90-degree bend channel of optical fiber channel

The utility model relates to the technical field of optical fiber wiring installation design, in particular to a 90-degree bend channel of an optical fiber channel, which comprises a body, and the body comprises a bend channel body and two linear channel bodies which are respectively arranged at two side end parts of the bend channel body and are communicated with the bend channel body. The first wiring bottom plate is in a right-angle fan shape, the edge, close to one side of the circle center, of the first wiring bottom plate is in a right-angle shape, the corner piece is arranged on the right-angle side of the first wiring bottom plate and is in a right-angle shape, and the arc-shaped plate is matched with the arc-shaped side of the first wiring bottom plate and extends upwards. The linear groove body comprises a second wiring bottom plate connected with the first wiring bottom plate and at least one side plate arranged on the second wiring bottom plate; the top of the arc-shaped plate and/or the top of th