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

The invention relates to an auxiliary library book moving trolley used in libraries. The auxiliary library book moving trolley comprises a trolley main body and silence foot wheels, wherein the trolley main body comprises a trolley bottom plate, side trolley baffles, a front trolley baffle and a rear trolley baffle; screw rod device holding boxes are arranged at the upper parts of both the front trolley baffle and the rear trolley baffle in opposite directions; the screw rod device holding boxes are coverless cuboids; each screw rod device holding box is internally provided with two screw rod liftingdevices; a rocker is arranged on the rear trolley baffle; four screw rod lifting devices are controlled by the rocker uniformly; four silence pulleys are arranged on the bottom side of the trolley bottom plate, that is, two silence pulleys are arranged at the front end and the rear end respectively; an upper-layer book drawer, a middle-layer book drawer and a lower-layer book drawer are arranged on the trolley main body. Through the adoption of the auxiliary library book moving trolley, workers can conveniently place books on high-level shelves, the workload of the workers is alleviated, the workers can conveniently take the books in the trolley as the book drawers can be pulled outwards, and thus the working efficiency is improved.

The invention relates to an anti-perversion device (10) used for an overhead working truck (1). The overhead working truck comprises a truck body which is provided with a front wheel and a rear wheel (3a and 3b) and walks forwards, and a fork-type lifting device (4) arranged on the truck body and used for lifting a working table (5). The invention comprises an anti-perversion board (11) arranged inside a vertical panel extending leftwards and rightwards below the truck body between the front wheel and the rear wheel in a free swing way and moved to a folding position and an unfolding position; a driving arm (12) whose external side part is connected with the anti-perversion board; an unfolding operation part (14) arranged on the truck body and used for pushing upwards the head (12b) of the driving arm so as to swing downwards to the external side part of the driving arm and swing the anti-perversion board towards to the unfolding position; and a folding operation part (15) arranged onthe lifting device and used for pressing downwards the head of the driving arm when the lifting device lifts downwards and swing upwards the external side part of the driving arm so as to swing the anti-perversion board to the folding position.

The invention discloses a thread jamming device winding and unwinding operation device which comprises a main connecting plate, a containing plate and a recycling plate. Both the containing plate and the recycling plate are fixedly connected with the main connecting plate, two connecting holes, a first pin shaft hole and a second pin shaft hole are formed in the main connecting plate, the two connecting holes are used for being connected with safety hooks, the first pin shaft hole is used for allowing an upper jaw fixing pin shaft to be inserted to enable the main connecting plate to be connected with an upper jaw of a thread jamming device, and the second pin shaft hole is used for allowing a lower jaw fixing pin shaft to be inserted to enable the main connecting plate to be connected with a lower jaw of the thread jamming device. A containing pulling ring is arranged on the end portion of one end, far away from the main connecting plate, of the containing plate, and a recycling pulling ring is arranged on the end portion of one end, far away from the main connecting plate, of the recycling plate. The thread jamming device winding and unwinding operation device has the advantages of bringing convenience to a user who uses the thread jamming device to place the thread jamming device at the appropriate thread holding position, bringing convenience to recycling the thread jamming device, being simple in structure and easy to manufacture and the like.

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 relates to a composite material cantilever section for a cantilever crane of a concrete pump truck and a manufacturing method of the composite material cantilever section for the cantilever crane of the concrete pump truck, and belongs to the technical field of concrete pump trucks. The composite material cantilever section comprises a framework, a concrete conveying pipeline, a connecting bolt, a hydraulic mechanism and a connecting pin shaft, wherein the framework comprises a large end connector located at one end, a main body located in the middle part, and a small end connector located at the other end. The composite material cantilever section for the cantilever crane of the concrete pump truck is stronger in design adaptability, and a higher structure effect is acquired with lower quality cost to the greatest extent through the changes of the designable composite material, structure size and process.

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 stabilization device for building exterior wall construction. Check, if there is a damaged position of the rope, it needs to be replaced; the upper end of the rope is connected to the top of the building, the lower end of the rope is fixed with the ground, and a safety wire is matched between the two ropes. The safety rope is also made of nylon rope. When choosing the safety rope, the diameter needs to be slightly smaller than the diameter of the rope; when the device is in use, it is necessary to keep the rope vertical, and the ropes on both sides can stabilize the hanging basket. It can still achieve stable support; make aerial work safer.

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.

A lifting frame. The present invention proposes a rectangular frame body composed of metal rods and a bearing platform, which is characterized in that: the four corners of the bearing platform are sleeved on the four columns of the frame body through holes, and the top ends of the columns are all set There are pulleys, and the four corners of the carrying platform are fixed by a wheel rope passing through the pulley, and the other end of the wheel rope is connected to the motor. With the above connection relationship, in actual operation, the worker can place the workpiece on the ground to the After being placed on the carrying platform, it is pulled up to the required height by pulleys, which reduces the difficulty of operation and improves safety.

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.

The invention relates to a safety seat, in particular to a foldable high-altitude safety seat for high-altitude work. The technical effects that the foldable high-altitude safety seat for high-altitude work is comfort and safe are achieved. In order to achieve the technical effects, the provided foldable high-altitude safety seat for high-altitude work comprises a first mounting plate, safety ropes and the like. A second mounting plate is connected with the bottom of the right side of the first mounting plate in a hinged mode. A third mounting plate is connected with the right side of the bottom of the second mounting plate in a hinged mode. A fixing mechanism is arranged on the right side of the top of the second mounting plate. The unfolded safety seat can be supported and fixed to the upper body of an operator, thus, high-altitude work is safer, a safety belt can be tied to different persons and can hang a barrel loaded with high-altitude work tools, and the folded safety seat can be prevented from unfolding.