78results about How to "Reduce safety hazards" patented technology

A method for casing job by using a top drive drilling unit is applied to the petrol cementing technique field, and is characterized in that a casing elevator is used for lifting a single casing which is buckled with a casing string oppositely; a top-driven casing device is driven to tightly clamp the single casing; the top drive drilling unit is driven to revolve, which allows the single casing to be connected with the casing string; an air slips of a drill stand is loosed, which allows a top-driven flying ring and the casing elevator to support the single casing and the casing string; the single casing and the casing string are lowered; the air slips of the drill stand is used for fixing the single casing; slurry is poured to the interior cavities of the single casing and the casing string through a chief axis hydrophthalmia of the top drive drilling unit and a central spindle hydrophthalmia of the top-driven casing device; and finally, all the casing strings are lowered to the well bottom. The method has the advantages of reducing working equipments, simplifying working process, being capable of revolving casing string and cycling slurry timely according to the actual needs, increasing the automatic degree of the casing job, and improving the production efficiency and safety.

The invention discloses a tissue culture and rapid propagation method of nobile-type dendrobium seedlings. The method comprises the following steps of: (1) selection and disinfection of an explant; (2) induction culture of protocorm; (3) proliferation and differentiation of protocorm; (4) strong seedling and rooting culture; (5) transplanting of test-tube plantlets. According to the method, tissue culture and rapid propagation of the nobile-type dendrobium seedlings are carried out by the method provided by the invention, the culture procedure is simple, the explant is free of pollution, the propagation coefficient is large, the production cost is low, the seedlings are high in quality, and the defects of low propagation coefficient and the like in the prior art are overcome.

The invention discloses a manufacturing method of a grade-A2 fireproof aluminum composite plate. The grade-A2 fireproof aluminum composite plate is manufactured from 83kg-93kg of calcium carbonate, 130kg-142kg of silicon micro-powder, 87kg-97kg of quartz sand, 10kg-15kg of pearlite, 7kg-12kg of polypropylene staple fiber, 40kg-50kg of silicon dioxide, 58kg-67kg of aluminium hydroxide, 12kg-27kg of zinc molybdate and 135kg-145kg of acrylic based emulsion. The method comprises the following steps of: 1, preparing materials; 2, discharging and pasting non-woven fabrics; 3, roasting, stripping the non-woven fabrics and rolling; 4, cooling, grinding, gluing and roasting; and 5, adhering, cooling and shearing. By adopting the manufacturing method of the fireproof aluminum composite plate, liquid materials are roasted into a solid state to form the core materials through roasting for eight times by an oven and rolling by a rolling mill, and the core materials and the aluminum plate are difficult to delaminate under the high-temperature condition, and the fireproof intensity is improved.

The invention discloses a double-cooling radiation test system and method. The double-cooling radiation test system is formed by a main cooling system, a water sleeve cooling system, a secondary cooling system, and matched purification and water supplementary systems. The main cooling system is a high-temperature high-pressure circuit and can be operated independently; the water sleeve cooling system belongs to a low-temperature low-pressure circuit and can be operated independently; the main cooling system and the water sleeve cooling system can be operated in parallel at the same time. The main cooling system and the water sleeve cooling system carry out independent cooling cycle flowing, heat generated in a pressure pipe is carried out by main cooling water, and heat generated outside the pressure pipe is discharged out by water sleeve cooling water. Otherwise, the main cooling system is static or microflows, and heat inside and outside the pressure pipe is carried away through thecircular flow of the water sleeve cooling system. The double-cooling radiation test system and the method provided by the invention are applied to a nuclear material and fuel element in-pile steady-state irradiation test, a power transient test, a fuel damage test, an in-pile water chemical corrosion test, isotopic irradiation production and the like.

The invention discloses a perpendicularity measuring device and method of a telescopic hack lever plumb bob. The perpendicularity measuring device the telescopic hack lever plumb bob comprises a base, a telescopic rod and a plumb bob, a winder is arranged on the telescopic rod, scales are arranged in the length direction of the telescopic rod, the lower end of the telescopic rod is connected to the base, the upper end of the telescopic rod is provided with a transverse rod perpendicular to the telescopic rod, a pulley set is arranged on the transverse rod, a track and a graduated scale are arranged in the length direction on the transverse rod, the pulley set is arranged on the track and can move along the track, the plumb bob is connected to one end of a string and is freely hung downward, and the other end of the string is wound around a fixed pulley set, routed along the telescopic rod and connected to the winder. The perpendicularity measuring device of the telescopic hack lever plumb bob is simple in structure and convenient to operate, the measurement of the perpendicularity can be finished at the bottom of a building component, safety hidden dangers are sharply reduced, the detection precision is improved, and the device can be applicable to measurement of different heights.

The invention relates to a high temperature melt discharge pipe and a smelting furnace with the same. A tubular structure like a submerged bend is processed through high temperature resistant materials, a medium-frequency power supply coil winds on the outer wall of the submerged bend, and one end of the submerged bend is communicated with a discharge port arranged at the bottom of the smelting furnace. Melt deposited at the position of the submerged bend is cooled and solidified and blocks a discharge channel of the smelting furnace during smelting, and after smelting is finished, the medium-frequency power supply coil located on the outer side of the submerged bend is electrified, the condensed materials at the position of the submerged bend is subjected to heating and melting, accordingly melt in the smelting furnace is discharged through the high temperature melt discharge pipe, melt and the inner wall of the furnace do not contact with the air, and further potential safety hazards are reduced.

A ballast circuit for a discharge lamp capable of protecting the circuit when the lamp reaches its end of life with a cost effective circuit arrangement. The circuit includes a DC voltage sensing network for sensing a DC voltage which appears as a consequence of the lamp reaching its end of life. Upon the sensed DC voltage exceeding a threshold, a control is made to limit or stop supplying an output power to the lamp for protecting the ballast circuit from an otherwise generating excessive current. The sensing network is composed of a DC sensing capacitor and a resistor which are connected in circuit outside of a resonant circuit responsible for generating a high frequency voltage to operate the lamp. Thus, the DC sensing capacitor can be kept free from the high voltage generated by the resonant circuit and be of less cost for reducing a manufacturing cost.

The invention relates to a tissue culture and bud induction method for peonies, which is characterized in that the method comprises the following steps: a. peony plants are processed with bactericide, and filled with substrate, kept wet with plastic foil and refrigerated; b. when dormancy of peonies is about to be relieved, outer leaves of bulbils are removed, and the peonies are disinfected and washed by sterile water; c. the bulbils are peeled in an aseptic environment, 2-4 small leaves at basal part of the bulbils in buds and tips of upper leaves in buds are cut off, and the remainder parts are inoculated in solid substrate to be cultured; d. after inoculation the explants are placed in an environment with culture temperature in the range from 23 to 27 DEG C and with certain illumination to be cultured to form aseptic buds. The invention is characterized by easy disinfection, little pollution of mixed bacterium, and a rapid speed to obtain peony aseptic buds.

The invention belongs to the technical field of electrical control and relates to an intelligent operation and maintenance platform system for a subway station. The intelligent operation and maintenance platform system comprises monitoring objects, a monitoring device, a control center and an execution device. The monitoring objects comprise roller shutter doors, escalators and red flashing lamps,wherein the roller shutter doors and the escalators are internally provided with execution mechanisms respectively. The monitoring device monitors the monitoring objects and transmits monitoring information to the control center. The control center performs data processing and sends an instruction to the execution device. The execution device controls the working states of the monitoring objectsaccording to the instruction. According to the intelligent operation and maintenance platform system for the subway station of the invention, the roller shutter doors, the escalators and the red flashing lamps at a plurality of positions are remotely controlled in a centralized manner through an industrial personal computer; automatic control or manual remote control is realized; and the executionmechanisms of the roller shutter doors and the escalators (mechanical movement parts) can be monitored in real time, so that preventive repair is realized.

The invention discloses an insufficient voltage activating device for a lithium battery and relates to the technical field of lithium battery charging equipment. The insufficient voltage activating device comprises a lithium battery charging management IC (integrated circuit) and an activating circuit, wherein the activating circuit comprises an MCU (micro control unit) and a current-limiting float charging circuit, wherein a control output pin I / O of the MCU is connected with the enabled pin EN of the lithium battery charging management IC, and a third analog quantity input pin AD3 of the MCU is connected with the lithium battery and used for detecting the voltage of the lithium battery; one end of the current-limiting float charging circuit is connected with a power Vin, the other end of the current-limiting float charging circuit is connected with the lithium battery, and a current control end used for controlling the magnitude of current outputted by the current-limiting float charging circuit is connected with an analog quantity output pin DA of the MCU. The insufficient voltage activating device solves the technical problem in the prior art that a lithium battery is inconvenient to activate in the insufficient voltage state. The insufficient voltage activating device can activate the lithium battery in the insufficient voltage state, has high safety and reliability, facilitates prolonging the service life of the lithium battery, and is low in price.

The invention relates to a material hoister for constructional engineering. The material hoister for constructional engineering relates to the technical field of constructional engineering equipment, and comprises a rack, a top beam, a first driving wheel, a second driving wheel, a steel wire rope, a first hanging basket, a positive and reverse rotation motor and a second hanging basket, wherein the top beam is arranged on the top part of the rack through fixed bolts; the first driving wheel and the second driving wheel are sequentially embedded in the top beam; the second driving wheel is connected with a rotary shaft of the positive and reverse rotation motor; the positive and reverse rotation motor is arranged on the top beam through fixed bolts; one end of the steel wire rope is connected with the first hanging basket; the other end of the steel wire rope respectively penetrates through the first driving wheel and the second driving wheel so as to be connected with the second hanging basket. The material hoister for constructional engineering is simple in structure, reasonable in design and convenient to be operated, and the collision during the hoisting process can be effectively avoided, so the potential safety hazard is eliminated, and the working efficiency can also be improved, and the working progress is accelerated.

The invention discloses a special vacuum cleaner for cleanness of electric equipment. The special vacuum cleaner comprises a body, wherein a filter net cover clamping buckle, an insulated handle and a dust collecting barrel dismounting button are mounted on the front surface wall of the body from top to bottom sequentially, the rear surface wall of the body is connected with a power cord, a suction nozzle releasing button is fixed on the front surface wall of a detachable suction nozzle, a dust collecting barrel is arranged in the body, an outer filter and an inner filter net are placed in the dust collecting barrel, an inner air inlet assembly is fixed below the inside of the dust collecting barrel, an air suction motor is connected to the upper surface wall of the air suction fan, the air suction motor and the body are fixedly connected through hollowed-out motor support frames, and an HEPA (high efficiency particulate air filter) filtering net is mounted above the air suction motor and fixedly connected with the body through an HEPA filter net cover. Three filtering layers are arranged inside, sucked electrical equipment dust can be more thoroughly isolated, and meanwhile, the electric equipment can be more easily cleaned by means of a brush.

The invention relates to a short message returning processing method for a remote control system. The remote control system comprises a sending device, a first communication gateway, a second communication gateway and a receiving device, wherein the sending device is connected with the first communication gateway; and the receiving device is connected with the second communication gateway. When the sending device transmits the short message to a far-end receiving device through a mobile communication network, the second communication gateway transmits a reply signal to the sending device after the receiving device receives the short message; if the sending device does not receive the reply signal within predetermined time, the receiving device is judged not to smoothly receive the replay signal, and the second communication gateway can transmit the replay signal again at the time or notify a manager; when the second communication gateway receives the short message, whether the short message is effective or not is judged; and if the short message is ineffective, the short message is stopped being transmitted to the receiving device. The invention can reduce the property and life injury of enterprises and personnel due to short message loss; and in addition, the gateways can prevent the conditions that repeated packets are continuously sent due to the failure of the sending device or the receiving device is occupied in bandwidth by an unknown short message due to hacker invasion.

The invention relates to a vehicle-mounted multimedia terminal and a conversation method thereof, a vehicle-mounted multimedia communication system and a vehicle, which belong to the field of vehicles, and can achieve an independent WeChat voice video chat on a vehicle-mounted end. The vehicle-mounted multimedia terminal includes a first receiving module, a processing module, a first sending module, a second receiving module, and a second sending module. The first receiving module is used for receiving voice and / or video of a conversation on the vehicle-mounted end; the processing module is used for processing the voice and / or the video received by the first receiving module; the first sending module is used for sending the voice and / or the video received by the first receiving module processed by the processing module to an opposite end of the conversation; the second receiving module is used for receiving the voice and / or the video from the opposite end of the conversation; the processing module is further used for processing the voice and / or the video received by the second receiving module; and the second sending module is used for sending the voice received by the second receiving module processed by the processing module to a voice playing device.

The invention discloses a coin liner of a bus money box and particularly relates to a bus money-box coin liner with a built-in cover board. The bus money-box coin liner comprises a shell 1, the cover board 2, a guide rail slot 3, a control circuit board 4, a motor assembly 5 and a gear module 6. The bus money-box coin liner has the advantages that 1, the cover board is arranged inside the coin liner and is controlled by an internal transmission mechanism, so that when a worker wants to take the coin liner, the cover board does not need to be inserted manually from the outside and after a box door is opened, the internal transmission mechanism closes the cover board, and similarly, when coins are taken at a casher center and after the box door is unlocked, the internal transmission mechanism opens the cover board and the cover board does not need to be operated by an external force, as a result, the operation process is reduced, the operation link is simplified and workload of the worker is reduced; and 2, the cover board is arranged inside the coin liner and a motor is matched with the transmission mechanism, so that the worker has no chance to contact the cover board at all, and the potential safety hazard link is reduced, safety performance of the product is greatly improved and safety guarantee is provided for casher management of bus companies.

An automatic-lightening vehicular graphic display system based on an LED screen comprises a function selection module, a control module, an LED display screen control card, the LED screen, an automobile support, a control box and a photosensitive sensor, the control box is arranged in the automobile, the function selection module and the control module are arranged in the control box, the automobile support is fixed outside the automobile, the LED screen is arranged on the automobile support, and the LED screen is provided with the display screen control card capable of automatically adjusting luminance of the LED screen, and the photosensitive sensor is arranged outside the automobile. The function selection module transmits key input signals to the control module according to users' input; the control module processes the key input signals so as to enable the LED screen to transmit graphic display signals. The photosensitive sensor transmits light strength feedback signals to the control module according to the sensed light strength outside of the automobile. The control module transmits luminance adjustment signals to the LED display screen control card according to the light strength feedback signals, and the LED display screen control card can adjust luminance of the LED screen according to the luminance adjustment signals.

A method for casing job by using a top drive drilling unit is applied to the petrol cementing technique field, and is characterized in that a casing elevator is used for lifting a single casing which is buckled with a casing string oppositely; a top-driven casing device is driven to tightly clamp the single casing; the top drive drilling unit is driven to revolve, which allows the single casing to be connected with the casing string; an air slips of a drill stand is loosed, which allows a top-driven flying ring and the casing elevator to support the single casing and the casing string; the single casing and the casing string are lowered; the air slips of the drill stand is used for fixing the single casing; slurry is poured to the interior cavities of the single casing and the casing string through a chief axis hydrophthalmia of the top drive drilling unit and a central spindle hydrophthalmia of the top-driven casing device; and finally, all the casing strings are lowered to the well bottom. The method has the advantages of reducing working equipments, simplifying working process, being capable of revolving casing string and cycling slurry timely according to the actual needs, increasing the automatic degree of the casing job, and improving the production efficiency and safety.

The invention belongs to the technical field of electrical control and particularly provides a visual centralized control roller shutter door system which is used for automatically opening / closing a roller shutter door of an entrance of a subway station, realizing preventive overhauling of a roller shutter door actuator and providing early warning of passenger flow volume. The system is characterized by comprising a video camera, a roller shutter door drive controller, a sensor, a super-brain NVR (hard disk video), a roller shutter door actuator, a network switch, an upper computer, SMS (shortmessage service) and Email and cloud service. Aiming at the number of passengers in the subway, the system performs statistical analysis for the passenger flow volume by the video camera and the super-brain NVR, a risk response mechanism is provided, and crowded stampede accidents are avoided. By means of repeated research and field debugging, the visual centralized control roller shutter door system is developed. Therefore, labor intensity of a worker of the station is reduced, and worker focuses on other more important operation work, and the purpose of safe and timed operation is achieved.

The invention relates to the field of construction equipment, in particular to a gravity type laser perpendicularity and aperture detector. The detector comprises a supporting rod capable of being placed horizontally and a rotary arm, wherein a level bubble is arranged on the top of the supporting rod, one end of rotary arm is hinged to the middle of the supporting rod, the rotary arm rotates on the horizontal plane when the supporting rod is placed horizontally, and an emission head used for emitting light towards the gravity direction is arranged on the rotary arm. By the adoption of the portable gravity type laser perpendicularity and aperture detector, perpendicularity and aperture during manual hole digging pile body pore-forming can be detected conveniently and efficiently, and potential operation hazards are reduced.

The invention relates to a multifunctional, smart and fashionable down garment. The multifunctional, smart and fashionable down garment comprises a garment body, wherein a wearable GPS alarming device is arranged on the garment body and connected with a mobile phone APP; the wearable GPS alarming device comprises an alarm, a multifunctional button, a loudspeaker and a microphone are arranged on the front side of the alarm, a smart GPS alarming chip electroplate is mounted on the back surface of the alarm through a waterproof adhesive bottom plate, and a charging socket is arranged on the alarm. Graphene fabric is arranged at shoulder parts and / or waist part of the garment body and spliced with lining of the garment body. The multifunctional down garment is formed by combining advantages of the wearable GPS alarming device and the graphene fabric and adopting small and exquisite functional structure design.

The invention discloses a wear-resistant engineering plastic and a preparation method thereof. The wear-resistant engineering plastic is prepared from, by weight, 65-75 parts of unsaturated polyester,60-80 parts of polyethylene glycol terephthalate, 15-35 parts of semi-aromatic nylon PA6T, 10-12 parts of polytetrafluoroethylene, 10-20 parts of potassium titanate whisker reinforcement, 3-5 parts of a butyl tin mercaptide stabilizer, 1-5 parts of an additive, 0.6-1.8 parts of a coupling agent, 0.2-0.5 part of an antioxidant and 0.7-2.5 parts of a lubricant, and the lubricant is one or a composition of more of liquid paraffin, polyethylene wax and glyceryl monostearate. The invention relates to the technical field of engineering plastic products. The raw materials in the wear-resistant engineering plastic and the preparation method thereof are reasonably proportioned, the prepared engineering plastic is remarkable and durable in wear-resistant effect, excellent in mechanical property andbetter in effect of being matched with a polytetrafluoroethylene coating for use, and after the engineering plastic is prepared into engineering parts, the loss of the engineering plastic is small, and the performance change is small in a complex working environment.

The invention discloses an energy storage technology battery grouping system. The system comprises an outer frame, a battery management module, an inner frame and a battery pack module, wherein a bottom plate is fixedly mounted at the bottom in the outer frame; a mounting shell is fixedly mounted at the top end of a detection base; a battery placement groove is formed in the mounting shell; a single battery pack is mounted in the battery placement groove; and the battery management module is fixedly mounted on one side of the outer frame. According to the energy storage technology battery grouping system, the inner frame is arranged in the outer frame, a battery pack module which can be movably taken is arranged in the inner frame, the use is simpler and more convenient, the battery pack module is conveniently matched with a pressing plate and a mounting connector, the wire is enabled to be away from the battery pack during wiring, and safety hazards are reduced. In the charging and discharging process of the battery pack module, a current equalizer is used for equalizing the current of the battery pack, the BMU receives the information of the battery pack, and when the battery pack modules are inconsistent, the battery pack modules are equalized through the equalizer.

The invention relates to the technical field of fusion reactions, and provides a connecting joint, a toroidal field coil and a fusion reaction device. The connecting joint comprises a first joint body and a second joint body, wherein the first joint body and the second joint body are connected through a plurality of flexible conductive bands arranged at intervals, and the length of each flexible conductive band is larger than the distance between the end, close to the corresponding flexible conductive band, of the first joint body and the end, close to the corresponding flexible conductive band, of the second joint body. The toroidal field coil comprises a central column, an outer arm and a connecting joint. The fusion reaction device comprises a plurality of turns of toroidal field coils. According to the invention, the connecting joint comprises flexible conductive bands, a first joint body and a second joint body, the length of the flexible conductive band has a certain allowance, and when a central column and an outer arm generate relative displacement, the shape of the flexible conductive band is correspondingly changed, so that the connecting joint adapts to position change when the outer arm generates displacement relative to the central column, the joint is prevented from being damaged and safety risks are reduced.

The invention discloses an elevator steel wire rope anomaly detection method, device and equipment and a readable storage medium. A sensor is arranged close to a steel wire rope, and the method comprises the following steps that detection data is collected through the sensor; the detection data is acquired, whether the detection data is abnormal data or not is judged; and the state of the elevatorsteel wire rope is judged according to the judgment result of the detection data in combination with a preset data learning library. According to the elevator steel wire rope anomaly detection method, device and equipment and the readable storage medium, the state of the elevator steel wire rope can be effectively grasped all the time, and potential use safety hazards of an elevator are reduced.

The invention discloses special equipment for internal space construction of a cylinder and a dome, and belongs to the field of buildings and industrial construction. The special equipment comprises ahandrail, a boom, a cantilever crane, a working platform, an amplitude change device, a climbing device, a tower and a revolving device; the cantilever crane is mounted on the working platform or theboom; the handrail and the working platform are mounted on the boom; the boom is mounted on the tower; the amplitude change device is mounted between the boom and the tower; the climbing device is mounted between the boom and the tower; and the revolving device is mounted on the tower. The special equipment can be used for construction of internal space of cylinder and dome buildings or equipment; and constructors or equipment can reach all construction points in the internal space of the cylinder and the dome for construction, so that needed engineering mechanical equipment in the construction operation is reduced, operators are reduced, the construction cost can be effectively reduced, the construction process is improved, the construction efficiency is improved, potential safety hazardfactors are reduced, and the construction safety is improved.

The invention discloses a watch lens polishing device. The watch lens polishing device comprises a workbench, a cooling water pipe, a second guiding module and a mechanical turntable; a liquid discharging groove is formed in the upper end surface of the workbench, a first guiding module is fixedly mounted on the side of the workbench, the cooling water pipe is arranged on the upper end surface ofthe workbench, and a nozzle is fixed at the pipe end of the cooling water pipe; and a moving block is connected with a fixing block through a connecting rod, half round rings are mounted at the upperends of the moving block and the fixing block, a fixed support is arranged at the upper end of each half round ring, a rubber cushion is laid on the inner side of each fixed support, the second guiding module is arranged on the first guiding module, a guiding sliding block is mounted on the second guiding module, the mechanical turntable is fixedly connected to the bottom of the guiding sliding block, and a control panel is arranged on the side of the workbench. By means of the watch lens polishing device, the lens can be fixed and used conveniently, and the labor force consumption during lenspolishing and safety hidden dangers during polishing are reduced.

The invention discloses a pitaya gene HuAAE3 and application thereof in regulating and controlling high temperature stress resistance of plants, the nucleotide sequence of the pitaya gene HuAAE3 is shown as SEQ ID NO.1 or is a sequence completely complementarily paired with the SEQ ID NO.1, and the coded amino acid sequence of the pitaya gene HuAAE3 is shown as SEQ ID NO.2. The invention further discloses a preparation method of the pitaya gene HuAAE3. Research finds that the oxalyl-coenzyme A synthetase AAE3 of the plant expressed by the dragon fruit HuAAE3 gene participates in heat stress response, which is of great significance to comprehensive understanding of biological functions of the oxalyl-coenzyme A synthetase AAE3 in the plant. Meanwhile, the HuAAE3 gene is over-expressed by the inventor through a transgenosis method, and along with the increase of the expression quantity of the HuAAE3 gene, the resistance of arabidopsis thaliana to high temperature is improved. Therefore, the dragon fruit HuAAE3 gene and the corresponding protein can be applied to genetic engineering genetic breeding of crops, high-temperature-resistant crop varieties are cultivated, safety hazards caused by high temperature to food crops are reduced, and the dragon fruit HuAAE3 gene and the corresponding protein have important reference significance for related research on high-temperature tolerance of other crops.

The invention provides a hydraulic shock-absorbing tire, comprising: an outer tire and an inner rim, the outer tire is covered and fixed on the inner rim, the inner side of the outer tire is provided with an anti-shift groove, and both sides of the outer tire are provided with screw holes; The rim is provided with a hydraulic pump, an oil delivery pipe, and a fixing ring from the inside to the outside. There are screw holes on the fixing ring. There are hydraulic rods on both sides of the inner rim. The hydraulic pump is connected to the oil delivery pipe. On the fixing ring, the bottom of the hydraulic rod is fixed on the oil delivery pipe, the top of the hydraulic rod and the top of the hydraulic rod on the other side of the inner rim are fixed on the anti-shift plate, and the oil delivery pipe connects the hydraulic cylinder of each hydraulic rod and the hydraulic pump together, the present invention It can effectively prevent tire bursting, reduce various safety hazards, no need to repair tires, no need to inflate, not afraid of puncture pressure, tire breakage can still drive, it can drive under bad road conditions, open flames, etc., strong and durable, reduce manufacturing Cost, prolong service life, good shock absorption effect.

The invention discloses a gas safety shield system of a hydrogen refueling station. The gas safety shield system comprises a hydrogen micro-leakage monitoring and early warning module, a hydrogen medium leakage monitoring and alarming module, a hydrogen high leakage monitoring and alarming module, a three-stage alarming system, a feedback processing system and a central control platform; the hydrogen micro-leakage monitoring and early warning module comprises a hydrogen-sensitive color change sensing patch adhesive tape, a camera and an AI big data platform, and is linked with the three-stage alarm system; the hydrogen medium leakage monitoring and alarming module comprises a fixed electrochemical principle hydrogen detector and a hydrogen alarming controller, and is linked with the three-stage alarming system and the feedback processing system; and the hydrogen high leakage monitoring and alarming module comprises a fixed combustible gas detector based on a catalytic combustion principle, and is linked with the three-stage alarming system and the feedback processing system. The gas safety shield system of the hydrogen refueling station provided by the invention has the characteristics of wide leakage monitoring coverage range, high automation degree, safety, high efficiency, three-dimensional and comprehensive monitoring data and graded alarm function.