Abstract: A bicycle tracker mounting assembly is provided. The bicycle tracker mounting assembly includes a connection unit mounted on an inner wall of a bicycle tube. The connection unit includes a first shift block, a second shift block, a first carrier, a second carrier, and a positioning member. The first shift block and the second shift block have a first guiding surface and a second guiding surface, respectively. The first guiding surface and the second guiding surface are complementary to each other. The positioning member passes through the first shift block and the second shift block, and the connection unit is configured to be fixed to the inner wall of the bicycle tube or disengaged from the inner wall of the bicycle tube by rotating the positioning member to displace the first shift block and the second shift block.

Abstract: Cribbing apparatus for stabilizing a post-accident vehicle against unwanted shifting of the vehicle during a rescue operation in which a victim trapped in the vehicle is to be extricated from the vehicle includes cribbing blocks hinged together for pivotal movement to fill a space between the vehicle and the ground at the site of an accident. A wedge is inserted between the pivotally connected cribbing blocks for operating the cribbing apparatus without jolts and dislocations which otherwise could cause shifting and concomitant increased danger of injury to the victim, as well as to a rescuer. A hinge includes leaves and wings in U-shaped configurations which deter skewing of the cribbing blocks during pivotal movements. The cribbing blocks include grooves for reception of the wedge such that skewing or collapse of the wedge is deterred by virtue of the confined movement of the wedge within the grooves during operation of the cribbing apparatus.

Abstract: Provided is a plumbing device for plumbing and connection of a long member, at the time of installation vertically of the long member on an upper end of a lower member, which is used for plumbing the installed long member to connect with the lower member.