22results about How to "Launch stable" patented technology

The utility model discloses a launching rack which comprises a launching platform (31), a rear supporting assembly (3) and a front supporting assembly (4). The front supporting assembly (4) is used for bearing a front supporting point of the aircraft; the rear supporting assembly (3) is used for bearing a rear fulcrum of the aircraft and limiting the rear fulcrum; the front supporting assembly (4) is hinged to the launching platform (31). A spring assembly (5) is arranged between the launching platform (31) and the front supporting assembly (4), and when the front supporting assembly (4) is in the vertical state, the spring assembly (5) provides acting force enabling the front supporting assembly (4) to rotate in the launching direction of the aircraft in the free state. When the unmanned aerial vehicle is separated from the launching rack, the front supporting assembly (4) is rapidly pulled to the horizontal state and locked through the spring assembly (5) arranged between the launching platform (31) and the front supporting assembly (4), and interference and collision between the unmanned aerial vehicle and the front supporting assembly are effectively avoided.

The invention relates to the technical field of unmanned aerial vehicle launchers, in particular to a marine unmanned aerial vehicle launcher. The marine unmanned aerial vehicle launcher comprises a supporting frame, a bottom bracket, a telescopic piece, an angle adjusting assembly, a lifting frame, a front supporting assembly and a rear supporting assembly. The two ends of the telescopic pieces are rotationally connected with the supporting frame and the bottom bracket correspondingly, and the multiple telescopic pieces are arranged at intervals; the angle adjusting assembly is arranged on the bottom bracket and is in transmission connection with the lifting frame; the front supporting assembly and the rear supporting assembly are arranged on the lifting frame at intervals in the length direction of the lifting frame, and the front supporting assembly and the rear supporting assembly are both used for being connected with the unmanned aerial vehicle. The front supporting assembly locks or releases the lug rods through the lock catches, so that the levelness of the bottom bracket can be adjusted by adjusting the lengths of the multiple telescopic pieces, it is guaranteed that the levelness of the bottom bracket is within the set range, and therefore the launching accuracy of the unmanned aerial vehicle is guaranteed.

The invention relates to the technical field of unmanned aerial vehicle launching, in particular to a medium-large unmanned aerial vehicle ejection device and ejection method. A medium and large unmanned aerial vehicle ejection device comprises a supporting platform provided with a sliding rail suitable for sliding of a tackle; the pulley is arranged on the sliding rail in a sliding manner; the lifting assembly is arranged on one side of the supporting platform and comprises a lifting driving structure connected with the supporting platform and a lifting platform connected with the lifting driving structure, and the lifting platform is suitable for being lifted to a first position flush with the tackle under the action of the lifting driving structure so as to convey the unmanned aerial vehicle to the tackle; or descending to a second position flush with the bottom of the supporting platform; and the overturning assembly is arranged on one side of the lifting assembly, rotationally connected with the lifting assembly and suitable for overturning the lifting assembly from a third position where the lifting assembly is folded on the supporting platform to a second position where the lifting assembly is arranged on one side of the supporting platform under the action of driving force. The invention provides a medium and large unmanned aerial vehicle ejection device and ejection method.

The utility model discloses a large carrier rocket launching device, which belongs to the technical field of rocket launching and comprises a mounting table, a supporting tower is fixedly connected to the top surface of the mounting table, a rotating rod is rotatably connected to the supporting tower through a through hole formed in the supporting tower, and a clamping frame is fixedly connected to the outer wall of the rotating rod. A cooling assembly is arranged on the top face of the mounting table, and a flow guide assembly is arranged at the bottom end of the rocket. According to the rocket launching device, the water spraying frame is arranged in the rocket launching device, when a rocket is launched, the electric push rod is started, the electric push rod drives the water spraying frame to move, water in the water tank is conveyed into the spraying head through the water pipe to be sprayed out, and meanwhile the water spraying frame drives the clamping frame to rotate through the rack so that the clamping frame can be separated from the rocket; the device near the bottom of the rocket and the ground are cooled, the situation that the device is damaged by too high temperature, and consequently rocket launching is influenced is prevented, the influence of high temperature on rocket launching can be reduced, and therefore the rocket is stably launched.

The utility model relates to the technical field of rubber band guns, in particular to a spot shooting and continuous shooting exchange mechanism and a rubber band gun, the spot shooting and continuous shooting exchange mechanism comprises a first locking piece, a second locking piece, a trigger and a conversion clamping piece, the trigger is rotatably connected with a gun body, and the middle of the first locking piece and the middle of the second locking piece are rotatably connected with the gun body through pin shafts; the first locking piece is provided with a poke rod portion facing the trigger, the first locking piece and the second locking piece are connected with the gun body through a first spring and a second spring respectively, the middle of the trigger is rotationally connected with the gun body, and the upper side of the trigger is provided with a poke protrusion which pokes the poke rod portion of the first locking piece through rotation of the trigger. The trigger is connected with the second locking piece through the pull rod, the side face of the second locking piece is in driving connection with a conversion clamping piece installed on the gun body, and the rubber band gun manufactured through the scheme has the advantages of being simple in structure, stable in shooting, good in cooperation effect, high in interestingness and the like.

The present invention relates to an organic boron compound and its application in an organic electroluminescent device, belonging to the technical field of optoelectronic materials. The compound is composed of a main body formed by bonding imidazopyridine with nitrogen groups such as aromatic amine, carbazole, and acridine, and the main center is modified by boron, and has a rigid large conjugated structure. Due to the bipolar imidazopyridine group regulating the electrical supply / acceptance of the compound, the HOMO of the compound is reduced. The device prepared by using the compound as a light-emitting layer material exhibits stable and efficient deep blue light emission, and has achieved significant progress in driving voltage, current efficiency, light color and life.

This utility model discloses a WLAN antenna structure and a microcomputer, relating to the field of antenna technology. The WLAN antenna structure includes an antenna unit, which includes a dielectric substrate, an antenna ground plane, and radiating stubs. The radiating stubs are connected to the antenna ground plane, and the radiating stubs and the antenna ground plane are located on the same side of the dielectric substrate. The antenna unit is disposed in the microcomputer with the motherboard spaced apart and isolated from each other, and is connected by a feed line.

This invention discloses a high-speed parallel water entry experimental launching device and method for a vehicle, belonging to the field of hydrodynamic experiments. It includes a supporting base, a parallel controller, a parallel launching assembly, and a power unit. The parallel launching assembly is mounted on the supporting base via the parallel controller, and the power unit provides launching power and adjusts the water entry velocity. The parallel launching assembly includes a first launching device and a second launching device arranged side-by-side, enabling parallel launching of two projectiles and adjustment of the launching angle. The parallel controller includes a parallel control mechanism and a spacing adjustment mechanism. The parallel control mechanism ensures the relative parallelism of the first and second launching devices, while the spacing adjustment mechanism adjusts the launching distance between the first and second launching devices. This invention has a simple and practical structure, is easy to assemble, has high reliability and durability, and exhibits good repeatability and safety, providing experimental assurance for studying the hydrodynamic characteristics of structures at the moment of water entry.

The utility model discloses a device for stably supporting and protecting a roller way correlation grating, belongs to the technical field of bar production line signal detection equipment, and is used for stably supporting and protecting the roller way correlation grating. According to the technical scheme, a lower cross beam is a horizontally-placed steel cross beam, a transmitting box and a receiving box are perpendicularly fixed to the two ends of the lower cross beam respectively, grating holes are formed in the opposite side faces of box bodies of the transmitting box and the receiving box respectively, and the transmitting end and the receiving end of a correlation grating are fixed in the transmitting box and the receiving box respectively; the transmitting end and the receiving end of the correlation grating are respectively opposite, the bottom of the box body of the transmitting box and the bottom of the box body of the receiving box are respectively provided with threading holes, and grating wires are connected with the transmitting end and the receiving end of the correlation grating. According to the utility model, the transmitting end and the receiving end of the bijection grating of the roller bed can be stably supported, so that signal interruption caused by vibration of the roller bed is avoided, the running stability and accuracy of the bijection grating are improved, the bijection grating can be protected from being impacted by external force, and smooth production is ensured.

The utility model discloses a kind of ultraviolet light weathering test chamber with protective device, belong to ultraviolet light test chamber technical field, it includes: test chamber, the inside of two sides of test chamber is provided with mounting plate, two groups of mounting plate one side is fixedly installed with short plate, between two groups of short plate located in the same side is fixedly installed with ultraviolet lamp tube, the inside of two sides of test chamber is all set with placing groove and sliding slot, it is convenient to install, dismount and double fixing for mounting plate and ultraviolet lamp tube quickly, so that ultraviolet lamp tube can be replaced in time when failure or aging occurs, avoid the accuracy of test result due to lamp tube performance decline influence, can efficiently remove dust and impurity such as chippings generated in purification process, prevent its accumulation in test chamber, reduce the dust on the surface of lamp tube, avoid impurity to cause pollution or interference to sample, ensure the reliability of test result.

The application discloses a kind of unmanned aerial vehicle air-to-ground precision projection device based on dam inspection, belong to unmanned aerial vehicle mounting equipment technical field.Installation module is used to detachably fix the entire device to the bottom of unmanned aerial vehicle body;Storage module is connected with installation module, for storing material to be projected;Vector emission module is connected with installation module, and is connected with the discharge end of storage module, for receiving the material delivered by storage module, and controlling the emission vector of material;Trajectory solution module is respectively connected with vector emission module and the flight control system of unmanned aerial vehicle, for solving emission parameter according to real-time pose information, target position information and environmental parameter of unmanned aerial vehicle, and controlling the vector emission module executes projection.The present application solves the defects of existing device mounting inconvenience, storage confusion, large projection error, etc., can be widely used in emergency identification, medicament delivery or marker laying in dam inspection, improve the efficiency and accuracy of inspection.

The utility model relates to a multi-layer steel high-altitude firework barrel angle launching device, which belongs to the technical field of firework launching and comprises a U-shaped base, and the top end of the U-shaped base is rotatably connected with a fixing frame. Compared with the prior art, the fixing frame has the advantages that the damper can play an important buffering and damping role on the fixing frame, meanwhile, the damper can slide for a small distance in the sleeve and abut against the damping and buffering block, and the damping and buffering block is made of rubber, so that the buffering and damping role of the fixing frame can be improved, and the service life of the fixing frame is prolonged. The fixing frame can be more stable when fireworks are launched, the adjusting mechanism is not prone to being broken, the buffering effect of the fixing frame can be further improved through the arrangement of the secondary buffering mechanism, the fixing frame and the fireworks barrel are prevented from shaking, part of assemblies of the device are made of steel, the overall structure is firmer, and the service life of the fireworks is prolonged. Therefore, the safety performance of firework setting-off can be effectively improved.

The present invention discloses a photoelectric sensing circuit and a photoelectric sensor. The photoelectric sensing circuit includes a light driving module, a light sampling module, a control module and a signal output module. The light sampling module includes a photodiode, a signal filtering module, a reference voltage output module and a first switch module. The control module controls the driving module to drive the laser to emit a light signal, and inputs a voltage to the reference voltage output module to make the first switch module work and then make the light sampling module output a third electrical signal, receive the third electrical signal and control the signal output module to output a signal according to the third electrical signal. The technical solution has a simple circuit structure, high performance, low noise, high reliability and the like, can be widely used in fields requiring photoelectric sensing, and can suppress external interference, greatly improving the accuracy and stability of signal acquisition.

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle smoke cartridge launching device which comprises a bin body and a cover body. A plurality of cartridges are arranged in the bin body, fuming bullets are installed in the cartridges, contact plates are arranged on the cover body, the contact plates correspond to the fuming bullets one to one, a signal box is arranged on the cover body and connected with the unmanned aerial vehicle through a quick connecting device, and meanwhile a locking device is arranged between the cover body and the bin body. The locking device comprises a hook and a locking mechanism, the hook is connected with the cover body, and the locking mechanism is connected with the bin body and used for locking the bin body and the cover body. The smoke cartridge is simple, convenient and fast to use, install and use, the cover body and the bin body are matched more stably by arranging the locking device, circuit connection of the smoke cartridge is more stable by matching with the elastic contact plate, stable emission of the smoke cartridge can be guaranteed, and the smoke cartridge plays a promoting role in maintaining public security.

This utility model discloses an airdrop launch device for a rotary-wing airborne unmanned aerial vehicle (UAV), belonging to the field of UAV technology. It includes: a connecting base, a connecting support column, a projection compartment, a projection base plate, and an electronic drive mechanism. The connecting base has a connecting groove at its bottom; the projection compartment has a connecting mechanism at its top, and a digital servo mounting slot is provided on the outer surface of one side wall of the projection compartment; the projection base plate is hinged to the bottom of the other side wall of the projection compartment; one end of the connecting support column is installed in the connecting groove, and the other end is connected to the connecting mechanism of the projection compartment; the electronic drive mechanism includes a digital servo, a servo shaft, a servo arm, and a servo fixing hole; the digital servo is installed in the digital servo mounting slot of the projection compartment; the digital servo is connected to the servo arm via the servo shaft. This utility model, by designing a fixed-angle projection compartment, can effectively compensate for the pitch angle of the rotary-wing UAV during flight, thereby improving launch accuracy and flexibility.

The invention belongs to the technical field of railway traffic communication, and particularly relates to a communication anti-interference signal processing device for railway traffic, which comprises a main body assembly, and the main body assembly comprises a machine body assembly and a communication assembly. The regulation and control assembly comprises a rotating assembly, and an energy gathering assembly is arranged in an inner cavity of the machine body assembly; and the frequency control assembly comprises a sub-control assembly, and a pressing assembly is arranged in an inner cavity of the machine body assembly. When interference is large, the energy gathering part of the energy gathering assembly can extend out, the signal emission intensity and stability of the device in a certain direction are improved, the signal emission direction and angle of the device can be adjusted after the energy gathering part of the energy gathering assembly extends out, and therefore the device can cope with different signal transmission scenes, the applicability is improved, and the device is suitable for popularization and application. And during daily use, the overall frequency and strength of the device are adjusted, so that the interference electromagnetic frequency can be distinguished, and the anti-interference purpose is achieved.

The invention discloses an air-breathing fire smoke detector, and relates to the technical field of smoke sensing detectors, and the air-breathing fire smoke detector achieves the real-time monitoring of the air inlet flow rate through the additional arrangement of a wind speed monitoring and regulation function, guarantees the stability of the airflow, optimizes the structural design of an air inlet pipeline and an air outlet pipeline, and improves the detection precision. Airflow is guided to pass through stably through the structural design of the flow guide cavity, and turbulent flow is prevented, so that the detection accuracy and stability of the detector are ensured; a multi-stage filtering mode is adopted, the structural design of the light scattering cavity assembly is optimized, an interference signal shielding function is added, dust and impurities can be effectively prevented from entering the laser assembly, and the stability of background signals in an initial state is guaranteed; according to the invention, a pulse width signal modulation technology design is adopted, stable emission of a laser source is ensured, a tiny signal amplification analog circuit processing technology is adopted, collected tiny signals are amplified, interference in the environment can be filtered, and high-precision detection is realized.

The utility model discloses an operation platform with an adjusting function, which relates to the field of figure operation and comprises an automobile carrier, a motor is arranged in the automobile carrier, a lead screw is arranged at the output end of the motor, and a connecting frame is fixedly connected to the position, close to the motor, in the automobile carrier. A guide groove is formed in the inner wall of the connecting frame; the rocket rack has the advantages that the position of the rocket rack main body can be adjusted by matching the guide block and the moving plate with the motor and the lead screw, so that different use requirements can be met, and compared with a traditional adjusting mode, the novel adjusting mode not only reduces the working intensity of workers, but also improves the working efficiency. The time required for adjusting the position of the rocket frame is shortened, and it is ensured that the rocket launcher launches at the best time; the base can be supported through the connecting plate, the rotating plate, the supporting plate and the like, so that shaking caused when the figure rocket projectile is launched can be reduced, it is ensured that the figure rocket projectile can be launched stably, and meanwhile the launching precision can be improved.

The invention discloses a four-frequency-band laminated satellite navigation antenna, which is characterized in that firstly, microstrip antennas are respectively designed for S, B3, L and B2b frequency bands, and a feed mode and a perturbation structure are optimized to improve the performance; the S and B3 frequency bands and the B2b and the L frequency band respectively form a double-layer laminated structure, wherein the short circuit point design of the B3 frequency band antenna enhances the isolation from the S frequency band. And then, a strip line feed network layer is additionally arranged below the B3 and L frequency band antennas, so that high integration and compactness of the antenna are realized. And finally, all antennas are integrated with a feed network to form a complete four-frequency-band laminated antenna, and performance testing is carried out on the complete four-frequency-band laminated antenna. The antenna is compact and light in structure, excellent in performance of each frequency band, capable of working at the same time, high in isolation degree and particularly suitable for occasions with limited space and high performance requirements such as airborne satellite navigation, and the performance and reliability of the antenna are manifested.

The invention discloses an electromagnetic gun, and relates to the technical field of electromagnetic guns. The electromagnetic gun comprises a gun body and a safety management system, a handheld groove and a movable groove are formed in the outer wall of the gun body, a trigger is movably connected to the position, located at the movable groove, of the inner side of the gun body, a spring is hung on the outer wall of one side of the trigger, the other end of the spring is connected with the inner wall of the gun body, and an electromagnetic launching device is arranged in the gun body; the electromagnetic launching device comprises a mounting shell, a magnetic resistance type coil is fixedly connected to the inner wall of the mounting shell, a projectile launching opening is formed in the outer wall of the top of the mounting shell and the outer wall of the top of the gun body, and a stop hook is arranged on the inner wall of the mounting shell in a penetrating mode. The launching system is a core device of the whole electromagnetic automatic rifle, aiming at the technical development and maturity of various electromagnetic launching devices at present, the magnetic resistance type electromagnetic coil is selected as a driving coil of the launching system, the problems that a traditional gun is large in noise, high in recoil force and the like are solved, operation is easy, and use is convenient.

The invention relates to a lower bullet supply omnidirectional wheel infantry robot based on a Robomaster match, and relates to the technical field of robots. Comprising a chassis structure, a holder frame, a rotating structure and a launching structure, the launching structure comprises a launching mechanism, a lower ammunition supply mechanism and an ammunition storage mechanism, the ammunition storage mechanism and the lower ammunition supply mechanism are connected with the holder frame, and the launching mechanism communicates with the ammunition storage mechanism through the lower ammunition supply mechanism; the chassis structure comprises a frame and a wheel set mechanism, and the wheel set mechanism is mounted at the bottom of the frame; the wheel set mechanism comprises a damping system and an omnidirectional wheel set, the damping system comprises a parallelogram suspension and a shock absorber, and the parallelogram suspension is connected with the omnidirectional wheel set through a coupler, a thrust ball bearing and a gasket. The rotational inertia of the launching mechanism can be reduced through the lower ammunition feeding mechanism, and the control precision is improved; the launching mechanism can guarantee extremely high projectile launching precision; compared with a traditional robot wheel set, the omni-directional wheel set has higher speed and better trafficability.

The invention relates to the technical field of photoelectric functional polymer materials, in particular to a preparation method of a polyarylether phosphine oxide intrinsic type room-temperature phosphorescent material, which comprises the following steps: step 1, reacting a Grignard reagent 4-fluorophenyl magnesium bromide with phenyl phosphoric acid diacyl chloride, and performing column chromatography and recrystallization to obtain a polyarylether phosphine oxide intrinsic type room-temperature phosphorescent material; a di (4-fluorophenyl) phenyl phosphine oxide monomer is obtained; and 2, weighing the obtained di (4-fluorophenyl) phenylphosphine oxide and bisphenol monomers, dissolving the di (4-fluorophenyl) phenylphosphine oxide and bisphenol monomers in an organic solvent, adding a catalyst and a water-carrying agent, then heating to 140-160 DEG C, carrying out a stirring reaction and dehydration for 3 h, then heating to 190-200 DEG C, carrying out a polymerization reaction for 5 h, and then carrying out purification treatment to obtain the polyarylether phosphine oxide intrinsic room temperature phosphorescent material. The polymer material obtained by the invention has excellent mechanical properties, heat resistance, environmental resistance and longer phosphorescence emission life and service life.