Base ring assembly for a pneumatic vacuum elevator and a method thereof

A method for forming a base ring assembly for a pneumatic vacuum elevator comprising:

• forming an arc shaped base ring by an aluminum die casting, wherein the arc shaped base ring comprises at least four parts;
• locating an L-shaped clamp on grooves of the arc shaped base ring, wherein the L-shaped clamp comprises at least four parts, wherein the L-shaped clamp is configured to hold a rubber beading rib of an external cylinder assembly;
• coupling the at least four parts of the arc shaped base ring with each other using at least four connectors and a corresponding one or more rivet nuts to create a full round base ring;
• and
• affixing the arc shaped base ring with L-shaped clamp using a plurality of fasteners.

A pneumatic vacuum elevator comprising:

• an external cylinder assembly comprising an elevator cabin inserted therein;
• a polycarbonate sheet configured to cover the external cylinder assembly;
• and
• a base ring assembly mechanically coupled to the polycarbonate sheet, wherein the base ring assembly is configured to assist resting another external cylinder assembly on and above, wherein the base ring assembly comprises:
• an arc shaped base ring comprises at least four parts, wherein the arc shaped base ring is composed by an aluminum die casting;
• an L-shaped clamp comprises at least four parts, wherein the at least four parts of the L-shaped clamp are located on grooves of the corresponding at least four parts of the arc shaped base ring,
• wherein the L-shaped clamp is configured to hold a rubber beading rib of an external cylinder assembly;
• at least four connectors and a corresponding one or more rivet nuts configured to couple the at least four parts of the arc shaped base ring with each other to create a full round base ring;
• and
• a plurality of fasteners configured to affix the arc shaped base ring with L-shaped clamp.