| 摘要 |
<p>Filtering apparatus (1) comprising a filter vessel (2), a cover (3) and fastening means for fastening or clenching the cooperating contact surfaces (4, 5) of the vessel and the covey to each other fogy the closing of the cover, whereby the cover is connected to an arm (6) which is rotatably mounted to the filter vessel and by means of which the cover can be lifted from the filter vessel and can be swung aside, characterized in that the cover (3) is connected to the arm (6) by means of a supporting part (7) which is fixedly connected to the arm and which is provided with a supporting plate (8) having an opening (9) though which a god shaped part (10) is led, which rod shaped part at its bottom outer end (12) is fixedly connected to the cover (3) and with its upper outer end (14) is fixedly connected to a holder plate (15) provided above the supporting plate, while in the space (16) between the supporting plate and the holder plate a spring (17) is provided with a lead-through (18) for the part (10), which spring (17) at its bottom side leans on the supporting plate (8) and at its upper side leans against the holder plate (15), in such a way, that when the cover (3) is moved downwards, towards the vessel (2), the part (10) pulls the holder plate (15) towards the supporting plate (8) and makes the space or distance between the holder plate and the supporting plate smaller, such that the spring (17) is compressed, in such a way, that the moving towards each other of the cover (3) and the vessel (2) for the closing of the cover has to take place against spring force, while, when the fastening means are loosened for the opening of the cover, the cover (3) is lifted from the vessel (2) by the spring force.</p> |
