289results about How to "Avoid causing safety accidents" patented technology

The invention discloses a safety system of a school bus. The safety system of the school bus comprises a bus body and a compartment. Passenger seats and a driver seat are arranged in the compartment. The safety system of the school bus is characterized by comprising a passenger locking prevention device, safety belt self-locking devices, a rollover prevention device, a driver state monitoring device and a main control device. By means of the passenger locking prevention device, the situation that a bus is locked when not all passengers leave the bus is effectively avoided, and ventilation, warning and other operations can be conducted automatically once it is found that passengers are trapped in the bus so that the life risk of the passengers trapped in the bus can be reduced; the potential safety hazard caused when a passenger does not tightly lock a safety belt is reduced through the safety belt self-locking devices; the rollover risk of the bus is reduced through the rollover prevention device; and the driver state monitoring device monitors the driving state of a driver and reminds the driver in time, and accordingly the situation that safety accidents are caused due to impaired concentration of the driver is avoided. Thus, the safety performance of the school bus can be greatly improved, the probability of occurrence of safety accidents is lowered, and the practical value is extremely high.

The invention discloses a train temporary speed-limiting method based on a self-organizing network. The method comprises the following steps of: dividing a train line into a plurality of sections, paving a plurality of wireless nodes and a data convergent point in each section, and assigning the corresponding node as the speed-limiting node by a train running control center through the data convergent point. When the train passes through the target section, a train responding device generates a train arriving signal, and all normal operation nodes in the target section can receive the signal. When the train passes through the position in which each node is located, the train responding device collects the speed-limiting information generated by the speed-limiting node and sends the information to a train master control device in order to control the traveling speed. Compared with the prior art, the method based on self-organizing network can realize that the speed-limiting command is quickly issued, the speed-limiting information is accurately configured, the manual patrol workload is reduced, the road station information is accurately reported to the control center in time, and the traveling safety of the train is enhanced.

The invention discloses a washing machine control method and a washing system. A washing machine can be controlled through an intelligent terminal, when the intelligent terminal controls the washing machine, identity authentication is needed and comprises the two modes of human body characteristic authentication and password authentication, when the washing machine detects that human body characteristic authentication of a user is successful, the user is authorized with rights of administrators, when the washing machine detects that password authentication of a user is successful, the user isauthorized with generic rights, and the rights of administrators have more control functions compared with the generic rights. According to the method, the safety of the washing machine is greatly improved, hacker attack manipulation is prevented, the users are authorized with different control rights according to different authentication modes, safer and more comprehensive control functions can be provided for the users conveniently, and use of the users is facilitated.

The invention discloses a remote control system for temporary ground wires, comprising a management server, a detection locking mechanism, a communication server and a ground wire. The management server and a five-prevention management host are connected by a ground wire identification code and locking attachments on the ground wire. The remote control system has the following beneficial effects: a non-contact online detection state is adopted, contact and wear are avoided, the service life is long, and unlocking operation is verified in multiple ways to prevent safety accidents caused by personal failure of staff. Moreover, storage, unlocking and positions of ground wires of a plurality of substations can be monitored and managed in real time.

The invention discloses a high-energy multi-state low-temperature ionizer, comprising an internal electrode and an external electrode, wherein the internal electrode and the external electrode are respectively connected with a power supply. The internal electrode and the external electrode are both tubular structures, and a hollow cavity of the internal electrode is a cooling channel; two ends of the internal electrode and two ends of the external electrode are respectively provided with an electrode support, and the two ends of the internal electrode and the two ends of the external electrode are respectively fixed on the electrode support; the internal electrode is sleeved in the external electrode, and an ionization channel is formed between the external surface of the internal electrode and the internal surface of the external electrode; two ends of the ionization channel are respectively provided with an aerial fog input port and an aerial fog output port, and the aerial fog input port and the aerial fog output port are respectively communicated with the ionization channel. The ionizer provided by the invention is simple in structure and convenient to use, the cooling channel is formed at the center of the internal electrode, when working, the cooling channel can cool the ionization channel so as to generate a large amount of low-temperature plasmas, the cooling effect is better, and the generated plasmas have high energy charge.

The invention provides a production method of a water-soluble phenolic resin cross-linking agent used for water shut-off and profile control of an oil field. The method comprises the following steps of: sequentially adding methanal, phenol and sodium hydroxide to a reaction kettle and mixing to obtain a mixed material, wherein a mass ratio of methanal to phenol is (2.12-2.57):1; pumping the mixed material in the reaction kettle into a cooler; cooling the mixed material to flow back to the reaction kettle; and performing circulating cooling to allow the temperature of the mixed material in the reaction kettle not to be changed any more. According to the method, heat generated by a reaction is radiated by the cooler timely, so that a reaction between methanal and phenol is mainly a primary reaction, and is prevented from being transited to tertiary hydroxyphenol and quaternary hydroxyphenol; end products are mainly primary hydroxyphenol and secondary hydroxyphenol, and a small amount of free aldehyde and free hydroxyphenol; and the activity of the cross-linking agent for forming weak gel with HPAM (Hydrolyzed Polyacryamide) is improved.

The invention relates to an ice cream self-service vending machine. The machine comprises a frame, a front door and a side door which are opened or closed along the frame, a main machine supporting plate which is fixed at the middle part of the frame, wherein an ice cream main machine is fixedly arranged at the upper end of the main machine supporting plate, a refrigeration module is arranged below the main machine supporting plate, a cup dropping mechanism is arranged on one side of the ice cream main machine, a feeder is arranged on the other side of the ice cream main machine, a transmission mechanism is arranged below the cup dropping mechanism, a slurry feeding mechanism is arranged on one side of the feeder, a discharging mechanism fixed on a front door is correspondingly arranged below the slurry feeding mechanism, an operation panel and a face recognition payment system is fixedly installed on the front door, and inner side walls of the front door and the side door are both provided with constant-temperature foaming plates; according to the ice cream self-service vending machine, the refrigerating module is arranged below the inner part of the frame, so that the integral sealing and freezing of the ice cream self-service vending machine are realized by adopting the constant-temperature foaming plate matched with a metal plate at the outer side of the frame, the low-temperature and sterile environment in the cabinet body is ensured, raw materials for making the ice cream, including frozen raw materials, fruit pulp or cream, sugars, oatmeal, etc., are prevented from being deteriorated.

The invention belongs to the technical field of a plug and a socket, specifically to a light-sensitive and anti-electric-shock socket and plug. The light-sensitive and anti-electric-shock socket and plug comprises a body, a panel and a control module; a channel is formed between the body and the panel, and the channel is connected with each jack; a storage room is arranged at one end of the body; a reel is mounted in the storage room, and the reel is wound with a dust-prevention band; the dust-prevention band is positioned in the channel; the free end of the dust prevention band is fixed at one end, far from the storage room, of the body; an electrode sheet is arranged on the upper part of each jack; a light sensitive module is arranged on the lower part of each jack; the light sensitive module comprises a light source and multiple light receivers; the light source and the multiple light receivers are arranged on the opposite two sides of the jack respectively; a slot is formed in the panel, and clamping units are mounted on the left and right sides of the slot; and light holes are formed in the pin of the plug. By adoption of the light-sensitive and anti-electric-shock socket and plug, safety accident caused by a condition that a child inserts a foreign matter in the jack can be effectively prevented, so that safety use performance can be improved; and meanwhile, by virtue of the setting of the dust prevention band, the plug can pop up from the jack, so that convenient operation by a user can be achieved.

The invention discloses a billet discharge system of a square billet continuous casting machine and a billet discharge control method thereof, and belongs to the field of steelmaking continuous casting. The billet discharge system comprises a hot delivery roller way, a first billet discharge cooling bed, a transition roller way and a second billet discharge cooling bed. The outlet end of the hot delivery roller way is provided with an aligning and steel pushing steel machine, the steel pushing direction of the aligning and steel pushing machine is perpendicular to the delivery direction of thehot delivery roller way, the aligning and steel pushing machine pushes a fixed-sized casting billet onto the first billet discharge cooling bed, and the conveying direction of the first billet discharge cooling bed is consistent with the steel pushing direction of the aligning and steel pushing machine; and the transition roller way is arranged at the outlet end of the first billet discharge cooling bed, the conveying direction of the transition roller way is perpendicular to the conveying direction of the first billet discharge cooling bed, the conveying direction of the second billet discharge cooling bed is perpendicular to the conveying direction of the transition roller way, and a collecting rack is arranged at the outlet end of the second billet discharge cooling bed. The system solves the problem that in the prior art, due to the limitation of production space, a conventional billet discharge system of the square billet continuous casting machine cannot be arranged normally, and process production requirements and automation control can be met.

The invention provides an explosion-proof valve type oil port of a front telescopic sleeve hydraulic oil cylinder of a dumper. A valve element is arranged in the oil port. A connecting shaft is arranged in the center of the valve element. One end of the connecting shaft stretches out of the valve element and is provided with an adjustment nut. The middle of the connecting shaft is located in the valve element and sleeved with a spring. A cover plate is arranged between the spring and the other end of the connecting shaft. The cover plate forms a telescopic movable component on the connecting shaft through the spring. Four to eight through oil ducts are formed in the valve element. Openings of the oil ducts are located in the coverage area of the plane of the cover plate. According to the explosion-proof valve type oil port of the front telescopic sleeve hydraulic oil cylinder of the dumper, the explosion-proof valve type oil port is formed through the combined action of the oil ducts, the connecting shaft, the spring and the cover plate in the valve element, in this way, even if an accident happens, the oil cylinder can be prevented from falling back or can fall back slowly, and safety accidents are avoided. A big box containing goods is prevented from falling on a crossbeam of the dumper rapidly, and thus safety accidents are avoided. By the adoption of the novel structure, potential safety hazards are reduced, and the safety coefficient of a hydraulic system is increased.

The invention belongs to the technical field of coal mine underground transportation equipment, so as to solve the problems of low tunneling efficiency, large roof damage, high tunneling cost and thelike caused by the need for repeated support of an existing self-moving machine tail. The invention provides a belt conveyor self-moving machine tail for lapping joint with a swing type rapid tunneling system. The belt conveyor self-moving machine tail comprises a power frame, a machine tail frame and a plurality of sections of intermediate frames hinged in sequence from beginning to end, whereinlifting mechanisms are respectively arranged on two sides of the power frame body, the machine tail frame body and each section of intermediate frame body; and two deflection adjusting mechanisms capable of lifting along with the frame body are symmetrically arranged at the front and rear of the bottom of the power frame body. The self-moving machine tail can realize the functions of lifting, pushing and deflection adjustment through a hydraulic system, can reduce the auxiliary transportation operation time, improve the tunneling efficiency, reduce the labor intensity of workers, and realize efficient and rapid tunneling of coal roadways.

The invention belongs to the technical field of automobile braking systems, and discloses a multifunctional braking alarm control system and method. In the braking process, braking hydraulic pressureacts on a braking pad to generate frictional force, and braking is achieved; heat is generated through friction, so that the temperature of the braking pad is increased, through temperature changing,a resistance value of a temperature sensor is changed and transformed into an electrical signal, and the braking situation is reflected. When the temperature is changed abnormally, the signal is transferred to a single chip microcomputer processor, and alarming is conducted; when the braking pad is rubbed and worn to a limit position, a sensing line is rubbed so that bonding can be conducted on the sensing line and a braking disc, the signal is transferred to the single chip microcomputer processor, and alarming is conducted; and when the system pressure is over low, alarming is conducted. According to the multifunctional braking alarm control system and method, braking is effectively monitored, alarming is conducted on the braking pad which is worn to the limit, alarming is conducted whenthe braking pad is overheated in the locking process of a braking system, the braking hydraulic pressure is monitored, the braking pressure is displayed, when the pressure is insufficient, alarming is conducted, and a driver is reminded through alarming.

The invention discloses a farmland prevention and cure unmanned aerial vehicle and belongs to the technical field of unmanned aerial vehicles. The problems that an unmanned aerial vehicle in the priorart is poor in bumpy ground adaptability and likely to be damaged are solved. The farmland prevention and cure unmanned aerial vehicle comprises a wing head. Wing arms are connected to the side faceof the wing head and connected with wing fins. The farmland prevention and cure unmanned aerial vehicle is characterized in that the side face, below the wing arms, of the wing head is connected withtake-off and landing buffer arms, each take-off and landing buffer arm comprises an upper connecting rod with one end hinged to the wing head, the other end of each upper connecting rod is hinged to alower connecting rod, each upper connecting rod and the corresponding lower connecting rod are connected with spring connecting rods, and a buffer spring is connected between every two spring connecting rods. The farmland prevention and cure unmanned aerial vehicle is high in ground adaptability, capable of taking off and landing on the complex ground, high in safety and convenient to use.

The invention discloses a robot and a control method. The robot comprises a body, a moving mechanism, an emergency stop mechanism and a body adjusting mechanism, the moving mechanism drives the body to move, the emergency stop mechanism comprises a connecting frame, a sliding rod, a sucker seat, a compression spring, a sucker, a cylindrical cam, a pulley shaft, a pulley, a driven stop gear, a driving stop gear, a stop motor and a solenoid valve, and the body adjusting mechanism comprises a fixed frame, a fixed column, a pitching motor seat, a pitching motor, a primary framework, a secondary framework, a rack, a telescopic motor and a rack driving gear. The emergency stop mechanism can achieve the emergency stop function of the robot under emergency circumstances such as pedestrians, animals and carts in the rapid movement process of the robot, and safety accidents caused by knock into the pedestrians and the like are prevented. The emergency stop mechanism can further prevent the robotfrom turnover due to over-high gravity center and dynamic change in the cargo handling process.

The invention discloses an electroencephalogram information monitoring device and method for an intelligent safety helmet, and belongs to the technical field of electric appliances. A helmet lining isinstalled in an inner cavity of the intelligent safety helmet, three helmet lining contact sensors are distributed on the helmet lining, the helmet lining contact sensors are connected with an electroencephalogram information processor, the electroencephalogram information processor is connected with a safety helmet main board, the safety helmet main board is connected with a transmitting module,the transmitting module is connected with a commanding and dispatching desk, and the safety helmet main board and the transmitting module are connected with the intelligent safety helmet. The invention has the advantages that the electroencephalogram information acquisition sensor contacts are adopted; a user wears the device conveniently and comfortably, information collection is accurate and comprehensive, collected data are compared and analyzed with normal physiological indexes of the human body, an alarm is given immediately when physical sign abnormity such as uncapping, sobering, fatigue, sleeping and coma of the operator is found, beforehand prevention can be actively achieved, and safety accidents caused by physical reasons of the user are effectively avoided.

The invention relates to a method for detecting abrasion of a robot joint electromagnetic brake. The method comprises the steps that a joint moves for a distance according to same motion parameters when the brake is in a start state and a shutdown state respectively, and joint load torque, speed reducer friction torque and a brake torque sum value curve generated when the brake is in the shutdownstate are obtained; the difference of torque sum values obtained in the two states respectively is obtained at a speed and position matching position to obtain the brake torque of the brake; and the measured brake torque is compared with a safe threshold to judge the abrasion condition of the brake. Compared with the prior art, the method has the beneficial effects that sensor detection is not used, so that the difficulty of installing a sensor in a narrow space is avoided; and the brake torque of the brake can be directly measured without disassembling the joint or even disassembling the brake, state monitoring of the robot joint brake is realized, and anomaly feedback is provided.

The invention relates to an indicating board with a cleaning function and high safety performance. The indicating board comprises a main body, an information board, a support rod and a bracket, wherein one side of the main body is fixedly connected with one end of the support rod, one end, far away from the main body, of the support rod is fixedly connected with the top end of the bracket, the bracket is vertically arranged, the information board is arranged on the main body, the main body is provided with a protection mechanism, the protection mechanism is arranged at one side, far away fromthe information board, of the main body, a cleaning mechanism is arranged on the information board, the protection mechanism comprises a drive assembly and an execution assembly, and the drive assembly comprises a drive motor, a worm, a bearing block, a worm wheel, a rotation shaft, a rocking bar and a push rod. For the indicating board with the cleaning function and high safety performance, through the protection mechanism, the function of removing ice cones is realized, so that the safety accidents caused by falling of the ice cones are avoided, moreover, through the cleaning mechanism, thefunction of cleaning the indicating board is realized, and thus the phenomenon that the information display effect of the indicating board is influenced due to dust accumulation is avoided.

The invention discloses a new energy vehicle charging device which comprises a pile body, a charging wire and an installation frame installed on the ground of a parking space. The charging wire comprises a first plug and a second plug. The first plug and the second plug are connected through the connecting wire. A first installation groove is formed in the pile body. A second installation groove is formed in the inner wall of the first installation groove. A first piston cylinder is fixedly connected with the inner wall of the second installation groove. A control mechanism for controlling thefirst piston cylinder to act is arranged in the installation frame. The two ends of the charging wire can be firmly connected with the pile body and a vehicle respectively in the charging process ofthe vehicle, the safety accidents caused when the charging plugs are disengaged are avoided, the connection between the charging wire and the vehicle cannot be locked when people forget to take down the charging wire and drive away the vehicle, the charging wire can be pulled out under natural stress and is prevented from damage.

The invention discloses a straw board manufacturing and production device good in safety. The straw board manufacturing and production device comprises a cutting box and a cross beam; the two sides ofthe bottom of the cross beam are fixedly connected with supporting frames; the bottoms of the supporting frames are fixedly connected with the cutting box; and a sliding hole is formed in the bottomof the cross beam. With the adoption of a first motor, a threaded rod, a threaded sleeve, a first electric telescopic rod, a second motor and a cutting piece, the effect of cutting a straw board is played, and the effect of adjusting the cutting height is played; with the adoption of a dust suction pump, the effect of collecting waste chippings generated by cutting is played; with the adoption ofan infrared emitter and an infrared receiver, the effect that the dust suction pump can follow the second motor to move to suck dust is played; and the problems that existing cutting equipment is toosimple, the waste chippings generated during straw board cutting splash into eyes of workers easily, the health of the workers is harmed, the safety is poor, and the safety production concept is not conformed are solved.

The invention provides a medical bed structure. The structure includes a bed body and a mattress assembly arranged on the bed body, wherein the mattress assembly includes an upper bed board and a lower bed board which are arranged on the upper position and the lower position, the bottom surface of the upper bed board is a bevel and provided with a sliding rial, the top surface of the lower bed board is also a bevel and provided with a sliding groove, and the upper bed board can slide in a side direction opposite to the lower bed board; the side borders of the two ends of the top surface of the upper bed board are provided with assembling grooves respectively, each assembling groove is internally provided with a locking mechanism, a first pin hole is formed in the center of the bottom of each assembling groove, a second pin hole coaxially corresponding to the first pin hole is formed in the lower bed board, each locking mechanism comprises a locking pin capable of being inserted into the first pin hole and the second pin hole and a handle fixedly connected to the top surface of the locking pin, and by pressing and rotating the handles, the upper bed board and the lower bed board can be relatively and tightly locked and can not move. According to the medical bed structure, since the upper bed board in the mattress assembly can slide in the side direction opposite to the lower bed board, a patient can be conveniently transferred from a transferring bed of an operation room to a normal hospital bed of a normal ward.

The invention discloses a stable supporting system for a big data server. The system comprises a bottom cabinet; a sliding groove is formed in the top of the wall of the bottom cabinet; a top cabinetis slidably connected to the inner wall of the sliding groove; a threaded hole is formed in the bottom of one side of the top cabinet; a screw rod is screwed to the inner wall of the threaded hole; amotor is connected to the bottom end of the screw rod; a mounting opening is formed in the center of the bottom of the bottom cabinet; and an exhaust fan is fixed to the mounting opening. By using thebottom cabinet, the top cabinet, the screw rod and the motor, a cabinet is telescopic, the height of the cabinet is reduced, the cabinet is convenient to install and carry; the interior of a cabinetbody can be subjected to destaticizing treatment by using a destaticizing ion rod and a high-voltage generator; by using a water tank, an air inlet pipe, a spiral pipe, a silica gel desiccant, an oilfilter element, an activated carbon filter screen, filter cloth, a cooling fan and a semiconductor refrigeration chip, air entering the cabinet body can be subjected to drying, oil removal and coolingtreatment, so that the operation effect of the server is better, and the operation efficiency of the server is improved.

The invention discloses aluminum alloy profile stamping equipment which comprises a base and a box body. A lifting plate is arranged between the base and a top plate; sliding grooves are symmetricallyformed in the bottom of the lifting plate; sliding blocks are arranged in the sliding grooves; the sliding blocks are in sliding fit with the lifting plate; extrusion forming blocks are symmetricallyarranged; force bearing columns are arranged at the bottoms of the extrusion forming blocks in a floating mode; and a stamping part is jacked upwards, so that the overpressure phenomenon of the stamping part is prevented, meanwhile, the problem that the stamping part and a stamping module are tightly attached and are difficult to separate after stamping is avoided, the labor intensity of workersis reduced, and the production efficiency is improved. Protective plates are symmetrically arranged, and power is provided by utilizing up-down movement of a lifting platform, so that the protective plates are opened and closed along with starting and finishing of the stamping action, personnel injuries caused by splashing of stamping chippings in the stamping process are prevented, meanwhile, major safety accidents caused by misoperation of production personnel are prevented, and the safety of the whole equipment is improved.

The invention provides an automobile maintenance prompting system. The automobile maintenance prompting system comprises an automobile electronic control unit (ECU), a bus interface module, a communication module, a data collection module, a data processing and analysis module and a maintenance prompting module. The invention further provides an automobile maintenance prompting method. The automobile maintenance prompting method comprises the following steps that 1, communication connection is built; 2, a diagnosis fault code and automobile state parameters in the automobile ECU are collected; 3, whether the diagnosis fault code is collected or not is judged; 4, if the diagnosis fault code is collected, the fault information is extracted according to the diagnosis fault code, the maintenance prompting module displays the fault information, and the step 6 is carried out; 5, if the diagnosis fault code is not collected, the step 6 is carried out; and 6, the collected automobile state parameters are processed and analyzed, the maintenance prompting module displays automobile maintenance suggestions according to an analysis result. The automobile maintenance prompting system and method can provide maintenance prompts based on the current state of an automobile, thereby effectively reducing resource waste, ensuring maintenance timeliness and avoiding safety accidents caused by poor car conditions.