35results about How to "Improve load stability" patented technology

The utility model relates to the technical field of vehicle-mounted articles, in particular to a two-section type vehicle-mounted refrigerator rack which comprises a supporting frame, a sliding rail assembly movably connected with the supporting frame and a tray movably connected with the sliding rail assembly and used for carrying a refrigerator, and the supporting frame comprises a back plate and two side plates fixed to the two ends of the back plate respectively. The reinforcing plates are fixed to the two sides of the tray and the inner sides of the side plates, the connecting blocks are movably connected with the reinforcing plates, the reinforcing plates are provided with a plurality of rolling wheels arranged side by side, the front face and the back face of each connecting block are provided with first sliding grooves and second sliding grooves matched with the rolling wheels, and the rolling wheels are embedded into the first sliding grooves and the second sliding grooves to roll. The connecting block is arranged at the connecting position of the tray and the supporting frame, the reinforcing plates with the rollers are arranged on the tray and the side plates, the rollers are movably connected with the connecting block, and a rigid frame structure of the side plates and the back plate is matched, so that the structure is simplified, the production cost is reduced, and the structural rigidity can be improved.

The utility model relates to a railway tunnel aerial work movable work platform which comprises a horizontally-arranged bearing platform and a crawling ladder fixedly arranged on the edge of one side of the bearing platform, the included angle between the plane where the crawling ladder is located and the bearing platform is an obtuse angle, and diagonal draw bars are fixedly arranged between the crawling ladder and the bearing platform; a plurality of directional brake trundles are arranged on the edge of the side, away from the crawling ladder, of the bearing platform, and the rotating planes of the directional brake trundles are all horizontally arranged; a plurality of bearing directional wheels are arranged on the edge of the lower side of the crawling ladder, and the rotating planes of the bearing directional wheels are all located on the plane where the crawling ladder is located; the bearing directional wheels are used for abutting against the groove wall of the side edge, away from the wall surface, of the ditch cable trough. The laying efficiency of the railway tunnel lining side wall cable can be improved.

The utility model relates to the field of bearing frock, concretely relates to a combined heat treatment bearing frock, including support chassis, be provided with the adjusting base in the support chassis, the top of support chassis is provided with the rotating ring, the top circumference of support chassis is provided with the connecting column, the outside of support chassis is provided with transmission outer tube, the outside of connecting column is provided with the moving block, the moving block is connected with adjusting base, the top of multiple moving blocks is provided with the round head. The utility model discloses through setting up support chassis and realizes the stable support of overall structure, utilizes the linkage between rotating ring and connecting column, drives moving block to carry out the height position of control round head, realizes the accurate positioning to work piece, further, through the cooperation of transmission outer tube and lifting rod, drives the stable board to expand outward, enhances the clamping and fixed effect of external circular ring class work piece, improves overall bearing stability.

The invention provides a load regulation system and method for a photovoltaic power generation network, and the method comprises the steps: extracting an active power feature and a reactive power feature in the photovoltaic power generation network from nonlinear load power, and determining a compensation relation between the reactive power and the active power in the photovoltaic power generation network through the reactive power feature; determining power loss characteristics during nonlinear fluctuation of the load according to the compensation relation and the active power characteristics; extracting a stationary feature of the linear load power, and performing balance prediction on the load power according to the stationary feature and a linear relationship between supply power and load demand in the linear load power to obtain a load balance value of the photovoltaic power generation network; and performing loss compensation on the load balance value by using the power loss characteristic to obtain a balance parameter value of the load power in the photovoltaic power generation network, and performing balance adjustment on the output power of the photovoltaic power generation network based on the balance parameter value of the load power. Based on the scheme, balance adjustment of the output power in the photovoltaic power generation network can be realized.

This invention relates to the field of trestle bridges, specifically to a trestle bridge for construction across railway lines and its usage method. The trestle bridge includes a trestle bridge module, approach bridge modules, a traveling module, and a support and guide module. The trestle bridge module is erected within a reserved passage area on the external track line. The approach bridge module is mounted on one side of the trestle bridge module via a rotating shaft and is pulled by the trestle bridge module. Two sets of traveling modules are installed on both sides of the ends of the trestle bridge module. The support and guide module is erected on the side of the reserved passage area facing the track. The hydraulic motor in the traveling module, in conjunction with the traveling wheels, drives the trestle bridge module to move rapidly along the guide roller seats of the support and guide module. Combined with the folding and unfolding functions of the approach bridge module, this enables rapid erection and dismantling of the trestle bridge, significantly shortening construction preparation time and dismantling cycle, avoiding prolonged interruptions to railway operations, and effectively solving the problems of long construction cycles and dismantling interference with normal railway operations caused by traditional trestle bridges.

The utility model discloses a kind of automobile front suspension lower swing arm structures, it is related to automobile parts technical field, to solve the problem of existing swing arm stress concentration, insufficient reliability. It includes swing arm body, swing arm body one side is equipped with ball pin seat, the other side front end is equipped with first bushing, rear end is equipped with second bushing, body is equipped with connecting rod, connecting rod is equipped with shock absorber mounting seat;Swing arm body is U-shaped opening structure, there is S-shaped first reinforcing rib in;Connecting rod is arched, hollow and there is S-shaped second reinforcing rib in, set up stop board at arching place. First reinforcing rib direction is parallel with bushing axis, bushing and shock absorber mounting seat axis are parallel. The structure is formed by reinforcing rib triangular support dispersion stress, give consideration to lightweight and high strength, improve load stability, applicable to automobile front suspension system.

This invention belongs to the field of wastewater treatment technology, specifically relating to a heavy metal scavenging agent modified with boric acid-hydroxyoxime groups, its preparation method, and its application. The boric acid-hydroxyoxime group-modified heavy metal scavenging agent comprises a three-dimensional network structure formed by the dehydration condensation bridging of polyaluminum chloride and boric acid, and hydrogen-bonded hydroxamic acid groups. This invention uses polyaluminum chloride (PAC) as the main framework, forming Al-O-B boron-oxygen covalent bonds through the dehydration condensation of boric acid and the hydroxyl groups of PAC, bridging the oligomeric PAC into a stable three-dimensional network polymer structure, thus enhancing its adsorption bridging ability. Then, it adsorbs acetylhydroxamic acid onto the boron-bridged PAC framework through a multiple hydrogen bond network, constructing a heavy metal scavenging agent with flocculation, adsorption, and chelation functions. The heavy metal scavenging agent of this invention has a stable structure, can be reused multiple times, and has high heavy metal capture efficiency.

The utility model relates to a variable pitch mechanism, paddle hub assembly, rotor mechanism and aircraft, relate to aircraft technical field to solve the problem of complex, inconvenient maintenance or lubrication management complex of multi-bearing combination assembly in the prior art. The utility model's variable pitch mechanism, including variable pitch hinge support piece, paddle clip shell and transmission assembly, transmission assembly sets up between variable pitch hinge support piece and paddle clip shell, transmission assembly includes tapered roller bearing and bearing lubrication passageway, bearing lubrication passageway provides lubricating oil to tapered roller bearing, and tapered roller bearing provides axial and radial collaborative load for the relative motion of variable pitch hinge support piece and paddle clip shell. The utility model passes through tapered roller bearing, effectively deals with the composite load produced in the variable pitch process, and bearing lubrication passageway can continuously provide lubricating oil to tapered roller bearing, reduces friction loss, prolongs bearing service life, and improves the operation stability and reliability of variable pitch mechanism.

The invention belongs to the technical field of high polymer materials, and particularly discloses a degradable breathable antibacterial material for reverse clothing and a preparation method thereof, and the degradable breathable antibacterial material comprises the following raw materials by weight: 90-100 parts of polylactic acid, 15-20 parts of modified antibacterial particles, 10-15 parts of polyvinyl alcohol, 5-10 parts of modified starch, 4-7 parts of a plasticizer, and 1-2 parts of an antioxidant. According to the degradable breathable antibacterial material for the reverse clothing, the polylactic acid is used as a main body, and the modified antibacterial particles, the polyvinyl alcohol, the modified starch and other functional components are used as auxiliary materials, so that the prepared material for the reverse clothing has excellent degradability, breathability and antibacterial performance, the components are reasonable in proportion, the processing performance is good, and industrial production is easy to achieve.

The application belongs to the field of water treatment, and particularly relates to a high-porosity compressed silver-loaded activated carbon filter element and a low-temperature bonding manufacturing method thereof, aiming to solve the technical problems of low porosity, poor silver loading stability and high-temperature process destroying the pore structure of the existing activated carbon filter element. The filter element adopts plasma surface activation pretreatment to introduce oxygen-containing functional groups on the surface of the activated carbon as chemical anchor points of silver, realizes the bimodal silver spatial distribution of microporous ionic silver and mesoporous nano silver clusters through hierarchical silver loading treatment, utilizes a composite adhesive system to cooperate with a low-temperature molding and steam setting process, and finally constructs a through microchannel network through the removal of a pore-forming agent. Through the adoption of the above technical scheme, the application can realize high-porosity retention rate, significantly improve the silver loading stability and antibacterial durability, achieve the balance of high strength and low water flow resistance, and the process is green and environmentally friendly, and is suitable for large-scale industrial production.

The utility model relates to full grouting sleeve technical field discloses a full grouting sleeve with good sealing effect, including the cylinder wall, the upper end outside fixed connection of cylinder wall has the liquid outlet pipe, the lower end outside fixed connection of cylinder wall has the liquid injection pipe, the upper and lower sides of cylinder wall all are provided with the reinforcing steel bar, the upper and lower ends fixed connection of cylinder wall has the fixed ring, the inboard fixed connection of fixed ring has the fixed sealing ring, the outside screw thread connection of reinforcing steel bar has the sliding sealing ring, the inside of upper and lower ends of cylinder wall is provided with a plurality of first buckles, one end fixed connection of first buckle is in the inside of upper and lower ends of cylinder wall, the other end of first buckle is close to the outside of reinforcing steel bar, the inclination direction of first buckle is consistent with the movement direction of reinforcing steel bar, the inside of the middle part of cylinder wall is provided with the limit component, in the utility model, through double -layer sealing structure, prevent slurry leakage, accurate positioning reinforcing steel bar depth, effectively promote construction sealing property and structure bearing stability.

The application discloses a cylindrical glass piece packaging box and a packaging method thereof, wherein the packaging box comprises a spliced cover plate which is spliced by wooden boards and flexible buffer boards in a horizontal direction; a clamping groove is formed in the wooden board and is embedded with a notch on a support to limit the displacement of a protection mechanism in a vertical direction; wherein a first limiting support is arranged on the outermost side of a first protection part, and a second limiting support opposite to the first limiting support is arranged on the outermost side of a second protection part; a slope is arranged on the opposite surface of the first limiting support and the second limiting support respectively, and the two slopes are oppositely arranged and used for abutting against and limiting the sharp end of the end part of the cylindrical glass piece; through the above mode, the application can effectively solve the breakage problem of the cylindrical glass piece caused by the shaking of the protection mechanism and the lack of reliable limiting of the special-shaped end part during transportation, and improve the protection performance and loading and unloading convenience of the packaging.

This utility model discloses a laser cutting machine unloading device, including a support frame, an inclined support rod at the upper end of the support frame, a telescopic cylinder movably connected to the inclined support rod, a V-shaped tube support frame on one side of the upper end of the support frame, the V-shaped tube support frame being fixedly connected to the telescopic cylinder, an inclined support frame on one side of the support frame, and several buffer support components on the inclined support frame, the telescopic cylinder being used to control the flipping action of the V-shaped tube support frame. Product advantages: Through the combined design of the inclined support rod and the telescopic cylinder, the flexible flipping of the V-shaped tube support frame is realized, thereby achieving automatic unloading of the tube, significantly reducing manual intervention, greatly improving unloading efficiency, meeting the needs of modern manufacturing automation production, and reducing labor costs and labor intensity.

This invention discloses a telescopic live-line working insulation shielding device with an insulator as the fixing point, belonging to the technical field of insulation shielding devices. It includes: a fixing sleeve, fitted onto the top of the insulator body, with cable-passing grooves on both sides; and a shielding assembly, disposed on the side of the fixing sleeve, comprising multiple hard and soft covers; the multiple hard and soft covers are sequentially and alternately connected to form a hollow sleeve structure, which can be opened and closed relative to each other at its radial midpoint to secure it to the cable; and the hollow sleeve structure has two switchable states: a bent state and a rigid straight state. This telescopic live-line working insulation shielding device with an insulator as the fixing point improves the safety and shielding reliability of live-line work by alternately splicing hard and soft covers to form the shielding assembly.

The invention discloses a movable transformer performance detection device and a transformer detection method, and relates to the technical field of transformer detection. According to the movable transformer performance detection device and the transformer detection method, a detection bin is included, a lifting mechanism is arranged at the front end of the detection bin, a lower base serves as a main body of the detection bin, and a driving object feeding rod and a driven object feeding rod are arranged at the front end and the rear end in the lower base correspondingly; the two ends of the driving feeding rod and the two ends of the driven feeding rod are matched with kidney-shaped holes in the left end and the right end of the interior of the lower base, driving synchronous wheels are connected to the two sides of the driving feeding rod, driven synchronous wheels are connected to the two sides of the driven feeding rod, and synchronous conveying belts are connected between the driven synchronous wheels and the driving synchronous wheels. A supporting plate is arranged on the lower portion of the interior of the lower base, the upper end of the supporting plate is connected with a four-column guide frame, the upper end of the four-column guide frame is connected with a stabilizing plate, and the interior of the four-column guide frame is connected with a moving plate.

The invention discloses a three-dimensional star-shaped negative Poisson's ratio honeycomb structure with gradient stiffness. The three-dimensional star-shaped negative Poisson's ratio honeycomb structure is formed by stacking a plurality of star-shaped negative Poisson's ratio honeycomb two-dimensional arrays; the star-shaped negative Poisson's ratio honeycomb two-dimensional array comprises a plurality of primary star-shaped negative Poisson's ratio honeycomb cells; primary star-shaped negative Poisson's ratio honeycomb cells in adjacent star-shaped negative Poisson's ratio honeycomb two-dimensional arrays are arranged in an array in an orthogonal stacking manner to form a three-dimensional star-shaped negative Poisson's ratio honeycomb structure; the first-stage star-shaped negative poisson ratio honeycomb cell element comprises four concave arms distributed in a cross shape, and each concave arm comprises an external straight beam and two internal folding beams connected to the two sides of the external straight beam; the four concave arms are connected through the internal folding beams to form a first-stage star-shaped negative poisson ratio honeycomb cell element; the gradient stiffness is realized through the following setting: the thickness of the internal star-shaped negative Poisson's ratio honeycomb two-dimensional array is greater than that of the outermost side. The structure provided by the invention has potential application in preparation of auxetic metamaterials and impact-resistant protective materials.

This invention provides a composite membrane adsorbent material, its preparation method, and its application. IRMof-16 material is uniformly dispersed and loaded onto a PVP nanofiber membrane prepared by electrospinning using a spray-doping method. The IRMof-16 material is prepared by dissolving a zinc salt in an organic solvent and dissolving p-terphenyl-4,4′-dicarboxylic acid in anhydrous ethanol. The two solutions are then mixed and subjected to a hydrothermal reaction to obtain the IRMof-16 material. The IRMof-16 material of this invention possesses a high specific surface area, suitable pore size, and abundant active sites. Combined with the high permeability of the PVP nanofiber membrane, it synergistically achieves highly efficient and selective adsorption of C4F7N decomposition products, significantly outperforming traditional adsorbent materials. IRMof-16 itself exhibits excellent hydrothermal and chemical stability, forming a weak coordination interaction with the PVP nanofiber membrane, greatly enhancing the mechanical strength and load stability of the composite membrane. The moisture resistance of PVP allows the composite membrane to withstand the humid environment of power equipment, with a capacity retention rate ≥93% after 5 cycles of adsorption, resulting in a long service life.

The utility model discloses a lifting mechanism for stacking multiple layers of articles, which comprises a total framework, at least two movable platforms and lifting components, the movable platforms and the lifting components are arranged on the total framework, the at least two movable platforms are horizontally arranged and are arranged at intervals along the vertical direction, the number of the lifting components corresponds to the movable platforms, and the number of the lifting components corresponds to the number of the movable platforms. The lifting assembly can lift the two ends of the movable platform at the same time. The movable platform comprises a telescopic driving part arranged at the lifting end of the lifting assembly and a first platform arranged at the driving end of the telescopic driving part, and the telescopic driving part is used for driving the first platform to move horizontally; a first lifting assembly is arranged at the top of the main framework and used for lifting objects to the first platform. According to the utility model, the loading and unloading requirements of stacking of multiple layers of articles can be effectively met.

This invention relates to the field of biomedical technology, providing a microsphere composition and its preparation method, as well as its application in the preparation of contrast agents and drugs. The microsphere composition includes a microsphere dispersant and microsphere particles; the microsphere particles include a shell and a core; the shell comprises a lipid mixture consisting of charged lipids and auxiliary lipids; the core comprises an optional therapeutic gas, and one or both of an inert gas or inert liquid; the molar amount of charged lipids is ≤60% based on the total molar amount of the lipid mixture; the pH value of the microsphere dispersant is 5-6.9. The microsphere particles of this invention can efficiently load therapeutic gases and conventional drugs, precisely target their application, exhibit excellent stability, and have high biocompatibility.

The utility model relates to a ton bag convenient to turn over materials, in particular to the technical field of labor and material property transportation, which is provided with foldable supporting foot columns, guide limiting rings, crossed reinforcing rib plates and the like and connected through rotary hinges between the foldable supporting foot columns and a rigid supporting frame. The foldable supporting foot columns can form stable included angles with the ground when being unfolded through the linkage inhaul cable assembly and the limiting and guiding effects of the guiding limiting rings on the linkage inhaul cable assembly, stable supporting is provided for the ton bag, and meanwhile the guiding limiting rings ensure that the motion trail of the linkage inhaul cable assembly is accurate. The crossed reinforcing rib plates in the rigid supporting frame form a #-shaped bearing structure, so that the overall rigidity is enhanced. The movable discharging bottom plate is made of polyurethane reinforced fabric composite materials and provided with anti-sliding protruding lines, durability and material bearing stability are improved, and then the effects that the device can achieve stable supporting and precise linkage and safely and efficiently complete material overturning and bearing are achieved.

The utility model relates to the technical field of sighting telescope accessory processing, specifically relates to a kind of polishing device for sighting telescope accessory processing, and recessed groove and circumferential positioning hole with slot are set in polishing wheel top end;When the clamping plate is embedded into the recessed groove, the positioning pin at the bottom of the clamping plate is inserted into the positioning hole to prevent radial displacement, and the shaft is locked axially by the bottom nut after the screw is inserted into the slot;The clamping plate is connected to the output end of the driving motor to transmit torque;The driving mechanism is connected to the first internal thread block through the L-shaped plate, and the height of the polishing wheel is adjusted by the vertical screw mechanism of the first sliding table;The second sliding table is arranged on the other side of the supporting table, and the workpiece spacing is adjusted by the horizontal screw mechanism and the rotating disc, and the workpiece clamp is installed in the rotating disc fixing hole;The full end surface cooperation of recessed groove and clamping plate improves the bearing stability, the screw nut bidirectional constraint eliminates vibration loosening, and the positioning pin resists radial shear force;This structure ensures high-speed polishing zero deviation and zero movement, improves the surface processing quality of optical accessory and operation safety.

This invention discloses an antibacterial smart sofa fabric with integrated temperature sensing and its control method, belonging to the field of temperature measurement technology. The invention includes the following: an antibacterial fabric base layer loaded with antibacterial particles, forming a double-layer structure and bonded together; a temperature sensing integrated module with a temperature sensor integrated between the fabric base layers; an intelligent control module with a microcontroller as its core, receiving data and outputting control commands; a power supply module including a battery and a wireless charging coil, featuring protection functions and low battery warnings; a human-machine interaction module with a display screen and physical buttons displaying core information; a data storage module using a storage chip to store relevant operational data; and an antibacterial enhancement and control module including atomization and airflow circulation units, automatically activating when antibacterial activity is insufficient. This invention provides stable and long-lasting antibacterial performance, maintaining a long-term antibacterial effect through a dynamic enhancement mechanism. Distributed sensing and environmental compensation design improve measurement reliability, and multimodal interaction is convenient, adapting to different usage scenarios.

The invention discloses a composite anchoring structure and an anchoring method of a wind power mixed tower, the composite anchoring structure comprises a mixed tower body, the lower part of the mixed tower body is a concrete tower tube section, and the composite anchoring structure further comprises a concrete foundation buried under the earth surface and used for bearing the mixed tower body; the external pre-stressed anchoring assembly comprises a pre-stressed cable and an anchor base, the upper end of the pre-stressed cable is connected with the mixed tower body, the lower end of the pre-stressed cable extends to the outer side of the concrete foundation and is anchored to the upper portion of the outer side wall of the concrete foundation through the anchor base, and an anchoring point is higher than the ground surface; the built-in pre-stressed anchor bolt assembly comprises a pre-stressed anchor bolt, an upper anchor plate and a lower anchor plate, the upper anchor plate is pre-embedded in the top of the concrete foundation and fixedly connected with the bottom of the concrete tower drum section, the lower anchor plate is pre-embedded in the lower portion of the interior of the concrete foundation, the pre-stressed anchor bolt penetrates through the concrete foundation, and the two ends of the pre-stressed anchor bolt are fixedly connected with the upper anchor plate and the lower anchor plate correspondingly; prestress is applied to the concrete foundation, and the concrete tower drum section is anchored on the concrete foundation. The problems that a traditional anchoring structure is inconvenient to construct, difficult to overhaul and prone to cracking and water seepage are solved.

The utility model provides a kind of lightweight high-strength ultrahigh molecular rope core, belong to steel wire rope core technical field.The lightweight high-strength ultrahigh molecular rope core includes a ultrahigh molecular weight polyethylene inner core, multiple ultrahigh molecular weight polyethylene skeleton, multiple inner layer steel wire, multiple outer layer steel wire, multiple oil-containing triangular natural fiber filling core, multiple arc synthetic fiber core, multiple oil-containing triangular natural fiber core, a flexible layer and a wear-resistant layer, the flexible layer and wear-resistant layer are provided with multiple through holes.The above-mentioned structure is combined to realize the effective balance of lightweight and high strength, so that the rope core maintains structural integrity during stretching, bending and twisting process, is lightweight and high-strength, has high bearing stability, wear resistance, fatigue resistance and self-lubricating properties, thereby significantly improving the performance and service life of the manufactured steel wire rope.

This utility model discloses a prefabricated building with high safety performance, including a base. A support frame is welded to the top of the base, and damping springs are welded to both sides of the bottom of the inner cavity of the support frame. By incorporating damping springs and dampers, this utility model provides excellent buffering and shock absorption when the building is subjected to vibration, improving its seismic performance and reducing damage to the building structure. The diagonal bracing plates provide support and reinforcement for the connecting plates, enhancing the stability of the connection between the connecting plates and the support frame, and preventing the connecting plates from tilting or deforming under stress. The first corner bracing plate strengthens the connection between the top plate and the support frame, improving the stability of the top plate installation and preventing the top plate from loosening or falling off under stress. The overall structural design is reasonable, and the connections between components are firm, effectively improving the overall structural stability and safety performance of the building and extending its service life.

The utility model discloses unpowered interval feeding equipment of a Z-shaped hoister, and relates to the technical field of conveying machinery, a conveying chain is arranged in the hoister, a plurality of hoppers are distributed along the conveying chain, a stock bin is arranged on one side of a low-position horizontal section of the hoister, and a discharge port at the lower end of the stock bin is connected with a feeding device; the feeding device comprises a feeding shell and a rotary discharging barrel rotationally arranged on the feeding shell, and a plurality of discharging openings are formed in the rotary discharging barrel in the circumferential direction of the rotary discharging barrel at intervals. The feeding device is further provided with a transmission part, and the transmission part is in transmission connection with a conveying chain of the elevator, so that a rotary discharging barrel of the feeding device is driven by the conveying chain to rotate synchronously, and then it is ensured that the discharging position of the rotary discharging barrel is matched with the movement position of the hopper in the low-position horizontal section in real time; discharged materials of a single discharging opening of the rotary discharging barrel fall into a certain hopper passing through the lower portion of the rotary discharging barrel. The feeding device makes full use of original power of the elevator, self-synchronization of the feeding action is achieved through mechanical linkage, and the complexity of a control system is simplified.

This invention relates to a high-strength multiphase hot-rolled wire rod for 2360MPa grade stranded wire and its manufacturing method. The method involves rolling the wire rod into a high-carbon Mo-V system, followed by online molten salt weak quenching and toughening treatment. The wire rod undergoes rapid cooling in the initial molten salt treatment, transitioning from an austenitic state to a mixed phase region of bainite and sorbite, forming a microstructure dominated by bainite and sorbite. A subsequent molten salt treatment increases the molten salt temperature, promoting the decomposition of untransformed residual austenite into sorbite, followed by isothermal tempering. Finally, the wire rod undergoes slow cooling on a roller conveyor, resulting in a hot-rolled wire rod with a microstructure consisting of tempered bainite and tempered sorbite, comprising a multiphase microstructure. This allows for online control of the microstructure and toughness, achieving a tensile strength of 1574~1627MPa and a reduction of area of ​​28%~33%, reducing fluctuations in mechanical properties and balancing material cost and production efficiency. This eliminates the need for offline heat treatment to produce ultra-high-strength stranded wire, reducing the risk of wire breakage.

The application discloses a kind of old type intelligent telescopic pedal for vehicle, including telescopic pedal, vehicle detection module, control module;Telescopic pedal is installed below the door of vehicle body, can be extended and withdrawn relative to vehicle body along horizontal direction, to realize the convergence with platform;Vehicle detection module is installed at the position close to the door of vehicle body, for detecting car platform distance, telescopic path obstacle and system failure;Control module is electrically connected with telescopic pedal, vehicle detection module respectively, can control pedal automatic telescoping or switch manual mode according to distance signal, and control pedal emergency stop or retract when detecting obstacle or failure, and trigger alarm prompt.The application can realize the automatic accurate convergence of vehicle and platform, eliminate the risk of height difference when getting on and off, have obstacle protection, failure alarm, safety locking and state visualization function, structure is reliable, safe to use, suitable for public transport vehicles such as bus, coach.

This utility model discloses an elliptical rubber bushing, including an outer bushing tube and an inner bushing tube arranged coaxially. The outer bushing tube is composed of a straight part and a semi-circular part forming an elliptical structure. An integral rubber main spring is vulcanized in the gap between the inner wall of the outer bushing tube and the outer wall of the inner bushing tube. An integral rubber strap is vulcanized on the outer surface of the outer bushing tube. Through a high-temperature vulcanization process, the outer bushing tube, the inner bushing tube, the rubber main spring, and the rubber strap are vulcanized into one piece to form an elliptical rubber bushing. Utilizing its asymmetrical structure, it provides differentiated stiffness in different directions. The higher stiffness in the longitudinal direction ensures support stability, while the larger elastic deformation space in the lateral direction can effectively absorb vibration, achieving independent control of multi-directional stiffness and adapting to compact installation spaces. This solves the technical problems of existing circular bushings having a limited range of adjustable stiffness in a specific direction, making it difficult to meet the dynamic performance requirements under complex working conditions and the limited space in some installation scenarios.