130results about How to "Reduce time spent working at heights" patented technology

The invention discloses power transmission tower reinforcing clamps, a power transmission tower reinforcing device and a power transmission tower reinforcing method. Each power transmission tower reinforcing clamp comprises a main body and a matched part, wherein the main body comprises a clamping part and a connection part which are connected; the clamping part and the matched part are matched to clamp a power transmission tower main material; the joint of the clamping part and the matched part is located in the positions where the clamping part and the matched part extend through the two side edges of the power transmission tower main material. The power transmission tower reinforcing device comprises the multiple power transmission tower reinforcing clamps and a plurality of reinforcing parts. The reinforcing parts are fixed to the power transmission tower main material through the power transmission tower reinforcing clamps, meanwhile, every two adjacent reinforcing parts are in butt joint and are then connected with a shoe plank on a power transmission tower foot plate. The power transmission tower reinforcing method ensures the reinforcing effect of a power transmission tower through combination of finite element analysis and tests. The power transmission tower reinforcing clamps are simple to install, and the power transmission tower reinforcing device and the power transmission tower reinforcing method improve the strength of the power transmission tower.

The invention discloses a construction technology for a large-diameter pipeline crossing construction catwalk, and relates to the technical field of construction of suspension cable type crossing bridges of pipelines. The construction technology for the large-diameter pipeline crossing construction catwalk comprises the steps of pre-making a scheme, prefabricating catwalks, adjusting the catwalk line shape and the tower perpendicularity and lifting the overall catwalks, provides an installation method for a construction passageway (catwalk) for a main cable by adopting aerial prefabricating methods like long-span crossing PPWS, and effectively reduces the overhead installation and overall construction period of catwalks.

The invention discloses a method for replacing lifting ropes of a multi-rope frictional geared winch. A tensioner, a pulley block, a head sheave, the lifting ropes, the winch, a tractor, a container II and a container II are involved; and according to the characteristics of the multi-rope frictional geared winch, the ropes are replaced by effectively using the tensioner and the tractor, at least two ropes are always kept connected with the containers, the winch has enough traction to draw the containers in the rope replacement construction process, the lifting ropes keep enough intensity, themechanical operation level is improved, rope replacement time is reduced, the labor intensity of workers and high-attitude operation time at a wellhead are reduced, the aim of replacing the ropes safely is fulfilled and normal production is guaranteed.

The invention discloses an integrated hoisting method for a corrugated steel web part. The method includes the following steps that a hanging basket is moved forward in place on the N-1th corrugated steel web section of a corrugated steel web PC box girder bridge, so that the bottom of the hanging basket is fixed to the N-1th corrugated steel web section, and the top of the hanging basket protrudes out of the front end of the N-1th corrugated steel web section; precast splicing of the Nth corrugated steel web section is completed in a factory, the Nth corrugated steel web section is composed of a plurality of longitudinal corrugated steel webs, and the corrugated steel webs are fixedly connected with transverse steel cross beams and temporary supporting and reinforcing devices; by means of a flat plate barge, the Nth corrugated steel web section is conveyed to the position under the design position; by means of a hoisting system located on the top of the hanging basket, the Nth corrugated steel web section is hoisted in place, and the Nth corrugated steel web section and the N-1th corrugated steel web section are connected. The integrated hoisting method has the advantages that the construction period is effectively shortened, construction quality is improved, and aloft work time is shortened.

The invention relates to a mounting structure and method of a high-and-large-space clean room, and belongs to the technical field of mounting of cleanroom metal wall plates. The mounting structure comprises metal wall plates, fixing rods and a moving seat; clamping grooves are formed in the side walls, close to a wall, of the metal wall plates, and the fixing rods are clamped in the clamping grooves of the two or more metal wall plates; every two adjacent metal wall plates are fixedly connected through a connecting piece; a lifting plate is arranged on the moving seat, and clamping parts usedfor being clamped in the side walls of the metal wall plates are slidably arranged at the two ends of the lifting plate in the length direction of the lifting plate; and the lifting plate is providedwith a driving assembly for driving the two clamping parts to move in the direction getting close to or away from each other, and the moving seat is provided with a driving source used for driving thelifting plate to ascend and descend. The multiple metal wall plates are fixed into a whole, thus mounting is convenient, the time of working at the high altitude is reduced, and safety is improved.

The invention provides a slip form integrated lifting type concrete curing device and method. The slip form integrated lifting type concrete curing device includes PPR pipe rings, tee joints, hoses, cotton quilts and iron hooks, the iron hooks are fixed to the lower end of a slip form operating table, the PPR pipe rings are hooked by the iron hooks, and the PPR pipe rings are arranged around structures; and the cotton quilts are hung on the PPR pipe rings which are provided with a plurality of small holes in the circumferential direction, the PPR pipe rings are connected with the hoses throughthe tee joints, and the hoses are connected with water sources. The slip form integrated lifting type concrete curing device and method are mainly applied to the outer wall concrete curing of grain elevators, water towers and other structures, and less manpower and fewer materials are invested to achieve the purposes of real-time curing, energy conservation and environmental protection, safety factor improving and the like.

The invention relates to a removing method of a lifting cover for hoisting. The removing method is characterized by comprising the following steps of: installing the lifting cover and an operating platform on equipment to be hoisted; connecting hoisting ropes, starting a main hoist to hoist the equipment to be hoisted to an equipment installing foundation in position; hoisting operators to the operating platform by using an auxiliary hoist, loosening double-head studs and nuts for fixing the lifting cover and equipment flanges, and then returning the operators to the ground by using the auxiliary hoist; lifting a hoisting hook of the main hoist, separating the operating platform and the lifting cover from a top flange of the equipment; rotating an arm rod of the main hoist, and falling the hoisting hook, till the operating platform and the lifting cover fall to the ground; and disassembling the operating platform and the lifting cover on the ground. The removing method has the advantages that by specially-designed matching of the operating platform and the lifting cover, the lifting cover and the operating platform can be quickly disassembled from the equipment after the hoisting is finished, and then the operating platform is separated from the lifting cover on the ground, so that the working efficiency and the hoisting safety are greatly improved, and meanwhile the hoisting construction cost is also reduced.

The invention provides a prefabricated valve set for a four-pipe fan coiler. The prefabricated valve set comprises a support, an electric two-way valve, a first ball valve, a second ball valve and a filter. The support comprises a steel channel, first supporting plates and second supporting plates. Multiple first supporting plates are fixedly connected to the outer side of the first side wall of the steel channel. Multiple second supporting plates are fixedly connected to the outer side of the second side wall of the steel channel. The first side wall and the second side wall are parallel. Thefirst end of the electric two-way valve is connected with the first end of the first ball valve through a first pipe section. The first end of the filter is connected with the first end of the secondball valve through a second pipe section. The first pipe section penetrates through holes in the first supporting plates, and the second pipe section penetrates through holes in the second supportingplates. According to the prefabricated valve set, the project construction quality is improved greatly, the prefabricated valve set has integrality and compactness, and is easy to install, and unnecessary potential safety hazards of high-altitude operation are avoided.

The invention discloses an insulating rod for shortening the working time for electrified replacement of a suspension insulator of a ground electrode, which comprises a C-shaped elbow, a support plate, a force applying device, a pin puller, a rod body and an operating mechanism. The C-shape elbow is arranged at the top end, and the upper and lower ends of the opening are provided with inclined surfaces; the support plate is arranged below the C-shaped elbow; the force applying device is arranged in front of the support plate; the pin puller is arranged on the upper part of the front side of the force applying device; the rod body is arranged below the support plate; the operating mechanism is arranged at the lower part of the rod body. The insulating rod is capable of pulling and pluggingpins and removal and restore insulator connection, and the working time of electrified replacement of the grounding line suspension insulator is greatly shortened, the working time of high-altitude work is reduced, and the physical strength is saved.

The invention discloses a pure air gap arrester. The pure air gap arrester comprises a discharge counter, a discharge counter frame, a suspension beam below the discharge counter frame, an arrester main body, an upper gap rod, a fixing universal hook, a lower gap rod, an insulator, and a connection wire mounting hole, wherein the arrester main body and the insulator are arranged in parallel; both the upper gap rod and the lower gap rod are made of, by weight, carbon fiber 40%, high-carbon graphite 40%, copper powder 5%, white steel powder 5% and conductive resin 30% by pressing, wherein the carbon fiber is in a bar-like, round, octagonal, elliptical or ovale shape. The pure air gap arrester provided by the invention has the advantages of long service life, high stability, high strength, low specific gravity, light weight, and high resistance to heat, corrosion and radiation.

The invention relates to a cable saddle rigidization structure and an integral position-fixing and mounting method thereof. The cable saddle rigidization structure comprises a section steel frame bodyand multi-layer cable saddles mounted on the section steel frame body, wherein the position fixing of the multi-layer cable saddles relative to each other is achieved through relative coordinates; relative space angles of the multi-layer cable saddles are ensured to be in accordance with relative space angles of cable saddles in cable bent tower segments; the section steel frame body comprises frame body vertical rods corresponding to embedded parts in the cable bent tower segments in position, position-fixing horizontal rods transversely connected to the frame body vertical rods, and frame body horizontal rods longitudinally connected to the frame body vertical rods; the cable saddles are placed on the position-fixing horizontal rods; and the positions of the cable saddles are fixed through position-limiting section steel. The multi-layer cable saddles are controlled through the relative coordinates during rigidization, so that the relative positions of the multi-layer cable saddlesare guaranteed. The multi-layer cable saddles are integrally hoisted to the tower after rigidization and then controlled through absolute coordinates. The position fixing is fast, and the position fixing precision is high. In addition, position fixing performed aloft is not needed, and the construction of a cable bent tower is not affected, so that the overall construction progress is accelerated.

The invention discloses a fabricated bridge substructure which comprises a foundation structure, a prefabricated bent cap and a quasi-prefabricated pier column unit, and foundation reserved vertical ribs are arranged at the top of the foundation structure; cover beam reserved vertical ribs are arranged on the lower side of the prefabricated bent cap. At least one sprue gate vertically penetrating through the prefabricated bent cap is arranged in the area covered by the reserved vertical ribs of the bent cap; a standard prefabricated pier column unit is a hollow cylinder with openings in the upper portion and the lower portion and penetrates through the foundation reserved vertical ribs to be vertically inserted into the top of the foundation structure; the prefabricated bent cap is in lap joint with the top of the standard prefabricated pier column unit and extends into the hollow area of the standard prefabricated pier column unit through the cover beam reserved vertical ribs to be connected in an inserted mode. Expansion concrete is cast in situ in the sprue gate and the hollow area of the standard prefabricated pier column unit. The construction quality can be controlled in a cast-in-place and prefabricating combined mode, investment of formworks is omitted, the weight is low, installation is convenient and rapid, the aerial work time can be effectively shortened, the construction efficiency is improved, and the construction period is shortened.