35results about How to "Working at heights safety" patented technology

The invention provides a pin shaft connecting structure, assembling and disassembling methods thereof and a tower crane. The pin shaft connecting structure comprises two pin shaft connecting ear plates (10) which are fixedly connected to the end parts of a chord member (50) and are arranged oppositely and connecting pin shafts (20) which are arranged in pin shaft connecting holes of the two pin shaft connecting ear plates (10); each of the two pin shaft connecting ear plates (10) comprises an upper connecting plate (11) arranged at the upside and a lower connecting plate (12) arranged at the downside; the upper connecting plates (11) and the lower connecting plates (12) are respectively transversely connected to the end part of the chord member (50); and the connecting pin shafts (20) are vertically mounted in the pin shaft connecting ear plates (10). According to the pin shaft connecting structure, disclosed by the invention, the height of a cargo boom of the tower crane and transportation cost of the tower crane can be reduced without reducing structural intensity of the pin shaft connecting ear plates.

The invention discloses a suspended vertical operating platform. The suspended vertical operating platform comprises a body, a driving assembly and an operating platform assembly; the body is provided with a carrying assembly, which is slidably connected with the roof of a roadway; the driving assembly which is used for driving the carrying assembly is arranged on the body and slidably connected with the body; an operator can work on the operating platform assembly, and the operating platform assembly is connected with the body. Consequently, since the suspended vertical operating platform adopts the suspension type design, the suspended vertical operating platform not only can solve the safety problem confronting high-altitude operating personnel in large roadways, but also can realize the mechanization of high-altitude mine operation, decrease the workload of miners and ensure that high-altitude mine operation is safer and more reliable.

The invention relates to the field of matched components of a steel rope, in particular to a star wheel transition device for a padlock of a safety rope. A hook penetrating wheel of the transition device is used for supporting the steel rope. A plurality of the transition devices have the effect of pulling the steel rope, so that the steel rope is prevented from dangling, and the steel rope can be proximately maintained at a straight line; when the padlock of the safety rope slides to one side of the hook penetrating wheel, an operator can swing the safety rope to enable the hook penetrating wheel to rotate; when the hook penetrating wheel rotates to a certain angle, wheel angles for vertically preventing the padlock from passing through, on the hook penetrating wheel, can rotate to the other side of the transition device, the padlock continues sliding to the other side of the transition device along the steel rope, and under the premise that the padlock is not disassembled, the padlock is enabled to pass through the transition device smoothly. The transition device not only has the effect of pulling the steel rope but also can enable the padlock to slide on the steel rope smoothly, so that the occurrence of the situation that the padlock is removed from the steel rope is avoided, further the operating difficulty of the operator in high-altitude work is greatly reduced, and the process of the high-altitude work is safe.

The invention discloses a safe and reliable platform, which comprises a standing surface, a fixed bracket, a hoop, a limit groove and a safety belt. The surface is made of multiple steel bars crossed and fixed, and the multiple steel bars are integrally structured; there are two limiting grooves, both of which are located on the upper surface of the standing surface, and a safety belt is respectively installed on both ends of the fence , The seat belts are connected by a buckle structure. Through the above-mentioned structure, the present invention can stand on the maintenance platform to carry out the maintenance operation, the operation is more convenient and simple, and the safety factor of high-altitude operation is high.

The invention belongs to the technical field of high-altitude operation equipment and provides an electrical operation vehicle. The vehicle comprises a vehicle body; a mounting platform is rotationally mounted on the vehicle body; a supporting frame and a steel cable winding roller driven by a first power device are arranged on the mounting platform; a steel cable winds around the steel cable winding roller; a cross beam is mounted at the top end of the supporting frame; a steel cable wheel is rotationally mounted at one end of the cross beam; a telescopic rod driven by a second power device is glidingly mounted at the other end of the cross beam; a fixed pulley is rotationally mounted at one end of the telescopic rod; a movable pulley is rotationally mounted on a lifting lug; the steel cable winds around the steel cable wheel, the fixed pulley and the movably pulley sequentially; the end of the steel cable is fixedly connected onto the cross beam; two groups of connecting rod mechanisms comprising first connecting rods and second connecting rods are arranged between the lifting lug and a working lifting basket; the first connecting rods and the second connecting rods are arrangedin the scissor-fork shape; and two ends of each of the first connecting rods and the second connecting rods are hinged to the lifting lug and the working lifting basket respectively. By the aid of thevehicle, the working range and the working efficiency are increased, movement of the working lifting basket or the phenomenon of swaying during working can be effectively avoided, and the safety performance is higher.

A belt type fastening device comprises a shell part with a first fixing surface, a fastening component comprising a head portion and a rod portion, a nut part and a flexible belt, wherein at least part of the rod portion in length is provided with an outer thread; the nut part comprises a threaded hole with an inner thread; the nut part is installed on the rod portion through thread matching; the flexible belt is provided with a first end and a free end; the first end is connected with the nut part; the fastening component further comprises a second fixing surface; one part of the flexible belt is arranged between the first fixing surface and the second fixing surface; the rod portion of the fastening component rotates in one direction, so that the nut part moves towards the head portion of the fastening component along the rod portion, the second fixing surface moves towards the first fixing surface, and therefore one part of the flexible belt abuts against and is fixedly positioned on the first fixing surface.

The invention discloses a high-altitude stringing protection device, and belongs to the technical field of power construction. The high-altitude stringing protection device comprises a first installation unit, a second installation unit and a protection net, wherein the first installation unit comprises a first installation frame, a rolling assembly, an air bag and a first pull rope assembly, the rolling end of the rolling assembly and the air bag are arranged on the two sides of an external cable in the first direction, the driving end of the rolling assembly can drive the rolling end to move in the second direction and can drive the first installation frame to move in the second direction, the second installation unit and the first installation unit are oppositely arranged in the second direction, the second installation unit comprises a second installation frame, a fixing piece, an air pump and a second pull rope assembly, the air pump can inflate the air bag to enable the external cable to be extruded between the rolling end and the air bag, the fixing piece is detachably connected to the external cable, the two ends of the protection net are connected with the first pull rope assembly and the second pull rope assembly respectively. According to the invention, the safety of high-altitude stringing is ensured.

A construction device for a wall connecting piece assembly for a scaffold comprises a wall body. A hole groove is formed in the outer side face of the wall body; a transverse pipe is fixedly installedin the hole groove, and an end cover is fixedly installed at the left end of the transverse pipe; a first through hole is formed in the right end face of the end cover and internally provided with atransverse shaft; the transverse shaft is in movable bearing connection with the first through hole; a driving gear is fixedly installed at the right end of the transverse shaft and located in the transverse pipe; a second through hole is formed in the inner side face of the wall body, and the central lines of the second through hole and the first through hole are coaxial; the left end of the transverse shaft is located in the second through hole; a plurality of first lead screws which are distributed evenly are arranged on the periphery of the driving gear; the left ends of the first lead screws are in movable bearing connection with the right side of the end cover, and the right ends of the first lead screws are connected with the inner wall of the transverse pipe through shaft seats; and driven gears are fixedly installed at the left ends of the first lead screws, and the driving gear is matched with the driven gears in an engaged mode. The construction device has the function of mounting various objects such as the scaffold and an advertising board simultaneously, a working platform can be mounted conveniently in subsequent construction, the structure is simple, and the function is diversified.