1852 results about "Steel frame" patented technology

A bilateral expanding excavation construction method for a middle pilot tunnel of a tunnel is provided. Section or excavation width of the middle pilot tunnel is generally not larger than that of a common double-line or double-lane tunnel; a step construction method is adopted, and the construction method is the same as that of a common double-line or double-lane tunnel; and the construction method is familiar to constructors, and the construction difficulty is avoided. A primary support section of the middle pilot tunnel can be expanded and excavated after being closed by at least 3 meters; if a side tunnel face is stable, and the problem of the operation height of manual installation of a steel frame and an anchor rod is solved, one-time excavation and support can be achieved, and the construction is more convenient; or otherwise, a side tunnel is excavated according to a two-step or three-step method. The primary support of the middle pilot tunnel can be timely closed; the primary support of the side tunnel and the primary support of the middle pilot tunnel can be completely connected in sequence, and various errors and deformation influences of surrounding rocks and the supportare left at an inverted arch part for treatment; and the construction progress is basically the same as that of the common double-line or double-lane tunnel.

The invention discloses a tunnel construction method for a large deformation section of soft rock, and relates to the technical field of tunnel construction for the large deformation section of the soft rock, and the tunnel construction method for the large deformation section of the soft rock comprises the following steps: drilling shallow large-aperture stress release holes and deep small-aperture stress release holes to form a layered release system; differential pressure grouting is conducted around the stress release holes, and a deep reinforcing ring and a shallow coupling ring are formed; a steel frame is erected, and a three-stage stretching locking bottom supporting assembly is installed to form a closed supporting ring; the bottoms of the adjacent steel frames are crossly connected through prestressed pull rods to form an integral rigid grid; a secondary lining is constructed after the longitudinal attenuation conduction period is judged according to the surrounding rock deformation spatial-temporal characteristics; inverted arch first and then arch wall segmented pouring is adopted, and a delayed expanding agent is doped into arch wall concrete. The method can effectively control surrounding rock deformation in the tunnel construction process of the large deformation section of the soft rock, improves the overall rigidity and stability of a supporting system, ensures that the lining is tightly attached to the surrounding rock, and reduces the construction risk.

The invention belongs to the technical field of mechanical parking, and particularly relates to a rear cantilever type two-wheeled electric garage lifting device which comprises a steel frame structure, a lifting driving assembly, at least one upper-layer vehicle carrying plate, a lower-layer vehicle carrying plate, a drag chain, a fence and a walking track. Wherein the steel frame structure comprises a top cross beam and a pair of channel steel rails which are arranged on the rear side of the equipment in the vertical direction and are mounted face to face, and a closed lifting guide channel is formed; the inner wall face of the channel steel rail is a rolling contact face of the lifting walking wheel, and an opening of the channel steel rail faces forwards, so that the vehicle carrying plate is only restrained and guided by the rear side rail in the lifting process, the front area is completely opened, and a user can conveniently push in or push out the two-wheel electric vehicle. The structure that a single lifting point is matched with four lifting traveling wheels ensures that the vehicle carrying plate is kept in a horizontal posture in the whole lifting process, and the phenomena of inclination, shaking or clamping stagnation are avoided; the steel wire rope tensioning assembly automatically adjusts tension, loosening slipping or too tight breakage is avoided, and long-term reliable operation is guaranteed.

The invention discloses a hoisting module, a hoisting system and a construction method for crossing-intersection cast-in-place beam construction, the hoisting module comprises a reverse hoisting steel frame, a bottom platform, a plurality of reverse jacking devices and a plurality of hoisting rods, and the reverse hoisting steel frame is supported by two segmental beams; a plurality of first lifting holes are distributed in the reverse lifting steel frame; second lifting holes are formed in the positions, corresponding to the first lifting holes, of the bottom platform. The upper end of each hanging rod penetrates through one first hanging hole, the lower end of each hanging rod penetrates through one second hanging hole, and the upper end and the lower end of each hanging rod are in threaded connection with locking nuts respectively. A reverse jacking device is arranged between each segmental beam and the bottom platform; each reverse jacking device comprises a lower jacking block, an adjusting nut, a lifting screw and an upper jacking plate, and the upper jacking plates and the lower jacking blocks apply pressure to the segmental beams and the bottom platform correspondingly. Through a double stress balance structure of reverse hoisting of the reverse hoisting steel frame and reverse jacking of the reverse jacking device, the construction safety is greatly improved.

The application relates to a device and method suitable for precise positioning of steel pull rods of arch feet of steel truss arch bridges, the device comprising a first positioning steel plate and a second positioning steel plate, the length of the steel pull rod in the concrete arch support foundation being L, L being divided into n sections, the first positioning steel plate being arranged at a starting point node, the second positioning steel plate being arranged at intermediate nodes, and a lower bearing plate being arranged at an end point node, a plurality of through holes being arranged on the first positioning steel plate and the second positioning steel plate, the through holes being used for the steel pull rod to pass through, the positions of the first positioning steel plate and the second positioning steel plate being fixed through four coordinates, steel frame structures being arranged between the first positioning steel plate and the second positioning steel plate, adjacent second positioning steel plates, the second positioning steel plates and the lower bearing plate, and the steel frame structures being welded with the first positioning steel plate and the second positioning steel plate. The application can position the steel pull rod, avoid the steel pull rod from being deflected under the dead weight or being deformed under the impact of concrete pouring, and ensure that the long steel pull rod is perpendicular to the upper and lower bearing plates during construction.

The invention discloses a support design method of a strong support steel frame based on layer critical stiffness, and relates to the technical field of building reinforcement. Comprising the steps of calculating the critical support stiffness of a frame column and drawing a nomogram of the critical support stiffness of the frame column, calculating the critical support stiffness of a shear type support steel frame layer of each floor, calculating the critical support cross-sectional area of the shear type support steel frame of each floor under the action of no horizontal load, and calculating the equivalent support area required for resisting the horizontal load. Calculating the critical support area of each floor frame under the action of a vertical load and a horizontal load; calculating the cross section area of a tension critical support single diagonal rod; and selecting the cross section model of a shear type support. The invention discloses a support design method of a strong support steel frame based on layer critical stiffness, provides design steps of a shear type strong support for the steel frame, and in the method, discloses a calculation formula of the structural layer critical support stiffness of the shear type support steel frame and provides a nomogram convenient for engineering application.

The invention relates to the technical field of steel structure construction, and particularly discloses a steel structure welding butt joint device for steel structure construction, which comprises a fixing structure, a first supporting structure and a second supporting structure, the fixing structure is detachably clamped on a bearing column or a cross beam of a steel structure, the first supporting structure is detachably arranged on the fixing structure, and the second supporting structure is detachably arranged on the bearing column or the cross beam of the steel structure. The first supporting structures can be located on the front side and the rear side or the left side and the right side of the fixing structure, the first supporting structures are used for bearing and limiting steel structures in butt joint, the second supporting structures are detachably arranged on the fixing structure, and the second supporting structures can be located on the front side and the rear side of the fixing structure. The two sides of one side of the H-shaped steel frame are clamped and locked through the clamping bases, and stable clamping is achieved; meanwhile, steel frames in various shapes such as a rectangular shape, a square shape and a round shape can be clamped, fixed and subjected to bearing butt joint limiting through the clamping and bearing design, and butt joint devices do not need to be independently arranged for the steel frames in different shapes and specifications.

The utility model discloses a self-stress compensation type ultra-long concrete anti-crack supporting device, and belongs to the technical field of supporting devices, the self-stress compensation type ultra-long concrete anti-crack supporting device comprises a bottom plate, and an H-shaped steel frame is arranged above the bottom plate; the fixing cylinders and the telescopic rods are arranged to form the telescopic supporting legs, the two telescopic supporting legs form a main body supporting system, the main body supporting system is matched with the rigid supporting characteristic of the H-shaped steel frame to effectively disperse the load during concrete pouring, the supporting mechanisms are arranged, and therefore the telescopic rods can synchronously support the two sides of the H-shaped steel frame, and the concrete pouring efficiency is improved. The two telescopic rods are fixedly connected together through the cross beam to form a whole, so that the hydraulic jacking mechanism drives the cross beam to achieve height adjustment of the main body supporting system, accurate control is achieved, stress uniformity is guaranteed, and the stability of the supporting system is improved. And the situation that self-stress distribution in the structure is changed due to uneven stress before the concrete structure is not completely hardened is avoided, the construction quality is ensured, and cracks are prevented.

The invention belongs to the technical field of structural engineering, and relates to a self-resetting lateral force resisting module suitable for a beam through type frame. According to the technical scheme, a rotating support is an obtuse-angle triangular frame composed of an inclined support and a horizontal beam, the obtuse-angle top of the obtuse-angle triangular frame is hinged to the bottom of an upper-layer main beam of a beam-through type frame, and the center of the horizontal beam of the obtuse-angle triangular frame is connected with a thorn ring-disc spring reset system; the acute angle of the obtuse triangle frame is connected with an inner wedge-shaped plate-disc spring reset system and an outer wedge-shaped plate-disc spring reset system; the viscoelastic damping groove is connected to the lower portion of the horizontal beam and located between the thorn ring-disc spring reset system and the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system. The bottoms of the thorn ring-disc spring reset system, the viscoelastic damping groove, the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system are fixedly connected with the upper portion of a lower layer main beam of the beam through type frame. The characteristics of a beam through type steel frame are fully matched, and the weak layer effect of the beam through type steel frame in the application of a high-rise building structure in the background technology is solved.

The application discloses a kind of tunnel steel frame with regulated and controlled bearing joint system and use method, the system includes steel frame bearing joint upper part and steel frame bearing joint lower part, medium sand in the cavity of steel frame bearing joint upper part, multiple spherical stainless steel plates and incompressible medium in the cavity of steel frame bearing joint lower part;Steel frame bearing joint upper part includes with upper part steel frame connection upper fixed plate and is arranged in the first vertical plate of upper fixed plate lower surface and is arranged in the bottom plate of first vertical plate bottom;Steel frame bearing joint lower part includes with lower part steel frame connection lower fixed plate and vertically arranged on second vertical plate of lower fixed plate;Spherical stainless steel plate is used as pressure-bearing unit to make steel frame in preset stable state;Incompressible medium is filled in the cavity of steel frame bearing joint lower part to make steel frame joint system deformation range adjustable;It can solve the problem that existing telescopic steel frame telescopic amount is limited, steel frame limit bearing capacity cannot be controlled, and steel frame cannot be effectively protected.

The invention discloses building steel frame welding equipment and aims to solve the problem of low welding efficiency in existing welding operation. According to the technical scheme, the machine is characterized by comprising a rack; the moving mechanism is arranged on the rack; the clamping mechanism is arranged on the moving platform and used for positioning and clamping the steel frame workpiece in the welding process; the welding mechanism is arranged on the rack and located above the moving mechanism; and the control unit is electrically connected with the first driving assembly, the second driving assembly, the third driving assembly and the clamping mechanism and used for controlling coordinated actions of all the mechanisms. Movement, clamping, welding and other actions are coordinated in a unified mode through the control unit, automation of the whole process from clamping to welding is achieved, and the manual labor intensity and the operation difficulty are remarkably reduced.

The utility model discloses a dam grouting cover plate concrete pouring formwork lifting device, and relates to the technical field of water conservancy projects, in particular to a dam grouting cover plate concrete pouring formwork lifting device which comprises a combined steel formwork, and the upper surface of the combined steel formwork is fixedly connected with a supporting plate. A guardrail A is fixedly connected to one side of the supporting plate, and a steel frame is fixedly connected to the other side of the upper surface of the combined steel formwork. During use, after a grouting cover plate foundation is excavated, a winch is installed on the top of the foundation, a balance weight is made, the combined steel formwork is connected through a steel rope, the winch is used for moving the combined steel formwork to the position where concrete is poured, a formwork balance weight block is installed on the combined steel formwork to be fixed after the balance weight is determined, and the formwork balance weight block is moved out after the concrete is poured. And the combined steel formwork is lifted to the position of the next bin to be fixed through a winch, and after the combined steel formwork is lifted, a specially-assigned person is dispatched to the operation platform for plastering of the previous pouring bin.

The utility model discloses a light steel skeleton structure of a hollow earthenware brick curtain wall. The light steel skeleton structure comprises a group of rear anchor plates, adapters connected to the rear anchor plates, a group of vertical steel keels connected with the adapters, supporting angle steel connected to the steel keels, earthenware bricks arranged on the top face of the supporting angle steel or above the supporting angle steel, and a pull rod assembly connected with the earthenware bricks in a penetrating mode. According to the utility model, through the arrangement of the rear anchor plate, a foundation is provided for earthenware tile installation and bearing; a supporting system is formed through the arrangement of the adapting pieces, the steel keels and the supporting angle steel, and the stability of earthenware brick installation is further guaranteed; through the arrangement of the pull rod assembly, the attractive appearance is not damaged in a manner of penetrating through the earthenware bricks; the pull rod assemblies are arranged in sections, so that the bearing force can be shared to the corresponding angle steel; in addition, the earthenware bricks are arranged at intervals and connected with the pull rod assembly in a penetrating mode, batch construction is facilitated, and working efficiency is improved.

The invention discloses a positioning device and process for electrical cabinet framework profile steel production, and relates to the technical field of electrical cabinet production, the positioning device comprises a base, a working table top is arranged on the upper surface of the base, four limiting side plates are arranged at the center of the working table top, and a limiting middle frame is arranged at the center of the upper surfaces of the four limiting side plates; a clamping mechanism is arranged on the upper surface of the base and comprises a top clamping assembly and a bottom clamping assembly, the top clamping assembly comprises two clamping jaw components, each clamping jaw component comprises two sliding mounting frames, the two sliding mounting frames are both arranged on the upper surface of the base, driving motors are arranged in the sliding mounting frames, and the bottom clamping assembly comprises a lifting block, a lifting block and a clamping block, according to the technical scheme, by arranging the clamping mechanism, accurate positioning of steel frame steel pipes on the upper plane and the lower plane is achieved, and the production efficiency and quality of the electrical cabinet framework profile steel are improved.

The utility model discloses a drilling machine fixing device capable of being used repeatedly, which belongs to the technical field of grouting drilling construction and comprises a drilling machine fixing assembly, the drilling machine fixing assembly comprises a screw and a screw outer pipe sleeved on the lower portion of the peripheral side of the screw, and centripetal extrusion components are arranged at the upper end and the lower end of the screw outer pipe and located on the peripheral side of the screw. The centripetal extrusion assembly extrudes the screw outer pipe through the upper end and the lower end, so that the upper end and the lower end of the screw outer pipe are expanded outwards after extrusion force is applied to the upper end and the lower end of the screw outer pipe, anchoring holes are formed in the periphery of the drilling machine, and the screw carries the screw outer pipe to be inserted into the anchoring holes in the periphery of the drilling machine. The two ends of the screw outer pipe located in the anchoring hole expand outwards and then abut against and are clamped to the inner wall of the anchoring hole, the top end of the screw is connected with a drilling machine stroke steel frame, and the drilling machine stroke steel frame is fixed to the screw. The utility model ensures that the screw outer pipe can be uniformly and firmly clamped in the anchoring hole, provides stable supporting force, prevents the drilling machine from shaking, and is convenient to use repeatedly.

The utility model relates to the technical field of magnetic suspension conveying systems, in particular to sliding contact type power supply magnetic suspension equipment. Comprising a steel frame base, a bottom plate is arranged on the steel frame base, and a sliding contact module and a mover module are arranged on the bottom plate; the sliding contact module comprises a sliding contact line, a power connector is arranged on the sliding contact line, the sliding contact line forms a loop line through a connector and is arranged on a plurality of fixing seats, and the current collector is in sliding connection along the sliding contact line; the current collector and the mover module are rotationally connected through a hinge structure, the mover module slides along the guide rail, the guide rail is annular, and the current collector moves along the sliding contact line along with the mover module; one end, connected with the mover module, of the hinge structure is a z-shaped plate, one end, connected with the current collector, of the hinge structure is a connecting piece, and the connecting piece is hinged to the z-shaped plate through a hinge plate. According to the utility model, the problem of wiring winding in the motion process of a power supply loop line track when the mover moves is solved through a power supply mode of the sliding contact module; and the application of the equipment in different scenes is expanded.

The utility model discloses a steel frame standard weld joint structure which comprises a frame cross beam, a frame longitudinal beam is arranged on the front side of the frame cross beam, angle plates are arranged at the rear ends of the two sides of the frame longitudinal beam, and an inserting weld joint is arranged at the contact position of the frame cross beam and the frame longitudinal beam. Splicing welding seams are arranged at the contact positions of the frame longitudinal beams, the angle plates and the frame transverse beams, and first inserting openings are formed in the rear sides of the frame longitudinal beams. The first inserting openings and the second inserting openings are used in cooperation, the contact area of the frame transverse beams and the frame longitudinal beams is increased, the frame transverse beams and the frame longitudinal beams are welded to form inserting welding seams, and meanwhile under the positioning effect of the positioning assemblies, the angle plates are welded to the included angles of the frame transverse beams and the frame longitudinal beams to form splicing welding seams; therefore, the frame cross beams and the frame longitudinal beams are stably connected, and the purposes of accurate welding position, large welding area and high strength can be achieved.

The present application relates to a kind of large section deep soft rock tunnel combined support system and construction method, the present application is combined with elastic shell theory and equivalent section method, a steel arch frame-grating combined support mode suitable for deep large section soft rock tunnel is proposed, the support rigidity of simply using steel arch frame or grid steel frame is overcome or supported, the disadvantage of lower in long-term large deformation unfavorable surrounding rock stability and deformation control, solve the problem that the stress of existing support structure is larger, the self-bearing capacity of surrounding rock cannot be fully exerted, cause material waste is serious, the safety factor of support structure is low, difficult to guarantee the stability of tunnel, and provide a simple and practical construction method for tunnel excavation and support.

The utility model discloses an experimental device for studying double-fire-source combustion characteristics of a longitudinal ventilation downwards-inclined tunnel. The experimental device can conveniently replace a site, change ventilation conditions and ensure the stability when the gradient of the simulated tunnel is rapidly adjusted. According to the technical scheme, the device comprises a supporting plane steel frame, a detection unit, an image acquisition unit and an air supply device, a longitudinal airflow device and a simulation tunnel are arranged above the supporting plane steel frame, the detection unit is arranged in the simulation tunnel, the image acquisition unit is arranged on one side of the simulation tunnel, and the air supply device is connected with two combustors at the bottom of the simulation tunnel through pipelines; a supporting foot stool and an inclination angle fixing frame are arranged below the supporting plane steel frame, the supporting foot stool is hinged to the middle of the supporting plane steel frame through a first pin shaft, a protractor is arranged at the top of one side of the supporting foot stool, and the top of the inclination angle fixing frame is hinged to the end of the supporting plane steel frame through a second pin shaft. And a hydraulic jack is arranged below the second pin shaft.

The utility model discloses an anti-tilt scaffold which comprises a steel frame and two crossed supporting rods arranged on the two sides of the steel frame, the outer sides of the four corners are respectively provided with a pair of fixing pieces, an inner rod is arranged between the fixing pieces, a plurality of limiting holes are formed in the inner rod, a sleeve rod is arranged on the outer side of the inner rod, and the sleeve rod is connected with the steel frame. An adjusting knob is arranged on the sleeve rod, through holes are formed in the two sides of the lower portion of the sleeve rod respectively, an inserting rod is arranged at the bottom of the sleeve rod, a spring is arranged on the outer side of the inserting rod, a base is arranged at the bottom of the inserting rod, rotating pieces are arranged on the two sides of the base respectively, and a bottom plate is arranged below the rotating pieces. According to the scaffold, the two sides of the steel frame can be supported, the steel frame is prevented from inclining towards the two sides, the safety risk of workers is reduced, and through friction between the inserting rods and the sleeve rods and the buffering effect of the springs, shaking of the scaffold can be reduced, and the scaffold is stabilized.

This application relates to the field of photovoltaic technology and provides a steel frame for a photovoltaic module and a photovoltaic device. The steel frame for the photovoltaic module of this application has a mounting portion, which includes a top wall and a bottom wall, and a side wall connecting the top and bottom walls. A mounting groove for mounting the photovoltaic module is formed between the side wall, the top wall, and the bottom wall. The top wall has an abutment arm bent towards the mounting groove, and the free end of the abutment arm abuts against the bottom of the top wall to form an elastic space Q between the top wall and the abutment arm. The abutment arm abuts against the photovoltaic module. The steel frame for the photovoltaic module described in this application uses the elastic space Q as a deformation compensation space to adapt to the deformation of the photovoltaic module, thereby preventing hard contact and breakage between the photovoltaic module and the steel frame, and thus improving the safety of the photovoltaic module.

This invention discloses a safety mechanism for a steel frame bridge connection device, including a traction cable, a damping assembly, and accessory supports. The traction cable is vertically installed on the bridge body. The damping assembly consists of an elastic sleeve and a rigid sleeve. The elastic sleeve has circumferentially spaced damping cavities filled with a fluid medium on its wall. The rigid sleeve has an annular cavity connected to each damping cavity via a bypass hole. A retractable and controllable plunger is installed within the annular cavity. This invention can dynamically adjust the damping and damping force by pressurizing or depressurizing the fluid through the expansion and contraction of the plunger according to the bridge's vibration state, achieving adaptive matching of damping parameters. This solves the problem that existing passive devices cannot adaptively adjust, effectively coping with large-amplitude, wide-frequency, and high-frequency vibrations, avoiding resonance and damping failure, and significantly improving the damping effect, stability, and protection life of the bridge connection structure.

The utility model belongs to the technical field of greenhouse building structures, and particularly relates to a greenhouse wind-resistant building steel structure which comprises a greenhouse foundation, a main steel frame column is installed at the upper end of the greenhouse foundation through bolts, a main steel frame beam is installed on the back face of the main steel frame column through bolts, and an end wall purline is welded to the front face of the main steel frame column. A wind-resistant stand column is installed at the upper end of the greenhouse foundation through a bolt, and the wind-resistant stand column is connected with an end wall purline in a welded mode or in a bolted mode. According to the scheme, through cooperative use of the wind-resistant stand columns, the horizontal pressure beams, the inclined horizontal pull rods and other structures, the stability of the whole structure is enhanced, the wind-resistant capacity of the multi-span greenhouse end wall is effectively improved, safe use of the greenhouse under the severe weather condition is guaranteed, sunlight shielding is reduced through the small end wall purline section, and the service life of the greenhouse is prolonged. The lighting amount of the greenhouse is increased, more sufficient lighting conditions are provided for growth of crops in the greenhouse, and the yield and quality of the crops are improved.

The utility model provides a mycoprotein production system which is characterized by comprising a building body on which a steel frame platform is built; the slurry mixing tank is fixed on the building body; the plurality of fermentation tanks are fixed on the building body, and a second conveying pipe is arranged between the slurry mixing tank and the fermentation tanks; the belt filter press is connected with the fermentation tank; the slurry mixing tank, the fermentation tank and the belt filter press are provided with odor collecting pipelines, the building body is further provided with a dosing assembly which is connected with the fermentation tank, and the building body is provided with a tap water assembly connected with the slurry mixing tank.

This invention belongs to the field of vibration reduction technology for nuclear power plant fans, specifically relating to a high-damping integrated vibration reduction foundation suitable for nuclear power fan fans. It consists of a steel frame connected to a height-adjustable vibration damper. The steel frame is welded from high-damping composite channel steel, which is composed of conventional channel steel and particulate dampers. The height-adjustable vibration damper uses the housing as the installation reference. An upper annular metal rubber is inserted into its inner cavity, followed by the upper end of the mandrel being inserted into the inner hole of the upper annular metal rubber. Then, a lower annular metal rubber is inserted into the inner cavity of the housing, with its upper end face against the mandrel. A base is then placed on top, and rivets are used to connect the base and housing through four mounting holes. Finally, the internal thread of the mounting block is screwed into the external thread at the upper end of the mandrel. This invention effectively reduces the vibration level of the fan, ensuring safe operation of the fan.

The invention discloses an automatic forming and processing system for surgical tubular instruments, and belongs to the field of precise and intelligent manufacturing of medical instruments, the automatic forming and processing system comprises a bottom plate steel frame, a servo cylinder I, a blanking machine profile frame, a material jacking cylinder and a shifting wheel, a pressing machine bottom plate is arranged right above the bottom plate steel frame, a marble base is arranged right above the pressing machine bottom plate, and the marble base is arranged right above the blanking machine profile frame. A first servo air cylinder is arranged over the pressing machine bottom plate, and a second servo air cylinder is arranged on one side of the first servo air cylinder in parallel. A blanking machine profile frame is arranged on the other side of the bottom plate steel frame, a shifting wheel is arranged in the blanking machine profile frame, and a material ejecting air cylinder is arranged on one side of the shifting wheel. The machining system is provided with an automatic feeding module, a multi-process collaborative machining module and an intelligent discharging module, multi-process combined machining such as flaring, laser cutting, laser grooving and precise punch forming of the precise thin-wall metal pipe can be completed in the same equipment platform, and the problem of secondary clamping errors during material cross-process circulation is avoided from the source.

The invention discloses a telescopic discharging platform and a using method thereof, and relates to the field of building construction.The telescopic discharging platform comprises a mounting frame unit, a movable frame, a supporting rod unit, an H-shaped steel frame and a supporting unit, the modular H-shaped steel frame and reinforced angle steel cross beam combined design is adopted, dynamic supporting compensation is achieved in cooperation with a damper and a telescopic air cylinder, and dynamic load impact is effectively absorbed; and structural deformation is avoided. The platform adopts a folding movable frame, a plug-in type supporting unit and standardized bolts for connection, field assembly is convenient and fast, various monitoring devices such as a platform pressure sensor, a horizontal sensor and a supporting pressure sensor are integrated, data such as load, inclination angle and supporting state are collected in real time, dynamic safety evaluation is achieved, the system automatically judges the load state, and the safety of the system is guaranteed. Graded early warning is triggered, a locking air cylinder is controlled in a linkage mode, a power source is cut off, and active safety protection is achieved.

The invention discloses an invisible light curtain hollowed-out light-transmitting metal wall surface mounting structure and a mounting method thereof.The invisible light curtain hollowed-out light-transmitting metal wall surface mounting structure comprises a plurality of box type invisible light curtain hollowed-out metal modules, a plurality of vertical rectangular steel frames are mounted on the surface of a wall body, and a plurality of rebound type bearing supports are mounted on each vertical rectangular steel frame; transverse rail square steel is installed on the rebound type bearing support, a slidable inserting and hanging base plate is installed on the back of each box type hidden lamp curtain hollowed-out metal module, and the slidable inserting and hanging base plates are in sliding connection with the two pieces of transverse rail square steel which are adjacent up and down. The vertical rectangular steel frame, the rebounding type bearing supports and the transverse rail square steel are assembled to form an overall base layer frame, the bearing supports are elastically adjusted to designated positions through the multiple sets of equidistant rebounding type bearing supports and internal spring structures of the rebounding type bearing supports and then anchored, so that the transverse rail square steel is rapidly clamped, inserted and installed in a limited mode, the space between cavities is adjustable, and the service life of the transverse rail square steel is prolonged. The base layer is high in surface flatness and stable in structure, and electromechanical pipelines are convenient to arrange.

The utility model provides a kind of noise reduction fire prevention fence of photovoltaic energy storage equipment, including multiple improved type enclosing mechanism;Improved type enclosing mechanism includes multiple side-by-side distribution support frame, and sound-absorbing board piece is assembled between adjacent support frame;Support frame includes first I type vertical steel frame and I type angle steel frame arranged at the top of first I type vertical, and the included angle of first I type vertical steel frame and I type angle steel frame is 120-135 °;Sound-absorbing board piece includes square frame body and sound-absorbing material filled in the inside of square frame body, and square frame body includes the inner side panel close to photovoltaic energy storage equipment, and multiple honeycomb holes are opened in the inner side panel through penetration.It is designed that the included angle of first I type vertical steel frame and I type angle steel frame of improved type enclosing mechanism is 120 °-135 °, and cooperate sound-absorbing board piece;Make sound wave multiple scattering after impact, reduce the noise peak of single direction strong reflection in sensitive area (such as residential area).

The application provides a centripetal infiltration model device and relates to the technical field of vacuum preloading model tests, and comprises a steel frame mechanism, the inside of the steel frame mechanism is provided with a rigid-flexible combined lining, the top end of the steel frame mechanism is provided with a load loading system, and the bottom end of the steel frame mechanism is provided with a sand collecting pool; the inside of the rigid-flexible combined lining is sequentially provided with a vacuum control system, an air pressure test system and a water pressure test system from top to bottom, and the outside of the steel frame mechanism is provided with a soil pressure and soil sample deformation monitoring system. The rigid-flexible combined lining can be used for eliminating the side wall friction force, can be used for researching the vacuum preloading evolution mechanism and testing new vacuum preloading materials and technologies, and through the centripetal infiltration model device, the vacuum degree attenuation mechanism in the vacuum preloading process can be simulated and researched, and new technologies for improving the clogging condition of the drainage plate can be tested.