31results about How to "To prevent falling" patented technology

The invention relates to the field of public utilities, in particular to a well lid. The well lid comprises a well lid body, an advertising layer and an anti-drop net, wherein the advertising layer is arranged on the upper surface of the well lid body, and the anti-drop net is arranged under the well lid body and is matched with the well lid body. The anti-drop net comprises circular rings and a net bag which connects the circumferences of the circular rings together. The well lid has the following functions: sheltering the mouth of a well: the well lid body can be used for sheltering the mouth of the well; advertising: the advertising layer can be used for advertising, and the space of the well lid body is fully utilized; anti-drop: the net bag can play an anti-drop role, and when the well lid is lost, stolen or maintained, the anti-drop net can prevent people or articles from dropping into the well, therefore, various accidents are avoided, and the safety of pedestrians is ensured.

The invention discloses a locating and falling preventing device for a moving smoke cover of a rotary furnace. The locating and falling preventing device is composed of multiple connecting units for connecting the moving smoke cover of the rotary furnace with a smoke cover fixing beam. Each connecting unit comprises a fixed part and a moving part. The tops of the fixed parts are installed on the smoke cover fixing beam through a girder fixing base. The bottoms of the moving parts are installed around the moving smoke cover through a smoke cover fixing base. The fixed parts and the moving partsare installed in a guiding manner through sliding pairs. The smoke cover fixing base is provided with chains for hoisting. The chains for hoisting are connected with a hoisting device arranged on thesmoke cover fixing beam. The device further has double falling preventing functions on the basis of guiding, the function of a set square and a guide groove is utilized, guiding is more stable, the falling preventing function can also be achieved, and the chains in a moving casing pipe and a fixed casing pipe can have a secondary falling preventing function. After the device is installed on the moving smoke cover, the fault rate is reduced obviously, and meanwhile the service life of the moving smoke cover is prolonged.

The invention discloses a safety fall-preventing composite mechanism used for an inspection well. A through hole used for water circulating is formed in a well lid; a fall-preventing screen board comprises a positioning barrel, a plurality of radiant ribs and a plurality of reinforcing ribs, which are distributed in the shape of a spider web by taking the positioning barrel as a center, wherein the axial two end openings of an outer sleeve of a buffer mechanism are sealed by sealing plates; an inner sleeve penetrates through the sealing plates at the axial two end openings of the outer sleeveto be sleeved in the outer sleeve; a plurality of first through holes are formed in the sealing plate at the axial bottom end of the outer sleeve; a plurality of curved blade type strip-shaped shellswhich are distributed in the form of a turbine are arranged on the surface of the sealing plate at the axial top end of the outer sleeve in a convex mode; a plurality of liquid distributing holes areuniformly formed in the same side wall of a housing; the outer wall of one axial end of a central tube is rotatably connected with the inner wall of the inner sleeve through a bearing, and the other axial end of the central tube is movably connected with the positioning barrel; and a plurality of second through holes are formed in the side wall of the central tube. The safety fall-preventing composite mechanism is beneficial for effectively dispersing and weakening strong water flow impact force generated by return overflow, and is beneficial for preventing the well lid from being jacked to lose to cause casualties; and the fall-preventing screen board is stable and safe in structure.

The invention provides an anti-falling street lamp convenient to disassemble, and relates to the technical field of street lamp lighting equipment. The anti-falling street lamp convenient to disassemble comprises a stand column and a lamp post, wherein the top end of the stand column is connected with the lamp post through a fastening bolt; a lampshade is arranged at the end of the lamp post. Fixing strips are arranged at the bottom of the lampshade; the fixing strip is mounted on the lamp post; a supporting strip is arranged between the lamp post and the stand column. According to the anti-falling street lamp convenient to disassemble, a split type structure is adopted, the lamp post and the stand column are separated into two parts, the lamp post and the stand column are connected through the fastening bolt, and the installation difficulty of the street lamp is reduced.

The invention discloses an anti-falling safety well lid assembly. A through hole used for water flowing is opened on the well lid; an anti-falling screen plate comprises a positioning barrel, a plurality of radiating ribs and a plurality of reinforcing ribs, wherein a plurality of radiating ribs and a plurality of reinforcing ribs are arranged in a spider web centering on the positioning barrel; two axial ends of the outer sleeve of the buffering mechanism are sealed by a sealing plate, the inner sleeve penetrates through the sealing plate at two axial ends of the outer sleeve and is sleeved in the outer sleeve; a plurality of first through holes are opened on the axial bottom end sealing plate of the outer sleeve; a plurality of leaf bending type strip-shaped shells are convexly arrangedon the surface of the axial top end sealing plate of the outer sleeve and are arranged in a turbine shape, and a plurality of liquid distribution holes are opened on the same side walls of the shells;the outer wall of one axial end of the center pipe is rotationally connected with the inner wall of the inner sleeve by a bearing and the other axial end is movably connected with the positioning barrel; and a plurality of second through holes are opened on the side wall of the center pipe. According to the anti-falling safety well lid assembly, the strong water flow impact force generated by overflow can be effectively dispersed and reduced, and casualties and vehicle damage since the well lid is jacked up and lost are avoided.