Patent ID: 9630313
Date: 2017-04-25
CPC Classifications: B25H

Claim:
1. A display board with at least one socket, the at least one socket including a connecting end and a working end, the connecting end for assembling with a driving tool and including a positioning hole, the positioning hole including a large-diameter hole and a small-diameter hole which are continuous from outside to inside, the display board comprising: a main body, formed with a hanging portion at one end, at least one side of the main body formed with an assembling portion, the assembling portion including at least one stepped engagement portion protrudedly formed on a surface of the main body, the stepped engagement portion being inserted in the positioning hole, the stepped engagement portion including a large-diameter engagement portion protrudedly formed on the surface of the main body and a small-diameter portion coaxially and protrudedly formed on the large-diameter engagement portion, the large-diameter engagement portion including a first lateral surface on an outer circumferential surface thereof, the small-diameter portion including a second lateral surface on an outer circumferential surface thereof; wherein the large-diameter engagement portion and the small-diameter portion of the stepped engagement portion are inserted in the positioning hole, the first lateral surface corresponds to and is releasably tightly engaged with an inner wall of the large-diameter hole, the second lateral surface corresponds to and is located within the small-diameter hole, and a gap is formed between the second lateral surface and an inner wall of the small-diameter hole; wherein the stepped engagement portion further includes an inner hole engagement portion coaxially and protrudedly formed on the small-diameter portion, the inner hole engagement portion includes a third lateral surface on an outer circumferential surface thereof, the positioning hole further includes an inner hole communicated with and continuous from the small-diameter hole, the inner hole engagement portion is releasably inserted in the inner hole, and the third lateral surface corresponds to and is releasably tightly engaged with an inner wall of the inner hole; wherein the small-diameter hole is smaller than the large-diameter hole in diameter and larger than the inner hole in diameter, and the small-diameter portion is smaller than the large-diameter engagement portion and larger than the inner hole engagement portion.