Abstract

A closing device for wells or the like includes a frame that is intended to be stationary in the mounted condition of the device and that delimits a through-slot; a removable closing cover, which cooperates with the frame and which can alternately be arranged in a closing or opening position of the slot, without coinciding therewith, the closing cover being provided with a locking mechanism to the frame in the closing position, the locking mechanism having a bolt that cooperates with an engagement seat integral with the frame, the locking mechanism being provided in combination with a drive tool of the locking mechanism; and enabling and disabling members of the drive tool that drive the locking mechanism or that couple the drive tool and the locking mechanism.

IPC Classes  ?

• E21B 41/00 - Equipment or details not covered by groups
• E21B 33/02 - Surface sealing or packing

Abstract

Closing device for manholes or similar, comprising: • a frame (1) delimiting a through-framing; • a closing lid (2) cooperating with said frame (1) and which can be placed alternately in a closed position of said through-framing and in an open position of said through-framing, • said lid (2) being divided into at least two lid leaves (102,202) and having a reciprocal abutment side in the closed condition, said lid (2) being provided with at least one locking mechanism. Said locking mechanism is provided in combination with enabling/ disabling devices of said locking mechanism, which consist of devices for blocking the actuation stroke of displacement devices and/or the displacement of a bolt into the opening position, and wherein said enabling/disabling devices are activated and deactivated by means of a key control of the mechanical and/or mechatronic key type and/or controlled by direct connection to code storage media and/or by wireless transmission of said codes.

IPC Classes  ?

• E02D 29/14 - Covers for manholes or the likeFrames for covers

Abstract

Closing device for wells or the like, comprising: • a frame intended to be stationary in the mounted condition of the device, which frame delimits a through-slot; • a removable closing cover cooperating with said frame and which can alternately be arranged in a closing position of said slot and in an opening position of said slot, in a position not coinciding thereto • said cover being provided with at least one locking mechanism to the frame in the closing position, the locking mechanism having at least one bolt cooperating with an engagement seat integral with the frame and • wherein the locking mechanism is provided in combination with a drive tool of said mechanism.

IPC Classes  ?

• E02D 29/14 - Covers for manholes or the likeFrames for covers
• E05B 65/00 - Locks for special use

Abstract

A manhole includes a device for safely closing and locking the manhole, which has a cylinder with centering pins that is attached to a slab and is rotatable with an operating key acting on the pins, and further includes an anti-burglary block, which in locked position is positioned inside the cylinder and hides and protects an anti-theft bolt positioned inside a hole, which crosses the entire anti-burglary block and has a larger diameter at the front and the same diameter as the anti-theft bolt in the back, so as to receive the anti-theft bolt in a threaded spot in the inner wall of the cylinder and enable placement of the anti-theft bolt in the body of the anti-burglary block when totally tightened into the threaded spot, wherein the end of the anti-theft bolt, in closed position, is housed in a locking hole on a circular support of the cover.

IPC Classes  ?

• E02D 29/14 - Covers for manholes or the likeFrames for covers
• E05B 65/00 - Locks for special use
• E05B 13/00 - Devices preventing the key or the handle or both from being used
• E05C 9/10 - Actuating mechanisms for bars
• E05B 17/18 - Closures or guards for keyholes shaped as lids or slides
• E05B 35/00 - Locks for use with special keys or a plurality of keys
• E05C 9/00 - Arrangement of simultaneously-actuated bolts or other securing devices at well-separated positions on the same wing
• E05B 17/00 - Accessories in connection with locks

Abstract

A manhole (50) comprising a device for safety closing and locking the manhole (50), comprising a cylinder (7), attached to a slab (8) which comprises centering pins (17, 17'), the cylinder (7) being able to rotate around an axis a-a' by the action of an operating key (29) acting on the pins (17, 17'), the manhole (50) further comprising at least one "anti-burglary block" (1), which in the locked position is positioned inside the cylinder (7) by means of one of the centering pins (17, 17'), said block (1) having a thickness equal to the height of the cylinder (7) and a curved surface in order to be adaptable to the inner wall of the cylinder (7), whose function is to hide and protect an anti-theft bolt (2) inside a hole (2a), which crosses the whole anti-burglary block (1), said hole (2a) having a larger diameter at the front and a diameter equal to the nominal diameter of the anti-theft bolt (2) in the back which supports the inner wall of the cylinder itself (7) having a tightening threaded spot (16) able to allow the placement of the anti-theft bolt (2) in the depth of the body of the anti-burglary block (1) in total tightening conditions into the threaded spot (16), wherein the end of the anti-theft bolt (2), in the closed position, is housed in a locking hole (15) on a circular support (13) of the cover (4).

IPC Classes  ?

• E02D 29/14 - Covers for manholes or the likeFrames for covers
• E05B 13/00 - Devices preventing the key or the handle or both from being used
• E05B 17/18 - Closures or guards for keyholes shaped as lids or slides
• E05B 35/00 - Locks for use with special keys or a plurality of keys
• E05C 9/00 - Arrangement of simultaneously-actuated bolts or other securing devices at well-separated positions on the same wing
• E05B 15/12 - Pins or detents for locking bolts