126results about How to "Avoid accident hazards" patented technology

The invention belongs to machinery production technological devices and particularly relates to a semi-automatic press for mechanical assembly. A pneumatic control system (26) and an electrical control system (27) are fixedly mounted on a lower framework (25), a work panel (11) is fixedly mounted at the upper end of the lower framework (25), an optoelectronic switch (8) a safety limited post (30), an upper framework (12) and four guide optical axes (4) are respectively and fixedly mounted on the work panel (11), a gas-liquid pressurized cylinder (13) is fixed on an upper fixed plate (2), a pressure head (7) used for mounting a workpiece in a pressing mode is fixed below a movable guide plate (6), a press block (20) used for triggering a sensor is fixed on one side face of the movable guide plate (6), and a fixture (9) is fixedly mounted at a place, corresponding to the pressure head (7), in the middle of the upper face of a lower fixed plate (10). The semi-automatic press for the mechanical assembly is reasonable in structure and safe, convenient and fast to operate, can accurately judge the press-in position of a part and whether pressure is right and appropriate or not, and can realize accurate measurement of displacement and the pressure and achieve an automatic alarming function when an out-of-tolerance situation happens.

The invention relates to a method for drying polycarbonate (PC), which is characterized in that PC powder is subjected to drying treatment by adopting a one-stage pneumatic drying and two-stage fluid bed drying combined way, and overhot vapor is used as the drying medium in the one-stage drying process; and hot nitrogen gas is used as the drying medium in the fluid bed drying process, the nitrogen gas is recycled through processes such as washing, cooling, dehumidifying, pressurizing, heating and the like, and the PC powder in washing water is recycled. The water content of a product dried in the three-stage draying combined way can meet the later processing requirement, accident potentials such as dust explosion and the like caused in the drying process of the PC powder can be effectively solved, and the quality of the product can be improved.

The invention relates to a forklift operation training simulator. A main structure of the forklift operation training simulator comprises hardware equipment and a software system. The hardware equipment comprise a simulation cab, an steering control system, an instrument system, a multimedia computer, an audio system, an instructor control panel and the like. The software system comprises an operation platform and is used for real-time working environment animation generation of the computer, dynamic forklift driving simulation, sound simulation, operation evaluation, data management, network control and the like. The forklift operation training simulator has the advantages that a whole training period of a student can be shortened greatly, the student is enabled to finish training tasks in a short time, sudden incidents which rarely happen during practical training can be simulated conveniently, accurate-judging ability, good psychological quality and the ability of handling emergency circumstances correctly of the student can be cultivated, and training quality is improved.

The invention discloses a subzero treatment method for a large-diameter cold rolling work roller and a copious cooling box thereof. The copious cooling box comprises a box body with an insulating layer, an insulating box cover and liquid nitrogen spray pipes arranged in the box body. Two liquid nitrogen spray pipes are respectively arranged on the upper side and the lower side, nozzles of the two liquid nitrogen spray pipes on the upper side are inclined downwards, nozzles of the liquid nitrogen spray pipes on the lower side are inclined upwards, and net covers are arranged at the nozzles of the liquid nitrogen spray pipes. The subzero treatment method comprises the steps of enabling the temperature in the copious cooling box to fall to -80 DEG C to -120 DEG C and insulating for 1h-3h, then arranging the large-diameter cold rolling work roller in the copious cooling box, and controlling ultralow temperature electromagnetic valves on pipelines between the liquid nitrogen spray pipes and a liquid nitrogen storage tank to enable liquid nitrogen to be sprayed out of liquid nitrogen spray pipes to cool the large-diameter cold rolling work roller. The subzero treatment method achieves low temperature cooling, enables the low temperature limitation to be about -180 DEG C, can quickly reduce the surface temperature of the roller and improves cooling efficiency.

The invention provides a high-strength nylon formula for a blower impeller and a preparation method thereof. Base stocks of the formula comprise caprolactam and laurolactam. Besides, glass beads undergoing activation treatment are added in the base stocks to improve the wearability. Meanwhile, a certain amount of plasticizer, dispersant, lubricant, buffering agent, antioxidant, catalyst and cocatalyst are added. During the pouring and molding, balanced pressurization is carried out so as to improve physical and chemical properties. The invention realizes once pouring and molding, easy batch production, low cost, light weight and energy consumption reduction. The impeller is an integrated body, does not need the welding of components, has strong wearability and good safety. The nylon can be substituted for steel, aluminum and other metal materials in the preparation of the blower impeller.

An automatic grinder device and the preparation method of grindstones relates to the mechanical field. It specially relates to a heavy grinding cubic boron nitride grindstone device of the heavy grinding double-sided high precision automatic grinder of various brake discs in automobile and aircraft aviation industry and the preparation method of its seat and grindstone. The device is composed of a seat, a grinder device and five cylinder CBN grindstones embedded on the alloy seat. The method contains preparation technology of the alloy seat, the sintering technology, fastening and binding method of five CBN grindstones. It mainly resolves the technologies of CBN grindstones device and the preparation method of its seat and grindstones. With its characterizes of multi-point cutting capability and small cutting resistibility, the invention has advantages of convenient clamping, strong rigidity, convenient tool setting and grinding at initial stage and high efficiency.

The invention discloses a distributed high-capacity intelligent infusion monitoring system, which comprises at least one liquid level data acquisition control unit, a concurrency wireless transmission unit, a big data analysis unit and a scheduling unit, wherein the liquid level data acquisition control unit comprises a dropping speed measuring module, a stored liquid level detection module, an alarm module and a dropping speed control module; the concurrency wireless transmission unit adopts a star-shaped networking model, and the concurrency wireless transmission unit adopts a 433M wireless module; and both liquid level acquisition and dropping speed measurement are achieved by virtue of a reflective infrared photoelectric sensor. According to the distributed high-capacity intelligent infusion monitoring system provided by the invention, a liquid level situation is acquired in real time by virtue of a wireless communication means; an infusion speed is remotely controlled on the basis of big data critical-path analysis; and general scheduling is adopted, so that a circumstance that nurses cannot simultaneously handle cases at peak hours is prevented and a problem on concurrent communication and control of highly dense patients who accepting infusion in wards is solved, and subsequently, the full use of time of the nursing personnel (the nurses) monitoring patients' infusion progresses is achieved. In addition, the monitoring system can remind the nursing personnel to adopt treatment measures in time in the case that liquid lacks, so that the safe and effective operation of medical equipment is guaranteed.

The invention relates to an automatic part feeding device used in welding of a vehicle body, and belongs to the technical field of automobiles. In the technical scheme, the automatic part feeding device comprises a base, a rollover stand, a rollover cylinder, a propelling cylinder, a workpiece holder and a holder support, wherein the rollover stand is rotatably connected with the base through a horizontal rollover shaft; the rollover cylinder is installed on the base; a piston top rod of the rollover cylinder is hinged with the rollover stand; the upper end of the holder support is fixed with the workpiece holder and the lower end of the holder support is connected with the rollover stand through a propelling slide rail; the propelling cylinder is fixed on the rollover stand; and a piston top rod of the propelling cylinder is connected with the holder support. By the automatic part feeding device, all actions can be automatically completed according to programs, part feeding automation in a vehicle body welding process is realized, the working efficiency is greatly improved, negative influence of human factors on part feeding is eliminated, the welding quality of the vehicle body is ensured, and accident potential caused by manual part feeding is also avoided.

The disclosed notice device for illegal parking comprises: with this device, setting new communication chip with the illegal parking to set one number for every vehicle and thereby provide calling service for driver; supplying one piece of this card for every driver; when traffic police dials number to communicate with driver, or driver can dial number to learn where the vehicle is when the vehicle is drew off. This invention is benefit to reduce time consumption and economic loss for driver.

The invention relates to a storage monitoring management method for automatically monitoring a storage system. The method comprises an oil inventory monitoring management process, an oil movement task order management process and an oil movement monitoring management process. The oil inventory monitoring management process includes the steps of calculating storage tank inventory data, monitoring a storage tank and alarming. The oil movement task order management order includes the steps of receiving, storing, managing, displaying, modifying, starting, suspending or stopping the oil movement task order. The oil movement monitoring management process includes the steps of : selecting an oil movement path on a topological structure model of a storage and transportation system according to the oil movement task order; generating a device list that the oil passes in the movement path according to the oil movement path; displaying the current state of the device in the movement path; displaying a movement path line on the topological structure model of the storage and transportation system when the movement path is through; and performing a movement operation order.

The invention relates to a security monitoring device for an automobile and can effectively solve problems about correct operation of a steering wheel, monitoring of the driver state and reduction of traffic accidents. According to a method, control switches are evenly distributed on a cambered surface circumference in the middle of the outer side of a handle of the steering wheel and connected with a monitoring circuit, the monitoring circuit is connected with a control circuit connected with a drive circuit, each control switch consists of a first button switch and a second button switch, the steering wheel is divided into a left area and a right area by a virtual separation line penetrating through the center of the vehicle in a straight driving state, first button switches are evenly distributed and mounted on the cambered surface in the middle of the outer side of the steering wheel in the left area, second button switches are evenly distributed and mounted on the cambered surface in the middle of the outer side of the steering wheel in the right area, each button switch consists of multiple independent button switches, and at least two groups of independent button switches are pressed once by one hand. The security monitoring device is novel and unique in structure and easy to mount and use, accident potential caused by factors of a driver is eliminated fundamentally, and traffic safety is ensured.

The invention discloses a metal membrane storage tank and a processing method of a metal membrane. The metal membrane storage tank comprises an upper shell and a lower shell; a reinforcing ring is annularly arranged on the lower part of the outer wall of the upper shell, and the bottom end face of the reinforcing ring and the top end face of the lower shell are welded to form a hollow structure; the hemispherical metal membrane is arranged in an inner cavity of the upper shell, and a first cavity used for containing gas is defined between the upper surface of the metal membrane and the inner shell of the upper shell; a second cavity used for containing a propellant is defined between the lower surface of the metal membrane and the inner wall of the lower shell; the metal membrane is provided with a hemispherical cambered surface, and the opening end of the bottom of the hemispherical cambered surface is outwards bent and extends to form a U-shaped cambered surface; and the suspending end of the U-shaped cambered surface and the bottom end face of the upper shell are welded to be fixed. The metal membrane storage tank is compact in design structure and convenient to assemble, the metal membrane can be overturned normally in the using process, and hidden danger that in the using process, the metal membrane is broken, and thus an accident occurs is eradicated.

The invention discloses a disposing system of blast furnace, which comprises the following parts: blast furnace slag water quenching and transmitting device, slag sediment pool, flushing cinder circulating device, slag-water separating and conveying device, wherein the slag sediment pool is composed of effluent pond, clean water pond, overflow channel, secondary filter slag pond and filter grid, which interconnect sequently; the overflow channel, secondary filter pond and clean water pond parallel; the overflow channel is shallower than effluent pond, clean water pond and secondary filter pond.

The invention relates to a duct type multi-rotor tethered drone and a control system thereof, belongs to the field of drones, and aims to solve the problems that existing drones are short in flight duration and prone to crash due to the fact that the rotors of the drones are exposed. The duct type multi-rotor tethered drone is characterized in that the an inner central pipe is connected with an outer duct pipe through a group of guide vanes, a group of carbon fiber pipes is fixedly mounted on the outer wall of the lateral side of a block formed by central plates, the middle section of each carbon fiber pipe is fixed with the wall of the duct pipe, and an auxiliary rotor is mounted at the tail end of each carbon fiber pipe through an auxiliary motor; a hardware control system is mounted onthe upper surface of the central plate block, a main motor is coaxially mounted on the lower surface of the central plate block, the main motor drives a main rotor, and a power supply system is arranged beside the main motor; the hardware control system is connected with the main motor, a group of auxiliary motors, the power supply system, a video collecting unit and an automatic pilot, and a tether is connected with the hardware control system, the main motor, the group of auxiliary motors and the video collecting unit through the power supply system. The duct type multi-rotor tethered dronecan constantly work around the clock.

The invention relates to a single sided linear induction motor used for material pipeline transportation, which adopts a long primary type and a short secondary type. The long primary single sided linear induction motor (11) comprises iron cores (111) with tooth slots by superimposing multi-phase armature windings (112) and silicon steel sheets. The long primary single sided linear induction motor (11) can adopt a continuous or discontinues pavement method, and the pavement method is determined by the service conditions of the motor. The short secondary single sided linear induction motor (12) can adopt a composite type and is formed by a conductor plate (121) and an iron yoke (122); or the short secondary single sided linear induction motor (12) is only made of single material, such as only the conductor plate (121) or only the magnetic conductive iron yoke (122). The invention can be used for the field of material handling, especially for the handling of minerals such as coal, ore, and the like.

The invention discloses an LED street lamp energy-saving illuminating system and method. The system includes an embedded processing unit which is connected with an LED module, an image acquisition module, a brightness adjustment module, a brightness detection module, a wireless transmission module and a solar cell module separately; the image acquisition module is back to a driving direction and is used for acquiring pedestrian and vehicle image information and transmitting data to the embedded processing unit; and the embedded processing unit receives brightness information of the brightnessadjustment module and controls a street lamp switch and brightness according to the acquired pedestrian and vehicle image information. Illuminating resource waste is reduced and traffic and security administration are assisted, and intelligent control of street lamps is realized.

The invention belongs to the technical field of a safety device in the power construction maintenance operation, and particularly relates to a multifunctional safety helmet. With the adoption of the multifunctional safety helmet, the problems of potential safety hazards resulting from unavailable direct effective communication between the personnel working at heights and the ground are mainly solved. The technical scheme is that the functional safety helmet comprises a safety helmet, wherein earmuffs are arranged on the safety helmet; an audio-video communication system is arranged on the safety helmet; the audio-video communication system is connected with a rear-end dispatching guidance server installed in a command room through wireless signals; and the audio-video communication system consists of a video collection unit, a microprocessor CPU (Central Processing Unit), an audio input-output processing unit, a radio frequency power amplifier unit, an antenna unit, a memory module unit, an Ethernet module unit and a power module unit. The multifunctional safety helmet has the advantages of simplicity in operation and convenience in use; and in addition, the safety and the working efficiency are improved for practicing personnel.

The invention relates to the technical field of punching machines, in particular to a plate material punching machine. The plate material punching machine comprises a punching rack, a punching mechanism, a correcting mechanism and a conveying mechanism, wherein the upper side of the punching rack is provided with the conveying mechanism, the middle portion of the punching rack is provided with thepunching mechanism, the punching mechanism is provided with the correcting mechanism, the punching rack comprises a rectangle frame, a balance weight bottom frame, a first vertical plate, a second vertical plate, a third vertical plate, a first steel channel and a second steel channel, and the balance weight bottom frame is arranged below the rectangle frame. According to the plate material punching machine, a second motor drives a transmission roller to rotate, plate materials on the upper side of the transmission roller can be driven to run depending on friction force, workers do not need to operate at a punching station, the operation safety is guaranteed, the plate material loading and unloading procedure is also facilitated, a punching plate and a bottom mold plate are driven to perform combination punching by adopting a method of a first motor being in engaging transmission with a first engaging plate and a second engaging plate, and the punching process and the transmission process can be separated effectively.

The invention discloses an intelligent material transferring method and an intelligent material transferring system. The intelligent material transferring method comprises the following steps: forking and transporting pallet-provided stacked materials on a roller way in a stock region by using a forklift in a loading region; sending the pallet-provided stacked materials of the stock region to a membrane removing region one by one by using a system control center; in the membrane removing region, removing each intertwined membrane of the corresponding pallet-provided stacked material; in a pallet switch region, taking down each pallet of the corresponding pallet-provided stacked material; forking and sending the pallet-removed stacked materials to a container truck in a container region by using a forklift provided with an ejector; conveying the empty pallets to a pallet recycler by using a roller way conveyer. By adopting the method and the system disclosed by the invention, the overall transfer process is approximately intelligent, and nearly no manual transportation is needed, so the labor cost is greatly lowered, hidden dangers of accidents existing during a working process are nearly avoided, and the work efficiency is greatly improved.

The invention relates to an emergency opening/closing operation mechanism of high-voltage switch equipment, comprising an opening button, a control button and a closing button on a supporting plate, wherein the control button is connected with a dialing plate; an upper revolving supporting plate is hinged with the supporting plate; an upper revolving shaft is provided with a torsional spring; an upper push rod sleeved with a spring is arranged on an upper end plate of the upper revolving supporting plate and an upper clapboard; when the upper push rod and the opening button are in the same axis, two ends of the upper push rod correspond to the opening button and an opening switch on a breaker panel respectively; a lower revolving supporting plate is hinged with the supporting plate; a lower revolving shaft is provided with a torsional spring; a lower stop pin fixed on the lower revolving shaft corresponds to a lower dialing plate of the dialing plate; a lower push rod sleeved with a spring is arranged on a lower end plate of the lower revolving supporting plate and a lower clapboard; and when the lower push rod and the closing button are in the same axis, two ends of the lower push rod correspond to the closing button and a closing switch on the breaker panel respectively. The emergency opening/closing operation mechanism has a reasonable structure, can completely solve the problem of wrongly touching the opening/closing buttons, and can improve the operation safety.

The invention provides an elevator car stop detection system. The elevator car stop detection system comprises an elevator shaft, a shaft door, a camera, an elevator car, an elevator car detection circuit, a location marker, an image comparing device, a controller and an alarming machine, wherein the camera is arranged at the sidewall of the elevator shaft; the location marker is arranged at a locating surface of the elevator car and is arranged opposite to the camera. The invention also provides a detection method of the elevator car stop detection system. The image comparing device of the elevator car stop detection system provided by the invention is used for comparing an actually-shot image fed back by the camera with a location marking height in a pre-stored marking image so as to detect whether the elevator car is stopped at a correct position, and the alarming device is used for reminding a background maintenance worker to repair the elevator and reminding a passenger not to take the elevator, so potential accident hazards of the elevator are reduced.

The invention discloses a three-dimensional visualization risk intelligent management and control integrated system and method for a chemical industry park, and the system comprises a real-time monitoring module which is used for obtaining environment information, monitoring information, production process information and hazardous chemical substance storage information in a park and a park risk management and control module which is used for preprocessing the information collected by the real-time monitoring module, obtaining preprocessed data, analyzing the preprocessed data, obtaining a risk identification result of each disaster accident, and carrying out risk assessment on the identified disaster through a coupling risk assessment algorithm, obtaining a coupling risk assessment result of the multi-disaster accident or a risk assessment result of the single-disaster accident, and obtaining an optimal evacuation path according to the coupling risk assessment result of the multi-disaster accident or the risk assessment result of the single-disaster accident. Intelligent risk management and control of the chemical industry park are realized, the safety management level of the chemical industry park is effectively improved, and the accident risk is reduced.