The present utility model is related to a mowing appliance capable of preventing twining and clogging with something unexpected. The mowing appliance comprises a panel and a plurality of projections. The panel comprises an upper surface, a bottom surface, a connected aperture, a plurality of cutting-tool holes and a plurality of vents. The connected aperture located in the center of the panel communicates with the upper surface and the bottom surface. It’s able to combine the panel with a transmitter of a mowing device. The cutting-tool holes are located in the bottom surface. The vents located in the circumference of the panel communicate with the cutting-tool holes. The projections are located in the upper surface and/or the bottom surface. While the mowing appliance is horizontally rotating, the projections turn into a blocked wall to prevent the chink between the panel and the transmitter from clogging.本創作關於一種可預防外來物纏繞卡住之割草器具。該割草器具包含一盤體以及複數凸部。該盤體具有一上表面、一下表面、一連接孔、複數刀具孔以及複數開口，其中該連接孔係位於該盤體之中心處，該連接孔連通該盤體之該上表面與該下表面，並且用以將該盤體連接至一割草裝置之傳動件，該複數刀具孔係位於該盤體之該下表面，該複數開口係位於該盤體之周緣，且該複數刀具孔與該複數開口彼此相互連通。該複數凸部係設於該盤體之該上表面及∕或該下表面，隨著該割草器具的水平轉動，形成一道防堵牆，用以保護該割草器具與該傳動件之間的縫隙。
