170results about How to "Avoid accidents" patented technology

The invention relates to the technical field of cable working wells, in particular to a cable working well state monitoring method and system. The cable working well state monitoring method comprises the steps that a monitoring device is established in each cable working well, and each monitoring device comprises an electric power Internet of Things gateway, a monitoring device body and an intelligent well lid; setting one of the power Internet of Things gateways as a master gateway, setting the other power Internet of Things gateways as slave gateways, establishing communication between the master gateway and all the slave gateways, and establishing communication between the master gateway and all the intelligent well lids; and establishing communication among the main gateway, the property management platform and the operation and maintenance terminal, and monitoring all state information through the property management platform. According to the cable working well state monitoring method, the operation state and trend of the cable joint can be effectively evaluated, the workload of cable operation maintenance personnel is reduced, cable accidents are reduced, the risk that a grounding wire, a cross interconnection box, a grounding box and the like are stolen is reduced, and the quality of a power cable and reliable operation of a power system are guaranteed.

This invention discloses a driver state monitoring and safety early warning method based on millimeter-wave radar, comprising: acquiring driver physiological micro-motion signals and driver macro-behavioral signals respectively through millimeter-wave radar to obtain driving environment information in real time; denoising the driver physiological micro-motion signals and extracting features to obtain driver physiological feature signals; constructing a time-frequency spectrum using driver macro-behavioral signals; determining the driver physiological arousal index and driver emotional state risk value based on the physiological feature signals; obtaining the driver dynamic behavior risk value based on the time-frequency spectrum; calculating an environmental complexity index based on driving environment information; constructing a driver state risk field model based on the driver physiological arousal index, driver emotional state risk value, and driver dynamic behavior risk value; calculating the driver state risk value using the driver state risk field model and environmental complexity index; and providing graded early warning based on the driver state risk value.

The utility model relates to a cable production turnover frame. The cable production turnover frame comprises a frame body provided with a wheel assembly, two sliding seats arranged on the frame body in a left-right opposite mode and matched with the frame body through sliding rail structures extending left and right, and U-shaped tables arranged on the two sliding seats respectively. And a bolt assembly is arranged on the sliding seat, and a bolt body in the bolt assembly can be selectively matched with and separated from the upper part of the frame body in a crimping contact manner. And a screw rod which vertically extends upwards and at least one pair of guide columns are arranged at the upper part of the sliding seat. And the cross arms on the two U-shaped tables extend oppositely. The end face of the cross arm is a cambered surface and is provided with an elastic layer. And a vertical through hole structure correspondingly matched with the screw rod and the guide column respectively is arranged on the body of the U-shaped table. And a nut piece corresponding to the lower part of the body of the U-shaped table is arranged on the screw rod. According to the utility model, the problem that the cable roller wound with the cable is easy to incline in the turnover process can be solved.

The utility model discloses a combustion control device for an RTO (Regenerative Thermal Oxidation) incinerator, which relates to the technical field of combustion control of incinerators and comprises a bracket, and a control valve II is fixedly mounted on the outer surface of a transmission pipe; an adjusting mechanism used for controlling the combustion size is arranged between the controller and the conveying pipe and comprises a fuel gas inlet fixedly formed in the outer surface of the controller. According to the combustion control device for the RTO incinerator, external air is conveyed through the air inlet, the air circulates in the conveying pipe, a first control valve is installed on the side, close to the air inlet, of the conveying pipe, the circulating air is controlled through the first control valve, and the air is conveyed into a combustion-supporting air pipeline through the conveying pipe; the sealing disc is installed at the connecting position of the pipeline, so that the sealing performance of the pipeline is improved, the gas leakage phenomenon is avoided, the situation that the gas circulation size cannot be adjusted when the first control valve is damaged is avoided through the second control valve, the guarantee for equipment is improved, and the safety of the pipeline is guaranteed.

The utility model provides a segmented cutting forming tool of tricholoma matsutake. The segmented cutting forming tool of tricholoma matsutake includes: the workbench that sets up the inclined groove, the fixed plate is fixedly installed in the inclined groove, the cutting frame is hinged on the fixed plate, and the bottom rotation of cutting frame is installed with the winding shaft, the protective cover is fixedly installed on the cutting frame and is connected with the winding shaft rotation, the torsional spring is fixedly installed in the protective cover and is connected with the winding shaft, the cutting line one end is coiled on the winding shaft, the movable plate is slidably installed on the cutting frame, and the movable plate is fixedly connected with the other end of cutting line. The segmented cutting forming tool of tricholoma matsutake has the advantages that the efficiency of segmented cutting of tricholoma matsutake can be improved, and the production needs are met.

The utility model discloses a drive module includes two cylinders of symmetrical setting at cylinder cover both sides, two cylinders can guarantee that cylinder cover stress is even, and the lift movement of cylinder cover is driven through cylinder, and the opening and closing of cylinder cover can be realized without manual force, and the labor intensity is reduced, the stability of the lift process of cylinder cover can be guaranteed through the cooperation of the guide column and the guide sleeve of guide module, avoids the tilting or the collision of cylinder cover because of uneven stress and leads to the damage of equipment, the sealing module can guarantee that cylinder cover and knead cylinder body's sealing fit, prevents material leakage, and the adaptive adjustment module can dynamically adjust the lift speed of cylinder cover according to the pressure in knead cylinder body, when the pressure in knead cylinder body is too big, the lift speed of cylinder cover reduces, avoids the material splashing under high pressure working condition, the intelligent monitoring module can real -time monitoring equipment state, and early warning failure avoids the accident, and the quick cleaning module can carry out the automatic cleaning to the material of remaining in the inside of cylinder cover, reduces manual operation.

The invention discloses a power battery module for a new energy electric vehicle and a cooling control method of the power battery module. The plurality of battery cell fixing positions are respectively arranged on the battery cell lower pressing plate at equal intervals in an array manner along the transverse direction and the longitudinal direction; one end of each battery cell is arranged on the corresponding battery cell fixing position in a matched manner; the water channel mechanism is arranged in a hole between two adjacent rows of battery cells and is in close contact with the battery cells, and the water channel is distributed in an S shape among the plurality of battery cells; the two connecting ports are respectively arranged at the two ends of the water channel in a communicating manner; and the battery cell upper pressing plate is arranged at the tops of the plurality of battery cells in a matching manner. The plurality of battery cells are integrated together, and the temperature of the battery cells is adjusted through the water channel mechanism, so that the problem of non-uniform local heat dissipation of the battery module is solved. The invention further discloses a cooling control method for the power battery module of the new energy electric vehicle.

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

The present application belongs to the technical field of port safety monitoring, and specifically relates to a method and system for identifying personnel approaching a cable launching area in a port, a terminal and a storage medium, which comprises selecting a fixed cable column of a port berth as a physical reference, using a high-resolution network camera to collect panoramic images of the port berth, using a pre-trained YOLOv8 deep learning model for multi-target segmentation, and performing secondary focusing identification to quickly and accurately identify personnel, cables, cable columns and ship outline targets, and by obtaining dynamic factors such as cable tension and ship docking angle, the reference radius of the dangerous area is corrected by combining the corresponding calculation formula, and a dynamic dangerous area polygon is generated, fully considering the dynamic changes of the port operation environment, which can update the dangerous area in real time, making the division of the dangerous area more in line with the actual situation, avoiding misjudgment and missed judgment due to the fixed dangerous area, and improving the accuracy and effectiveness of safety management.

The invention discloses a quantitative analysis method and system for overheat fault gas of an on-load tap-changer contact. The method comprises the following steps: constructing a multi-physical field coupling mathematical model of an on-load tap-changer, and defining contact resistance of a contact surface; solving the multi-physics field coupling model to obtain time domain and space domain temperature distribution of the surface of the on-load tap-changer contact, and determining the highest temperature and the volume of an overheat region; calculating the local gas production rate of each fault characteristic gas; carrying out integral calculation on local gas production rates of all fault characteristic gases in the hot area volume to obtain theoretical equilibrium concentration of each fault characteristic gas in oil, and constructing a mapping relation between an overheating parameter formed by the contact resistance and the highest temperature of the contact surface and the theoretical equilibrium concentration; the method aims at solving the problems that a traditional analysis method for the gas dissolved in the oil depends on experience criteria and is high in hysteresis quality, breaks through the bottleneck that the whole process of electricity-heat-fluidization cannot be simulated from the mechanism level, and achieves the crossing from qualitative diagnosis to quantitative prediction.

The invention relates to the technical field of electric power inspection and maintenance robot control, and discloses a power transmission line crawling robot lifting self-adaptive shake suppression control method and system. The method comprises the following steps: acquiring three-axis acceleration and three-axis angular velocity data of a robot platform, calculating a yaw angle and an angular velocity of the robot platform relative to a vertical balance position, and constructing an evaluation index representing the shaking strength of the platform; according to the shake strength evaluation index, driving parameters of a lifting motor are dynamically adjusted through a nonlinear mapping relation; and the swing period and phase of the robot platform are monitored, and when the platform swings to a specific phase point, an instantaneous driving pulse is applied to a lifting motor to consume swing energy. By means of the method, the maximum swing angle of the robot platform can be reduced by 60% or above, the static time after the robot platform reaches the target position is shortened by 70% or above, and the working efficiency is remarkably improved.

The invention provides a green, environment-friendly, efficient and mild detergent and a preparation method and application thereof, and belongs to the technical field of detergents. Comprising the following raw materials in parts by weight: 10 to 20 parts of a mild surfactant, 5 to 8 parts of an auxiliary surfactant composition, 1 to 2 parts of a plant extract, 0.5 to 1 part of vitamin C, 0.1 to 0.3 part of vitamin E, 0.2 to 0.5 part of vitamin B5, 0.005 to 0.007 part of essence, 0.1 to 0.3 part of EDTA (Ethylene Diamine Tetraacetic Acid) disodium and 60 to 80 parts of deionized water. The prepared green, environment-friendly, efficient and mild detergent is good in foaming effect, stable in chemical property, mild, low in toxicity, good in washing effect and good in degradability, due to addition of the auxiliaries, the sense of the detergent is smoother, the fragrance of the detergent is more loved, and the detergent has wide application prospects.

The utility model belongs to building construction technical field provides a kind of tooling protection fence of overturning mesh, including inner stand, outer stand, inner guardrail, outer guardrail, rotating shaft, adjusting screw rod;Inner stand is slidably sleeved in the inner side of outer stand, adjusting through-hole is equipped on outer stand side wall, adjusting screw hole is equipped on inner stand side wall;Outer stand side wall is equipped with outer connecting plate, outer guardrail is connected with outer connecting plate by bolt, inner guardrail top end is hinged with outer guardrail top end by rotating shaft, inner connecting plate is equipped on inner stand side wall.The protection fence, when the protection height requirement is lower, can be directly used, when the protection height requirement is higher, by the inner guardrail is turned up to vertical state to then, inner stand is extracted upwards, and inner stand is connected with inner guardrail by bolt, inner guardrail can be fixed.I.e. by the configuration of two guardrails, and two guardrails are hinged by rotating shaft, can adapt to the use scene of different protection height requirement.

This application discloses a device for treating blockages in cooling wall water pipes. The device includes: a first tee pipe having a fourth, fifth, and sixth pipe, wherein the fourth pipe is connected to the flow channel of the first pipe, the fifth pipe is connected to the flow channel of the third pipe, and the sixth pipe is located between the fourth and fifth pipes; a second tee pipe having a seventh, eighth, and ninth pipe, wherein the seventh pipe is connected to the sixth pipe, the ninth pipe is connected to the second pipe, and the ninth pipe is located between the seventh and eighth pipes; a first shut-off valve located on the eighth pipe for controlling the on / off state of the eighth pipe; and a second shut-off valve located on the ninth pipe for controlling the on / off state of the ninth pipe.

The application relates to the technical field of building construction, in particular to a quick-mounting type hanging rope fixing device and a use method thereof in building structure demolition, which comprises a hanging rope, a fixing seat, a rotating part, a moving part, an extension part and a blocking column, the lower end of the hanging rope is horizontally provided with a horizontal hole for placing the blocking column, the upper end of the fixing seat is fixedly connected with the bottom of the hanging rope, the rotating part comprises a rotating plate and a first motor, a first rotating shaft is fixedly connected with the output shaft of the first motor, the rotating plate is arranged on the fixing seat, the rotating plate is key-connected with the first rotating shaft, the moving part comprises a bottom plate and a moving plate which are horizontally arranged, the moving plate is slidingly connected with the bottom plate, a second motor for driving the moving plate to slide is fixedly connected with the bottom plate, the extension part comprises an electric telescopic rod which is vertically arranged, the upper end of the electric telescopic rod is fixedly connected with the moving plate, the lower end of the electric telescopic rod is fixedly connected with a baffle, and the blocking column is vertically arranged and connected with the baffle. The scheme can automatically and quickly fix the hanging rope with the floor, improves the demolition progress and avoids accidents.

The utility model relates to interface technical field especially relates to an electric vehicle battery quick change interface of preventing mistaken insertion, including first interface, protective cover, second interface and connecting wire, hinged type is provided with protective cover on first interface, be provided with connecting wire on second interface, still include plug -in block, mounting seat, guide rod and protective shell, be provided with plug -in block on first interface, be provided with protective shell on second interface, be provided with mounting seat on second interface, two guide rods are fixedly connected on mounting seat. Push into second interface in first interface, plug -in block moves extruding the block piece immediately, the block piece drives two slide plates and the connecting plate to move extruding the elastic part, when the opening on the block piece and plug -in block aligns, the elastic part follows the rebound and drives the block piece to move upwards and locks into plug -in block, in this way lock first interface and second interface, prevent the interface from loosening or falling off due to accidental touch or other external force, guarantee the security and stability of charging process.

The application relates to the field of oil and gas wellhead equipment, and discloses a 30000 PSI superhigh-pressure gas production tree, which comprises a main body, the main body is used for mounting a tubing hanger, the tubing hanger is arranged in the main body, the tubing hanger is used for suspending a tubing, a pressure test channel, the pressure test channel is arranged in the main body, the pressure test channel is used for applying a test pressure to the outside of a first sealing sleeve and a second sealing sleeve, the first sealing sleeve and the second sealing sleeve are arranged between the main body and the tubing hanger, and the first sealing sleeve and the second sealing sleeve are used for sealing the gap between the main body and the tubing hanger; through the arrangement of the first sealing sleeve and the second sealing sleeve, the superhigh-pressure working condition still has good sealing effect, and the greater the pressure is, the better the sealing effect is; through the arrangement of a top screw and a limiting component, the tubing hanger can be doubly limited, so that the sudden pressure impact can be coped with, and accidents can be prevented.

The invention discloses grinding equipment for machining water pump accessories, and relates to the field of grinding equipment, the grinding equipment comprises a grinding main machine, a grinding cover and a driving motor are mounted on the grinding main machine, a grinding wheel is rotatably mounted in the grinding cover, the grinding wheel is in transmission connection with the driving motor, and an operation table is mounted on the grinding cover. It needs to be explained that in the embodiment of the invention, the operation table is closed through the inner protective cover and the outer protective cover, splashed dust and impurities are shielded, meanwhile, during grinding, one hand moves an arc-shaped locking plate downwards, then the other hand moves the accessory, the accessory is ground by a grinding wheel, the accessory rolls on a plurality of balls, and therefore the accessory can be ground conveniently. And the problem that the two hands of a worker need to grab accessories for machining can be effectively solved, so that the problem that the hands of the worker are prone to being injured due to contact with a grinding wheel when the worker grinds the accessories can be effectively solved, and potential safety hazards are effectively eliminated.

The invention belongs to the technical field of oil and gas field development, and particularly relates to a hydraulic sand blasting perforation fracturing production method for a horizontal well. According to the method, the production process of hydraulic sand blasting perforation fracturing of the horizontal well is completed through the four steps of optimization selection of the coiled tubing, optimization of the spray gun, optimization of operation parameters and fracturing. According to the method, the coiled tubing, the spray gun and the construction parameters involved in the hydraulic sand blasting perforation fracturing technology of the coiled tubing horizontal well are optimized, so that the coiled tubing, the spray gun and the construction parameters are well matched with the actual operation working conditions, and accidents in the construction process are effectively avoided; and a relatively good fracturing construction effect is achieved.

The utility model provides a dry quenching poisonous and harmful gas discharge system which comprises a dry quenching furnace, a belt vestibule, a belt conveyor assembled in the belt vestibule, an interlocking signal protection device and a central control room, wherein a coke discharge port is formed in the bottom of the dry quenching furnace, and a flat valve is arranged in the coke discharge port; the lower part of the coke discharge port is connected with an electromagnetic vibration feeder, a discharge port of the electromagnetic vibration feeder is connected with a feed port of a rotary sealing valve, and a discharge port of the rotary sealing valve is connected with a coke discharge chute; linkage protection is added when running signals of the environment dust removal fan of the coke dry quenching device are lost, the axial flow fan is started to replace gas in the vestibule of the belt conveyor, the concentration of poisonous and harmful gas is reduced, the audible and visual alarm reminds people to evacuate in time through voice, personal injury accidents are avoided, the safety of workers is protected, operation is convenient, and the working efficiency is improved. The maintenance cost is low, and the applicability is wide.

This invention relates to the field of fault early warning technology, and provides a method and system for early warning of faults in large oil-filled equipment, comprising: Step 1, collecting acoustic fingerprint data throughout the entire lifecycle of the large oil-filled equipment and constructing an acoustic fingerprint sample set; Step 2, preprocessing the acoustic fingerprint sample set, extracting acoustic fingerprint feature parameters, and establishing a standardized acoustic fingerprint database; Step 3, constructing a multi-channel deep learning acoustic fingerprint recognition model and a discharge severity assessment model based on deep learning; Step 4, based on the output of the trained acoustic fingerprint recognition model and combined with a preset multi-level early warning threshold system, performing real-time assessment of the operating status of the large oil-filled equipment, and generating corresponding early warning information when the assessment result meets the early warning triggering conditions; Step 5, pushing the early warning information to the operation and maintenance terminal, and automatically generating operation and maintenance suggestions based on the defect type and severity. This invention can effectively provide early warning of faults in large oil-filled equipment.

The application discloses a kind of overheat fault gas quantitative analysis method and system of on-load tap-changer contact, the method of the present application includes constructing the multi-physics field coupling mathematical model of on-load tap-changer, define contact surface contact resistance;Solving multi-physics field coupling model obtains the time domain and spatial temperature distribution of on-load tap-changer contact surface, determine the highest temperature and the volume of overheated area;Calculate the local gas production rate of each fault characteristic gas;The local gas production rate of all fault characteristic gases in the volume of hot area is integrated to obtain the theoretical equilibrium concentration of each fault characteristic gas in oil, construct the mapping relationship between the overheating parameters of contact surface contact resistance and highest temperature and theoretical equilibrium concentration.The present application aims to solve the problem that the traditional oil dissolved gas analysis method relies on empirical criterion and has high hysteresis, break through the bottleneck that cannot simulate the whole process of "electric-thermal-flow-chemical" from mechanism level, realize the leap from qualitative diagnosis to quantitative prediction.

The invention provides a safety protection mechanism for construction of a glass curtain wall of a super high-rise building, belongs to the technical field of safety protection, and solves the problem that a movable balancing weight connected with an operator is arranged in a hanging basket to balance the hanging basket, although the hanging basket can be prevented from shaking due to walking of the operator, the safety of the operator is ensured. However, the problem that the hanging basket shakes due to wind blowing cannot be prevented. The safety protection mechanism for super high-rise building glass curtain wall construction comprises a hanging basket body and a winch fixedly arranged on the roof of a high-rise building, pull ropes are fixedly arranged at the four corners of the top end of the hanging basket body, a steel wire rope in the winch is fixedly connected with the four pull ropes through a connecting structure, and a moving assembly is arranged at the bottom end of the hanging basket body; a connecting and fixing assembly is arranged at one end of the moving assembly and comprises two fixing plates, two connecting plates are fixedly arranged on one sides of the fixing plates, soft cushions are fixedly arranged at one ends of the connecting plates, and suction cups are fixedly arranged at one ends of the connecting plates. The device has the advantages of being high in stability and not affected by wind power during high-altitude operation.

The application provides a wind turbine jump speed control method, device, equipment and storage medium, and belongs to the field of wind power generation. The method is as follows: a plurality of first generator speed values and first generator torque values are obtained, and a plurality of first generator power values are calculated according to the obtained data; the plurality of first generator speed values, the first generator torque values and the first generator power values are respectively input into a filter to obtain a plurality of second generator speed values, second generator torque values and second generator power values; whether the wind turbine rotor rotation frequency range coincides with the first-order natural frequency of the flexible tower is judged according to the plurality of second generator speed values, the second generator torque values and the second generator power values; if yes, a target torque value, a minimum torque limit value and a maximum torque limit value are determined according to the first-order natural frequency of the flexible tower; and the generator speed is adjusted according to the generator speed isolation interval. The application can avoid resonance and improve the service life of the wind turbine.

The utility model discloses a kind of explosion-proof fan, including the casing of three-layer composite explosion-proof resin material and wind wheel, wherein outer layer carbon nanotube PEEK composite material effectively leads out static electricity, middle aluminium hydroxide flame-retardant layer prevents flame spread, inner layer ultra-high molecular weight polyethylene reduces friction spark risk.Electrostatic belt can effectively eliminate static electricity accumulation in transmission process, avoid static spark, improve explosion-proof safety.Fan is equipped with rotary electrostatic brush and ground copper wire to eliminate static electricity, and fire barrier is configured at air inlet to prevent flame propagation.Wind wheel blade is provided with tungsten-containing wear-resistant coating and zircon ceramic wear-resistant strip to avoid friction spark.Explosion-proof motor is built-in temperature sensor and vibration sensor, and stator winding adopts arc-resistant enameled wire.The utility model solves the problem of heavy weight and single protection of traditional fan through multiple explosion-proof design, with the characteristics of lightweight, superior explosion-proof performance, stable and reliable operation, especially suitable for flammable and explosive places such as petroleum and chemical industry.

The utility model provides a board batch fast turnover device belongs to board processing technical field. The device includes base, bearing frame, clamping mechanism and a plurality of spring buffers, the base is located device the lowest, is used for fixed bearing frame and spring buffer, bearing frame fixed mounting in base top, is used for rotating installation clamping mechanism, clamping mechanism is by two groups of U type frame, and each group U type frame includes two identical U type frame, and the opening of two U type frames of same group is opposite and sets up and two U type frames two ends mutually adhere, and two groups of U type frame one end is rotatably connected with bearing frame, and the other end is fixedly connected through fixed link, is used for clamping board and is with bearing frame cooperation carries out the turnover to board. Spring buffer fixed mounting is in base top left and right sides, when two groups of U type frame overturns and falls, and spring buffer top end is contacted with two groups of U type frame, and provides the buffer for clamping mechanism.

The present application relates to the technical field of scraper conveyor, and particularly relates to a chain breakage fault pre-judgment device and method of a scraper conveyor and the scraper conveyor, the device comprising: a controller, a first plug plate and a first magnetic sensor fixed to the first plug plate; a conveying groove of the scraper conveyor is provided with a first opening, the first plug plate is inserted into the first opening and located at a side of the chain close to a chain channel, and the first magnetic sensor is fixed to the first plug plate and opposite to one side of the chain; in the process of running of the chain of the scraper conveyor, the first magnetic sensor collects a first magnetic characteristic signal of a chain link passing through the first magnetic sensor; the controller is connected with the first magnetic sensor, the damage state of the chain link is analyzed according to the first magnetic characteristic signal, and whether the chain link is a chain breakage fault risk point is pre-judged based on the damage state. In this way, the present application pre-judges the chain damage of the scraper conveyor in advance, so as to realize the early warning and preventive maintenance of the chain breakage fault, and the operation reliability and safety of the scraper conveyor are improved.

The present application relates to cable equipment technical field, especially a kind of protection device for cable winding with convenient transportation, including, bearing assembly, including two support frames symmetrically arranged, the placing groove being opened in the end surface of support frame and the hook groove being opened in the other end surface of support frame;And, winding assembly, including shaft body, symmetrically arranged in the both ends of shaft body and can be detachably connected with the placing groove of the installation disc, the end surface of installation disc is also provided with the hook that can be matched with the hook groove;The present application can be easily adjusted to the distance of two groups of support frames, so that the protection device can be adapted to use with a variety of sizes of cable drum, ensure that the both ends of protection device are stably supported to the both ends of cable drum, and the both ends of cable drum are protected and supported by protection device, so that the surface of both ends of cable drum is damaged and the cable drum is rolled on the ground, to prevent accidents from happening.

The invention discloses power equipment with a high heat dissipation and air guide structure, and belongs to the technical field of fund transaction terminal equipment, the power equipment comprises a power equipment box body, an outer fan box and a transformer, the front surface of the power equipment box body is connected with a power equipment box door, and a plurality of air guide bends are arranged in the power equipment box body, so that cold air is dispersed into the power equipment box body; an exhaust dustproof lap joint is installed on one side of the power equipment box body to prevent dust, rainwater and other sundries from entering the power equipment box body, a water flowing notch is formed in the back face of the power equipment box body, a transformer is arranged in the power equipment box body, and the transformer is movably installed on the upper surface of a lower connecting plate through a transformer nut. The lower connecting plate is connected to the inner wall of the power equipment box body, the outer fan box is installed on the side face of the power equipment box body, and a refrigeration fan structure is installed in the outer fan box, so that cold air entering the power equipment box body becomes cold, and a better heat dissipation effect is achieved.

This invention relates to the technical fields of tunnel safety control, intelligent transportation, vehicle-road cooperation, and tunnel safety early warning. Specifically, it relates to a tunnel active safety control system and method based on vehicle-road cooperation. Key technical points include: a multi-source data fusion module: integrating data from roadside equipment (including radar, cameras, and fiber optic sensors) and vehicle-mounted terminals to construct a four-dimensional perception network of people, vehicles, roads, and the environment; a dynamic risk assessment module: quantifying the probability of an accident (P) and collision energy loss (E) based on an equivalent traffic conflict number (ECN) model to achieve risk-level early warning; and a vehicle-road cooperative intervention module: triggering early warning and control strategies from both the roadside and vehicle perspectives through two-way communication between roadside smart guidance signs, information boards, and vehicle-mounted terminals. This invention improves the ability to respond to tunnel risks.