Abstract: A bollard assembly having a post and a sleeve. The post has a cylindrical post wall forming a cavity, an insert included with in the cavity and a longitudinal passage in the post wall. The insert has a helical wedge at its lower end with a gap in the wedge. The sleeve has a cylindrical sleeve wall forming a cavity and a latch pin that is attached to the sleeve wall and extends into the cavity. The sleeve is adapted to receive the post such that the latch pin travels through the passage in the post wall and the gap in the wedge of the insert wherein the insert can then be rotated such that the latch pin and gap are no longer aligned and the latch pin prevents upward movement of the insert and post.

Abstract: A post assembly having a first post member, a second post member positioned within the first post member, and a sleeve member installed in the ground. The first and second post members are insertable into the sleeve member and the second post member is rotatable relative to the first post member and the sleeve member to inhibit separation of the first post member and the second post member from the ground sleeve. The first post member includes a first passage, the second post member includes a second passage having a first section and a second section, and the sleeve member includes a latch pin that travels along the first and second passages. When the latch pin is in a particular position within the first and second passages, removal of the first post member and the second post member from the sleeve member is inhibited.

Abstract: A post assembly having a first post member, a second post member positioned within the first post member, and a sleeve member installed in the ground. The first and second post members are insertable into the sleeve member and the second post member is rotatable relative to the first post member and the sleeve member to inhibit separation of the first post member and the second post member from the ground sleeve. The first post member includes a first passage, the second post member includes a second passage having a first section and a second section, and the sleeve member includes a latch pin that travels along the first and second passages. When the latch pin is in a particular position within the first and second passages, removal of the first post member and the second post member from the sleeve member is inhibited.