Electronic Board

摘要

An electronic board comprises a panel, four rims and four connectors. The panel comprises a writable pre-coating layer, a foaming layer and a back plate. The each rim comprises a rim main body and a number of locking pieces. The rim main body comprises a top plate, a light filter plate, an upper plate, a side plate. The light filter plate is connected between the top plate and the upper plate by method for melting. An inserting plate is vertically extended outwards from the side plate. A locking plate is vertically extended downwards from the rear end of the inserting plate. The locking pieces are locked at the lower ends of the locking plates. The each locking piece comprises a connecting portion at the upper position thereof. A supporting portion is formed at the lower end of the connecting portion. The each connector comprises a bottom casing and a top casing. The bottom casing comprises a bottom casing main body. The top casing comprises a top cover. A lateral plate is downwards bent and extended from the outer edge of the top cover. A sealing strip is pasted at the position of the inner edge of the sealing strip contacting the writable pre-coating layer.

主权项

1. An electronic board 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 the end of the top plate and the end of the upper plate by method for 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 the distal end of the inserting plate; a locking plate being vertically extended downwards from the rear end of the inserting plate; a number of toothed bars being extended from the locking plate; said locking pieces being locked at the lower ends of the locking plates; said each locking piece comprising a connecting portion at the upper position thereof; said connecting portion being hollow; a number of toothed grooves being defined on the inner wall of the connecting portion; a supporting portion being formed at the 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.