39results about How to "Long range" patented technology

The invention discloses a tilting multi-rotor unmanned aerial vehicle and a tilting transition method, and belongs to the technical field of unmanned aerial vehicles. The tilting multi-rotor unmanned aerial vehicle comprises a fuselage, wings are symmetrically arranged on the two sides of the fuselage, wingtip small wings with rudders are arranged at the tail ends of the wings, and front tilting mechanisms symmetrically arranged relative to the fuselage are arranged at the front end of the fuselage; rear tilting mechanisms which are symmetrically arranged relative to the fuselage are arranged at the rear end of the fuselage, and a propeller is arranged in the middle of the rear end of the fuselage; the front tilting mechanism comprises a front propeller, the front propeller is connected with the fuselage through a tilting power structure, the rear tilting mechanism comprises a rear propeller, and the rear propeller is connected with the fuselage through a tilting power structure. According to the tilting multi-rotor unmanned aerial vehicle and the tilting transition method, the fuselage layout is matched with the front tilting mechanism and the rear tilting mechanism, the flight stability is improved, and higher air maneuverability is achieved.

The invention discloses a vertical take-off and landing flying-wing aircraft, belongs to the field of aircraft design, and solves the problem that an existing vertical take-off and landing flying-wing aircraft is poor in stability. A vertical take-off and landing flying wing aircraft comprises a fuselage, wings, a rotor wing module and a tail thrust module, the wings are arranged on the fuselage, the rotor wing module is arranged on the wings, and the tail thrust module is arranged at the tail end of the fuselage; when the aircraft is in take-off, landing and hovering stages, lift force is provided for the aircraft through the rotor wing module, and when the aircraft is in a cruising stage, thrust is provided for the aircraft under the action of the tail thrust module and the wings, so that the effect of improving the stability of the aircraft is achieved. The aircraft has two flight modes, namely a vertical take-off and landing mode and a horizontal cruise mode, so that a farther voyage and a higher speed of the aircraft are realized.

The breaking hammer with the intelligent dust suppression system comprises a breaking hammer body, the breaking hammer body comprises a shell, a top plate is arranged at the top of the shell, a top dust removal device is arranged at the top of the top plate, a connecting support is arranged at the top of the top dust removal device, and the connecting support is used for being connected with a connecting system of an excavator or a loader; a bottom dust removal device is arranged at the bottom of the shell, a core body is arranged in the shell, the lower end of the core body is connected with a drill rod, and the drill rod penetrates out of the bottom dust removal device; the top dust removal device is connected with an external water pipe, the external water pipe is connected with a water supply system of the excavator or the loader, and a conveying water pipe is connected between the top dust removal device and the bottom dust removal device. The breaking hammer foot valve is connected with the electromagnetic valve in an output signal mode, when the foot valve is treaded, namely the breaking hammer is started to work, the electromagnetic valve receives a pressure signal and an output port is reversed at the moment, and liquid is conveyed to the breaking hammer dust removal device through the water pipe and sprayed through a nozzle arranged on the dust removal device at the moment.

The invention discloses a continuous zooming long-wave infrared lens suitable for a large-target-surface uncooled detector, which is characterized in that seven lenses are arranged from an object side to an image side, and a structural form of primary imaging, negative group zooming and positive group compensation zooming is adopted; a front fixed group lens, a zoom lens, a first compensation group lens, a second compensation group lens, a first rear group lens, a second rear group lens and a third rear group lens are sequentially arranged from an object space to an image space along an optical axis; during continuous zooming, the zoom lens moves towards the object space, the first compensation group lens and the second compensation group lens move towards the image space, and conversion from a small view field to a large view field is achieved. And the zoom lens, the first compensation group lens and the second compensation group lens do nonlinear motion to obtain a full-focal-length clear image. According to the invention, the design of a continuous zooming infrared optical system with a large target surface and a large relative aperture is realized, the movement of the cam is smoother and more stable, and the imaging quality in a temperature range of-40 DEG C to 65 DEG C is good.

The invention discloses a multiband intercept jammer based on light guide microwaves. The multiband intercept jammer comprises a radar detection system, a photoelectric tracking system, a radio monitoring system, an intercept jamming system and a master control system, the radar detection system is used for carrying out target detection on an intercept jammer jurisdiction airspace and completing acquisition of target motion parameter information after a target is detected; the photoelectric tracking system is used for identifying and tracking a target in a jurisdiction airspace of the interception jammer and transmitting a real-time image to the main control system; the radio monitoring system is used for monitoring, receiving and analyzing a target flight control signal so as to obtain azimuth information of a target; the interception interference system is used for implementing suppression interference on a target flight control signal to force a target to land; the master control system is used for processing information collected by the radar detection system, the photoelectric tracking system, the radio monitoring system and the interception interference system and sending control commands.

The invention relates to the technical field of road maintenance, and particularly discloses a road bridge and tunnel construction device which comprises a movable base, a water storage tank fixedly connected with the movable base, a mounting box with an opening in the bottom and an adjusting mechanism arranged in the mounting box. The mounting box is fixedly connected with the water tank, and air ports are formed in the two sides of the mounting box; the maintenance mechanism comprises a vertical pipe, a transverse pipe and adjusting assemblies symmetrically arranged on the two sides of the vertical pipe in the length direction of the vertical pipe. The vertical pipe is fixedly connected with the mounting box and is communicated with the water tank; the transverse pipe is communicated with the free end of the vertical pipe; the adjusting assembly comprises an adjusting pipe, an atomizing nozzle, a maintaining part, a side hole formed in the vertical pipe, a top hole formed in the transverse pipe, an adjusting block used for sealing the top hole and a driving part used for driving the adjusting block to do reciprocating motion in the length direction of the transverse pipe. The problem that an existing spraying device cannot carry out dust falling treatment on dust dispersed on a road surface is solved.

The utility model belongs to the technical field of fire fighting equipment, and discloses a multipurpose water gun which comprises a connecting pipe, an elbow and a puncture head, and a connecting mechanism is arranged on the connecting pipe; the connecting mechanism comprises a mounting pipe, a fixed frame, a movable frame, a fixed cylinder and a clamping plate, the mounting pipe is integrally formed at one end of the connecting pipe, the fixed frame is welded and fixed to the outer wall of the mounting pipe, the movable frame is slidably mounted on the inner wall of the fixed frame, the fixed cylinder is fixedly mounted at the top of one side of the movable frame, and the clamping plate is fixedly mounted at the bottom of one side of the movable frame; according to the utility model, the connecting mechanism is arranged, the elbow and the interface of the interface pipe at the bottom of the puncture head are positioned on the side surface, the joint of the mounting pipe is transversely connected with the interface on the side surface of the interface pipe through bending, and the other side of the interface pipe is fixed through the fixing cylinder on the fixing frame; the connector pipe is fixed from the bottom of the connector pipe through the clamping plate on the fixing frame, the connection strength between the elbow and the installation pipe and between the puncture head and the installation pipe is improved, and the nozzle in the fire-fighting lance is connected more stably.

The invention relates to the technical field of tunnel dust falling, in particular to a tunnel construction dust falling device which comprises a base, a water tank and a storage box are sequentially arranged on the base, a lifting mechanism is arranged in the storage box, a U-shaped mounting groove with an opening in the upper end is formed in the lifting mechanism, a rotating mechanism is arranged in the mounting groove, and a spraying cylinder is arranged at the top of the rotating mechanism. An angle adjusting mechanism is arranged between the spraying cylinder and the rotating mechanism; a water supply hose is communicated between the spraying cylinder and the water tank; a water suction pump is arranged on the water supply hose; a spraying mechanism is arranged at one end of the spraying barrel and comprises a partition plate, a water outlet, a spraying pipe and a nozzle, sliding grooves are formed in the inner walls of the two sides of the spraying pipe, sliding blocks are arranged in the sliding grooves in a sliding mode, and a plurality of spraying openings are formed in the two side walls of the spraying pipe respectively; an atomizing motor is arranged in the atomizing cylinder, the atomizing motor is connected into the atomizing cylinder through a mounting rod, and stirring blades are arranged at the output end of the atomizing motor. The dust falling device is ingenious in structural design, good in dust falling effect and high in efficiency.

The utility model provides an efficient SNCR (selective non-catalytic reduction) denitration spray gun which comprises a gun body, one end of the gun body is connected with a gun barrel through a mounting seat, the gun body and the gun barrel are mounted in a furnace wall, and a damping structure is arranged on the surface of the gun barrel and used for buffering vibration between the furnace wall and the spray gun. The top of the gun body is provided with a first spray head communicated with an inner cavity of the gun body, the top of the first spray head is covered with a second spray head, one side of the gun body is communicated with an air inlet pipe and a liquid inlet pipe, one end of the air inlet pipe is communicated with compressed air, and one end of the liquid inlet pipe is communicated with liquid ammonia. By arranging the first spray head and the second spray head, liquid ammonia is atomized by the first spray head, and the atomized liquid ammonia is converged through the second spray head, enters the front spray hole of the second spray head and then is sprayed forwards, so that the spraying range of the liquid ammonia is increased, the liquid ammonia is sprayed into a reaction center, the reaction area of the liquid ammonia is increased, and the spraying range of the liquid ammonia is farther; and the SNCR denitration reaction efficiency is improved.

This utility model belongs to the technical field of fire-fighting equipment, and particularly relates to a multi-functional foam gun. It includes a first gun body, a primary foaming tube, a connector assembly, a secondary foaming tube, and a foam net holder. The primary foaming tube is installed at the front end of the first gun body, and the secondary foaming tube is installed at the front end of the primary foaming tube via the connector assembly. The foam net holder is installed at the outlet of the secondary foaming tube. The outer wall of the primary foaming tube is surrounded by several first suction holes, which are perpendicular to the central axis of the primary foaming tube. The outer wall of the secondary foaming tube is surrounded by several second suction holes, which are parallel to the central axis of the secondary foaming tube. This utility model uses a secondary negative pressure suction method combined with a foam net to achieve a final foaming ratio of 20 times for the foam extinguishing agent. In this state, the foam extinguishing agent has a low water content, low impact force, and short range, making it suitable for close-range coverage of fire sources, effectively extinguishing fires and preventing reignition.

The invention relates to the technical field of aircraft control, in particular to a simulation deformation aircraft and a control method. Comprising the following steps: S1, acquiring parameter data of an aircraft, dividing the moving form of the aircraft into a flight mode and a ground mode according to the parameter data, and then summarizing to establish an aircraft form database; s2, performing aerial measurement and investigation in the moving process of the aircraft, acquiring surrounding environment data of the aircraft, and then extracting a movable path by combining the surrounding environment data with the aircraft form database; s3, extracting a qualified moving form corresponding to the movable path; a navigation path is generated by combining a real-time position of an aircraft and a movable path selected by a user, and is continuously optimized in a simulation process, and an optimal moving path and form combination is selected by performing performance evaluation and comprehensive scoring on different moving forms, so that the most efficient flight is realized.

The invention relates to the field of engines and aircrafts, in particular to a curved tube engine, a curved tube engine aircraft and a control method thereof.The curved tube engine comprises a curved tube and a high-speed fluid generator, the high-speed fluid generator sprays high-speed fluid into the curved tube, and the high-speed fluid acts on the convex face of the inner wall of the curved tube to generate a low-pressure area; the high-speed fluid acts with the concave surface of the inner wall of the curved tube to generate a high-pressure area, and the curved tube engine is subjected to a pushing force F pointing to the concave surface of the inner wall from the convex surface of the inner wall of the curved tube under the action of pressure difference, so that the curved tube engine aircraft is pushed to complete maneuvers such as vertical take-off and landing, hovering and level flight. The engine is large in power load, high in thrust-weight ratio, simple, durable, safe, efficient and convenient to use and maintain, the maximum takeoff weight can exceed that of a large fixed-wing passenger plane with the same power, the engine has the advantages of being large in load, high in speed, long in voyage, high in lift limit, low in noise, convenient to operate and the like, and therefore the problems that an existing engine and an existing aircraft are low in efficiency and not high in safety are solved.

The utility model discloses an optical system suitable for stage light beam lamp. The optical system includes the focusing lens module, the middle lens module and the front lens module who sets gradually from object side to image side along the optical axis direction, and the front lens module, the middle lens module all have positive focal power, and the focusing lens module has negative focal power, the front lens module includes at least one front group lens piece, and the image side surface of front group lens piece is the convex surface, the middle lens module includes the third lens piece, the second lens piece and the first lens piece who sets in order along the optical axis direction, and the first and second lens piece are all meniscus positive lens, and the third lens piece is meniscus negative lens, and the second and third lens piece are glued and are connected as an integral structure, and the focusing lens module includes at least one focusing lens piece, and the focusing lens module is translated before and after along the optical axis between the middle lens module and the light source, to adjust the spot definition to different projection distance. The utility model can shorten the length of overall optical path while guaranteeing the spot definition and the beam sharpness.

The utility model discloses a medicine launcher, which belongs to the technical field of fire-fighting instruments and comprises a launcher main body and a launching tube filled with ammunition, the launching tube can be inserted into the launcher main body and is detachably connected with the launcher main body, and the ammunition is filled with medicine; a storage battery, an air storage chamber and a pneumatic cavity are arranged in the launcher body, an air inlet of the pneumatic cavity is connected with the inflation pipe, two air outlets of the pneumatic cavity are connected with the launching pipe and the air storage chamber respectively, an airflow conversion mechanism connected with the launching switch is arranged in the pneumatic cavity, and the airflow conversion mechanism and the launching switch are both connected with the storage battery. Compressed air is injected into the air storage chamber through the inflation pipe, the launching pipe containing ammunition is installed in the launching body, and the launching switch controls the airflow conversion mechanism to enable high-pressure air in the air storage chamber to enter the launching pipe to drive the ammunition to be launched at a high speed. The remote pesticide feeder is simple in structure, convenient to operate, safe, efficient, long in range, low in manufacturing cost and capable of being applied to scenes needing remote pesticide feeding in fire fighting, agriculture, forestry, animal industry and pest control.

The utility model discloses a meridian acceleration impeller with an outlet straight section flow channel and a fan, the fan comprises the meridian acceleration impeller and a motor, the meridian acceleration impeller is installed on the motor and driven by the motor, and the meridian acceleration impeller with the outlet straight section flow channel is adopted as the meridian acceleration impeller. A straight section is arranged at an impeller air outlet of the meridian acceleration impeller outer ring, the angle alpha of the meridian acceleration impeller outer ring relative to a rotating shaft from an impeller air inlet to the impeller air outlet is firstly increased and then reduced to be transited to beta, beta = [0 degree, alpha], and the angle of the straight section relative to the rotating shaft is kept beta or gradually transited to beta from alpha. According to the meridian acceleration type fan, the straight section flow channel is additionally arranged, so that a relatively farther range can be provided and noise can be reduced on the basis of high static pressure of the meridian acceleration impeller, and the structure of the straight section of the meridian acceleration impeller can improve the overall strength of the impeller and improve impeller jumping at the same time.

The invention discloses a static millimeter wave wide-field dual-polarization superstructure detector for non-interactive personnel security inspection, and belongs to the technical field of detectors. The electromagnetic receiving and transmitting module is used in cooperation with a built-in micro-motion rotary table, a system-level static wide-view-field scanning mechanism is achieved, dynamic time sequence beam deflection can be achieved, and the electromagnetic receiving and transmitting module is a wide-view-field super-structure lens; the built-in micro-motion turntable controls the transmitting and receiving feed antenna of the electromagnetic receiving and transmitting module to regulate and control the direction of millimeter wave transmitting and receiving beams, so that directional signal transmitting and receiving in a large range are realized; the data acquisition module is used for reading the recovered voltage signals converted by the co-polarization and cross-polarization scattering echoes; and the upper computer module is used for analyzing the acquired dual polarization data. The invention aims to replace a heavy and clumsy dielectric lens in a traditional millimeter wave personnel security inspection system, so that the wide-view-field scanning performance is improved while the integration level and the lightweight level of the system are improved.

A facultative tank air pressure stirrer comprises a water accumulation tank, a three-way electromagnetic valve and a controller, the water accumulation tank is of a hollow structure and arranged in a facultative tank, the top of the water accumulation tank is exposed out of the water surface, a large-caliber water opening is formed in the bottom, and an air tap is arranged on the top; the three-way electromagnetic valve is electrically connected with the controller, and three ports of the three-way electromagnetic valve are connected with a compressed air source, an air nozzle and the atmosphere through pipelines respectively. The sewage tank is simple and reliable in structure and low in energy consumption, sewage injected into the water accumulation tank is discharged at a high speed through compressed air, the jet range is long, sludge deposited at the bottom of the facultative tank is impacted and stirred through water flow, the stirring effect is good, dissolved oxygen of a water body is basically not increased, and the external space of the sewage tank is not occupied.

The unmanned aerial vehicle with the rotor wing structure comprises an aerial vehicle body, the top of the aerial vehicle body is connected with a horizontally-arranged unpowered rotor wing through a clutch driving device, the two sides of the aerial vehicle body are fixedly connected with wings, the bottom side wall of each wing is fixedly connected with a mounting rod, and the bottom side wall of each wing is fixedly connected with a rotating shaft. The bottom sides of the two ends of each mounting rod are connected with horizontal propellers through first driving motors, and the tail of the aircraft fuselage is connected with a vertically-arranged tail rotor wing through a direction driving device. According to the aircraft, the advantages that an unmanned aerial vehicle takes off without a runway, takes off and lands vertically, hovers freely and flies flexibly are perfectly combined with the advantages that a rotorcraft is simple in structure, saves energy and is high in safety, and finally the purposes that the carrying capacity is larger, the flight time is longer, the voyage is farther and the flight is safer are achieved.

The invention discloses a distance measurement structure for measuring the distance between two objects and a measurement method based on the structure. The structure comprises two measured objects, two laser rangefinders of the same type, three GNSS receiving antennas, a set of wireless data transceiver modules, and two GNSS receivers. A laser rangefinder, a GNSS receiving antenna, and a GNSS receiver are arranged at object 1, a laser rangefinder, a GNSS antenna, and a GNSS receiver are arranged at object 2, another GNSS antenna is arranged at a distance of about 2 to 3 meters from object 2, the GNSS receivers respectively contain the above-mentioned wireless data transceiver modules, the GNSS receivers receive navigation satellite signals through the three GNSS antennas and the wireless data transceiver modules to achieve connection, and the distance measurement device and the measurement method based on the device of the invention have the advantages of simple composition, easy to carry, install, promote and apply, long working distance, safe and reliable distance measurement results, etc., and are particularly suitable for real-time distance measurement in railway shunting and coupling operations.

The invention discloses an oil-driven four-rotor unmanned aerial vehicle. The unmanned aerial vehicle comprises a body frame, a control module, a power module, a transmission module and a rotor module, the control module is installed in the body frame, the power modules are installed on the two sides of the control module respectively, the transmission modules are installed on the two sides of each set of power modules respectively, and the rotor modules are installed at the other ends of the transmission modules respectively. And the transmission module and the rotor wing module are foldable. The invention has the advantages that the body frame adopts a steel-aluminum mixed truss structure and is light in weight, high in strength and rigidity, fast to manufacture and low in cost; modularization design is adopted as a whole, all parts are convenient to disassemble, assemble and replace, and meanwhile more expansion space is provided. The transmission module and the rotor modules are foldable, so that the transportation space is reduced; the dual-power module is adopted to drive the dual-transmission module, so that the load is larger, the voyage is farther, the flight envelope is larger, and the power transmission efficiency is higher; the flight attitude is controlled by changing the rotor pitch, the operation stability is better, and the wind resistance is higher.

The utility model discloses an integrated flashlight. The integrated flashlight comprises a flashlight body, a PCBA board, a lamp panel and a battery piece, the lamp panel, the PCBA board and the battery piece are all installed on the flashlight body, the lamp panel and the battery piece are electrically connected to the PCBA board, and the lamp panel is provided with a main lamp bead, a UV lamp bead and a red and green laser lamp bead. The main lamp beads, the UV lamp beads and the red and green laser lamp beads are arranged on the lamp panel, so that the diversification of the lighting function is realized; the main lamp bead serves as a basic illumination light source, high-brightness and long-range light can be provided, and the requirement for large-range illumination in the dark environment is met; the UV lamp bead has an ultraviolet light emission function and plays an important role in the fields of industrial detection, medical disinfection, anti-counterfeiting identification and the like; the red laser has high penetrability and good visibility, and can be used for indicating a target position and positioning or marking at night or in a low-visibility environment; and the green laser has a farther visual distance and a clearer indication effect.

This utility model discloses a quencher, comprising: a tank body, the tank body being hollow; one or more high-temperature pipelines disposed within the tank body; multiple low-temperature pipelines disposed within the tank body and surrounding the high-temperature pipelines; and multiple nozzles, the nozzles being connected to the low-temperature pipelines, each nozzle including a connecting portion connected to the low-temperature pipeline and a nozzle for spraying, the nozzle having a flat, straight cross-section and facing the high-temperature pipeline.

The utility model relates to the technical field of police instruments, in particular to a liquid jetting device and violence control equipment. The liquid spraying device comprises a spraying assembly and an emitting assembly, the spraying assembly comprises a liquid storage pipe, a nozzle and a piston, the nozzle and the piston are arranged at the front end and the rear end of the liquid storage pipe correspondingly, so that a liquid storage cavity is defined in the liquid storage pipe, and the liquid storage cavity is used for storing liquid; the launching assembly comprises a base and a gas releasing part, the base is provided with a gas guide passage, the rear end of the liquid storage pipe is communicated with the gas guide passage, and the gas releasing part is communicated with the gas guide passage and used for releasing high-pressure gas to the gas guide passage so as to push the piston to squeeze the liquid and enable the liquid to be sprayed out of the nozzle. According to the liquid jetting device and the violence control equipment, the high-pressure gas is released through the gas releasing part to push the piston to move, so that the liquid is squeezed to be jetted out of the nozzle, the liquid is jetted out at a high speed, the range is farther, better targeting performance is achieved, and the problems that the using effect is poor and an operator is prone to being accidentally injured are solved.

This invention discloses a modular lift supply aircraft, a combined aircraft, and a method for operating the combined aircraft, relating to the field of aircraft technology. The modular lift supply aircraft is equipped with a lift-providing device, a male docking head, and a female docking head. The combined aircraft includes a main aircraft and a modular lift supply aircraft mounted on the main aircraft. This invention provides a modular lift supply aircraft, a combined aircraft, and a method for operating the combined aircraft, enabling fixed-wing aircraft to achieve vertical takeoff and landing capabilities while still maintaining large payload, long range, and good stealth performance.

The invention discloses a broadband navigation decoy, suppression and interference integrated system based on a light guide microwave technology. The broadband navigation decoy, suppression and interference integrated system comprises a radar detection subsystem, a photoelectric tracking subsystem, a radio monitoring subsystem, an interception interference subsystem, a navigation decoy subsystem and a main control system. The target is effectively intercepted by adopting a mode of combining interception interference and navigation decoy, and the target can be landed to a specified airspace under the condition that the target is in a controllable state, so that secondary damage of the target to the ground can be greatly avoided, and the safety of facilities and personnel in the airspace governed by the system is effectively ensured. According to the invention, radar detection, photoelectric detection and radio detection are combined to improve the target detection and identification precision and speed of the system; the system has the advantages of being long in acting distance, wide in acting target range, high in maneuvering performance and real-time, and can meet the real requirements of target defense of various important and sensitive airspaces.

The preparation method comprises the following steps: step 1, taking a mixed solution of acetone and ethanol as a solvent, adding N, N-dimethyl propane diamine, diethyl ether and perfluorononanoic acid into the mixed solution of acetone and ethanol, after complete reaction, adding chloropropene, continuing reaction, and after the reaction is finished, evaporating to remove the solvent to obtain a polymer oil-displacing agent; the fluorine-carbon cation hydrophobic monomer CF-1 is obtained; step 2, uniformly mixing white oil and an emulsifier Span80 and Tween 80 in a mass ratio of (35-45): (1-3): (1-2) to obtain an oil phase; the preparation method comprises the following steps: dissolving AM, sodium p-styrenesulfonate and a fluorocarbon cation hydrophobic monomer CF-1 in deionized water, adding sodium hydrogen sulfite, and uniformly stirring to obtain an aqueous solution; and adding the aqueous solution into the oil phase to obtain a uniform emulsion, adding ammonium persulfate, and reacting to obtain the high-molecular oil-displacing agent. The oil-displacing agent has high temperature resistance and salt resistance, and the adsorption of carbonate reservoirs to the oil-displacing agent is greatly reduced.

The present invention discloses a hand-cranked oar movement mechanism, which relates to the technical field of hand-cranked boats, comprising a buoyancy platform main body frame, on which a power transmission mechanism bracket is fixedly connected; the power transmission mechanism bracket is fixedly connected to a motor, and the motor output shaft drives a large gear to be rotatably connected to the side wall of the power transmission mechanism bracket through a gear, so that an upper rod can be moved to adjust the height position, and then the height of the oar connection bracket can be adjusted according to the aforementioned method, and the universal shaft can be driven to adjust the height to match the outer edge fixed inner arc bearing. The combined effect enables the oar to be adjusted to different ranges, heights and movement speeds, thereby enhancing the high universality of the mechanical structure to different oars and different water depths, and greatly increasing the application scope and scenarios of the structure.

The invention relates to the related technical field of thermal insulation material production, and discloses an intelligent dust falling device for thermal insulation material production, the intelligent dust falling device comprises a mist spraying device mounted above an equipment box body, the mist spraying device comprises an adjusting pipe, a rotating pipe and a central pipe, one end of the adjusting pipe is rotatably connected with the rotating pipe, and the rotating pipe is rotatably connected with the central pipe; one end of the rotating pipe is connected with the central pipe, a mist discharging cavity is formed in the central pipe, a water spraying barrel shell is installed in the mist discharging cavity, and a water inlet cavity, a water pump cavity, a water collecting cavity and an equipment cavity are sequentially formed in the water spraying barrel shell; according to the device, water firstly enters the flexible drainage pipe, then the rotating motor is started and drives the driving gear to rotate, the rotating action is conducted to the three driving gears, it is ensured that in the rotating process, at least one driving gear continuously makes contact with the flexible drainage pipe and applies extrusion, and a negative pressure environment in the pipe is created; and then water is sucked from the water collecting cavity, and the driving gear rotates continuously.

The present disclosure a lithium battery and a preparation method thereof, a charging method and a powered vehicle. The lithium battery includes a positive electrode plate, a negative electrode plate, a separator located between the positive electrode plate and the negative electrode plate, and an electrolyte solution. The negative electrode material layer of the negative electrode plate includes a lithium-silicon composite negative electrode active material. The negative electrode material layer has a protective layer on the surface or the lithium-silicon composite negative electrode active material has a protective layer on the surface. The protective layer includes a polymer matrix and a lithium salt. When the lithium battery is fully charged, the lithium-silicon composite negative electrode active material includes elemental lithium and a lithium-silicon alloy Li4.4Si, and the elemental lithium accounts for 15%-95% by mole of the lithium-silicon composite negative electrode active material.

The invention relates to the field of flue gas purification product resource utilization and coal rock gas yield increase and injection increase, in particular to an alkaline desulfurization and denitrification agent and application thereof in coupling of a flue gas resource desulfurization and denitrification process and coal rock gas acidification yield increase and injection increase. The invention provides an alkaline desulfurization and denitrification agent, the alkaline desulfurization and denitrification agent contains camellia saponin and a crown ether ring structure, sulfuric acid, nitric acid and fluoboric acid mixed salt of the alkaline desulfurization and denitrification agent is generated after desulfurization and denitrification, the mixed salt is used for coal rock gas acidification, flue gas desulfurization and denitrification waste liquid can be recycled, and the desulfurization and denitrification cost can be recovered; in addition, a bis-imidazoline alkaline desulfurization and denitrification agent containing crown ether and camellia saponin is combined with plasma irradiation oxidation to perform desulfurization and denitrification on the flue gas, and the desulfurization and denitrification waste liquid is used for reservoir transformation, so that environmental pollution can be better treated, one agent can be used for multiple purposes, the acidification cost of the carbonate reservoir is reduced, and slow acidification and diverted acidification are realized at the same time.