seat can simplify the manufacturing procedure and product assembly as well as reduce the manufacturing cost application_number US 42000406 A description with reference to fig1 3 an air pump nozzle in accordance with a preferred embodiment of the present invention comprises a housing 1 a cap 2 a block assembly seat 3 a needle tube 4 and a block member 5 each of the aforementioned components includes a first end and a second end the first ends are defined with the same orientation while the second ends are defined with the orientation opposite to the first ends the housing 1 is not limited to any material for manufacturing but metal is preferred for strength and hardness considerations the first end of the housing 1 is provided with an inflation hole an inner periphery of the inflation hole is provided with a first inner thread 11 for engaging with an outer thread of the inflation valve of an inflatable object as shown in fig3 the housing 1 is provided at the second end thereof with an inner space 10 which is in communication with the inflation hole the diameter of the inner space is greater than that of the inflation hole the inner space 10 is provided at the end of the inner periphery thereof with a second inner thread 12 the cap 2 is provided at the first end with an outer thread 21 which is in pair with the second inner thread 12 and a through hole 20 at a center thereof which extends from the first end through the second end the block assembly seat 3 may be manufactured with any material with proper strength and hardness.