234results about How to "Protect life safety" patented technology

The invention discloses an on-vehicle electronic warning system for road safety, comprising a wireless broadband special network established at the side of the road. The wireless broadband is composed of a road-side wireless signal transmitting tower, road-side optical cables and a database computing center and is used for receiving operational data of each vehicle on the road while uninterruptedly sending road feature data to each vehicle. An on-vehicle road safety electronic shield terminal arranged in the vehicle uninterruptedly transmits vehicle locations, time and speed data computed by a satellite and land station signals to the database computing center of the road-side wireless special network subsequent to the reception of a positioning signal from a global positioning system so that all the vehicles share the positioning data, meanwhile, the terminal uninterruptedly receives and reads the road feature data sent by the wireless broadband special network during the traveling, and sends, in case that the distance between vehicles are too close or the vehicle is about to deviate from own traffic lane, warning information to related drives in order to avoid traffic accidents such as vehicle rear-end collision, deviation from the roads, side collision, etc.

The invention discloses a cutting type diaphragm gas meter and belongs to a gas meter. The cutting type diaphragm gas meter comprises a base meter body, wherein a gas inlet and a gas outlet are arranged on the base meter body; a cutting valve is mounted at the gas inlet; the gas meter further comprises a signal acquisition treating circuit and a cutting type diaphragm gas meter terminal microcomputer controller; the signal acquisition treating circuit is connected with the cutting type diaphragm gas meter terminal microcomputer controller; the cutting valve is connected with the cutting type diaphragm gas meter terminal microcomputer controller through a cutting valve control circuit; the signal acquisition treating circuit is used for acquiring the flow of fuel gas flowing by the base meter body in real time and timely transmitting to the cutting type diaphragm gas meter terminal microcomputer controller; and when the abnormal states, such as small flow leakage, abnormal mass flow and over long service time, of the output of the base meter body are detected, the cutting valve on the base meter body is timely turned off and a liquid crystal display screen and a buzzer are utilized to alarm, so that the burning or explosion phenomenon caused by excessive leakage of the fuel gas is avoided and the life and property of people are protected.

The invention discloses an overheating air-burn preventing device of a gas stove and a preventing method. The overheating air-burn preventing device comprises a temperature sensor, a temperature sensor control circuit, a singlechip microprocessor, a main solenoid valve and a main solenoid valve control circuit, wherein the temperature sensor is used for detecting the temperature of the bottom of a cooker; the main solenoid valve and the main solenoid valve control circuit are arranged on a main gas pipe; in addition to the traditional low-temperature flameout defensive function, the device adds intelligent high temperature protection, has sensitive sense to the cooker temperature, prevents the air burn by overheating detection and overheating curve judgment so as to achieve the effect of preventing the air burn of majority of cookers, thereby effectively preventing fire accidents caused by abnormal high temperature of the air burn of the cooker, and protecting family property and personal safety all the way. The invention has high precision, simple and stable system and relative low cost and can meet the requirement of people on using the gas stove.

The invention provides an air sampling aircraft which comprises a flight main body, a control device and a sampling device which are disposed on the flight main body, wherein the control device comprises an intelligent control module, a direction positioning module which is connected to the intelligent control module and is used to control and adjust the flying direction of the flight main body and to position the sampling device, and a power driving module which is connected to the intelligent control module and is used to driving the operation of the flight main body, and the power driving module comprises a first-grade actuator, a second-grade actuator, a driving motor, a propeller, and a driving device. Because a combined structure of the flight main body, the control device, and the air sampling device is employed, not only air samples can be collected automatically, but also the time and regional restriction is broken through; more importantly, with the automatic technology, notonly air sampling by sampling technicians is convenient, but also the life safety of sampling personnel is protected during air sampling under certain specific conditions such as regions with inaccessible and strategic terrain or a lot of toxic gas.

The invention relates to a wireless information sending and receiving system, in particular to a wireless system for sending and receiving mine safe alarming and rescue information, comprising at least a wireless information receiver, a modulator series connected with the master control computer, at least a power amplifier and antennas with the same number with the power amplifiers, wherein the modulator is used for two-way communication and transmitting data to each other with the master control computer and codes the data information from the master control computer, and then modulates the data to a myriametric wave and outputs to the power amplifier, and the myriametric wave is transmitted to the wireless information receiver via the antenna. The invention has the advantages of clear information, safe and timely, simple in using, and can rapidly build a communication and controlling method between a ground control center and underground miner's hammers for personnel dispatching and emergency rescuing, therefore improves the safe alarming property in the mine and enhances the production efficiency and security level underground.

The invention discloses a method for realizing safe travel, including obtaining the blind blind around the panoramic image; to determine the current state of blind travel; identification for security information related to the travel state from the panoramic image; according to the remote safety protection measures of the security information to start the scene or reminding device based on vehicle networking.

The invention discloses a lifesaving device by breaking windows, comprising a case, a bracket assembly, a hammer head for breaking the window and a pair of hooks controlled by a torsional spring, wherein the case wall on the front side end of the case is provided with a through hole for a hammer head to be ejected; the lower section of the inner working chamber in the case is provided with a working slope; the bracket assembly moves back and forth along the axis; the front end of the hammer head is pointed, and the rear end is provided with a bench preventing the hook from sliding down; the middle of the hook and the torsional spring are both fixed on the fixed junction plate of the bracket; the hook shape of the hook support arm causes the hook to clamp the hammer head under the normal condition; the exterior angle on the bottom end of the hook is provided with an arc angle; and the arc angle can cause the front falcula to gradually open and loosen the hammer head when the arc angle slides down if contacting with the working slope of the lower section of the working chamber in the case. The front end of the main spring is sheathed on the rear bench of the hammer head, and the rear end is propped against on the inner wall of the case of the tail part. The lifesaving device by breaking windows can conveniently and quickly break glass windows and doors during rapid-onset disasters, such as fire hazard, earthquake, traffic accidents and the like, helps people to quickly escape from dangerous sites and protects life safety of people.

The invention relates to a safety airbag capable of relieving impact when an automobile is impacted. An impact relieving principle of airbags is utilized and four independent relieving airbags are snugly added on a front bumper and a rear bumper of an automobile chassis. The relieving airbags are controlled through a distance measuring sensor, a speed measuring sensor and a control circuit. When a measured distance signal and a measured speed signal simultaneously reach set requirements, an igniter is triggered to ignite inflating agent and the relieving airbags are instantaneously inflated and popped up. At the same time, the automobile automatically implements braking to slow down speed. When collision happens, through braking to slow down speed and the impact buffering characteristic of the airbags, the impact to the automobile is greatly relieved and the goals of protecting life safety of people and preventing the property of people from being seriously damaged are realized.

The invention relates to a novel frost-free helmet which comprises a helmet body, an electrothermal wire, a power supply, a heating switch, an infrared emitter and an infrared switch. The helmet is characterized in that the electrothermal wire is arranged in a windshield on the helmet body; the power supply and the heating switch are arranged on the helmet body; the power supply is connected with the heating switch and the electrothermal wire through wires, and therefore, if people turn on the heating switch when riding a motorcycle on cold day in winter, the windshield on the helmet body can be prevented from being frosted; and furthermore, the infrared emitter is also arranged on the windshield on the helmet body, the infrared switch is arranged on the infrared emitter, and therefore, people can see surrounding things clearly at night by turning on the infrared switch when riding a motorcycle. The novel frost-free helmet is simple in structure and easy to manufacture.

The invention provides a waterproof-type rescue capsule for a mine. A capsule body of the waterproof-type rescue capsule for the mine is composed of a plurality of sections of capsule body basic units, a capsule head sealing end (1) and a capsule tail sealing end (5). The interior of the rescue capsule is divided into a transition capsule (12) and a survival capsule (13) by an isolation door (14), wherein the transition capsule (12) and the survival capsule (13) are mutually independent, and each capsule body basic unit is of a cylindrical structure formed by winding steel plates. The capsule head sealing end and the capsule tail sealing end are both arc-shaped sealing ends. The sections of capsule body basic units are connected by means of reverse flanges (9). Inverted T-shaped strengthening ribs (10) are welded on the inner wall of the capsule body. A heat insulating layer (11) covers the inner wall of the capsule body. In addition, an air curtain spraying device and a water draining system inside the capsule body are arranged inside the transition capsule. The waterproof-type rescue capsule for the mine is a full-prevention-type rescue capsule which can be used for the mine flooding environment and can also be used for other catastrophe environments. The rescue capsule is even in stress, strong in pressure-bearing capacity, simple in structural design and convenient to produce.

The invention discloses a vertical ventilating shaft anti-explosion door and a method for relieving pressure safely and performing ventilation quickly by using the door. An upper-layer umbrella-type door is overlapped on a lower-layer umbrella-type door of a conventional anti-explosion door; rupture disks are arranged on fan frames in even numbers on the umbrella surface of the upper-layer umbrella-type door; steel plates are arranged uniformly at intervals on fan frames in the same eve numbers on the umbrella surface of the lower-layer umbrella-type door; and half of the fan frames on which steel plates are not arranged form cavities. When explosion occurs underground, blast waves directly impact the rupture disks through cavities of the lower-layer door, the rupture disks crack quickly and are communicated with the atmosphere directly, so that the pressure is relieved rapidly, and the door is prevented from being deformed and damaged when impacted strongly; a ventilator is protected against impact; and after an explosion accident, the upper-layer door is rotated rapidly, the upper-layer umbrella surface which is not impacted and doesn't crack is enabled to be aligned to three cavities of the lower-layer anti-explosion door, and the anti-explosion door is sealed in time, so that mine ventilation is restored as soon as possible, and the life safety of trapped persons underground is guaranteed to the maximum extent.

The invention provides a dry-hang joint for an external wall of a fabricated building and a prefabricated external wall with the dry-hang joint. The dry-hang joint comprises a pre-buried box, a hook seat and a connecting bolt which are pre-buried in a prefabricated external wall board, wherein the side surface, facing the hook seat, of the pre-buried box is open; the hook seat is connected and fastened with a pre-buried sleeve in a building main body through the connecting bolt; the hook seat penetrates through the opening in the side surface of the pre-buried box, so as to support the whole prefabricated external wall board; the building main body comprises a prefabricated beam or a shear wall. The dry-hang joint and the prefabricated external wall have the advantages that the construction procedures are simplified; the construction progress is improved; lick bricks and decorations are prevented from flaking off from the external wall board, so that the safety performance is high; the external wall board and the decorations of the external wall board can be produced integrally in a factory, so that high-altitude decoration operation of a worker is avoided; the dry-hang bonding strength of the external wall is high; the water resistance is good; the building quality is excellent.

The invention relates to an evaluation device for a protection performance of a textile and particularly relates to an evaluation device for a stress deformation protection performance of a multifunctional textile. A human body simulator with an arc-shaped surface or an air simulator with an arc-shaped abut-joint surface, and a stretching device are adopted to realize different bending, stretching and shearing deformation states of a heat protection textile, so that the protection performance of textile deformation caused by a human body joint movable part in a work environment can be relatively really simulated; the influences of the factors, which are ignores by an existing protection performance evaluation device, on the thermal protection performance are made up; the evaluation device has the very important real meaning on protecting the life safety of staff and researching high-tech thermal protection equipment.

The invention discloses a water emergency rescue device and a water emergency rescue method for an unmanned aerial vehicle. The device comprises an unmanned aerial vehicle body in which a central controller and a wireless transmission module are arranged, wherein a holder is arranged at the lower end of the unmanned aerial vehicle, a camera and a casting device are arranged under the holder, a casting net is arranged in the casting device, an inflatable air bag is arranged in the casting net, a wireless receiving module, a microprocessor, a miniature battery and a plurality of high-pressure inflation bottles are arranged in the inflatable air bag. According to the device and the method provided by the invention, rescue efficiency when in water emergency can be improved, the problem that existing artificial rescue efficiency is low and a secondary accident is easy to occur when rescue is not timely is solved, the straight flying speed of the unmanned aerial vehicle is increased, rescue time can be greatly saved, and life safety of people falling into water is protected.

The invention relates to a vehicle-mounted navigation apparatus with an alcohol detection function, and a safe driving service system and method for an automobile. The vehicle-mounted navigation apparatus comprises a satellite positioning module, a control module which is connected with the satellite positioning module, an alcohol detection module, a wireless communication module, a voice module, a microphone and a loudspeaker, wherein the alcohol detection module, the wireless communication module, the voice module and the microphone are connected with the control module; and the loudspeaker is connected with the voice module and the control module simultaneously. The control module receives detected alcohol content information from the alcohol detection module, and compares the alcohol content information with a detection threshold, and when the alcohol content exceeds the detection threshold, the control module drives the voice module to output voice signals to the loudspeaker, and to send alarming information and the current positioning information to a background service center. By applying the device, system and method provided by the invention, the alcohol content in the automobile can be convenient to detect timely, so that when the alcohol content exceeds the detection threshold, the prompt information and alarming information can be given off, so that the safe driving service can be obtained, and the incidence of traffic safety accidents can be reduced.

The invention discloses a door opening safety reminding system and a door opening safety reminding method for vehicles, and relates to the technical field of vehicles. The door opening safety reminding system for the vehicles is used for reminding people in the vehicles to safely open doors and comprises image detection units, a door opening and closing identification unit, a vehicle speed identification unit, a central controller and a voice reminding unit. The image detection units are used for acquiring rear image data of the vehicles; the door opening and closing identification unit is used for identifying opening and closing states of the various vehicle doors; the vehicle speed identification unit is used for acquiring the vehicle speeds of the vehicles; the central controller is used for receiving the rear image data of the vehicles, comparing the rear image data with stored object information to identify target objects, receiving opening and closing information of the various vehicle doors and vehicle speed information of the vehicles, comprehensively processing the information and issuing reminding signals; the voice reminding unit is used for responding to the reminding signals, so that people can be reminded of the door opening safety by voice. The door opening safety reminding system and the door opening safety reminding method have the advantages that people in the vehicles can be effectively prevented from being collided and injured by the moving objects at the rears of the vehicles when getting off from the vehicles, and the active safety performance of the vehicles can be improved.

The invention discloses a house safety belt life-saving device which is arranged in a column/wall and beam/floor slab. The device comprises at least one flexible tensile material which sequentially comprises a fixed connection segment fixedly connected to the beam/floor slab, a buffer segment arranged in the end of the beam/floor slab, and a connection segment fixedly connected to the column/wall, wherein a clearance is remained between the buffer segment of the flexible tensile material and the beam/floor slab. The invention aims at providing the house safety belt life-saving device with simple structure, easy manufacturing and good safety, and providing a house structure constructed by adopting the house safety belt life-saving device, which has simple structure, low cost and good safety, enhances the temporary stability of buildings effectively, avoids total collapses or delays collapse time of buildings and protects the life of people in buildings. The invention also aims at providing a method for constructing the house by using the house safety belt life-saving device.

The invention discloses a medical smart sleeping headset. The medical smart sleeping headset comprises a headset body provided with a loudspeaker, wherein a central processing unit, and a power supply, a Bluetooth system, a first alarm system and a sensor which are connected with the central processing unit respectively are further arranged inside the headset body; and the first alarm system and the Bluetooth system are further connected with the loudspeaker respectively. The invention also discloses a sleep monitoring system comprising the medical smart sleeping headset. The sleep monitoring system comprises the medical smart sleeping headset, a smart phone which is wirelessly connected with the medical smart sleeping headset, and a second alarm system which is arranged on the smart phone. Through adoption of the medical smart sleeping headset and the sleep monitoring system, the blank of an effective method for effectively treating a sleep apnea syndrome in the prior art is filled up; the life safety of patients suffering from the sleep apnea syndrome is ensured effectively; a very high practical value is achieved.

The invention relates to a dynamic thermal protection performance testing and evaluating device, and belongs to the technical field of occupational safety and health. The dynamic thermal protection performance testing and evaluating device is used for fixing fabric to be tested so as to test the fabric to be tested, and comprises a support, a dynamic human body simulating device arranged on the support and used for fixing the fabric to be tested and promoting the fabric to be tested to deform, and a disaster source and a heat flux sensor which are oppositely arranged on the two sides of the dynamic human body simulating device, and a data acquisition and program control system in signal connection with the heat flux sensor, wherein the dynamic human body simulating device comprises a human body simulator propped against the fabric to be tested and a stretching device at least clamped at one end of the fabric to be tested; the human body simulator comprises a propping wall propped against the fabric to be tested; the propping wall and the disaster source are oppositely arranged on the two sides of the fabric to be tested; the fabric to be tested and the heat flux sensor are oppositely arranged on the two sides of the propping wall; the dynamic thermal protection performance testing and evaluating device further comprises a dynamic air layer changing device for driving the heat flux sensor to move relative to the propping wall.

The invention relates to the technical field of electronic equipment protection devices, and particularly relates to an electronic equipment anti-explosion protection device which comprises an anti-explosion tank body, wherein first plates are arranged around inside the anti-explosion tank body respectively; the first plates are internally hollowed; the first plates are filled with an inert gas; second plates are arranged on the inner sides of the first plates; a plurality of through holes are formed in the second plate; sliding blocks are arranged at the upper ends and the lower ends of the second plate; the sliding blocks are arranged inside chutes in the anti-explosion tank body; a plurality of conical convex burrs are arranged on one sides close to the first plates, of the second plates; a plurality of springs are arranged between the second plates and the first plates; a plurality of vent holes are formed in the bottom of the anti-explosion tank body; an air sucking fan is arranged at the bottom of the anti-explosion tank body; the air sucking fan is connected with a power supply. By adopting the electronic equipment anti-explosion protection device, storage battery explosion can be effectively prevented, fire of exploded storage batteries can be extinguished in time, force generated from explosion can be decomposed in time, and the security of people can be effectively ensured.

The invention discloses an advertising board convenient to install and fix. The advertising board comprises a supporting platform fixedly arranged on the ground, a lifting block is fixedly arranged onthe upper end face of the supporting platform, an advertising board platform is fixedly arranged on the upper end face of the lifting block, and an advertising board cavity is fixedly formed in the advertising board platform. The advertising board is simple in structure and convenient to use; when the advertising board is installed or an advertisement is replaced, the advertising board descends onto the ground for operation, a worker does not need to climb high to carry out dangerous operation, and the life security of the worker is guaranteed; meanwhile, the advertising board is provided with a safe locking part, when the advertising board ascends, once an ascending mechanism in the advertising board is damaged and the advertising board falls off accordingly, the safe locking part can clamp the advertising board so that the advertising board cannot fall off, and the worker is prevented from being hit; meanwhile, the advertising board is provided with a fixing part, and the advertising board is fixed from the side face and the upper portion.

The invention relates to the technical field of unmanned aerial vehicles, and discloses a gasbag device for unmanned aerial vehicle drop resistance. The device comprises an unmanned aerial vehicle and a gasbag device, the bottom of the unmanned aerial vehicle is provided with the gasbag device and is further provided with foot frames, through-holes are formed in the top portions of the foot frames, and the foot frames are fixedly connected to the bottom of the unmanned aerial vehicle though bolts. The gasbag device for unmanned aerial vehicle drop resistance slows down the falling speed of a downfallen unmanned aerial vehicle, then prevents the unmanned aerial vehicle from breaking or injuring a pedestrian on the ground, reduces the economic lost of a user of the unmanned aerial vehicle to the minimum and further protects the life security of the pedestrian on the ground.

The invention discloses a high-flame-retardance fireproof cable made of inorganic materials. The high-flame-retardance fireproof cable comprises a plurality of wire cables, a fire-resistant layer made of inorganic materials and a flame-retardant jacket. The fire-resistant layer made of the inorganic materials is extruded on the wire cables; the flame-retardant jacket is sleeved on the fire-resistant layer made of the inorganic materials; each wire cable consists of a copper conductor and a vitrified silicon rubber insulating layer extruded on the copper conductor; and a filling layer is filled in the fire-resistant layer made of the inorganic materials. The high-flame-retardance fireproof cable is characterized in that the fire-resistant layer made of the inorganic materials comprises, by weight, 85% of magnesium hydroxide, 6% of serpentine powder, 4% of magnesium calcium carbonate, 3% of sodium silicate and 2% of chlorinated paraffin which are squeezed to form the fire-resistant layer made of the inorganic materials. The insulating layer is made of vitrified silicon rubber, and because the insulating layer has high fire resistance and the vitrified silicon rubber is vitrified at a high temperature, the insulating performance of the cable is guaranteed during spontaneous combustion of the cable and external fire disasters. Besides, as the fire-resistant layer made of the inorganic materials is totally made of the inorganic materials by cold stirring and extruding, the materials cannot be combusted during the fire disasters, and flame-retardant and fireproofing effects can be achieved effectively.

The invention discloses a special frequency converter box for a large sound box, which comprises a working box, wherein the two sides of the bottom of the working box are fixedly connected with a cooling liquid storage box; the bottom of the inner wall of the cooling liquid storage box is fixedly connected with a supply cooling pump; the supply cooling pump is communicated with a cooling pipe through an output port; one end, far away from the output port, of the cooling pipe is communicated with a heat dissipation pipe; a fan fixing frame is arranged above the heat dissipation pipe; the bottomof the fan fixing frame is fixedly connected with a head dissipation fan; the heat dissipation fan is rotationally connected with blades through a rotating shaft; and one end, far away from the cooling pipe, of the heat dissipation pipe is communicated with a backflow pipe. The invention relates to the technical field of sound equipment accessories. The special frequency converter box for the large sound box solves the problems of heat dissipation and stable cooling of the working box, and wire arrangement, so that omni-directional dust removal and personnel protection can be achieved, intelligent heat dissipation and dust removal can be realized, and the energy waste is reduced.

The invention relates to a metro safety door. The metro safety door comprises a door body and sealing components; the door body is provided with a set of horizontal guide rails; the door body is driven through a mechanical arm to open and close; the two sealing assemblies are mounted at two door edges opposite to the door body respectively; each sealing assembly comprises a base plate and a sliding rod is fixed on a back plate of each base plate; the sliding rods are vertical to the back surfaces of the base plates; rod grooves matched with the sliding rods are formed in the door edges; the sliding rod are inserted into the rod grooves in a sliding manner; a compression spring sleeves each sliding rod; one end of each compression spring is connected with the corresponding base plate and the other end of each compression spring is connected with the corresponding door edge; a roller is mounted on the front surface of each base plate; the axis of each roller is parallel to the corresponding base plate; and each roller can rotate around the axis of the roller. The metro safety door is simple in structure and low in cost, can effectively protect passengers and can prevent the passengers from being crushed and dragged by a metro door, even prevent passengers from tragic consequences.

The invention discloses a natural gas engine idling fluctuation control strategy. The natural gas engine idling fluctuation control strategy is applicable to a gas motor vehicle and comprises the following steps: enabling the engine to enter the idling state; carrying out PID regulation; enabling the engine to enter the idling fluctuation state; reserving the torque for the first time; reserving the torque for the second time; checking an ignition angle look-up table; and carrying out fluctuation elimination. The natural gas engine idling fluctuation control strategy disclosed by the inventionis added with the engine idling torque reserving process, so that when the engine is mutually transformed between the normal idling state and the state of idling during the start-up of vehicle-mounted equipment, the torque of the engine can be corrected by utilizing an ignition angle through the regulation of torque reserves, the idling fluctuations of the engine can be reduced, and the idling responsiveness of the engine can be improved; accordingly, the smooth transition of the engine between the normal idling state and the state of idling during the start-up of the vehicle-mounted equipment can be achieved, the running of a complete vehicle can be smooth and steady, and the driving comfort of the complete vehicle can be improved; even if the running process is in progress, the engine can be protected against flameout; and then the power-assisted steering failure of the complete vehicle can be avoided as well as the life safety of a driver and passengers can be protected.

The invention relates to a polyacrylonitrile fiber, and concretely relates to a high temperature-resistant flame retardation polyacrylonitrile fiber and a production method thereof. The method concretely comprises the following steps: processing a polyacrylonitrile fiber in a hydrazine solution with the concentration of 7-20wt%, processing the hydrazine processed fiber in an alkaline solution with the concentration of 3-10wt%, washing the alkali processed fiber with water until the fiber is neutral, processing the neutral fiber in an aqueous metal ion salt solution with the concentration of 3-10wt%, oiling the metal salt processed fiber, dehydrating the oiled fiber, and drying the dehydrated fiber to obtain the high temperature-resistant flame retardation polyacrylonitrile fiber. The flame retardation performance LOI of the flame retardation fiber obtained in the invention can reach 40-45, the flame retardation grade is M1, and the amount of smoke generated in the combustion process is very small, the grade of toxic gases is FO, and the smoke amount of the flame retardation fiber in the invention is lower than that of other flame retardation fibers. The flame retardation fiber in the invention has the advantages of high moisture regain rate, high water absorption rate, good dyeability and low shrinkage in boiling water.

The invention relates to an escalator safety device. A control system comprises a main power switch, a voice broadcast switch, a GPS positioning switch, an emergency brake switch, a voice broadcast module, a GPS positioning module, an LCD display module, an LED warning lamp module, a power module, a single-chip microcomputer module and a speed sensor module. The mechanical system comprises an escalator, an anti-falling type escalator front air cushion device, an anti-falling type escalator rear air cushion module, an emergency brake module and an anti-falling type air bag type handrail module. The escalator safety device integrates escalator running speed abnormality voice alarming, elevator running speed abnormality LED warning, escalator GPS real-time positioning and emergency center interconnection, anti-falling air cushion safety protection, anti-falling air bag handrail safety protection and other functions; the structure is simple, operation is convenient, safety and reliability are achieved, and escalator passengers can be reminded to be careful, slow down in time and pay attention to safety, unnecessary collisions and bruise are avoided, and life safety and property safety of the escalator passengers are effectively protected.

The invention relates to a drilling machine, in particular to a drilling machine for mold processing. The front end of the rod is fixed with a driving mechanism, the driving mechanism is connected with the drill bit, the connecting rod is provided with a collection box and an exhaust fan, the driving mechanism is provided with a hollow shell with an open bottom, and the inner wall of the hollow shell is provided with a through hole, and the hollow shell is close to the support rod. There is an opening on the side wall, the hollow casing is connected to the collection box through the first connecting pipe, and the collecting box is connected to the air inlet end of the exhaust fan through the second connecting pipe. A processing table is provided on the opposite side of the drill bit, a fixing device is provided on the processing table, a bearing is provided on the support rod, and a cross bar matching the opening is fixed on the bearing; the technical solution provided by the present invention can overcome the problems existing in the prior art Debris splashing around when drilling, drilling positioning is not accurate enough and other defects.

The invention provides an anti-electric-shock distribution box which comprises an open box formed by a top plate, a bottom plate, a left plate, a right plate and a rear plate. A front opening of the open box is enclosed by a front frame and a front door. The front door comprises a left door and a right door which can both be opened and closed. The distribution box is connected with a protection device. A current sensor is arranged inside the distribution box. A filter is arranged inside the protection device. The filter is connected with a first amplifier and a relay successively on one hand, and is connected with a second amplifier and an alarm device on the other hand. The relay is connected with a power supply.