453 results about "Air brake" patented technology

The embodiment of the invention discloses a braking force distribution method and device for chassis control of an unmanned vehicle. The method comprises the steps that according to an acceleration instruction, a vehicle dynamics model and a PI controller are applied to obtain required torque; determining whether the vehicle is in a driving mode or a braking mode according to the required torque; and if it is determined that the vehicle is in a braking mode, according to the required torque, under the criterion of feeding back electric energy as much as possible, an electric braking torque instruction and an air braking reference value are obtained, the air braking reference value is adjusted based on control parameters adjusted by a neural network, and an air braking instruction is obtained. By means of the mode, on the premise that the maximum electric braking is guaranteed, the rapidity and accuracy of braking distribution and composite braking are improved, and meanwhile the accuracy and real-time performance of pneumatic braking are improved.

The invention belongs to the technical field of ship design and construction, and discloses a positive pressure protection device, a ship and a positive pressure protection method.The positive pressure protection device comprises a shell, a main draught fan, a standby draught fan, a first air brake, a second air brake, a pressure difference detector and a control system, the shell can communicate with a cabin, and the air supply end of the main draught fan and the air supply end of the standby draught fan both communicate with the shell; the first air brake is arranged between the air supply end of the main fan and the shell and used for controlling communication or closing between the main fan and the shell. The second air brake is arranged between the air supply end of the standby fan and the shell and used for controlling communication or closing between the standby fan and the shell. The pressure difference detector is used for detecting the air pressure difference inside and outside the cabin; and the control system is in communication connection with the main fan, the standby fan, the first air brake, the second air brake and the pressure difference detector. When the main fan breaks down, the control system can enable the positive pressure protection device to be immediately and automatically switched to the standby fan to supply air so as to maintain the positive pressure in the cabin.

The invention relates to the technical field of new energy vehicles, and particularly discloses a control method, system and device for steep slope slow descent of an electric vehicle and a storage medium, and the method comprises the steps that a vehicle control unit calculates the required torque value of the vehicle at the actual vehicle speed based on the current gear, the actual vehicle speed, the slope, the vehicle mass and the state of a power battery; sending a negative torque request to the motor based on the demand torque value; the state of the vehicle is monitored, when it is monitored that the current state of the vehicle meets the preset abrupt slope slow descent function condition, according to the met abrupt slope slow descent function condition, the motor torque and air brake synergistic effect are dynamically adjusted based on the negative torque request, and the cruise switch of the abrupt slope slow descent function is controlled; therefore, the vehicle can run at a constant speed under the downhill road condition. According to the scheme, the abrupt slope slow descent function of the vehicle is controlled, potential safety hazards when the vehicle is driven on a high-speed downhill road section are avoided, and the safety of the whole vehicle is effectively improved.

The invention relates to the technical field of train operation optimization, and discloses an air braking efficiency uncertainty-oriented freight train operation optimization method, which comprises the following steps of: generating a state value function approximate value and a working condition selection set by adopting a constraint-based state value function table learning algorithm according to an initial state and a disturbance sampling value of a freight train; according to the state value function approximate value and the working condition selection set, a state value function table approximate algorithm based on operation time estimation is adopted to generate an operation time approximate value and an operation time estimation value; and according to the operation time approximate value and the operation time estimated value, a freight train operation sequence meeting the air braking constraint, the speed limit constraint and the operation time limit is generated by adopting an operation optimization algorithm meeting the time constraint. According to the method, the freight train operation sequence meeting various constraints can be calculated in a short time, meanwhile, the influence caused by uncertain disturbance is reduced, and the overall optimization effect of the calculation result is improved.

The invention provides a hydrogen fuel electric light truck whole truck structure. The hydrogen fuel electric light truck whole truck structure comprises a cab, a container, a truck frame, a hydraulic tail plate system, a hydrogen system, an electric system, a cooling system and an air brake system. The hydraulic tail plate system comprises a hydraulic tail plate, a hydraulic tail plate oil original tank, a hydraulic tail plate controller and a hydraulic tail plate cross beam; the hydrogen system comprises a hydrogen fuel electric pile, a left hydrogen storage tank, a right hydrogen storage tank, an air inlet air filter and an exhaust silencer; the power system comprises a battery pack, an all-in-one unit, a DCDC, a DCAC, a PTC, a hydrogen stack high-voltage box, a battery high-voltage box, a charging port and a low-voltage power supply unit; the cooling system comprises a high-pressure radiator, a low-pressure radiator, a low-pressure radiator water replenishing tank, a high-pressure radiator water replenishing tank, an air conditioner condenser, an air conditioner electric compressor and an integrated kettle; the air brake system comprises an inflating pump, a drying tank, a lower air cylinder, an upper air cylinder, a front axle and an electric drive axle. The layout of the whole truck can be optimized, so that the hydrogen fuel electric light truck can be compatible with an air brake and a hydraulic tail plate.

The invention discloses a pressure-limiting valve seat, a pressure-limiting valve assembly, a valve group module and an air braking system. The pressure-limiting valve seat comprises a valve seat base body, and the valve seat base body is provided with a first valve cavity, a second valve cavity and a third valve cavity which are independent of one another; the brake cylinder interface and the sensing valve lower cavity interface are communicated with the first valve cavity, the pressure reduction air cylinder interface and the sensing valve upper cavity interface are communicated with the second valve cavity, and the control valve interface is communicated with the third valve cavity; the valve seat base body is further provided with a pressure limiting valve connector used for being connected with a pressure limiting valve, and the pressure limiting valve connector communicates with the first valve cavity, the second valve cavity and the third valve cavity in a one-to-one correspondence mode. The brake cylinder connector, the sensing valve lower cavity connector and one of the pressure limiting valve connectors communicate with the first valve cavity, so that when a corresponding valve port of the pressure limiting valve communicates with the pressure limiting valve connector, the pressure limiting valve can communicate with the brake cylinder connector and the sensing valve lower cavity connector at the same time through the first valve cavity; therefore, the pressure limiting valve can be communicated with the brake cylinder and the sensing valve lower cavity of the sensing valve at the same time.

The ship residential area cabin ventilation system comprises a central air conditioner and a main exhaust pipeline, a plurality of cabins are divided into a clean area, a potential pollution area and a negative pressure area, and a fresh air outlet of the central air conditioner communicates with the clean area, the potential pollution area and the negative pressure area through air supply pipelines connected in parallel. An air return port of the central air conditioner is communicated with the three areas through an air return pipeline, an air detection device and a first electric air brake are sequentially arranged on the air return pipeline in the air flowing direction, an inlet of the main exhaust pipeline is communicated with the air return pipeline, and a second electric air brake is arranged on the exhaust pipeline; the potential pollution area and the negative pressure area communicate with the main exhaust pipeline through exhaust branch pipes correspondingly, third electric air brakes are arranged on the exhaust branch pipes, and the first electric air brake, the second electric air brake, the third electric air brake and the air detection system are in linkage connection through a control system. The ship residential area cabin ventilation system can carry out comprehensive prevention and control, and air in a prevention and control area is prevented from entering a clean area.

The invention discloses an anti-folding brake control method for a new energy tractor and a trailer, and belongs to the technical field of new energy vehicle braking. The method specifically comprises the steps that when braking is light braking, a tractor only starts electric braking, and a trailer starts slight air braking; when the braking is heavier braking, except for starting electric braking, all pneumatic brakes of the tractor provide corresponding braking air pressure according to calibration parameters, and the trailer provides corresponding pneumatic braking air pressure according to loads; when the braking is emergency braking, different braking air pressures are provided for each pneumatic brake of the tractor and the trailer according to pre-calibrated parameters, and then automatic adjustment is carried out according to wheel speed signals of all vehicles and signals fed back by a vehicle body stabilizing system. The braking force redistribution method is simple and is not limited by whether the trailer is provided with a power battery or not, the braking stability of the vehicle can be guaranteed, the kinetic energy of the vehicle can be recycled to the maximum extent, and the economical efficiency of the vehicle is improved.

The invention relates to a motor train unit vehicle brake control system which comprises a brake control device, a working air cylinder, an auxiliary air cylinder, an air brake valve and an electric pneumatic control module, and the electric pneumatic control module comprises an electronic brake control unit, an electric pneumatic valve, a switching valve, an intercepting valve and a two-way valve and further comprises a pressure reducing valve and a relay valve. The system can be switched between electro-pneumatic braking and air braking, and pre-control pressure is transmitted to the relay valve through the two-way valve. Two braking control modes of automatic air braking and straight-through type electric pneumatic braking are integrated, electric pneumatic braking serves as a main braking mode, automatic braking is hot standby redundancy, the reliability of the braking effect is improved, and it is ensured that a motor train unit runs safely.

The invention provides an anti-freezing ventilation system and method for a ship in an ice region, and the system comprises a cabin air inlet duct which is sequentially provided with a first air inlet shutter, a cabin air feeder, a first air brake, a first temperature sensor and a cabin air supply outlet in the airflow direction; the mixed air supply duct is sequentially provided with a second air inlet shutter, a mixed air feeder and a first remote control air brake in the airflow direction; the generator smoke exhaust pipe main pipe is provided with a first waste gas heat exchanger; the mixed air supply duct is in heat exchange connection with the first waste gas heat exchanger, and an outlet of the mixed air supply duct communicates with the cabin air inlet duct between the first temperature sensor and the first air brake. Exhaust gas on the ship is used for heating ventilation of rooms such as the cabin chamber and the equipment chamber, and on the premise that the requirement for the ventilation temperature of the cabin chamber and the equipment chamber of ice navigation is met, ship electric power and fuel are saved.

The invention provides a heavy-load train energy consumption model construction method and device, electronic equipment and a storage medium. The method comprises the steps that vehicle parameters of each time of heavy haul train, the position and duration of each time of air braking of the heavy haul train in a plurality of long and large downhill sections, the maximum deviation value of the running speed in a constant-speed section, running data and energy consumption data are collected; dividing the collected data into a plurality of sample result data according to the trip times of the heavy haul train; and inputting the sample training data and the sample result data into a pre-constructed neural network model for training to obtain a heavy load train energy consumption model. And the neural network model is trained by taking the vehicle parameters, the air braking position and duration, the speed maximum deviation value and the driving data as sample training data, so that the energy consumption prediction of the trained heavy load train energy consumption model can be more accurate.

The invention relates to a flow guiding apparatus of a motor vehicle, comprising a spoiler which is fastened to a tailgate of the motor vehicle, and to an adjustment kinematics device for adjusting the spoiler between a rest position, in which the spoiler is arranged in a flush-mounted manner in the tailgate, and at least one functional position, in which the spoiler is deployed beyond the vehicle contour or the surface of the tailgate with regard to the height and / or the angle. In order to achieve a downforce effect and / or braking effect and / or aerodynamic improvement during driving of the motor vehicle, the adjustment of the adjustment kinematics device takes place via actuable drive means. This flow guiding apparatus is intended to be developed in such a way that a multiplicity of operating positions of the spoiler can be set with a compact overall design and integration into the movable tailgate, with at least one operating position intended to fulfil the function of an air brake. For this purpose, the adjustment kinematics arrangement comprises at least one adjustment kinematics unit which is formed from a first adjustment kinematics system and a second adjustment kinematics system which is coupled to the former in an operatively connected manner, the first adjustment kinematics system being configured as a four-bar linkage and to set a deployment height, and the second adjustment kinematics system being configured as a four-bar linkage and to set a deployment angle, and an adjustment of the spoiler being a superimposed kinematic adjustment movement of the first and second adjustment kinematics system, and the first adjustment kinematics system comprising at least one pivoting axle which is mounted in a stationary manner and is pivotal via an electric motor as drive means, and the second adjustment kinematics system comprising a pivoting axle which is mounted in a stationary manner and is pivotable via a separately actuable electric motor as drive means.

The invention relates to the technical field of thread rolling machining, and discloses penetrating rod thread rolling equipment for an automobile air brake, the penetrating rod thread rolling equipment comprises a plurality of sets of thread rolling mechanisms which are sequentially connected in series, and each thread rolling mechanism comprises a feeding assembly, a thread rolling machining assembly, a discharging assembly, a feeding assembly and a detecting assembly; the detection module is used for detecting materials, the discharging module is used for discharging unqualified materials, and qualified materials can enter a thread rolling station; the thread rolling machining assembly is used for conducting thread rolling machining on the materials at the thread rolling station. The hopper in the subsequent thread rolling mechanism is in butt joint with the discharging assembly in the previous thread rolling mechanism. Three sections of threads are machined at a time by splicing the three thread rolling mechanisms, automatic conveying is achieved between the adjacent thread rolling mechanisms, materials do not need to be manually conveyed in sequence, the production efficiency is remarkably improved, and manual intervention is reduced; before entering the thread rolling process, the penetrating rod is subjected to at least one detection, defective products are eliminated, and the production requirements of high-precision parts are met.

The utility model discloses a composite cabin ventilation system meeting dynamic positioning redundancy requirements, which comprises an exhaust shutter, an air inlet shutter and a fan which are positioned in an upper cabin, a structural air duct positioned in a middle cabin and a diesel generator set positioned in a lower cabin, and the air inlet shutter, the fan, the structural air duct and a cavity of the lower cabin are sequentially communicated. The cavity of the lower-layer cabin is communicated to an exhaust shutter through a chimney; and an air brake for controlling the ventilation quantity is arranged between the fan and the structural air duct. According to the utility model, a water cooling mode is utilized to completely replace the heat dissipation air volume of a main part during the design of a conventional cabin ventilation system, and the discharge capacity of a ventilation fan and the size of an air duct are reduced. The internal circulation cooling jet fan does not need to be started, normal operation of the ship can be guaranteed through the frequency conversion fans with the small number and power, and energy conservation and emission reduction are achieved. All the frequency conversion fans and the internal circulation cooling jet fans can work at the same time, the use requirements of tropical areas under extremely hot working conditions are met, and the working condition adaptability of ships is improved.

The invention discloses an online monitoring system and method for the air braking performance of a long marshalling freight train, and the system comprises a power module, a pressure monitoring module, a vibration monitoring module, a data storage and transmission module, and an upper computer. Dynamic change data of pressure of a braking system and vibration data of a braking valve in the braking process are obtained through a pressure monitoring module and a vibration monitoring module, a truck is organized into a group for a loaded truck experiment, and a truck air braking prediction model is built by means of Matlab simulation software and carried on a train monitoring platform. Prediction values of pressure of all pipelines and cylinder bodies of a braking system are returned to be compared with real pressure values, the leakage rate of the pressure values of all the pipelines and the cylinder bodies, whether the 120 valve effect is good or not and whether braking and relieving delay of a train are normal or not are analyzed and evaluated, and safety early warning is given out when abnormal conditions occur. The method can be used for monitoring the state of the heavy-load train and has application value in the early warning aspect of a train braking system.

The invention provides an energy storage system, an electric ship and a fire extinguishing method. The energy storage system comprises a box body and a fire extinguishing system, and a battery bin and an electrical bin which are isolated from each other are arranged in the box body; the fire extinguishing system comprises an exhaust fan, a first air brake and a second air brake which are mounted on the box body; when the battery bin is in the first state, the exhaust fan works, the first air brake and the second air brake are opened, the first air brake is matched with the exhaust fan and used for exhausting at least part of gas in the battery bin, and external gas enters the battery bin through the second air brake. When the battery bin is in the first state, the exhaust fan can work in cooperation with the first air brake, exhaust gas in the battery bin, accelerate gas exchange between the battery bin and the outside of the energy storage system and rapidly reduce the concentration of combustible gas in the battery bin, so that the battery bin is in the normal working state again, and the battery bin and the electrical bin are isolated; when fire or combustible gas exists in the battery bin, the fire or the combustible gas cannot spread to the electrical bin quickly.

The invention provides a freight train air-power joint multi-target manipulation optimization method, and relates to the technical field of rail transit operation control and energy-saving optimization, and the method comprises the steps: setting training parameters, vehicle information and freight train line information, and initializing a reinforcement learning environment and variables; calculating a selection action by utilizing a strategy function; decomposing the action vector to obtain a new state; calculating the state value of the new state; updating a Q value related to the current state in the Q table; and for the condition that the current step number n exceeds the maximum round number N, judging whether the updated Q table is converged or not by using the total reward, if so, executing actions by the agent according to the Q table, calculating a new state, obtaining a final sequence working condition, and completing the air-power joint multi-target operation optimization of the freight train. The problem that in the prior art, air braking and electric braking are not well matched in the long downhill section circulating braking process of the heavy-duty train is solved.

The utility model provides an electromagnetic regulating valve which comprises a first split body, a second split body, an electromagnetic valve assembly and a fixing part, the electromagnetic valve assembly is located between the first split body and the second split body, and the first split body and the second split body are detachably installed together through the fixing part. And the electromagnetic valve assembly, the first split body and the second split body are assembled together. The electromagnetic regulating valve is further provided with an air inlet hole and an air outlet hole, the electromagnetic valve assembly comprises a body and a valve element, the body is provided with a movable cavity for the valve element to move, the air inlet hole and the air outlet hole are communicated with the movable cavity, and the valve element at least corresponds to the air inlet hole and is used for controlling opening or closing of the air inlet hole. When the air inlet hole is opened, external airflow enters the electromagnetic regulating valve and flows out of the air outlet hole, and when the air inlet hole is closed, the external airflow is prevented from entering the electromagnetic regulating valve, so that the air pressure of the air outlet hole is controlled. In addition, the utility model further provides a vehicle pneumatic brake system and a vehicle.

The invention belongs to the technical field of railway wagon air braking, and discloses a railway wagon air braking modular assembling device which comprises an L-shaped hanging seat, a module hanging bracket and an air braking assembly, the air braking assembly comprises an auxiliary air cylinder, a double-chamber air cylinder, a pressure limiting valve and a 120 valve, the pressure limiting valve is installed on the module hanging bracket through an air path body, and the module hanging bracket is provided with an installation opening. The front side and the rear side of the module hanging bracket are provided with installation lapping plates, the L-shaped hanging seat and the installation lapping plates are vertically and mutually hooked and connected through bolts, and an upper longitudinal air cavity, a lower longitudinal air cavity and a vertical air cavity are formed in the air path body, the inner end of the lower longitudinal air cavity is communicated with two lower connectors on the left side of the pressure limiting valve, the inner end of the lower longitudinal air cavity on the front section penetrates leftwards to form a transverse air cavity, and the air brake integrated modular installation device has the advantages that air brake integrated modular installation is achieved, the space utilization rate is high, the structures are linked with one another, the working environment is improved, installation is easy and rapid, and cost is reduced.

A train and an electro-pneumatic blended braking control system thereof. The braking modes of the train comprise an autonomous braking mode and an independent braking mode, corresponding braking branches are selected by means of the output of a braking control unit, and different braking modes are applied. An autonomous braking branch comprises a first solenoid valve (7) acting on a first application valve (5) to cut off air braking when the first solenoid valve (7) is powered on, so as to realize the priority of electric braking. In an independent braking branch, the braking control unit acts on the first application valve (5) by means of an independent braking control branch (4).

The invention discloses a railway hopper car for transporting powdery goods, which relates to the technical field of railway hopper cars, and comprises a car body, a pneumatic control system, a car coupler buffer device, an air brake device, a manual brake device and a bogie, the vehicle body comprises a bottom frame, two funnels with double-sealing structures are arranged at the bottom of the bottom frame and distributed on the two sides of a middle beam of the bottom frame, two side walls are arranged on the two sides of the bottom frame, end walls are arranged at the two ends of the two side walls respectively, a vehicle roof is arranged on the upper portions of the side walls and the end walls, and unloading openings are formed in the bottoms of the funnels. A turnover type bottom door with a secondary locking device is arranged at the unloading opening, and the car roof comprises a fixed top cover assembly and a movable top cover assembly arranged over the fixed top cover assembly. The hopper car side wall is reasonable in design, and the problems that the hopper car side wall cannot give consideration to strength and space, a top cover is clamped, a bottom door is prone to being accidentally opened and sealing performance is poor are solved.

The invention relates to a motor train unit high-redundancy microcomputer control electric pneumatic brake control system which comprises a brake control device, a working air cylinder, an auxiliary air cylinder and a cutout cock, and the brake control device comprises an air brake valve, an electric pneumatic brake module, a relay valve, an empty and load valve, the cutout cock, a pressure reducing valve, a one-way valve, an electromagnetic valve and a pneumatic control valve. The electric pneumatic braking module comprises an electric pneumatic valve, a switching valve, a two-way valve, a shutoff valve and an electronic braking control unit; the electric pneumatic valve is of a redundant structure and comprises an inflation electromagnetic valve and an exhaust electromagnetic valve. One path of the auxiliary air cylinder is supplied by total air through a cutout cock, a pressure reducing valve and a one-way valve, and the other path is supplied by an air brake valve; opening and closing of the brake pipeline can be completed through manual operation of the cutout cock and electric control of train control signals. The technical problems that emergency braking is caused by low air pressure of an auxiliary air cylinder during frequent braking or skid prevention of an existing system, electric pneumatic braking reliability is guaranteed, and maintenance cannot be conducted in time when a braking pipeline breaks down are solved.

The invention discloses a control method for stable operation of a heavy-load combined train. The method is applied to the heavy-load combined train formed by connecting at least two traction locomotives and at least one dragged vehicle in series, and comprises the following steps: when the ramp type of the heavy-load combined train running on the current line is a preset type, before or simultaneously adjusting the working state of an air braking device to be a relieving state, adjusting the working state of the air braking device to be the relieving state; controlling the power braking device of the master control locomotive to increase the power braking force, and increasing the power braking force by the power braking device of the slave control locomotive; when the working state is adjusted to be a relieving state, the initial relieving moment is determined, when the accumulative relieving duration reaches the preset first duration, the power braking force of the power braking device of the master control locomotive is adjusted and reduced, and the power braking force of the power braking device of the slave control locomotive is adjusted and reduced; changes of hook pulling force and hook pressing force of the middle slave control locomotive are reduced, the longitudinal force of the train is controlled within an evaluation index range, and the running safety and stability of the train are improved.

A device adapted for attachment to a coupler of a trailing railcar of a train includes an enclosure defining an internal compartment, a port adapted for connection to an air brake hose receiving air from a brake pipe of the train, a handle extending from the enclosure, a communication device disposed within the internal compartment of the enclosure, and at least one antenna connected to the communication device and extending at least partially through the internal compartment of the enclosure and into an internal cavity of the handle.

A silencer unit for a compressed-air system of a commercial vehicle, in particular a compressed-air brake system of a commercial vehicle, has at least one interface for connection to the brake system, in particular to an outflow duct of the brake system. The silencer unit has at least one air inlet and at least one air outlet, wherein the air outlet in the assembled state and the state of the silencer unit connected to the brake system, has an orientation which is not oriented vertically downward in the direction of the ground. A splashguard element is provided about and / or on the air outlet. Further, a compressed-air system for a commercial vehicle and a commercial vehicle are disclosed having a silencer unit.

The utility model discloses a hydraulic control reversing valve and a brake circulation system for a loader, and belongs to the technical field of engineering machinery. The defects that in the prior art, a traditional brake system is poor in brake effect and even fails due to the fact that brake fluid in a pipeline is lacked are overcome. A main body structure of the hydraulic control system comprises an air storage tank, an air brake valve, a booster pump, a brake caliper, a hydraulic control reversing valve and an oil tank, the air brake valve is respectively connected with air inlets of the air storage tank and the booster pump, a port P of the hydraulic control reversing valve is connected with a high-pressure oil port of the booster pump, a port A is connected with an oil inlet of the brake caliper, a port B is connected with an oil outlet of the brake caliper, and a port T is connected with the oil tank. The utility model is mainly applied to engineering machinery such as loaders and the like.

A number of variations may include a product including a body mounted air brake stabilizing and steering a vehicle having autonomous driving capabilities or functions, and a method of using the same, wherein the air brake is power actuated.

The invention provides a method for calculating train braking force based on heavy-load combined train pipe pressure fluctuation, and belongs to the technical field of locomotive braking force calculation. The problem that the requirement for exploration and analysis of heavy-load train pipe pressure fluctuation influence factors cannot be met in the current detection and test of a heavy-load train air braking system is solved. Comprising the following steps: calculating the brake cylinder pressure of the vehicle according to pressure air of an auxiliary air cylinder when the vehicle is braked and pressure air filled into a brake cylinder by a train pipe through a local reduction valve in the secondary local reduction process; the step of calculating the braking force of the vehicle comprises the substeps of calculating brake shoe pressure; calculating the friction coefficient of the brake shoe; calculating the braking force of a single brake shoe; calculating the air braking force of the whole heavy haul train; calculating the train pipe pressure reduction r0 when the braking force of the whole heavy-load train is not influenced by the temperature, calculating the train braking force when the braking force of the whole heavy-load train is not influenced by the temperature according to the r0, and calculating the train braking force when the braking force of the whole heavy-load train is influenced by the temperature; the method is applied to train braking force analysis and calculation.

The utility model relates to the technical field of air brake steel pipes, and discloses an anti-corrosion air brake steel pipe which comprises an air brake steel pipe body and a connecting ring, fixing rings are fixedly arranged at the two ends of the air brake steel pipe body, and the outer surface of the air brake steel pipe body is coated with an anti-corrosion coating. The threaded caps are aligned and inserted into the corresponding connecting rings, then the threaded caps are rotated to rotate the hemispheroid clamping blocks into the corresponding spherical clamping grooves in the connecting rings, at the moment, the hemispheroid clamping blocks are connected with the corresponding spherical clamping grooves in a clamped mode under the springback effect of the springs, and rapid installation of the air brake steel pipe is achieved. By rotating the fixing ring, the hemispheroid clamping block is separated from the spherical clamping groove and retracts into the mounting groove again to complete unlocking, and then the air brake steel pipe can be rapidly disassembled; the anti-corrosion coating has good adhesive force and abrasion resistance, the air brake steel pipe can be effectively protected from being affected by the external environment, meanwhile, the air brake steel pipe can be effectively prevented from being corroded, and the service life of the air brake steel pipe is greatly prolonged.