95 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 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 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 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 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 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 application belongs to the field of ejection seat design and relates to a laser command system and a control method for a side-by-side ejection cover, which comprises an ejection seat, a cover throwing device and a laser command system; the ejection seat comprises a left ejection seat and a right ejection seat, the cover throwing device comprises a cover throwing device and a pressure relief port cutting device; the laser command system comprises a command system controller, a laser energy-gathering detonation device, an ejection seat igniter and a laser reflection device; the command system controller is electrically connected with the laser energy-gathering detonation device, the ejection seat igniter, the laser reflection device and a fiber microswitch; and the laser energy-gathering detonation device is electrically connected with the cover throwing device. When the cover is thrown, the laser reflection device and the fiber microswitch send signals to the command system controller; after the command system controller judges that the laser reflection device and the fiber microswitch have both sensed that the cabin cover has been thrown away, the right ejection seat and the left ejection seat are controlled to be thrown away in sequence, so that the control stability is ensured.

The application discloses a lifesaving radio starting mode conversion device, which comprises a sliding sheet, a constant force connecting rope, a sliding groove sheet and a gasket layer which are connected together and arranged on both sides of the sliding sheet, a through hole on the sliding groove sheet and a through hole on the gasket layer form a channel for the constant force connecting rope to pass through, the sliding sheet can slide a distance relative to the sliding groove sheet and the gasket layer when the sliding sheet is pushed and pulled, one end of the constant force connecting rope is connected with a lifesaving radio starting pull pin, and the other end of the constant force connecting rope is connected with a seat, the constant force connecting rope is provided with a safety device and a steel ball, the sliding of the sliding sheet makes different parts of the special-shaped hole appear in the channel for the constant force connecting rope to pass through, so that the steel ball can pass through the channel or be blocked by the special-shaped hole, and the gasket layer is connected with a lifesaving bag. The application can be applied to lifesaving bags of multiple models of rocket ejection seats, has good applicability and is simple to operate.

The application discloses a mobile phone protective sleeve main body and key two-color LSR forming die, which comprises an upper die, a lower die, a slider structure and an ejection mechanism, wherein the slider structure comprises a slider body, a slider insert, an inclined guide column and a slider block, the slider insert is arranged on the slider body, the slider insert is provided with an insertion end and a connecting end, the insertion end is provided with a containing groove for arranging the key, and the connecting end is hinged to the slider body; the ejection mechanism comprises a ejector pin plate, an ejection seat and an ejector rod, the top of the ejection seat is provided with a sliding groove, the bottom of the ejector rod is transversely movably arranged in the sliding groove; the top of the ejector rod is provided with a guide rod, the slider insert is provided with a transverse guide groove, and the ejection mechanism drives the slider insert to turn up and down through the vertical movement of the ejector rod. The arrangement that the ejector rod and the connecting end are hinged to the slider body realizes automatic turning of the slider insert, the structure design is ingenious, the key feeding is convenient, and the production efficiency of the mobile phone protective sleeve is improved.

The present application belongs to the field of aviation, and is a method for controlling the opening of an ejection seat. A departure coordinate system is established for the motion trajectory of the ejection seat after leaving the aircraft. After the ejection seat leaves the aircraft, a motion trajectory of the ejection seat after leaving the aircraft is established according to the departure coordinate system. Then the ejection seat obtains the terrain contour information of the current area, and the opening contour of the current area is determined in combination with the opening height of the survival parachute. The calculation method is simple, and the opening height can be adjusted in time according to the different altitudes of the landing altitude in the current area. When the landing altitude is high, the opening time of the parachute is earlier, and when the landing altitude is low, the opening time of the parachute is later, thereby effectively preventing the parachute from opening too early and causing a long time in the air.

The present invention discloses a delay control method for a rocket ejection seat program controller, comprising the following steps: after the rocket ejection seat is activated, an excitation mechanism activates the self-powered module of the program controller, and the program controller is powered on; the program controller is initialized, first reading the seat activation signal status and the last self-test flag; determining whether the last self-test status is normal; if the last self-test status is normal, performing a normal state key item self-test; if abnormal, re-energizing the self-test until the power-on self-test is normal; if the normal state key item self-test passes, determining whether there is a seat activation signal; if a seat activation signal is found, entering an altitude-based delay control mode; if no seat activation signal is found, entering a periodic self-test and monitoring the seat activation signal; if the normal state key item self-test is abnormal, or the periodic self-test is abnormal, setting the self-test flag to be abnormal, and entering error processing; repeating until the periodic self-test passes, and entering the normal delay control mode. This improves the overall life-saving performance of the rocket ejection.

A seat pan 104 adjustment system 120, for an ejection seat, has a controller 170 configured to send a series of in-flight actuation commands to a first actuator 1221 which adjusts the position of a fi

The present invention relates to the technical field of drones, and provides a pneumatically assisted ejection device for a drone, comprising: a base and an ejection seat, wherein the ejection seat is arranged above the base, and a rotating rod is movably embedded in the center of the top of the base. The present invention starts a motor so that its output shaft drives the worm to rotate, and then, under the interaction of the worm and the worm wheel, the rotating rod can be rotated, synchronously driving the disc to rotate, so that the support ring can easily rotate inside the annular groove with the assistance of the ball, thereby enabling the drone to be ejected 360 degrees in the horizontal direction, and synchronously starting an electric push rod so that it drives a U-shaped block 1 to push a round rod 1 to move inside a slide groove 1, and then, under the mutual cooperation of the round rod 1, the connecting plate and the round rod 2, the support plate can be rotated upward or downward around the fixed rod, thereby achieving the adjustment of the tilt angle of the drone ejection, thereby facilitating the adjustment of the azimuth angle of the drone ejection, and thus facilitating the use of the operator.

A control system to control ejection of an ejection seat includes a sensor configured to measure ejection environment parameters at time of ejection from an aircraft and a controller in signal communication with the sensor. The controller receives the ejection environment parameters and stores an ejection sequence operable according to a plurality of different ejection sequence modes. The controller determines a weight of an occupant seated in the ejection seat and a target ejection sequence mode among the plurality of different ejection sequence modes based on the ejection environment parameters and the weight of the occupant. The controller executes the ejection sequence according to the target ejection sequence mode to eject the ejection seat and safely recover the occupant.

An ejection seat 14 comprise a seatback 30, a headrest 42 located at an upper end of the seatback, and a pitot tube 102 rotatably coupled to the headrest. A pitot restraint assembly may be operably co

The invention provides a head and neck protection device for an aircraft ejection seat, and belongs to the field of flight protection. Comprising a protective helmet, a connecting rope is fixedly connected to the top end of the protective helmet, an arc-shaped fixing block is fixedly connected to the outer surface of the protective helmet, a T-shaped plate is arranged at the lower end of the arc-shaped fixing block, connecting blocks are symmetrically and slidably connected to the front end of the T-shaped plate, and protective plates are fixedly connected to the front ends of the two connecting blocks. The arc-shaped fixing block is provided with a first adjusting assembly used for adjusting the height of the protection plate. The rotating assembly drives the threaded rod to rotate, under the action of threads of the threaded rod, the threaded rod drives the T-shaped plate to slide in the first L-shaped plate in the length direction of the limiting rod, the T-shaped plate drives the connecting block and the protection plate to slide, the protection plate is adjusted to the height suitable for the neck of a pilot, and the protection device can adapt to the neck heights of different pilots conveniently; and the fitting of the protection plate and the neck of the pilot and the comfort of the pilot in the flight process are improved.