23results about How to "Avoid construction" patented technology

A method for manufacturing a large-scale balance weight of a steel sheet pile ship lift, which simplifies the processing flow of the large-scale balance weight. The method first cuts a continuous casting steel blank into single pieces of steel sheet pile with grooves, and measures and marks the steel sheet pile. Then, two groups of steel sheet pile are assembled together by processing and pre-installing gap pads. After the preliminary assembly is completed, the balance weight is marked again, and then the locking bolt holes, pin shaft holes and lifting lug holes are drilled and processed, and the holes are counterbored. The next step is to cut and install the edge plates at the top and bottom of the grooves. The trial lifting is performed and the lifting shaft hole reinforcing plates are pre-installed to ensure the stability of the structure. The stop seat plates are further processed and installed to provide protection for the final stability. Finally, the overall performance of the balance weight is verified by the second trial lifting, and the remaining edge plates are pre-installed. The present application can realize efficient processing of large-scale steel sheet pile balance weight by using conventional general equipment.

The application relates to a kind of annular bracket stiff concrete beam column node construction device and construction method, including beam column construction mechanism and construction driving mechanism;Beam column construction mechanism includes multiple construction frames, multiple construction frames are arranged side by side between. First gear and second gear are driven to transmit by motor, so that second gear drives rotating rod and connecting column to rotate, connecting column drives another second gear to rotate by sleeve, so that two second gears and two gear ring assemblies are driven, two gear ring assemblies can drive steel beam column to rotate by locking assembly, the surface of steel beam column can be conveniently laid on steel beam column by workman in multiple faces, avoid subsequent still need to carry out steel beam column hoisting to adjust angle and continue construction, lead to the problem of tedious, so as to improve construction efficiency;Extension assembly is connected by slider and sliding sleeve and construction frame, so that construction frame can be unfolded by extension assembly, so as to extend the support length of steel beam column.

The utility model discloses an impedance type surge shaft structure which comprises a water delivery tunnel, one side of the water delivery tunnel is communicated with a large surge shaft through a connecting pipe, a connecting section is arranged between the water delivery tunnel and the connecting pipe, and an impedance hole is formed in the connecting section. The impedance hole comprises a first hole channel communicated with the water conveying tunnel and a second hole channel communicated with the connecting pipe, the inner diameter of the first hole channel is smaller than that of the water conveying tunnel, and the inner diameter of the second hole channel is gradually increased in the direction from the water conveying tunnel to the connecting pipe. The construction difficulty and the construction risk are reduced, the impedance holes are formed in the adit section to facilitate formwork erecting and concrete pouring, the connecting pipe vertical shaft can be directly constructed through a sliding formwork, construction safety and convenience are guaranteed, and the defects that a cantilever structure under a high vertical shaft is difficult to construct and large in construction risk are overcome.

The utility model relates to the field of control cabinets, in particular to a control cabinet suitable for an outdoor circuit breaker. The cabinet comprises a cabinet body, a cabinet door and a ventilation assembly. A plurality of metal joint mounting holes are formed in the bottom of the cabinet body, and vent holes are formed in the two transverse sides of the cabinet body; the cabinet door comprises two outer doors and an inner door, the outer doors are used for opening and closing the left bin and the right bin respectively, the inner door is located in the left bin, the outer doors are hinged to the cabinet body through hinges, outer door locks are arranged on the outer doors, the inner door is hinged to the cabinet body through hinges, and inner door locks are arranged on the inner door; the ventilation assembly is located on the outer side of the ventilation hole and comprises a ventilation hood arranged on the cabinet body and provided with a downward opening and a plurality of partition plates arranged on the inner side of the ventilation hood side by side, and the partition plates are distributed in an up-down staggered mode. According to the utility model, the mechanism cable can be completed in a factory, on-site cable construction is avoided, the operation is simpler, more convenient and more flexible, and foreign matters can be effectively blocked through the partition plates which are distributed in a staggered manner and prevented from entering the cabinet body.

The invention discloses a manufacturing method of a stacked and spliced steel plate type ship lift balancing weight. The machining process of a large complex balancing weight is simplified. The method comprises the following steps: firstly, cutting a continuous casting steel billet into a single laminated steel plate with a groove, and measuring and scribing the single laminated steel plate; and then, the two groups of overlapped and spliced steel plates are assembled together by machining and preassembling gap cushion blocks. After primary assembly is completed, secondary scribing is conducted on the balancing weight, then locking bolt holes, pin shaft holes and lifting lug holes are drilled and machined, and counter bore treatment is conducted on the locking bolt holes, the pin shaft holes and the lifting lug holes. And the next step is blanking and mounting edge sealing plates at the top and the bottom of the groove. And carrying out trial hoisting and preassembling a hoisting shaft hole reinforcing plate to ensure the structural stability. And the locking seat plate is machined and mounted, so that a guarantee is provided for final stability. And finally, the overall performance of the balancing weight is verified through secondary trial hoisting, and the remaining edge sealing plates are pre-installed. According to the method, efficient machining of the large stacked steel plate type balancing weight can be achieved by adopting conventional general equipment.

The invention provides a vertical take-off and landing method for a fixed-wing aircraft, and provides an innovative vertical take-off and landing platform to help the fixed-wing aircraft take off and land. The method comprises the steps that a vertical take-off and landing platform carries a loaded fixed-wing aircraft to vertically take off and lift off from the ground until the fixed-wing aircraft reaches a preset height; then, the vertical take-off and landing platform carries the fixed-wing aircraft to accelerate to a specified speed, so that the fixed-wing aircraft obtains a specified initial speed, and then the carried fixed-wing aircraft is released; the fixed-wing aircraft is formally started at a certain initial speed and at a corresponding height, and cruise flight is carried out according to a preset route and speed; after the fixed-wing aircraft successfully arrives at a target airspace, the vertical take-off and landing platform located at the target land lifts off, and while the fixed-wing aircraft is accurately captured, the fixed-wing aircraft shuts down a power device of the fixed-wing aircraft; and finally, the vertical take-off and landing platform can stably descend the fixed-wing aircraft and the load thereof to the ground according to a preset flight path.

The utility model discloses a cantilever long rod member deflection measuring system, which is arranged in a detection room and comprises a control cabinet, a support, a monorail crane, a first box staff, a second box staff and a foot stool, the control cabinet, the support, the first box staff and the foot stool are arranged on the ground of the detection room, a lifting platform is mounted on the support, and the monorail crane is mounted on the lifting platform. The lifting platform is provided with a driving device, the driving device is provided with a connecting seat used for installing a to-be-detected blade, the second box staff is used for being installed on a wingtip of the to-be-detected blade, the monorail crane is installed on a roof of the detection room, the monorail crane is provided with a lifting appliance, and the foot stool is arranged on the ground of the detection room. A gradienter is installed on the foot stool, and the control cabinet is in communication connection with the lifting platform, the driving device and the single-rail travelling crane. The device is simple in structure, and the reliability is improved.

The present application relates to the field of processing inferior residual oil, and discloses a method for processing inferior residual oil, which comprises the following steps: (1) performing a mild catalytic cracking reaction on inferior residual oil I to obtain a mild catalytic cracking reaction product; (2) separating the mild catalytic cracking reaction product to obtain catalytic cracking heavy oil; (3) performing a hydrodesulfurization reaction on the catalytic cracking heavy oil to obtain a hydrodesulfurization reaction product; and (4) separating the hydrodesulfurization reaction product to obtain hydrogenated heavy oil. The method for processing inferior residual oil provided by the present application combines catalytic cracking heavy oil hydroprocessing and catalytic cracking, can maximize the production of light oil and low-sulfur marine fuel oil from inferior residual oil, and thus reduces the production cost of the light oil and low-sulfur marine fuel oil prepared by the method.

This invention belongs to the field of mining engineering technology, specifically disclosing a method for subsequent backfilling of a goaf in a gently dipping thick ore body. The backfilling method involves dividing the ore body vertically into multiple intermediate sections, each intermediate section into multiple segments along the strike, each segment into multiple ore block units along the dip, and each ore block unit into multiple stopes. Segmental vein roadways are arranged along the strike of the floor, and ore extraction ramps are arranged along the dip from these segmental vein roadways. Roof-cutting vein roadways are arranged along the strike of the roof, and roof-cutting ramps are arranged along the dip from these roof-cutting vein roadways. An ore extraction access road is constructed along the strike from the ore extraction ramps, and a drilling roadway is constructed along the strike from the roof-cutting ramps. Downward drilling is used in the drilling roadways to create blast holes and blast the ore, which is then extracted through the ore extraction access road. After mining is completed, a goaf is formed. Backfilling pipelines are laid through the roof-cutting vein roadways, roof-cutting ramps, and drilling roadways to the goaf before backfilling. This invention features reduced mineralization, high efficiency in mining, low cost, and high safety in stope mining.

The application relates to a kind of nitrogen filling devices for tobacco storage, comprising: high-pressure fan, air supply pipeline, exhaust pipeline, nitrogen pipeline, air inlet pipeline, exhaust pipeline; the air inlet end of air supply pipeline is connected with the air outlet of high-pressure fan, the air outlet end of air supply pipeline is connected with nitrogen pipeline, and the first valve is arranged on air supply pipeline; the air inlet of exhaust pipeline is connected with the air inlet of high-pressure fan, and the air outlet of exhaust pipeline is connected with nitrogen pipeline, and the second valve is arranged on exhaust pipeline; the air inlet end of nitrogen pipeline is suitable for connecting the air outlet of nitrogen generator, the air outlet end of nitrogen pipeline is connected with more than two sealed tobacco stacks, and the third valve is arranged on nitrogen pipeline; air inlet pipeline is connected with exhaust pipeline, and the fourth valve is arranged on air inlet pipeline; exhaust pipeline is connected with air supply pipeline, and the fifth valve is arranged on exhaust pipeline, the application can switch three working modes of air exhaust, air supply and nitrogen filling by adjusting the valve, and greatly reduces the working intensity of personnel.

The utility model discloses an adjustable hanging fence safe operation platform, including operation platform, adjustable derrick and top truss, operation platform includes platform steel sheet and platform fence, and the bottom of platform fence is connected with the edge position of platform steel sheet, adjustable derrick includes channel steel, I -beam and adjusting bolt, and I -beam is movably arranged in channel steel, channel steel and I -beam are connected through adjusting bolt that sets up in adjusting screw hole respectively and is set up adjusting screw hole respectively, and the bottom of adjustable derrick is connected with platform fence, and top truss is connected with the top of adjustable derrick, and it does not need the complex system of electrical control elevator, steel wire rope, safety lock and the like, and it is beneficial to the stress concentration of hanging fence safe operation platform in multidirectional direction to be conducted to pier body side and pier top, thereby avoiding the complex counterweight problem of traditional hanging basket and the risk of unbalanced overturning, and improving safety and stability.

The utility model relates to the technical field of dust falling devices, and discloses a low-noise, energy-saving and environment-friendly dust falling device for green building construction, which comprises a water tank, a turntable is mounted at the top of the water tank, a nozzle is connected onto the turntable, a driving device is arranged at the bottom of the nozzle, and a clamping block is arranged on the right side of the water tank. According to the low-noise, energy-saving and environment-friendly dust falling device for the green building construction, the rotating shaft is movably connected with the rotating disc, the angle of the dust falling device can be conveniently adjusted, meanwhile, through cooperation of clamping blocks, the angle of a nozzle can be conveniently fixed, convenience is provided for manual operation, meanwhile, through cooperation of a water leakage groove, liquid drops dripping on the nozzle can be recycled, and the dust falling device is convenient to use. The problem that liquid flows to the ground to affect construction is avoided.

This invention relates to the field of data encryption and decryption technology, and particularly to a blockchain data sharing encryption and decryption method and system. The method includes: creating a blockchain composed of several nodes; obtaining the user terminal corresponding to the blockchain; creating a source verification pair corresponding one-to-one with the user terminal, wherein the source verification pair consists of a registry and an identification code; storing the identification code in the user terminal; writing all registry entries into the blockchain; and reading transaction data between the blockchain and the user terminal to obtain at least first data and second data. This invention, by setting encryption key pairs, can encrypt and manage transaction data, avoiding the exposure of plaintext data and improving the security of sensitive information storage. It not only effectively prevents transaction data from being tampered with and illegally decrypted, but also ensures that the transaction data uploaded to the blockchain maintains minimal exposure management in a multi-node environment, significantly improving the secure storage capability of blockchain data.

The present invention discloses a suspended sinking vertical shaft construction process, comprising the following steps: (A) excavating a starting section space and constructing a locking structure, assembling or pouring a bottom sealing blade foot; (B) injecting mud into the starting section space and installing a submersible excavator; (C) the submersible excavator starts working, and transports rock and soil to a mud purification device on the ground through mud circulation, and the bottom sealing blade foot and the shaft wall float on the mud by buoyancy; (D) assembling or pouring a new ring shaft wall, and installing a pressure pipe and a steel wire rope; (E) injecting water into the annular space of the pressure pipe and the shaft wall to sink the shaft wall; (F) taking out the submersible excavator, pouring bottom sealing concrete into the bottom of the shaft, and filling the space behind the wall with cement mortar for cementing; (G) pumping out mud and water, and removing the pressure pipe and the tensioning steel wire rope; (H) closing the hole of the bottom sealing blade foot, and injecting grouting water to seal the space between the bottom sealing blade foot and the bottom sealing concrete.

The invention relates to the technical field of residence exhaust ducts, in particular to a residence externally-hung assembly type exhaust duct system which comprises externally-hung exhaust ducts communicated with exhaust ports of all floors and vertically extending along the outer wall of a building, and flow guiding and equalizing devices arranged at the exhaust ports of all the floors. The fireproof check valve is arranged at the air inlet end of the flow guiding and equalizing device; the anti-backflow hood is arranged at the top of the exhaust passage; the exhaust passage comprises a plurality of prefabricated concrete exhaust pipe sections, and the upper portions of the prefabricated concrete exhaust pipe sections are connected with the building outer wall in a welding and / or fastener fastening mode. A connecting steel sleeve coaxial with one precast concrete exhaust pipe section is arranged at the top end of the precast concrete exhaust pipe section, a metal reinforcing hoop is arranged between the inner wall and the outer wall of the precast concrete exhaust pipe section, and the connecting steel sleeve is clamped with the inner wall of the bottom end of the other precast concrete exhaust pipe section in a matched mode. The exhaust passage is convenient to mount and high in typhoon resistance and earthquake resistance, the appearance of the exhaust passage and a building body can be coordinated and unified, and construction of an outdoor exhaust passage in a cast-in-place mode is avoided.

An anti-vandalism mounting system for monitoring water physical variables in open channels, which comprises: a first member, comprising a base with a plurality of perforations to introduce a plurality of anchoring means for fixing the first member to a system installation surface; a second member, which is fixed on the first member of the system by a plurality of anchoring means; a third member, arranged externally, which is attached to the first and second members from inside the system by anchoring means; and a fourth member, pivotally arranged in the lower part of the third member; wherein the first member comprises a plurality of compartments to house a plurality of devices for the operation of the system and for the monitoring of physical variables to be protected by the system; and wherein the system comprises an energy generating device and a plurality of safety devices, so that the fourth member is fixed to the third member of the system. A procedure for assembling an anti-vandalism mounting system for monitoring water physical variables in open channels.

The utility model relates to a cold shrinkage type climbing increasing umbrella, insulating porcelain bottle and disconnecting switch, wherein the cold shrinkage type climbing increasing umbrella comprises: a climbing increasing umbrella, which comprises an umbrella skirt main body; a supporting body, which comprises a silk tube formed by winding a single fine wire according to a preset thread shape; the silk tube is attached to the inner wall of the umbrella skirt main body; the end of the silk tube is reserved with a silk head; wherein, in the expanded state of the climbing increasing umbrella, the umbrella skirt main body is sleeved on the supporting body, and the climbing increasing umbrella is supported and opened by the supporting body; the silk head is pulled to separate the fine wire, the supporting body is disassembled, and the climbing increasing umbrella is contracted. The utility model effectively increases the creepage distance of the insulator porcelain bottle, can further improve the insulating level of the porcelain bottle, and has no open fire and high-temperature heat source in the whole installation process, completely avoids the fire risk, and makes the climbing increasing umbrella safe in construction in the explosion-proof places such as the transformer substation and the oil refinery.

This invention discloses a high-temperature resistant, flame-retardant armored cable assembly, including a cable, a threaded sleeve and a fixing seat fitted onto the cable, the threaded sleeve and the fixing seat being threadedly connected; a sliding tube is slidably disposed on the fixing seat, an inner fastener is slidably disposed on the sliding tube, a sliding rod is slidably disposed on the fixing seat, a guide block is fixedly disposed on the sliding rod, a guide groove is disposed on the inner fastener, the guide block and the guide groove are adapted to each other, and the sliding rod abuts against the threaded sleeve; it also includes an anti-tamper component to restrict the rotation of the threaded sleeve after the cable is fixed; when fixing the cable, the threaded sleeve pushes the sliding rod to slide by screwing the threaded sleeve into the fixing seat, and under the action of the guide block and the guide groove, the inner fastener opens and catches the inside of the distribution box, fixing the cable at the hole in the distribution box, which not only improves the fixing efficiency, but also avoids construction from inside the distribution box, and improves the safety after the cable is fixed by restricting the rotation of the threaded sleeve by the anti-tamper component.

The application relates to a theoretical power generation amount determination method and device, a server and a photovoltaic power generation system. The power generation amount determination method is applied to a photovoltaic power generation system, the photovoltaic power generation system comprises a standard group string and a target group string corresponding to the standard group string in one-to-one mode, the standard group string is a maintained group string, and the target group string is a non-maintained group string. The method comprises the following steps: acquiring first power data of the standard group string in a current period; inputting the first power data into a preset power relationship model, so that the power relationship model outputs corresponding second power data of the target group string in the current period according to the first power data, wherein the mathematical form of the power relationship model is a monomial polynomial regression analysis model; and determining the power generation amount of the corresponding target group string in the current period according to the second power data. The power generation amount of the group string can be accurately determined at low cost.

The utility model provides an unwinding mechanism of a photogravure press, which belongs to the technical field of photogravure presses and comprises a bottom plate, a fixed seat is fixedly connected to the surface of the bottom plate, a movable seat is arranged on one side, far away from the fixed seat, of the bottom plate, a mounting plate is fixedly connected to one side of the fixed seat, and a first motor is mounted on the surface of the mounting plate. The first motor penetrates through the fixing base and is fixedly connected with a rotating shaft, through cooperative use of the moving base and the moving mechanism, a user can conveniently change the position of the moving base so as to replace the roller, and the problem that the burden of workers is increased due to the fact that the operation difficulty is large when an unwinding structure is replaced in a current scheme is solved; according to the unwinding mechanism of the gravure printing machine, the convenience of the unwinding mechanism of the gravure printing machine is improved, the device can stably unwind a printing film along with the change of the size of the film through the arrangement of the pressing mechanism, subsequent printing is avoided, and therefore the efficiency of the unwinding mechanism of the gravure printing machine is improved.

The utility model relates to the technical field of building construction, in particular to a constructional column concrete pouring device which comprises a hopper, a flow guide pipe is connected to the bottom of the hopper, two fixing plates are arranged in the middle of the hopper, fixing base tables are arranged at the upper ends of the fixing plates, hopper fixing devices are arranged on the fixing base tables, and each hopper fixing device comprises a first fixing arm. One end of the first fixing arm is detachably connected with the fixing base table, a base plate is arranged at the other end of the first fixing arm, the back face of the base plate is fixedly connected with the first fixing arm, two sets of clamping mechanisms are arranged on the front face of the base plate, each clamping mechanism comprises a clamping base, a second fixing arm and a clamping hoop, and the clamping bases are fixedly arranged on the front face of the base plate and provided with rotating shafts. According to the hopper fixing device, the hopper can be fixed to the inner side of a scaffold, an operator is prevented from standing on the edge for construction, and potential safety hazards are eliminated.

The invention discloses a method and a system for determining a distance between toxic gas leakage and railway safety protection, and in the whole scheme, a more accurate and dynamic evaluation scheme is provided by comprehensively applying a railway facility vulnerability analysis method, an accident consequence method and a quantitative risk evaluation method. According to the method, physical and chemical characteristics, leakage conditions and meteorological conditions of toxic gas are considered, and vulnerability analysis is introduced, so that the safety of railway workers and passengers can be effectively protected in a toxic gas leakage event; meanwhile, the invention also aims to provide real-time data integration and processing capability so as to improve the accuracy and the real-time performance of evaluation and ensure that a reliable evaluation result and an emergency response plan can be quickly generated in an emergency. In this way, a scientific basis can be provided for the safety protection distance of railway facilities, and therefore the safety and reliability of railway transportation are improved.

An anti-vandalism mounting system for monitoring water physical variables in open channels, which comprises: a first member, comprising a base with a plurality of perforations to introduce a plurality of anchoring means for fixing the first member to a system installation surface; a second member, which is fixed on the first member of the system by a plurality of anchoring means; a third member, arranged externally, which is attached to the first and second members from inside the system by anchoring means; and a fourth member, pivotally arranged in the lower part of the third member; wherein the first member comprises a plurality of compartments to house a plurality of devices for the operation of the system and for the monitoring of physical variables to be protected by the system; and wherein the system comprises an energy generating device and a plurality of safety devices, so that the fourth member is fixed to the third member of the system. A procedure for assembling an anti-vandalism mounting system for monitoring water physical variables in open channels.