8140 results about "Air chamber" patented technology

The invention relates to the technical field of temperature monitoring, and discloses a temperature rise monitoring method and system for high-voltage totally-closed vacuum environment-friendly GIS equipment, and the method comprises the steps: collecting temperature data through a temperature sensor, and constructing a node feature matrix and an adjacent matrix according to the spatial position relation of an SF6 gas chamber layer, a high-voltage conductor layer and a housing sealing layer; carrying out intra-layer graph convolution operation and inter-layer graph convolution operation to obtain a temperature space distribution feature vector, and carrying out time sequence fusion to obtain a temperature dynamic change time sequence feature vector; partitioning the monitoring area according to the temperature spatial distribution feature vector and the temperature dynamic change time sequence feature vector to obtain adaptive control parameters of each partition; and the adaptive control parameters are input into a multi-level compensation controller for temperature compensation coefficient calculation, and temperature correction parameters of each level are obtained, so that the integrity and accuracy of temperature field distribution feature extraction are improved, and accurate evaluation and graded early warning of temperature rise risks of different levels are realized.

The invention relates to the technical field of supercritical compressed carbon dioxide energy storage, in particular to an adiabatic supercritical compressed carbon dioxide energy storage system. An expansion unit; during energy storage, the heat storage tank stores compression heat of the supercritical carbon dioxide in the high-temperature and high-pressure state, and the supercritical carbon dioxide in the high-temperature and high-pressure state is cooled to the temperature the same as that of the high-pressure gas storage chamber; during energy release, the heat storage tank heats the low-temperature high-pressure supercritical carbon dioxide discharged from the high-pressure gas storage chamber; the temperature control system adjusts the flow of the cooling medium in the second heat exchanger, controls the inlet temperature of the compressor and further adjusts the inlet temperature of each stage of expansion machine, it is guaranteed that the carbon dioxide temperature of the inlet position of each stage of expansion machine is not lower than the liquefaction critical temperature, and the large-area liquefaction phenomenon does not occur. According to the temperature control system, the phenomenon that in the prior art, when carbon dioxide is at low temperature, carbon dioxide is liquefied, and large-area condensation occurs in the expansion machine can be effectively overcome, and then the operation efficiency and the energy storage efficiency of the system are guaranteed.

The invention provides an SF6 digital density meter based on multi-parameter acquisition and automatic temperature compensation and a control method thereof, the SF6 digital density meter is provided with a density meter display, a detection docking port is arranged below the SF6 digital density meter, the digital density meter is internally provided with a multi-parameter acquisition module and a temperature and pressure arrangement module, and the multi-parameter acquisition module and the temperature and pressure arrangement module are connected with the SF6 digital density meter display. The multi-parameter acquisition module and the temperature and pressure arrangement module are electrically connected with the single-chip microcomputer. And a detection docking port of the SF6 digital density meter is directly and completely contacted with SF6 gas. High concentration of physical quantity acquisition components is realized, and the physical quantity acquisition components are directly and fully contacted with the SF6 gas in the gas chamber, so that accurate acquisition of physical quantities such as actual temperature, pressure and micro water of the SF6 gas for temperature compensation is ensured. Meanwhile, practical improvement is carried out on an existing disclosed SF6 density algorithm model, and an algorithm model with better convergence is obtained.

The invention discloses an alkali metal liquid drop shaping mechanism and an alkali metal content measuring device and method. The alkali metal liquid drop shaping mechanism comprises a shell, an alkali metal liquid drop quasi-circular shaping system, an alkali metal content analysis system and a control system, wherein the alkali metal liquid drop quasi-circular shaping system is used for driving disorderly distributed alkali metal liquid drops to a certain fixed surface of the air chamber and shaping the shape of the alkali metal liquid drops into a quasi-circular shape; the alkali metal content analysis system comprises a gas chamber analysis chamber, a gas chamber placement block, a digital microscope, an annular light source and a development board, and is used for acquiring a shaped alkali metal liquid drop image and processing the image to obtain required information; and the heating assembly, the refrigerating assembly and the alkali metal content analysis system are respectively connected with the control system in a wired or wireless manner. Quasi-circular shaping and content measurement of the alkali metal liquid drops in the air chamber can be realized, so that a more convenient and lossless air chamber internal alkali metal content testing mode is provided for researchers, and service life information of the alkali metal air chamber is perfected.

A vacuum machine for capturing insects has a plenum having a collection opening at one end for collecting insects in an airflow, a fan assembly joined to the plenum at an opposite end from the opening at one end, the fan assembly having a motor-driven fan adapted to draw air through the opening for collecting insects, and an end opposite the end joined to the plenum, and a structure joined to the fan assembly at the end opposite the end joined to the plenum, the structure having elements adapted to kill insects drawn through the fan assembly and to collect the killed insects. The vacuum machine is adapted to be attached to and carried by a tractor with an adjustable elevator adapted to present the collection opening of the plenum oriented at different heights and directions toward a tree, to collect insects from the tree.

The invention discloses a gas distribution device and semiconductor equipment, and the gas distribution device comprises a cover body which is provided with a gas inlet part; the spraying piece is movably arranged on the cover body, and a diffusion cavity communicated with the air inlet part is formed between the spraying piece and the cover body; the lifting isolation device comprises a partition plate part and a lifting part, the lifting part is movably arranged on the partition plate part in a sleeving mode, the top of the lifting part is attached to the cover body so that interaction force can be generated between the lifting part and the partition plate part as well as between the lifting part and the cover body, and the partition plate part is arranged on the spraying part so that the diffusion cavity can be defined into different air chambers through the partition plate part and the lifting part; the driving device is arranged at the bottom of the spraying part and extends out of the cover body, and the driving device is controlled to drive the spraying part and the partition plate part to move away from or towards the cover body, so that the top of the lifting part moves towards or away from the cover body, and the volume of the area defined by the lifting isolation device is adjusted. The semiconductor equipment comprises a gas distribution device and a base which is arranged opposite to the gas distribution device and is used for bearing a substrate. According to the invention, the airflow adjustment flexibility can be improved, and the equipment compatibility is improved.

The invention relates to an attitude and orbit control engine high-altitude environment simulation ignition test system and a verification method, in particular to a high-altitude simulation test bed active injection verification system and a verification method, and solves the technical problems of high cost, high risk and low verification data validity during verification of a high-altitude simulation test bed in the prior art. The active injection verification system for the high-altitude simulation test bench comprises a vacuum chamber, a diffuser, a water spray cooler, a first corrugated pipe, a first gas collection chamber, a second corrugated pipe, n groups of coolers, a third corrugated pipe, a second gas collection chamber, a steam-jet pump, a pipeline and a data acquisition module, according to the verification method of the active ejection verification system of the high-altitude simulation test stand, ejection capacity verification is carried out in two stages, and the verification effectiveness is greatly improved on the premise that the verification cost is greatly reduced.

An inflatable mattress includes a main section and at least one minor section. The main section includes a main section lower wall having main section lower wall edges, a main section upper wall having main section upper wall edges, and at least one main section sidewall connecting between the main section lower wall edges and the main section upper wall edges to form a main section air chamber. The at least one minor section includes a minor section lower wall having minor section lower wall edges connected to a minor section upper wall having minor section upper wall edges to form a minor air chamber. The at least one minor section is connected to the main section by a first pivotable connection between one main section lower wall edge and one minor section lower wall edge, or a second pivotable connection between one main section upper wall edge and one minor section upper wall edge.

The technology described herein is directed towards one or more modular metasurfaces arranged with unit cells for sound absorption, in which the unit cells are based on Helmholtz resonators that are deployed proximate to a server, without substantially obstructing airflow from the server fan(s). Each sound absorbing unit-cells is designed and constructed based on a specific resonance frequency, and includes a neck portion and air chamber dimensioned to resonate at the desired resonance frequency and thereby inverse phase cancel corresponding narrowband frequencies of incoming sound waves. The metasurfaces can be arranged in a modular frame structure of surrounding unit cells, positioned behind the server's fan(s), with an opening in the frame structure to facilitate airflow therethrough, without obstructing or substantially obstructing the airflow to the surrounding environment.

The invention belongs to the field of atmospheric environment monitoring, and particularly relates to a portable multi-point soil CO2 continuous monitoring and data remote transmission system. According to the portable multi-point soil CO2 continuous monitoring and data remote transmission system, the closed air chamber-non-dispersive infrared method is adopted for measuring the soil CO2 concentration, the SenseAir carbon dioxide sensor is connected with the portable soil breathing air chamber, remote and anti-interference wireless data transmission is achieved through the LoRa technology, and the system is simple in structure, convenient to use and high in practicability. The portable multi-point soil CO2 continuous monitoring and data remote transmission system is manufactured. Therefore, automation of multi-point continuous monitoring of soil CO2 in a large-scale range is realized, the dynamic change process of soil respiration is accurately mastered, and a scientific basis is provided for making carbon sequestration and emission reduction measures.

The technology described herein is directed towards modular metasurfaces arranged with unit cells for narrowband, wideband and / or multiband sound absorption, in which the unit cells are based on Helmholtz resonators that are deployed in a server rack, proximate to a server, without substantially obstructing airflow from the server fan(s). Each sound absorbing unit-cells is designed and constructed based on a specific resonance frequency, and includes a neck portion and air chamber dimensioned to resonate at the desired resonance frequency and thereby inverse phase cancel corresponding narrowband frequencies of incoming sound waves. Differently-dimensioned unit cells can be built into a single metasurface module, thereby facilitating wideband and / or multiband sound absorption with that metasurface. The modular metasurfaces can be attached to the sidewalls of a server rack, or positioned in otherwise empty slots above and below a server, optionally coupled to blanking panels for covering the openings of those slots.

A hair straightening device comprises: a hand-held part, a first outlet member, a second outlet member. The second outlet member is arranged parallel to the first outlet member, the first outlet member and the second outlet member are respectively connected with the hand-held part, and a working space is defined between the first outlet member and the second outlet member; wherein at least one of the first outlet member and the second outlet member includes an air chamber and an air outlet communicated with the air chamber, the air outlet is extended along the length of the outlet member; wherein wall of the working space close to the air outlet includes a guiding bevel, the guiding bevel is configured for guiding airflow in the air chamber to the working space; wherein the air outlet is provided with a plurality of deflectors spaced along the direction of the outlet member.

The invention discloses a release film inside and outside stripping type three-dimensional printer which comprises a workbench and a material pump, a transmission mechanism is installed on the workbench, a printing platform is installed on the transmission mechanism, a liquid guide hole is formed in the printing platform, a release film of a material groove divides the material groove into an air bin and a material bin, the air bin is filled with air, and the material bin is filled with material. Photosensitive resin is contained in the stock bin, the material pump is used for introducing the photosensitive resin in the stock bin into the demolding hole of the model through the liquid guide hole, and the release film and the model form an internal and external bidirectional stripping mode in combination with the adjustment of the pressure of the gas bin. The invention further discloses a three-dimensional printing method. The photosensitive resin in the trough is injected into the demolding hole of the model through the material pump, so that the release film is separated from the model from the inner direction and the outer direction of the model, and the stripping speed and the printing speed of the release film are increased.

The invention discloses an internal circulation boiling calcining kiln air distribution plate and a mounting structure thereof.The air distribution plate comprises an annular air distribution plate body, a supporting center pipe and a hollow center blind island, the bottom of the center blind island extends downwards to form a sleeve, and the supporting center pipe is mounted in the sleeve; the upper end of the supporting center pipe penetrates into and is fixed in the center blind island, the lower end of the supporting center pipe penetrates out of the lower portion of the sleeve, and the annular air distribution plate body annularly sleeves and is fixed to the circumferential outer side of the center blind island; in the installation structure, the annular air distribution plate body in the air distribution plate is installed at the communication position of the internal circulation boiling calcining kiln and the air chamber. According to the invention, the influence of thermal deformation caused by thermal expansion and thermal contraction in the clinker calcining process is reduced, the high-temperature bearing capacity is high, and the uniformity of a fluidized bed layer is facilitated.

A vacuum machine has a deck, an interface to attach to a tractor, sidewalls from the deck, an opening for pulling in air and insects, a first plenum having a lower periphery enclosing the opening through the deck and a height, a fan assembly having a fan housing with a lower periphery joined to the upper circumferential edge of the first plenum, the fan assembly having a first fan driven by a motor, fan adapted to draw air upward, through the first plenum, perforated panels in the second plenum for killing insects, one or more ultrasonic transmitters positioned in a structural element on a forward portion of the vacuum machine, oriented to transmit in a direction of the vacuum machine; and power circuitry coupled to the one or more ultrasonic transmitters providing electrical power producing an ultrasonic wave projecting forward in the direction of travel of the vacuum machine.

The invention relates to an SF6 density table data abnormity self-diagnosis method, a storage medium and equipment, and the method comprises the following steps: obtaining a data collection time sequence corresponding to a to-be-diagnosed SF6 density table based on the uploading data of the to-be-diagnosed SF6 density table, and at each detection moment, obtaining a data collection time sequence corresponding to the to-be-diagnosed SF6 density table based on the real-time density time sequence; judging whether the change of the density measurement value exceeds a set fluctuation threshold value or not, and if so, judging the change direction of the density measurement value; judging whether air leakage exists or not based on the air pressure time sequence, and if yes, generating an air leakage alarm signal; and calculating a correlation coefficient of the real-time environment temperature time sequence and the density time sequence, judging whether the density value change and the environment temperature change have high negative correlation or not, and if so, judging that the density value change is caused by the fact that the environment temperature at the installation position of the density meter is higher or lower than the air chamber temperature of the electrical equipment body. Compared with the prior art, the method has the advantage that the change reason of the SF6 density value can be accurately and quickly judged.

The invention relates to the technical field of earthquake detection, and discloses a constant-pressure online detection device and method for the concentration and flow of gas escaped from a hot spring, and the device comprises a gas collecting hood, a buffer bottle, a gas flow detector, a constant-volume gas storage chamber, a constant-pressure detection valve, an online gas detector and a central controller; the gas collecting hood is arranged in a corresponding area of hot spring escape gas and collects the hot spring escape gas; the gas inlet end of the surge flask is communicated with the gas collecting hood through a pipeline, and the gas outlet end is communicated with the gas inlet end of the constant-volume gas storage chamber through a gas flow detector; the constant-volume gas storage chamber is communicated with an on-line gas detector pipeline through a constant-pressure detection valve, and when the air pressure value of hot spring escape gas stored in the constant-volume gas storage chamber is larger than a preset air pressure threshold value, the hot spring escape gas enters the on-line gas detector through the constant-pressure detection valve; the on-line gas detector is used for detecting gas components and concentration of gas escaped from the hot spring and sending detection data to the central controller.

The invention discloses an intelligent pressure self-adaptive anti-bedsore nursing mattress system which comprises a flexible pressure sensing layer configured on the surface of a mattress and used for monitoring pressure distribution data of all parts of the body of a lying person in real time; the multi-air-chamber dynamic adjusting structure comprises a plurality of independent air chambers capable of being inflated and deflated, and the air chambers are distributed in the mattress and used for adjusting the supporting pressure of the corresponding areas according to instructions; the edge intelligent control module analyzes data based on a preset artificial intelligence algorithm to predict a bedsore occurrence risk area, and generates a control instruction according to a prediction result to drive the multi-air-chamber dynamic adjustment structure to adjust the pressure of each air chamber; and the environment regulation and control system comprises a temperature and humidity sensor and a microenvironment regulation device. Through real-time body pressure monitoring, AI risk prediction, dynamic pressure regulation and temperature and humidity coordinated regulation and control, local pressure can be remarkably reduced, a high-risk area can be early warned in advance, and a local microenvironment is improved, so that bedsores are effectively prevented, and nursing dependence is reduced.

The present invention discloses an air mattress system including a first protection cell group disposed on one side of a support cell group. The first protection cell group includes a first middle cell having a height not exceeding a support surface, so as to preserve smooth routing paths for medical treatment pipelines and prevent obstructed flow of fluids. A front and a rear of the first protection cell group are respectively provided with a first front cell and a first rear cell, both of which are provided with bottom air chambers. When a patient needs to be transferred, the bottom air chambers are controlled to be deflated so that tops of the first front cell and the first rear cell are substantially lowered to be near the support surface to provide the patient with an unobstructed transition during the transfer. When the height of the first protection cell group needs to be restored, only the bottom air chambers need to be inflated and a bed height suitable for a patient to lay on can be quickly restored. The present invention attends to requirements of both smooth pipeline routings and ease of transfer for a patient, hence improving practicability and quality of care of the air mattress system.

The invention relates to an intelligently adjustable motorcycle shock absorber, and relates to the technical field of shock absorbers. The invention comprises a spring system, a damping system, a nitrogen tank system and a thermal control system. The spring system comprises a spring upper seat device, a spring body and a spring lower seat device which are installed in sequence. The damping system comprises a damping tube, a damping rod and an upper mounting seat. The damping rod is slidably installed in the damping tube, and the lower end of the damping rod is installed on the spring lower seat device. The damping rod is provided with a damping flow channel. The nitrogen tank system is divided into an oil chamber and an air chamber. The thermal control system is respectively connected with the oil chamber and the upper chamber. The thermal control system comprises a thermal control mounting block, a thermal control airbag and a thermal control piston. The thermal control mounting block is provided with a thermal control channel. The thermal control airbag is installed on the thermal control mounting block. The thermal control piston is slidably installed on the thermal control mounting block. The thermal control piston points to the thermal control channel. The thermal control piston is transmission-connected with the thermal control airbag, and can automatically increase the damping after the viscosity of the shock-absorbing oil is reduced.

The invention discloses a flue gas emission continuous monitoring device and a monitoring method, and relates to the technical field of flue gas emission, the device realizes gas inlet detection and multidirectional gas inlet and gas exhaust of cleaning pipelines and parts through a U-shaped gas inlet pipe, a preheating pipe, a first gas return pipe, a first gas inlet pipe, a gas collection chamber, a condensation pipe, a liquid collection chamber and a second gas return pipe; preheating and heat preservation are achieved through air inlet and air outlet, heat preservation measurement is achieved in the heat preservation shell, pipelines and parts, interference of temperature, oil and particulate matter is effectively reduced, and the monitoring precision is improved; the laser scattering sensor is used for measuring the concentration and the particle size of particulate matters, the optical fiber measuring unit is used for monitoring other components in flue gas, and real-time monitoring and emission component analysis of the flue gas are realized by collecting released liquid and measuring substances dissolved in the liquid; the problems that smoke monitoring is easy to interfere, detection data are easy to fluctuate, and a multi-operation-mode switching technology of a detection device is lacked, so that the smoke monitoring precision is low are solved.

The technology described herein is directed towards a metasurface arranged with unit cells for broadband and / or multiband sound absorption, in which the unit cells are based on the principles of Helmholtz resonators. Deeply subwavelength sound absorbing unit cells are designed and constructed based on desired resonance frequencies. Each unit cell includes a neck portion and air chamber dimensioned to resonate at a desired resonance frequency and thereby inverse phase cancel corresponding frequencies of incoming sound waves. Differently designed and arranged subgroups of unit cells are part of the metasurface, which can be positioned proximate to a noise source. As practical examples, the metasurface or multiple metasurfaces can be placed near or wrapped around a computer server or rack of servers to absorb fan noise. The metasurface components (including the unit cells) can be printed by a 3D printer to result in a thin, light-weight, and cost effective noise absorbing metasurface.

The utility model relates to the technical field of brake air chambers, and provides a double-piston brake air chamber and a brake air chamber suite. The first side of the flange plate and the front cylinder cover define a traveling cavity, the second side of the flange plate and the rear cylinder cover define a parking cavity, a first air inlet and a second air inlet are formed in the periphery of the flange plate, and the first air inlet is connected with a first air inlet inclined pipe to form a first air channel communicating the outside of the brake air chamber with an inner cavity of the traveling cavity. The second air inlet is connected with a second air inlet inclined pipe to form a second air channel communicating the outer portion of the braking air chamber and the inner cavity of the parking cavity. According to the double-piston brake chamber, the overall structure of the double-piston brake chamber can be simplified, miniaturization of products is facilitated, completely symmetrical arrangement can be achieved, the universality of the flange plate is enhanced, and the overall use cost is reduced.

The invention discloses an oscillating water column array fan coupling power generation device capable of adapting to tide level changes, belongs to the field of energy utilization equipment, and solves the problems that in the prior art, the wave energy flow density of partial sea areas is low, and the power generation efficiency of an existing OWC wave energy conversion device is low. According to the technical scheme, an inner cavity is formed in the shared gas chamber; a plurality of oscillating water columns are arranged; each oscillating water column is a hollow tubular column body with openings in two ends, and the opening in one end of each oscillating water column is communicated with the inner cavity of the shared air chamber; and the inner cavity of the shared air chamber is communicated with the power input end of the turbine device. The system has the beneficial effects that multi-element energy utilization is realized, and different natural resources are fully utilized. And the volatility of the power system is reduced. When the output of the wind energy or the wave energy is unstable, the other energy may be in a high-output state, so that the power supply of the system is balanced, and the instability of the power system is reduced.

The invention relates to the technical field of aerostats, solves the technical problem that a traditional CD-ROM device control design method is large in application range limitation, and particularly relates to a control method of a floating device and an autonomously-moving floating device.The control method comprises the steps that an independent air chamber is filled with low-density air, and the floating device autonomously floats in air; and establishing a control equation for controlling the autonomous movement of the floating device by controlling the illumination intensity, placing the floating device floating in the air in the illumination area, and autonomously controlling the floating device to advance according to the preset direction based on the control equation. The optical drive control system is simplified by utilizing the deformation characteristic of the liquid crystal elastomer, so that the light weight of the floating device is realized, fuel and a controller do not need to be carried, and long-time autonomous flight can be realized by utilizing photo-thermal energy so as to adapt to complex and changeable application scenes.

Aspects relate to a compact and low-cost gas analyzer that can be used for different types of gas analysis, such as air quality analysis. The gas analyzer can include a light source, a gas cell configured to receive a sample (e.g., a gas under test), a spectral sensor including a spectrometer and a detector, and an artificial intelligence (AI) engine. Light can enter the gas cell and interact with the sample to produce output light that may be measured by the spectral sensor. The resulting spectrum produced by the spectral sensor may be analyzed by the AI engine to produce a result. The gas analyzer further includes a self-calibration component configured to enable calibration of the sample spectrum to compensate for spectral drift of the spectral sensor.

The invention discloses an underground gas storage gas monitoring method and system based on optical fiber spectrum analysis. The method comprises the following steps: S1, optical fiber network deployment: arranging a corrosion-resistant optical fiber sensor network in a gas storage; s2, spectral data acquisition: transmitting light with a specific wavelength to a gas chamber at the tail end of an optical fiber through a Fourier transform infrared spectrometer, and acquiring a transmitted spectrum after interaction of gas and light; s3, spectrum decoupling and concentration calculation: based on a peak pattern fitting algorithm of the Lambert-Beer law, decoupling the infrared spectrum characteristics of the mixed gas, matching a standard spectrum database, and calculating the concentration of each gas component; s4, constructing a three-dimensional gas model: according to the position of the optical fiber sensor and the gas concentration data, establishing a gas migration model to predict a leakage position and a movement direction; according to the method, the trend, the component distribution, the concentration change and the potential leakage risk of the gas in the storage are effectively evaluated, and technical support is provided for the safety, the effectiveness and the economical efficiency of operation of the gas storage.

The technology described herein is directed towards a metasurface arranged with unit cells for narrowband sound absorption, in which the unit cells are based on Helmholtz resonators that can have their resonant frequencies selected via interchangeable portions. A sound absorbing unit cell is designed and constructed in two parts based on a desired resonance frequency, such as a neck portion and air chamber portion. The portions are dimensioned such that when coupled together, Helmholtz resonators are formed that resonate at a desired resonance frequency and thereby inverse phase cancel corresponding narrowband frequencies of incoming sound waves. A portion with different dimensions can be interchanged to adjust the resonant frequencies to cancel acoustic waves of different frequencies corresponding to noise, which can change over time. The unit cells can be distributed as part of a metasurface, which can be positioned proximate to a noise source to phase cancel the noise.

A double-mechanism linkage inner supporting and pressing clamp for machining a profiling face of a rear cover of a watch comprises a main body, a product containing block, a piston rod, a piston, a wedge head supporting rod, an inner supporting hand and a pressing block, an air cylinder chamber is arranged at the bottom of the main body, and the piston and a piston part of the piston rod are vertically arranged in the air cylinder chamber in a spaced mode so that the air cylinder chamber can be divided into three air chambers. The wedge head supporting rod is inserted into the air cylinder chamber in a sliding and sealing mode to be connected with the piston, the multiple inner supporting hands are installed on the main body in a sliding mode in different radial directions, and the multiple inner supporting hands make contact with the wedge head inclined face of the top of the wedge head supporting rod at the same time so as to be opened along with upward movement of the wedge head supporting rod to clamp the inner side wall of the watch rear cover; in this way, the clamp can trigger radial horizontal movement and axial vertical movement at the same time, linkage of inner supporting and pressing is achieved, the clamping force of the inner supporting and pressing is not affected, the inner supporting and pressing are driven by the air cylinders, the clamping force of the clamp on products is more reliable, and the clamping phenomenon is avoided; in addition, the two air cylinder mechanisms are combined to share one air chamber, so that the clamp is more compact.

An air supply apparatus for an aerial mobility vehicle, which is provided with a fuel cell stack, includes an air compressor mounted in the aerial mobility vehicle and configured to compress air introduced into the aerial mobility vehicle, and an air chamber provided in the aerial mobility vehicle and connecting the air compressor and the fuel cell stack, wherein the air chamber defines a conditioning space for conditioning the air having passed through the air compressor, obtaining an advantageous effect of ensuring a stable supply of air to the fuel cell stack and improving operational stability and reliability.