143 results about "Ejection Seats" patented technology

Ejection seat systems include an ejection seat and a propellant assembly mounted to the ejection seat. A nozzle assembly having an adjustable nozzle is moveably attached to the ejection seat and configured to receive propellant exhaust from the propellant assembly and exhaust through the adjustable nozzle. A first linear electric actuator is operably connected to the adjustable nozzle and arranged to adjust an orientation of the adjustable nozzle in a first direction and a second linear electric actuator is operably connected to the adjustable nozzle and arranged to adjust an orientation of the adjustable nozzle in a second direction. The second direction includes a directional component that is normal to the first direction. A control module is configured to control operation of the first linear electric actuator and the second linear electric actuator.

The invention relates to the technical field of aircraft ejection seat detection, in particular to a detection test bed for an aircraft ejection seat and a test method thereof. According to the technical scheme, the device comprises a test external assembly, a test seat adjusting and clamping assembly is installed in the test external assembly, two seat clamping assemblies are installed on the two sides of the test seat adjusting and clamping assembly, and a changeable detection assembly is installed on the top of the inner wall of the test external assembly. The inclined rod drives the positioning type spring through the cross positioning plate to give push-pull force to the sensor connected with the positioning type spring to obtain X-axis data, then the inclined state of the aircraft ejection seat during ejection is recorded in more detail, then the posture problem of the aircraft ejection seat during ejection is comprehensively known in cooperation with the variable detection assembly, and the safety of the aircraft ejection seat is improved. Therefore, the accuracy of test data of the aircraft ejection seat is further improved, and problems occurring when the aircraft ejection seat is put into production are reduced.

The utility model relates to an explosion activation device, emergency ejection seat and aircraft, wherein the explosion activation device comprises a conductive shell and a power supply, the interior of the conductive shell is slidably connected with an actuator, the interior of the actuator is provided with a plunger cavity, the interior of the plunger cavity is slidably connected with a plunger, the actuator is slidably connected with a limiting ball, and the limiting ball is connected with the power supply. The actuator and the plunger are clamped or separated through a limiting ball, an insulating base is arranged on the conductive shell, an electric contact point is arranged on the insulating base, one end, close to the electric contact point, of the plunger is in contact with or separated from the electric contact point, and the conductive shell, the actuator, the limiting ball and the plunger are all conductive parts. The anode of the power supply is connected with the conductive shell, and the cathode of the power supply is connected with the electric contact. According to the explosion activation device, the activation function can be achieved only by pulling the actuator to change the connection state between the actuator and the plunger, and the structure of the explosion activation device is simplified.

The utility model discloses a standard knot rack assembling device which comprises a base plate, a left wall plate, a right wall plate, a connecting column, a rack positioning device, a standard knot tensioning device, a rack guide seat, a rack ejection seat, a rack jacking device, a standard knot pressing device and a standard knot disengaging device. A plurality of connecting columns are arranged between the left wall plate and the right wall plate, the left wall plate is provided with a rack ejecting device, a rack ejecting seat and a standard knot pressing device, and the right wall plate is provided with a rack guiding seat, a rack positioning device, a standard knot tensioning device and a standard knot disengaging device. Wherein the rack jacking device, the standard knot tensioning device, the standard knot pressing device and the standard knot disengaging device are all connected with a pushing electric cylinder. The device is high in positioning precision, rapid in installation, high in efficiency and simple in structure.

A method is disclosed herein. The method includes receiving, by a processor, an ejection command for ejecting an ejection seat from an aircraft; determining, by the processor, an airspeed and an altitude of the ejection seat; responsive to the altitude of the ejection seat indicating a second mode of operation, determining, by the processor, whether the airspeed of the ejection seat is at or above a first threshold and below a second threshold; and responsive to the airspeed of the ejection seat being at or above the first threshold and below the second threshold: sending, by the processor, a command to deploy a drogue parachute; and, responsive to a first predetermined time period expiring, sending, by the processor, a command to deploy a main parachute and sever the drogue parachute based on a variable drogue severance delay.

A method is disclosed herein. The method includes receiving, by a processor, an ejection command for ejecting an ejection seat from an aircraft; determining, by the processor, an equivalent airspeed and an equivalent altitude of the ejection seat; and, responsive to the airspeed and the altitude indicating a second mode of operation: sending, by the processor, a command to deploy a drogue parachute; determining, by the processor, a variable drogue severance delay; and responsive to the variable drogue severance delay expiring, sending, by the processor, a command to sever the drogue parachute and deploy a main parachute.

An ejection seat includes an ejection seat sequencing system. The sequencing system enables time delays to various components of the system, such the drogue parachute, the main parachute, and harness release cartridge. A sequence controller receives data for a parameter, such as airspeed, from at least two sensors. The sequence controller selects a sequence timing delay mode to implement the time delays for the components of the sequencing system. The sequence controller also accesses a lookup table in a database accessible by the sequence controller. The sequence controller uses a delay parameter of the lookup table to modify a time delay within the sequence timing delay mode, as configured by a user.

The utility model discloses a training simulation ejection seat capable of providing constraint simulation. The training simulation ejection seat comprises arm constraint simulation assemblies arranged on the two sides of an ejection seat body. The arm constraint simulation assembly comprises a shell, a first cavity is formed in the shell, a first cam is rotationally connected into the first cavity of the shell, a sliding rod is vertically arranged in a second cavity in the shell in a sliding mode, the sliding rod is located below the first cam, the first cam can push the sliding rod to move downwards when rotating to a set position, and a second cam is arranged below the sliding rod. When the sliding rod moves downwards, the sliding rod can impact the side face of the other end of the second cam, the second cam drives the arm limiting device to rotate, and the upper end of the arm limiting device moves downwards to restrain the arms of trainees. The seat can meet the simulated ejection requirement under the new situation.

The utility model provides an ejection seat regular inspection assembling clearance combination measuring tool, comprising a combination measuring tool used for measuring the installation spacing of a headrest umbrella box, the combination measuring tool comprises a measuring sample plate, the left and right sides of the measuring sample plate are respectively provided with an overturning member with a locking function, each overturning member is provided with a feeler gauge, and the feeler gauge is provided with a clamping groove. According to the utility model, one set of combined measuring tool can be used to measure the installation spacing of the two types of ejection seat headrest umbrella boxes and the installation gap of the hook-shaped lock, the measurement is more accurate, convenient, rapid and efficient, the carrying and storage are more convenient, the detection operation can be realized without the cooperation of a plurality of sets of detection tools, and the detection efficiency is improved. The detection process is greatly simplified, and the detection efficiency is improved.

The utility model relates to a kind of multi-station automatic transformation dress of ejection seat and adjust platform, including base, electric lifting rod, planetary reducer and servo motor located in the side of base, display screen mounting plate is set on electric lifting rod, setting on the control assembly of display screen mounting plate, lock hook is set in the end of ejection seat slide rail, and the connecting block is connected with ejection seat slide rail, turbine gland is installed in the outside of the contact gear of connecting block and servo motor.The utility model is realized by worm gear and speed reducer, the adjustment of angle is realized, and height adjustment is realized by cooperating lifting cylinder structure, the problem that personnel labor intensity is big, operation posture is not suitable, work efficiency is low due to the frequent change of position when multi-process implementation operation is solved, quality stability and reliability of ejection seat manufacturing and repair can be controlled, time is saved, work efficiency is improved, it can be applied to ejection seat production process, with good application prospect and remarkable economic benefits.

The utility model provides a restraint system for preventing upper limbs from being thrown under the action of airflow, which comprises an elbow guard, a lead, a central pull ring, an upper joint, a lower joint, a power supply, an ejection seat basin and a travel switch, and two ends of the elbow guard are electrically connected with the upper joint through the lead; the lower joint is fixedly connected with the ejection seat basin and is electrically connected with the power supply; one end of the central pull ring is a free end, the other end of the central pull ring is provided with a toggle travel switch structure, the upper connector is electrically connected with the lower connector, and when a pilot pulls the central pull ring, the travel switch is turned on and electrified, so that the artificial muscle wires arranged on the elbow guard contract under the action of current to generate tensioning force, and constraint is provided for the forearm and the upper arm of the pilot. The upper connector and the lower connector are plug-in type connectors, when the pilot separates the body from the chair, the upper connector and the lower connector are separated, the artificial muscle on the elbow guard loses the tensioning force, and the upper limbs of the pilot return to normal. The device is convenient to operate, and the influence of an active constraint mode on a pilot is reduced to the minimum.

The utility model relates to a mold opening multi-section linkage automobile front bumper injection mold which comprises a mold core plate with a forming surface and a mold cavity plate and further comprises a demolding mechanism, the demolding mechanism is used for demolding a bumper product, and the demolding mechanism comprises an ejection seat with a forming surface, a first driving assembly, a plurality of ejection blocks with forming surfaces and a second driving assembly. The ejection seat is connected to the core plate in a sliding mode, the ejection blocks are connected to the ejection seat in a sliding mode, the first driving assembly is used for driving the ejection seat to move, the second driving assembly is used for driving the ejection blocks to slide, and when the first driving assembly drives the ejection seat to move towards the side away from the core plate, the ejection blocks move along with the ejection seat. According to the invention, the product is reserved on the cavity plate, the possibility that the product falls out of the mold and is damaged in the mold opening process is reduced, the product is gradually separated from the mold core part of the mold through multi-section linkage mold opening, and compared with forced demolding of the product, the possibility that a buckle structure on the product is strained can be reduced.

The invention discloses an active separation device for a comprehensive helmet and an ejection seat during ejection lifesaving and a using method.The device comprises an anti-loosening connector, a lever clamping mechanism, an electric excitation type gunpowder gas mechanism and a socket fixing mechanism which are all fixed to the ejection seat, and a fulcrum of the lever clamping mechanism is connected with the socket fixing mechanism; the power end of the lever clamping mechanism is aligned with the electrical excitation type gunpowder gas mechanism, and the resistance end of the lever clamping mechanism corresponds to a spring self-locking mechanism on the anti-loosening connector; the socket of the anti-loose connector is fixed through the socket fixing mechanism; a pull-off steel cable is installed on the unlocking mechanism of the plug, and when the plug is inserted into the socket, the resistance end of the lever clamping mechanism is pressed between the plug and the socket by the unlocking mechanism of the plug and is fixed by the unlocking mechanism of the plug and cannot rotate freely. The success rate of ejection lifesaving in a complex lifesaving environment can be effectively increased.

The present invention relates to the field of automated testing technology and discloses an ejection seat test device and a test control system. The present invention, through the setting of the test control system, performs detection through static simulation testing and dynamic simulation testing respectively to obtain a fourth static pull-out force, a first static pull-out force, a second static pull-out force, a third static pull-out force, a second dynamic pull-out force, a third dynamic pull-out force, and a fourth dynamic pull-out force. Then, a pull-out force estimation module calculates a second predicted pull-out force, a third predicted pull-out force, and a fourth predicted pull-out force to determine whether a preset first pull-out threshold, a second pull-out threshold, and a third pull-out threshold are met under an actual target ejection speed. In addition, a simulation speed correction strategy is provided to determine whether a preset simulation speed meets the requirements. If not, an expanded simulation speed is generated, so that a curve simulation result is closer to reality and the test result is more accurate.

The application discloses a comprehensive helmet and active separation device of ejection seat in ejection rescue and a use method, the device comprises an anti-loose connector, a lever clamping mechanism, an electrically excited fire gas mechanism and a socket fixing mechanism, and the anti-loose connector, the lever clamping mechanism, the electrically excited fire gas mechanism and the socket fixing mechanism are fixed on the ejection seat; the fulcrum of the lever clamping mechanism is connected with the socket fixing mechanism; the power end of the lever clamping mechanism is aligned with the electrically excited fire gas mechanism; the resistance end of the lever clamping mechanism corresponds to the spring self-locking mechanism on the anti-loose connector of the anti-loose connector; the socket of the anti-loose connector is fixed through the socket fixing mechanism; a pull-off steel cable is installed on the unlocking mechanism of the plug; when the plug is inserted into the socket, the resistance end of the lever clamping mechanism is pressed into the space between the plug and the socket by the unlocking mechanism of the plug and is fixed by the unlocking mechanism of the plug and cannot rotate freely. The application can effectively improve the success rate of ejection rescue in a complex rescue environment.

The application discloses a rocket ejection seat control method and system under an inertial navigation fault working condition, a program controller receives and processes data of PIU1 and PIU2, an overload sensing device and a pressure altitude sensor in real time, when chair-mounted inertial navigation communication fails or data is unavailable, the program controller adopts data in the PIU1 to perform mode determination and uses data collected by the pressure altitude sensor to complete remaining height control, when the PIU1 data is abnormal, the program controller adopts data in the PIU2 to perform mode determination and uses data collected by the pressure altitude sensor to complete remaining height control, when the PIU2 data is abnormal, the program controller uses data collected by the overload sensing device to perform mode determination and uses data collected by the pressure altitude sensor to complete remaining height control, and when the overload sensing device is abnormal, the program controller performs fixed delay time control. The application guarantees lifesaving performance of the ejection seat under the inertial navigation fault mode, and improves reliability and safety of rocket ejection lifesaving.

The application relates to a device and method for improving the opening reliability of a rescue parachute of an ejection seat, and relates to the field of air dropping. The device for improving the opening reliability of the rescue parachute of the ejection seat comprises a rescue parachute box and a deceleration parachute box which are installed on the ejection seat and are connected with each other, the deceleration parachute box is configured to be separable from the rescue parachute box, the rescue parachute box is internally provided with a rescue parachute, the deceleration parachute box is internally provided with a connecting belt, a deceleration parachute and a constant force breaking rope, one end of the connecting belt is connected with a parachute rope of the deceleration parachute, the other end of the connecting belt is connected with the top of the rescue parachute box, one end of the constant force breaking rope is connected with the top of a canopy of the deceleration parachute, the other end of the constant force breaking rope is connected with the top of the deceleration parachute box. The device and method for improving the opening reliability of the rescue parachute of the ejection seat solve the bending phenomenon of the parachute rope and the canopy during the high-speed ejection of the ejection seat, avoid the problems of early inflation of the rescue parachute, serious damage and local parachute turning, avoid the safety hazards caused by the interference after the separation of the parachute box and the rescue parachute, and improve the high-speed working reliability of the rescue parachute matched with the ejection seat.

The utility model relates to the technical field of metal hoses, and discloses a metal hose for an ejection seat, which comprises a corrugated pipe and a first connecting pipe, straight edge sections are fixed at two ends of the corrugated pipe, a connecting sleeve is fixedly connected outside the left side of the first connecting pipe, bushing rings are arranged outside the straight edge sections, and the bushing rings are fixedly connected with the connecting sleeve. A first mounting sleeve is fixedly connected to the right side of the first connecting pipe, four limiting columns are fixedly connected to the outer side of the first mounting sleeve, sealing rings are arranged outside the limiting columns, a second connecting pipe is arranged on the right side of the first connecting pipe, and a second mounting sleeve is connected to a fixing rod on the left side of the second connecting pipe; and sealing sleeves are arranged outside the upper ends and the lower ends of the first mounting sleeve and the second mounting sleeve correspondingly, and connecting blocks are fixedly connected to the two sides of the two sealing sleeves correspondingly. According to the sealing device, the first mounting sleeve, the second connecting sleeve, the sealing sleeves, the limiting clamping blocks, the pull rod, the spring, the supporting plate and the limiting plate work in a matched mode, the two sealing sleeves can be conveniently and rapidly fixed through the cooperation of the disassembling assembly and the limiting clamping blocks, and rapid disassembling is facilitated.

The invention discloses an air bag assembly used for restraining and protecting the head and the neck and an ejection seat, the air bag assembly used for restraining and protecting the head and the neck comprises a headrest plate, two neck restraining devices and a head buffering device, the two neck restraining devices and the head buffering device are arranged on the headrest plate, and the headrest plate is used for being arranged on a seat backrest. The neck restraining devices are located on the two sides of the neck of the human body on the seat, and the head buffering device is located above the head of the human body on the seat. While the requirements for reliable structure, quick response and high adaptability are met, strong constraining force and a high energy absorption effect are actively provided for the head of a pilot, and the injury risk of the head and the neck is reduced.

The invention discloses a design method of an ejection seat waist rest with a waist supporting function, which is characterized in that rib supports are designed on two side wings of the waist rest so as to support ribs during use; according to the waist shape of a pilot on the ejection seat and the specific structure of the ejection seat, several key size parameters influencing the supporting performance and comfort of the waist are selected, and the basic configuration of the waist rest is obtained. By means of the method, it is ensured that the ejection seat waist rest can provide enough supporting and comfort when used in the long endurance process, and the rib part can be supported.

The utility model discloses a casting mould convenient for ejection of a casting, which comprises an upper module, a lower module and an ejection mechanism, the upper module is arranged above the lower module, and the ejection mechanism is arranged below the lower module and extends into the lower module; the upper die set comprises an upper die closing plate and a cover plate, the lower die set comprises a lower die closing plate and a bottom plate, the lower die closing plate is arranged at the top of the bottom plate, the ejection mechanism comprises a supporting seat, an ejection seat and an ejection rod, the two sides of the lower die closing plate and the two sides of the bottom plate are each provided with a through ejection groove, the bottom of the ejection rod is fixed to the ejection seat, and the ejection groove is communicated with the supporting seat. And the top is movably arranged in the ejection groove. According to the casting mold, the ejection seat and the ejection rod in the ejection mechanism are matched with each other, so that the ejection rod can move upwards along the ejection groove to eject a casting out of the casting cavity, the casting does not need to be pried by a tool, and the casting taking efficiency is improved while the casting quality is ensured.

The safety seat specification cover injection mold comprises an upper mold body and a lower mold body, the upper mold body comprises an upper fixing plate, a hot runner plate, a first top plate, a second top plate, two mold feet and a fixed mold plate, the first top plate and the second top plate are connected with each other, and the fixed mold plate is connected with a plurality of forming blocks used for forming assembly grooves in a sliding mode. A plurality of inclined ejection seats are arranged on the first ejection plate, inclined guide rods are arranged on the inclined ejection seats, the inclined guide rods penetrate through the second ejection plate, extend into the fixed mold plate and are connected with the forming block, and a driving part used for driving the first ejection plate to move is further arranged on the fixed mold plate; a plurality of forming rods are arranged on the hot runner plate, penetrate through the first top plate and the second top plate and extend into the fixed mold plate, forming cavities used for forming the assembly columns are formed between the forming rods and the fixed mold plate, and the forming blocks are located on the sides, away from the upper fixing plate, of the forming rods correspondingly. While the product is molded and demolded, the gram weight of the product is reduced, and the effect of saving materials is achieved.

The utility model relates to the technical field of respirator production, in particular to a respirator shell mold which comprises a bottom plate, an ejection assembly, a lower mold base, an upper mold base, an ejection plate and a lower mold core, and the top face of the upper mold core and the top face of the lower mold base are provided with a first sliding forming mechanism, a second sliding forming mechanism and a third sliding forming mechanism around the lower mold core. The lower mold core is connected with a pitched roof forming mechanism, the pitched roof forming mechanism comprises a pitched roof piece connected with the lower mold core and a pitched roof seat connected with the ejection assembly, a pitched roof rod is arranged at the bottom of the pitched roof piece, and the pitched roof rod penetrates through the lower mold seat and is connected to the pitched roof seat. The forming cavity is defined by the first sliding forming mechanism, the second sliding forming mechanism, the upper mold core, the lower mold core and the pitched roof forming mechanism, rapid forming of the respirator shell is achieved, in addition, after a product is cured and formed, the pitched roof part ejects the product out and separates the product from the product at the same time during mold opening, the respirator shell is rapidly demolded, and the production efficiency is improved. Therefore, rapid batch production of products is realized.

The invention discloses a control method and system during low-altitude low-speed flat-flying ejection of a rocket ejection seat, and the method comprises the steps: predicting the future posture change trend of the seat and the pitching posture adjustment capability of a rocket engine through analyzing the real-time posture data of the seat under the low-altitude low-speed flat-flying ejection working condition of the seat; if it is judged that the rocket engine can meet the posture correction in the pitching direction, parachute shooting is controlled after the rocket engine finishes working, and if it is judged that the rocket engine cannot meet the posture correction in the pitching direction, parachute shooting safety can be affected, parachute shooting is controlled in advance under the conditions that the rocket engine does not finish working and the posture of a seat meets safe parachute shooting; therefore, the parachute shooting direction is prevented from being in front of the movement of the seat after the rocket engine finishes working, and the continuous head lowering effect of the seat is restrained by the head raising torque generated by deceleration of the escape parachute. The phenomenon that people catch up the umbrella can be avoided under the working condition of low-altitude low-speed flat-flying ejection, and the device can adapt to passengers with different weights.

The invention belongs to the field of digital pressure sensor design, and particularly relates to a split type multi-redundancy air pressure height sensor for an ejection seat. An existing air pressure height sensor product cannot meet the use requirement of an ejection seat. The device comprises a redundancy pressure sensitive assembly and a signal conditioning module which are spatially isolated, the redundancy pressure sensitive assembly and the signal conditioning module are connected through a cable and an electric connector, the redundancy pressure sensitive assembly comprises a filler neck, a sintering base, a conversion plate and an outer sleeve which are sequentially connected and installed, and a plurality of packaged pressure sensors are arranged in the filler neck. The air pressure height measurement function in the flight process of an aircraft and after ejection of a seat can be completed, meanwhile, the requirement for quick response is met by adopting a hardware and software collaborative design mode, and the requirements for impact resistance, high temperature resistance and easy installation of the sensor are met by adopting the split design of the multi-redundancy pressure sensor and the sensor signal conditioning module.