Abstract: A quick install nut is provided. The nut includes an entrance end, an exit end, a first threaded portion corresponding to the entrance end, a second threaded portion corresponding to the exit end and connected with the first threaded portion. The first threaded portion includes a first slot, a segment of first internal thread formed in the first slot, and a first relief space communicating with the first slot radially. The second threaded portion includes a second slot, a segment of second internal thread formed in the second slot, and a second relief space communicating with the second slot radially. The first and the second slots are disposed on a central axis in a staggered manner. A compression wall is formed on the first threaded portion. After being tilted, the nut is placed and moved along a threaded fastener and returned to achieve fast and firm fastening.

Abstract: A movable support seat for a shower head includes a holding member to receive a removable shower head; a moving member moving vertically along a post and being used to receive the holding member; the moving member having a body disposed to the post, at least one movable retaining paw axially fixed to the body, a resilient element installed to a predetermined position of the retaining paw to actuate the paw portion to elastically engage with a peripheral outer surface of the post and to position the moving member to the post such that when a pressing portion of the retaining paw is pressed, first or second abutting wall of the retaining paw disengages from the post so that the moving member is adjusted freely on the post.

Abstract: A movable support seat for a shower head includes a holding member to receive a removable shower head; a moving member moving vertically along a post and being used to receive the holding member; the moving member having a body disposed to the post, at least one movable retaining paw axially fixed to the body, a resilient element installed to a predetermined position of the retaining paw to actuate the paw portion to elastically engage with a peripheral outer surface of the post and to position the moving member to the post such that when a pressing portion of the retaining paw is pressed, first or second abutting wall of the retaining paw disengages from the post so that the moving member is adjusted freely on the post.

Abstract: A seat for fastening the curved tube of a bicycle V-type brake is composed of two connection members, a seat body, and a torsion spring. The connection members are fastened pivotally and coaxially with a first brake arm of the bicycle V-type brake by a first pivot. The seat body is fastened pivotally with the connection members by a second pivot and is provided with a first retaining portion. The seat body has an end plate, which is fastened with one end of the curved tube. The torsion spring is fitted over the second pivot such that one end of the torsion spring urges the first pivot, and that another end of the torsion spring urges the first retaining portion of the seat body. When the brake cable is triggered, the first brake arm and the second brake arm are actuated to cause the brake shoes to make contact with the wheel rim. In the meantime, the seat body is caused to swivel by a reaction force which is brought about by the brake cable and is greater than the torsional force of the torsion spring.