31results about How to "Affect life safety" patented technology

The invention provides a flame-retardant butadiene-styrene rubber formula which comprises the following raw materials in weight part: 70-80 parts of butadiene-styrene rubber, 15-20 parts of antimony trioxide, 25-30 parts of chlorinated paraffin, 10-15 parts of white carbon black, 3-5 parts of a vulcanizing agent, 15-18 parts of calcium carbonate, 5-8 parts of an anti-aging agent and 15-30 parts of dibutyl phthalate, wherein the anti-aging agent in the flame retarded butadiene-styrene rubber formula is 1,4-benzenediamine N,N'-mixed phenyl and tolyl derivs. The rubber produced through the formula provided by the invention has a good flame-retardant effect, and cannot produce poisonous gas in case of fire, and avoids secondary damage, so that life safety of people is ensured.

The invention discloses a crush-resistant quake-proof protective office table, which comprises a table board and a table frame in a cubic structure. A supporting plate comprises two connection plates,a rubber plate and reinforcing ribs and is fixedly connected above the table frame, the two connection plates in vertical arrangement is uniform in size, the rubber plate is fixedly connected betweenthe two connection plates, the reinforcing ribs in triangular structures are arranged in the rubber plate between the two connection plates, and at least four supporting devices are fixedly mounted above the supporting plate. By the supporting structures between the table board and the table frame, impact caused by building falling to the office table can be buffered in earthquake, influences onlife safety of people under the table due to falling apart of the office table are avoided; by the supporting plate, structural stability of the table frame can be improved, and the table frame is protected from damages; by fixing rods, table legs can be protected from being broken, and stability of the office table is improved.

The invention discloses an acid liquor filtration and neutralization device for a yellow phosphorus tail gas boiler. The device comprises a device bottom, side plates and an air inlet, wherein the upper portion of the device bottom is provided with a bearing plate, the lower portion of a water outlet pipe is provided with a water pump, a gas guide pipe is arranged above the water outlet pipe, theouter side of an air outlet pipe is provided with a cover plate, the lower portion of a water inlet pipe is provided with a fixing block, the left side of a first gear is provided with a second gear,the side plates are respectively arranged at the two sides of the device bottom, the upper portion of a spring is provided with a supporting plate, the left side of the air outlet pipe is connected with a filtration plate, the outer side of the filtration plate is provided with a gas purifying bottle, the left side of the gas purifying bottle is provided with a handle, the lower portion of a supporting rod is connected with a baffle, and the air inlet is formed in the left side of the baffle. The acid liquor filtration and neutralization device for the yellow phosphorus tail gas boiler has theadvantages that the purification efficiency of the yellow phosphorus tail gas is significant, the yellow phosphorus tail gas can be fully neutralized, the material produced after neutralization can be cleaned up in time, and the waste of resources is avoided.

The invention relates to butadiene styrene rubber. The butadiene styrene rubber comprises the following raw materials in parts by weight: 70 to 80 parts of butadiene styrene rubber, 10 to 20 parts of natural rubber, 3 to 6 parts of polyoxypropylene glycerol ether, 25 to 30 parts of chlorinated paraffin, 10 to 15 parts of white carbon black, 3 to 5 parts of a promoting agent, 5 to 15 parts of an ethylene-propylene polymer, 3 to 5 parts of a vulcanizing agent, 15 to 18 parts of calcium carbonate, 5 to 8 parts of an anti-aging agent and 3 to 5 parts of a plasticizer. The butadiene styrene rubber is good in flame-retardant effect, no toxic gas is produced when in fire, the secondary harm is avoided, and the life security of people is not influenced.

The invention relates to an Ivc cage tool automatic water replenishing device. The Ivc cage tool automatic water replenishing device comprises a plurality of Ivc cage cases and a frame body, wherein aplurality of rows of accommodating cabinets for accommodating the Ivc cage cases are neatly arranged on the frame body from top to bottom; a drinking water bottle is arranged on each Ivc cage case inan inserting manner; a water transporting pipe for transmitting a water source is arranged on one side of the frame body; a water filling pipe extends from the water transporting pipe to each row ofthe frame body; each drinking water bottle comprises a water outlet end allowing an experimental animal to suck and a water inlet end for injecting water; a connecting pipe extends from each water filling pipe to the corresponding water inlet end, and communicates with the corresponding water inlet end to realize the conducting of the corresponding drinking water bottle to the corresponding waterfilling pipe; a plugging piece for automatically plugging each connecting pipe when water in the corresponding drinking water bottle is full is arranged in the corresponding water inlet end; and a separation piece for intermittently separating water flow in each water filling pipe is arranged at a joint of each water filling pipe and the water transporting pipe. The Ivc cage tool automatic water replenishing device disclosed by the invention is simple in structure and convenient in operation, and is suitable for most Ivc experiment occasions, and the problem that in the prior art, the drinkingwater bottles need to be repeatedly discharged for water replenishing is solved.

The invention discloses a portable type anti-corrosion electric tool. The portable type anti-corrosion electric tool comprises a hydraulic clamp body, a motor shell, a handle, a hydraulic motor, a tong head, a mold and a lithium battery, wherein the motor shell is fixedly arranged on one side of the hydraulic clamp body; the tong head is fixedly arranged on one side of the motor shell; the tong head is connected with one side of the motor shell through an adjusting nut; the handle is fixedly arranged at the bottom of the motor shell; the hydraulic motor is fixedly arranged in an inner cavity of the motor shell; an inner cavity of the tong head is detachably connected with the mold; the lithium battery is fixedly arranged on the bottom of the handle; a magnetic block is fixedly arranged onone side of the mold; and a barometer is fixedly arranged on the top of the motor shell. Through the magnetic block, dismounting and mounting are conducted effectively, the change of air pressure at the high altitude can be effectively monitored through the barometer, the hydraulic clamp body can be effectively prevented from falling off through a protection sleeve and a hanging buckle, the corrosion prevention capacity of the hydraulic clamp body can be effectively improved through an anti-corrosion film, and the service life is prolonged.

The invention discloses a basket for a building construction site. The basket comprises a supporting frame. The upper end face of the supporting frame is fixedly connected with an inverted-V-shaped protection cover. Two flying rings are evenly welded to the middle of the protection cover. The lower end face of the supporting frame is connected with a basket body. Falling prevention plates are symmetrically arranged on the two sides of the basket body. A bottom plate is arranged on the lower end face of the basket body. An escape device is fixedly connected to the middle of the bottom plate. A power source is arranged on the upper end face of the bottom plate. A protection door is arranged on one side of the basket body and is rotatably connected with the basket body through a pin shaft. A protection lock is fixedly mounted on the inner surface of the protection door. Four universal wheels are evenly and fixedly connected with the side, provided with the protection door, of the basket body. The basket is simple in structure, comprehensive in function, capable of effectively preventing objects falling from high altitudes from influencing safety of constructors below the objects, and capable of providing escape guarantee for constructors in the basket body.

The invention provides a ballast tank communication system which comprises a first suction port arranged in a ballast tank and a second suction port arranged in a cargo hold, the first suction port and the second suction port are connected through a valve, the valve is connected to a relay integrator, and the relay integrator is connected to power distribution control equipment in a cab and display control equipment in a safety room. A liquid level sensor connected with the relay integrator is arranged in the cargo hold. When the relay integrator receives the control commands of the power distribution control equipment and the display control equipment at the same time, the relay integrator sends the control command of the display control equipment. When the cargo hold is damaged and enters water, a sailor sends a control command to open the valve through the power distribution control equipment or the display control equipment, so that the cargo hold communicates with the ballast tank, the ship heeling angle is reduced, and ship sinking is delayed. As the command of the display control equipment is prior to the command of the power distribution control equipment, once the ship encounters pirates and the cargo hold is damaged simultaneously, the system can be controlled through the display control equipment to prevent the ship from overturning.

The invention discloses a liquid sample storage device for environmental monitoring, which comprises an oscillation reducing module, an environment adjusting module and a PH value adjusting module, damping mechanisms are mounted on two sides of a test tube support frame, the other ends of the damping mechanisms are fixedly connected with a storage box, and the environment adjusting module and a control unit are arranged on two sides of the test tube support frame. The environment adjusting module is used for adjusting the internal environment of the storage box, a timer is mounted in the control unit, and an oscillation reducing module is mounted at the top of the sampling test tube; according to the liquid sample storage device for environmental monitoring, the arranged vibration reduction module is used for sealing and transferring sampling test tubes, the situation that substances in liquid cannot be naturally precipitated due to shaking of the sampling test tubes during transferring is avoided, and the standing and precipitating time of collected samples is saved; a preservative is injected into liquid in the sampling test tube through the PH value adjusting module, so that the PH value is automatically adjusted, and the accuracy of detection data is ensured.

The invention belongs to the technical field of office systems, and particularly relates to an interactive office system based on the Internet, which comprises a monitoring module, an operation interface replacement module and a data statistics module; the monitoring module is used for monitoring the effectiveness of the customer service staff in processing the customer information; a classification unit is used for classifying the chat information between the client and the customer service staff; the sound unit is used for converting the consciousness with aggressiveness sent by the client into weak consciousness; the character unit and the picture unit are used for extracting characters with abuse or attack sent by a client and converting the characters into warm or comfortable characters and pictures; the data statistics module is used for carrying out statistics on product problems reflected by clients or problems which cannot be solved by customer service staff. Through the operation interface replacement module, the utterance with aggressiveness or abuse property sent by a client is converted into the utterance with comfortability or warmness, and the working enthusiasm of customer service personnel is improved.

The invention discloses an automobile bearing manufacturing device which comprises a bottom plate, a support body is fixed to the bottom plate, a grinding assembly is movably arranged on the support body and comprises a grinding disc capable of grinding a bearing, and the grinding assembly comprises a limiting assembly of a cooling motor. A three-jaw chuck used for fixing a bearing is arranged on the bottom plate and located under the grinding disc, an air blowing assembly is arranged on the bottom plate and located on one side of the support body, the air blowing assembly comprises an air outlet outer pipe and an air outlet inner pipe which are located between the three-jaw chuck and the grinding disc, and an air pump is further arranged on the bottom plate. According to the three-jaw chuck bearing polishing device, lifting of the polishing assembly is achieved by controlling the support body, polishing of a bearing in a three-jaw chuck by the polishing disc is achieved, airflow can be output to the rotating polishing disc through the air blowing assembly, and heat dissipation of the polishing disc and cleaning of polishing chippings are facilitated.

The invention relates to the technical field of masks, and discloses a windproof mask capable of preventing water mist in rainy days from affecting life safety of riders, the windproof mask comprises a mask body, a bidirectional driving motor is fixedly connected in the top of the mask body, and a driving rod is fixedly connected in the bidirectional driving motor, and one side, far away from the bidirectional driving motor, of the driving rod is fixedly connected with an eccentric cam. According to the windproof mask capable of preventing the water mist from affecting the life safety of the rider in the rainy day, a bidirectional driving motor is started, water drops attached to the outer wall of a transparent plate can be scraped off by a water scraping rod, and therefore the effect that the water drops condensed on the outer wall of a wind shield are automatically removed in the rainy day, and the observation sight of the rider is improved is achieved. A lifting rod periodically moves up and down under the action of a water scraping rod and a spring, a rotating rod can further drive fan blades to rotate, at the moment, wind generated by rotation of the fan blades can remove water mist generated in a transparent plate, and therefore the effects that water mist is prevented from being formed in the windproof mask, and the riding safety is improved are achieved.

The invention discloses a dry-wet combined multistage dust removal device which comprises a dust removal shell and is characterized in that a dust removal mechanism is arranged above the dust removal shell, a separation mechanism is arranged in the middle of the dust removal shell, the dust removal mechanism is connected with the separation mechanism through a pipeline, and a coal making mechanism is arranged below the dust removal shell; the coal making mechanism is connected with the separation mechanism through a pipeline, the dust removal mechanism comprises a water storage ball, a detection air bag is in transmission connection with the upper portion of the water storage ball, a pneumatic ring is arranged in the water storage ball, elastic pieces are arranged on the two sides of the interior of the pneumatic ring, and the detection air bag is connected with the pneumatic ring through a pipeline; and telescopic rods are arranged on the two sides of the surface of the pneumatic ring, one ends of the two sets of telescopic rods are fixed to the elastic pieces, and a liquid cavity is formed in the periphery of the outer portion of the pneumatic ring. The dust removal device has the beneficial effects of being high in practicability and capable of recycling pulverized coal and miscellaneous ore in a coal mine.

An Ivc cage automatic water supply device, comprising several Ivc cages and a frame body, the frame body is neatly arranged from top to bottom with several rows of storage cabinets for accommodating Ivc cages, the Ivc cages A drinking bottle is inserted on the top, and a water delivery pipe for transmitting water source is arranged on one side of the frame body. The water delivery pipe extends to each row of the frame body with a water injection pipe. The drinking water bottle includes a water outlet for the experimental animals to suck and a The water inlet end for pouring water, the water injection pipe extends to the water inlet end with a connecting pipe, the connection pipe communicates with the water inlet end to realize the conduction between the drinking water bottle and the water injection pipe, and the water inlet end is provided with a The water bottle is filled with water to automatically block the plugging part of the connecting pipe. The connection between the water injection pipe and the water delivery pipe is provided with a barrier for intermittently blocking the water flow in the water injection pipe. The invention has simple structure, portable operation, and is suitable for most Ivc experiments occasion, it solves the problem in the prior art that the drinking water bottle needs to be frequently disassembled for water replenishment.

The invention provides a use method of a ship residual stability improvement system. The method comprises the steps that a first suction port arranged in a ballast tank and a second suction port arranged in a cargo hold are arranged, wherein the first suction port and the second suction port are connected through a valve, the valve is connected to a relay integrator, and the relay integrator is connected to power distribution control equipment and display control equipment; a liquid level sensor connected with the relay integrator is arranged in the cargo hold; when the relay integrator receives the control commands of the power distribution control equipment and the display control equipment at the same time, the relay integrator sends the control command of the display control equipment; and when the cargo hold is damaged and water enters, the valve is opened, the cargo hold communicates with the ballast tank, the ship overturning risk is reduced, then the valve is closed, a ballast pump is opened, the water volume of the ballast tank is adjusted, and the ship stability is further improved. As the command of the display control equipment is prior to the command of the power distribution control equipment, once the ship encounters pirates and the cargo hold is damaged simultaneously, the system can be controlled through the display control equipment to prevent the ship from overturning.

The invention discloses a house building accident prevention device, comprising a device body, wherein the device body is of a hollow structure, a selection shaft is movably arranged in the device body; the selection shaft extends out of the device body; a wire reel sleeves the selection shaft; the selection shaft is movably sleeved with a stabilizing piece, the stabilizing piece is arranged on one side of the wire spool, an installation body is arranged on one side of the stabilizing piece, the end, away from the stabilizing piece, of the installation body is arranged on the inner wall of thedevice body, the end, extending out of the device body, of the selection shaft is connected with a crank, and a nylon belt is wound around the wire reel. The device is simple in structure, the safetyof building workers can be guaranteed through the nylon belt, and an artificial environment is created by applying a certain scientific rule, a wind and water idea and an aesthetic rule. A protectivenet is frequently used in the construction process of a building to ensure the safety of construction workers, and the building is low in cost, high in quality and stability, high in operability, simple in design, high in safety coefficient and convenient to carry.

The invention discloses a locking assembly-free connector reliable inserting mechanism which comprises an equipment body, a battery box, a connector socket assembly arranged on the equipment body and a connector plug assembly arranged in the battery box, wherein the connector plug assembly comprises a connector plug, a connector plug limiting part and a compression mechanism, the connector plug limiting part is provided with a mounting groove in which the connector plug is arranged, the connector plug corresponds to the connector socket assembly and is provided with a moving space in the vertical direction in the mounting groove, and the compression mechanism is arranged above the connector plug and tightly presses the connector plug. By adopting the locking assembly-free connector reliable inserting mechanism, the reliable inserting in a connector is realized, a traditional connector inserting locking mode is changed, manual and fast disassembling and changing of the connector are realized, and the adverse factors that under a space microgravity environment, a spaceman uses tools inconveniently, fasteners float in a cabin to be likely to influence the life safety of the spaceman, and the like are avoided.

The invention discloses a microwave heating device and a sterilization method, and aims to provide a microwave heating device and a sterilization method capable of preventing bottled chilli sauce frombottle explosion. The device comprises a rack, wherein box bodies are arranged on the rack; a box body cavity and a box body groove are formed in each box body; a heating assembly is arranged in eachbox body cavity; the heating assemblies penetrates through the box body cavities and are arranged in the box body grooves; a manipulator assembly is installed in each box body groove; a pressure sensor is installed in ach box body groove; a first conveying belt is installed in the rack; the first conveying belt is located below the box body grooves; and a discharging groove is formed in the sideface of the first conveying belt. The bottled chilli sauce is prevented from bottle explosion; the heating efficiency of the device is improved by arranging the heating assemblies; and the sterilization efficiency of the device is improved by arranging multiple sets of heat preservation boxes.

The invention discloses protection equipment for useless object processing stations on construction sites, comprising a fixed plate and a rotating assembly connected in sequence, the rotating assembly includes several moving plates, one end of the fixed plate and one end of the moving plate are hinged to each other , guide grooves are set on the surface of the fixed plate close to the moving plate, guide blocks are set on the surface of the moving plate close to the fixed plate, and chute grooves are set on the surface of the moving plate far away from the fixed plate . Fix the fixed plate on one side of the four-column vertical garbage compression station, and make the fixed plate perpendicular to the ground. When it is necessary to use protective equipment, pull the moving plate farthest from the fixed plate to make the moving plate rotate in turn, and the four-column One side of the vertical garbage compression station is covered to prevent the operator from walking around the four-post garbage compressor and the center of gravity is unstable, and it is easy to fall directly into the garbage bin under the ground, which will affect their life safety. Protection The safety of workers' lives.

The invention relates to the technical field of medical instruments, and particularly discloses a zero calibration anomaly detection method and respiratory gas monitoring equipment. The method is usedin respiratory gas monitoring equipment, and a gas path of the respiratory gas monitoring equipment comprises an atmosphere channel. The method comprises the steps of obtaining a zero calibration instruction; controlling a gas circuit of the respiratory gas monitoring equipment to be switched to an atmosphere channel according to the zero calibration instruction; acquiring gas path state information of the atmospheric channel; and determining whether the zero calibration condition of the respiratory gas monitoring equipment is abnormal or not according to the gas path state information. Whether the zero calibration condition of the equipment is abnormal or not can be judged only through the gas path state information, and the situation that the zero reference value is inaccurate due to abnormal zero calibration of the breathing gas monitoring equipment can be conveniently and rapidly eliminated so as to obtain the accurate zero reference value, so that inaccuracy of subsequent measurement results caused by use of abnormal zero reference values is avoided, and misleading of inappropriate operation of doctors is avoided.

The invention discloses a conveniently folded protective guard with a telescopic function for a climbing work vehicle. The protective guard comprises a carrying platform, a limiting groove and a circular hole, wherein a vertical column is arranged above the carrying platform, a fixing plate is arranged at the left side of a lower side plate, a spring is arranged at the left side of a groove, a threaded rod is arranged at the left side of a baffle, the limiting groove is formed in a limiting block, a fixing block is arranged at the right side of a supporting rod, a top cover is arranged above astorage cabinet, and the circular hole is located in the carrying platform. The conveniently folded protective guard with the telescopic function for the climbing work vehicle has the advantages thatthe protective guard is folded conveniently and has a telescopic function; not only is space not occupied, but also the use requirements of construction workers of different heights can be met; the protective guard is provided with a shield part, so that the protective guard is not corroded easily in rainy weather, thereby prolonging the service life of the protective guard; the protective guardis provided with a blocking component, so that during construction, heavy objects cannot fall off from the protective guard, and impact on site construction personnel is avoided.

The invention relates to the technical field of ladder trucks, and particularly discloses an intelligent ladder truck capable of carrying out anti-collision warning, the intelligent ladder truck comprises a fixed base assembly, base expansion assemblies are movably connected to the two sides of the fixed base assembly, and a lifting assembly is movably connected to the inner side of a square shell; the top of the lifting assembly is movably connected with a working platform, the inner side of the working platform is movably connected with a protective door assembly, and the top of the base expansion assembly is fixedly connected with an alarm assembly. The fixed base assembly comprises a square shell, and moving assemblies are fixedly connected to the two sides of the bottom of the square shell; by arranging the fixed base assembly, the base expansion assembly and the lifting assembly, the overall stability of the equipment is enhanced by increasing the contact surface between the bottom and the ground when the equipment is lifted, the situation that normal work of workers is affected by shaking of the equipment is avoided, and the personal safety of the workers is guaranteed.

The invention belongs to the technical field of mine early warning, and particularly relates to a method for applying an informationized mine lamp to a mine. The method comprises a methane detection device and an oxygen release device; a piston rod is arranged in a detection box, and a methane detector is arranged on the detection box; an electrified magnet is arranged on the inner wall of an extrusion bin and is in electric signal connection with an alarm lamp; an oxygen collecting bin is arranged on the other side wall of the fixed box; a flow guide groove is formed in the first supporting plate, and the bottom end of the flow guide groove is connected with a flow guide pipe; one end of the T-shaped sliding block is connected with the side wall of a sealing ball; a placing hole is formedin a second supporting plate, and manganese dioxide solid particles are placed in the placing hole; an oxygen guide hole is formed in the side wall of the reaction bin; when methane gas leakage occurs in a roadway of a mine, the content of methane in the roadway can be rapidly detected through the methane detection device, and when the content of methane is higher than a predefined value, the alarm lamp can remind workers to evacuate from the roadway.

The invention belongs to the technical field of office systems, specifically an Internet-based interactive office system, including a monitoring module, an operation interface replacement module, and a data statistics module; the monitoring module is used to monitor the effectiveness of customer service personnel in processing customer information; classification The unit is used to classify and process the chat information between the customer and the customer service personnel; the sound unit is used to convert the aggressive tone issued by the customer into a soft tone; the text unit and the picture unit are used to respond to the insulting or The offensive text is extracted and converted into warm or comforting text and pictures; the data statistics module is used to count whether the customer reflects a product problem, or the customer service personnel failed to solve the customer's problem for statistics; replace the module through the operation interface, so that The offensive or abusive words issued by customers are transformed into comforting or warm words, which improves the enthusiasm of customer service staff.

The invention discloses a car stop device applied to a new energy automobile and a using method of the car stop device, the car stop device comprises a car stop rod and a crushing mechanism, a mounting cylinder is arranged at the top of the car stop rod, the crushing mechanism is arranged in the mounting cylinder, the crushing mechanism comprises a fixing part, a crushing cylinder and a crushing nail, and the fixing part is arranged on the mounting cylinder. According to the car stop device applied to the new energy automobile and the using method of the car stop device, by pressing one movable frame in the fixed cylinder, the movable plate is driven to rotate along the connecting shaft, so that the two movable frames get close to each other and get away from the fixed hole, the crushing cylinder can be taken out of the mounting cylinder, car window glass can be broken, and the situation that it is difficult to escape from the automobile is avoided, and people are away from danger. According to the car stop device applied to the new energy automobile and the using method of the car stop device, the crushing cylinder moves upwards, the spring stretches out and draws back to enable the scratching block to pop out of the scratching groove, the scratching block can pierce a waterproof film, water flows out of the water storage cylinder and soaks cotton cloth, the cotton cloth can cover the mouth and the nose, and the situation that the mouth and the nose of a driver inhale poisonous gas is avoided.

The invention discloses a human body protection device used in civil engineering. The human body protection device comprises a device body which is of a hollow structure, a rotating shaft is movably arranged in the device body and extends out of the device body, a wire winding disc sleeves the rotating shaft, a fixing part movably sleeves the rotating shaft and is arranged on one side of the wirewinding disc, a mounting bracket is arranged on one side of the fixing part, the end, away from the fixing part, of the mounting bracket is arranged on the inner wall of the device body, the end, extending out of the device body, of the rotating shaft is connected with a rocker, and a nylon belt is arranged on the wire winding disc in a wound mode. The human body protection device is simple in structure, low in production cost and convenient to operate, the safety of construction workers can be ensured through the nylon belt, the situation that a protection net is damaged, and consequently thelife safety of the construction workers is affected is avoided, meanwhile, the rocker drives the rotating shaft to rotate, the nylon belt can be quickly stored, the size of the device body is decreased, and the use demands of users are met.

The invention provides water skiing equipment for overwater extreme sports. The water skiing equipment comprises moving blades and a seat. A person sitting slot of an oval structure is formed in the middle of the end face of the top of a canoe body. The seat is mounted in the person sitting slot. A storage groove is formed in the rear end of the end face of the top of the canoe body. A storage protection cover is mounted at the top of the storage groove. Two of four airbag storage grooves are located at the inner front end of the canoe body and the inner rear end of the canoe body respectively, and the other two airbag storage grooves are located on the inner left side and the inner right side of the canoe body respectively. Four airbags are mounted in the four airbag storage grooves according to shapes. The water skiing equipment has the advantages that air resistance is reduced, exercisers ski easily, and water skiing levels of the exercisers are improved; through cooperative use ofthe airbags and the airbag storage grooves, the weight of a canoe can be reduced remarkably, and the canoe is lightweight, and convenient for the exercisers to take.

The invention discloses a construction process of a semi-underground subway station. The semi-underground subway station at least comprises a first underground floor, a driving plate layer, a station hall layer, pile foundations and a drainage chamber. The semi-underground subway station construction technology comprises the steps that S1, construction preparation is conducted; s2, post-grouting cast-in-situ bored pile construction is carried out; s3, measuring and setting out; s4, mounting an earth surface drainage system; s5, inserting and driving steel sheet piles; s6, excavation of a foundation pit; s7, foundation pit base treatment; s8, constructing a framework of the negative first floor; s9, backfilling the foundation pit; s10, a support is erected; s11, main bridge box girder construction; s12, the support part is dismantled; s13, a traffic lane plate layer is constructed; s14, the continuous part of the support is disassembled; s15, construction of a station hall layer; s16, the support is completely dismantled; s17, secondary excavation of the foundation pit; s18, constructing a top plate of the negative first floor; s19, secondary backfilling of the foundation pit; s20, the steel sheet piles are pulled out; and S21, construction is completed, and the construction site is cleaned. According to the construction technology of the semi-underground subway station, traffic is not affected, and safety of ground and underground structures is not endangered.

The invention belongs to the field of modified plastics and provides an intumescent halogen-free flame retardant high isotactic polybutene-1 material and a preparation method thereof. The intumescent halogen-free flame retardant high isotactic polybutene-1 material is composed of the following raw materials in percentage by weight: 65-90% of high isotactic polybutene-1, 0.2% of antioxidant, 10-30% of intumescent halogen-free flame retardant, 0-5% of high-temperature-resistant lubricant and 0-10% of mineral fillers, wherein the total dosage of the raw materials is 100%. The modified plastics are prepared by mixing and pelleting through a twin-screw extruder. The intumescent halogen-free flame retardant high isotactic polybutene-1 material provides by the invention has excellent mechanical properties after reaching to high oxygen index and flame retardant level. The halogen-free flame retardant is friendly to the environment and generates no harmful gas in a fire to affect the life safety of people; and the prepared intumescent halogen-free flame retardant high isotactic polybutene-1 material is in good flame retardant effect, excellent in mechanical properties and wide in application range.