40results about How to "Implement working mode" patented technology

The invention discloses a GNSS (Global Navigation Satellite System) multi-mode multiplexer module. The GNSS multi-mode multiplexer module comprises an antenna multiplexer and a channel multiplexer, wherein the antenna multiplexer is used for receiving a downlink channel satellite signal and transmitting the downlink channel satellite signal into a four-in-one low-noise filtering combination amplifier for combination; the combined signal further comprises a Beidou first-generation uplink channel signal transmitted through a Beidou first-generation power amplifier; the combined downlink channel signal and an uplink channel transmitted signal are subjected to bidirectional equivalent shunting through a signal transmitting and receiving hybrid circuit I; and the channel multiplexer is used for performing bidirectional equivalent combination on the downlink channel signal and the uplink channel signal through the a signal transmitting and receiving hybrid circuit II, and shunting a four-path downlink channel satellite signal in a four-in-one signal power divider. A plurality of signals are shunted through a multi-mode power divider; the isolation degree between a transmitted signal and a received signal is increased through adoption of a transmitting and receiving hybrid filtering circuit pair; interference among signals is eliminated; and low-power-consumption running of a whole system is ensured through adoption of a controllable power amplifier.

The invention provides a five-level power converter, a control method and a control device for the five-level power converter. The five-level power converter comprises an inverter and at least one rectifier, wherein the rectifier comprises at least one rectification control circuit and four capacitors which are connected in parallel in pairs; the first ends of the first capacitor to the fourth capacitor are common-grounded; the rectification control circuit is used for inputting a current to the second ends of the first capacitor to the fourth capacitor respectively; the polarity of the charges accumulated at the second end of the first capacitor and the second end of the second capacitor is opposite to that of the charges accumulated at the second end of the third capacitor and the second end of the fourth capacitor; the inverter comprises a discharge control circuit, and a first inductance unit and a first load which are connected in series with each other; the discharge control circuit is used for discharging from the second ends of the four capacitors of the rectifier in sequence; discharge current flows through the first induction unit and the first load which are connected in series; and the charging and the discharging of any of the first capacitor to the fourth capacitor are staggered.

The invention discloses two kinds of non-isolation type single-magnetic-core three-port direct current converters. Each of the two kinds of the converters comprises an input source port, a battery port, a load port, a first switching tube, a second switching tube, a third switching tube, a first diode, a second diode, a third diode, a filter capacitor and a filter inductor, and has five kinds of working patterns, wherein the four working patterns have three working modes. According to the converters provided by the invention, the converters are connected with the corresponding input voltage sources, the loads and the batteries; single-stage energy conversion is performed among the ports; the converters have multifunctional unified energy management modes and higher efficiency; the same working pattern can be carried out by different working modes, so that limitation to the port voltage is low; and in addition, the converters are wide in operating range and flexible in working modes.

The invention discloses a diesel and methanol dual-fuel system of an internal combustion locomotive engine and a method. The dual-fuel system comprises a diesel engine and further comprises a methanolsupplying system, a methanol sprayer assembly and a methanol spraying control system; the methanol supplying system comprises a methanol tank, a methanol filter, a methanol pump, a methanol flowmeter, a distribution box and a methanol pressure-limiting valve, and the methanol tank is sequentially connected with the methanol pump, the methanol flowmeter and the distribution box through pipelines;the distribution box comprises an input end and a plurality of output ends, and each output end is sequentially connected with the methanol pressure-limiting valve and the methanol sprayer assembly through pipelines; the methanol sprayer assembly comprises a methanol rail, a methanol rail pressing plate, a methanol spraying nozzle and a gas inlet bent pipe; and the methanol spraying control systemcomprises a methanol electronic control unit, a control wire harness, an upper computer, a rotating speed sensor, a coolant temperature sensor, a throttle position sensor, a methanol liquid level meter and a fault alarm device.

The invention provides a test bed of a resin transfer technology. The test bed comprises a resin storage tank for simulating a shielding transfer device, a resin transfer tank for simulating a nuclear island / SRTF (Site Radwaste Treatment Facility) workstation, a resin flushing and discharging tank, a resin mixing tank and a flexible metal pipe for simulating the butt joint of the shielding transfer device and the nuclear island / SRTF workstation, wherein the resin storage tank is connected with an instrument component, a water removing pump and an air admission branch, and the resin storage tank is communicated with the resin transfer tank by virtue of multiple pipelines; the resin storage tank is communicated with the resin flushing and discharging tank by virtue of a water discharging simulation pipeline, the water discharging simulation pipeline is connected with the water removing pump, and the other pipelines are respectively connected with the resin transfer pump; the instrument component, the resin transfer pump and the water removing pump are connected with a control operation desk. The test bed is reasonable in structure and capable of effectively simulating the whole technological process of waste resin transfer, and effective data and a reliable improved method are provided for the integration development of the radioactive resin shielding transfer devices.

The present invention provides a system and method for virtualizing network cards on a network processing platform. The system comprises: a network card monitoring module, used for collecting basic information of physical network cards on a network processing platform, and monitoring states of the physical network cards; a user configuration interface, used for receiving customized logical network card configuration information, and sending the received logical network card configuration information to a function configuration module; the function configuration module, used for implementing a working mode required by the logical network card configuration information and notifying the working mode to a management and scheduling module and a data sending and receiving module; the management and scheduling module, used for parsing a notification received from the function configuration module, and scheduling hardware resources of a plurality of physical network cards on the network processing platform to perform virtualization configuration on the scheduled physical network cards; and the data sending and receiving module, used for establishing, according to the working mode of logical network cards and the virtualization configuration, a correspondence between the logical network cards and the physical network cards in a data sending and receiving process by means of a mapping table, and used for sending or receiving data.

The invention discloses a rolling wheel-stored underwater tourism investigation device. The rolling wheel-stored underwater tourism investigation device includes a fixing connection plate, and two sealed cabins having the same structures; the fixing connection plate is laid on the tops of the two sealed cabins; a gap is formed between the two sealed cabins; outlook windows are arranged on two ends of the sealed cabins; the rolling wheel-stored underwater tourism investigation device also includes a dive distance measurement alarm device, pneumatic tire wheels, swinging storage racks and hydraulic cylinders; one ends of the swinging storage racks are hinged on the bottoms of the sealed cabins, and the other ends of the swinging storage racks are fixed on piston rods of the hydraulic cylinders; the hydraulic cylinders are arranged in grooves formed in the bottoms of the sealed cabins, and the pneumatic tire wheels are arranged on the swinging storage racks; and the hydraulic cylinders pull the swinging storage racks to swing, the pneumatic tire wheels follow the swinging storage racks and enter grooves. The dive distance measurement alarm device can greatly improve the dive safety, and can prevent the investigation device from hard landing or colliding with underwater obstacles; and the pneumatic tires can be easily stored.

The invention relates to an automobile electronic rearview mirror. The automobile electronic rearview mirror comprises a rearview mirror shell, a rearview lens arranged on the rearview mirror shell, and a liquid crystal display screen arranged at the back of the rearview lens, wherein the rearview lens comprises a front glass substrate and a rear glass substrate, a liquid crystal layer is arrangedbetween the front glass substrate and the rear glass substrate, a front polarizer and a retroreflective polarizer are respectively arranged outside the front glass substrate and the rear glass substrate, liquid crystal orientation layers are respectively arranged on opposite sides of the front glass substrate and the rear glass substrate, the liquid crystal layer is between the liquid crystal orientation layers of the front glass substrate and the rear glass substrate, the liquid crystal display screen comprises a liquid crystal display screen front polarizer, and the liquid crystal display screen front polarizer is arranged outside the retroreflective polarizer. Due to use of the front polarizer, the liquid crystal layer and the retroreflective polarizer, reflected light strength of therearview lens and transmitted light strength of the liquid crystal display screen are controlled through bias voltage applied to the liquid crystal layer.

The invention discloses a plastic profile embossing device. The plastic profile embossing device comprises a workbench, wherein support columns which are symmetrically distributed are connected to both sides of the top surface of the workbench, a top plate is connected to the tops of the support columns, two air cylinders which are symmetrically distributed are installed on the top surface of thetop plate, the bottom output ends of the air cylinders penetrate through the top plate, a mounting plate is connected to the bottom output ends of the air cylinders, bearing frames are respectively connected to both sides of the bottom surface of the mounting plate, a shaft sleeve and a transmission shaft are rotatably connected to the bearing frames respectively, a first end cover is welded on the side surface of one side, which is close to the transmission shaft, of the shaft sleeve, a second end cover is welded on the side surface of one side, which is close to the shaft sleeve, of the transmission shaft, and a drum is connected to the end surfaces, which are close to each other, of the first end cover and the second end cover. The plastic profile embossing device has the advantages ofreasonable structure and good universality, quick switching of two operating modes of embossing and no embossing can be realized, the embossing requirements of different specifications of profiles canbe satisfied, an embossing die head is convenient to replace, and the cost of equipment is greatly reduced.

The invention relates to an energy-saving servo control system for an injection molding machine. The energy-saving servo control system comprises a control module of the injection molding machine, a servo motor, a constant displacement pump, a control element and a performing element, and further comprises a servo controller, a pressure sensor and a speed sensor, wherein the servo controller comprises a data processing module, a torque conversion module and a speed conversion module; the control module of the injection molding machine comprises a data processing module which is respectively connected to the pressure sensor, the speed sensor, the torque conversion module and the speed conversion module; the torque conversion module and the speed conversion module are respectively connected to the servo motor; the pressure sensor is arranged on an oil outlet pipeline of the constant displacement pump; the speed sensor is arranged on the output shaft of the servo motor; and the servo motor is used for receiving a torque signal and a rotation speed signal which are independent from one another. Compared with the prior art, a purpose of regulating the control system by double closed-loop feedback of a pressure flow rate and rotation speed is realized, so that the working performance of the operation of the injection molding machine is relatively stable, and the energy utilization efficiency of the injection molding machine is improved.

The invention discloses two kinds of non-isolation type single-magnetic-core three-port direct current converters. Each of the two kinds of the converters comprises an input source port, a battery port, a load port, a first switching tube, a second switching tube, a third switching tube, a first diode, a second diode, a third diode, a filter capacitor and a filter inductor, and has five kinds of working patterns, wherein the four working patterns have three working modes. According to the converters provided by the invention, the converters are connected with the corresponding input voltage sources, the loads and the batteries; single-stage energy conversion is performed among the ports; the converters have multifunctional unified energy management modes and higher efficiency; the same working pattern can be carried out by different working modes, so that limitation to the port voltage is low; and in addition, the converters are wide in operating range and flexible in working modes.

The invention relates to the field of speed regulation, in particular to an electromechanical integrated planetary speed regulation device capable of regulating speed in a full range. The electromechanical integrated planetary speed regulation device comprises a sun gear, a planet gear, an inner gear ring, a planet carrier, a plurality of parallel shaft gears, a synchronous automatic clutch, a speed regulation motor, a four-quadrant frequency converter, a two-quadrant frequency converter, a plurality of switches and the like. The sun gear, the planet gear, the inner gear ring and the planet carrier are connected in a planetary gear box mode, an input shaft of the inner gear ring is connected with an output shaft of the synchronous automatic clutch through a two-stage parallel shaft gear, the planet carrier is connected with a variable frequency motor through a two-stage parallel shaft gear, and an idle gear is connected with an input shaft of the clutch. The four-quadrant frequency converter drives the speed regulation motor, and the two-quadrant frequency converter and the bypass switch drive a main drive motor. According to the invention, speed regulation in a range of 0-100% can be realized.

The invention provides a five-level power converter, a control method and a control device thereof. Wherein, the five-level power converter includes an inverter and at least one rectifier; the rectifier includes at least one rectification control circuit, four capacitors connected in parallel in pairs, and the first ends of the first capacitors to the fourth capacitors share a common ground; the rectification control circuit is used to input current to the second terminals of the first capacitor to the fourth capacitor respectively, and the polarity of the charges accumulated on the second terminal of the first capacitor and the second terminal of the second capacitor is the same as that of the first capacitor. The polarities of the charges accumulated on the second end of the three capacitors and the second end of the fourth capacitor are opposite; the inverter includes a discharge control circuit, a first inductance unit and a first load connected in series, and the discharge control circuit is used to sequentially Discharge from the second ends of the four capacitors of the rectifier, the discharge current passes through the first inductor unit and the first load connected in series, and the charging and discharging of any one of the first to fourth capacitors are staggered.

The invention relates to an energy-saving servo control system for an injection molding machine. The energy-saving servo control system comprises a control module of the injection molding machine, a servo motor, a constant displacement pump, a control element and a performing element, and further comprises a servo controller, a pressure sensor and a speed sensor, wherein the servo controller comprises a data processing module, a torque conversion module and a speed conversion module; the control module of the injection molding machine comprises a data processing module which is respectively connected to the pressure sensor, the speed sensor, the torque conversion module and the speed conversion module; the torque conversion module and the speed conversion module are respectively connected to the servo motor; the pressure sensor is arranged on an oil outlet pipeline of the constant displacement pump; the speed sensor is arranged on the output shaft of the servo motor; and the servo motor is used for receiving a torque signal and a rotation speed signal which are independent from one another. Compared with the prior art, a purpose of regulating the control system by double closed-loop feedback of a pressure flow rate and rotation speed is realized, so that the working performance of the operation of the injection molding machine is relatively stable, and the energy utilization efficiency of the injection molding machine is improved.

The invention discloses a dual-fuel injector and an internal combustion engine, and belongs to the technical field of automobile internal combustion engines. The dual-fuel injector comprises an oil inlet assembly, a second midbody, an oil injection control assembly, a piezoelectric actuating mechanism and an injection assembly. The second midbody is connected to the bottom end of a first midbody;a first oil channel and a second oil channel penetrate through the first midbody and extend to the second midbody; the second midbody is provided with a gas inlet channel allowing natural gas to flowin; the oil injection control assembly is used for controlling oil injection and is arranged on the first midbody and the second midbody; the piezoelectric actuating mechanism is used for controllingair injection and is arranged on the second midbody and a transitional piece; the injection assembly is used for injecting fuel oil or natural gas, is arranged at the other end of a long needle valveand comprises a needle valve body, a nozzle sleeve and a coupling sleeve; the nozzle sleeve is arranged on the outer side of the needle valve body; and the coupling sleeve is arranged between the needle valve body and the nozzle sleeve. The dual-fuel injector has the advantages that independent control and injection of two kinds of fuel can be compatible, the use value for users is higher and theinjection response speed is higher.

The invention provides a circuit breaker automatic material separating table. The circuit breaker automatic material separating table comprises a cylinder, a signal line, a conveyor belt, an infraredsensor, a control line, a power line, an elastic arm and a buffer plate. The control line and the power line are arranged on the cylinder, the signal line is arranged on the infrared sensor, and the elastic arm and the buffer plate are tightly connected with each other in a riveting mode. The conveyer belt is positioned on the middle between the cylinder, the control line, the power line, the elastic arm, the buffer plate and the infrared sensor. The cylinder, the control line, the power line, the elastic arm, the buffer plate are arranged on the left side of the conveyer belt, and the infrared sensor and the signal line are arranged on the right side of the conveyer belt. The elastic arm and the buffer plate are arranged inside the cylinder and on the upper portion of the conveyer belt. By the power control of the cylinder, the effective monitoring of the infrared sensor and the organic coordination of the elastic arm and the buffer plate, it is guaranteed that the circuit breaker cancarry out the material separating operation on the conveyor belt accurately and orderly, the error in the work can be greatly reduced, the accuracy rate of products in the unit time can be improved,the manpower resource which should be manually operate is saved, and the cost of manpower cost is reduced.

The invention provides a double-mode type active power filter circuit with an adjustable bandwidth. The filter circuit can be configured to be at two modes of a complex band-pass filter and a low-pass filter which are respectively used for a receiving chain and an emitting chain in a wireless receiver chip. The filter circuit comprises a first third-order low-pass filter, a second third-order low-pass filter, a multi-resistance network, a first extra input end, a second extra input end, a first first-order passive RC (Remote Control) filter and a second first-order passive RC filter. The filter circuit has the advantages that the double-mode type active power filter circuit can be controlled through an internal switch and can be configured to be at the two work modes, so that the area of the chip is saved and the cost of a system is reduced.

The invention discloses a device for testing the performance of a hydraulic multiway valve. The device comprises a plurality of three-way valves. With different combinations of the three-way valves, a plurality of working modes of each functional valve can be realized; and a sensor is utilized to test, so that the device is complete in testing function. In addition, a pressure signal subtracter is provided, so that pressure signals of two corresponding sensors can be received. As the number of signal channels can be reduced effectively, the effects of cost reduction, installation convenience, heating uneasiness and the like are achieved.

An automatic anti-glare automotive electronic rearview mirror, comprising a housing, a front glass substrate (3) disposed on the housing, a rear glass substrate (5), a front polarizer (2), and a reflective rear polarizer (6). A liquid crystal layer (4) is disposed between the front glass substrate (3) and the rear glass substrate (5). The front polarizer (2) and the rear reflective polarizer (6) are respectively disposed at outer sides of the front glass substrate (3) and the rear glass substrate (5). A glass cover (1) is provided at an outer side of the front polarizer (2). Liquid crystal alignment layers are disposed on opposing sides of the front glass substrate (3) and the rear glass substrate (5), and the liquid crystal layer (4) is located between the liquid crystal alignment layers of the front glass substrate (3) and the rear glass substrate (5). The alignment direction of liquid crystal molecules in the liquid crystal layer (4) of the automatic anti-glare automotive electronic rearview mirror is adjusted by biasing transparent electrically conductive layers of the front glass substrate (3) and the rear glass substrate (5), thereby adjusting the polarization state of incident and reflected light, so as to realize, by means of the front polarizer (2) and the rear reflective polarizer (6), control of the intensity of the reflected light of the rearview mirror, such that the response time of the rearview mirror is greatly reduced, and an improved anti-glare effect is achieved in a timely manner.

The invention discloses an underwater sightseeing inspection device equipped with loudspeakers. The underwater sightseeing inspection device equipped with the loudspeakers comprises a fixed connecting plate and two sealed cabins with the same structure, the fixed connecting plate is laid at the tops of the two sealed cabins, and a gap is formed between the two sealed cabins. Each sealed cabin comprises an outer side plate, an inner side plate and a bottom face plate, the bottom face plates are parallel to the fixed connecting plate, the inner side plates are perpendicular to the bottom face plates, and the outer side plates are of V-shaped structures which are formed through abutting joint of upper oblique face plates and lower oblique face plates; outlook windows are arranged at the two ends of each sealed cabin correspondingly; rolling wheels are arranged at the bottom of each sealed cabin; searchlights are arranged at the tops of the two ends of each sealed cabin correspondingly; a plurality of LED lamps are distributed on the periphery of the fixed connecting plate and the periphery of the outlook windows; and one loudspeaker and a player are further arranged in each sealed cabin, and the players are electrically connected with the loudspeakers. Because the loudspeakers and the players are additionally arranged, tourists are provided with acoustic enjoyment.

The invention discloses an underwater tourism investigation device with elevators. The underwater tourism investigation device includes a fixing connection plate, and two sealed cabins having the same structures; one ends of the sealed cabins are tourism regions, and the other ends of the sealed cabins are rest regions; toilets and kitchens are arranged on one sides of the sealed cabins; dining rooms are arranged near the kitchens; beverage freezers are arranged in the dining rooms; medical treatment rooms and storage holds are arranged on the other sides of the sealed cabins; two rows of rest rooms are arranged in each rest region, an aisle is arranged between the two rows of rest rooms, a tourism hall is arranged in the rest region, and the aisle communicates with the tourism hall; and the elevators are arranged on the centers of the sealed cabins, and entrances are formed in the fixing connection plate on the tops of the sealed cabins. The tourism regions and the rest regions are separated from each other, the underwater tourism investigation device has the toilets, the kitchens, the dining rooms, the medical treatment rooms, recessed display screens and stages, great convenience is provided for people; and the elevators can facilitate entering and going out of the sealed cabins.

The invention discloses a class J power amplifier, which comprises an input-one-to-three power distribution and impedance matching network, a three-way power amplification waveform forming network, a high-frequency filtering phase-shifting network, and a three-way J-type waveform synthesis impedance matching network. The invention adopts the power amplification structure based on the three-way self-bias mode to form a waveform forming network, combines the three-way J-type waveform synthesis technology and the J-type amplifier impedance matching technology, and directly shapes the output voltage waveform of the amplifier into a special voltage half of the J-type amplifier. The sinusoidal waveform avoids the negative impedance limitation of the output network, improves the limit efficiency of the traditional class J amplifier, and makes the circuit have the characteristics of ultra-wideband, high gain, and high power output capability.

An embodiment of the invention provides a radiofrequency front-end module, wireless access network equipment and a method for controlling the same. The radiofrequency front-end module comprises a phase shifting and attenuating unit, a radiofrequency unit and antennas, the radiofrequency unit is respectively connected with the phase shifting and attenuating unit and the antennas, the phase shifting and attenuating unit is used for receiving control signals and radio frequency signals which are transmitted by the wireless access network equipment and realizing phase shifting or attenuating or phase shifting and attenuating for the radiofrequency signals according to the control signals, the radiofrequency unit is used for realizing radiofrequency amplification for the radiofrequency signals processed by the phase shifting and attenuating unit, and the antennas are used for transmitting the radiofrequency signals processed by the radiofrequency unit. In the technical scheme, the multiple antennas can intelligently cooperate during working.

The invention discloses a test bench for a resin transfer process, including a resin storage tank for simulating a shielding transfer device; a resin transfer tank for simulating a nuclear island / SRTF station, a resin flushing and draining tank, a resin mixing tank, and A metal hose connected to the simulated shielding transfer device and the nuclear island / SRTF station; the resin storage tank is connected with an instrument assembly, a water removal pump, and an air supply branch; the resin storage tank is connected to the The resin transfer tank is connected; the resin storage tank is connected to the resin flushing and drainage tank through the drainage simulation pipeline; the drainage simulation pipeline is connected to the water removal pump, and other pipelines are connected to the resin transfer pump. The instrument components, resin transfer pump and dewatering pump are connected to the control console. The invention has a reasonable structure, can effectively simulate the whole technological process of waste resin transfer, and provides effective data and a reliable improvement method for the integrated development of radioactive resin shielding transfer devices.

The invention discloses a three-planet-row hybrid power driving device. The three-planet-row hybrid power driving device comprises a driving device shell; an engine which is arranged in the driving device shell; a power battery which is arranged in the shell; a first motor and a second motor which are electrically connected with the power battery respectively; a first sun wheel shaft and a second sun wheel shaft which are coaxially arranged, and the first sun wheel shaft is connected with the output end of the engine; a clutch which is arranged between the first sun wheel shaft and the second sun wheel shaft, and selectively enables the first sun wheel and the second sun wheel to be connected; a third sun wheel shaft which is coaxially arranged with the first sun wheel shaft and the second sun wheel shaft; a three-planet-row gear train; the first gear ring is fixedly connected with the second planet carrier, and the second planet row and the third planet row share the second gear ring; a first brake; a second brake; a third brake; and a differential mechanism. And through switching of multiple working modes, each power source is ensured to work in a high-efficiency area.

The invention provides an inductive breaker conveying table. The inductive breaker conveying table comprises laser inductors, fixing modules, distribution air cylinders, air cylinder shafts, air cylinder supports, a support, elastic arms and a conveying belt. The laser inductors are fixed to the left side of the conveying belt. The distribution air cylinders are fixed to the support through the air cylinder supports. The air cylinder shafts are connected to the distribution air cylinders. The support is fixed to the right side of the conveying belt. The elastic arms are tightly connected with the fixing modules in a riveted mode. The conveying belt is located between the distribution air cylinders and the laser inductors as well as between the elastic arms and the laser inductors. The elastic arms and the fixing modules are located above the conveying belt. Through the power control of the air cylinders, the effective monitoring of the laser inductors and the cooperation between the elastic arms and the fixing modules, the effects that breakers are accurately and orderly distributed on the conveying belt can be guaranteed. Due to the fact that the process is conducted through automatic electric tools, errors in work can be greatly reduced, the accuracy rate of products produced in unit time is increased, and more manpower resources can be saved.

The invention discloses an air bag packaged type underwater sightseeing inspection device. The air bag packaged type underwater sightseeing inspection device comprises a fixed connecting plate and two closed cabins of the same structure. The fixed connecting plate is laid at the tops of the two closed cabins, a gap is left between the two closed cabins, outlook windows are arranged at the two ends of each closed cabin correspondingly, and rollers are arranged at the bottoms of the closed cabins; and a plurality of high-pressure oxygen bottles, an air bag and a high-pressure air box are placed on the plate face of the fixed connecting plate side by side, and the air bag covers the high-pressure oxygen bottles and the high-pressure air box. The air bag and the high-pressure air box are additionally arranged, the air bag has the two following functions that the air bag achieves the protective effect on the high-pressure oxygen bottles and the high-pressure air box, and if the phenomenon that gas leakage occurs on the high-pressure oxygen bottles and the high-pressure air box happens, gas cannot run away and can be sealed in the air bag; and if necessary, the air bag is inflated by using the high-pressure air box, and assistance is provided for upward floating of the underwater sightseeing inspection device.