Patent ID: 9669650
Date: 2017-06-06
CPC Classifications: B43L,G09B

Claim:
1. A whiteboard comprising: a panel; four rims; four connectors; said panel being a rectangle; said panel comprising a writable pre-coating layer located on top thereof, a foaming layer located in the middle thereof and a back plate located on bottom thereof; a number of square holes being bored in a row at the edge of the back plate; said each rim of the four rims having the same structure; said each rim comprising a rim main body and a number of locking pieces; said rim main body comprising a top plate, a light filter plate, an upper plate, a side plate and a number of locking holes; said upper plate being under the top plate; said light filter plate being connected between an end of the top plate and an end of the upper plate by melting; said side plate and the upper plate being vertical; an inserting plate being vertically extended outwards from the side plate; a number of barbed bars being extended from a distal end of the inserting plate; a locking plate being vertically extended downwards from a rear end of the inserting plate; a number of toothed bars being extended from the locking plate; said locking pieces being locked at lower ends of the locking plates; each of said locking pieces comprising a connecting portion at the upper position thereof; said connecting portion being hollow; a number of toothed grooves being defined on an inner wall of the connecting portion; a supporting portion being formed at a lower end of the connecting portion; said each connector of the four connectors having the same structure; said each connector comprising a bottom casing and a top casing; said bottom casing comprising a bottom casing main body; a first linking portion being located at one side of the bottom casing main body; a first fixing plate being vertically extended upwards from the edge of the first linking portion; a number of first screw holes being bored on the first fixing plate, which are corresponding to the locking holes of the rim; a second linking portion being located at the other side of the bottom casing main body; a second fixing plate being vertically extended upwards from the edge of the second linking portion; a number of second screw holes being bored on the second fixing plate, which are corresponding to the locking holes of the rim; said top casing comprising a top cover; a lateral plate being downwards bent and extended from the outer edge of the top cover; a sealing strip being pasted at the position of the inner edge of the sealing strip contacting the writable pre-coating layer.