59results about How to "Reduce the risk of work" patented technology

The invention discloses an automatic road cone placing and recycling device which comprises an automatic road cone placing device and an automatic road cone recycling device. The automatic road cone placing device is arranged on the outer side of a hopper of a vehicle, is positioned behind rear wheels of the vehicle and comprises a first annular conveying belt which is backwardly obliquely arranged, and a plurality of hooks which are arranged in pairs and are used for placing road cones are arranged on the first annular conveying belt along the running direction of the first annular conveying belt. The automatic road cone recycling device is arranged on the same outer side of the hopper of the vehicle, is positioned in front of the rear wheels of the vehicle and comprises a second annular conveying belt which is forwardly obliquely arranged, and a collision part which is used for being collided with the road cones so as to recycle the road cones is disposed at the front end of the second annular conveying belt. The automatic road cone placing and recycling device can automatically place and recycle the road cones, operational risks are reduced, labor intensity is lowered, and labor is saved.

The invention provides a modular door leaf of a fabricated civil air defense door. The modular door leaf comprises multiple frame steel channels, multiple pieces of I steel and multiple fabricated modules. The frame steel channels are sequentially connected end to end to form a closed ring. A groove formed by each frame steel channel points to the center of the closed ring, and an embedded batten is formed on each frame steel channel, so that the frame steel channels are embedded into sealing adhesive tape on a fabricated civil air defense protection airtight door and a door frame of the airtight door. The multiple pieces of I steel are arranged in the closed ring and connected with the multiple frame steel channels to form lattices. The multiple fabricated modules are used for improving the strength of the modular door leaf and detachably connected into the multiple lattices in a one-to-one correspondence mode. The fabricated civil air defense door comprises the door frame, the door leaf, the sealing adhesive tape, a locking mechanism and hinges. The door leaf is the module door leaf. The door leaf can be produced on an assembly line and portably assembled, welding procedures during manufacturing are reduced, the quality guarantee coefficient is increased, and meanwhile positioning precision is guaranteed by the adoption of modular production.

The invention relates to an automatic connecting device which comprises ship units, and is characterized in that the adjacent ends of the two adjacent ship units are respectively provided with a concave pit and a longitudinal hole, wherein the concave pit is internally provided with a locating box which is internally provided with an upper clamp shell and a lower clamp shell, and the upper clamp shell and the lower clamp shell are respectively and rotatablely arranged in the locating box by an upper fixed pin and a lower fixed pin; an upper limit column and a lower limit column are respectively arranged at the upper side of the inner end of the upper clamp shell and the lower side of the inner end of the lower clamp shell; a balance weight is arranged at the inner end of the upper clamp shell; the longitudinal hole is internally provided with a telescopic oil cylinder and a locating rod; the outer end of the locating rod is provided with a ball head; the adjacent surfaces of the upper clamp shell and the lower clamp shell are respectively provided with a spherical concave pit; and in a connecting state of the two adjacent ship units, the ball head arranged at the outer end of the locating rod is inserted into the spherical concave pits arranged on the adjacent surfaces of the upper clamp shell and the lower clamp shell; and the ball head arranged at the outer end of the locating rod is clamped between the upper clamp shell and the lower clamp shell by a bolt and the like. After the connecting device is adopted, the operation efficiency is high, and the operation time is short; furthermore, the structure damage caused by the collision between the ship units can be avoided, and the operation danger can be reduced.