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40results about How to "With emergency function" patented technology

Automatic controlling device and method for bridge static load test

The invention discloses automatic controlling device and method for a bridge static load test and relates to the technical field of bridge quality inspection equipment. The automatic controlling device comprises a test main controlling device, a loading executive device, a load measuring device, a deflection measuring device and the like. The automatic controlling method comprises the following steps: calculating a calculating load value Pk of each load grade; reading a detection load value Fi and a deflection value in real time, setting a relative lower limit deviation percentage Llim and a relative upper limit deviation percentage Ulim, comparing with Fi to obtain Fmax and Fmin; and comparing Fmax and Pk (1+Ulim), and selecting to execute a dynamic automatic balancing process or a synchronous balancing loading process. By automatically controlling the whole loading process by an industrial computer, the automatic controlling device and method are capable of automatically detecting and storing synchronous loading, automatic load balancing, load data and deflection data of each point, obtaining test reports, remotely monitoring test data and field images and also saving a great deal of manpower.
Owner:WUHAN SIMUTECH CO LTD

Intelligent pipe gallery inspection robot with emergency function

The invention relates to an intelligent pipe gallery inspection robot with an emergency function. The intelligent pipe gallery inspection robot comprises a main body, moving wheels and a camera and further comprises an adjusting mechanism, a sealing mechanism and a detecting mechanism. According to the intelligent pipe gallery inspection robot with an emergency function, firstly the sealing mechanism moves to a position corresponding to a pipe by starting the adjusting mechanism, then the moving wheels drive the main body to move, so the sealing mechanism moves along the pipe, at the same time, the detecting mechanism is started and detects the gas concentration around the pipe along the pipe, when the detecting mechanism finds that the gas concentration of a certain place exceeds a standard, the main body stops walking, the sealing mechanism is started, a corresponding pipe section is subjected to emergency sealing treatment, the leakage of gas in the period of time that the staff rushes to a site is reduced, the risk of the operation of a pipe gallery is reduced, and the practicality of the inspection robot is enhanced.
Owner:河南省乾憬光电科技有限公司

Device and method of household appliance intelligent control

The invention relates to a device of household appliance intelligent control. The device of the household appliance intelligent control comprises a plurality of switch controllers and a control box, wherein the switch controllers are respectively connected with different household appliances and used for controlling working states of the household appliances. The switch controllers have same structures. The switch controllers are connected with one another through a CAN bus. The switch controllers are connected with the control box. The control box is used for executing collection and configuration of the working states of the household appliances and operation of master control. Compared with the prior art, the device of the household appliance intelligent control has the advantages that the control box can be used for carrying out 'one key' fast control on all working states of the household appliances. When the control box is broken down, any switch controller can serve as a temporary control box for use, therefore, even the control box is broken down, and any switch controller can further carry out a uniform and fast control function on other household appliances.
Owner:BEIHAI HESI TECH

Security door with electric emergency function

The invention relates to a security door with an electric emergency function. The security door comprises a door plate (1), an electrically coded lock (2), an electromagnetic valve (3) provided with a valve core (31) and a cylinder lock (4), and is characterized in that the security door also comprises a main shifting piece (5) and an emergency shifting piece (6); the main shifting piece is arranged on the back surface of the door plate, fixedly connected with the inner end of a lock core (42) of the cylinder lock and can rotate together with the lock core, and the end face of the main shifting piece is provided with a pushing column (51) protruded outwards; the emergency shifting piece is arranged on the back surface of the door plate, is axially limited at the inner end of the lock core of the cylinder lock and can be relatively deflected to the lock core; and the emergency shifting piece is provided with an arc guiding groove (61) in which the pushing column can be inserted and slide; based on that the main shifting piece rotates for over certain angle, the pushing column is pushed to be matched with the arc guiding groove so as to drive the emergency shifting piece to rotate, and the valve core of the electromagnetic valve can be shifted by the rotation of the emergency shifting piece. Compared with the conventional security door with the electric emergency function, the security door has the advantages that the cylinder lock has the functions of the main lock as well as the emergency lock, so that the security door is simple and reasonable in structure.
Owner:宁波永发智能安防科技有限公司

LED tri-proof lamp

The invention provides an LED tri-proof lamp, and belongs to the field of lamps. The lamp comprises a light source module and a power source module; the light source module comprises a lampshade, a heat sink and an LED lamp panel; the lampshade and the LED lamp panel are fixed to the heat sink, and a first waterproof piece is arranged between the lampshade and the heat sink; the power source module comprises a power source lamp body, a power source and a wiring terminal; the power source and the wiring terminal are fixed to the power source lamp body, the power source is electrically connected with the wiring terminal and the LED lamp panel, the heat sink of the light source module and the power source lamp body of the power source module are fixedly connected, and a second waterproof piece is arranged between the heat sink and the power source lamp body; and the LED tri-proof lamp has the beneficial effects that the heat sink makes contact with air, heat dissipation is good, the whole temperature rise is low, and the failure rate can be reduced.
Owner:惠州民爆光电技术有限公司

Luminous intelligent medicine box with functions of GPS positioning, calling for help, lost prevention and timed reminding

The invention relates to a luminous intelligent medicine box with functions of GPS positioning, calling for help, lost prevention and timed reminding. The luminous intelligent medicine box comprises a box body (1), wherein the box body (1) is in a box shape with an opening upper end and hollow inside; a box cover (2) is arranged at the upper end of the box body (1), and is provided with a clock I (3), control buttons and a control processor; the clock I (3) and the control buttons are connected with the control processor; the clock I (3) is a luminous clock; separators are embedded into the cavity of the box body (1), and are used for dividing the cavity into medicine storage cavities distributed in seven horizontal rows and seven longitudinal rows; small medicine boxes (4) are arranged in the medicine storage cavities, and small box covers (5) matched with the small medicine boxes are arranged at the upper ends of the small medicine boxes (4); a label layer is attached onto each small box cover (5); the box body (1) and the small medicine boxes (4) are made of a transparent material. The medicine box has functions of positioning by the GPS positioning system, calling for help, preventing lost of the aged, sending out timed reminding, facilitating portability and sleeping assistance with luminous light, and can be used for preventing over administration, missed administration, administration by mistake and the like.
Owner:胡天仪

Portable LED lamp with electricity generated through gravity

The invention relates to the technical field of lamps, in particular to a portable LED lamp with electricity generated through gravity. The portable LED lamp comprises a lamp shell, an LED lamp body and a rechargeable battery. The LED lamp body is electrically connected with the rechargeable battery, a control circuit panel and a gravity electricity generating device are arranged in the lamp shell, and the output end of the gravity electricity generating device and the rechargeable battery are electrically connected with the control circuit panel. The gravity electricity generating device is used for generating electricity through gravitational potential energy to supply electricity, under the condition without electricity supply, illumination can be quickly provided, electricity is supplied for continuous operation of other electronic products, operation is convenient and cost is low. The gravity electricity generating device generates power through the gravity seat falling principle, a conversion mechanism converts power and a speed changing mechanism drives a generator to generate electricity, when a gravity seat falls to the bottom, the whole gravity electricity generating device is inverted to enable the gravity seat to fall down again, the method is repeated to generate electricity continuously, long-time illumination is achieved, electricity generating operation is simple and convenient, electricity can be quickly supplied, and the portable LED lamp has an emergency function.
Owner:麦世枝 +1

Silkworm breeding applying constant greenhouse with emergency function

The invention relates to the technical field of heat preservation and discloses a silkworm breeding applying constant greenhouse with an emergency function. The silkworm breeding applying constant greenhouse comprises a box, two rollers are respectively arranged on two sides under the box, a rolling shaft is movably connected to the position of the axis of each roller, two sides of the bottom of the box are fixedly connected with the rolling shafts through connecting rods, a fixing block is fixedly connected to the left side of the top of the box, a standby battery is fixedly connected to the top of the fixing block, a control switch is fixedly installed on the left side of the top of the box, and a handle is fixedly installed on the right side of the box. The silkworm breeding applying constant greenhouse with the emergency function has the advantages that by the arrangement of a control switch, sliding plates can be taken out from sliding chutes through elasticity of a connecting rope arranged on a partition on the reverse side of the box, a heating lamp can output heat stably through a switch of the standby battery, and the effect of emergency is reached.
Owner:广西平果县惠民蚕业科技有限责任公司

Intelligent identification power supply during power grid blackout or artificial-switching power-off

The invention belongs to the technical field of power electronics and relates to an intelligent identification power supply during power grid blackout or artificial-switching power-off. The intelligent identification power supply comprises a low-power-consumption single-chip microcomputer, a positive-voltage reference voltage source chip and a periphery auxiliary circuit, wherein the single-chip microcomputer determines whether a circuit is powered down by detecting the output voltage of a single-phase rectifying module; the positive-voltage reference voltage source chip provides a stable supply voltage for the single-chip microcomputer; and the periphery auxiliary circuit provides a signal amplifying and transferring function for the single-chip microcomputer. The intelligent identification power supply can be applied to the technical field of engineering such as common light-emitting diodes being upgraded to intelligent lamps with an emergency lighting function, the intelligent control of uninterruptible power supplies, giving an alarm during power failure and the like.
Owner:江杨金 +1

Intelligent access control bracelet with emergency function and its intelligent electronic lock system

The invention discloses an intelligent accessory bracelet with emergency rescue function and an intelligent electronic lock system, wherein the intelligent accessory brace ring comprises: a hand ring body, a non-contact sensing module, a Bluetooth communication module and an emergency button; Non-contact sensing module includes read-only memory unit and erasable read-only memory unit, read-only memory unit has a read-only chip serial number, erasable read-only memory unit burned security code, electronic lock device induction security Code or security code and read-only chip serial number to open or lock; Bluetooth communication module connected to the handheld device; emergency button is pressed when the distress signal, Bluetooth communication module connected to the Bluetooth unit to send distress signals to the handheld device, through the handheld device To the cloud server, when the Bluetooth communication module did not successfully send the distress signal to the handheld device, the Bluetooth communication module retains the distress signal and re-transmission.
Owner:TAIWAN SECOM CO LTD

Glasses with first-aid function for heart patients

The invention relates to the technical field of glasses frame production and manufacturing, and discloses a pair of glasses with a first-aid function for a heart disease patient. The glasses compriseglasses legs, and micro pressure sensors are arranged on the outer walls of the glasses legs; the pulse beats of temples are monitored through the micro pressure sensors, and then heart rate is monitored; if the heart rate of the patient is abnormal or suddenly stops, the micro pressure sensors transmit abnormal signals to a chip; the chip controls a loudspeaker to give a harsh alarm for remindingpeople around; during rescue, an indicating arrow can prompt rescue personnel where medicine is stored; during the fetching of medicine, a push plate is directly pushed rightwards to enable a movableblock to move rightwards and compress the spring, the movable block moves rightwards to drive an insertion rod to move rightwards to be separated from an insertion groove, the medicine box is not blocked by the insertion rod to be separated downwards, and at the moment, first-aid medicines in the medicine box can be taken out to rescue the heart disease patient.
Owner:南通积瑞丝纺织品有限公司

Safe box with dampproof and emergency functions

The invention relates to a safe box with dampproof and emergency functions. The safe box comprises a body and an isolation door, and further comprises a dehumidification mechanism and an auxiliary mechanism. The auxiliary mechanism comprises a generator, a lead screw, a ball screw bearing, a supporting casting pipe, a supporting rod, a spring and two fixed bearings. The dehumidification mechanismcomprises a power barrel, a first fan blade, a second fan blade, a first pipeline, a sealing cover, a rotating barrel, two mounting bearings and at least two second pipelines. In the safe box with thedampproof and emergency functions, by means of the dehumidification mechanism, the humidity in the safe box can be reduced, the probability that paper documents go mouldy is reduced, and the practicality of the safe box is improved; and through the auxiliary mechanism, electric energy can be generated to be provided for charging the safe box, the endurance time of the safe box is prolonged, and the practicality of the safe box is further improved.
Owner:湖州博星科技有限公司

Construction method of cascade concentrated seawater discharge-to-sea diffusion device

The invention discloses a construction method of a cascade concentrated seawater discharge-to-sea diffusion device. The construction method includes the steps of pretrenching, pipe laying, backfill and demand-based expansion. Discharge expansion can be performed according to discharge amount of concentrated seawater. Prearranged balance pipe fittings can effectively prevent pipeline glide in the prior art. As sludge is adopted, cost can be lowered, construction is facilitated, actual using effect can meet engineering demands, and the method can be used as a preferred compromise scheme. Bottom seawater neglected in the prior art can participate in dilution mixing by cascade mixing pipes added on demand, regions utilizing natural seawater are more dispersed by extending diffusion branch pipes, and ambient pressure is reduced greatly. Therefore, the construction method has the advantages that good level of pre-setting works is achieved, landslides are prevented, and expansion emergency capacity is high.
Owner:ZHEJIANG OCEAN UNIV

Novel concentrated seawater discharging dispersion device

The invention discloses a novel concentrated seawater discharging dispersion device, which comprises a releasing straight trunk pipe and dispersion branch pipes connected on the side face of the releasing straight trunk pipe. Dispersion branch pipes which are close to the base part of the releasing straight trunk pipe are provided with duckbill valves; dispersion branch pipes which are close to the tail end of the releasing straight trunk pipe are provided with openings but not provided with duckbill valves; pipe diameters of the dispersion branch pipes are sequentially increased from the base part of the releasing straight trunk pipe to the tail end of the releasing straight trunk pipe; the tail end of the releasing straight trunk pipe is sealed by a seal head, and the seal head is connected with a buoyancy matching extending device. Due to the sequential increasing of the pipe diameters of the dispersion branch pipes and the structure with duckbill valves at the upper side and the lower side having no duckbill valves, the whole branch pipe column has a balanced discharging amount. Therefore, the novel concentrated seawater discharging dispersion device has the advantages that the dispersion requirement is met, the quality of the nearby sea area environment is not influenced, resistance loss is low, equipment loss is small, an engineering reservation degree is good, landslide is prevented, and an emergency ability is quick.
Owner:ZHEJIANG OCEAN UNIV

Gravity power generation portable led lamps

The invention relates to the technical field of lamps, in particular to a portable LED lamp with electricity generated through gravity. The portable LED lamp comprises a lamp shell, an LED lamp body and a rechargeable battery. The LED lamp body is electrically connected with the rechargeable battery, a control circuit panel and a gravity electricity generating device are arranged in the lamp shell, and the output end of the gravity electricity generating device and the rechargeable battery are electrically connected with the control circuit panel. The gravity electricity generating device is used for generating electricity through gravitational potential energy to supply electricity, under the condition without electricity supply, illumination can be quickly provided, electricity is supplied for continuous operation of other electronic products, operation is convenient and cost is low. The gravity electricity generating device generates power through the gravity seat falling principle, a conversion mechanism converts power and a speed changing mechanism drives a generator to generate electricity, when a gravity seat falls to the bottom, the whole gravity electricity generating device is inverted to enable the gravity seat to fall down again, the method is repeated to generate electricity continuously, long-time illumination is achieved, electricity generating operation is simple and convenient, electricity can be quickly supplied, and the portable LED lamp has an emergency function.
Owner:麦世枝 +1

Wrist-type comprehensive monitoring system and monitoring method thereof

The invention discloses a wrist-type comprehensive monitoring system and a monitoring method thereof. The monitoring system comprises detection devices, a wrist-type collection terminal and a background device, and all the detection devices have the Bluetooth function; the wrist-type collection terminal is internally provided with a control module, a Bluetooth module and a wireless transmission module; the Bluetooth module is connected with the control module which is connected with the wireless transmission module, the wrist-type collection terminal conducts communication and data transmission with the detection devices through the Bluetooth module, the wrist-type collection terminal conducts communication and data transmission with the background device through the wireless transmission module, and the control module is used for controlling the Bluetooth module and the wireless transmission module; the wrist-type collection terminal further comprises a loudspeaker and an LED display screen; the background device comprises a database, a cloud platform and clients. The wrist-type comprehensive monitoring system and the monitoring method thereof have the advantages of being convenient to use, wide in applicable detection item, diverse in function and the like.
Owner:统捷通讯科技集团有限公司

Lock for reinforced doors and the like

A lock (1) for reinforced doors and the like, of the type that comprises a box-like containment body (2) which has suitable lateral openings (7) for the passage of at least one latch and at least one bolt (8), the box-like body accommodating a plurality of substantially laminar elements which are functionally associated with a cylinder, which is actuated by a respective key, and a rotating element (10) for the engagement of a handle, which is associated with the at least one latch by means of lever systems and is designed to move the latch. The lock (1) further comprises a plate (11) which performs a translational motion substantially parallel to a face (3) of the box-like body (2), having an upper end (Ha) which faces and lies proximate to a protrusion (11b) of the rotating element (10) and a lower seat for the engagement of a stem which is rigidly coupled to a carousel (12) which is pivoted, in another point, to the box-like body (2), the carousel (12) accommodating a second stem the free end of which is engaged within a slot of the laminar element (13) which is rigidly coupled to the' at least one bolt (8) which is functionally associated with the cylinder, the rotation of the handle and therefore of the respective rotating element (10) producing a translational motion of the plate (11), a rotation of the carousel (12) and a translational motion of the laminar element (13), with consequent retraction of the at least one bolt (8).
Owner:CISA

Battery mounting structure of outdoor illuminator

The invention discloses a battery mounting structure of the outdoor illuminator. The structure comprises a positive electrode cover, a negative electrode cover and a connector, wherein the connector is matched with the positive electrode cover and the negative electrode cover to form a battery bin; the battery bin is provided with a battery support, and the battery support is provided with a battery installation cavity. The battery support is slidably arranged in the battery bin. The connector is provided with a conducting strip, the conducting strip enables positive electrodes of all batteries in the battery installation bin to face the positive electrode cover, and the batteries are connected in series. And a charging port is formed in the positive electrode cover. The battery support isarranged in the battery bin in a sliding mode, and the battery support cannot be completely separated from the battery bin in the battery installing or replacing process, so that the battery supportis not prone to being lost in the using process, especially when the battery is replaced at night, battery replacement operation is quite convenient, and the battery support cannot be lost.
Owner:温州弘顿广告设计有限公司

Residential water valve capable of randomly switching water outlets and having emergency function

The invention relates to the technical field of water valves and discloses a residential water valve capable of randomly switching water outlets and having an emergency function. The residential water valve comprises a water valve switch, wherein the center of the water valve switch is fixedly connected with a switch rotating shaft, the bottom end of the switch rotating shaft is fixedly connected with a gate column, the lower end of the gate column is fixedly connected with a gate plate, the bottom end of the gate column is movably connected with a fixing groove, the lower end of the switch rotating shaft is movably connected with a mounting block, the lower end of the mounting block is movably connected with a waterproof sleeve, the side surface of the waterproof sleeve is fixedly connected with a waterproof groove, and an upper shell is arranged on the side surface of the waterproof groove. For the residential water valve capable of randomly switching the water outlets and having the emergency function, the switch rotating shaft is rotated by rotating the water valve switch and rotates the gate column, the gate column rotates the gate plate, then a gate block starts to rotate, the water outlet state of the water valve is changed by changing the position of the gate block, and thus the purposes that the valve is closed aiming at a damaged water pipeline, and the water valve is opened aiming at a normal water pipeline are achieved.
Owner:贾金生

Constant-pressure water supply equipment with emergency function

The invention relates to constant-pressure water supply equipment with an emergency function. The constant-pressure water supply equipment comprises a tank body, a water outlet pipe, a water inlet pipe, a water inlet module and a water outlet module, wherein the water inlet pipe is arranged above the tank body, the water outlet pipe is arranged on one side of the tank body, the water inlet moduleis arranged on the water inlet pipe, and the water outlet module is arranged on the water outlet pipe; an icebreaking mechanism is arranged in the tank body; an emergency mechanism is arranged above the tank body; the icebreaking mechanism comprises a driving assembly and two icebreaking assemblies; the driving assembly comprises a driving motor, a transmission shaft, a support plate, a rotating disc and blades; and the emergency mechanism comprises a sealing assembly, an emergency assembly and an adjusting assembly. According to the constant-pressure water supply equipment, the emergency function is realized by virtue of the emergency mechanism, and furthermore, an icebreaking function is realized by virtue of the icebreaking mechanism, so that the situation that the water supply fails when water cannot flow is avoided.
Owner:上海上源泵业制造有限公司

Intelligent anti-theft system based on 4G network

The invention provides an intelligent anti-theft system based on a 4G network. The system comprises a password unlocking system and a mechanical unlocking system. The intelligent anti-theft system further comprises a camera, a cloud storage module and a remote dialing system. The remote dialing system comprises a call module. The intelligent anti-theft system has the advantages of high functionality and great anti-theft effect, and is safe and reliable.
Owner:NANJING LVZHICHENG PATENT TECH DEV CO LTD

Security door with electric emergency function

The invention relates to a security door with an electric emergency function. The security door comprises a door plate (1), an electrically coded lock (2), an electromagnetic valve (3) provided with avalve core (31) and a cylinder lock (4), and is characterized in that the security door also comprises a main shifting piece (5) and an emergency shifting piece (6); the main shifting piece is arranged on the back surface of the door plate, fixedly connected with the inner end of a lock core (42) of the cylinder lock and can rotate together with the lock core, and the end face of the main shifting piece is provided with a pushing column (51) protruded outwards; the emergency shifting piece is arranged on the back surface of the door plate, is axially limited at the inner end of the lock coreof the cylinder lock and can be relatively deflected to the lock core; and the emergency shifting piece is provided with an arc guiding groove (61) in which the pushing column can be inserted and slide; based on that the main shifting piece rotates for over certain angle, the pushing column is pushed to be matched with the arc guiding groove so as to drive the emergency shifting piece to rotate, and the valve core of the electromagnetic valve can be shifted by the rotation of the emergency shifting piece. Compared with the conventional security door with the electric emergency function, the security door has the advantages that the cylinder lock has the functions of the main lock as well as the emergency lock, so that the security door is simple and reasonable in structure.
Owner:NINGBOYONGFA ELECTRONIC CQUIPMENT CO LTD

Elevator car with emergency opening and closing mechanism

The invention discloses an elevator car with an emergency opening and closing mechanism, and belongs to the field of elevators. The elevator car with the emergency opening and closing mechanism comprises a car bottom plate; a transmission belt is mounted at the front end of the car bottom plate; a pair of mounting plates positioned on the rear side of the transmission belt are fixedly connected to the front end of the car bottom plate; a driving rod is fixedly mounted at the front ends of the mounting plates; and the upper end of the driving rod is connected with a pressing assembly matched with the transmission belt. The emergency opening and closing mechanism can be arranged on the car bottom plate to enable the pressing assembly and a cutting-off assembly to be matched with each other, and when the elevator car breaks down, the transmission belt of the elevator car door can be effectively damaged through the action of the pressing assembly and the cutting-off assembly, so that rescue personnel can open the elevator car through small external force to rescue trapped passengers, the rescue difficulty is effectively reduced, and the rescue efficiency is improved; and only a transmission belt in an elevator door motor mechanism is damaged, so that the economic loss during elevator rescue is effectively reduced, and the rescue cost is reduced.
Owner:NANTONG PUSIMAN MACHINERY

Portable payment system based on Internet of Things

The invention discloses a portable payment system based on the Internet of Things. The portable payment system comprises a machine body, a signal lamp, a reading magnetic card, a charging port, a liquid crystal screen, a groove, a finger ring, a socket, a handle, a battery box, a box cover, a fixing belt, a buckle, a storage chamber, a knob, a rope winding rod, a signal receiver and a connecting column. The beneficial effects of the invention are as follows: the battery box is arranged in the handle, the battery in the battery box is not used under the normal condition; and when power is cut off or electric quantity in the device is exhausted, the device is used as a standby power supply; therefore, the device can cope with emergencies under the condition of power failure, use of the device is prevented from being affected by power failure, the battery box is hidden in the handle, the size of the device is not occupied, the storage chamber is arranged on the back face of the machine body, the knob is arranged at the top of the storage chamber and connected with the rope winding rod in the storage chamber, and the fixing belt can be effectively controlled. The device has the advantages of being convenient to carry and having an emergency function.
Owner:TIANJIN HENGRUNYIJIA TECH DEV CO LTD

Elevator car with emergency function

The invention provides an elevator car with an emergency function, and relates to the field of elevator cars. The elevator car with the emergency function comprises a car body, a heating box is arranged on one side of the top of the car body, one side of the heating box is connected with the car body through a heating pipeline, a cooling box is arranged on the other side of the top of the car body, a purifying box is arranged on one side of the car body, a buffering box is arranged at the bottom of the car body, and the top of the inner wall of the buffering box is connected with buffering springs. According to the elevator car with the emergency function, a storage box arranged in the middle of the car body can be used as a pedal so that an escape elevator arranged at the top can be conveniently opened for self rescue, an escape plate can be opened through a stretching-out and drawing-back handle at an escape exit, and the escape plate can be conveniently closed and opened in a stretching out and drawing back mode; and the purifying box is arranged outside the car body so that air in the car body can be converted into fresh air, oxygen in the car body is guaranteed to be sufficient, and the situation that accidents occur due to the fact that the air is insufficient is avoided.
Owner:JIANGSU TONGDING ELEVATOR
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