699results about How to "Easy to connect and fix" patented technology

The invention discloses a full-fabricated assembly overall reinforced concrete house which comprises a plurality of column ribs arranged at intervals and respectively and fixedly connected with a foundation, a plurality of column bodies prefabricated in a modularized way, a plurality of wall bodies prefabricated in the modularized way, and a floor slab prefabricated in the modularized way. The invention aims to overcome the defects of the prior art, and improve the full-fabricated assembly overall reinforced concrete house which has simple structure, is convenient to install, saves building materials, is quick to build, and has good overall safety performance. Another purpose of the invention is to provide a method for building the house.

The embodiment of the invention provides a mixed dielectric waveguide filter. The mixed dielectric waveguide filter comprises a first three-mode resonator (1), a second three-mode resonator (3) and a single-mode resonator (2), wherein the face, making contact with the single-mode resonator (2), of the first three-mode resonator (1), and he face, making contact with the single-mode resonator (2), of the second three-mode resonator (3) are respectively provided with coupling windows (18 and 38), and dielectric of all the resonators is exposed, and used for coupling between the first three-mode resonator (1) and the single-mode resonator (2) as well as between the second three-mode resonator (3) and the single-mode resonator (2). According to the mixed dielectric waveguide filter, interference between the three-mode resonators can be reduced, and the topological structure is flexible, simple and easy to assemble.

The invention relates to a power battery module of an electric vehicle and an electric vehicle. The power battery module comprises cells, an upper cover, a middle end plate, two oppositely arranged end plates, and two oppositely arranged lateral plates. Two end plates are respectively welded to two lateral plates to form a shell without any bottom surface or a top surface. The middle end plate iswelded to two lateral plates so as to divide the interior of the shell into at least two installation cavities. Multiple cells are installed in each installation cavity. The upper cover is arranged onthe upper end of the shell. The overall installation structure is formed by connecting the middle end plate, the end plates, and the lateral plates, the number of stored cells is increased, the number of stored cells is equal to the number of cells of two or more individual modules, compared with two or more individual modules, the size is reduced in the length direction, the module length is increased, the occupied space is small, the uniformity of the module is increased, the inner space is saved, the whole structure of the module is more compact, the space utilization rate is increased, and thus the energy density and capacity of the whole battery system are both increased.

The invention belongs to the field of building construction, and particularly relates to a pile foundation fixing device used for a construction site. For solving the problem that an existing pile foundation fixing device cannot reinforce and protect a pile foundation which has been built, the following scheme is put forward; the pile foundation fixing device comprises multiple stacked clamping sets; each clamping set comprises two clamping devices symmetrically arranged; each clamping device comprises a clamping block and two fixing blocks; the corresponding fixing blocks are arranged on the two sides of each clamping block correspondingly; each clamping block and the corresponding fixing blocks are of an integrated structure; two first through holes are formed in every two corresponding fixing blocks correspondingly; a threaded rod is arranged in the first through holes in every two corresponding fixing blocks; nuts are connected with the two ends of each threaded rod in a threaded manner; a gasket and a first spring are arranged between each nut and the corresponding fixing block; and each gasket is located between the corresponding first spring and the corresponding nut. The pile foundation fixing device is simple in structure, low in cost, convenient to install and capable of stabilizing the construction pile foundation so that influences caused to the construction pile foundation when other construction operation is conducted can be prevented.

A vapor chamber and heat pipe combined structure includes a vapor chamber, a first capillary tissue, a heat pipe, and a working fluid. The vapor chamber includes an upper metal casing, a lower metal casing, a containing chamber between the upper and lower metal casings, a riser at the lower metal casing, and a through hole communicated with the containing chamber. The first capillary tissue is installed in the containing chamber and has a receiving hole corresponsive to the through hole. The heat pipe includes a pipe body and a second capillary tissue installed in the pipe body and extended out of the pipe body to form an exposed section. The heat pipe is connected to the through hole and the receiving hole, so that the exposed section is attached to the receiving hole of the first capillary tissue. The working fluid is filled into the containing chamber.

A vapor chamber and heat pipe combined structure and method; the vapor chamber and heat pipe combined structure includes a heat pipe, a vapor chamber and a working fluid. The heat pipe includes a pipe body, a fixing section, and a first capillary tissue. The vapor chamber includes an upper metal casing, a lower metal casing, a containing chamber and a second capillary tissue installed in the containing chamber. The working fluid is filled into the containing chamber, and the fixing section of the heat pipe is coupled to the upper metal casing, so that the first capillary tissue is coupled to the second capillary tissue. The combined structure facilitates the connection and fixation of the heat pipe and improves the reflux speed of the liquid-state working fluid.

The invention discloses a catalyst for ethyne hydrochlorination for synthesis of chloroethylene and a preparation method thereof. The catalyst of the invention is prepared by impregnation of an active carbon carrier, metallic compound active components and a hydroxyl-containing water-soluble carboxylic acid competitive adsorbent. The active components contain at least one component selected from chloride, nitrate, sulfate or phosphate of cobalt, copper, manganese, zinc, bismuth, barium and potassium. The competitive adsorbent contains citric acid, malic acid, salicylic acid, oxalic acid, tartaric acid and lactic acid. The prepared catalyst has characteristics of high activity, good selectivity, simple production method and low cost. By adding the hydroxyl-containing water-soluble carboxylic acid competitive adsorbent, the active components are greatly fixed to the carrier, and high temperature transfer of the active components is reduced; by roasting decomposition of the competitive adsorbent, rich pore structures are generated, and gas dispersion in the reaction process is improved; and dispersity of the active components is improved, catalyst poisoning is alleviated, and life of the catalyst is prolonged.

The invention relates to a hollow filled plastic-steel building template and a composite structure. The inner lateral surfaces of the building template are provided with longitudinal slots enclosed by double flanges respectively; hard supporting plates are inserted and fixed between every two opposite longitudinal slots; the centers of the two opposite lateral surfaces or three or four lateral surfaces of the building template are provided with grooves parallel to corresponding relatively-longer side edges respectively; and a lightweight filling material is filled into the cavity of the template. The composite structure consists of the template, corner connecting pieces and middle prisms, wherein the side edges of the corner connecting pieces are provided with longitudinal ribs which are matched with corresponding grooves on each side edge of the template; the middle prisms are matched with the grooves on each side edge of the building template; and simultaneously, each prism has a width which is twice that of the groove. The hollow filled plastic-steel building template integrates the advantages and characteristics of a steel formwork, a timber formwork and a hollow plastic formwork, has the advantages of strong strength, long service life, smoothness, easy de-molding, no bend, no deformation, lightweight and flexible mounting and dismounting, can improve the working efficiency and is applied to popularization and implementation.

The invention relates to a foamed ceramic compound wallboard which comprises an outer panel and an inner main board. The outer panel is a foamed ceramic plate, and the outer side of the outer panel is provided with an outer veneer. The inner main board is a foamed ceramic board or an autoclaved aerated concrete board or a calcium silicate board or a cement fiber board or a gypsum plasterboard, and the inner side of the inner main board is provided with an inner veneer. The outer panel and the inner main board are connected and fixed through a support assembly, and through the support assembly, a cavity is formed between the outer panel and the inner main board. The interior of the cavity is coated with rigid foam polyurethane. According to the technical scheme, the integrated wallboard meets the requirements of a building external wall for the required strength and impact resistance, has the characteristics of water prevention, seepage prevention, heat preservation, good weather resistance and low comprehensive cost, and is combined with a decorative layer.

The invention discloses a tailing pond model test simulation system. The tailing pond model test simulation system comprises a water supply system, a terrain simulation system, a measuring system and a water and sand recovery system. The water supply system is communicated with the upstream of the terrain simulation system through a water conveying pipeline. The downstream of the terrain simulation system is communicated with the water and sand recovery system through a mortar channel. The water and sand recovery system is provided with a sand filter device and a water return port. The measuring system is used for measuring parameters of dam-break debris flow in the terrain simulation system. The terrain simulation system comprises a terrain simulation support. A rib mesh layer, a felt layer and a waterproof layer are installed at the top end of the terrain simulation support in sequence from bottom to top. The terrain simulation support comprises a plurality of adjustable supporting bases. The lower portions of every two adjacent adjustable supporting bases are connected through a cross beam. The rib mesh is installed at the top ends of the adjustable supporting bases. The tailing pond model test simulation system solves the problems that the terrain manufacturing process is complex and water and sand are difficult to recover during tests, the model test efficiency is improved, and the test system can be recycled.

The invention relates to a method and a system for heating and melting snow and ice on the road surface under the current surface effect. The system comprises an alternating-current power supply, an input cable, a three-phase transformer, a three-phase balancer, an electrical switch, a temperature control device, a snow and ice melting sensor, a power supply terminal box, highly-ferromagnetic iron pipes, a transitional connecting tube, a high temperature wire, an electrical switch (3), a U-shaped bent-pipe wire penetrating part, an end terminal box, a grounding protector and a cathode protector. A U-shaped surface action heating element which is formed by connecting a plurality U-shaped highly-ferromagnetic iron pipes is energized under the surface effect and the proximity effect to efficiently emit heat to rapidly melt the snow and the ice on the road surface. The U-shaped highly-ferromagnetic iron pipes are buried in the teinforced concrete or asphalt road surface. The U-shaped surface action heating element has high mechanical strength and quite long service life, can be used permanently, is not easy to be subjected to the wire disconnection, is very easy to repair when being damaged, needs only one power supply point, can not affect the three-phase power supply balance, can be heated uniformly, adjusted randomly in temperature and constructed and installed conveniently with least labor, has high degree of automation, does not need electric insulation, is safe, reliable and economical and can not pollute the environment.

The invention provides a body and panel connecting device and an air purifier with the same. The body and panel connecting device comprises hooks, hook seats, first fasteners, first fastener seats and elastic structures; the hooks are arranged on a panel, and the hook seats are matched with the hooks and are arranged on a body; the first fasteners are arranged on the panel, and the first fastener seats are matched with the first fasteners and are arranged on the body; the elastic structures are arranged on the inner side of the panel. The body and panel connecting device and the air purifier have the advantages that the body and panel connecting device is simple in structure and convenient to use, and an operator only needs to easily push extending portions of the first fastener seats via the elastic structures, so that the panel can be conveniently and quickly detached.

The invention relates to fabricated wall temporary connecting and fixing equipment. The fabricated wall temporary connecting and fixing equipment comprises a base plate, a flat plate, supporting devices, clamping devices and pushing devices. The flat plate is mounted on the base plate. The supporting devices are symmetrically mounted at the left and right ends of the base plate. The clamping devices are mounted on the corresponding supporting devices. The pushing devices are mounted on the flat plate. Through the fabricated wall temporary connecting and fixing equipment, the following problemsexisting during fabrication of an existing fabricated wall can be solved. The problems are shown as follows: when most of fabricated walls are assembled in place and joint construction is not completed, the fabricated walls can be placed stably and the occurrence possibility of accidents is greatly improved; and when traditional reinforcing devices are adopted, threaded holes need to be formed inthe walls, steel plates are mounted to the threaded holes of the walls through threaded rods, the upper ends of supporting rods are welded to the steel plates, the lower ends of the supporting rods are embedded on the ground, a lot of time and labor are wasted, and structural damage is caused to the fabricated walls. The fabricated wall temporary connecting and fixing equipment has the advantagesof being good in pushing and reinforcing effect, high in working efficiency and the like.

The invention discloses an installation method and structure of an indoor wood veneer of decoration engineering. The installation method needs a U-shaped connector, a screw and a back bolt, and includes the following steps that: 1, an installation hole is formed on the back surface of the wood veneer, a bolt head of the back bolt is inserted into the installation hole, one side of the U-shaped connector is sleeved on a back bolt rod of the back bolt, a fastening nut of the back bolt is sleeved on the back bolt rod, the fastening nut is rotated to move forwards so as to push a back bolt expansion body of the back bolt to expand and release, accordingly the back bolt is meshed with the wood veneer, and the side of the U-shaped connector sleeved on the back bolt rod is fixed on the back bolt; 2, one or more than one installation hole is formed on a wall body, the screw penetrates through the hole on the other side of the U-shaped connector, and the other side of the U-shaped connector is fixed on the wall surface. The installation method and structure are simple to construct, high in installation efficiency and simple in structure.

The invention provides a hard rail numerical control lathe. The hard rail numerical control lathe comprises a base module. The base module comprises a motor base, a spindle motor, a Z-axis motor, a Z-axis motor base, a base body, a Z-axis lead screw, a bearing block and a motor belt wheel. The spindle motor is fixed to the side edge of the base body through the motor base. The motor belt wheel is fixed to the spindle motor. The Z-axis motor base is fixed to the base body. One end of the Z-axis lead screw is connected with the Z-axis motor base, and the other end of the Z-axis lead screw is connected with the bearing block. The problems that when a traditional machine tool is used for machining a larger workpiece, the cutting strength of a spindle is insufficient, feed horsepower of all shafts is weak, the strength of a base is not high enough, and machining feed is excessively large, and consequently tool abrading, jamming, servo alarming and even burning-out of a spindle bearing are caused are solved, and the phenomenon of instable transmission caused by the fact that a certain part of a pipeline is not lubricated in place due to the long use cycle and the phenomenon of burning-out of a rail due to the fact that the rail makes contact with overheat are avoided.

The invention discloses a novel soft mechanical hand capable of realizing vertical plane grabbing, and aims to provide the novel soft mechanical hand capable of realizing vertical plane grabbing and improving the grabbing stability, a soft body actuator which can adapt to the use requirements of irregular articles and a soft mechanical hand composed of the soft body actuator. The soft mechanical hand comprises a clamp and at least two soft body actuators symmetrically installed on the clamp, the soft actuator comprises a restraint layer and a base body positioned on one side of the restraint layer, wherein the base body comprises a pneumatic bending module and a grabbing module, one end of the pneumatic bending module is fixedly connected with the clamp, the tail end of the grabbing moduleis a free end, the grabbing module is of an air mesh type structure, and the grabbing module is driven by the pneumatic bending module to enable the grabbing module to realize the grabbing action ofthe vertical plane. The soft mechanical hand provided can be used for grabbing objects in a vertical plane, the contact area between the grabbing module and the grabbing object is large, the grabbingstability is high, and the mechanical hand can adapt to the shape of an object and is beneficial to grabbing of irregular objects.

The invention relates to a structurally heat-preserving integrated pressure-bearing template and a building construction method applying the same. The template comprises a first binding layer, a heat-preserving layer and a second binding layer which are sequentially arranged, wherein the first binding layer is internally provided with a first steel wire mesh which is fixedly connected with a joint bar, the joint bar is inserted into the heat-preserving layer, the first binding layer is provided with a plurality of holes, each hole is corresponding to a connecting point formed on the first steel wire mesh by the previous steel wire and a transverse steel wire which are crossed, and the connecting point is exposed outside through the corresponding hole. The first and second binding layers are made from glass beads, rubber powder polyphenyl granules or a mixed material of glass beads and rubber powder polyphenyl granules. The construction method mainly comprises the following step that the connecting point exposed outside through the hole is relatively and fixedly connected with a base body by means of the template. The template provided by the invention is not easy to crack, stronger in bearing capacity, good in heat-preserving performance and easy to fix. The method provided by the invention can be used for realizing the limiting and connecting purpose at the same time, and the template supporting operating efficiency of cast-in-place concrete is high.

The invention relates to an anti-torsion connection device of a steel wire rope, comprising steel wire rope fixing devices on both ends and a torsion release device in the middle; each steel wire rope fixing device comprises a threaded sleeve, a trapezoidal groove, a U-shaped clip, a pressure block and a locking nut; and the torsion release device comprises an end cover, a gasket, a shell body, arotating shaft and a bearing. The anti-torsion connection device is adopted for connecting steel wire ropes, so that unsafe hidden hazards caused by the steel wire ropes when passing through a head sheave and the like due to overturn, simultaneously the quick connection and fixation of an old rope and a new rope are realized through a clamping function between the trapezoidal groove and the U-shaped clip in the threaded sleeve, the new rope is prevented from more serious wear caused by torsion due to the torsion of the old rope through the free rotation of the bearing in the torsion release device, and the service life and the safety of the steel wire ropes are improved.

The invention relates to a zero adjustment device for rotary encoders and an application method thereof. The device comprises an encoder acquisition card, a computer, an electronic hand wheel, a stepping motor driver, a stepping motor, a cylindrical worm, a helical gear and a universal magnetic gauge stand assembly, wherein the encoder acquisition card is used for connecting the signal output end of a rotary encoder of an automatic control mechanism, the computer is connected with the encoder acquisition card, the stepping motor driver is connected with output signals of the electronic hand wheel, and the stepping motor is connected with the stepper motor driver. In the process of operating, through rotating the electronic hand wheel, the stepping motor rotates and drives the helical gear to rotate through driving the cylindrical worm so as to drive a hollow rotating shaft, and meanwhile, the computer reads the output of the rotary encoder through the encoder acquisition card and displays whether the rotary encoder reaches a zero position; and when the rotary encoder reaches the zero position, a user stops rotating the electronic hand wheel, and the stepping motor stops rotating.

The invention discloses a color steel tile roof connecting piece of a solar photovoltaic panel. The color steel tile roof connecting piece of a solar photovoltaic panel includes a pedestal which is fixedly connected with a color steel tile roof, and a support which is arranged above the pedestal and is fixedly connected with the solar photovoltaic panel, wherein the pedestal includes a body, and two clamp plates which are arranged on the body for clamping the edges on the color steel tile roof from two sides; at least two accommodation grooves which are arranged at intervals in the horizontaldirection are formed in the bottom of the body; and each clamp plate includes a clamping part and a connection part which can be connected to the inside of the accommodation grooves so as to enable the clamp plate to vertically rotate upward opposite to the body. By setting the pedestal to contain the body and the two clamp plates which can rotate relative to the body, and as the distance betweenthe clamp plates can be adjusted, the clamp plates are suitable for almost all the current color steel tiles, and the universality of the connecting piece is improved and the cost is reduced.

The invention discloses a height-adjustable corner transport rack comprises a corner transport mechanism and a lifting mechanism; the corner transport mechanism is arranged at the top part of the lifting mechanism; the lifting mechanism consists of a lifting scaffold A and a lifting scaffold B; the lifting scaffold A and the lifting scaffold B are structural bodies absolutely identical in structure; a regulating mechanism is arranged between the lifting scaffold A and the lifting scaffold B through a connecting rod and a bearing table; the regulating mechanism consists of a screw, a power output shaft and a drive bearing, wherein the screw is perpendicular to ground, and the power output shaft and the drive bearing are arranged on the bearing table; the corner transport mechanism consists of a fan-shaped frame and drive rollers arranged in the fan-shaped frame; the drive rollers are all conical rollers, and are connected by a drive chain. The height-adjustable corner transport rack disclosed by the invention has the advantages of being adjustable in height, convenient to adjust and move and broad in application range.

The invention provides a beam column connection piece, a building framework structure and a mounting method. The beam column connection piece comprises a beam column connection piece body, a stand column splicing head, and a beam splicing head, which are integrally formed; the beam splicing head comprises a first supporting part for directly supporting a lower flange of a beam, and a first fixing part which is arranged above the first supporting part, is horizontally and convexly arranged on the lateral face of the beam column connection piece body, and is fixedly connected with a web of the beam; a distance between the first supporting part and the first supporting part in a vertical direction is more than the thickness of the lower flange of the beam; the width of the first fixing part in the vertical direction is less than a distance between the two opposite faces of the two flanges of the beam; and the beam column connection piece is further provided with a stopping part of the end part of a stand column. The beam column connection piece has the advantages in that the end part of an H-shaped or transverse H-shaped beam has no need of being machined and has more connection and fixation positions; the connection nodes are stable and reliable; the strength and the rigidity of the connection position are good; and the building framework structure has the advantages of convenience in installation, less process and low labor intensity.

The invention relates to an assembling device for decorative rings and shells of lamps of automobiles. The assembling device is characterized in that a rotary supporting mechanism comprises a first support, a second support, a corner cylinder, a driving shaft seat, a driven shaft seat and a supporting seat, the first support and the second support are respectively mounted on a bottom plate, the corner cylinder is mounted on the first support, a rotary shaft of the corner cylinder is fixedly connected with the driving shaft seat, a rotary shaft section on the driven shaft seat is mounted on the second support via bearings, the supporting seat is connected onto the driving shaft seat and the driven shaft seat, and a shell positioning form board with a shell positioning cavity is mounted on the supporting seat; a pressing mechanism comprises at least three clamping cylinders which are respectively mounted on two sides of the supporting seat, two ends of each pressing arm are respectively connected with the corresponding clamping cylinder and a corresponding pressure head, and flexible protective cushions are arranged on the lower portions of the pressure heads. The assembling device has the advantages that scratching to surface coatings of the decorative rings is reduced, and the assembling quality and the manufacturing efficiency can be improved.

The present invention discloses a remotely controllable air purification device, which comprises an air purification shell and a top end connecting block, wherein the top end connecting block is installed and fixed on the upper end position of the air purification shell; when a filter screen plate collector consisting of a metal connecting outer frame, a first filter screen plate, a second filterscreen plate, a third filter screen plate, a fourth filter screen plate, a fifth filter screen plate, a cleaning rolling brush, a bottom ash storage box and folding shielding cloth is used for cleaning, a moving plate, located outside the metal connecting outer frame, of the cleaning rolling brush moves up and down to perform cleaning. When moving, the folding shielding cloth is driven to fold, thus preventing dust from overflowing. A metal bottom panel formed by a metal outer plate, a fixing insertion groove, a metal inner plate and a middle ventilation hole is more convenient to install, andthe metal outer plate and the metal inner plate are adhered and inserted and fixed on the top end connecting block through the fixing insertion groove, which makes the fixing firmer.

The invention discloses an intelligent integrated power supply and a control system thereof. The power supply comprises a base, and a power supply cabinet is mounted at one side of the top end of thebase. Supporting assemblies are uniformly mounted in the power supply cabinet. The power supply is scientific and reasonable in structure, is safe and convenient to use, and is provided with the supporting assemblies. The effects of a supporting plate, a rotating shaft and a mounting hole facilitates the supporting installation and disassembly of the power supply, and facilitates the parallel hiding of the supporting plate and the inner wall of the power supply cabinet; the effects of the connecting plate, an inserting strip, a convex block and an inserting groove facilitates the connecting and fixing of the two supporting plates, and improves the stability of the power supply; the power supply is provided with a wire bunching assembly, an electric wire is clamped into a wire bunching ringunder the action of a transverse rod, a wire bunching ring and an elastic oblique strip, thereby facilitating the constraining and fixing of a connecting wire at the top end of a battery, achieving the arrangement of the electric wire, and preventing the winding of the electric wire from affecting the normal work of the device; the operation is easy, and use is safer.

The invention relates to a bridge lowering and dismantling device based on movable supporting. The bridge lowering and dismantling device comprises a hoisting lifting mechanism, two groups of splicingtype supporting frames and two groups of connecting and supporting cross beams. The hoisting lifting mechanism is mounted on the connecting and supporting cross beams. The two groups of splicing typesupporting frames are symmetrically arranged under the two ends of the supporting cross beams and are detachably and fixedly connected with the two ends of the supporting cross beams. The bridge lowering and dismantling device further comprises a movable conveying mechanism which is used for moving and bearing the splicing type supporting frame and the dismantled beam body. The invention furtherprovides a bridge lowering and dismantling construction method based on the dismantling device. According to the invention, less road construction time is occupied; traffic influence is small; bridgedemolition and transportation of dismantling parts can be safely and quickly completed; and the device is wide in applicability and less in dust pollution in use.

The invention discloses a modified polyurethane material, an exterior-wall decorative energy-saving plate and a preparation method thereof, aims at solving technical problems that the existing decorative thermal-insulation plate is heavy, water-funk, inflammable, easy to crack, easy to drop and complex in construction. The modified polyurethane comprises the following components: polyester polyol, a foaming agent, a foam stabilizer, tin dibutyl, melamine, a flame retardant, glass beads, isocyanate and a catalyst; the exterior-wall decorative energy-saving plate made of the polyurethane comprises a base layer, a decorative layer and a thermal-insulation flame-retardant layer packaged between the base layer and the decorative layer; and the production method of the exterior-wall decorative energy-saving plate comprises seven steps. The exterior-wall decorative energy-saving plate produced by the preparation method in the invention has the advantages of being good in decorative effect, thermal-insulation, fireproof, waterproof, high in strength, un-cracked, long in service life, simple to construct, and the like.

The invention discloses a linear flame welding machine. The linear flame welding machine comprises a feeding mechanism, a welding mechanism and a discharging mechanism; the feeding mechanism comprisesa feeding table, a storing table and a pushing device; the welding mechanism comprises a welding room supporting frame and welding assemblies; each welding assembly comprises a welding head set, a longitudinal adjusting assembly and a transverse adjusting assembly; and the discharging mechanism comprises a discharging table, a material conveying device and a material table. A welding method comprises the following steps of (1) feeding of welded workpieces; (2) adjustment of the height of the welding assemblies; (3) adjustment of the position of the welding head sets; (4) welding; and (5) discharging of the welded workpieces. The linear flame welding machine is ingenious and reasonable in structural design, and convenient and rapid to use and operate, achieves automatic treatment operationof workpiece feeding and discharging through the feeding mechanism and the discharging mechanism, relieves labor intensity, improves operation safety performance, can conduct welding on the workpieces at the same time through design of the multiple welding assemblies, effectively increases the welding rate, and improves the work efficiency.

The invention provides a combined framework pillar for a 500kV transformer substation and a mounting method of the combined framework pillar. The combined framework pillar comprises a framework main connector and framework legs, the same ends of two opposite supporting parts are fixedly connected to form the herringbone framework main connector, a cross supporting part is fixedly connected between the two supporting parts, the framework legs are fixedly connected with the two supporting parts respectively, a framework transition connector is arranged between two opposite framework legs, an end connecting plate is fixedly connected at the top of the framework main connector, and a mounting through hole is formed in the end connecting plate. The mounting method mainly includes the steps: pouring and wrapping by the aid of concrete on the mounting portions of the framework legs of the tail ends of the combined framework pillar to form concrete protection boots. In an integrated framework for the 500kV transformer substation, the assembly efficiency of the integrated framework is improved, resistant-lateral rigidity, wind load resistant and anti-shake requirements of the integrated framework can be met, and safe and reliable running of the 500kV transformer substation is ensured.