The invention discloses an anti-theft inspection well lid. The anti-theft inspection well lid comprises an anti-theft inspection well lid body, the anti-theft inspection well lid body comprises a first main anti-theft inspection well lid body and a second main anti-theft inspection well lid body, wherein the first main anti-theft inspection well lid body and the second main anti-theft inspection well lid body are connected through a hinge, the first main anti-theft inspection well lid body is made of metal, the second main anti-theft inspection well lid body is made of concrete in a poured mode, and the lower surface of the first main anti-theft inspection well lid body is connected with the lower surface of the second main anti-theft inspection well lid body through a connecting mechanism. The total weight of the anti-theft inspection well lid body is increased, and behaviors of a thief are blocked to a certain degree; in addition, the first main anti-theft metal inspection well lid body easy to steal is connected to the second main anti-theft inspection well lid body through the connecting mechanism, it is avoided that the first main anti-theft inspection well lid body is stolen individually, and a user of the inspection well lid can open the first main anti-theft inspection well lid body conveniently to carry out maintenance and routine inspection on facilities, material replacement and other operation.

Anti-theft inspection well lid

The invention provides an observation window for a control console of a refueling machine, which comprises an observation hole and a cover plate capable of covering the observation hole. A connecting device ensuring that the cover plate is opened at the maximum angle of 60 to 80 degrees relative to the observation hole is arranged between the observation hole and the cover plate. The observation window is provided with the connecting device, so the cover plate cannot be completely opened, and when the window is opened for operation, a person holds the cover plate with hands, and another person performs operation; therefore, a guarder is compulsorily allocated at the observation hole, and the cover plate cannot be horizontally moved beyond a hole range, namely the cover plate is only put on the hole when there is no person for guarding, the cover plate has obvious reminding function, and a person is prevented from missing his foot when the person mistakes the opened cover plate for theclosed cover plate, and further falling into a pool so as to avoid injury and death.

Observation window for control console of refueling machine

The utility model relates to a well cover for various wells for maintaining underground pipelines. At present, a well cover which is used is a separate type and is easy to steal; due to the rolling of the external force of cars, etc., the well cover and a well ring are misplaced; thus, traffic accidents are usually happened to cause personal casualties. One end of an anti-theft iron chain is connected with a connector on the well cover, and the other end is connected with the connector of the well ring, so the utility model can have an anti-theft function. By the application of the well cover and a boss on the well ring, the well cover for various wells for maintaining underground pipelines can prevent a misplacement phenomenon under the external force.

Jiawen Sun

Papers

Anti-theft well cover