104results about How to "Ensure safe passage" patented technology

The invention relates to a crossing pre-induction signal priority control method used for a rapid bus. The method is applied to a bus rapid transit (BRT) system, multiple detectors are arranged at a crossing setting position, arrival time of a bus is predetermined in advance, length of a corresponding signal phase of a crossing is adjusted in proportion, and a signal lamp of the crossing is controlled. According to the invention, multiple detectors are arranged before the crossing under the premise of a bus rapid transit mode, the arrival time of the bus is predetermined in advance, the length of the corresponding signal phase is adjusted in proportion according to the actual passing priority requirement, public vehicles and pedestrian are guaranteed to pass safely, the bus can preferentially pass by fully utilizing a green light signal of the crossing, and operating efficiency of the bus is improved.

The invention relates to a bridge anti-collision warning system which is mainly composed of an warning information processing center, upstream and downstream monitoring sites, and a piece of water level monitoring equipment. The warning information processing center comprises an AIS receiver, a data acquisition and processing server, an anti-collision warning information processing computer, a video monitoring computer, a data recording server, and a VHF radio station. The upstream and downstream monitoring sites are respectively arranged upstream and downstream of a bridge and in positions of the river bank which are 3-5km away from the bridge. Each monitoring site is provided with a monitoring camera and a cloud platform which can adjust the shooting angle. A target ship is identified by shooting ships with potential threat and dynamically tracking the geographical locations of the ships. The height of the ship is calculated after the background is removed. When the height of the ship reaches a warning height, secondary measurement is carried out manually. When the ship is determined as a threat ship, calling is carried out immediately through a VHF radio station or the maritime sector is notified.

The invention relates to a bus priority passing method for a bus lane intersection. According to the method, collected traffic data are used for establishing an intersection simulation system, wherein the influence of social vehicles is also considered in the simulation system; in combination with a bus real-time database, the intersection arrival time of a bus sending a bus priority request is predicted; according to the intersection arrival time, the display time spans of red lights and green lights at a priority phase and a non-priority phase of the intersection are adjusted so as to control switching between different colors of signal lights. By means of the method, safe passing of crossing pedestrians and the social vehicles is guaranteed, and meanwhile buses can fully utilize a green light signal at the intersection for priority passing, so that the running efficiency of the buses is improved, and the travel time of passengers is shortened. As a result, the bus priority passing method can be widely applied to the field of public transportation management and control.

The invention provides a multifunctional fabricated hydraulic drive moveable trestle, relating to a hydraulic drive moveable trestle used for various excavation constructions carried out by various tunnel or cavity drilling and blasting methods. The trestle comprises a main trestle and approach trestles positioned on both ends of the main trestle, wherein, the main trestle comprises a transverse beam and trusses connected to both sides of the transverse beam, the upper and the lower ends of the trusses are respectively provided with upper chord members of the main trestle and lower chord members of the main trestle. The invention has the technical scheme that a steering wheel is installed on the front end of the main trestle, a driving wheel and a rear supporting device are installed on the rear end of the main trestle, and lifting mechanisms are arranged on the steering wheel and the driving wheel. Moveable tracks are installed on the lower chord members of the main trestle between the steering wheel and the rear supporting device; concrete slicking devices, fixing devices for inverted arch templates, front supporting devices and lengthwise moved idler pulleys for front support are installed on the moveable tracks, and drawing mechanisms are installed on the lower chord members of the main trestle on the left and the right sides of the trestle. The trestle is suitable for various excavation constructions of public roads, railroads, water diversion, flood discharge, anti-aircraft defense, and the like by the tunnel or cave drilling and blasting methods, and meets the requirements of simultaneous construction, namely the tunnel or cave excavation and the pouring of concrete for the bottom inverted arch.

The invention relates to a rotating arm type antifreezing fluid spraying device for two-lane coal trains, belongs to the technical field of mechanical design and control, and in particular relates to an antifreezing fluid spraying device capable of evenly spraying antifreezing fluid from a position close to a nozzle to five surfaces in carriages of the coal trains in short distance. The antifreezing fluid spraying device is characterized by consisting of a square upright post 1, a side attached fastening device, a drive reducing mechanism, a swing mechanism, an upper connecting plate 12, a lower connecting plate 13, a multi-azimuth nozzle steering mechanism and a control system; and the antifreezing fluid spraying device makes operators far away from the spraying field by utilizing remote control, reduces the labor intensity of the operators, improves the labor environment, saves the dosage of the antifreezing fluid, saves the cost, ensures the safety of human bodies and transportation, can automatically recognize the carriages and headstocks, begins spraying when the carriages enter a spraying area, stops spraying when the carriages leave the spraying area, does not spray the fluid when couple empty spaces between the carriages and the headstocks of locomotives pass, and really realizes the full automatic antifreezing fluid spraying of railroad coal trains.

The invention belongs to the field of sponge cities, and in particular to a road safety isolation fence for sponge city construction. The isolation fence comprises a guardrail frame vertically fixed on the ground, a handrail horizontally extending along the road is arranged above the handrail frame; a water storage tank is arranged in the railing frame; an L-shaped water inlet pipe extending to the bottom of the railing frame is arranged at the bottom of the water storage tank; a one-way valve is arranged in the L-shaped water inlet pipe, a movable rod extending in the axis direction of the water storage tank is arranged in the water storage tank, the lower end of the movable rod extends into the handrail frame and is in sliding connection with the handrail frame, and the upper end of themovable rod extends out of the water storage tank and is fixedly connected with a horizontally-arranged wing plate. The movable rods can be driven by the wing plates to move upwards, a driver can judge the approximate vehicle speed at the moment by observing the colors on the tubular reflecting plates, guarantee is provided for road safety, rainwater can be sucked into the water storage tank to bestored in a rainy day environment, and the concept of sponge city construction is met.

The invention discloses a water-soluble quenching medium for hot die steel. The water-soluble quenching medium is prepared by mixing polyalkylene glycol, polyvinyl pyrrolidone, rust inhibitor, bactericide, pH regulator, settling agent, defoaming agent and water uniformly in a ratio. The water-soluble quenching medium is low in production cost, non-flammable and environment-friendly. The water-soluble quenching medium replaces oil quenching media, and fully meets the quenching requirements of the hot die steel such as 4Cr5MoSiV1, 5CrMnMo and 5CrNiMo.

The invention discloses envelope calcium chloride and a preparation method thereof. The envelope calcium chloride is prepared from the following raw materials in parts by weight: 5-20 parts of hydrogenated palm oil, 5-20 parts of hydrogenated castor oil, 4-30 parts of silicon dioxide, 1-20 parts of fatty acid calcium and 60-85 parts of calcium chloride. The preparation method is characterized in that the envelope calcium chloride which can be taken as a feed additive is obtained by taking the hydrogenated palm oil, the hydrogenated castor oil, silicon dioxide and fatty acid calcium as envelope materials and taking the calcium chloride as a core material through a multiple-time pelletizing and enveloping technology. The envelope calcium chloride can make up the defects that the calcium chloride raw material easily absorbs water, and also can guarantee that calcium chloride safely passes through a rumen to smoothly reach the intestinal tract, so that the biological utilization rate of calcium chloride is greatly increased.

The invention discloses a road pavement pre-assembling construction structure. The road pavement pre-assembling construction structure comprises a pre-assembling conveying device, a picking pre-assembling device, a pre-assembling cement board, a horizontal adjustment plate and a horizontal measurement plate. According to the road pavement pre-assembling construction structure, a prefabricated concrete board is used for rapidly repairing and the structure is convenient to operate; temporary repairing can be carried out before complete repairing is carried out, so that safe passing of vehicles and pedestrians is ensured and potential safety hazards are reduced; meanwhile, the construction cost is reduced, a construction period is accelerated and influences, caused by construction, on the environment are reduced. The road pavement pre-assembling construction structure is suitable for popularization and application.

The invention belongs to the field of municipal construction, and in particular to an induction type blind sidewalk floor tile convenient for passing. The tile comprises a tile body, a lifting plate is connected to the inner side wall of the tile body in a sealed and sliding mode. The lifting plate is made of a magnetic material; the lifting plate divides the interior of the brick body into a sound production cavity and an air exchange cavity; a plurality of vertically arranged exhaust pipes are arranged in the lifting plate; the exhaust pipe penetrates through the lifting plate and is fixedlyconnected with the lifting plate; a one-way valve is arranged in the exhaust pipe; a protruding column is fixedly connected into the lifting plate in a penetrating mode, a sliding pipe is arranged inthe protruding column in a hollow mode and connected with the protruding column in a sealed and sliding mode, the upper end of the sliding pipe is sealed, the lower end of the sliding pipe is fixedlyconnected with the inner bottom face of the protruding column through a reset spring, and through holes are formed in the side wall of the protruding column and the side wall of the sliding pipe. When no blind person passes, no obvious protrusions exist on the upper surface of the brick body, normal pedestrian passing is facilitated, and when the blind person passes, the protruding columns protrude out of the tile body so that the blind person can distinguish the advancing route when walking.

The invention provides a method, system and equipment for an automatic car to pass through a toll station, and a storage medium. The method comprises the following steps that: when a toll station is in the presence in a way ahead the automatic car, the automatic car sends station passing information to the toll station, wherein the station passing information at least comprises the identificationnumber of the automatic car, highway driving information and a current position; the toll station collects the queuing data of each current toll gate, and according to the queuing data, one toll gateis selected to serve as the target toll gate of the automatic car; the toll station establishes a virtual guidance lane for the current position of the automatic car to the target toll gate of the automatic car, and sends the virtual guidance lane to the automatic car; and after the automatic car is driven through the target toll gate along the virtual guidance lane, according to the highway driving information, a charging money amount is obtained, and the charging money amount is deducted from an account corresponding to the identification number of the automatic car. By use of the method, aphenomenon that the automatic driving car can safely pass through the toll station under a situation of no entity lanes can be guaranteed, and the passing speed of the automatic car and the humanizedexperience of a rider can be improved.

The invention discloses a fast transit charging method for vehicles with multiple benefits based on a credit system. The fast transit charging method for vehicles with multiple benefits based on the credit system comprises the following steps: 1) vehicle information identification is performed when the vehicle enters or leaves a charging area; 2) the vehicle information after successful identification is transmitted to a cloud server; 3) a charging platform matches the vehicle information data on the cloud server, calculates according to a charging rule to obtain the toll fee combining the vehicle charging related data, and sends the fee information to the vehicle owner to prompt the vehicle owner to pay the fee in a limited time; and 4) if the fee is not paid successfully within the payment time limit, the charging platform sends information of penalty payment to the vehicle owner; and if the fee is not paid during a period of default, the transit information is recorded in a dishonesty blacklist. The fast transit charging method for vehicles with multiple benefits based on the credit system can ensure that the vehicle owner pays the fee after a certain period of time while ensuring the rapid transit of the vehicle, therefore, the influence on the transit speed caused by situations such as the expense or pre-stored fee of the account is insufficient is avoided; and the fast transit charging method for vehicles with multiple benefits based on the credit system has various economic and social benefits and has a wide application range.

The invention discloses a motor vehicle right-turn no-yield-to-pedestrian snapshot and pedestrian crossing warning system. The system comprises a front-end subsystem; the front-end subsystem comprisesan electronic police snapshot unit, a comprehensive management and control all-in-one machine and a pedestrian prompting device. The warning system fuses passage information of motor vehicles and pedestrian running direction and quantity information, detects the motor vehicles and pedestrians passing through a monitored intersection in real time, automatically captures vehicles having illegal behaviors of not avoiding pedestrians and synchronously transmits the automatically captured information to a pedestrian prompting device in advance through the system, pedestrians are reminded to stop and pay attention to right-turn vehicles, motor vehicle right-turn accidents can be prevented in advance, pedestrians and drivers are reminded and warned in advance, and the probability of motor vehicle right-turn accidents can be reduced. Safe passage of vehicles and pedestrians is ensured, and a traffic environment for civilized driving and law-keeping driving in cities is created.

The invention relates to the technical field of self purification of riverways, in particular to an ecological system for improving the self purification capacity of a riverway and a construction method of the ecological system. The system comprises the riverway, side slopes arranged on the two sides of the riverway and infiltration dams arranged on the riverway at intervals, wherein a stone purification layer is arranged on the surface layer of the river bottom of the riverway. A soil layer is further arranged on the stone purification layer. Water is arranged on the soil layer. An aquatic plant community layer is arranged on the surface layer of the water. Ecological bags are arranged on the side slopes. A vegetation layer is arranged on the surface of each ecological bag. The complete riverway ecological system is constructed in a staging manner through a chemical method, a biological method and an ecological method according to different water quality conditions; the water qualityis purified, and meanwhile the self purification capacity of the water is improved; the original ecological system of the water is restored; no secondary pollution is generated; and it is guaranteed that the repaired riverway ecological system operates stably for a long time.

The invention provides a traffic dredging system for a road in front of a campus and relates to the technical field of road traffic safety for the road in front of the campus, particularly a monitoring device of a vehicle passage barrier gate arranged on a sidewalk in front of a campus door. The system is characterized by comprising a sidewalk barrier gate (B) arranged at the two ends of a sidewalk in front of the campus door, a vehicle barrier gate (A) arranged along the two driving directions of the road that goes across the sidewalk, a remote control center arranged at a traffic safety department, and a ground sensing coil paved on the sidewalk. The body of the vehicle barrier gate and the body of the sidewalk barrier gate are respectively and internally provided with a wireless transmission module. The control unit of the vehicle barrier gate and the control unit of the sidewalk barrier gate are in information interaction with the remote control center of the traffic safety department respectively through the wireless transmission module. The system is strong in practicability and high in reliability. The positive effects of intelligent traffic dispersion and personnel safety transit can be realized.

Disclosed is a ship navigation management system based on an AIS (Automatic Identification System) technology. The system is characterized by comprising a center management platform, wherein the center management platform is connected with a ship information management module, an onboard AIS device, an AIS base station, an environment monitoring module and a real-time monitoring alarm module; the ship information management module comprises an AIS tag for marking ship information, a ship information storage unit and a ship traveling track display unit; the onboard AIS device comprises an onboard broadcast transponder using very high frequency sea bands, a transceiver using very high frequency bands, a data transmission interface, an information processor and a navigation device; and the AIS base station is arranged at a port wharf, and comprises an AIS base station controller, an AIS base station transponder and a base station control unit. The ship navigation management system can effectively prevent ships from entering dangerous water areas and prevent collision between the ships, and provides a reliable guarantee for progress, safety and quality of projects and ship navigation safety.

The invention belongs to the technical field of pilotless automobiles, and particularly relates to an ultra-low-speed crawling method for a pilotless automobile in a mixed road congestion state. The method comprises the following specific steps: analyzing the moving tracks of pedestrians and non-motor vehicles in a range M around a vehicle pre-enveloping area; and according to the distance between the front end of the vehicle and the pedestrians and the non-motor vehicles, whether the pre-moving tracks of the pedestrians and the non-motor vehicles deviate from a vehicle pre-driving track or not and whether the pedestrians see the vehicle or not, instructing a vehicle to stop for waiting, decelerate or drive at an original speed. According to the method, multiple factors are comprehensively considered, so that pedestrians and non-motor vehicles can safely pass through, the vehicles can be ensured to keep moving forwards, the situation that the vehicles cannot continue to run due to the pedestrian safety principle is avoided, and the traffic jam situation caused when the pedestrian flow is large in the mixed road is greatly relieved.

The invention provides a wagon coupler unlocking mechanism which comprises the components of a coupler release rod, a release rod base, a supporting base and a coupler release chain. The coupler release rod is arranged on the release rod base and the supporting base and can freely rotate relative to the release rod base and the supporting base. One end of the coupler release chain is rotatably connected with the end of the coupler release rod, and the other end is rotatably connected with a rotating shaft on the wagon coupler. Through rotating the coupler release rod, the coupler release chain is tightened and the rotating shaft on the wagon coupler is driven to rotate, a lock iron block in a wagon coupler chamber is lifted and the wagon lock is in an unlocked state. After the coupler release rod is placed down, the lock iron block falls by means of self weight, and the rotating shaft returns to a locked state, thereby finishing a whole wagon hook unlocking process. The wagon coupler unlocking mechanism has advantages of simple and reliable structure and convenient detachment. The wagon coupler unlocking mechanism can totally satisfy the general requirement and interchange requirement of a railway wagon coupler buffer device in the Commonwealth of the Independent States (CIS), European countries and some African countries. Furthermore wagon utilization efficiency is improved.

The invention discloses a traffic induction method for left turning at a traffic intersection. The traffic induction method comprises the steps of: calculating a minimum vehicle speed required for a vehicle to pass a specified intersection when the vehicle enters a specified region at the intersection according to the remaining time until a signal lamp is switched to a red light and a distance that the vehicle needs to drive to pass the intersection completely; comparing the minimum vehicle speed with a speed limit value at the intersection, and determining whether the vehicle can pass the traffic intersection before the red light is switched to in an ideal state; if not, prompting the vehicle to control the vehicle speed and drive to a stop line for waiting; and determining a passing coefficient of the vehicle passing through the intersection according to a distance between the vehicle and a front vehicle as well as a speed of the front vehicle if determining that the vehicle can passthe intersection in an ideal state, and making suggestions on whether a vehicle continues to drive according to the passing coefficient. The traffic induction method for left turning at the traffic intersection disclosed by the invention improves the safety of the left-turning vehicle passing through the intersection.

The invention discloses a through type cab emergency door. A pair of cab emergency end doors capable of being opened oppositely outwards is arranged in the center of the front end of a cab; door lock devices are arranged at the inner sides of the cab emergency end doors; the door lock device comprise a door lock, and a lock groove and a lock chain groove formed at the corresponding positions of two door leaves respectively; a lock chain, the movable end of which is matched with the lock chain groove, is fixed in the lock groove; and a ground arc cab apron extended forwards is arranged at the front end of the cab. When a train is temporarily enlarged, the through type cab emergency door structure of a head vehicle is opened and butted with a through passage of a middle vehicle, or the through type cab emergency door structures of two head vehicles are connected, so that the purposes of transferring or evacuating passengers and temporarily improving the delivery capacity are fulfilled; and if a sudden accident (particularly a subway vehicle catches a fire in a tunnel and the like) happens in the transport process, the through emergency evacuation structure is provided, and the passengers in the fault train can be quickly evacuated to a rescue train, so that life and wealth safety of the passengers is ensured.

The invention discloses a shopping self-checkout system, which comprises a shopping device, a detection system and an information management system, wherein the shopping device is used for accommodating selected commodities; the detection system is used for detecting the commodities and carrying out customer self-service payment, and is arranged on the shopping device; and the information management system is used for processing commodity information and payment information from the detection system. The shopping self-checkout system transfers commodity detection and payment processes onto each shopping device, provides a convenient self-service payment method for customers, avoids checkout in queues, saves shopping time for the customers, and enhances consumption experience of the customers.

The invention discloses an emergency braking signal generation device for a high-speed train based on orthogonal collocation optimization. The emergency braking signal generation device comprises a train speed sensor, a dangerous case distance / processing time input unit, a high-speed train central control MCU (micro controller unit), a brake unit and emergency braking alarm and state display equipment. After the train speed sensor is started for measuring current train speed in real time, a train driver inputs a dangerous case distance and the dangerous case processing time into the dangerous case distance / processing time input unit; and the high-speed train central control MCU is used for performing an internal orthogonal collocation optimization method, calculating a braking strategy capable of enabling the train to safely pass through a dangerous case position and enabling the train delay time to be shortest at the same time, converting the braking strategy obtained by the calculation into a braking instruction, sending the braking instruction to the brake unit, and sending an emergency braking alarm signal at the same time. According to the emergency braking signal generation device, the high-speed train can be guaranteed to safely pass through the dangerous case position and the train delay time can be also enabled to be shortest at the same time.

The invention discloses a snow removing vehicle for a road surface with ice and snow. The snow removing vehicle comprises a flat-bed trolley, wherein the front end of the flat-bed trolley is provided with a snow sweeper and a snow pushing shovel in sequence; a flat-bed trolley frame is provided with a first fan, a heat exchanger, a second fan and a hot-air boiler in sequence from front to rear; a first hot-air sprayer and a second hot-air sprayer are respectively arranged under the flat-bed trolley frame from front to rear; a hot-air outlet of the hot-air boiler is communicated with a hot-air inlet of the heat exchanger; a hot-air outlet of the heat exchanger is communicated with an air inlet of the first hot-air sprayer by the first fan; the two ends of the heat exchanger are respectively provided with a cold-air inlet and an air outlet; and the air outlet is communicated with an air inlet of the second hot-air sprayer by the second fan. The snow removing vehicle disclosed by the invention has the beneficial effects that hard accumulated snow or ice layers on the road surface can be rapidly removed, the removal is clean and thorough, so that safety passing of transportation tools can be guaranteed; and the traveling speed of the whole vehicle is high, the traveling speed can reach 30km / h, and the working efficiency and the heat-energy utilization rate are high, and therefore, the snow removing vehicle is especially suitable for removing large-area ice and snow on the road surfaces of airports and highways and the like.

The invention provides a gangway structure for connecting a floating bridge with a floating platform and belongs to the technical field of floating bridge connection. The gangway structure for connecting the floating bridge with the floating platform comprises the floating bridge, the floating platform, footplates, a gangway and supporting limiting frames, wherein the footplates are arranged on the floating bridge and the floating platform; the gangway is hinged between the footplates of the floating platform and the floating bridge; and the supporting limiting frames are hinged on the floating bridge and the floating platform. According to the gangway structure for connecting the floating bridge with the floating platform, as a platform footplate is hinged on a floating bridge platform and the platform footplate is matched with a truss type gangway, the adapted draft difference is great and the adaptation is high; as the supporting limiting frames are arranged and a main support is arranged in the form of a double A-shaped truss, the position of the gangway structure between the floating platform and the floating bridge is effectively limited at a maximum draft difference and at a minimum draft difference so as to ensure that vehicles can safely pass; damage of the bridge body caused by collision between the floating bridge and the floating platform can be avoided; and moreover, the design load of the truss type gangway is reduced, the weight of the structure is reduced and the safety is enhanced.

An intelligent management and control system for vehicles at city intersections, the intelligent management and control system includes a control system and an execution device; the control system includes a controller and a motor, the controller is connected to the motor through wires, and a screw rod is vertically installed on the motor shaft; the execution device includes Lifting rod and fence, one end of the lifting rod is connected with the screw rod through a differential, and a fence is installed on the lifting rod. The sound sensor of the control system is installed outside the control cabinet and connected to the controller through the signal line; the pressure sensor is installed on the fence and connected to the controller through the signal line; the obstacle detection sensor is connected to the controller through the signal line and installed in the control cabinet A backup DC power supply and an alarm are also installed inside, and the alarm is connected to the controller through wires. The intelligent management and control system can automatically control the safe passage of vehicles at urban intersections, effectively avoiding traffic accidents; it can not only maintain normal traffic order, but also ensure that emergency vehicles pass through the intersection quickly when an emergency occurs.

The invention discloses an intelligent street lamp based on the Internet-of-things. The intelligent street lamp includes a base and a cantilever; the base is installed below a lamp post, the right side of the bottom of the lamp post is provided with a control box, the control box is internally provided with a GPRS module, a circuit detector is arranged below the GPRS module, a central processor is arranged below the circuit detector, a voltage regulator module is arranged below the central processor, the cantilever is mounted on the right side of the top of the lamp post, and the right side of the cantilever is provided with an illuminating lamp. In the intelligent street lamp, a designed meteorological sensor can detect the temperature, humidity, PM2.5 value, wind speed, wind direction and rainfall capacity of the location where the lamp is located, the data are processed through the central processor, an electrical signal is sent to control the GPRS module to transmit the data to a database client, the client comprehensively analyzes the weather situation according to the data of street lamps, and the accuracy and the reliability are higher.

The invention discloses a special green message prolonging method, system and device for old people. The method comprises the following steps: acquiring facial information of old people through a facerecognition method; obtaining face information of all pedestrians in a sidewalk monitoring range; performing similarity measurement on the face information of the old people and the face informationof the pedestrians, and determining and marking the old people who verify the identities; tracking the marked old people in real time to obtain a street crossing track of the old people; calculatingthe average street crossing speed of the old people according to the street crossing track of the old people; obtaining the distance between the old people and the end point of the sidewalk, and recording as the remaining distance; determining the lowest safe crossing time according to the average speed and the residual distance; and setting countdown of green message extension time according to the lowest safe street crossing time. According to the invention, the street crossing safety problem of the old people can be solved, and the delay of motor vehicles can be reduced to the maximum extent.

The invention relates to a swing arm drive device for spraying antifreeze on a coal-carrying train, belonging to the field of machinery design. The swing arm drive device for spraying the antifreeze on the coal-carrying train is characterized by being of a structure of changing a shaft diameter by means of shaft sleeves and arranging a drive mechanism in the middle of a shaft, and the swing arm drive device comprises a square upright, a clamp device, a slewing mechanism, a driving mechanism, a stop block, an upper arm assembly and a lower arm assembly. One shaft sleeve is designed at each end of the shaft of the swing arm drive device, and the drive mechanism is arranged in the middle area of a rotating shaft, thus the distance between an upper support plate and a lower support plate in a limited space is increased, and the force applied by the supported swing arm to the rotating shaft is reduced. According to the invention, the diameter of the rotating shaft is changed by means of the shaft sleeves, and the position of the drive mechanism is rationally arranged, therefore volume and weight of the swing arm drive device are reduced, cost is saved and field installation is convenient. The swing arm drive device for spraying the antifreeze on the coal-carrying train has the characteristics of lower horizontal rotating speed, smaller rotating driving torque and strong radial carrying capacity at two ends of the rotating shaft, is in particular suitable for support and horizontal rotating drive to the swing arm for spraying the antifreeze on the coal-carrying train.

The invention provides an installation and construction method of a flexible contact network section insulator, and belongs to the technical field of contact network construction methods. The method comprises the following steps: 1, measuring the installation center position of the section insulator, wherein the position is ultrahigh; 2, installing a carrier cable insulating rod; 3, installing thesection insulator; and 4, rechecking and adjusting data. According to the construction method, the construction cost can be reduced, the hidden dangers of arching and many hard spots are eliminated,the construction quality and the construction safety are improved, and the adjustment and maintenance workload is reduced.