83results about How to "Avoid reliability" patented technology

The invention provides a metal component surface defect joint detection method, which relates to the field of metal detection, and comprises the following steps: S1, placing a workpiece; s2, eddy current detection; s3, transferring the workpiece; step S4, visual detection; and S5, judging the workpiece. The method integrates eddy current and mechanical vision to analyze and judge the surface defects of the thin-walled tubular or cylindrical metal component, and effectively solves the problems that a single machine vision detection method cannot accurately and quickly detect the surface defects of the metal component, detection blind areas are easy to appear, and the detection efficiency is high. And the problems of insensitivity, inaccurate quantification, easy signal interference and the like of single eddy current flaw detection on the surface defects of the metal components are solved, and efficient, accurate and comprehensive surface flaw detection of the metal components is realized.

The invention provides an engine heat insulation layer defect automatic detection line, and relates to the technical field of engine detection, the engine heat insulation layer defect automatic detection line comprises a marble platform, and the top of the marble platform is provided with a measuring rod fixing welding seat. According to the invention, the position and direction of the monitoring mechanism are adjusted to adapt to different detection requirements, the mechanical arm can accurately position and control the detection tool at the position needing to be detected, errors and uncertainty of manual operation are avoided, and the accuracy and reliability of detection are improved. The mechanical arm also has high flexibility and accuracy, can freely move in a three-dimensional space, and can carry out detection work with high repeatability and long duration time, so that the working efficiency and accuracy are improved, and the detection mechanism has the advantages that the detection mechanism can be used for carrying out nondestructive detection technologies such as ultrasonic wave, laser imaging, thermal imaging and the like; the thermal insulation layer surface is scanned and analyzed to detect and identify surface defects and damage.

The invention discloses a once-through furnace water supply system coupled with a steam feed pump set and a hydraulic turbine booster pump set and a control method. Compared with a conventional once-through furnace water supply system, the once-through furnace water supply system is coupled with a full-flow water supply bypass system comprising a water supply bypass header, the hydraulic turbine booster pump set, a water storage tank and other equipment; the device is put into use during deep peak regulation of the once-through furnace. Detailed control strategies are elaborated on the basis and include control methods of the full-flow water supply bypass system in different stages of commissioning, dry-wet state conversion and the like. According to the method, the economical efficiency and the adjusting performance of the direct-current furnace during deep peak shaving are improved, the inlet flue gas temperature and the denitration efficiency of the SCR denitration system can be increased by improving the dry-wet state conversion load point of the direct-current furnace, and the environment-friendly performance of the direct-current furnace during deep peak shaving is improved.

The invention discloses an electro-absorption modulated laser chip and a manufacturing method thereof, and relates to the technical field of semiconductor devices.The chip comprises a substrate, a modulator layer, a passive waveguide layer, a laser layer, an amplifier layer, a wrapping layer and a contact layer, the passive waveguide layer is arranged in a spacer region between the laser layer and the modulator layer in a butt-joint growth mode, the amplifier region is arranged on the other side of the modulator layer, the laser layer is arranged in the laser region on one side of the passive waveguide layer in the spacer region in a butt-joint growth mode, and the amplifier layer is arranged above the passive waveguide layer in the amplifier region. The cladding layer and the contact layer are sequentially arranged above the functional layer, a mask is used for covering a specific area in the butt-joint growth process, and the mask is removed after growth; according to the technical scheme, the active gain material of the amplifier region can be manufactured on the passive waveguide material while the manufacturing steps are simplified, the optical signal loss is reduced, and the chip saturated light output power is improved.

The invention relates to the field of pipeline safety, and provides a multi-dimensional joint distribution-based multi-defect pipeline evaluation method, device and equipment, and the method comprises the steps: obtaining input data, inputting the input data into a constructed probability distribution model of a pipeline under the action of a single defect, and outputting the failure probability of each defect of the pipeline and the probability distribution of each defect; the constructed probability distribution model of the pipeline under the action of the single defect is constructed according to actual pipeline detection data, historical failure data and related evaluation standards of the pipeline defect; according to the probability distribution of each defect, a multi-dimensional joint probability distribution model among the defects is constructed based on the relationship between a Vine Copula function and the reliability of the series pipeline system; and based on the inter-defect multi-dimensional joint probability distribution model, determining the reliability of the pipeline according to the failure probability of the pipeline under the action of the single defect. According to the invention, the problem that the reliability evaluation result of the pipeline is not accurate enough in the prior art is solved, and the effect of accurately evaluating the reliability of the pipeline is realized.

The utility model discloses a cleanliness particle detection instrument filter membrane carrier which comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixing plate, the interior of the fixing plate is slidably connected with a displacement block, the top of the displacement block is provided with a placing groove, one side of the fixing plate is fixedly connected with a fixing block, and the interior of the fixing block is provided with a sliding groove. A limiting assembly is arranged in the sliding groove, one side of the bottom plate is fixedly connected with a first mounting frame, and the other side of the bottom plate is fixedly connected with a second mounting frame. The utility model aims to solve the problems that the instability and the reliability of an experimental result are reduced due to inconsistent pressure applied by different operators, and the test result is not stable and reliable when a filter membrane carrier of a traditional cleanliness particle detection instrument is used for manually pressing the filter membrane and then detecting the filter membrane through a microscope, and the filter membrane carrier cannot be used for detecting the filter membrane when the filter membrane is pressed. The problem that the detection efficiency of the device is reduced due to inaccurate detection data caused by the fact that a container for bearing the filter membrane is likely to move in the prior art is solved.

The invention relates to a high-proportion new energy power distribution network voltage stability risk assessment method and device and a medium, and the method comprises the following steps: S1, obtaining weather forecast information, and photovoltaic output data and load measurement data at the current moment, and predicting future photovoltaic output and load through an improved BILSTM algorithm; s2, according to the prediction result, the topological structure of the current power distribution network and a standby topological structure formed based on a potential tie line, carrying out load flow calculation by adopting a Newton-Raphson method, and obtaining voltage vectors of nodes of the power distribution network under the topological structures in the future moment; and S3, calculating a voltage stability risk L index of the power distribution network under each topological structure based on the voltage vector in combination with the admittance matrix of each node of the power distribution network, and judging whether a voltage instability risk exists or not. Compared with the prior art, the online voltage stability risk under the high-proportion new energy power distribution network can be accurately evaluated, and early warning and guidance are provided for operation of a power system in real time.

The invention provides a hybrid bonding structure and bonding method based on an interlocking structure, and the structure comprises a first chip to be bonded, which is provided with a silicon oxide layer and a first connecting piece protruding out of the silicon oxide layer; the second chip to be bonded is provided with a polyimide layer, a recess arranged in the polyimide layer and a second connecting piece arranged at the bottom of the recess, the surface of the second connecting piece is provided with a first adhesion layer, and the first connecting piece and the second connecting piece are made of copper and / or aluminum; the first chip to be bonded and the second chip to be bonded are configured as follows: before bonding, the height difference of the first connecting piece protruding out of the oxide layer is greater than the height difference of the top surface of the first adhesion layer and the top surface of the silicon oxide layer; the silicon oxide layer is connected with the polyimide layer, and the first connecting piece extends into the recess and is connected with the second connecting piece through the first adhesion layer to form an interlocking structure. The method is used for optimizing the performance of the hybrid bonding process and the bonding structure.

The application discloses a gallium oxide vertical device and a preparation method thereof. The gallium oxide vertical device comprises an epitaxial structure, a cathode and an anode matched with the epitaxial structure, the epitaxial structure comprises a heavily doped n-type Ga2O3 substrate, a lightly doped n-type Ga2O3 drift region, an interlayer and a p-type nitride epitaxial layer which are sequentially stacked, the lightly doped n-type Ga2O3 drift region, the interlayer and the p-type nitride epitaxial layer form a p-i-n structure, the cathode forms an ohmic contact with the heavily doped n-type Ga2O3 substrate, and the anode forms an ohmic contact with the p-type nitride epitaxial layer, wherein the material of the interlayer is an Al-containing compound, and the surface layer region of the lightly doped n-type Ga2O3 drift region close to the interlayer also has Al elements, the Al elements are diffused into the lightly doped n-type Ga2O3 drift region in the bonding process under high pressure.

The invention discloses an ultrasonic output current stabilization time regulation and control circuit board, a regulation and control method and a driving circuit. The circuit board comprises a multiplexing module and an operational amplification module. Wherein the multiplexing module comprises a multiplexer and a plurality of capacitors; the capacitance values of the plurality of capacitors are gradually increased; and the operational amplification module is connected with the multiplexer. According to the sound output current stabilization time regulation and control circuit board, the regulation and control method and the driving circuit, the welding quality can be improved.

This invention provides a gear power transmission device for a speed reducer, relating to the field of gear reducer technology. The device includes a speed reducer body and an intelligent monitoring and self-cleaning system mounted on a base plate. This invention, through real-time monitoring of multiple parameters such as oil viscosity, abrasive particle concentration, and morphology, can accurately capture early anomalies and effectively distinguish wear types. After diagnosing anomalies, it can automatically purify the lubricating oil online, removing harmful abrasive particles without stopping the machine, effectively extending the lifespan of the oil and equipment. The highly integrated multi-functional modules within a unified detection box result in a compact structure, improving the overall reliability of the system and avoiding the looseness and unreliability issues of external structures in harsh industrial environments, thus enhancing the intelligence level of fault diagnosis. The introduction of machine learning-based automatic particle morphology recognition technology replaces offline analysis relying on professionals, lowering the technical threshold and making fault diagnosis more intuitive and efficient.

The invention discloses a vehicle positioning method, device and equipment, a storage medium and a product, and relates to the technical field of vehicle positioning. The method comprises the steps of determining a local map which corresponds to an original pose of a vehicle and is determined based on a high-precision map, and respectively determining a transverse distance between the vehicle and each map lane line in the local map and a transverse distance between the vehicle and each detection lane line in a lane detection result based on the original pose, the lane line polarity of each map lane line and the lane line polarity of each detection lane line are determined according to the determined transverse distance, and the lane line polarity is used for representing the side direction of the lane lines in the vehicle and the lane line sequence in the side direction; and matching the map lane line corresponding to the lane line polarity with the detection lane line to obtain target correction information, and correcting the original pose based on the target correction information to obtain a target pose of the vehicle. By adopting the technical scheme, the reliability of a positioning result can be improved.

The utility model relates to a kind of bush type air expansion shaft, comprising: always fill air expansion shaft;Bushing expansion piece is set in the large diameter end of the always fill air expansion shaft, and its outer ring is polygonal structure;And reel is set in the outside of the bushing expansion piece and is lifted inner wall by the edge of the polygonal structure when the bushing expansion piece tightens.Compared with prior art, the utility model has the advantages of preventing reel slip, improving winding stability, improving product yield, etc.

This application provides a laser semiconductor chip packaging structure, packaging method, and electronic device, relating to the field of packaging technology. In this packaging structure, a first substrate has through-holes; the height of the laser semiconductor chip and leads disposed in the through-holes of the first substrate and on a second substrate does not exceed the upper surface of the first substrate; the through-holes of the first substrate are filled with optical adhesive. The space formed in the through-holes of the first substrate accommodates the laser semiconductor chip and leads. Since the highest point of the leads remains below the upper surface of the substrate after wire bonding, it does not affect screen printing, component mounting, and reflow soldering. Therefore, wire bonding can be performed before reflow soldering, thereby avoiding the influence of flux residue after reflow soldering on the wire bonding process.

This invention relates to the field of data processing technology for predictive purposes, and discloses a method for adjusting the power generation performance of an energy system throughout its entire life cycle. The method determines the parameter boundaries of a wind-solar-storage power supply system, divides the entire life cycle planning period into multiple consecutive life stages, and determines the load demand input for the entire life cycle. It sets a baseline power generation performance at the initial commissioning stage, calculates the degradation maintenance level for each stage, establishes a monotonic mapping relationship between the degradation maintenance level and maintenance intensity, constructs a stage-dependent model for calculating available power generation capacity coupled with degradation and maintenance, and obtains available power supply capacity parameters for each stage of the entire life cycle. It generates a maintenance time series distribution through Monte Carlo simulation and constructs a set of life cycle power generation performance evolution scenarios. With the goal of minimizing the total cost throughout the entire life cycle, a mixed-integer linear programming model is constructed to obtain the optimal capacity configuration and adjust the power generation performance throughout the entire life cycle. This method solves the problems of ignoring degradation maintenance and inaccurate planning, achieving the goal of accurate and reliable life cycle data at a low cost.

The invention provides a photovoltaic power station operation management method and system based on data analysis, and belongs to the technical field of operation management, and the method specifically comprises the steps: carrying out the determination of an effective cleaning treatment period in cleaning treatment periods according to the deviation condition of a power generation waveform, according to the analysis result of the historical power generation data under different effective cleaning processing periods, determining the change condition of the historical power generation amount of the photovoltaic power station under different attention illumination intensities, determining a reference cleaning processing period under different attention illumination intensities based on the change condition, and determining the power generation amount of the photovoltaic power station according to the prediction result of the weather data. The time period distribution data of different attention illumination intensities in the future preset time period is determined, and the cleaning treatment period of the photovoltaic module of the photovoltaic power station is determined in combination with the reference cleaning treatment period under the different attention illumination intensities, so that the power generation efficiency of the photovoltaic power station is improved.

Various embodiments generally relate to a memory system and an operating method thereof. According to an embodiment of the present disclosure, the memory system sets a status check memory block for a first memory die included in a plurality of memory dies, the status check memory block being used to check the status of data stored in a memory block included in the first memory die, and the memory system manages a status check page and a programming memory block list for each of a plurality of predetermined temperature intervals, the status check page corresponding to the temperature interval and included in the status check memory block, and the programming memory block list indicating information about a specific memory block programmed when the temperature of the memory system falls within the temperature interval.

The invention discloses a constant-voltage and constant-current switching circuit, a switching method and an ultrasonic driving circuit, and the circuit is characterized in that the circuit comprises an analog switch, an AC-DC conversion module and an integral operation circuit module; according to different use products of the analog switch, the analog switch, the AC-to-DC module and the integral operation circuit module have different connection relations, and the number of the AC-to-DC module and the number of the integral operation circuit module are also different. According to the constant-voltage and constant-current switching circuit, the switching method and the ultrasonic driving circuit, the welding quality can be improved.

The present invention relates to a scroll compression mechanism and a scroll compressor having the same. The compression mechanism includes: a fixed scroll component and a movable scroll component and an oil supply channel for supplying lubricating oil from a lubricating oil source to the scroll compression mechanism. The compression mechanism also includes a regulating valve and a fluid pressure channel. The regulating valve includes a movable valve body. The first end of the fluid pressure channel is fluidly connected to a first pressure source to apply a first pressure to a first side end of the movable valve body. The second end of the fluid pressure channel is fluidly connected to a second pressure source to apply a second pressure to a second side end of the movable valve body, so that the movable valve body can selectively move toward a first direction or an opposite second direction to reduce or increase the flow cross-sectional area of ​​the oil supply channel based on a pressure difference. The scroll compression mechanism of the present invention and the scroll compressor having the same can dynamically adjust the oil supply amount and the oil circulation rate according to the working conditions, while ensuring the working reliability of the compressor and the working performance of the system to which the compressor is applied.

The invention discloses a TSV solid-phase hole filling interconnection method and structure, and relates to the technical field of semiconductor packaging. The TSV solid-phase hole-filling interconnection method comprises the steps of S1, silicon through hole etching and deposition, S2, copper column insertion and fixation, S3, surface treatment and interconnection construction and S4, electrical testing and process feedback, a complex electroplating production line is abandoned, the through holes are filled through plastic deformation of the solid copper columns, the inherent hole and seam problems of an electroplating method are avoided, and the TSV solid-phase hole-filling interconnection method is suitable for large-scale production. The high-purity solid copper columns are high in mechanical strength and are tightly and mechanically interlocked with the inner walls of the through holes through plastic deformation, and the anti-fatigue capacity of the interconnection structure under the thermal cycle load is improved by combining the insulating layer and the barrier layer, so that reliable vertical interconnection is obtained, thermal expansion coefficient mismatch of copper and silicon is effectively avoided, and the reliability of the interconnection structure is improved. Stress is generated on the interface in the electroplating process and the subsequent thermal cycle.

The invention discloses a credit survey report generation method based on an improved prompt chain. The method comprises the following steps: firstly, decomposing a plurality of chapter writing tasks with specific rules and corresponding material extraction tasks according to an instruction; then, intelligently judging whether an available material refining text exists in a second database by querying state identifiers (a state I, a state II and a state III): directly binding and using existing (state I) or doubted (state III) materials, and calling a large language model to generate and update the database in real time for missing (state II) materials; and finally, fusing the refined text of each material with the chapter rule to form a cue word, generating the content of each chapter by using the large language model again, and integrating into a complete credit survey report. According to the method, through dynamic material management and multi-round prompt optimization, the accuracy and efficiency of report generation are remarkably improved.

The invention discloses a parameter calibration device and method, a storage device and an ultrasonic drive circuit, and the device comprises a sampling module, an AC-DC amplification module, a filtering module and an ADC chip which are connected in sequence, and also comprises a standard resistor and an oscilloscope. Wherein the sampling module comprises a voltage sampling capacitor C1, a voltage dividing capacitor C4, a voltage signal transformer T1, a current signal transformer T2 and a resistor R9; the voltage sampling capacitor C1 and the voltage dividing capacitor C4 are connected in series, and a wiring terminal d1 and a wiring terminal d2 are arranged at two ends of a series branch of the voltage sampling capacitor C1 and the voltage dividing capacitor C4; the voltage signal transformer T1 is connected in parallel with the voltage sampling capacitor C1; the current signal transformer T2 and the resistor R9 are connected in parallel; the resistor R9 is connected with the wiring terminal d2; during calibration, two ends of the standard resistor are respectively connected with the wiring terminal d1 and the wiring terminal d2. When the current is calibrated, the oscilloscope is connected with the circuit of the ultrasonic transducer to be calibrated. According to the invention, the welding quality can be improved.

The utility model discloses a bus wiring terminal with stable wiring, which relates to the technical field of electrical equipment and comprises a protective shell, and a bus terminal and a sub-line terminal are respectively arranged at the left end and the right end of the inner side of the protective shell; according to the utility model, through the arrangement of the abutting protection sheet, the limiting semicircular sheets, the extrusion fixing mechanism, the pushing mechanism and the like, during plugging, the sub-line terminal is inserted into the protection shell, the extrusion fixing mechanism is utilized to control the two clamping plates and the protection base plate to extrude the sub-line terminal, and the position change of the two limiting semicircular sheets prevents the sub-line terminal from escaping from the right side; the push mechanism is used for pushing the bus terminal to move rightwards to complete plugging with the sub-line terminal, so that the connection between the bus terminal and the sub-line terminal is stable, the problem of connection looseness caused by a traditional screw fixing mode can be avoided, the problem of looseness of the connecting end is effectively prevented, and the service life of the bus terminal is prolonged. Unreliable or invalid electric connection caused by separation is avoided, normal work of electrical equipment is guaranteed, and potential safety hazards are avoided.

The present invention relates to the technical field of electrical connectors, and specifically discloses a connector, including a connector and a wiring assembly, wherein the connector is provided with a mounting groove, and the wiring assembly includes a wiring housing, a spring sheet and a current bar, wherein the spring sheet and the current bar are installed in the wiring housing, and the wiring housing is inserted in the mounting groove; the current bar is an integrated structure, and one end of the current bar can pass through the mounting groove to connect to a first wire on one side of the connector; the other end of the current bar and the spring sheet are connected to a second wire on the other side of the connector. The first wire and the second wire of the present invention can be electrically connected through a single current bar, the flexible separation point is eliminated, the contact pairs are reduced, the unreliable connection or falling-off phenomenon caused by the plug-in connection between the female end and the male end is avoided, and the connection reliability is improved; compared with the separate current bar of the plug-in connector, the contact resistance during the connection process is effectively reduced, the temperature rise during the current flow process is reduced, and the service life of the connector is extended.

The invention relates to the technical field of photovoltaic, in particular to a photovoltaic module, a preparation method thereof and manufacturing equipment of the photovoltaic module, the photovoltaic module comprises a back contact battery piece, an insulating strip, a conductive piece and an electric connecting piece, the back contact battery piece comprises a first surface, and the first surface is provided with a fine grid extending along a first direction; the insulating strips are arranged on the first surface at intervals in the first direction, the insulating strips cover part of structures of the fine grids, at least part of structures of the conductive pieces are located in gaps between the adjacent insulating strips, the conductive pieces are electrically connected with the fine grids, and the electric connecting pieces comprise first connecting parts and second connecting parts connected to the two ends of the first connecting parts in the first direction. The two second connecting parts are in lap joint with the two adjacent insulating strips respectively, and the first connecting parts are electrically connected with the conductive pieces. According to the design, the quality and reliability of the photovoltaic module are improved, the preparation difficulty of the photovoltaic module is reduced, and the preparation efficiency of the photovoltaic module is improved.

This invention provides a hybrid bonding structure and bonding method based on an interlocking structure. The hybrid bonding structure includes: a first chip to be bonded, having a silicon oxide layer and a first connector protruding from the silicon oxide layer; and a second chip to be bonded, having a polyimide layer, a recess within the polyimide layer, and a second connector at the bottom of the recess. The surface of the second connector is provided with a first adhesive layer. The materials of the first and second connectors include copper and / or aluminum. The first and second chips to be bonded are configured such that: before bonding, the height difference of the first connector protruding from the oxide layer is greater than the height difference between the top surface of the first adhesive layer and the top surface of the silicon oxide layer; after bonding, the silicon oxide layer and the polyimide layer are connected, and the first connector extends into the recess and is connected to the second connector using the first adhesive layer, thus forming an interlocking structure. This invention is used to optimize the performance of the hybrid bonding process and bonding structure.

The invention discloses a forklift pallet fork frame device and a using method thereof, the device comprises a portal frame, a telescopic cylinder, a sliding frame and a pallet fork, one end of the telescopic cylinder is connected with the portal frame, the other end of the telescopic cylinder is connected with the sliding frame, the sliding frame is connected with the portal frame, one end of the sliding frame is connected with the pallet fork, and the other end of the sliding frame is connected with a fixed frame. The distance between the adjacent pallet forks can be adjusted through the arrangement of the telescopic cylinders, the sliding frames and the corresponding gears, only the telescopic cylinders are needed to serve as power sources, at least two telescopic cylinders can be arranged, and the number of needed matched hydraulic pipelines is reduced; through the arrangement of the gear and the rack, the friction force generated when the pallet fork moves can be reduced, and the durability is improved; and meanwhile, the problems of reliability reduction, maintenance cost increase and the like caused by the responsible structure can be avoided.

The invention provides a display module and a display screen, and relates to the field of display. The display module comprises an upper polaroid, a color film panel, a display circuit panel and a lower polaroid which are arranged in a stacked mode. On the side, connected with the electric connecting piece, of the display circuit panel, the edge of the color film panel is inwards shrunk to the edge of the display circuit panel, and the edge of the upper polaroid is inwards shrunk to the edge of the color film panel; a first filler is contained between the edge of the color film panel and the edge of the display circuit panel, a second filler is contained between the edge of the upper polaroid and the edge of the first filler, and the color of the second filler is the same as that of the display module under the condition that the display module is not lightened. According to the technical scheme, the display screen without frames on the four sides can be achieved, the display performance of the display screen is improved, and the appearance is optimized.

The invention discloses an active phased-array antenna electrical performance amplitude-phase adjustment amount calculation method based on interval refinement, and the method comprises the steps: building an antenna pattern interval function model, and carrying out the array surface morphology measurement; calculating an antenna pattern interval function, and establishing a compensated antenna pattern interval function; establishing a difference expression between a compensated directional diagram function and an ideal directional diagram function, dispersing an antenna observation angle, and constructing a dispersed compensation excitation current matrix and an ideal excitation current matrix; solving an excitation current amplitude-phase interval function after compensation of each array element, and converting the excitation current amplitude-phase interval function into a function about the position of the array element; subdividing the array element position interval vector to obtain a fine function of the compensated excitation current; and obtaining the refined excitation current amplitude-phase adjustment interval quantity of each array element. According to the method, the adjustment amount of the amplitude phase of the excitation current of the antenna is calculated, the interval amplification effect is improved based on fineness, the problem that the adjustment amount is not accurate enough or unreliable is avoided, and the electrical performance of the antenna is guaranteed.

The utility model discloses a reinforced anti-riot and anti-collision type anti-collision car stopping roadblock which comprises a pre-buried box, a turnover table and a turnover jacking assembly. The overturning table and the overturning jacking assembly are both arranged in the pre-buried box. When the overturning jacking assembly is lifted upwards, the overturning table is jacked to the upper portion of the pre-buried box to achieve the vehicle intercepting effect. When the overturning jacking assembly descends, the overturning table is folded into the pre-buried box. The overturning jacking assembly comprises a set of jacking oil cylinders and a set of anti-collision tensile arms, and the tops of the jacking oil cylinders are supported in the middle of the overturning table and used for achieving jacking and descending of the overturning table; one end of the anti-collision tensile arm is coupled with the embedded box, and the other end of the anti-collision tensile arm is coupled with the overturning table. According to the car stopping roadblock machine, the anti-collision tensile arms are additionally arranged during collision prevention, and the situation that the arc-shaped overturning table is forcefully lifted up due to too large collision force can be prevented.