33results about How to "Avoid flat tire accidents" patented technology

The invention relates to an anti-explosion wheel which comprises a rim, a tire covered on the rim, and an inflating chamber arranged between the rim and the tire, and also comprises a pressure sensor, a gas generation and controller, wherein the pressure sensor is arranged to be used for monitoring an inside pressure value of the inflating chamber; the gas generation and controller is arranged on the rim and is connected to the pressure sensor to obtain the inside pressure value of the inflating chamber as well as is arranged to be as follows: when the inside pressure value is slowly reduced or is lower than a first preset pressure value, the gas generation and controller replenishes gas to the inflating chamber through a first channel communicated to the inflating chamber until reaching the first preset pressure value; and when the inside pressure value exceeds a second preset pressure value, the gas generation and controller opens a second channel capable of communicating the inflating chamber with outside air to exhaust excessive gas in the inflating chamber towards the outside until reaching the second preset pressure value, and the second preset pressure value is same as or different from the first preset pressure value. The anti-explosion wheel has the advantages of novel design and safety and reliability in use, and can avoid traffic accidents caused by abnormal tires, thus greatly improving driving safety performance.

The invention discloses an aircraft braking system capable of preventing mistake output and control method of the aircraft braking system. The aircraft braking system comprises a hydraulic switch, anoutput port of a state signal of the hydraulic switch communicates with the input end of the pressure acquisition interface of an anti-skid brake control box, and the hydraulic pressure acquisition port of the hydraulic switch communicates with a working oil port of a brake device; and a working oil port of an electro-hydraulic pressure servo valve is connected with a hydraulic pipeline. The powerinput end of a right landing gear landing switch communicates with the negative pole of a circuit protection automatic switch, and the output end of the right landing gear landing switch communicateswith the power input end of a left landing gear landing switch; and the power output end of the left landing gear landing switch communicates with the landing switch signal acquisition interface of the anti-skid brake control box. According to the aircraft braking system, the air / ground state of the aircraft is determined through the on-off of the left landing gear landing switch and the right landing gear landing switch and the speed state signal of the aircraft, the false alarm signal is avoided under the state thata main brake wheel lands and turns up when the aircraft landed, and the accuracy of the residual pressure alarm signal is improved.

The invention provides an airplane emergency brake system and a design method thereof. A brake oil port of a hydraulic electromagnetic valve in the airplane emergency brake system communicates with anoil inlet of a hydraulic cylinder seat of an airplane wheel. An oil inlet of a hydraulic pressure reducing brake valve is externally connected with a hydraulic source. One binding post of a single-pole double-throw switch of a hydraulic relay is connected with a direct current power supply; and another binding post of the single-pole double-throw switch of the hydraulic relay is connected with anelectromagnet of a hydraulic electromagnetic valve through a lead. When the oil liquid pressure from the hydraulic pressure reducing brake valve reaches a contact switch-on pressure of the hydraulicrelay, a contact of the hydraulic relay is switched on; and moreover, the direct current power supply is connected to the electromagnet of the hydraulic electromagnetic valve so that the hydraulic electromagnetic valve releases pressure, and therefore, the pressure of the emergency brake system with an active anti-skid braking function is reduced. The airplane emergency brake system has the advantages that the emergency brake system with the active anti-skid braking function can compare an actual braking pressure with a braking pressure value set by the system so as to actively adjust the braking pressure, and therefore, the active skid prevention purpose is achieved.

The invention discloses a tire emergency device configured in a wheel groove of a rim. The tire burst emergency device comprises a tightening belt, a plurality of clamping blocks and a monitoring device. The tightening belt is a circular ring formed by connecting of two semicircular supporting belts. The radial outer surface of the tightening belt is smooth. The tightening belt is matched with the wheel groove in width. The clamping blocks are uniformly arranged on the center line of the radial inner surface of the tightening belt. The monitoring device is arranged between the two arbitrary clamping blocks, used for monitoring the tire state and integrated with an emitter. The emitter is used for sending the tire state monitored by the monitoring device. According to the provided tire emergency device, it can be guaranteed that a steering system and a brake system of a vehicle are controllable under the tire burst state; sideslip and side turning accidents of the vehicle can be effectively avoided, and safety is high; warning in advance can be achieved, and the occurring rate of vehicle tire burst can be effectively decreased.

The invention relates to an accessory for automobiles, in particular to an universal anti-explosive valve inside for automobile tyres, which comprises a rod, a propelling spiral, a rod sleeve, an anti-air-exhaust seal ring, an air exhaust pipe, a joining seal ring, an anti-air-exhaust spring, an anti-air-charging seal ring, a circular rubber bowl, an anti-air-charging spring and an air cock cap with a hole. The rod is in the rod sleeve, which is in the exhaust pipe; the anti-air-exhaust seal ring is adhered to the lower surface of the edge at upper end of the rod sleeve, the anti-air-exhaust spring is looped on the rod sleeve; the anti-air-charging spring is looped on the rod sleeve; the bottom end of the rod sleeve has a circular conical surface, the lower part of the rod sleeve has a clasp; at the upper port of the exhaust pipe, a circular conic surface is provided. At using, the valve inside of the former air cock is screwed out, and the valve inside of this invention is screwed in. The invention can both charge air and automatically discharge air so as to reduce pressure, and can allow non-professional technical persons to use on existing tyres. The invention is highly universal.

The invention relates to a process for achieving security upgrade of a car wheel. The process comprises the following steps of removing the car wheel; disassembling the car wheel into a hub and a tire; cleaning the inner wall of the tire; spraying a polymer hot-melt self-closing and repair memory adhesive layer on the inner wall of the tire of the car wheel; assembling the car wheel; inflating the car wheel with inert gas; balancing the car wheel; installing the car wheel. By adopting the process, the car wheel can be upgraded to a security car wheel which can normally operate at minus 40 DEG C to 120 DEG C and is bullet-proof inside, explosion-proof and resistant to puncture.

The invention relates to a process for achieving puncture resistance security upgrade of a car wheel. The process comprises the following steps of removing the car wheel; disassembling the car wheel into a hub and a tire; cleaning the inner wall of the tire; spraying a polymer hot-melt self-closing and repair memory adhesive layer on the inner wall of the tire of the car wheel; assembling the car wheel; inflating the car wheel with inert gas; balancing the car wheel; installing the car wheel, wherein the polymer hot-melt self-closing and repair memory adhesive comprises the following components by weight percent: (1) 45-50% of thermoplastic elastomer; (2) 40-45% of tackifier; (3) 5-8% of softener; (4) 0.5-1% of anti-aging agent and / or antioxidant; (5) 2-5% of filler. By adopting the process, the car wheel can be upgraded to a security car wheel which can normally operate at minus 40 DEG C to 120 DEG C and is bullet-proof inside, explosion-proof and resistant to puncture.

The invention provides an aircraft brake system with an air over-pressure alarming function and a control method. The aircraft brake system with the air over-pressure alarming function comprises a hydraulic switch; a state signal output port of the hydraulic switch communicates with an input end of a pressure collection interface of an anti-skid braking control box; and a hydraulic pressure collection port communicates with a hydraulic pipeline of a working oil port of a brake device. A working oil port of an electro-hydraulic pressure servo valve is accessed into a hydraulic pipeline. A powersupply input end of a right landing gear ground switch communicates with a cathode of a circuit protection automatic switch; and a power supply output end of the right landing gear ground switch communicates with a power supply input end of a left landing gear ground switch. A power supply output end of the left landing gear ground switch communicates with a signal collection interface of a sliding brake control box ground switch. According to the aircraft brake system with the air over-pressure alarming function, by using the hydraulic switch to detect the pressure of a brake pipeline, the over-pressure situation in an air brake system of an aircraft is found earlier and treated earlier to avoid a fault that the aircraft lands with pressure when the aircraft has no ground protection function or ground protection of the aircraft fails to work; and therefore, tire burst accidents are prevented, and the aircraft landing braking safety and reliability are enhanced.

The invention relates to an accessory for automobiles, in particular to an universal anti-explosive safe air cock for automobile tyres, which comprises a pressure rod, an air cock body, a spring, an air-pressing bowl, an air-sealing rubber ring, an air discharging hole, an air charging hole, an air-charging seal ring, a joining seal ring, an air-sealing bowl, an ejector pin and an air cock cap. The air cock body is threaded with the former air cock drum, the pressure rod passes through the through hole in the air-pressing bowl and the air charging hole in the air cock body, the lower end of the pressure rod is connected with the air-sealing bowl, the spring is looped on the pressure rod; the ejector pin is located inside the lower end of the air cock body. The upper end of the ejector rod is a flat cylinder, the air discharging hole is an arc-like hole with two arcs that are same and co-central; in the upper surface separated in the air cock body, two conic lobes that are of same arc and co-central with the outer and inner arc of the air discharging hole are provided. The invention can both charge air and automatically discharge air so as to reduce pressure, and non-professional technical persons can easily use the invention for the air cocks of existing tyres.

The invention relates to an accessory for automobiles, in particular to an universal anti-explosive pressure-limiting air cock for automobile tyres, which comprises a pressure rod, an air cock body, an air cock cap, a slider, a casing, an air pressing bowl, a spring, an air-pressing rubber ring, an air-blocking rubber ring, an air-sealing bowl, an joining seal ring, an ejector pin, an air-discharging hole, an air-discharging edge hole, an air inlet and an air outlet. The casing is like a drum, one end of the casing is connected with the former air cock of a tyre, another end is connected with the air cock body. The lower part of the air cock body is connected with the casing, the upper part is connected with the air cock cap; the rod part of the air-sealing bowl is connected with the slider. The air-pressing bowl is located in the casing, the spring is compressed between the slider and the air-pressing bowl. The air-pressing rubber ring and the air-blocking rubber ring seal respectively the air inlet and outlet of the casing. The joining seal ring is adhered in between the edge of the former air cock and the circular lobe at lower part of the casing. The invention can be installed on an existing air cock, and can timely reduce the pressure in the tyre, stop any tyre explosion due to increased air pressure in the tyre.

The invention provides a wheel driving system, comprising: an in-wheel motor, a braking device, a wheel and a tire profile measuring device, wherein the wheel includes a rim and a hub disc, and the inner cavity of the rim is divided into two disconnected parts by the hub disc. The in-wheel motor is installed in one of the chambers, the brake device is installed in the other chamber, and the tire profile measurement device is installed on the side of the wheel to measure the axial deformation of the tire side profile, and then identify the Whether the tire has a standing wave phenomenon, remind the driver to take protective measures in time, so as to avoid tire blowout accidents and improve vehicle driving safety.

The invention discloses a tire temperature and pressure monitoring system, which comprises a receiver, wherein the receiver is connected to a display through a CAN bus; the receiver is connected to a repeater; the receiver is respectively connected to a sensor I and a sensor IV; the repeater is respectively connected to the sensor I, a sensor II, a sensor III and the sensor IV; and the sensors acquire the air pressure and temperature of a tire and send the air pressure and temperature to the repeater / receiver through an RF mode, and the receiver receives the tire pressure data and then directly displays the tire pressure data on a display screen of the original vehicle through the CAN bus.

The invention relates to an accessory for automobiles, in particular to an universal anti-explosive air cock for automobile tyres, which comprises an air cock drum and a rubber casing of a former air cock, an additive air cock threaded with a former air cock drum, an air cock cap with a vent connected with the additive air cock, a seal ring in the additive air cock, an exhaust seal ring at the upper part of the seal ring, a joining seal ring at the lower surface of the seal ring, a rod sleeve in an air-sealing ring, an anti-air-exhaust spring looped on the rod sleeve, a pressure rod in the rod sleeve, a rod cap welded with the top end of the pressure rod, an air-sealing bowl located at middle of the pressure rod and integrated with the pressure rod, an anti-air-charging spring below the air-sealing bowl, an air-charging ring adhered in the air-sealing bowl and a pressure-adjusting nut looped on the rod sleeve. The invention can both charge air and automatically discharge air so as to reduce pressure, and can allow non-professional technical persons to rebuild existing air cocks. The invention is highly universal.

Disclosed are an airplane brake system and a static brake protection control method. When a simulated airplane speed is lower than a preset static brake control secure threshold, an antiskid control box enables a static brake protection relay to be connected, and otherwise, the antiskid control box enables the static brake protection relay to be disconnected; the static brake state of an airplane is determined according to on-off signals of the static brake protection relay; aerial / ground states of the airplane are determined through a first landing switch and a second landing switch; and a static brake subsystem achieves the function of airplane static brake protection through the special control logic according to the speed state and the aerial / ground states of the airplane. The static brake function and the ground connection protection function of the airplane are separated thoroughly, the problem that the static brake subsystem outputs the static brake pressure under the condition that the ground connection protection function of the airplane loses efficacy is solved, and meanwhile the situation that when the airplane lands, the static brake pressure is output due to the fact that a pilot mistakenly pulls a static brake switch, and consequently, the tire bursting accident of brake mainframe wheels occurs is avoided.

The invention discloses a tire blowout emergency system, comprising: a tire blowout emergency device, an early warning device and a relay; the tire blowout emergency device is arranged in a wheel groove of a rim; the early warning device is arranged on an operating instrument panel; the relay is arranged on a cross beam of a chassis and is used for receiving wireless signals sent by a transmitterand transmitting the signals to the early warning device in a wired manner. The tire blowout emergency system has the advantages that steering and brake system controllability can be guaranteed in case of tire blowout of a vehicle, vehicle side slide and roller can be effectively avoided, and the safety is high; early warning can be provided, and chances for vehicle tire blowout can be effectivelydecreased.

The invention relates to a process for achieving temperature resistance upgrade of a car wheel. The process comprises the following steps of removing the car wheel; disassembling the car wheel into a hub and a tire; cleaning the inner wall of the tire; spraying a polymer hot-melt self-closing and repair memory adhesive layer on the inner wall of the tire of the car wheel; assembling the car wheel; inflating the car wheel with inert gas; balancing the car wheel; installing the car wheel, wherein the polymer hot-melt self-closing and repair memory adhesive comprises the following components by weight percent: (1) 40-60% of thermoplastic elastomer; (2) 34-51% of tackifier; (3) 5-8% of softener; (4) 0.5-1.5% of anti-aging agent and / or antioxidant. By adopting the process, the car wheel can be upgraded to a security car wheel which can normally operate at minus 40 DEG C to 120 DEG C and is bullet-proof inside, explosion-proof and resistant to puncture.

The invention provides a self-inflating constant-pressure tire burst prevention system, and belongs to the technical field of machinery. The tire burst prevention system solves the problem that an existing tire burst prevention system cannot avoid tire burst accidents due to the fact that the reserve amount of gas is limited. The self-inflating constant-pressure tire burst prevention system comprises a vehicle centralized controller, an execution mechanism, a detection assembly and inflation assemblies fixed to all tires of a vehicle. The detection assembly is electrically connected with the vehicle centralized controller; the inflation assembly comprises a cylinder body and a piston connected into the cylinder body in a sliding mode. An inner cavity of the cylinder body is divided into acompression cavity and an air inlet cavity communicated with the outside by the piston; the cylinder body is fixed on a hub of a corresponding tire, the compression cavity is communicated with the corresponding tire through an inflation one-way valve, the piston is further provided with an air inlet one-way valve which is communicated with the air inlet cavity and the compression cavity in a one-way mode, and the actuating mechanism is electrically connected with the vehicle centralized controller and can control the piston to slide back and forth. According to the system, early warning and control are combined with elimination of dangerous case relevance protocols, tire burst accidents are avoided, and the life safety of passengers is guaranteed.

The invention relates to an accessory for automobiles, in particular to an universal anti-explosive valve inside for automobile tyres, which comprises a rod, a propelling spiral, a rod sleeve, an anti-air-exhaust seal ring, an air exhaust pipe, a joining seal ring, an anti-air-exhaust spring, an anti-air-charging seal ring, a circular rubber bowl, an anti-air-charging spring and an air cock cap with a hole. The rod is in the rod sleeve, which is in the exhaust pipe; the anti-air-exhaust seal ring is adhered to the lower surface of the edge at upper end of the rod sleeve, the anti-air-exhaust spring is looped on the rod sleeve; the anti-air-charging spring is looped on the rod sleeve; the bottom end of the rod sleeve has a circular conical surface, the lower part of the rod sleeve has a clasp; at the upper port of the exhaust pipe, a circular conic surface is provided. At using, the valve inside of the former air cock is screwed out, and the valve inside of this invention is screwed in. The invention can both charge air and automatically discharge air so as to reduce pressure, and can allow non-professional technical persons to use on existing tyres. The invention is highly universal.

The invention discloses a tire outer wall intact degree identification method based on a convolutional neural network. The method comprises the following steps: firstly, obtaining and carrying out image preprocessing on a tire outer wall image of which the damage is classified; then, an asymmetric convolution structure is constructed directly based on a DenseNet neural network model; constructing a feature fusion module to fuse target features of different levels, and inputting and fusing the tire outer wall image into a DenseNet neural network model; training, verifying and testing the DenseNet neural network model by the tire outer wall image in the DenseNet neural network model through a training strategy of 10-fold cross check; and finally, optimizing a cross entropy cost function by using an Adam algorithm, and optimizing the DenseNet neural network model. Testing is completed in the driving process, the testing efficiency is improved, the integrity of the outer wall of the tire can be quantified and judged, and the outer wall of the tire is recognized through an algorithm to screen out manual errors.

A tire condition evaluation method implemented by a tire condition evaluation system includes (A) obtaining tire condition data relating to a tire of a vehicle and route data generated based on an electronic map and including a pre-planned route. And (B) calculating an abrasion prediction result at least according to the route data, wherein the abrasion prediction result indicates the abrasion degree of the tire caused by the vehicle running along the pre-planned route. And (C) generating an evaluation result according to the wear prediction result and the tire condition data, wherein the evaluation result is related to the risk degree that the tire is used for driving the vehicle along the pre-planned route.