; a bottom of the water blocking cover set being combined and fixed to the top of the resilient press unit.   
     
     
         2 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , wherein a lower section of the base is sequentially installed with an outer threads and an inner threads; a periphery of the outer threads being engaged with an upper rubber washer, a lower rubber washer, a hard plastic washer and a first nut for locking the base to a water drain hole of a basin; and the inner threads serving for engaging with threads of a tube connected thereto. 
     
     
         3 . The dropping head for a wash basin or a bathtub as claimed in  claim 2 , wherein in application, the upper rubber washer and lower rubber washer clamps the basin; the hard plastic washer being installed below the lower rubber washer and the nut serves to tighten the lower rubber washer and the hard plastic washer. 
     
     
         4 . The dropping head for a wash basin or a bathtub as claimed in  claim 3 , wherein two second nuts and a rubber washer are arranged around an outer wall of the outer threads; the rubber washer installed between the two second nuts; in using, the two second nuts tightly clamp the rubber washer so that the rubber washer expands outwards to increase a outer diameter of the base; the expansion of the rubber washer is adjustable by adjusting a distance between the two second nuts; and
 in application, the base is installed in to the basin, then the lower end of the base is inserted into a tube; the expanded rubber washer is adjustable by adjusting the distance between the two second nuts and thus it will tightly resist against the inner wall of the tube so as to fix the base to the tube.   
     
     
         5 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , wherein
 a half lower outer section of the base is formed with outer threads;   two second nuts and a rubber washer are arranged around an outer wall of the outer threads; the rubber washer installed between the two second nuts; in using, the two second nuts tightly clamp the rubber washer so that the rubber washer expands outwards to increase the outer diameter of the base; the expansion of the rubber washer is adjustable by adjusting a distance between the two second nuts; and   in application, the base is installed in to the basin, then the lower end of the base is inserted into a tube; the expanded rubber washer is adjustable by adjusting the distance between the two second nuts and thus it will tightly resist against the inner wall of the tube so as to fix the base to the tube.   
     
     
         6 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , further comprising:
 a lower filter disk installed upon the resisting edge of the resilient press unit, and the lower rubber washer having a plurality of holes for filtering the undesired particles in the liquid flowing therethrough.   
     
     
         7 . The dropping head for a wash basin or a bathtub as claimed in  claim 6 , further comprising:
 an upper filter disk installed around the resilient press unit and above the lower filter disk; the upper filter disk having a plurality of holes for filtering particles in the liquid flowing therethrough; and   the hole size of the holes of the upper filter disk being greater than that of the lower filter disk so that large particles are firstly filtered by the upper filter disk and small particles are then filtered by the lower filter disk so that the flow is cleaned and has less undesired particles.   
     
     
         8 . The dropping head for a wash basin or a bathtub as claimed in  claim 7 , further comprising:
 a plurality of cleaning grains installed between the lower filter disk and the upper filter disk; the cleaning grains release some cleaning material to cause the space between the upper filter disk and the lower filter disk to have no undesired smell.   
     
     
         9 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , wherein a lower section of the base is installed with outer threads or inner threads, or the combination of the two. 
     
     
         10 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , wherein a half section of an inner side of the base is formed with inner thread for engaging with threads of a tube connected thereto. 
     
     
         11 . The dropping head for a wash basin or a bathtub as claimed in  claim 1 , further comprising:
 a water blocking cover set including a cover and a water blocking rubber washer; a lower side of the cover is formed with a plurality of posts and a plurality of screw holes for engaging with a short screw rod at an upper end of the resilient press unit.   
     
     
         12 . The dropping head for a wash basin or a bathtub as claimed in  claim 11 , wherein an outer edge of the cover is formed with an annular trench. 
     
     
         13 . The dropping head for a wash basin or a bathtub as claimed in  claim 11 , wherein the water blocking rubber washer is expanded with a thin sheet.