552results about How to "Reduce installation difficulty" patented technology

The utility model relates to the technical field of mechanical engineering, and discloses an anti-stretching auxiliary device for replacing pipeline components, which comprises two rigid supports, upper screw rods are slidably mounted on two sides of the interiors of the two rigid supports, and two ends of each upper screw rod penetrate through the interiors of the two rigid supports. A part penetrates through the upper hoop and the lower hoop on the two sides, the lower hoop is attached to the part, the nut is rotated to achieve reverse self-locking, the fixing mode is quite reliable, the part can be prevented from loosening, the upper hoop and the lower hoop surround and clamp a pipeline, the expansion amount caused by thermal expansion and cold contraction can be effectively reduced, the stability of a pipeline system is guaranteed, and the pipeline is prevented from being damaged. And finally, the whole replacement process is convenient, efficient, time-saving and labor-saving, the working efficiency can be improved, the labor cost can be reduced, the labor intensity can be reduced, the quality and speed of pipeline maintenance work can be improved, and the service life of the pipeline can be prolonged.

The utility model relates to the technical field of bus ducts, and discloses a bus duct with a heat dissipation structure, which comprises a bus duct body, a top plate positioned at the top of the bus duct body and connecting modules positioned on two sides of the bus duct body, and one side, far away from the connecting modules, of the bus duct body is provided with a flow guide assembly in sliding connection with a chute. A through hole is formed in the side, close to the flow guide assembly, of the bus duct body, and a heat dissipation assembly is arranged on the side, away from the bus duct body, of the through hole. According to the bus duct with the heat dissipation structure, the sealing rubber strips are rapidly installed in the grooves, then the heat conduction plates and the through holes are arranged in an inserted connection mode, expansion buckles and positioning holes are matched to serve as matching components, rapid installation of the heat conduction plates and the bus duct body can be achieved, and then locking blocks and the expansion buckles serve as the matching components, so that the heat dissipation structure is formed. The heat conduction plate and the bus duct body can be quickly fixed, and the heat conduction plate and the bus duct body can be quickly disassembled when the heat dissipation assembly is cleaned in the later period.

This utility model provides an easy-to-install toilet seat mounting component, relating to the technical field of toilet parts. It includes a screw, a locking seat, a locking element, a nut, and a stop block. The locking seat has screw holes at both its top and bottom. A screw is threaded through the surface of the screw hole near the top of the locking seat. The nut is located inside the locking seat, and a mounting groove is provided on one side of the locking seat. The nut is vertically positioned inside the locking seat and horizontally within the mounting groove. The nut is threadedly connected to the screw. A stop block is provided on the other side of the locking seat. The nut can be easily adjusted in direction within the locking seat and connected to the screw via the nut mounting groove, eliminating the need for complex operations and professional tools. The locking element is installed through an open groove and a retaining shaft, simplifying the installation process, reducing difficulty, and improving efficiency. Furthermore, the retaining shaft and nut retainer on the inner wall of the locking seat restrict the movement of the retaining shaft and nut, ensuring the stability of the installed component. The locking element cooperates with the stop block and rotates around the retaining shaft, ensuring a tight and reliable fixation of the toilet seat.

The utility model is specifically related to a kind of glasses with the mounting structure of pair of buckle type decorative sheet, including leg and solid decorative drawing, still including inner hollow cylinder and outer hollow cylinder, solid decorative drawing is fixed in inner hollow cylinder, installation slot is penetrated in the inside and outside of leg, first limiting structure and second limiting structure are sequentially equipped in installation slot from the outside of leg to the inside of leg, the outer periphery of inner hollow cylinder and the outer periphery of outer hollow cylinder are respectively provided with first abutment structure,second abutment structure, outer hollow cylinder is respectively connected with installation slot, inner hollow cylinder fixed connection. The installation form of solid decorative drawing is compared to the form that lug is embedded in the side of solid decorative drawing ring, and it is high in degree of aesthetic feeling, low in installation difficulty, and high in yield rate;Solid decorative drawing can be seen in the inside and outside of leg, and it is convenient to observe.

The utility model relates to the technical field of expansion riveting nuts, and discloses an anti-skidding expansion riveting nut with an anti-skidding structure, which comprises an assembly main body, an anti-skidding gasket is assembled on the outer side of the assembly main body, the assembly main body comprises an expandable sleeve, and the bottom end of the expandable sleeve is fixedly connected with an internal thread bushing. The anti-skid gasket comprises a set of arc-shaped assembly rings connected to the upper end of the outer side of the expandable sleeve in a sliding and sleeving mode, and a plurality of notch grooves are formed in the annular outer side wall of the expandable sleeve at equal angles. According to the utility model, the optimized anti-skid structure design is adopted, the anti-skid gasket is arranged at the upper end of the expandable sleeve, and the anti-skid coating, namely the polytetrafluoroethylene coating, is arranged on the outer side of the anti-skid gasket, so that not only can the friction force be increased, but also a certain anti-corrosion effect can be achieved; and the top end of the anti-skid gasket is fixedly connected with a plurality of anti-skid convex blocks at equal angles, so that the friction force between the nut and a connected piece is improved, and the anti-skid effect of the whole anti-skid expansion riveting nut is enhanced.

The utility model provides a kind of automobile safety handle assembling device, including workbench, torsional spring installation component, damper shaft set component and torsional spring shaft set component, and the positioning seat for positioning panel is fixed on workbench;Torsional spring installation component is used to install torsional spring to torsional spring articulating seat, it includes the guide bushing slidable towards torsional spring articulating seat and the push rod slidingly installed in guide bushing, and the torsional spring extrusion slot of torsional spring is set in the side of guide bushing;When push rod pushes out torsional spring, the inner wall of torsional spring extrusion slot pushes and pushes the two supporting legs of torsional spring, to make torsional spring occur torsional deformation;Damper shaft set component is installed in the side of positioning seat, for installing damper shaft;Torsional spring shaft set component is installed in the other side of positioning seat, for installing torsional spring shaft;A kind of automobile safety handle assembling device provided by the utility model, overcome the defect that existing automobile safety handle torsional spring and pivot are inconvenient to install.

The utility model discloses a kind of vacuum packaging structures of microwave transmission device, for forming the microwave energy transmission environment of vacuum, including packaging shell and the cover plate of setting packaging shell, the cable hole for power line bundle to enter is opened in packaging shell, sealing mechanism is set at cable hole and is blocked;The sealing ring is set between the contact surface of cover plate and packaging shell, lock catch plate is set in the outer periphery of cover plate, lock catch plate and cover plate edge rotation cooperation, the buckle block of being coupled of lock catch plate is set to packaging shell outer wall, the buckle block is slidably connected with packaging shell along the direction perpendicular to the board surface of cover plate, the utility model will buckle block sliding arrangement, and buckle block is moved by sliding drive mechanism, can be closed, first lock catch plate and buckle block are connected, then locking is carried out by sliding drive mechanism, so as to can reduce installation difficulty, and the compression tightness of sealing ring is flexibly controlled and adjusted.

This utility model provides a compact transformer that is easy to install, including an upper module assembly and a lower module assembly. Four upper module assemblies that are detachably connected end to end form an upper module assembly, and four lower module assemblies that are detachably connected end to end form an enclosing lower frame. The upper frame is correspondingly positioned above the lower frame to form the transformer shell. This utility model, through its modular and reasonable design, makes the installation and disassembly of the shell more convenient and has good practicality.

The utility model discloses a through netlike inhaul cable large-span arch bridge design and construction device which comprises a bridge floor, arch ribs and air cylinders, the arch ribs are arranged on the bridge floor in a bilateral symmetry mode, straining beams are correspondingly arranged on the left side and the right side of the bridge floor, a plurality of inhaul cables are arranged between the straining beams and the arch ribs, the inhaul cables are crossed to form a netlike structure, and the air cylinders are detachably arranged on the tops of the straining beams. The driving end of the air cylinder is connected with the bottom of the inhaul cable which is telescopic through the air cylinder. A plurality of air cylinders are installed at the top end of the straining beam, the air cylinders are connected with the tail ends of the inhaul cables to stretch out and draw back the inhaul cables, the inhaul cables stretch out and draw back to adjust pulling force between the arch rib and the straining beam, a better stable structure is achieved, and installation is convenient and fast. The fixed seat of the cylinder is detachably combined, so that the maintenance, assembly and disassembly are convenient, and daily maintenance is convenient; end cross beams are arranged at the front end and the rear end of the bridge floor, cross-shaped cross beams and longitudinal beams are arranged in the middle, and orthogonal special-shaped plates are poured, so that the bridge floor is stable and does not need to be supported by bridge piers; the device is novel in structure, high in practicability and suitable for popularization.

The utility model discloses a fan with an anti-falling steel wire rope, and relates to the technical field of fans. The fan comprises a fan motor, a hanging rod and an anti-falling steel wire rope, a mounting hole is formed in the bottom of the fan motor, a connecting rod is fixed to the top of the fan motor, and the end of the connecting rod is fixedly connected with the hanging rod. The hanging rod is provided with a first containing channel, the connecting rod is provided with a second containing channel, and the anti-falling steel wire rope is arranged in the first containing channel and the second containing channel. A steel sleeve is fixed to the end of the anti-falling steel wire rope and connected with a safety rope flange in a clamped mode, and the safety rope flange is matched with the mounting hole in a clamped mode. The anti-falling steel wire rope is arranged in the fan, a safety protection structure is formed, the problem that a fan motor falls to hurt people is avoided, the use safety is improved, and potential safety hazards are effectively reduced.

The utility model provides equipment cavity temperature measurement system and with the equipment cavity of heating function. Equipment cavity temperature measurement system is used for carrying out temperature measurement to n heating plate in equipment cavity, it includes n thermocouple, first support, n thermoelectric signal transmission wire and thermoelectric signal output module, n thermoelectric signal transmission wire with n thermocouple is connected respectively through n male female matching connecting joint, n male female matching connecting joint and n thermoelectric signal transmission wire are along first support setting, thermoelectric signal output module with n thermoelectric signal transmission wire is connected and transmits n thermoelectric signal to equipment cavity outside, equipment cavity temperature measurement system still includes the n thermocouple pressure block of setting respectively on n heating plate, through the adjustment of each thermocouple pressure block to make the thermocouple and corresponding heating plate contact. The utility model can realize the thermoelectric signal stable collection, transmission of thermocouple, reduce temperature measurement error, installation difficulty and manufacturing cost.

The utility model discloses vehicle technical field especially relates to a sound insulation board for vehicle, front engine compartment, car body structure and vehicle. Sound insulation board for vehicle includes baffle and connecting piece, and the circumferential outer edge of baffle is used for connecting with the inner wall of triangular window cavity of the front engine compartment of vehicle. Connecting piece is connected with baffle and sets up in the front engine compartment. The front engine compartment, car body structure and vehicle include above-mentioned sound insulation board for vehicle, and baffle sets up in triangular window cavity to cut off the transmission path of noise in triangular window cavity, improves sound insulation and noise reduction effect. Baffle is installed in triangular window cavity through connecting piece, and the installation difficulty of sound insulation board for vehicle is reduced, and installation efficiency and installation stability are improved, and simultaneously avoid sound insulation board for vehicle or its installation accessories to expose on the outside of front end cover plate.

The utility model discloses a simple and small motor speed measuring device, including mechanical structure and electrical control system, and mechanical structure is used for installation fixed and drive, and electrical control system is used for rotational speed measurement, adjustment and control, mechanical structure includes encoder, shaft coupling, electrical mechanism, and the encoder axle is connected with motor through shaft coupling, electrical control system contains controller, AC governor, DC governor, power, and the controller gathers the rotational speed signal of encoder, and the motor rotational speed is adjusted to AC governor or DC governor with analog signal control, the utility model discloses through to the optimization innovation of overall design and structure inside, adopts advanced design thought to simplify control mode, reduces artificial intervention, reduces the labor intensity, and the economic effect is adjusted high.

This invention discloses a method for preparing a novel ultra-high voltage high-performance composite insulating material, belonging to the field of composite insulating material preparation technology. The technical solution includes the following steps: S1, preparing a modified epoxy-silicone rubber composite resin matrix: 40-50 parts by weight of bisphenol A type epoxy resin (E-51) are placed in a reaction vessel, heated to 60-70℃, and continuously stirred at a stirring rate of 300-500 r / min. 10-15 parts by weight of terminal hydroxyl polysiloxane (molecular weight 5000-10000) are added, and the temperature is kept constant for 1.5-2 hours; subsequently, the system temperature is lowered to 40-50℃. The beneficial effects of this invention are: by setting up a resin matrix system of "terminated hydroxyl polysiloxane modified epoxy resin + nano-alumina / boron nitride composite reinforcement," the problem of imbalance between high voltage resistance and aging resistance in existing materials is solved. It exhibits significantly improved dielectric strength, greatly reduced dielectric loss, and excellent high and low temperature cycling performance, meeting the long-life operation requirements of ultra-high voltage equipment.

The utility model relates to the technical field of handles, in particular to a multi-angle conversion handle which comprises a handle seat and the like. The screw is movably arranged on one side of the handle seat, one end of the screw extends into the handle seat and is connected with the handle body, the handle body is movably connected with the handle seat, and the elastic piece is arranged at the end, extending into the handle seat, of the handle body. The end, away from the handle body, of the elastic piece is fixedly connected with the steel ball, and the steel ball abuts against the inner wall of the handle base. Through the design of parts such as the screw and the handle body, the angle can be adjusted according to needs, higher flexibility and convenience are provided, the requirements of different users and using scenes are met, meanwhile, the steel balls connected with the elastic pieces slide in the handle base, friction force feedback is provided, and the safety of the handle is improved. A user can clearly perceive the rotation angle of the handle body, and the operation feeling is enhanced.

This utility model relates to the field of flue gas sampling technology, specifically to a flue gas sampling device, including a fixed housing. One side of the fixed housing is connected to one end of a delivery pipeline, and the other end of the delivery pipeline is connected to a sampling component. A set of adjustable mounting components are connected to opposite upper and lower surfaces of the fixed housing. Each set of adjustable mounting components includes an electric telescopic rod, one end of which is perpendicularly connected to the fixed housing, and the other end is connected to a mounting frame. A set of hydraulic telescopic rods are connected to the left and right sides of each mounting frame. The hydraulic telescopic rods and the sampling component are located on the same side of the fixed housing. A rotating component is connected to the end of each hydraulic telescopic rod furthest from the mounting frame. The rotating component includes a connecting shaft parallel to the hydraulic telescopic rod, and the end of the connecting shaft furthest from the hydraulic telescopic rod is perpendicularly connected to a clamping arm. This utility model improves the ease of installation and adaptability of the device, enhances installation stability, and ensures the accuracy and continuity of flue gas sampling.

This application discloses a diverter, which includes a valve housing, a pressure regulating component, and a diverting component. The valve housing includes an upper valve body shell and a lower valve body shell connected to each other. The upper and lower valve body shells constitute an inlet chamber, a return chamber, and an outlet chamber. The outlet chamber can communicate with the inlet chamber through the return chamber. The upper valve body shell is a one-piece molded component, and / or the lower valve body shell is a one-piece molded component. The pressure regulating component is disposed in the inlet chamber. The diverting component is disposed in the outlet chamber. The return chamber is used to collect the pressure-stabilized water after it has been stabilized by the pressure regulating component and the excess water returned by the diverting component, and then output it to the water purifier. A drinking water purification system using this diverter is also disclosed. The technical solution of this application integrates pressure reduction, diversion, and return functions into the valve housing, which not only simplifies the piping layout in the drinking water purification system but also greatly reduces the space occupied.

The utility model relates to the technical field of shock absorbers, in particular to a quick-release shock absorber support which comprises a base, a through groove is formed in the base in a penetrating mode, and a plurality of clamping blocks are arranged in the base. The circular plate is arranged in the through groove, a plurality of protruding blocks are distributed on the side wall of the circular plate in an annular array mode, and the lower ends of the protruding blocks are attached to the upper ends of the clamping blocks; the upper seat is arranged at the upper end of the base, a shock absorber is arranged between the lower end of the upper seat and the upper end of the circular plate, a plurality of sets of connecting assemblies are arranged between the lower end of the upper seat and the upper end of the base, and a plurality of holes are formed in the upper seat and the base in an annular array distribution and penetrating mode. When the shock absorber needs to be dismantled, the poking plate is poked to drive the clamping block to slide into the inner groove, then the circular plate slides out of the base, and meanwhile the circular plate drives the shock absorber to slide out and be dismantled, so that the shock absorber is rapidly and conveniently dismantled, the maintenance time is greatly shortened, and the overall operation efficiency of equipment is improved.

The utility model relates to the technical field of breaker with wear -resistant lining plate quick replacement structure discloses a breaker with wear -resistant lining plate quick replacement structure, including breaker body, the inside of breaker body is provided with crushing device, the top of breaker body is provided with feed inlet, the outside of feed inlet is provided with quick replacement subassembly, quick replacement subassembly includes lining plate body, butterfly bolt, sealing washer and thin wear -resistant rubber board, through the quick replacement subassembly that sets up, the sliding fit of spacing rod and spacing hole provides accurate orientation for lining plate body, realizes quick positioning, and the thread groove cooperation butterfly bolt of connecting plate and feed inlet, and staff can complete fixing and dismounting by hand, spares the tool operation, accelerates the replacement speed, and sealing washer and sealing groove guarantee sealing and do not increase the installation difficulty, above all, the cooperation of each part realizes lining plate body quick positioning and dismounting, shortens the replacement time, reduces the difficulty, promotes the maintenance efficiency.

The invention discloses a household 5G dual-frequency router convenient to disassemble, maintain and clean, and particularly relates to the router field, the household 5G dual-frequency router comprises a middle frame, the 5G dual-frequency router is arranged in the middle frame, the upper end face and the lower end face of the middle frame are covered with an upper shell and a lower shell respectively, and the upper shell, the middle frame and the upper shell form a protection cover for protecting the 5G dual-frequency router. According to the 5G dual-frequency router, the upper shell and the middle frame as well as the middle frame and the lower shell are mounted and dismounted through the arranged self-locking assembly and the elasticity of the upper shell, the mounting and dismounting steps are few, the mounting and dismounting difficulty of maintenance personnel is reduced, then the 5G dual-frequency router is positioned through the counter-acting force generated by the elasticity generated when the self-locking assembly is compressed, and the service life of the 5G dual-frequency router is prolonged. And when the household 5G dual-frequency router is strongly impacted, the internal vibration of the household 5G dual-frequency router is reduced, the 5G dual-frequency router is prevented from being damaged to influence signal transmission, and the service life of the household 5G dual-frequency router is prolonged.

The utility model relates to the technical field of reinforced gate lever, especially to a double-main-rod reinforced gate lever connecting device, including device main part, the lateral surface swing joint of device main part has the connecting plate, the lateral surface of connecting plate is equipped with the docking connection mechanism, the docking connection mechanism includes the socket ring, the socket ring is installed on the connecting plate, one side fixed coupling of socket ring has the fixed block, one side fixed coupling of fixed block has the nut, this double-main-rod reinforced gate lever connecting device is realized the stable connection of device main part and connecting plate through the setting of spacing axle, cooperates the encircling type distribution of multiple fixed rods, reinforcing rods in docking connection mechanism, and the rigid support of support column and mounting flange, can effectively disperse the stress of gate lever, avoids single connecting point overload damage, and the coincidence design of cylindrical guide rod and socket frame can prevent the shift of connecting part, greatly promotes the overall anti-deformation ability of double-main-rod connection, prolongs the service life of gate lever.

A kind of double half-ring type anti-settling buried protection device, including buried cylinder, buried upper cover and two clamps;The buried cylinder is the cylinder that is permeable up and down, the upper end of the buried cylinder is integrally formed with the detection cylinder section for built-in installation and protection gas detector;The buried upper cover can be detachably installed at the upper end of the detection cylinder section, for closing the upper port of the detection cylinder section, so as to protect gas detector when burying;Two clamps are detachably connected together and tightly embrace on the outer circumference of the detection cylinder section;The outer circumference of the clamp is integrally formed with anti-settling half-ring, and two anti-settling half-rings are synthesized into whole circular anti-settling ring.The buried cylinder of the utility model can effectively increase the contact reliability with the earth by two anti-settling half-rings, so that the buried cylinder can be stably fixed in the earth, the pressure capacity of buried protection device is enhanced, and settlement is avoided, and the design of two clamps can effectively reduce the installation difficulty of the whole device.

This utility model provides a switch for liquid metal printing, mainly relating to the technical field of liquid metal printing equipment. The switch for liquid metal printing includes a nozzle mounting plate, a graphite plate, ceramic fiber cotton, a fixing plate, a connecting rod, and a nozzle. The nozzle is fixedly installed on the lower part of the nozzle mounting plate, and the upper part of the nozzle mounting plate serves as the sealing surface of the switch. The nozzle mounting plate is fixedly installed in the printing crucible from top to bottom, providing a stable mounting reference for the entire switch. The advantages of this utility model are: this equipment can meet the high flow rate requirements with a single elongated switch, eliminating the need for multiple individual circular hole switches, simplifying the structure, reducing the disturbance of the switch to the liquid metal, and effectively improving the metal printing quality.

The application relates to the technical field of doors and windows, and discloses a narrow-edge casement window and a construction method thereof, which comprises a frame one, a middle frame one and a frame two, the frame one, the middle frame one and the frame two are all used for supporting the whole, a connecting block one is embedded in the frame one, an outer frame one is embedded on one side of the connecting block one, and the outer frame one is used for improving the appearance of the frame one; an outer frame three is arranged, a slot opening is arranged in the middle frame one, the outer frame three is arranged in the slot opening, and the outer frame three is used for supporting the whole; two glasses are fixedly connected with a mounting rack. Through the narrow-edge structure design, the area proportion of the frame and the sash is reduced, and the heat preservation performance is improved; the opening sash part and the fixed glass part are all provided with multiple seals, the opening sash is provided with three seals, the fixed glass is provided with two seals, the water resistance and the air tightness are improved, and when a mullion in the door and window is processed, a slot insertion type process is adopted, and a special connecting sleeve core is added, so that the resistance strength is greatly improved.

The utility model relates to the technical field of pipe fittings, in particular to a liquefied natural gas pipeline installing and positioning assembly which comprises a connecting disc, the connecting disc is installed between two liquefied natural gas pipelines, flanges are fixed to the ends of the liquefied natural gas pipelines, a plurality of screws are fixed to the two sides of the connecting disc respectively, and rubber sleeves are arranged on rod bodies of the screws in a sleeved mode. One end of the screw rod is sleeved and screwed with a nut, the outer ring surface of the connecting disc is provided with a rubber cover, and the rubber cover wraps the flange; the device has the beneficial effects that the rubber cover arranged on the outer ring surface of the connecting disc can wrap and protect the screw rod and the nut. After the screw rod and the nut are in threaded connection, the rubber cover is pulled out of the containing groove and arranged on the flange in a sleeving mode, the rubber ring is arranged at the connecting position of the liquefied natural gas pipe and the flange in a sleeving mode, erosion of external water vapor to the screw rod and the nut can be effectively reduced, the service life of a connecting part is prolonged, and the maintenance cost is reduced.

The utility model provides a photovoltaic module regular cleaning device which comprises an installation frame, a photovoltaic panel is fixedly installed on the inner side face of the installation frame, and supporting rods are fixedly installed on the periphery of the bottom of the installation frame. And two support frames. According to the periodic cleaning device for the photovoltaic module, through mutual cooperation of the mounting frame, the photovoltaic panel, the supporting frame, the bottom plate, the driving motor, the reciprocating lead screw, the movable plate, the pull rope, the mounting plate, the cleaning brush and other structures, when the photovoltaic panel needs to be cleaned, only the driving motor needs to be started, and then the photovoltaic panel is cleaned; according to the photovoltaic panel cleaning device, the reciprocating screw rod is driven to be in threaded connection in the moving plate, so that the moving plate is driven to move up and down, then the mounting plate and the cleaning brush are pulled by the pull rope to move repeatedly on the photovoltaic panel, and the upper surface of the photovoltaic panel can be cleaned, so that a large number of screw rods and bevel gears do not need to be used for driving; not only is the installation difficulty reduced, but also the use cost is reduced.

The utility model discloses a movable shed for flower protection, and relates to the technical field of flower planting, the movable shed comprises shed cloth and a shed frame, the shed cloth is fixed on the shed frame, the shed frame is composed of a plurality of door-shaped frames, the door-shaped frames are connected through folding frames, one side of each door-shaped frame is provided with a wind-resistant supporting leg, and the other side of each door-shaped frame is provided with a wind-resistant supporting leg. The door-shaped frames at the two ends of the shed frame are provided with self-take-up cable assemblies. The door-shaped frame with the universal wheels is matched with the folding frame, so that the movable shed is convenient to move, the movable shed is convenient to store through the folding frame, the movable shed is more convenient to install, the wind-resistant stability of the movable shed is greatly improved through the matching between the wind-resistant supporting legs and the self-take-up cable assemblies, and the movable shed is convenient to use. Meanwhile, through the wind-resistant supporting legs and the self-take-up assembly which are arranged in a folded mode, the installation difficulty is effectively reduced.

This invention discloses a high-precision centering and positioning steam-water nozzle for dual-section continuous casting, belonging to the field of metallurgical equipment technology. It includes a nozzle body, a connector, and a nozzle head. The nozzle body has a cuboid structure with a groove for connection to the connector, and two slots within the groove. One end of the connector is detachably equipped with the nozzle head, and the other end has a locking nut and a positioning pin. The locking nut is fixedly fitted onto the end of the connector, and the connector is threadedly connected to the groove on the nozzle body via the locking nut. Two positioning pins are symmetrically positioned on the end of the connector with the locking nut, and these pins are adapted to the slots within the nozzle body. The nozzle has a simple structure, is easy to use, reduces maintenance time when changing sections, and accurately, efficiently, and conveniently meets the installation requirements for the vertical dimension and centering accuracy of the nozzle head relative to the billet end face during production of different sections, ensuring the uniformity of secondary cooling of the continuously cast billet during actual production.

This application relates to the field of construction machinery, and discloses a fuel tank mounting structure for construction machinery and the construction machinery itself. The fuel tank mounting structure includes: a frame comprising multiple side plates and multiple support plates, the side plates being sequentially connected to enclose a fuel tank mounting area, and the support plates being sequentially and spaced along the circumference of the fuel tank mounting area on the inner side walls of the side plates; a fuel tank disposed in the fuel tank mounting area and comprising a fuel tank body and multiple tank support plates, the support plates being spaced along the outer circumferential wall of the fuel tank body, and the fuel tank body resting on the support plates via the support plates; and a fastening assembly for locking the support plates to their corresponding support plates. The fuel tank mounting structure and construction machinery of this application can reduce the difficulty of fuel tank installation and improve fuel tank stability.

The utility model discloses an assembly type crankshaft, including driving crank, driven crank and two balance blocks. The center of two balance blocks all is provided with the installation through -hole, and driving crank, driven crank are inserted in corresponding installation through -hole respectively. Two balance blocks are spaced apart, and are provided with connecting rod needle bearing between. Connecting rod needle bearing is divided into the installation part of middle and the insertion part of both ends. The insertion hole is set up on two balance blocks. The insertion hole eccentricity sets up on the balance block. Two insertion parts on connecting rod needle bearing are inserted in corresponding insertion hole. The utility model discloses through dividing crankshaft into driving crank, driven crank, connecting rod needle bearing and two balance blocks, and through the insertion type assembly between, make crankshaft be combined by multiple independent sections, and effectively solve the problem that integral type crankshaft processes difficultly.