TONS of inspiration.
Ya know, Zorro's legendary black stallion.....Tornado, served as more or less the inspiration that Batman needed this black namesake vehicle (since cars were in, horses were out).....thus, Batmobile.
Also.....the enterance to the Fox's, Zorro, underground hideout (which was underneath his mansion too) was through a Grandfather Clock.
Lots of inspirations of the (then) Pop culture world and pop magazines went into creating Batman.
Good call too, Bats, on the Shadow too. Lots of people don't even know that.