31results about How to "Live working safety" patented technology

The invention relates to an outdoor isolation switch contact adjustment tool, in particular to an isolation switch contact adjustment device. When an isolation switch contact is switched on in place, a contact is knocked to be switched on through repeatedly breaking and closing by a constructor or by using an insulation rod to cause contact damage. The tool for adjusting the contact after the isolation switch is switched on, provided by the invention, comprises a clamping part and a transmission part, wherein the clamping part is a groove-shaped clamping main body composed of a bottom plate, a static press plate and a side top plate, a movable press plate is arranged in a groove, a first connector is fixedly arranged at a lower part of the bottom plate, a spiral top rod of the transmission part is matched with the side top plate through a thread, one end of the spiral top rod is rotatably matched with the movable press plate, the other end of the spiral top rod is hinged with a connection rod by a rotation shaft A, the other end of the connection rod is hinged with a second connector by a rotation shaft B, and the rotation shaft A is perpendicular to the rotation shaft B. The tool has the advantages that a worker stands on the ground and can operate, the tool is safe, reliable, safe and rapid and is gentle in action, and the contact cannot be damaged.

The invention provides a line dropping operation device used for a double-head tackle and a processing method for foreign matters on a lead. The device comprises an unmanned aerial vehicle and a grabber which is connected with the unmanned aerial vehicle. The grabber comprises a steering engine and two clamping mechanisms which are oppositely and symmetrically arranged at the two sides of the steering engine. The unmanned aerial vehicle can control on / off of the steering engine. Each clamping mechanism comprises at least one group of a rotating joint and a clamping claw which are connected from the top to the bottom. One end of the rotating joint can be rotatably connected with the steering engine, and the other end of the rotating joint can be rotatably connected with one end of the clamping claw. The other end of the clamping claw extends to the center line of the steering engine. The steering engine drives all the rotating joints to rotate so as to drive the other end of each clamping claw to gradually contract to the inside to penetrate through hooks and hang on the double-head tackle. The steering engine drives all the rotating joints to reversely rotate so as to drive the other end of each clamping claw to stretch to the outside and separate from the hooks. The double-head tackle can conveniently reach any position so that the efficiency of removing the foreign matters can be enhanced and artificial tower climbing can be avoided.

The invention relates to an outdoor isolation switch contact adjustment tool, in particular to an isolation switch contact adjustment device. When an isolation switch contact is switched on in place, a contact is knocked to be switched on through repeatedly breaking and closing by a constructor or by using an insulation rod to cause contact damage. The tool for adjusting the contact after the isolation switch is switched on, provided by the invention, comprises a clamping part and a transmission part, wherein the clamping part is a groove-shaped clamping main body composed of a bottom plate, a static press plate and a side top plate, a movable press plate is arranged in a groove, a first connector is fixedly arranged at a lower part of the bottom plate, a spiral top rod of the transmission part is matched with the side top plate through a thread, one end of the spiral top rod is rotatably matched with the movable press plate, the other end of the spiral top rod is hinged with a connection rod by a rotation shaft A, the other end of the connection rod is hinged with a second connector by a rotation shaft B, and the rotation shaft A is perpendicular to the rotation shaft B. The tool has the advantages that a worker stands on the ground and can operate, the tool is safe, reliable, safe and rapid and is gentle in action, and the contact cannot be damaged.

The invention relates to a method for producing screw support and relative screw support, which can avoid central deflection of covered layer, and set the right position of cross mould relative to the phase of long screw. The inventive method comprises: feeding metal core wire (2) into the mould (8) whose front part is the long screw hole (82) through with metal core wire (2) and the back part isthe long screw large hole (83) larger than the small hole (82); the metal core wire (2) of front part is bended into the long screw; and the back part is covered with macromolecule material.