| 摘要 |
<p>A casing mechanism of a circular saw includes a housing (1) provided with parts in it, a saw blade (2) provided on the top of the housing (1), a part of which is in the housing (1), and the other part of which is out of the housing (1), and a cover (3) provided on the housing (1) for enclosing the blade (2). The blade (2) can extend out of the cover (3) through a narrow and long hole (4) which is provided on the end face of the cover (3), and an end of the cover (3) is pivotally joined to the top end of the housing (1). A position-limiting mechanism for the cover (3) can also be provided on the housing (1). In the invention, because the cover (3) is pivotally jointed to the housing (1), the fitting structure between the cover (3) and the housing (1) is simple, and the operation for moving the cover (3) is very simple and convenient. Just under working pressure, the cover (3) can turn so as to make the blade (2) extend out of the cover (3) to cut, and the cutting depth of the circular saw can be ensured to be accurate due to the position-limiting mechanism of the cover (3).</p> |
