49results about How to "Enough storage space" patented technology

The invention provides a foldable support device. The foldable support device comprises a driving assembly and a support assembly connected with the driving assembly. The device also comprises a rotating gear and a rack meshed with the driving assembly and the support assembly. The driving assembly and the support assembly are arranged in a non-display area of a flexible display screen body. The flexible display screen body is folded or expanded in such a way that the rack and the rotating gear rotate in a meshed manner and displace relatively. By arranging the rotating gear and the rack, therotating gear moves along the rack and drives the support assembly to move away from the direction of the driving assembly when the flexible display screen body is folded. A sufficient accommodation space is provided so that the flexible display screen body can be folded. The flexible display screen body is effectively prevented from failure.

The invention discloses a content delivery method, a content delivery device and a content delivery system, and relates to the technical field of communication. The problem that an edge cache server is overloaded due to too many accesses in the prior art is solved. The content delivery method comprises the following steps: a first center node acquires to-be-delivered content in a first content delivery network CDN and operation statistical data in a second CDN, wherein the operation statistical data is statistical data of accesses to the to-be-delivered content in the second CDN, and the first center node belongs to the first CDN; the first center node gets the delivery result of the to-be-delivered content according to the operation statistical data and status information of all edge nodes in the first CDN, wherein the delivery result includes at least one determined to-be-delivered edge cache server and content needing to be delivered to each to-be-delivered edge cache server; and the first center node delivers content needing to be delivered to each to-be-delivered edge cache server in the to-be-delivered content to the to-be-delivered edge cache server according to the delivery result.

The invention discloses an air bag support for improving the formation performance of a flexible-packaging lithium-ion battery and an application method of the air bag support. A support body (1) is composed of a support frame (2) and division bars (3) which are arranged in the support frame (2) in a staggered way, and the division bars (3) which are arranged in the staggered way divide the support body (1) into a plurality of small channels (4). The air bag support has the functions that the support body (1) is pasted to one side of a flexible-packaging lithium-ion battery air bag through an adhesive tape to support two outer-packaging aluminum plastic films so as to effectively avoid the phenomenon that the inner layers of the aluminum plastic films are fused together due to thermal diffusion when the edge of the air bag is packaged after a solution is injected into a battery core, therefore the effective air storage space of the air bag is increased, the possibility that the battery core cracks due to more gases during shaping after pre-filling is reduced, the interface properties of the positive pole and the negative pole of the battery during the pre-filling of the battery core are improved, and the support is of great help to promoting the electrochemical performance of the battery. The air bag support has the advantages of novel design, simple structure and stable and reliable working performance.

The invention discloses an intelligent control system for a multifunctional rainwater regulation and storage pond. The system comprises a field layer, a monitoring layer and an internet layer; the field layer comprises a regulation and storage pond water inlet valve, a regulation and storage pond liquid level meter, a water quality detector, a water pump, a water outlet tank liquid level meter, aclean water pump, a shut-off valve, a drain pump and a three-way valve; the monitoring layer comprises a PLC, a switchboard and an engineer station, the PLC controls the regulation and storage pond water inlet valve, the regulation and storage pond liquid level meter, the water quality detector, the water pump, the water outlet tank water level meter, the clean water pump, the shut-off valve, thedrain pump and the three-way valve to work, and the PLC is connected with the engineer station through the switchboard; the internet layer comprises a server, and the server is connected with the switchboard. The invention further provides an intelligent control method for the multifunctional rainwater regulation and storage pond. In the intelligent control system and method, appropriate functionsare automatically selected according to current weather conditions, the multi-functionalization of the regulation and storage pond is realized, and the functions of regulation and storage, surface source pollution control and rainwater reuse are integrated in the regulation and storage pond.

The invention relates to a thrombus extraction apparatus. The thrombus extraction apparatus comprises an expandable part, a transmitting part and a thrombus collecting part arranged at the far end of the expandable part. By means of the thrombus extraction apparatus, enough storage space can be provided for captured thrombi, the captured thrombi are fixedly limited, fallen or cracked shifted thrombi or blood clots or particles in the thrombus extraction process can be captured and collected, and therefore the thrombus extraction capacity is improved; meanwhile, good position fixing of the thrombus extraction apparatus can be achieved, and the problem that the position of the thrombus extraction apparatus is shifted is solved.

The invention discloses a distributed two-dimensional spray pipe ejector device. The distributed two-dimensional spray pipe ejector device uses a pipeline connection mode, and sequentially comprises alow-energy fluid inlet section, a high-energy fluid inlet section and a mixed fluid outlet section which are connected in sequence, wherein an two-dimensional spray pipe ejector is arranged in a pipeline near the high-energy fluid inlet section; a through hole is formed in the surface of the high-energy fluid inlet section and communicates with an external high-pressure tank; the low-energy fluidinlet section, the high-energy fluid inlet section and the mixed fluid outlet section share the same central axis; the two-dimensional spray pipe ejector comprises linear spray pipe unit bodies arranged in parallel; the spray pipe unit bodies are connected through reinforcing ribs; part of the reinforcing ribs are of hollow structures; high-energy fluid enters the spray pipe unit bodies from thethrough hole of the high-energy fluid inlet section and is sprayed out from outlets of the spray pipe unit bodies; and spray pipes are arranged in the spray pipe unit bodies. The distributed two-dimensional spray pipe ejector device is suitable for fluid ejection control of gas and liquid, and has the advantages that the ejection efficiency is improved; the appearance dimension of the ejector device is reduced; and the space installation requirement of the ejector device is lowered.

The invention provides a distributed forest fire monitoring and early warning data acquisition system and method. The system comprises data acquisition modules, a forest analysis and deployment module, a data distribution and storage module and an acquisition control module, the data acquisition modules are installed at all monitoring points of a forest and are used for acquiring various data influencing forest fire, the forest analysis and deployment module is used for analyzing the terrain and vegetation distribution of the forest to obtain proper monitoring point positions, the data distribution and storage module dynamically distributes storage space for storing data uploaded by the data acquisition modules according to the data condition acquired by each monitoring point, and the acquisition control module is used for regulating and controlling the acquisition frequency and the acquisition depth of the data acquisition modules. According to the system, the monitoring place is reasonably planned, the monitoring data are pointedly uploaded and stored, and the monitoring rule is adjusted according to the uploaded monitoring data, so that the fire safety of the forest can be monitored with the minimum monitoring resource.

The invention discloses a multifunctional nursing bed. The multifunctional nursing bed comprises a bed main body; the bed main body comprises bedside supporting frames, bed tail supporting frames, supporting bedside supporting frames and supporting bed tail supporting frames; a framework structure is composed of the bedside supporting frames, the bed tail supporting frames, the supporting bedside supporting frames and the supporting bed tail supporting frames; a lifting device, a washing device and a body-building device are mounted above the bed main body. A user can do lifting and lateral turning motion through the lifting device; the washing device can have a washing usage and the body-building device can have a limb exercising usage, so that treatment, rehabilitation and living are integrated; an FX-2N series PLC (Programmable Logic Controller) is used for controlling and all the devices can be controlled to operate only if a remote control handle is pressed down; the nursing bed is simple in structure, simple and convenient to operate and high in cost performance.

The invention provides a universally applied coal mine underground reservoir. The universally applied coal mine underground reservoir can be universally applied to the structural design of the coal mine underground reservoir under various geological conditions, and comprises a coal pillar dam body formed around a coal mine goaf, a top plate above coal mine goaf space, a bottom plate under the coalmine goaf space and a mould bag construction body arranged between the top plate and the bottom plate and playing a supporting role, water storage space of the underground reservoir is formed in themiddle of the mould bag construction body, and an injecting paste material in the mould bag construction body is formed by matching aggregate processed by mine waste gangue or building debris, cementand water. The invention further provides a construction method of the universally applied coal mine underground reservoir. The universally applied coal mine underground reservoir and the constructionmethod thereof can be universally applied to the design and construction of the coal mine underground reservoir under the various geological conditions, and can also ensure the capacity of the reservoir.

The invention belongs to the technical field of lyocell fiber, and particularly relates to a pre-mixing device used for lyocell fiber preparation. The pre-mixing device comprises a pre-mixing device body which is transversely arranged. A stirring threaded rod is axially arranged in the pre-mixing device body. A spiral propeller blade is arranged on the stirring threaded rod. A pulp material inlet and a solvent and additive inlet are formed in the top of one end of the pre-mixing device body. A material outlet is formed in the bottom of the other end of the pre-mixing device body. A baffle is arranged in the pre-mixing device body in the circumferential direction in a sliding mode. A gap used for containing the baffle is formed in the spiral propeller blade. A regulation device used for controlling the baffle to slide is arranged on the pre-mixing device body. The pre-mixing device is uniform in feeding, controllable in ratio, capable of effectively controlling the pre-mixing time and the material outflow speed, good in pre-mixing effect, and free of cellulose pulp not infiltrated by solvent.

Disclosed is an air bag device (30) that is mounted on a steering wheel (10) wherein a mounting member (18) is provided in a protruding condition. The air bag device (30) is provided with an air bag (32), an inflator (34) which is capable of inflating and deploying the air bag; a cover (36) which covers the air bag, and a mounting plate (40). An anchoring body (70) capable of being anchored to the mounting member (18) is held by the mounting plate (40) via holding members (60). The mounting plate (40) has a recessed section (46) which is more recessed than the mounting portion of the inflator (34). The anchoring body (70) is provided in the recessed section (46) of the mounting plate (40).

The invention discloses a distributed circular seam ejector device. The device adopts a pipeline connection mode and sequentially comprises a low-energy fluid inlet section, a high-energy fluid inletsection and a mixed fluid outlet section which are connected in sequence, and a binary circular seam ejector is arranged in a pipeline near the high-energy fluid inlet section; through holes are formed in the surface of the high-energy fluid inlet section and communicate with an external high-pressure tank; the low-energy fluid inlet section, the high-energy fluid inlet section and the mixed fluidoutlet section share the same central axis; the binary circular seam ejector comprises annular spray pipe unit bodies which are arranged in an annular mode, the spray pipe unit bodies are connected through reinforcing ribs, part of the reinforcing ribs are of a hollow structure, and high-energy fluid enters the spray pipe unit bodies from the through holes in the high-energy fluid inlet section and is sprayed out from outlets of the spray pipe unit bodies; and annular spray pipes are arranged in the spray pipe unit bodies. The device is suitable for fluid ejection control of gas and liquid. According to the device, the ejection efficiency is improved, the boundary dimension of the ejector device is reduced, and the space installation requirement of the ejector device is lowered.

The invention discloses a fish steaming container and a steam heating type cooking instrument, and belongs to the field of kitchen household appliances. The problem that in the prior art, a common fish dish is adopted for steaming fish, and heating is not uniform is solved. The fish steaming container comprises a dish body and a dish cover. The dish body and the dish cover are matched to form a steam cavity. The dish cover is provided with a steam input channel through which steam can be introduced into the steam cavity. A protrusion for bearing a fish body is arranged on the dish face of thedish body. A gap for steam inflowing is formed between the fish body and the dish face through the protrusion. Due to the fact that the gap for steam inflowing is formed between the fish body and thedish face through the protrusion, in the cooking process, steam inside the steam cavity can permeate the lower portion of the fish body through the gap, the steam flowability is greatly improved, thesteam can wrap the fish body all-dimensionally, and the fish body is heated to be more uniform.

A self-locking puller for the zipper comprises a first wing plate and a second wing plate which are separately arranged up and down, an outer cover is arranged on the first wing plate, and the outer cover is characterized in that a storage space is formed between the outer cover and the first wing plate; the zipper further comprises an upper locking piece arranged on the containing space, and the upper locking piece comprises a supporting part and a claw part capable of swinging around the supporting part to be inserted into the zipper tooth channel; the zipper further comprises a first elastic body arranged in the containing space, and the first elastic body can act on the upper locking piece to enable the claw part to be inserted into the zipper tooth channel; the storage space further comprises an unlocking part, and the unlocking part and the first elastic body are transversely arranged in the left-right direction when viewed in the longitudinal direction; the unlocking part can move longitudinally through the space provided by the containing space so that the unlocking part can have an unlocking position and a locking position; due to the fact that the containing space is formed between the outer cover and the first wing plate, enough installation and containing space is provided for internal components such as the upper locking piece and the first elastic body, and damage to the overall appearance of the self-locking pull head due to exposure of the internal components is reduced.

The invention provides a flight luggage and a method for controlling the flight luggage. The flight luggage provided by the invention comprises a luggage body, a luggage cover and a luggage belt; theluggage body comprises a frame made of a hard material; a power supply, a sensor and a controller are arranged on the frame; a plurality of duct cylinders are arranged on the frame; a rotary wing anda driving motor are fixed in the duct cylinders through mounting frames; communicating holes are formed at the positions, corresponding to the duct cylinders, of the luggage cover; and a controller isconnected with the power supply, the sensor and the driving motor separately. The flight luggage can realize stable flight while storing materials.

The invention relates to the field of goods shelves, in particular to a goods shelf used for selling socks and a use method thereof. The goods shelf comprises a movable bracket and multiple storage devices; the movable bracket includes a front bracket part and a rear bracket part, and the upper end of the front bracket part is hinged to the upper end of the rear bracket part; each storage device includes a frame rotatably arranged on the front bracket part through a rotating shaft, a storage box arranged on the frame and a positioning device used for limiting rotation of the frame; the positioning devices are fixed to the front bracket part, a notch through which a sock can penetrate is formed in the side wall of each storage box, and a storage bag is arranged on each notch. The goods shelf has the advantages that the goods shelf can be folded or dismantled, and the portability is high; multiple storage structures are provided, and the storage spaces are fully utilized; when turning over in the storage boxes, goods can conveniently roll into the storage bags and are recovered easily.

The invention discloses a method and a device for taking internal storage as disk read-write and relates to the technical field of data information processing. The technical problem of the prior art that the read-write speed is low when the documents stored in the hard disk are frequently accessed is solved. The method comprises the following steps: acquiring an address and a naming rule of virtual RAM DISK; creating RAM DISK as disk read-write according to the address and naming rule; establishing a document system and installing the created RAM DISK on the document system; storing the received document into the created RAM DISK and reading and writing the document by accessing the created RAM DISK.

The invention provides a bottle cap preventing liquid overflowing from a high-viscosity liquid storage bottle. The bottle cap is sequentially provided with an upper screw cover, a sharp mouth pipe, an overflowing stopping ring and a lower screw cover from top to bottom. The lower screw cover is provided with a liquid fetching hole and connected with the storage bottle. The lower portion of the overflowing stopping ring is fixed to the lower screw cover, and the upper screw cover is arranged on the overflowing stopping ring in a screwed mode. A pipe seat is arranged on the lower portion of the sharp mouth pipe, and the pipe seat is rotationally arranged in a limiting groove of the upper end face of the lower screw cover in a sliding mode. The sharp mouth pipe protrudes out of a ring hole of the overflowing stopping ring, the outer wall of the sharp mouth pipe makes no contact with the ring hole, and an overflowing liquid temporary storage cavity is formed by the lower screw cover and the overflowing stopping ring in an enclosed mode. A liquid fetching channel of the bottle cap is a pipe cavity of the sharp mouth pipe, the upper half section of an overflowing liquid backflow channel of the bottle cap is composed of a plurality of pipe seat holes, the lower half section of the overflowing liquid backflow channel is composed of a plurality of screw cover holes, the pipe seat holes correspond to the screw cover holes, and when the pipe seat rotates, the overflow cross-sectional area of the overflowing liquid backflow channel changes. The lower end face of the overflowing liquid temporary storage cavity communicates with the overflowing liquid backflow channel. The bottle cap can effectively prevent the high-viscosity liquid from overflowing from the bottle when the liquid is taken for use.

The invention discloses a height-adjustable platform assembly device comprising a main platform, a base plate and an air pump. A first sub-plate is mounted on the left side of the upper end of the main platform, a second sub-plate is arranged on the right side of the upper end of the main platform, first positioning shafts are fixed to the front and rear sides of the first sub-plate and the secondsub-plate, and the outer portions of the first positioning shafts are sleeved with first sleeves in a connected manner. A storage bin is installed, so that a sufficient storage space is provided forthe whole device, and the using convenience of an assembly tool is better improved; the first sub-plate and the second sub-plate are arranged so that the effect of folding between the first and secondsub-plates and the main platform can be achieved through the rotating effect of a hinge, the first sub-plate and the second sub-plate can be unfolded at the appropriate time, and the working surfacearea of the entire device can be expanded; the one air pump is arranged for providing a power source, ejecting rods in four cylinders can be driven to stretch out and draw back to adjust the height, and the cost is better reduced; and detachable universal wheels are arranged so that the device can conveniently move.

The invention relates to a flow guide layer of a paper diaper with a lawn structure. The flow guide layer comprises a base cloth, an adhesive layer and an ultra-short fiber layer; the ultra-short fiber layer is a layer of low density ultra-short fibers vertically arranged, and through a method of static electricity implantation, the ultra-short fibers are evenly fixed on the base cloth. A three-dimensional structure is formed; gaps between the ultra-short fibers arranged vertically are large, when penetrating a surface layer to reach the flow guide layer, liquid longitudinally diffuses along the fibers more arranged on the base cloth in the longitudinal direction, after permeating down, the liquid can be quickly captured by a fluffy structure with a certain thickness, and after temporary storage, the liquid diffuses immediately, and is absorbed by a central layer; the fluffy flow guide structure can increase gross absorptive amount of the liquid, and accelerate liquid absorption of SAPin the longitudinal direction of a product, and possibility of return-permeating is reduced; less of fiber dosage is achieved; and collapse when the paper diaper is wet is reduced, utilization efficiency of the SAP is improved, and at the same time, the return-permeating is reduced.

The invention belongs to the field of sewage treatment equipment and in particular relates to a shallow-layer air-floating sewage filter. The shallow-layer air-floating sewage filter comprises a tankbody, a bracket and a water distribution mechanism, wherein a rotary wheel runway plate is arranged on the upper surface of a tank wall in the peripheral direction; the rotary wheel runway plate is matched and connected with a rotary frame; the rotary frame is provided with a rotary driving device; the rotary wheel on the rotary frame is controlled to do peripheral motion on the rotary wheel runway plate; a rotary barrel, a fixed barrel, a water level adjusting barrel and a sludge barrel are concentrically arranged in the middle of the tank body in sequence from outside to inside; clean-waterwater lifting pipes are uniformly welded with the outer side of the rotary barrel; a water distribution mechanism is located at the upper part of the sludge barrel; an air dissolving pipe and a refluxing pipe are mounted on the bracket. According to the shallow-layer air-floating sewage filter provided by the invention, a product purification tank is shallow and the staying time of sewage in an air floating tank is only 3 to 5 minutes and the surface has an enough dross storage space; the filter is especially suitable for treating high-concentration sewage. The shallow-layer air-floating sewage filter has a small volume and the air dissolving efficiency reaches 95 percent or more; the shallow-layer air-floating sewage filter also has the advantages of compact structure, small occupied areaof equipment and high efficiency.

The invention discloses a novel scientific experiment cabinet with sterilizing and moisture-proof functions. The novel scientific experiment cabinet with the sterilizing and moisture-proof functions comprises a box, a mounting sheet and a lower treatment zone, wherein a motor is fixedly mounted at the top end of the box; second gear plates are meshed with the left side and the right side of a first gear plate; the mounting sheet is positioned on the front sides of drying barrels; sterilizing lamps are mounted on the left side and the right side of the upper end of an upper treatment zone; push-pull glass is fixedly mounted on the front side of the upper treatment zone; ultraviolet lamp tubes are equidistantly arranged on the inner side of a first mounting plate; a glass plate is connectedto the inner part of a mounting groove in a clamping manner; the lower treatment zone is positioned at the lower end of the front side of the mounting sheet; a second mounting plate is mounted in themiddle of the inner part of the lower treatment zone; placing barrels are equidistantly arranged on the upper surface of the second mounting plate. The novel scientific experiment cabinet with the sterilizing and moisture-proof functions can achieve deep sterilization, has diverse structures, has relatively good drying and moisture-proof effects, facilitates observation of the internal condition and has a sufficient storage space.

The invention discloses a new type of scientific experiment cabinet with the function of sterilizing and moisture-proof, which comprises a box body, a mounting piece and a lower processing area, a motor is fixedly installed on the top of the box body, and the left and right sides of the first gear plate are engaged with each other. A second gear plate is connected, the mounting piece is located on the front side of the drying cylinder, sterilization lamps are installed on the left and right sides of the upper end of the upper treatment area, and sliding glass is fixedly installed on the front side of the upper treatment area. The inner side of the first installation plate is provided with ultraviolet light tubes at equal intervals, the inside of the installation groove is engaged with a glass plate, the lower treatment area is located at the lower end of the front side of the installation piece, and the inner middle of the lower treatment area is installed There is a second mounting plate, and the upper surface of the second mounting plate is provided with placement cylinders at equal intervals. The new scientific experiment cabinet with sterilization and moisture-proof function can carry out deep sterilization, has various structures, has good drying and moisture-proof effect, is convenient for observing internal conditions, and has sufficient storage space.

The cab assembly with the high torsional rigidity comprises a combination mechanism and an exchange mechanism, a placing mechanism is installed in the middle of the rear portion of the combination mechanism, the exchange mechanism is fixed to the top of the combination mechanism, opening and closing mechanisms are installed on the upper portions of the two sides of the combination mechanism, and a protection mechanism is arranged in the placing mechanism. Compared with an existing device, the cab assembly with the high torsional rigidity has the advantages that the interior of a cab can be monitored through the flame sensor, when a fire breaks out, recognition can be conducted at the first time, and the mounting plate and the covering plate can be driven to turn over through a servo motor by means of signal transmission; the input end of the water spraying head is connected with a water pipe, water spraying and fire extinguishing are conducted at the first time, the situation that time is delayed, manual operation is not in time, and fire behavior is increased is avoided, meanwhile, the water spraying head can be driven by the motor to swing, and therefore the fire extinguishing range is widened.

The invention discloses a method for measuring water in oil-water separation and a device for the same, wherein the device comprises at least two measuring cylinders which are sequentially arranged, the upper ends of the measuring cylinders are opened, and the lower ends of the measuring cylinders are provided with bases; a flow guide branch tube is arranged between the two adjacent measuring cylinders, the inlet end of one flow guide branch tube is communicated with the upper part of the front measuring cylinder, and the outlet end of the flow guide branch tube extends to the opening of the upper end of the adjacent subsequent measuring cylinder; and the flow guide branch tube is upwards and slantwise connected on the measuring cylinder, and the highest point of the flow guide branch tube is lower than the opening of the upper end of the connected measuring cylinder. The method for measuring the water in the oil-water separation and the device for the same, disclosed by the invention, perform the separation by a principle of oil-water density difference, adequately separate oil and water from an oil-water mixture generated by an indoor oil displacement experiment via the plurality of measuring cylinders which are arranged in parallel and communicated in one direction, and have the advantages of being high in measuring accuracy, simple in structure, low in cost and convenient for cleaning. The method and the device are suitable for performing the oil-water separation on the oil-water mixture generated by the indoor oil displacement experiment for tertiary oil recovery.

The invention discloses an intelligent control system for a multifunctional rainwater regulation and storage pond. The system comprises a field layer, a monitoring layer and an internet layer; the field layer comprises a regulation and storage pond water inlet valve, a regulation and storage pond liquid level meter, a water quality detector, a water pump, a water outlet tank liquid level meter, aclean water pump, a shut-off valve, a drain pump and a three-way valve; the monitoring layer comprises a PLC, a switchboard and an engineer station, the PLC controls the regulation and storage pond water inlet valve, the regulation and storage pond liquid level meter, the water quality detector, the water pump, the water outlet tank water level meter, the clean water pump, the shut-off valve, thedrain pump and the three-way valve to work, and the PLC is connected with the engineer station through the switchboard; the internet layer comprises a server, and the server is connected with the switchboard. The invention further provides an intelligent control method for the multifunctional rainwater regulation and storage pond. In the intelligent control system and method, appropriate functionsare automatically selected according to current weather conditions, the multi-functionalization of the regulation and storage pond is realized, and the functions of regulation and storage, surface source pollution control and rainwater reuse are integrated in the regulation and storage pond.

The invention discloses a drainage ball containing bag for patients suffering from mammary gland diseases. The bag comprises a bag body and a band connected with the bag body; the bag body is made oftransparent materials and internally provided with at least one drainage ball fixing bag which is made of transparent materials and provided with scales used for counting drainage amount. The containing bag of the structure can not only supply sufficient storage space to drainage balls but also ensure that the drainage balls can be reliably placed and have a certain activity freedom degree, drainage pipes are prevented from being detached due to pulling, and additionally, great convenience is provided for counting the drainage amount.

The invention discloses a distributed circular seam ejector device. The device adopts a pipeline connection method, which includes sequentially connected low-energy fluid inlet section, high-energy fluid inlet section and mixed fluid outlet section; the binary annular ejector is installed in the pipeline near the high-energy fluid inlet section; the surface of the high-energy fluid inlet section The through hole is connected with the external high-pressure tank; the low-energy fluid inlet section, the high-energy fluid inlet section and the mixed fluid outlet section are concentric with the central axis; The pipe units are connected by reinforcing ribs, and some of the reinforcing ribs are hollow. The high-energy fluid enters the nozzle unit body from the through hole of the high-energy fluid inlet section and sprays out from the outlet; the nozzle unit body is provided with an annular nozzle. The device is suitable for fluid ejection control of gas and liquid. The device improves the ejection efficiency, reduces the outer dimension of the ejector device, and reduces the space installation requirement of the ejector device.