93results about How to "Protect your body" patented technology

The invention particularly relates to a fall-preventing emergency device for an elevator, and aims at providing a fall-preventing safety system which is simple in structure, low in cost, safe and reliable, and effectively protects the safety of passengers. The fall-preventing safety system comprises airbag assemblies, wherein each of the airbag assemblies comprises a safe airbag, an air generator, an ignition device and an electronic controller; the airbag assemblies are arranged in accommodating holes which are formed under an elevator gateway and horizontally formed in the side wall of an elevator shaft; grooves are formed in a side wall opposite to the other side with the accommodating holes, of the elevator shaft; a speed sensor and a height sensor are arranged in a lift car; output signals of the speed sensor and the height sensor are transmitted to the electronic controller. According to the fall-preventing emergency device disclosed by the invention, when the lift cars falls, one or a plurality of airbags, which are the closest to the lift car under the lift car act so as to open the airbags, so that the falling speed of the lift car is decreased rapidly until the lift car stops falling; because the fall impact force of the lift car is small, the body safety of the passengers can be protected effectively.

The invention discloses a rust removal device of an environment-friendly steel pipe end surface, and belongs to the field of environmental protection engineering equipment. An exhaust device is fixedbehind a third support, a motor is fixed at the top of a motor base, a grinding device is fixed on a main shaft of the motor, a magnet is fixed at the top of a second support, is positioned right below the grinding device, and a limiting support is fixed at the top of a first support. According to the device, a steel pipe is clamped by a first pressing block and a second pressing block, the grinding device is driven by the motor to rotate at a high speed, an end eliminating device and a surface eliminating device are used for grinding an end head and an outer surface of the steel pipe, and thecompletion of steel pipe derusting operation is replaced with manual operation, iron scraps generated by the magnet attraction and grinding are prevented from splashing to hurt people, poisonous smoke dust generated in a grinding process is adsorbed by the exhaust device, and the poisonous smoke dust is discharged into a waste treatment device, the environment pollution is reduced, the damage tothe body of workers is reduced, and the safety of the workers is guaranteed.

The invention relates to polybasic silver solder characterized in that the polybasic silver solder comprises, by weight, 12-28% of Ag, 37-49% of Cu, 1.0-3.0% of In, 0.5-2.5% of Ni, 0.001-0.1% of rare earth elements and the balance Zn, wherein the polybasic silver solder contains little precious metal of silver, and the content of the silver is reduced by about 20% compared with high-silver solder such as Bag40CuZnSn. Therefore, production cost is greatly reduced, and use amount of the precious metal of the silver is saved.

The invention specifically relates to an elevator anti-fall safety control system, and aims to provide an anti-fall safety system with simple structure, low cost, safety and reliability, and effective protection of passengers. The system includes an airbag assembly, the airbag assembly includes a safety airbag, a gas generator, an ignition device for the gas generator, and an electronic controller; the airbag assembly is arranged directly below the elevator door opening and in a horizontally arranged placement hole on the side wall of the elevator shaft Inside, a placement hole and an air bag assembly are also arranged on the side wall on the other side of the elevator shaft opposite to the placement hole, a speed sensor and a height sensor are arranged in the car, and the output signals of the speed sensor and the height sensor are transmitted to electronic controller. When the car falls, one or several airbag components below it that are closest to the car will act immediately to open the airbag, so that the speed of the car’s fall will be quickly reduced to a stop. Since the falling impact force of the car is small, it can effectively Protect the safety of passengers.

The present invention discloses a safe and rapid method for extracting genomic DNA of tea tree old leaves, comprising the following steps: grinding the tea tree leaves into powder in liquid nitrogen; then adding 800 [mu]L of preheated DNA extraction buffer; placing in a 65 DEG C water bath for 30 min after shaking; adding 125 [mu]L of KAC of 5mol / L; placing in an ice bath for 20 min after shaking; centrifuging for 3 min after reacting sufficiently; adding the supernatant to a adsorption column, loading in a collection tube and centrifuging for 1 min; adding the filtrate in the collection tube to the adsorption column again, loading in collection tubes, centrifuging for 1 min, and discarding the liquid waste; adding 800 [mu]L of ethanol of 70% to the adsorption column, centrifuging for 1min, and discarding the liquid waste; adding 800 [mu]L of ethanol of 70% again to the adsorption column, centrifuging for 1min, and discarding the liquid waste; re-loading the adsorption column into the collection tube, and centrifuging for 3 min to remove the remaining ethanol; removing the adsorption column and placing at 50 DEG C for 5min; and placing the adsorption column in a new centrifuge tube, adding 60 [mu]L of TE, placing at 40 DEG C for 5 min, and centrifuging for 3min. The liquid in the centrifuge tube is the extracted tea tree genomic DNA. The method is safe and rapid for the extraction of genomic DNA from tea tree leaves.

The invention discloses a novel front wall ventilating cover plate which comprises a first front wall cover plate and a second front wall cover plate, wherein the first front wall cover plate is fixedly connected with the second front wall cover plate through a side plate, a plurality of dust collection balls are arranged on long rods in an air intake grid in a penetrating manner, the bottom end of the first front wall cover plate is fixedly connected with a bumper, accommodating cavities are arranged in the side plate, a first air cavity is arranged at one end of a piston tube, a second air cavity is arranged on one side of a first piston, a soft tube and a pressures sensor are arranged on one side of a second piston, one end of the soft tube and one end of a damping spring are fixedly connected with an auxiliary air bag, a plurality of dust filter gauze are arranged at one end of each compression cavity in a crossing manner, a plurality of U-shaped tubes are arranged between the two adjacent compression cavities in a crossing manner, one end of a main air bag is fixedly connected with the first air cavity through an air inlet tube at the top of the second front wall cover plate, and one side of the second front wall cover plate and one side of the side plate are both fixedly connected with magnets. The novel front wall ventilating cover plate is high in collision resistance and shock resistance as well as ventilation and heat dissipation performance, is safe, prevents dust, and is convenient to install.

The invention discloses a corn kernel impurity removing device comprising a body, a rotating plate, a fixed plate, a feeding opening and two screen plates. The two screen plates are fixedly installed in the body. A screening cavity is formed between the two screen plates. A threaded rod is rotationally installed in the screening cavity. A plurality of movable blocks are evenly arranged on the threaded rod. Each screening plate is evenly provided with a plurality of round first screening holes. Each movable block is provided with a long-strip-shaped second screening hole. A first collection box and a second collection box are symmetrically installed in the body and located on the lower side of the rotating plate. The corn kernel impurity removing device can conduct screening and impurity removal on corn kernels, remove impurities mixed with the kernels and blighted kernels and meanwhile separately collect the impurities and blighted kernels and full kernels. The corn kernel impurity removing device is easy to operate and convenient to use. The corn kernel impurity removing device is further provided with a feeding opening provided with baffles, so that the kernels are prevented from splashing during screening, and the physical safety of operators is protected.

The invention relates to a safety protection cabin used in an automobile, which is a vehicle-mounted safety protection cabin for preventing collision and extrusion when the automobile taking a child has an accident, in particular to a child safety protection cabin in an automobile. A split child safety protection cabin and a sit-sleep two-purpose child safety protection cabin are designed; and according to the child safety protection cabin in the automobile, a seat, a cabin protective shell, a cabin protective shell cover, a slide rail and a bed are reasonably combined, and the child safety protection cabin consists of a cabin protection area shell, cabin top fixed connection, a seat, a protective cabin, cabin bottom fixed connection, a bed, a horizontal annular guide rail, a slide rail, bed supporting posts and balls. Therefore, the child can sit and sleep in a trip, and even if an accident happens in the trip, the child in a sitting posture or a sleeping posture can be safely protected.

The invention provides a spraying device for spraying lime sulfur to fruit trees. The spraying device comprises a housing. A mounting frame, the section of which is inverted U-shaped, is arranged on abottom plate of the housing, the lower portion of the mounting frame is fixedly connected to a buffer tank, and a material conveying pipe is arranged in the bottom of the buffer tank; a turbochargeris arranged on the buffer tank, an air filter assembly is arranged at the air inlet of the turbocharger, and the air outlet of the turbocharger extends into the buffer tank; a pipe wrapping shaft is rotatably arranged on the upper portion of the mounting frame, a plurality of rings of material spraying hoses wind the pipe wrapping shaft, and a spray gun is arranged at the discharge port of each ofthe material spraying hoses; a filter is arranged between each of the material spraying hoses and the buffer tank, the feed inlet of each filter is connected to a feeding pipe, the feeding pipe extends into the bottom of the buffer tank, and the discharge port of each filter communicates to the feed inlet of each material spraying hose; and a pipe retrieval mechanism for driving the pipe wrappingshaft to rotate is arranged on the mounting frame. Impurities in air are removed, so that the smoothness of lacquer finish is improved; the material spraying hoses can be also received, so that the material spraying hoses are prevented from breaking as a result of movement.

The invention discloses a bamboo and wood product grinding device. The grinding device comprises supporting legs, and an operating table is fixedly arranged on the supporting legs; a first gear is movably arranged on the operating table, a middle shaft is arranged in the middle of the first gear, the first gear is movably connected with the operating table through the middle shaft, and a first handle is fixedly arranged on one side of the middle shaft; and four sliding grooves are fixedly arranged on the operating table, a sliding plate is arranged on the sliding grooves, four supporting columns are fixedly arranged under the sliding plate, the ends, far away from the sliding plate, of the supporting columns are provided with sliding wheels, the sliding wheels are positioned in the slidinggrooves, a rack is fixedly arranged at the parts, among the supporting columns, under the sliding plate, the rack is meshed with the first gear, and a fixing mechanism is fixedly arranged on the sliding plate. The grinding device has the beneficial effects that the probability of injury of related personnel in the manual grinding process can be reduced, so that the body safety of the related personnel is protected, meanwhile, the grinding time is shortened, and then the energy is saved.

The invention discloses a safe training horizontal bar for fitness convenient to adjust. The training horizontal bar comprises a base, two mounting bolts transversely symmetrical are fixedly connectedto the top of the base, a power box is fixedly connected to the inner wall of the bottom of the base, a stepper motor is fixedly connected to the inner wall of the bottom of the power box, and two limiting rods symmetrically located on both sides of the stepper motor are fixedly connected to the inner wall of the bottom of the power box. According to the training horizontal bar, through arrangement of a non-slip pad and non-slip finger grooves, the non-slip effect on hands of a fitness worker is achieved, occurrence of the condition that the fitness worker falls due to palm slipping is further prevented, and the effect of protecting the body safety of the fitness worker is achieved, so that the effect that the worker exercises safely and healthily is achieved; through arrangement of a rubber plate and buffer springs, the buffering effect when the fitness worker accidentally falls is achieved, and the effect of protecting the safety and health of the fitness worker is further achieved.

The invention provides a safe knife, belongs to tools used in a kitchen and particularly relates to a knife used for protecting vegetable cutting safety of a chef. According to the safe knife, one end of a cutting board is fixedly provided with a support, the support is provided with a tubular through hole, more than two notches are reserved in the support, a plurality of knife blades in the number the same as the notches are fixed to the support through a tube core, and the knife blades can rotate around the tube core. The rear portions of the knife blades are fixedly provided with a knife handle through a knife handle core, and the rear portion of the knife handle is fixedly provided with two handles. When melon, fruit and vegetables are to be cut into blocks, a user only needs to put the fruit and the vegetables on the position, below the knife blades, on the cutting board and presses the handles, then the fruit and the vegetables can be cut into blocks and fingers are prevented from being scratched by knife edges. When the safe knife is used for cutting the vegetables, body safety of the chef is protected.

A spring mattress having a function of timed mite removing is disclosed. The spring mattress includes a shell sleeve. A supporting soft cushion adheres to the inner wall of the bottom of the shell sleeve, and the top external wall of the supporting soft cushion is connected to damping springs equally spaced through screws. The external wall of one end of the shell sleeve is connected to a plug. The top external walls of the damping springs are connected to a memory foam cushion through screws. A knitted fabric layer adheres to the top external wall of the memory foam cushion. A flame retardantlayer adheres to the top external wall of the knitted fabric layer. An air cushion layer adheres to the top external wall of the flame retardant layer. The spring mattress is provided with vibrationmotors through which mites in the mattress can be separated through vibration; the spring mattress is provided with a sucking pump, a first air feeding pipe, a second air feeding pipe and a connectionair pipe so that mites separated can be sucked into a space between the memory foam cushion and the supporting soft cushion; and the spring mattress is provided with ultraviolet ray disinfecting lamps so that the gathered mites can be killed and the mattress is disinfected, and therefore the spring mattress is provided with a function of timed mite removing.

The invention discloses automatic welding equipment convenient to adjust for iron art furniture production. The automatic welding equipment convenient to adjust for the iron art furniture production comprises a base, first fixed blocks are connected to the outer walls of the two sides of the top of the base through bolts, and first sliding grooves are formed in the outer walls of the tops of the two first fixed blocks. Two-way screw rods are rotatably connected to the inner walls of the two ends of the first sliding grooves through bearings, first sliding blocks are connected to the outer walls of the peripheries of the two ends of the two-way screw rods in a sleeving mode, and pressing plates are welded to the outer walls of the sides, away from each other, of the tops of the two first sliding blocks. Supporting columns are connected to the outer walls of the four corners of the top of the base through bolts, and second fixed blocks placed at a same level are connected to the outer walls of the tops of the two supporting columns on the two sides through bolts. According to the automatic welding equipment convenient to adjust for the iron art furniture production, a gas collectionhopper, an air pump, a filter screen and a processing box are arranged to collect and process gas and fine particles generated during furniture welding, and the situations that health of a worker is damaged by gas diffusion and the environment is polluted by the gas diffusion are avoided.

The invention discloses thermochromic laminated glass and a processing technology thereof. A formula of the thermochromic laminated glass contains a glass substrate, a polymer intermediate layer, titanium dioxide powder, vanadium dioxide powder, a plasticizer, a coupling agent, organosilicone polymer modified polyethylene, a noise-absorbing material, iron oxide powder, copper oxide powder and nickel oxide powder, and the processing technology of the thermochromic laminated glass is further included. A thermochromic glue sheet is prepared through fusion of the polymer intermediate layer, the titanium dioxide powder, the vanadium dioxide powder, the plasticizer, the coupling agent, the organosilicone polymer modified polyethylene, the noise-absorbing material, the iron oxide powder, the copper oxide powder and the nickel oxide powder, then the thermochromic glue sheet and the glass substrate are treated through a high temperature and high pressure technology, thus the thermochromic laminated glass is prepared, the basic structure of laminated glass in the prior art is not changed, operation is easy, the thermochromic laminated glass has no harm to a human body, the high-temperature resistance and low-temperature resistance characteristics are improved to a great extent, the mechanical properties and chemical properties are improved, noise is reduced, the light transmittance of ultraviolet light and infrared light is decreased, the sleep quality of people is improved, and harm of ultraviolet rays to the human body is prevented.

The invention belongs to the technical field of computers, and particularly relates to a computer production smoke removal device convenient to adjust. For the problems that a computer production smoke removal device is simple in design structure and single in function, the following scheme is provided at present, the computer production smoke removal device comprises a bottom plate, supporting columns which are vertically placed are fixed to the outer walls of the four corners of the top of the bottom plate through bolts, and a horizontally-placed operation table is fixed to the outer walls of the tops of the four supporting columns through bolts. An installing groove is formed in the outer wall of one side of the operation table, and a stepping motor is connected to the inner wall of theinstalling groove through bolts. The output end of the stepping motor is connected with a rotation shaft through a coupler. A hydraulic cylinder is fixed to the outer wall of the top of the rotationshaft through bolts. The computer production smoke removal device is provided with universal wheels, the stepping motor is arranged so that a supporting plate can be made to rotate, and the angle of smoke absorbing through a horn head is adjusted; and an electric sliding rail and an electric sliding block are arranged so that the horn head can move left and right, workers can conveniently conductadjustment, and the quality of smoke absorbing is improved.

The invention discloses novel multifunctional toughened glass. The glass comprises an organic glass base layer, a vacuum cavity is formed in the middle of the organic glass base layer, and a first polyester buffer layer fixedly adheres to the upper end of the organic glass base layer; a first toughened glass base layer fixedly adheres to the upper end of the first polyester buffer layer, and the upper end of the first toughened glass base layer is coated with a colored glaze coating. According to the multifunctional toughened glass, the first polyester buffer layer, an explosion-proof membranelayer and a second polyester buffer layer are arranged, so that the self-explosion rate of the toughened glass is reduced, and the safety of the toughened glass is improved; by arranging the organicglass base layer and the vacuum cavity, the weight of the toughened glass is reduced, and the sound insulation and heat preservation effects of the organic glass are improved; by arranging the coloredglaze coating, the number of styles of the toughened glass is increased, and the attractiveness is improved; by arranging a hydrophobic coating, a second toughened glass base layer is not likely to be stained by dust and water, and the toughened glass can be cleaned conveniently.

The invention provides a scoring device. The scoring device comprises a threaded hole I, a through hole I, an adjusting rod, a connecting rod, a through hole II, a threaded hole II, a sponge block I,a cover plate, a sponge block II and a cleaning box, wherein the threaded hole I is formed in the upper end surface of a supporting column I; the through hole I is formed in the left end surface of the supporting column I; the threaded hole II is formed in the upper end surface of a supporting column II; the through hole II is formed in the right end surface of the supporting column II; the adjusting rod is arranged on the left end surface of the supporting column I; the connecting rod is arranged on the front side of the annular side surface of the adjusting rod; the design solves the problem that the switching of a scoring knife of an existing gypsum line scoring machine is complicated; the cleaning box is arranged on the front end surface of the connecting rod; the cover plate is arranged on the upper end surface of the cleaning box; the sponge block I is arranged at the right side of the lower end surface of the cover plate; the sponge block II is arranged at the left side of thelower end surface of the cover plate; and the design realizes the purpose of convenient cleaning of the scoring device. The scoring knife of the scoring device can quickly switched; and the scoring device is convenient to clean, has complete functions, and is safe and reliable.

The invention discloses a method for desulphurization of dry gas and liquefied gas. The method comprises the following steps: allowing sulfur-containing dry gas to enter a liquid separation tank for dry gas under the conditions of a temperature of 40 DEG C and a pressure of 1.3 MPa so as to remove liquid drops and mechanical impurities carried by the sulfur-containing dry gas; then allowing the treated dry gas to enter the lower part of a dry-gas desulphurization tower for countercurrent contact with lean amine liquid pumped into the dry-gas desulphurization tower from an amine liquid circulating pump, wherein H2S in the dry gas is absorbed by the lean amine liquid, and then separating a solvent carried by the dry gas without H2S in virtue of a gravity settling section and a wire mesh demister in the dry-gas desulphurization tower; allowing the dry gas to enter a settlement tank for further settlement and separation of the carried solvent; allowing the treated dry gas to enter a hydrogen concentration apparatus via a pressure-regulating valve; and allowing the dry gas having been treated by the hydrogen concentration apparatus to enter a whole-plant high-pressure gas system. The method provided by the invention can thoroughly treat sulfur components in dry gas and liquefied gas, prepare dry gas and liquefied gas with high purity, avoids environmental pollution in subsequent combustion of dry gas and liquefied gas, and protects human health.

The invention relates to the technical field of paint spraying equipment, in particular to paint spraying equipment with a transparent spraying cover. The equipment comprises a sprayer body, wherein the sprayer body comprises a paint spraying pipe; a spray-head is arranged on one end surface of the paint spraying pipe; a charging barrel is arranged on the paint spraying pipe; a baffle is arranged on the paint spraying pipe; the baffle is rectangular; a through hole is formed in the middle of the lower part of the front surface of the baffle; the paint spraying pipe penetrates through the through hole; the charging pipe is connected with the baffle through a connecting belt; and a ball valve I is arranged on the paint spraying pipe. The equipment adopts the structure that a movable transparent cover is arranged on the spray-head, transparent dustproof plates are arranged on the two sides of an operator, and a dust collection mechanism is provided; and the equipment is convenient to use, and through the adoption of the equipment, the dust intake is greatly reduced, the physical safety of operating workers is protected, and potential safety hazards and occupational diseases are eliminated.

The invention discloses a lifting storage platform. The platform comprises a worktable, a first rectangular groove is machined in one side of the upper surface of the worktable, a conveying belt is arranged on the other side of the upper surface of the worktable, a set of mechanical clamp hands are arranged between the first rectangular groove and the conveying belt, a set of vertical sliding ways are machined on surfaces of the opposite sides in the first rectangular groove, a vertical sliding rail is arranged in each vertical sliding way, a sliding block is arranged on each vertical sliding rail, a bearing plate is connected to the upper surfaces of the sliding blocks jointly, a controller is arranged on the surface of one side of the worktable, an electric supply connector is formed below the controller, and is electrically connected with the controller, and the input end of the controller is electrically connected with the conveying belt, the mechanical clamp hands and a linear motor. The platform has the beneficial effects of being simple in structure and high in practicability.

The invention discloses a vehicle lateral collision energy absorption structure. A battery assembly framework is fixedly connected to the upper side of a vehicle framework. The two sides of the battery assembly framework are fixedly connected with energy absorption frameworks. Each energy absorption framework comprises an energy absorption supporting framework and energy absorption boxes, wherein the side, close to the battery assembly framework, of the energy absorption supporting framework is fixedly connected with the multiple energy absorption boxes. The energy absorption boxes are of a tubular structure, the cross section of each energy absorption box is of a rectangular cross section, a plurality of notches are formed in the edges of the rectangular structures, and the notches are triangular notches or circular arc notches or rectangular notches. One side of the battery assembly framework is fixedly connected with the energy absorption frameworks, the energy absorption frameworks comprise the energy absorption boxes and the energy absorption supporting frameworks for supporting the energy absorption boxes, the energy absorption boxes can buffer external collision force to protect the battery assembly framework, and furthermore, the safety of batteries and the physical safety of users on the battery assembly framework are ensured.

The invention provides a battery cell laminator and a diaphragm clamping mechanism of a lithium battery, including the base, At one side of that inn wall of the chassis, a first fixing plate is weld,A first rotating lever is welded to the top of the first fixing plate, At one end of that first rotate lever, a first gear is arrange, A first bevel gear is welded at the top central shaft of the first gear, At one side of that inn wall of the base, a first mating rod is weld, As that first screw rod is arrange at one end of the first mating rod, the device improve work efficiency, integrates lamination and diaphragm operation, saves work time, and furthermore, the operator in the device only needs to place the lamination on the outside, does not touch the working part of the equipment, and protects the safety of the operator.

The invention discloses efficient dust removal equipment for textile workshops. The equipment comprises a dust collector and a treatment mechanism which are communicated with each other through a pipeline, wherein an air return structure capable of adjusting the flow direction of gas in the dust collector is arranged between the dust collector and the treatment mechanism; a dust filtrating screenis arranged on one side, close to the dust collector, of the air return structure; a gathering device is arranged below the dust filtrating screen. The equipment has the benefits that the dust collector absorbs dust and textile thread residues in a textile workshop, the treatment mechanism treats the dust and the textile thread residues, the air return structure adjusts the flow direction of gas inside the dust collector, so as to blow off accumulated dust on the dust filtering screen, accomplish automatic cleaning of the dust inside the dust collector, and provide the dust collector with dustand thread residue absorption capacity, and the gathering device gathers the dust and the textile thread residues, and improves the dust removal efficiency of the dust removal equipment.

The invention discloses a method for rapidly realizing gasoline sweetening. The gasoline with stable components enters the deodorization unit under the conditions of 30-40°C and 0.35 MPa, and fully mixes and reacts with dilute lye with a concentration of 10% through a static mixer. , and then enter the gasoline alkali washing ionizer for pre-alkali washing and refining. Under the action of the electric field, the alkali slag carried in the gasoline is separated to generate a corrosion-qualified electrified gasoline, and the electrified gasoline is statically mixed with the purified air and the activator After fully mixed in the reactor, it continuously enters the gasoline deodorization reactor, and passes through the activated carbon bed layer loaded with sulfonated cobalt phthalocyanine catalyst to oxidize the mercaptan in gasoline to disulfide, so as to achieve the purpose of deodorization. The reaction coming out of the top of the oxidizer Qualified gasoline is refined gasoline, and then enters the three-phase separator, the oxidation tail gas is separated from the top of the tank to the acid gas flare, and the bottom is discharged, and the refined gasoline is sent to the finished product tank area from the upper part through the metering valve group. This process can clean up the sulfur components in gasoline and obtain gasoline with higher purity.

The invention discloses a lower supporting device for an automobile bumper. The lower supporting device comprises a height-adjustable supporting rod. A stand bar seat is arranged below the supporting rod which is placed on the ground in the perpendicular direction. The middle portion of the supporting rod is conic and is matched with a pin hole of the bumper. A V-shaped lifting hook is arranged at the edge position of the front end of the supporting rod and connected with the lower end of the bumper. A cylinder locating column is arranged at the rear end of the supporting rod. The axis of the locating column is arranged in the perpendicular direction. Locking holes are formed in the stand bar seat. Multiple reinforcing ribs are arranged on the middle lower portion of the supporting rod and connected with a bumper beam through the locking holes. The automobile bumper is provided with a supporting component, the structure is simple, the bumper is connected with a bottom board of an automobile body, and the purpose that the physical safety of pedestrians is protected is achieved; disassembly and assembly are convenient, the supporting reliability can be guaranteed through a stand bar at the bottom end of the supporting rod, and a jack needs to be used to jack an automobile; and the lower supporting device is simple in structure and is not limited by a site.

The invention discloses a handheld fire extinguisher with the good antiskid performance. The handheld fire extinguisher comprises a fire extinguisher pot body. A fire-fighting indicator board is connected to the outer wall of the fire extinguisher pot body through rivets. The top of the fire extinguisher pot body is provided with a first through hole. A pot cap is in threaded connection with the interior of the first through hole. The top of the pot cap is connected with a connecting pipe through a ferrule. The handheld fire extinguisher is provided with an jet nozzle, an antiskid rubber sleeve and a spray hose, a fire extinguishing agent is jet out through the jet nozzle at one end of the spray hose when a fire is put out; the antiskid rubber sleeve is connected to the outer wall of the jet nozzle, friction force between the jet nozzle and a hand can be increased to prevent the situation that the jet nozzle falls off due to the fact that the fire extinguishing agent jet speed is too high during fire extinguishing, and physical safety of a fireman is protected; a fixed shell is connected to the bottom of the fire extinguisher pot body in an inserted mode and is fixed through fastening bolts, a standby hose is arranged in the fixed shell, and the handheld fire extinguisher can adapt to different complex fire extinguishing environments accordingly.

The invention belongs to the technical field of sports equipment, and particularly relates to soccer shooting training equipment for sports. The soccer shooting training equipment comprises a support;one side of the support is fixedly connected with a shooting motor, and a push rod is slidably connected to the support; a driving synchronizing wheel is fixedly connected to the shooting motor, a driven synchronizing wheel is arranged above the driving synchronizing wheel, and the driving synchronizing wheel and the driven synchronizing wheel are connected through a synchronous belt; the drivensynchronizing wheel is rotationally connected to the support, and a rotary plate is fixedly connected to the driven synchronizing wheel; shifting rods are symmetrically arranged on the rotary plate; atop column is fixedly connected to the upper end face of the push rod, and the lower end face of the push rod is fixedly connected with a top plate; a pull rope is fixedly connected between the top plate and the support, and one side of the top plate is provided with a shooting tube; and a water tank is arranged in the shooting tube, and a soccer is arranged in the shooting tube. The soccer can be wetted by the water tank in the shooting tube, thus the scene of shooting in rainy days can be simulated, the situations that a soccer player practices shooting in the rainy days and consequently catches a cold and is accidentally injured can be avoided, and physical safety of the player is ensured.

The invention provides a spinning window convenient to install and provided with a dustproof structure. The spinning window comprises a spinning window body; an assembling mechanism is arranged on theouter side of the spinning window body; the assembling mechanism comprises a first limiting frame, a clamping rod, a second limiting frame and bolts; the first limiting frame and the second limitingframe are located on the front side and the rear side of the spinning window body respectively; the clamping rod is fixed on the rear end face of the first limiting frame and penetrates through the spinning window body to be connected with the front end face of the second limiting frame in a clamped mode; an installation mechanism used for installing the spinning window in a wall is arranged on the outer side of the assembling mechanism; an air inlet pipe is installed above the right side of the exterior of the spinning window body, the air inlet pipe penetrates through the second limiting frame to be connected with the spinning window body, the air inlet pipe is fixedly connected with a draught fan, and meanwhile a spinneret plate is arranged at the top end of the interior of the spinningwindow body; the device is simple in structure, convenient to operate and install and capable of achieving the dustproof effect.