286 results about "Bolted joint" patented technology

The invention discloses a composite material four-nail connection structure strength prediction and bolt layout optimization method based on a physical information neural network, and belongs to the technical field of composite material design. The method comprises the following steps: carrying out simulation modeling and verification on the composite material four-nail connection structure; generating and expanding a basic data set; constructing and training a physical information neural network model; performing system calibration and verification on the prediction precision and generalization ability of the physical information neural network model by using experimental data; and constructing a composite material four-nail connection structure bolt layout automatic optimization framework, and outputting optimal bolt layout parameters. According to the method, the problem of physical unreasonable prediction of a pure data driving model in a data sparse region is solved, efficient collaborative optimization under geometric constraints of bolt spacing, edge distance and the like is realized, a complete closed loop from rapid strength evaluation to automatic layout optimization is realized, and the design efficiency and reliability of a composite material four-nail connection structure are improved.

The present application relates to a kind of pyrolysis high-temperature solid material conveying device of leakage prevention, belong to high-temperature solid material conveying technical field;Shell is placed axially horizontally on support platform;The top of shell is provided with import flange, bottom is provided with export flange;Double-chamber leakage prevention seal is installed in the axial left end of shell;Shaft passes through double-chamber leakage prevention seal and then from the left end of shell extends into the inner cavity of shell;2 bearing seats are fixed on the upper surface of support platform by bolt connection;The axial outer end of shaft is supported by 2 bearing seats;Rotary joint is installed in the outer end of shaft;Access hole is arranged in the top of shell;Access hole inner wall, import flange inner wall, export flange inner wall, shell inner wall are attached wear-resistant castable;The outer wall of the part of shaft extending into the inner cavity of shell is installed blade;Transmission part is sleeved on the outer wall of the outer end of shaft;The present application can withstand high-temperature working condition when conveying garbage pyrolysis solid material, while long-distance material return in horizontal direction is realized, and the problem of garbage pyrolysis material return is solved.

The utility model relates to a tower crane holding tile connecting structure, and belongs to the technical field of tower cranes. Comprising a standard knot lower joint, a standard knot upper joint, a holding tile I and a holding tile II, a hinge I is arranged on the standard knot lower joint, a hinge II is arranged on the holding tile I, a hinge III is arranged on the holding tile II, and the hinge II and the hinge III are connected with the hinge I through connecting rods. The holding tile I and the holding tile II are fixedly connected with the standard knot lower connector and the standard knot upper connector through bolts. The standard knot lower joint and the standard knot upper joint are provided with grooves matched with the holding tile I and the holding tile II, and the holding tile I and the holding tile II can be clamped into the standard knot lower joint and the standard knot upper joint through the grooves. The utility model has the beneficial effects that the traditional tower body standard knot mounting method is eliminated, the holding tile is initially mounted to the outer side of the lower joint, frequent mounting and dismounting are not needed, and the mounting efficiency is improved. And the hinge design is adopted, so that the holding tiles can be rotationally opened and closed, the flexibility is higher, and the application range is wider.

The utility model discloses an inner mold for pouring well lid base concrete of an inspection well. The inner mold comprises a cylindrical mold plate and a demolding turn buckle. The inner diameter of the cylindrical formwork is matched with the inner diameter of a shaft of the inspection well, and the height of the cylindrical formwork is larger than that of a well lid base. The cylindrical template is formed by assembling three arc-shaped steel plates with the same height and the same radian; one end of the first arc-shaped steel plate is connected with one end of the second arc-shaped steel plate through two hinge mechanisms, and the other end of the first arc-shaped steel plate and the other end of the second arc-shaped steel plate are connected with the two ends of the third arc-shaped steel plate in a one-to-one correspondence mode through plug pin mechanisms. And the demolding turn buckle is connected between the height middle part of the first arc-shaped steel plate and the height middle part of the second arc-shaped steel plate, is positioned on the inner diameter line of the cylindrical template, and is vertical to the connecting line of the butt joint ends of the first arc-shaped steel plate and the second arc-shaped steel plate and the axis of the cylindrical template. The utility model is convenient to disassemble and assemble, and can be recycled.

The utility model discloses a kind of precision sheet metal parts with accurate positioning structure belongs to precision sheet metal part assembling technical field, solve the problem of inconvenient disassembly maintenance of existing metal door plate, including box body component, box body component is bolted with support plate, rotatingly installed with metal door plate on support plate, metal baffle is bolted in box body component, the adjusting mechanism of being installed with being convenient for disassembly on metal door plate, by installing adjusting mechanism, rotating one side's drive rod, flat gear on the both ends of drive rod contact adjusting screw rod, two adjusting screw rods drive two rotating blocks mutually away along first disassembly groove inner wall, rotating block enters support plate and upper metal plate inside, facilitate metal door plate opening and closing, reverse rotating drive rod, control two rotating blocks mutually close, into second disassembly groove, facilitate to remove rotating block and replace, rotating the drive rod of other side, facilitate the rotating position of left and right sides of metal door plate is adjusted.

The invention discloses plasma arc welding equipment for frame straight seam welding, and relates to the technical field of plasma arc straight seam welding equipment.The plasma arc welding equipment comprises a rack installed on the upper surface of a machine base through bolts, and the side face, located below the rack, of the machine base is connected with a working rack for bearing a frame through bolts. According to the plasma arc welding equipment for frame straight seam welding, the end portions of the two frame workpieces are precisely bulldozed and aligned through the aligning mechanism, the initial assembly error is eliminated, rigid clamping is formed on the two sides of the frame workpieces through the clamping mechanism, the welding faces of the frame workpieces are forced to be tightly attached, and the welding efficiency is improved. The aligning mechanism, the clamping mechanism and the original pressing assembly form three-dimensional multi-point constraint on the frame workpiece, workpiece upwarp, transverse shrinkage and distortion caused by welding thermal stress are effectively resisted, finally, the clamping mechanism is in linkage with the top disc to operate, adsorption of the frame workpiece and the working table top is broken, quick and lossless workpiece taking is facilitated, and the welding quality is improved. And deformation of the frame workpiece is avoided.

The utility model discloses an assembly type steel structure pool self-tightening type side column node structure which comprises wallboard units, a steel column and a rubber sealing gasket, each wallboard unit comprises a wallboard surface and a wallboard side column, the steel column is correspondingly arranged between the two wallboard units, the cross section of the steel column is a trapezoid section with one large end and one small end, and the rubber sealing gasket is arranged between the wallboard surface and the wallboard side column. The small end of the wallboard side column is arranged on the upstream side close to the pool, the side, close to the steel column, of the wallboard side column is an inclined face matched with the side face of the steel column, a rubber sealing gasket is arranged between the wallboard side column and the steel column, and the wallboard side column, the rubber sealing gasket and the steel column are fixedly connected through high-strength bolts and achieve abutted seam sealing. And the wallboard units and the steel columns are compacted and reinforced under the action of water pressure in the water pool. The wall plate side column node is simple in structure and ingenious in design, the steel column and the wall plate side column section are optimally designed, the reinforcing and sealing effects can be achieved by means of water pressure in a water pool, and the problem of hidden danger of water seepage of the side column node is effectively solved.

The application discloses an arc curved surface fair-faced concrete ribbed wood formwork and a manufacturing method, and the formwork comprises a film-coated plate, a wood batten rib plate and a concrete wall body. The film-coated plate comprises an inner side formwork and an outer side formwork, and is used for limiting concrete flow and guaranteeing the forming of the concrete wall body. The concrete wall body is in a circular ring structure and is located between the inner side formwork and the outer side formwork. The inner side formwork and the outer side formwork are connected through a tension bolt, and a plurality of wood batten rib plates are arranged on the side, away from the concrete wall body, of the inner side formwork and the outer side formwork, so as to guarantee that the film-coated plate panel bears force uniformly. The application avoids the problem that ordinary wood formworks are prone to deformation during processing and installation, guarantees the forming effect of curved surface fair-faced concrete, and saves construction cost compared with steel formworks and glass steel formworks.

The utility model provides an electric rotary combined type soil sampler. The electric rotary combined type soil sampler comprises a handheld electric drill, an adapter substitute, an upper end cover plug, a plurality of pipe joints and a drill bit, an adapter is mounted at the top end of the upper end cover plug, and the handheld electric drill drives the upper end cover plug to rotate through the adapter; the top of the first pipe section in the multiple pipe sections is connected with the upper end cover plug through a thread structure, and the bottom of the tail pipe section in the multiple pipe sections is connected with the drill bit through a thread structure. At least one of the multiple pipe joints is connected through an inserting structure and a lateral puller bolt; the inserting structure comprises an inserting head arranged at the end of one pipe section and an inserting opening formed in the matched end of the adjacent pipe section, an annular groove is formed in the periphery of the inserting head, a screw opening corresponding to the annular groove is formed in the side portion of the inserting opening, and a lateral puller bolt is in threaded fit with the screw opening and is clamped into the annular groove in a jacking mode, so that the two adjacent pipe sections can rotate in the circumferential direction after being connected. The structure of the soil sampler is suitable for electric transformation, and the threaded connection position is not prone to being locked.

Therefore, this application provides a bolt fastening system. The bolt fastening system may include a bolt, a nut, and a bolt fastening tool. The bolt fastening tool may include an adapter and a chamber. One of the adapter and the chamber applies torque to the bolt, and the other holds the nut.

The utility model relates to a multi -station high -efficient separation frock of CPU heat -dissipation glue relates to motor equipment maintenance technical field, and the left side of the connection frame is fixedly arranged on the left side outer wall of feed frame, and the left side of connection frame is provided with the slot, the screw rod is provided with through bearing swivel joint in the slot, and the upper end of screw rod is connected with drive wobble plate after passing through the connection frame, the moving block is arranged in the slot, and the front side of moving block is slidably arranged with the front side inner wall of slot, and moving block is sleeved on screw rod through thread rotation, the support is two, and opposite fixedly arranged on the upper and lower sides of moving block, and the support is arranged on the back of screw rod, the bolt is inserted and arranged in the support through thread rotation, the connecting block is fixedly arranged on the right side of tool, and the connecting block is inserted in the slot, the bolt is inserted and arranged in the connecting block through thread rotation, and the tool is driven to move through thread drive, reaches the purpose of adjusting tool, is not only simple operation, and the adjustment precision is high, improves the separation efficiency.

The utility model relates to the technical field of operation platforms, in particular to a four-limb latticed column detachable turnover shaping protection operation platform which comprises a steel column, and a reserved part is installed on the surface of the steel column. The side face of the supporting frame is connected with the reserved part through a bolt; the base plates are arranged on the top surface of the supporting frame, and the base plates are connected through a connecting plate; the checkered steel plate is arranged on the top surface of the base plate, and a square tube guardrail is mounted on the top surface of the checkered steel plate; a connecting column is fixedly installed between the steel columns, and a safety crawling ladder is arranged on the outer side of the connecting column. According to the utility model, a safe high-altitude operation platform can be provided for operators, and meanwhile, the operation platform can be detachably mounted and is convenient to turn over.

This invention belongs to the field of reactor structural mechanics technology, specifically relating to a method for analyzing and evaluating high-temperature bolted connection sealing structures. The invention includes the following steps: selecting the location of the reactor pressure vessel flange and main bolt connection as the object of sealing structure analysis; analyzing and summarizing the influence of gasket data on the deformation and contact surface pressure of various components of the flange bolted connection structure; researching current standards and analyzing their limitations; using the finite element software ANSYS to perform finite element modeling of the reactor pressure vessel flange and main bolt structure; applying loads and constraints to the finite element model of the reactor pressure vessel flange and main bolt structure; calculating the deformation and stress of the structure using different creep and relaxation models; analyzing the relaxation behavior of the high-temperature flange bolted connection structure using experimental methods; and comparing and analyzing the results of the finite element method, the standard method, and the experimental method. This invention enables the analysis and evaluation of the sealing performance of flange bolted connection structures under high-temperature environments.

The utility model provides a continuous flow micro-reactor for a heparinase catalytic reaction, belongs to the technical field of micro-reactors, and aims to solve the problems that the replacement of immobilized heparinase needs a long time and the efficiency of the heparinase catalytic reaction is influenced. Comprising a limiting supporting base, a positioning mounting frame, a reactor main body, a positioning connecting rod, a first storage tank and a second storage tank, the positioning mounting frame is in bolted connection with the right side of the limiting supporting base; the reactor main body is fixedly connected to the left side of the positioning mounting frame; the positioning connecting rod is rotationally connected to the left side of the reactor main body, and a damper is arranged at the joint of the positioning connecting rod and the reactor main body; the first storage tank is fixedly connected to the middle part of the positioning connecting rod; the second storage tank is in bolted connection with the front side of the first storage tank; according to the utility model, the replacement efficiency of the immobilized heparinase is improved, a large amount of time is saved, and the catalytic reaction efficiency of the heparinase is improved.

The utility model relates to the technical field of drilling construction, in particular to a gas drilling construction orifice protection device which comprises a protection device body and a base, the front end of a first shell in the protection device body is connected with an outer-layer gasket through a bolt, and the inner side of the outer-layer gasket is connected with an inner-layer gasket through a bolt. A first base plate is welded to the inner side of the rear end of a first shell in the protection device, a first mud blocking pad is placed in the hollow position in the first base plate, a threaded rod is rotationally connected to the threaded hollow position of the inner side of the first base plate in the protection device, and the outer side of a threaded structure in the protection device is in threaded connection with a threaded groove in the base. According to the utility model, the inner part of the first shell can be in a sealed state by inserting the outer-layer gasket and the inner-layer gasket into a wall, so that gas cannot be leaked when discharged, and the first shell can be connected with the second shell by connecting the thread structure with the thread groove; air pressure in the first shell and the second shell can be measured through the first pressure measuring meter and the second pressure measuring meter.

The utility model discloses an adjustable anti-sedimentation well lid for road maintenance, which relates to the technical field of well lids for road maintenance and comprises a base, a positioning block is arranged on the inner side of the base, a frame is arranged above the base, a positioning groove matched with the positioning block is arranged inside the frame, and threaded holes communicated with each other are arranged inside the frame and at the top of the base. Multiple sets of pressing plates are arranged above the threaded holes in the top of the base at one end, adjusting mechanisms are arranged above the pressing plates, the base at the other end and the frame are connected to the threaded holes through short bolts, multiple sets of mounting holes are formed in the positions, located on the side faces of the short bolts, of the top of the frame, damping mechanisms are arranged in the mounting holes, and protective well lids capable of being opened and closed are arranged at the tops of the mounting holes. The utility model is favorable for guaranteeing the driving safety, reducing the road surface damage, reducing the road maintenance cost and improving the working efficiency.

The utility model discloses an oil pipe joint hot bend pipe processing device which comprises a displacement adjusting assembly and a heating mechanism, a positioning clamping mechanism is arranged on the inner side of the displacement adjusting assembly, a pipe fitting body is arranged at the output end of the positioning clamping mechanism, the heating mechanism is arranged above one end of the displacement adjusting assembly, and the other end of the displacement adjusting assembly is connected with the positioning clamping mechanism. The heating mechanism comprises a lifting frame, a top base, a transformer, a mechanical arm base, a first arm, a second arm, an electric hinge seat and a heating ring, the top base is connected to the upper portion of one end of the displacement adjusting assembly through a lifting frame bolt, and the transformer is arranged above the top base; according to the hot bent pipe machining device for the oil pipe joint, a positioning clamping mechanism is matched with an upper displacement adjusting assembly, and a pipeline can be heated and bent for multiple times according to needs under the operation of a lower lead screw set, a gear ring, an angle lead screw, a bolt strip and an arc-shaped clamping block; therefore, the automatic machining efficiency of the equipment can be effectively improved in the process.

The application discloses a device foundation bolt lengthening method and a tightening device in the technical field of device installation, the tightening device comprises a handle and a mounting ring mounted on the end of the handle, the tightening device further comprises a sleeve ring rotatably mounted in the mounting ring, a plurality of groups of slotted holes are formed in the outer side wall of the sleeve ring, an insertion block for being inserted into the slotted holes is slidably arranged on the mounting ring, a pressing block is slidably arranged on the handle, and a connecting rope is arranged between the pressing block and the insertion block, in the application, a screw rod with a nut is processed, internal threads are processed on the screw rod, the screw rod with the nut is directly connected with a pre-buried bolt, the length of the pre-buried bolt is increased, normal installation and fixation of the device are ensured, the difficulty of construction is reduced, the construction period is shortened, the work efficiency is improved, the construction progress of the project is ensured, and the engineering cost is reduced.

The invention discloses a double-pipe drilling tool synchronous loading and unloading device and a loading and unloading method. The device comprises a manipulator, a rotary positioning mechanism, a clamp combination body and a power head, the manipulator is arranged on the side of the drilling mast and connected with the frame; the manipulator is composed of a gripper and a movable arm, the gripper is composed of a movable clamping block and a fixed clamping block, and a sleeve clamping block and a drill rod clamping block are arranged in the gripper and connected through bolts; the movable arm is connected with the fixed arm through the rotary oil cylinder; the rotary positioning mechanism consists of a thrust plate, a manipulator platform and a rotary speed reducer; the manipulator platform comprises a manipulator platform mounting plate and a mounting base fixed on the frame; the rotary speed reducer is fixed on the manipulator platform; a movable ring of the rotary speed reducer is in bolted connection with the manipulator fixed arm base; the clamp combination body comprises a lower clamp, a middle clamp and an upper clamp; the power head is limited through the power head drilling mast rail groove and slides up and down along the drilling mast; the pipe joint is of a structure suitable for a double-pipe drilling tool. By means of the device, personnel do not need to make direct contact with the drilling tool, and the accident rate is reduced.

The invention belongs to the technical field of anti-seismic connection of inorganic glue composite bamboo structures, and relates to an inorganic glue composite bamboo-profile steel combination column-beam connection joint with graded energy consumption and self-resetting functions and an assembly method thereof. Comprising an inorganic glue composite bamboo-section steel combination column, an inorganic glue composite bamboo splicing beam, an energy dissipation steel hoop connecting piece and a beam-column joint connecting steel member. The inorganic glue composite bamboo-section steel combination column is provided with hollow round-corner cross-shaped steel, and the middle of the cross-shaped steel is provided with an extending connecting energy-dissipation steel filling plate which is used for being reliably connected with a joint connecting steel component and an energy-dissipation steel hoop connecting piece. The beam ends of the inorganic glue composite bamboo splicing beams and the energy dissipation steel hoop connecting pieces are connected through bolts to form an integral beam assembly. The energy dissipation steel hoop connecting piece comprises a four-side wrapping steel cap and energy dissipation angle steel, under the action of an earthquake, the energy dissipation angle steel firstly generates yield deformation to form a first-stage energy dissipation mechanism, then the node steel component further generates plastic deformation to form a second-stage energy dissipation mechanism, and therefore a double-energy-dissipation structure system is formed, and earthquake energy is effectively dissipated.

The utility model relates to the technical field of construction structures, in particular to a steel structure beam column connecting joint. The steel structure beam column connecting joint comprises two connecting units. Each connecting unit comprises two connecting assemblies which are opposite in the first direction, each connecting assembly comprises a mounting part and an inserting part, the mounting part extends in the vertical direction, and the cross section of the mounting part is integrally in a C shape; in each connecting unit, the two mounting parts are connected through a fastening bolt, a mounting cavity used for containing the stand column is formed between the two mounting parts, and the side wall of the mounting cavity abuts against the outer surface of the stand column; an inserting part is arranged on the outer side of each mounting part, an inserting cavity is formed in each inserting part, the cross section of each inserting cavity is in a T shape, and an opening structure is arranged on the side, close to the other connecting unit, of the inserting cavity of one connecting unit in the vertical direction; the end of the second beam is slidably connected with the side wall of the insertion cavity in the first direction, and the mounting part is connected with the second beam through an assembly bolt.

The invention discloses a detachable length-adjustable intelligent detection supporting rod piece, and belongs to the technical field of intelligent monitoring supporting rod pieces. The detachable length-adjustable intelligent detection supporting rod piece comprises a fixing mechanism, a hydraulic transmission mechanism and an angle adjusting mechanism; the fixing mechanism is detachably installed at the end of the H-shaped steel, the hydraulic transmission mechanism is connected to the other end of the fixing mechanism, and the angle adjusting mechanism is movably connected to the end of the hydraulic transmission mechanism. The problems that a traditional steel support needs to be additionally provided with a jack, the length of the steel support cannot be adjusted, the turnover rate is low, and secondary seam filling is needed at the joint of the steel support and a crown beam are solved, the H-shaped steel fixing plate and the hydraulic fixing plate are connected through high-strength bolts, and the steel support is convenient to disassemble and has good rigidity and stability; and the device can be matched with H-shaped steel of different sizes and can be suitable for foundation pits of different sizes, and the repeated utilization rate is greatly increased.

The invention discloses an adjustable dynamic and static ring for a coal mill, and relates to the technical field of coal mills.The upper portion of a millstone is provided with an annular milling channel, one side of the bottom of the millstone is connected with a dynamic ring mechanism through a bolt, the radial outer wall of the dynamic ring mechanism is in lap joint with a bearing mechanism, and the upper portion of the bearing mechanism is provided with a first static ring mechanism; a second static ring mechanism is arranged on the upper portion of the first static ring mechanism, the movable ring mechanism is located below the second static ring mechanism, gaps are reserved among the movable ring mechanism, the bearing mechanism, the first static ring mechanism and the second static ring mechanism, and an L-shaped channel is formed. According to the adjustable dynamic and static ring for the coal mill, an air duct and a nozzle are redesigned, the air duct nozzle is subjected to Venturi design, the air speed is gradually increased from an inlet to an outlet of the nozzle and reaches the maximum at the throat part of the nozzle, the ventilation resistance can be reduced, a sealing structure is redesigned, a dynamic and static gap can be ensured, primary air leakage is reduced, and primary air is efficiently utilized; pulverized coal can be carried more effectively, and the output of the coal mill is ensured.

The invention provides a fabricated steel-concrete composite structure bridge. The fabricated steel-concrete composite structure bridge comprises a plurality of standard prefabricated modules; each standard prefabricated module comprises concrete, two H-shaped steel beams, outer side steel plates, high-strength bolts, shear nails and hook steel bars. The H-shaped steel beam is connected with the outer side steel plate through the high-strength bolts, the concrete is poured on the outer side steel plate, and the shear nails are welded to the side, facing the concrete, of the outer side steel plate. The end, connected with the adjacent standard prefabricated modules, of the outer side steel plate is provided with a connecting part, the hook steel bar is arranged in the concrete, and the end, connected with the adjacent standard prefabricated modules, of the hook steel bar is provided with a lap joint part. Each standard prefabricated module further comprises a connecting steel plate used for connecting the outer side steel plates of the adjacent standard prefabricated modules through high-strength bolts and the connecting steel plates to form pouring cavities during field connection. By adopting standard prefabricated modularization and high-strength bolt connection, the integrity and reliability of the combined structure are improved, the site construction time is shortened, and disassembly and repeated utilization are facilitated.

The utility model discloses a slab type ballastless track base plate formwork, including two side steel mould, the side steel mould is by base plate side mould top surface steel sheet, base plate side mould bottom surface steel sheet, base plate side mould panel and base plate side mould formwork rib plate welding composition, and the square steel of being connected between two side steel moulds, and the base plate expansion joint plug -in board of being set between two side steel moulds and being at square steel rear, the utility model discloses adopts the bolt assembly of block type steel formwork, and each base plate is by two steel moulds, and expansion joint position is disconnected with square steel and is connected two side formworks and square steel through bolt, and the expansion joint foam board is clamped between two base plate formworks with the collocation plug -in board, and this design effectively avoids the disturbance of concrete pouring and personnel trample to expansion joint, ensures that expansion joint is vertical, and linear is straight, greatly improves expansion joint construction quality, lays the foundation for track plate accurate laying, guarantees the high -quality completion of high -speed railway slab type ballastless track base plate construction.

The utility model discloses a roof panel combined structure which comprises a roof panel supporting unit, the top surface of the roof panel supporting unit is connected with a vertical plate through a pin hole and a fixing bolt, and a mortise is formed in the surface of one side of the vertical plate. According to the utility model, the vertical plate is fixed on the top surface of the top plate supporting unit, and the transverse plate is clamped in the mortise through the tenon, so that the transverse plate can be quickly mounted to a specified position, and the second clamping groove, the first clamping block, the third clamping groove and the second clamping groove are convenient to mount, so that the first plate and the second plate in the front and back can be tightly connected; the two sets of plates are fixed through the fixing bolts and clamped, the two sets of plates can be better spliced, and therefore the connecting tightness of the plates is further enhanced, as a whole, due to the arrangement of the structure, the plates have the high connecting tightness, and the sound insulation effect of the device is improved through the arranged sound insulation sponge; and the practicability of the device is improved.

The porcelain insulator comprises an insulator umbrella skirt, the upper end of the insulator umbrella skirt is connected with a mounting ring, the outer side of the mounting ring is rotatably connected with an adjusting frame, the end part of the adjusting frame is provided with a lower supporting ring, and the outer side of the lower supporting ring is in bolted connection with an upper fixing ring; the upper fixing ring is in threaded connection with a threaded rod, and a pressing plate is installed at the end of the threaded rod. The lower side of the insulator umbrella skirt is connected with a steel foot, and the outer side of the steel foot is in threaded connection with a nut. According to the porcelain insulator provided with the wire tightening assembly, the positions of the lower supporting ring and the upper fixing ring can be adjusted by driving the adjusting frame to rotate, so that the lower supporting ring and the upper fixing ring flexibly face the upper end position or the side edge position of the umbrella skirt of the porcelain insulator, and a wire is tightened by adjusting the position of the pressing plate; the design can adapt to the distribution position of the wire to lock the wire, and the use flexibility is improved.

The application relates to the field of steel structure processing, in particular to a roof purlin processing and punching device, which comprises a base (1), a stand column (2), a sleeve pipe (3), a support (4), a jib (5), a spring (6), a top rod (7), a bolt (8), a connecting rod (9), a positioning cylinder (10), the stand column (2) is welded with the base (1) in combination; the sleeve pipe (3) is sleeved into the stand column (2); two supports (4) are respectively welded at the side walls of the sleeve pipe (3) at one end; the top rod (7) is connected with the two supports (4) through the bolt (8); the jib (5) is welded with the stand column (2) at one end; the spring (6) is fixed at one end with the end of the top rod (7) and at the other end with the end of the jib (5); the connecting rod (9) is welded with the side wall of the sleeve pipe (3) at one end and with the side wall of the positioning cylinder (10) at the other end. The application has the effects of solving the problem of roof purlin processing and moving, reducing construction cost and reducing safety hazards.

The invention relates to the technical field of steel structure connection, in particular to a high-strength steel structure joint connecting device and a using method thereof.The high-strength steel structure joint connecting device comprises a high-strength steel structure stair and further comprises a positioning assembly, a pressure bearing seat is arranged in the middle of the bottom of the high-strength steel structure stair, and the positioning assembly comprises a first positioning inserting groove; the first positioning slots are welded to the four corners of the top of the pressure bearing seat, I-shaped steel is inserted into the middles of the first positioning slots, positioning ribs are welded to the middles of the outer sides of the I-shaped steel, first bolt connecting pairs are arranged on the outer sides of the first positioning slots, and the first positioning slots and the I-shaped steel are connected through the first bolt connecting pairs. The reinforcing ribs are arranged on the key transverse profile steel and the stress profile steel, so that the compression resistance and bending resistance are directly improved, it is ensured that the joint area has enough strength reserve, all joints are finally fixed through high-strength bolt connecting pairs, the integrity of the joint and the reliability of force transmission are ensured, and the structure is stable and durable.

The utility model discloses a recoverable device for ultrahigh adjustment and temporary fixation of a pc track beam. The device is mainly composed of a jack (3), an H-shaped steel support (4), a square steel corbel (5), a limiting screw rod (6), channel steel (7), a steel base plate (8), a nut (9), an embedded steel pin cap (10), a base steel plate (11), a rotating plate (12), a pin (13), a bolt (14) and an embedded steel plate (15). The temporary fixing device is characterized in that channel steel (7) and a square steel corbel (5) are welded to form a corbel, a base steel plate (11) and an H-shaped steel support (4) form a supporting device, two rotating plates (12) and a pin (13) form a rotating hinge, the corbel is connected with the supporting device through the rotating hinge, a bolt (14) and a nut (9), meanwhile, the supporting device is connected with a pre-embedded steel plate (15) pre-embedded in a cover beam through the bolt (14), and then the temporary fixing device can be formed. The pc track beam (1) and the embedded steel pin cap (10) are slowly hoisted, the embedded steel pin cap (10) falls into the channel steel (7) on the corbel, and the pc track beam (1) is fastened on the temporary fixing device through the limiting screw (6) and the nut (9). The jack (3) is arranged below the square steel corbel (5), and the superelevation adjustment can be completed through the adjustment of the jack (3). The temporary fixing device has the advantages that the superelevation of the pc track beam (1) can be accurately adjusted, the construction precision is improved, the construction safety is high, the temporary fixing device can be repeatedly used, and the cost is saved.