73results about How to "Personal Safety Protection" patented technology

The invention relates to an earthquake fire indoor risk-avoidance self-rescue device and a method thereof which can provide a risk-avoidance self-rescue chance for people who are trapped in a house and are difficult to escape when in a heavy earthquake or a fire disaster. The device and the method comprise an arc-shaped steel plate which has a rotary fan, a storage device and an upright column atboth sides, and an arc-shaped steel plate which has a rotary fan at one side, and a pothook, an upright column and a protection fastener at the other side; a steel pipe which has a screw hole in the middle and a steel column inserted into each end penetrates the arc-shaped steel plate; another steel column and the arc-shaped steel plate which has a rotary fan at one side, and a pothook and a protection fastener at the other side constitute a risk-avoidance space which can be stretched and retracted; the device and the method are provided with a battery, a light bulb, an alarm, a high-pressurepump, etc. When heavy earthquake happens, a steel ball and a spring, a steel wire and a vibrator cause the light to turn on due to the shake, and lead the alarm to give an alarm and to stretch the risk-avoidance space, then people can avoid risk, survive by water, food and paper, and can realize self-rescue by using the high-pressure pump to remove the steel column after enter the risk-avoidance space; when in a fire disaster, people can use water and respirator to protect the body and escape after entering the risk-avoidance space. The device and the method solve the problem that people can not escape and are smashed or burned to death since the houses are ruined and knocked down in a heavy earthquake and a fire disaster, which can be widely used for the human body safety protection in the house when in the heavy earthquake and the fire disaster.

The invention relates to a high-altitude fall protection device, which includes a three-axis acceleration sensor, a main control circuit, an ignition drive circuit, an igniter, a gas generator and a safety airbag, wherein the three-axis acceleration sensor detects acceleration and transmits the acceleration signal to the main engine. Control circuit; the main control circuit receives the acceleration signal and sends the ignition enable signal to the ignition drive circuit; the ignition drive circuit receives the ignition enable signal and sends drive power to the igniter; the igniter is built into the gas generator and can detonate the gas generator The ignition agent in the gas generator; the gas generator is filled with the ignition agent and the gas generating agent, and the outlet of the gas generator is connected with the safety air bag; the safety air bag includes more than one safety air bag, each safety air bag is folded and curled in a backpack, and the backpack is opened There are air bag ejection openings for each air bag ejection. The invention has the advantages of simple structure and convenient use, can effectively reduce the damage caused by falling from high altitudes, and guarantee the safety of personnel working at high altitudes.

The invention discloses an automatic platform cover plate opening and closing device of a wind turbine generator tower frame, a system and a method, and belongs to the field of auxiliary equipment of wind turbine generators. The automatic platform cover plate opening and closing device comprises a platform cover plate, a drive device and a monitor device. The drive device is used for driving the platform cover plate to be opened and closed. The monitor device comprises a controller and proximity detectors connected with the controller. The proximity detectors are fixed to the inner wall of the tower frame and used for monitoring operating tendency data of a climbing-free device. The controller is used for judging the operating tendency of the climbing-free device according to the monitored operating data of the climbing-free device and used for controlling the drive device to achieve automatic opening and closing of the platform cover plate according to the judgment result. According to the automatic platform cover plate opening and closing device of the wind turbine generator tower frame, the system and the method, the car body position of the climbing-free device can be monitored and judged through the monitor device, automatic opening and closing of the platform cover plate are controlled according to judgment, and the personal safety risk is reduced.

The present invention provides an improved engine-driven generator which can normally alarm or / and shut down an engine when CO concentration exceeds a standard, and also shut down the engine when a COalarm is removed. The improved engine-driven generator comprises an engine; and the CO alarm which is connected with the engine ignition device and used for detecting the CO concentration in the environment near the engine, generating a signal according to the CO concentration change and sending the signal to the ignition device so as to control the ignition device to ignite, wherein the CO alarmis arranged to send out a flameout signal to enable the ignition device not to ignite when the detected CO concentration is larger than or equal to the preset concentration, or, when the signal transmission is interrupted, the ignition device does not ignite. Based on the same purpose, the invention also provides a control method of the engine-driven generator and also provides the CO alarm.

The invention discloses an improving method and a bell-mouthed type air ventilation structure of an air vent of a down-hole plane gate. A section of bell mouth is formed in the lower end face of a door lintel between lintel separation plates of a gate to serve as an air ventilation port. The lower end face of each section of bell mouth is flush with, welded and fixed to a lintel bottom plate. A round hole in the upper end of each section of bell mouth is directly connected with a round perpendicular steel pipe pre-buried in first stage concrete to form a bell-mouthed type air vent. The top endof the round perpendicular steel pipe is located at the top of a gate well and connected with a bulb type air ventilation cover through a flange, and round air vents are formed in the bulb type air ventilation cover. The top end of the round perpendicular steel pipe communicates with the outer edge of the downstream position of a vertical well through a bending pipe with the bending angle being larger than or equal to 90 degrees. According to the bell-mouthed type air ventilation structure, the lintel section can be inflated or deflated, occurrence of the phenomena that the gate vibrates andthe lintel section is cavitated is reduced, and guarantee of safe operation of the gate is facilitated.

The invention relates to an engine bin built-in type fire extinguishing device. The engine bin built-in type fire extinguishing device is composed of a fire extinguisher steel cylinder in an engine bin and a fire extinguisher starting handle in a driving bin; the fire extinguisher steel cylinder in the engine bin is fastened onto the bin wall by a bridle; and a locking valve pin of a first extinguisher valve of the fire extinguisher steel cylinder penetrates through the bin wall through a pull wire and is connected with the fire extinguisher starting handle arranged in a driving chamber. The fire extinguisher valve is installed on the top of the fire extinguisher steel cylinder; when the locking valve pin is pulled out by the fire extinguisher starting handle in the driving bin through thepull wire, a starting spring jacks up a valve rod, and a valve plug is pulled to move up into a valve body above a spray nozzle. According to the engine bin built-in type fire extinguishing device, when a fire disaster in the automobile engine bin is put out, it is not needed to open an automobile engine bin cover, personnel are not needed to get close to a fire source for operation, and injuriesto the personnel are reduced; and meanwhile using and operating steps are simple, a fire extinguisher can be fast started within short time, and the fire extinguishing effect is good.

The invention provides an interior design companion ladder used for an assembly building. The ladder comprises a left fixing rack, a right fixing rack and a bottom rack, the left fixing rack and the right fixing rack are arranged at the left end and the right end of the bottom rack respectively and are perpendicular to the bottom rack separately, the bottom rack is of a frame-shaped structure, theleft end and the right end of the bottom rack are each provided with a protruding fixing part, the left fixing rack and the right fixing rack are fixedly connected with the fixing parts respectivelythrough screws, and vertical slide ways are arranged on the opposite sides of the left fixing rack and the right fixing rack respectively. The interior design companion ladder is simple in structure and convenient to operate, and allows workers to ascend or descend to take tools conveniently.

The invention discloses an automatic open-close platform cover plate device of wind turbine generator tower and a system and a control method thereof, which belongs to the field of generating set auxiliary equipment. The automatic open-close platform cover plate device comprises a platform cover plate, a driving device and a monitoring device, wherein the driving device is used for driving the open and close of the platform cover plate and comprises a driving motor, a driving shaft and a driving shaft sleeve matched with the driving shaft, the platform cover plate realizes open and close under the drive of the driving motor, the driving device also comprises a support plate for supporting the driving shaft and the platform cover plate, and a damping hinged plate is arranged at the connection site of the support plate and the platform cover plate; and the monitoring device comprises a controller and a proximity transducer connected with the controller, the proximity transducer is used for monitoring the running data of a climb free device, the controller is used for judging the running trend of the climb free device and controlling the automatic open and close of the platform cover plate according to the judgment results. The automatic open-close platform cover plate device disclosed by the invention monitors and judges the position of the climb free device through the monitoring device, and controls the automatic open and close of the platform cover plate according to the judgment, so as to reduce the personal safety risk.

The invention belongs to the field of power systems, and particularly relates to a transformer monitoring alarming system, which comprises a monitoring part, a calculation part and a result display part, wherein the monitoring part comprises a temperature monitoring part, a vibration monitoring part, a grounding current monitoring part, a local discharge monitoring part, a gas chromatography monitoring unit and a water content in oil monitoring unit, and the units are connected with the calculation part; and the result display part comprises a motor connected with the calculation part, a filter arranged on the rotation shaft of the motor, a parallel beam light source arranged parallelly with the rotation shaft of the motor, a beam splitting glass plate arranged on an emergent light path of the parallel beam light source and a liquid storage tank. The calculation part is used for calculating the monitoring result of the monitoring part, a liquid column height in a pipeline in the result display part is used for displaying the result, a non-professional person can understand the result, popularization and application of the method are facilitated, the monitoring result can be presented in the field, and field maintenance and repair are facilitated.

The invention relates to an estimation method and system for the torque of a brake of an elevator traction machine. The estimation method comprises the following steps: when an elevator enters the sleep state and is in a preset brake detection cycle, entering a brake detection mode, and controlling the brake to hold tightly; driving an elevator inverter to apply preset driving torque to the elevator traction machine; collecting slide pulse numbers sent by an encoder of the elevator traction machine in real time, and obtaining the output current value of the elevator inverter; according to the slide pulse numbers and the output current value collected in the period of time of applying the preset driving torque, calculating the size of the torque of the brake; when the obtained torque of the brake is smaller than the rated torque of the brake, controlling the elevator to stop running or generating a warning fault report. For the condition that the torque of the brake is not enough, the method reports the fault and prompts and informs the elevator maintenance personnel to repair the elevator brake, therefore effectively protecting the safety of passegers.