24results about How to "Reduce working at heights" patented technology

The invention provides a heat preservation type building steel structure, and relates to the technical field of building steel structures. The tightening fixing mechanism is mounted on the surface of the supporting mechanism; the left and right ends of the heat-insulating material mounting mechanism are connected with the supporting mechanism and the tightening and fixing mechanism; the supporting and connecting assembly is installed on one side of the supporting mechanism. The button rotation control mechanism is installed in the supporting and connecting assembly. One end of the butt joint mechanism is connected with the button rotation control mechanism; the limiting releasing mechanism is connected with the docking mechanism; thermal insulation materials can be conveniently placed, and the thermal insulation effect is improved; multiple groups of screws can be controlled to be automatically butted and inserted, the multiple groups of screws are controlled at one time to complete fastening and fixing, the construction speed is high, and the danger is reduced; the problems that the distance between supporting rod pieces of a building steel structure is large, heat preservation materials are troublesome to install, the connecting mode depends on a large number of screws for fixing, construction complexity is increased, construction time is shortened, working efficiency is reduced, and certain danger exists are solved.

The utility model relates to a porcelain column circuit breaker opening and closing position debugging tool which comprises a tool cylinder installed on an operating mechanism, the upper end of the tool cylinder is connected with an arc extinguish chamber, a tool connecting rod is installed in the tool cylinder and extends in the vertical direction, the length of the tool connecting rod is larger than that of the tool cylinder, and the tool cylinder is connected with the tool connecting rod. The upper end of the tool connecting rod is connected with an arc extinguish chamber transmission part, the lower end of the tool connecting rod is connected with an output shaft of the operating mechanism, a gasket is installed on the output shaft of the operating mechanism, the upper end face of the gasket is connected with the tool connecting rod, and the height difference between the tool connecting rod and the tool cylinder is equal to the height difference between the supporting column and the pull rod. The upper end and the lower end of the tool cylinder are respectively provided with a connecting flange, the upper end of the tool cylinder is connected with the arc extinguish chamber through the connecting flange, the lower end of the tool cylinder is connected with the operating mechanism through the connecting flange, and the high-altitude operation problem can be solved on the premise of ensuring the opening and closing positions, and the convenience and the safety of installation are improved.

The invention provides a construction method of a roof frame structure concrete decoration member, which comprises the following steps: S1, prefabricating the concrete decoration member, arranging a bottom steel plate at the bottom of the concrete decoration member, and pre-burying a connecting steel bar in the concrete decoration member; s2, a roof steel plate is arranged at the position, where the concrete decoration component is to be installed, of the roof; s3, through welding of the bottom steel plate and the roof steel plate, the concrete decoration component is fixed to the roof; s4, reinforcing steel bars of the frame structure and an outer formwork are arranged on the roof, and the connecting reinforcing steel bars and the reinforcing steel bars of the frame structure are fixed; and S5, the outer formwork is poured, so that the frame structure is connected with the top of the concrete decoration component. By the adoption of the method, cast-in-place concrete decoration components are not needed, only a cast-in-place frame structure needs to be constructed on a building construction site, and arrangement of steel bars and formworks is simplified for the frame structure with many concrete decoration components.

The invention relates to an inverted pushing installation method for a large converter. A lower section of a converter shell, a middle section of the converter shell and a backing ring are divided into combined modules, an upper section of the converter shell is divided into a first single module, and a tilting device is divided into a second single module; the assembled combined module is hoisted to a jacking adjusting device composed of a hydraulic portal frame and a sliding rail, the first single module is arranged on a hydraulic module vehicle, and the combined module and the first single module are assembled together through cooperation of the jacking adjusting device and the hydraulic module vehicle to form a converter body; the converter main body is downwards transported to a converter mounting position by the hydraulic module vehicle and is mounted in place; and the second single module is integrally lifted and mounted in place through the hydraulic gantry lifting device. Compared with an existing installation method, the method has the advantages of being high in installation efficiency, low in construction cost, high in installation precision, high in safety and reliability, high in automation degree, high in construction equipment universality and the like.

The invention discloses an integral dismantling method for a front guide beam in incremental launching construction through a cable-stayed buckling and hanging method. The lug plate is installed at the end of the end, connected with the guide beam, of the main beam, so that the main beam and the guide beam are in limiting fit which can only move relatively in the height direction, the other end of the guide beam is tensioned through the buckling cable of the buckling tower, and meanwhile the end, connected with the main beam, of the guide beam is jacked; under the condition that the jacking force of the jacking jack and the tensioning force of the buckle cable are applied to the two ends of the guide beam correspondingly, the guide beam is jacked upwards in the horizontal state till the elevation of the bottom of the guide beam is consistent with the elevation of the top of the main beam, the guide beam can be moved to the main beam under the action of the tensioning force of the buckle cable, and therefore the guide beam can be moved to the main beam. And then the guide beam is moved to the rear through sliding fit of the guide beam and the main beam, and overall dismantling of the whole guide beam is achieved. By means of the method, aerial work in the guide beam dismantling work can be effectively reduced so as to reduce the construction safety risk, and overall dismantling of the guide beam is achieved so as to improve the construction efficiency.

The utility model provides a kind of sound-absorbing crystal wood board hidden type hanging assembly, including suspension mechanism, the bottom fixed mounting of suspension mechanism is equipped with fixed disc, the both sides of fixed disc are fixedly installed with suspension frame, during the application of this technical solution, its hidden structure by setting suspension mechanism and clamping mechanism, will be arranged in the sound-absorbing crystal wood board body top with the components such as suspension plate, hexagonal sleeve, side frame, limit card group, fixed plate is fixed in the top four corners of board, clamping operation is completed in top, so that during use, connection component cannot be seen from side and below, avoid component bare damage decorative integrity, while board side edge has no any shelter structure, can be directly attached when splicing, need not reserve installation space, to reach the effect of improving decorative aesthetic degree and eliminating splicing gap, solve the problem of side edge component bare, splicing gap influence sound-absorbing performance in prior art.

The utility model relates to the technical field of steel structure modularization construction, in particular to a steel structure platform modularization construction stand column rapid positioning and butt joint structure which comprises a first node form and a second node form. The node form I is arranged at the corner part of the platform and on a middle upright post and is used for quickly positioning; the second node form is arranged on a stand column installed on the platform except the first node form and used for rapid connection, and the first node form comprises a first upper column node and a first lower column node; and the first upper column node is mounted above the first lower column node. The first upper column joint comprises a reinforcing rib plate, an insertion tip structure and a butt joint panel. The steel structure platform has the advantages that the steel structure platform and the storage tank can be constructed in parallel, and the construction period is shortened; secondly, the platform is constructed in a modularized mode, and construction efficiency and construction precision are improved; and thirdly, high-altitude operation is reduced. And fourthly, the stand column joints are simple in structure, rapid positioning is achieved, and effective butt joint is provided.

This invention provides a universal cross bracing structure and construction method suitable for inclined cable tower construction, including a cross bracing body and construction platforms at both ends of the cross bracing body. The cross bracing body includes a standard section and transition sections installed on both sides of the standard section, with non-standard sections at the outer ends of the transition sections. The non-standard sections are hinged to the hinged sections. Both the ends of the non-standard sections and the ends of the transition sections have butt joints. Limiting components are provided on the butt joints of the non-standard sections, and a limiting structure that cooperates with the limiting components is provided on the construction platform, allowing displacement of the non-standard section butt joints only in the horizontal direction, and no displacement in the vertical direction. This invention can adapt to the construction of inclined cable towers at any angle. The cross bracing can provide various length combinations to suit different tower spacing requirements. It is flexible in operation, has few limitations, and the connections between components are convenient, minimizing high-altitude work. Most components are bolted together, making installation and dismantling convenient and construction efficiency high.

The invention discloses a continuous dismantling method for a guide beam before incremental launching construction, which is characterized in that a hanging bracket fixing device and a hanging bracket structure are mounted on a cover beam to serve as a fixing foundation of jacking equipment and a counter-force support portal, so that the jacking equipment and the counter-force portal can respectively form support at the bottoms of two different guide beam sections; in the dismantling process, the first guide beam section located at the front end can be jacked through jacking equipment so that the first guide beam section can be lifted to the top of the second guide beam section located at the rear end, and then the first guide beam section is dragged so that the first guide beam section can slide to the rear portion along the second guide beam section in a sliding mode; therefore, the guide beam is demounted section by section while pushing is carried out; according to the method, high-altitude operation in the guide beam dismantling work can be effectively reduced so as to reduce the construction safety risk, and continuous segmented dismantling of the guide beam is achieved so as to improve the construction efficiency.

A method for constructing connecting shaft passages during the tunnel lining construction stage includes the following steps: A vertical shaft is formed using rotary drilling and mud slurry wall support, with a depth greater than the tunnel bottom; support steel pipes are hoisted into the shaft, and the bottom of the support steel pipes is sealed with concrete; the gap between the support steel pipes and the shaft is grouted and backfilled; a horizontal connecting passage is constructed, connecting the tunnel to the support steel pipes in the shaft; the lining structure is constructed inside the tunnel, requiring openings at the portal of the horizontal connecting passage; after the lining structure is completed, the openings, the horizontal connecting passage, and the shaft are sealed. This method enables the rapid establishment of connecting shaft passages to increase the working face during the lining construction stage of deep-buried long-distance water conveyance tunnels, and features low cost, short construction period, and high safety.

The invention discloses a hoisting device and process for hoisting a large section of a steel box girder, and relates to the technical field of bridge construction, the hoisting device comprises a hoisting mechanism, a welding mechanism is arranged on the outer side of the hoisting mechanism, and the bottom of the welding mechanism is fixedly connected with the top of the hoisting mechanism; the lifting mechanism comprises a bridge, piers are fixedly connected to the bottom of the bridge, pre-assembled sections are fixedly connected to the outer side of the bridge, stand columns are fixedly connected to the tops of the pre-assembled sections, inclined struts are fixedly connected to the outer sides of the stand columns, the tops of the multiple stand columns are fixedly connected with the same lifting platform, and the same lifting platform is fixedly connected to the tops of the multiple stand columns. The top of the lifting platform is fixedly connected with a hydraulic lifter, and the bottom of the hydraulic lifter is fixedly connected with a steel strand. According to the hoisting device and process for hoisting the large section of the steel box girder, the main bridge steel box girder is divided into a plurality of sections, and the middle large section is integrally hoisted and mounted, so that high-altitude scattered splicing is avoided, and the field welding workload is greatly reduced.

The invention provides an assembling method for a newly-added cantilever steel structure of an existing concrete beam-column joint. Comprising the steps that the surface of an existing concrete beam-column joint (1) is cleaned, and the existing concrete beam-column joint (1) is wrapped with a steel plate to form a steel-encased enclosure (2); an upper stiffening steel plate (6) and a lower stiffening steel plate (7) are arranged in the steel square tube short column (3); the cantilever steel beam (5) and the steel square tube short column (3) are connected in a bolt welding mode in a factory processing workshop to form a whole; the cantilever steel beam (5) is lifted to the installation height, and the steel square tube short column (3) and the steel-encased enclosure (2) are subjected to enclosure welding; and the high-performance grouting material (4) is poured into the steel square tube short column (3) through a preformed hole of the upper stiffening steel plate (7). The steel-encased enclosure is additionally arranged on the existing beam-column joint, so that the bearing capacity of the existing beam-column joint is enhanced under the condition that the integrity and the bearing capacity of the existing beam-column joint are not damaged at all; the method adopts assembly type connection, and has the advantages of convenience in construction, reliable connection quality and the like.

The utility model relates to the field of floating crane mounting structures, in particular to a truss type boom carrier roller auxiliary mounting tool which comprises a supporting frame, a carrier roller and a hoop. The whole structure is simple, manufacturing is easy, when the variable-amplitude steel wire rope is installed, the steel wire rope is dragged through the carrier rollers, heaving of the variable-amplitude steel wire rope can be effectively prevented, abrasion of the arm support structure is avoided, erecting of scaffolds is greatly reduced, and the project period is shortened; the supporting frame is installed on the arm frame in a hoop mode, installation is firm, disassembly is convenient, and meanwhile laying of a large number of scaffolds and aloft work can be reduced; according to boom structures of different projects, the boom can be continuously used on all subsequent crane projects after being simply modified, and the practicability is high; the scaffold channel with the width of about 500mm is laid between the carrier rollers, so that constructors can conveniently check the problems of interference, deflection and the like during rope threading.

The utility model relates to a control panel suitable for a methanol fuel cell system, which comprises a main frame, an outer frame is sleeved on the main frame, the top end of the main frame is connected with a connecting frame used for installing a control panel, the connecting frame is connected with a sealed control panel box, the control panel box is of a convex hollow structure, and the outer frame is sleeved on the main frame. An LCD screen, a power button and a communication control panel are sequentially connected into a cavity in the front end of the control panel box of a convex hollow structure from left to right, a mounting groove hole used for mounting an SD card and / or an SIM card is formed in the upper portion of the front end of the control panel box, and connecting holes connected with the main frame are formed in the two sides of the rear end of the control panel box. When the front end of the control panel box is pulled outwards, the installation groove hole protrudes out of the main frame. According to the utility model, the remote communication can be realized, the nearby operation of operators is reduced, and the purpose of improving the working efficiency is achieved.

The invention provides an ethylene unit three-machine stress-free piping construction method which comprises the following steps: dividing a connecting pipeline into a horizontal section, a vertical pipe section and an adjusting section according to a pipeline diagram, and respectively prefabricating the horizontal section, the vertical pipe section and the adjusting section; the adjusting section, the horizontal section and the vertical pipe section are assembled and spliced in sequence by means of hanging a dial indicator and assisting a rack; the welded junction of the pipeline is moved to the final welded junction position and welded through symmetrical welders, pipeline installation and connection are in a free vertical state, stress caused by pipeline installation is eliminated, and the installation precision and the construction progress of connection of equipment and the pipeline are effectively guaranteed.

The utility model discloses an integral lifting appliance for a roof steel structure, which belongs to the field of building construction lifting, and adopts the technical scheme that the integral lifting appliance comprises a lifting cross beam, the lifting cross beam is formed by splicing and welding four horizontal cross beams, a plurality of lifting lugs are arranged on the lifting cross beam, a plurality of lifting hooks are arranged below the lifting cross beam, and the lifting hooks are arranged on the lifting cross beam. The lifting hooks are symmetrically installed below two of the horizontal cross beams, the lifting cross beams are movably connected with the lifting hooks in a pin shaft mode, detachable anti-unhooking assemblies are arranged at the tail ends of bent hooks of the lifting hooks, and the purline lifting device has the effects of improving purline lifting efficiency and reducing high-place operation.

The present application relates to the technical field of shipbuilding, and provides an auxiliary positioning device for optimizing a shipbuilding general assembly process and a method thereof, which is especially suitable for the research and development project of optimizing the shipbuilding general assembly process of a bulk carrier, and comprises: a base device including a mounting base and a horizontal adjusting mechanism arranged on the mounting base; a three-dimensional adjusting device including an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis lifting mechanism, which are used to realize the translation and lifting of the positioning device in three-dimensional space; a positioning guide device used to realize the accurate butt joint between two segments; a laser measuring device including at least three laser ranging sensors and a laser tracker; a central control device used to receive the measurement data of the laser measuring device and control the three-dimensional adjusting device to make accurate adjustment; and a locking device arranged between the three-dimensional adjusting device and the positioning guide device. The positioning device has high positioning accuracy, high safety, strong adaptability and good dynamic stability.

The application provides a large-span under-hanging arc-shaped steel truss construction method, which comprises the following steps: firstly, a three-dimensional model is established and construction condition simulation is performed to optimize structure design; then, an adjustable arc-shaped assembling jig frame is erected on the ground, arc-shaped main steel truss assembling is completed on the arc-shaped assembling jig frame, a boom, a conversion beam and an under-hanging structure are installed to form an integrated whole lifting unit; then, a hydraulic synchronous lifting system is installed on the top of a bearing steel column to perform graded lifting and monitoring, and is fixed and installed after lifting in place; finally, graded unloading and structure monitoring are performed, and subsequent structure construction and completion acceptance are performed. The application adopts ground arc-shaped jig frame whole assembling, and the arc-shaped truss is formed at one time, so that linear precision is high, deviation is small, large-area full scaffold is cancelled, materials are saved, space is released, multi-specialty cross operation can be realized, high-altitude operation is greatly reduced, safety risk is reduced, construction efficiency is improved, structure stress is ensured to be uniform, deformation is controllable, and construction quality is stable and reliable.

The utility model discloses a water conservancy project construction fence relates to water conservancy engineering technical field, include: support column subassembly and a plurality of corrugated baffle subassembly, the corrugated baffle subassembly is installed between two support column subassembly, and the bottom between two support column subassembly is installed with yellow board, the rear side of support column subassembly is installed with inclined support subassembly. The utility model discloses a corrugated baffle subassembly is installed from the lower end of the front side of support column subassembly one by one upwards to the top one by one with the corrugated baffle subassembly from the bottom and pushes, improves installation efficiency and reduces aerial work.

The invention provides an outer wall hole plugging device and a using method, the outer wall hole plugging device comprises a plugging part and a plugging rod, the plugging part comprises a plurality of plugging plate assemblies, and each plugging plate assembly is rotationally connected with the plugging rod to be folded or unfolded; each closure plate assembly may also be designed to be foldable or deployable. According to the using method of the outer wall hole plugging device, the plugging component is folded on one side of the outer wall, the folded plugging component penetrates through the hole through the plugging rod, and then the plugging component is unfolded to plug the hole on the other side of the outer wall. The outer wall hole plugging device has the beneficial effects that one person can rapidly plug outer wall holes, the plugging quality can be guaranteed, meanwhile, high-altitude operation is reduced, the structure is simple, operation is convenient, the plugging efficiency and the plugging quality can be improved, and meanwhile the construction safety is improved.

A support beam for lifting a heat absorber is provided, which is arranged at the bottom of the heat absorber and includes: a first beam arranged at the top, a second beam arranged at the bottom, and a support beam push-pull device arranged at the bottom of the heat absorber, the first beam and the second beam are spaced a certain distance apart and connected as a whole by a first screw, the support beam push-pull device is adjacent to the support beam and movably connected, the support beam push-pull device includes a push device slide rail, a push device bracket, and a portable hydraulic power device, wherein the push device slide rail is welded to the steel beam at the bottom of the heat absorber at the heat absorber assembly field, the push device bracket is installed under the steel beam at the bottom of the heat absorber, and the push device bracket slides under the push of the portable hydraulic power device.

This invention provides a bridge-building machine and its operating method, relating to the field of bridge-building machines. The bridge-building machine includes at least two parallel main beams, the ends of which are supported on corresponding traveling devices. Each traveling device includes a traveling beam anchorable to the top surface of the bridge. The traveling device also includes two hanging wheel assemblies, at least two supporting wheel assemblies, and a drive assembly. The drive assembly is mounted on the traveling beam and includes a drive motor and gears, the gears meshing with a rack at the bottom of the main beams. Hydraulic support legs are also provided on both sides of the main beams, capable of supporting the ground. This invention improves the stability and efficiency of the bridge-building machine's movement.

The invention discloses a steel cover beam frame high support base plate and a mounting method thereof, and belongs to the technical field of bridge building construction support base plate mounting. According to the technical scheme, the device comprises a support base plate and a connector arranged at the bottom of the support base plate, a lead screw is arranged at the bottom of the connector, the bottom of the lead screw is connected with a cover beam top plate, and an upper opening nut and a lower opening nut are arranged on the cover beam top plate. The method has the beneficial effects that in a machining factory, the elevated support base plates and the steel cover beam are connected into a whole through the lead screws, the relative position of the whole support base plate group is measured, the flatness of the support base plates is machined, the precision and the connecting strength of the support base plates and the cover beam are higher than those of secondary installation of the steel reinforcement framework erected at the bridge site, and the site construction precision and quality are also guaranteed; and the overhead working amount of the bridge site is reduced.

The utility model discloses a kind of construction device for improving the construction efficiency of V-bridge triangle area, comprising: pier seat, bottom connection cushion cap or pier column, form Y-type pier structure;Oblique leg, contain part pier top box girder consolidation section, adopt low-position cast-in-place or prefabricated assembly, and connect with pier seat by vertical hinge;Triangular area top box girder section, through support assembly construction, connect with oblique leg through embedded steel bar, support assembly includes first support and second support;Oblique leg post-cast segment, for closing vertical hinge area, make oblique leg and pier seat form integral force structure;Box girder closure section, connect through rigid frame, complete triangular area integration;Vertical rotation system, for vertical rotation construction of oblique leg;Limiting block, welded on steel bar, prevent vertical rotation overreach.The utility model uses low-lying cast-in-place method to construct oblique leg containing part pier top box girder consolidation section, then V-structure triangular area construction method of vertical rotation and triangular area top box girder section closure, reduce the risk of high-position operation and support overturning.