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39results about How to "Improve safety and comfort" patented technology

Road cross section structure of mountainous road

The invention discloses a road cross section structure of a mountainous road. A pavement base layer is of a double-wave cross section structure of which the middle part is high and two sides are concave; a concrete road surface layer is cast on the pavement base layer; the top surface of a concrete road is of a streamline groove shaped structure of which two sides are high and the middle part is concave; the pavement base layer and the concrete road surface layer finally form a 'horizontal 8-shaped' cross section structure. The strength of a plate body can be improved by thickening the concrete road surface layer at the bottom of a wheel; due to adoption of ditches in the middle, water can be gathered, so that a soil body is not flashed by the water; due to adoption of a concave transverse slope, a mountain slope side can be prevented from being flashing by surface ponding, and the plate bottom can be prevented from returning flashing, so that a plate can be prevented from being suspended, vehicles can run relatively safely, and a roadbed can be relatively safe; due to adoption of grooves in two sides, the chassis of a vehicle body can be lifted upwards, so that the vehicle body can be protected; as water flowing down from a mountain is gathered on one side or two sides uniformly, original water drainage states of the mountain are not artificially changed, centralized water discharge flashing can be avoided, natural original ecology can be maintained, and a middle water discharge ditch can be clear without sludge.
Owner:NO 2 ENG CO LTD OF CHINA RAILWAY CONSTR 11 BUREAU GRP +1

Roller guide shoe with auxiliary braking function

The invention relates to a roller guide shoe with an auxiliary braking function, and belongs to the technical field of elevators. The roller guide shoe with the auxiliary braking function is providedwith a guide shoe seat; adjusting devices which are connected to the guide shoe seat through bolts are symmetrically arranged on the guide shoe seat; each adjusting device is connected with a spring supporting rod; one side, opposite to each adjusting device, of the corresponding spring supporting rod is connected with a braking roller which is made of an elastic material; each braking roller is connected with an electric control braking motor which is arranged on a mounting plate; a longitudinal roller which is perpendicular to the plane on which the braking rollers are positioned is connected between the two adjusting devices through a bolt; and the mounting plate which is fixed to the guide shoe seat and provides supporting for the electric control braking motor is arranged below the electric control braking motor. The roller guide shoe with the auxiliary braking function has the benefits that braking values G are uniformly distributed and a braking curve is stabilized, so that thesafety and comfort of personnel in an elevator cage are improved; the rollers are of a spring bearing type, so that the taking comfort is ensured; and the electric control motor brakes by holding a brake, an oil pressure loop is avoided, and the structure is compact.
Owner:CANNY ELEVATOR

Flexible bidirectional elevator speed limiter

The invention discloses a flexible bidirectional elevator speed limiter. The flexible bidirectional elevator speed limiter comprises a speed limiter rope wheel, and further comprises a triggering device and a braking device; the triggering device comprises a throwing block mechanism, an eccentric locking ring, a notch rotating wheel and a locking plate, wherein a first spring and a spring bolt arearranged in a locking plate radial blind locking hole; the braking device comprises a friction block carrier plate, a friction block, a friction block support rod and a bolt guide rod; the friction block is adhered to the friction block carrier plate, one end of the friction block support rod abuts against the notch of the notch rotating wheel, and the other end of the friction block support rodis connected to the bolt guide rod in a sleeved mode; and the bolt guide rod is fixed on a support, wherein a second spring is further arranged between the friction block carrier plate and the support. According to the flexible bidirectional elevator speed limiter, flexible braking is realized, and the safety comfort degree of an elevator user is improved; and meanwhile, only one set of triggeringdevice and braking device are needed, so that the speed limiting function for preventing ascending and descending over-speed running of the elevator is achieved, the structure is simple, and the costis reduced.
Owner:SHANGHAI DIANJI UNIV

Ultra-high strength spring steel having high plasticity and preparation method thereof

The invention relates to a preparation method of an ultra-high strength spring steel having high plasticity. The preparation method of the ultra-high strength spring steel having the high plasticity includes: when designing alloy compositions of the spring steel, adding moderate alloy elements V and Nb based on the 55SiCr steel sort, and enabling the spring steel to contain 0.1-0.25wt% of the V and 0.005-0.03wt% of the Nb; in a heat treatment process, first performing austenitizing treatment on the spring steel workpiece, and then performing tin bath low temperature isothermal quenching treatment, wherein conditions of the tin bath low temperature isothermal quenching treatment are as following: an isothermal quenching furnace is heated to 235-250 DEG C, the spring steel workpiece after passing through the austenitizing treatment is placed in the isothermal quenching furnace, a tin bath is used as the isothermal quenching furnace, quenching speed is 200-300 DEG C.s<-1>, the spring steel workpiece is fetched out after 30-480min of isothermal heat preservation, and then is cooled to room temperature in water at 15-25 DEG C, and cooling speed is 200-300 DEG C.s<-1>. According to the spring steel prepared by using the preparation method, tensile strength reaches above 2200MPa, the percentage of area reduction reaches above 40%, specific elongation reaches about 16%, and the productof strength and ductility reaches above 35GPa%. The spring steel can be used as automobile suspension spring steel so as to improve running stationarity of automobiles and traffic safety and riding comfort of driving and riding personnel.
Owner:NORTHEASTERN UNIV

A flexible two-way elevator speed limiter

The invention discloses a flexible bidirectional elevator speed limiter. The flexible bidirectional elevator speed limiter comprises a speed limiter rope wheel, and further comprises a triggering device and a braking device; the triggering device comprises a throwing block mechanism, an eccentric locking ring, a notch rotating wheel and a locking plate, wherein a first spring and a spring bolt arearranged in a locking plate radial blind locking hole; the braking device comprises a friction block carrier plate, a friction block, a friction block support rod and a bolt guide rod; the friction block is adhered to the friction block carrier plate, one end of the friction block support rod abuts against the notch of the notch rotating wheel, and the other end of the friction block support rodis connected to the bolt guide rod in a sleeved mode; and the bolt guide rod is fixed on a support, wherein a second spring is further arranged between the friction block carrier plate and the support. According to the flexible bidirectional elevator speed limiter, flexible braking is realized, and the safety comfort degree of an elevator user is improved; and meanwhile, only one set of triggeringdevice and braking device are needed, so that the speed limiting function for preventing ascending and descending over-speed running of the elevator is achieved, the structure is simple, and the costis reduced.
Owner:SHANGHAI DIANJI UNIV

Automobile environment-friendly panel

The invention discloses an automobile environment-friendly panel, relates to the field of key layout of automobile operation panels, and aims to solve the problem that keys on the automobile environment-friendly panel need to be reduced, but cannot be completely replaced by touch screen selective keys to prevent potential safety hazards. The automobile environment-friendly panel comprises an automobile panel, a touch screen arranged in the middle of the automobile panel and a plurality of keys arranged above the touch screen, wherein when the automobile panel is arranged in the automobile, one surface close to the outside of the automobile is an inner side surface, when the automobile panel is arranged in the automobile, one surface far away from the outside of the automobile is an outer side surface, a plurality of boxes are arranged on the inner side surface of the automobile panel, one side of the touch screen is provided with an auxiliary adjusting knob, a main adjusting knob is arranged below the touch screen, one side of the main adjusting knob is provided with two switching keys which are distributed up and down, the other side of the main adjusting knob is provided with another two switching keys which are distributed up and down, one surface of the main adjusting knob parallel to the automobile panel is equally divided into four fan-shaped areas, and the sector area is a selection key..
Owner:SUZHOU RONGNENG ENVIRONMENTAL PROTECTION SCI & TECH CO LTD

Gynecological private part sterilizing and cleaning device

The invention discloses a private part sterilizing and cleaning device for the gynecology department, and relates to the technical field of medical instruments. The problem that weak patients cannot complete cleaning by themselves is solved. The device specifically comprises a base, a box body is fixedly connected to the outer wall of the top of the base, and a cushion is arranged on the outer wall of the top of the box body; sliding grooves are formed in the inner walls of the opposite sides of the box body, supporting rods are slidably connected to the inner walls of the sliding grooves through sliding blocks, the same folding plate is fixedly connected to the outer walls of the bottoms of the supporting rods and the inner walls of the bottoms of the sliding grooves, and leg supports are fixedly connected to the outer walls of the tops of the supporting rods. The outer wall of one side of the supporting rod is rotationally connected with an irregular L-shaped crow plate through a concave base, the top end of the crow plate is fixedly connected with a pulling rod, and the outer wall of the top of the pulling rod is fixedly connected with a separating roller. Convenience is provided for cleaning the private parts of a patient in the later period, assistance of other people is not needed, a closed cleaning environment is provided for the patient, the safety and comfort of the patient during use are improved, meanwhile, manual operation is saved, and the structure is stable.
Owner:刘小杰

Anti-tilt wheelchair chassis structure and off-road wheelchair

InactiveCN113350064AReduce risk of tipping over with over-tiltingAvoid leaningWheelchairs/patient conveyanceShock avoidanceWheelchair
The invention discloses an anti-tilt wheelchair chassis structure and an off-road wheelchair. The anti-tilt wheelchair chassis structure comprises a chassis assembly; a gravity center balance assembly is installed in the center of the chassis assembly, and comprises a first rear wheel connecting frame, a second rear wheel connecting frame, a first front wheel connecting frame, a second front wheel connecting frame, a conversion rod and a conversion shock-absorbing mechanism; a four-wheel steering assembly is arranged at the top of the chassis assembly, and used for driving four wheels to deflect synchronously; a seat frame is installed on the top of the chassis assembly; and the conversion shock-absorbing mechanism is rotationally installed between the chassis assembly and the seat frame. When any wheel connecting frame on any side moves upwards, the other wheel connecting frame located on the diagonal line of the wheel connecting frame can also equivalently move upwards under the driving of the conversion shock-absorbing mechanism while the two wheel connecting frames located on the other diagonal line are synchronously pressed downwards by the conversion shock-absorbing mechanism, so that the gravity center is balanced; and thus, the danger of excessive inclination and overturning is reduced.
Owner:安徽金百合医疗器械有限公司

Sweat-proof anti-dropping comfortable safe steering wheel

The invention discloses a sweat-proof anti-dropping comfortable safe steering wheel. The sweat-proof anti-dropping comfortable safe steering wheel comprises a steering wheel body. A circular ring of the steering wheel body is of a hollow structure. An airflow channel is formed in the circular ring of the steering wheel body. A supporting assembly and a safety air bag installation part of the supporting assembly are arranged in the middle of the steering wheel body. A supporting connecting piece is arranged on the periphery of the supporting assembly and the periphery of the safety air bag installation part. The supporting connecting piece is connected with the edge of the circular ring of the steering wheel body, so that a whole is formed. Airflow outlet fixing pieces are arranged on the two edges of the circular ring of the steering wheel body. Internal channels of the airflow outlet fixing pieces communicate with the airflow channel. An air pump is arranged on the outer side of the supporting assembly and the air bag installation part. The air pump communicates with the airflow channel through a pipeline. A heater is arranged at the front end of the air pump. According to the sweat-proof anti-dropping comfortable safe steering wheel, a special airflow outlet fixing piece is arranged to be connected with the air pump, so that an airflow outlet of the air pump directly faces hands, the effect is good, and the driving safety and driving comfort are improved; and compared with an air-conditioning system, energy is saved, and environmental friendliness is achieved.
Owner:HEFEI FELLOW AUTOMOBILE PARTS

A kind of ultra-high-strength spring steel with high plasticity and preparation method thereof

The invention relates to a preparation method of an ultra-high strength spring steel having high plasticity. The preparation method of the ultra-high strength spring steel having the high plasticity includes: when designing alloy compositions of the spring steel, adding moderate alloy elements V and Nb based on the 55SiCr steel sort, and enabling the spring steel to contain 0.1-0.25wt% of the V and 0.005-0.03wt% of the Nb; in a heat treatment process, first performing austenitizing treatment on the spring steel workpiece, and then performing tin bath low temperature isothermal quenching treatment, wherein conditions of the tin bath low temperature isothermal quenching treatment are as following: an isothermal quenching furnace is heated to 235-250 DEG C, the spring steel workpiece after passing through the austenitizing treatment is placed in the isothermal quenching furnace, a tin bath is used as the isothermal quenching furnace, quenching speed is 200-300 DEG C.s<-1>, the spring steel workpiece is fetched out after 30-480min of isothermal heat preservation, and then is cooled to room temperature in water at 15-25 DEG C, and cooling speed is 200-300 DEG C.s<-1>. According to the spring steel prepared by using the preparation method, tensile strength reaches above 2200MPa, the percentage of area reduction reaches above 40%, specific elongation reaches about 16%, and the productof strength and ductility reaches above 35GPa%. The spring steel can be used as automobile suspension spring steel so as to improve running stationarity of automobiles and traffic safety and riding comfort of driving and riding personnel.
Owner:NORTHEASTERN UNIV LIAONING
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