초록 ▼

Equipment for closing conduits comprising a closing lid (1) having two circular disks with a peripheral sealing ring of resilient material. A tightening device connect the two disks at the center thereof causing during tightening to compress the sealing ring radially outwardly. The tightening device

Equipment for closing conduits comprising a closing lid (1) having two circular disks with a peripheral sealing ring of resilient material. A tightening device connect the two disks at the center thereof causing during tightening to compress the sealing ring radially outwardly. The tightening device is of very stable construction conferring to the disks a parallel movement without mutual rotation. The equipment moreover comprises a mounting device (30) having three parts which are mobile in relation to each other, an attachment yoke (31), a main clamp (39) and a support plate (43). With the aid of a cog gear (40) and racks (42, 44) rotary movements are transformed into either a clamping movement between the closing lid (1) and the support plate (43) or a pulling movement between the closing lid (1) and the main clamp (39).

대표청구항 ▼

A mounting device for closing a conduit disposed in the ground using a closing lid to be positioned within said conduit relative to the internal surface of said conduit and having a first disk and a second disk, a sealing ring of resilient material positioned between said first and second disks, and

A mounting device for closing a conduit disposed in the ground using a closing lid to be positioned within said conduit relative to the internal surface of said conduit and having a first disk and a second disk, a sealing ring of resilient material positioned between said first and second disks, and a nut member for axially moving said disks relative to each other in an axial direction, when said nut member is rotated, to cause said sealing ring to move in a radial direction relative to said internal surface of said conduit, comprising: a main clamp member having a first end which forms a first support surface, and a second end; a second support surface having a first rack extending therefrom, said first rack extending in a first direction and being coupled to said main clamp member at said second end, said second support surface and said first rack being movable relative to said second end; an attachment member having a second rack extending from one end thereof, said second rack extending in a second direction opposite of said first direction and being coupled to said main clamp member at said second end, and having another end, said attachment member and said second rack being movable relative to said second end; a cog wheel operatively positioned relative to said first and second racks for causing said first and second racks to move relative to said second end of said main clamp in opposite directions; and, a nut rotating member coupled to said another end of said attachment member including a nut engaging sleeve, a first angular gear attached to said nut engaging sleeve, a second angular gear mating with said first angular gear, and a shaft extending from said second angular gear for turning said second angular gear.