91 results about "Pyrotechnics" patented technology

The invention discloses an initiating explosive device processing safety assessment and early warning method based on a Noisy-OR Bayesian network. According to the method, a Noisy-OR model and a Bayesian network are combined, and an initiating explosive device processing process safety evaluation model is constructed. According to the method, a Noisy-OR model can be used for carrying out quantitative processing on expert evaluation information endowed with weight, a corresponding CPT (conditional probability table) is generated, and the risk probability of the initiating explosive device processing process is generated through a Bayesian network by combining real-time monitoring data of a dangerous point and simulation data of an initiating explosive device processing finite element model through a multi-source information fusion method. According to the method, subjectivity of traditional initiating explosive device processing safety evaluation and singleness of a safety monitoring method are avoided, the Noisy-OR model and the Bayesian network are fused and applied to the field of initiating explosive device processing safety monitoring, the problems that safety evaluation is not objective and not real-time, and the monitoring method is local are solved, and the safety of initiating explosive device processing is improved. The method has a practical guiding significance for monitoring the actual processing safety of the initiating explosive device.

The invention relates to a life evaluation method suitable for an initiating explosive material in a temperature and pressure dual-stress environment, and belongs to the technical field of initiating explosive devices. According to the method, by establishing the temperature and pressure dual-stress accelerated aging test method for the initiating explosive material, a mathematical model adaptation method is adopted to research the performance degradation law of the initiating explosive material in the temperature and pressure environment, and a pre-estimation model of the storage life in the temperature and pressure environment is established; the storage life data of the initiating explosive material in the temperature and pressure environment is obtained, the reliability analysis of the initiating explosive material in the temperature and pressure dual-stress environment is more comprehensive and accurate, and the method is suitable for the reliability analysis of various initiating explosive materials in the temperature and pressure dual-stress environment; and corresponding data basis and theoretical basis are provided for storage environment requirements and working reliability of initiating explosive devices.

An initiating explosive device curing oven automatic feeding and discharging system comprises an oven, a skip car, an AGV trolley and a control system. A positioning tool for positioning the skip car is arranged at the bottom of the inner cavity of the oven; one side of the skip car is provided with at least one group of handles; a positioning plate matched with the positioning tool for positioning is arranged at the bottom of the skip car; the AGV trolley is provided with a navigation positioning unit and a hanging frame capable of translating and lifting along with the driving mechanism, the navigation positioning unit is used for positioning and determining the positions of the skip car, the drying oven and the AGV trolley and attitude information of the AGV trolley, and one side of the hanging frame is provided with hanging teeth capable of hooking a handle; the control system is used for sending a control instruction according to the starting instruction and the position and posture information returned by the navigation positioning unit, and controlling the moving track of the AGV and opening and closing of a drying oven door of the drying oven. For a production site of an initiating explosive device dangerous area, due to unmanned and automatic whole process, the man-machine isolation safety operation of a high-safety-risk working procedure of charging and discharging of the skip car is realized, the intrinsic safety of the process is improved, the safety risk is reduced, and the production efficiency is improved.

The utility model discloses a kind of micro high-output capacity's insensitive electric ignition tube, belong to the technical field of pyrotechnics, including shell (1), in the shell (1) from below to above sequentially provided with insulating sheet (8), electrostatic discharge ring (7) and electrode plug (6), the two pins (61) of the electrode plug (6) from the lower end of shell (1) stretch out shell (1) outside, the upper end surface of the electrode plug (6) is provided with bridge wire (5), the bridge wire (5) is communicated with two pins (61), the upper end surface of electrode plug (6) is provided with charge ring (4), in the charge ring (4) is provided with ignition powder (3), in the upper end surface of the ignition powder (3) is provided with cover sheet (2);The utility model makes the insensitive scheme that satisfies in GJB344A-2020 under the size frame as small as possible, simultaneously has enough big output capacity.

The utility model discloses an electronic detonator initiator, and belongs to the technical field of initiating explosive device initiation control equipment. The electronic detonator exploder comprises an exploder body; the detonation control module is arranged in the detonator body; one end, close to the exploder body, of each conductive connecting seat is connected to the exploder body and is in conductive connection with the detonation control module, and one end, away from the exploder body, of each conductive connecting seat is provided with a conductive plugging port for plugging a conductive wire; and the locking mechanism is arranged on the conductive connecting seat, the locking mechanism can lock the conductive wire inserted in the conductive plugging port, and the conductive wire locked in the conductive plugging port is conductively connected with the detonation control module. According to the utility model, one end, deviating from the exploder body, of the conductive connecting seat is provided with the conductive plugging port for plugging the conductive wire, so that the conductive wire serving as a control bus can be plugged in the conductive plugging port conveniently, and the conductive wire can be rapidly and reliably connected.

The utility model relates to the field of initiating explosive devices, and discloses an underwater pin pulling device which comprises a shell, a fixing pin, a piston, a lock cover, a buffering sleeve, first sealing rings, an exploder and a one-way sealing assembly, the cross section of the piston is arranged in a shape like a Chinese character'zhong 'and is connected in an inner cavity of the shell in a sliding mode, and the peripheral side of the piston is sleeved with the first sealing rings; the working end of the fixing pin is connected with the piston in an inserted mode, two air guide channels are reserved in the piston, the exploder is in threaded connection to the bottoms of the air guide channels, the one-way sealing assembly is in threaded connection to the tops of the air guide channels, the small-diameter end of the bottom of the piston is sleeved with the buffering sleeve, and the outer wall of the buffering sleeve is arranged in a taper angle mode. The lock cover is in threaded connection with the opening end of the bottom of the shell, a circular-truncated-cone-shaped groove is formed in the lock cover, and the large-diameter size of the circular-truncated-cone-shaped groove is matched with the small-diameter size of the buffering sleeve. The waterproof performance of the device is effectively improved, and meanwhile, the stable operation of the device is ensured by adopting the arrangement of the double exploders.

The invention discloses a collision testing device, system and method for testing an energy storage element of an electronic detonator, and belongs to the technical field of initiating explosive device testing. The collision test device comprises a support frame; the rotary driving device is mounted on the supporting frame, and a rotary driving shaft is arranged on the rotary driving device; a rotary connecting part connected with the rotary driving shaft is arranged in the middle of the rotary frame, the rotary frame can be driven by the rotary driving shaft connected with the rotary connecting part to rotate, and after the rotary driving device stops driving, the rotary connecting part is connected with the rotary connecting part; the rotating frame can continuously rotate based on the inertia of the rotating motion until the rotating motion is stopped under the action of resistance; the clamping mechanism is mounted on the rotating frame, and a clamping mounting part for mounting and clamping an electronic detonator sample is arranged on the clamping mechanism; and the balancing weight is mounted on the rotating frame and is used for balancing the total weight of the clamping mechanism and the electronic detonator sample. The collision test device disclosed by the invention is beneficial to improving the accuracy of a collision test result.

The invention relates to an on-line self-adaptive health detection system and method for initiating explosive devices of an agile aircraft, and belongs to the technical field of on-line detection of spaceflight electronic systems. Comprising a constant current source, an integrated computing power center, a reusable detection link and an ignition loop, wherein the integrated computing power center comprises a sequential logic control algorithm module and a data estimation module; the reusable detection link comprises an analog switch 1, an isolation optocoupler, a multi-choice analog switch, a voltage following module, an isolation operational amplifier module, a differential operational amplifier module and an AD acquisition module; the ignition loop comprises an initiating explosive device to be detected; according to the invention, the problems of poor precision, complex hardware, low test efficiency and the like of a traditional single-path voltage measurement method are solved, and the test coverage, safety and application reliability of the agile aircraft are improved.

The invention relates to the technical field of automatic assembly of initiating explosive device medicament equipment, and discloses a device and method for automatically rolling and assembling a copper removal agent in a combustible cartridge case with the large length-diameter ratio, the device comprises a supporting frame, the supporting frame is placed on the ground and used for placing other mechanisms, and a copper removal agent feeding mechanism is arranged on the supporting frame; the winding and shearing module workbench and the assembly executing mechanism are arranged on the upper layer of the supporting frame; the taking and placing clamping mechanism and the feeding and discharging mechanism are arranged on the lower layer of the supporting frame; by integrating the five core advantages of rapid feeding and discharging, high-precision automatic winding and shearing, automatic assembling, coaxial conveying and automatic disassembling and assembling and aiming at the characteristics that the length-diameter ratio of the large-length-diameter-ratio combustible cartridge is too large, the pipe wall is prone to deformation, and the structure is prone to damage, coaxial positioning operation and flexible process installation are adopted, full-process automation of winding and assembling is achieved, and the production efficiency is improved. The problems of poor manual operation consistency, uncontrollable quality, low efficiency, insufficient safety protection and the like in the prior art are solved.

The utility model belongs to the technical field of automatic box opening machinery, and particularly relates to an automatic opening and closing cover and multi-box-cover temporary storage device. Comprising a cover opening and closing transfer assembly, a multi-box-cover temporary storage assembly and a carrying table. The cover opening and closing transfer assembly comprises a cover opening and closing device, a multidirectional transfer device and a fixed rack, the fixed rack stretches across the multi-box-cover temporary storage assembly and the carrying table, the multidirectional transfer device carries the cover opening and closing device with the fixed rack as a support to move between the multi-box-cover temporary storage assembly and the carrying table, and the cover opening and closing device comprises a pneumatic suction cup and a pneumatic finger. A self-locking buckle of the turnover box is triggered through a pneumatic finger, and a box cover of the turnover box is grabbed through a pneumatic suction cup; according to the automatic cover opening and closing and multi-box-cover temporary storage equipment, the problem of positioning consistency of a plurality of turnover boxes in the transferring and cover opening and closing process is solved; the automatic cover opening and closing operation of the initiating explosive device turnover box is achieved, and potential safety hazards existing in the cover opening and closing operation are reduced.

The utility model discloses a solid-state low-power-consumption high-precision insulation resistance test circuit which comprises a high-voltage access circuit, a voltage acquisition and amplification circuit, an A / D converter, an embedded microprocessor and an RS485 bus interface module, the high-voltage access circuit is provided with a high-voltage optocoupler circuit, the voltage acquisition and amplification circuit is connected with a loop to be tested, and the A / D converter is connected with the embedded microprocessor. The A / D converter is connected with the voltage acquisition and amplification circuit, the embedded microprocessor is connected with the A / D converter and the high-voltage access circuit, and the RS485 bus interface module is connected to the embedded microprocessor through the signal isolation driver. According to the utility model, the high-voltage optocoupler circuit is designed to replace a conventional mechanical relay, so that faults caused by contact abrasion or damage can be reduced, and the test reliability of the initiating explosive device is improved; meanwhile, the on time and the off time of the high-voltage optocoupler circuit are stable, a high-voltage source can be quickly and timely disconnected, time out-of-tolerance is avoided, and the state change of the insulation resistor can be timely and effectively detected, so that the performance test requirement of the insulation resistor is met.

The present application relates to a kind of stable preparation method of type II basic lead stephanate, belong to detonating explosive, firing charge, pyrotechnics, energetic material technical field.The method described in the present application is prepared by changing reaction raw materials, optimizing synthesis process and hydrothermal reaction, to obtain type II B-LTNR product.The method avoids the generation of type I acicular B-LTNR, not only improves the physical and chemical stability of B-LTNR, reduces mechanical sensitivity, but also significantly improves its dispersibility, mixing and packing density and other application performance.Using the method can ensure the quality and application reliability of the obtained type II B-LTNR product, the obtained product has good flowability, good crystal shape consistency, high yield and other characteristics, and the process is simple and easy to operate, high safety, suitable for industrial production, has good application prospect in detonating explosive, firing charge, pyrotechnics, energetic material and other related technical fields.

This invention provides a multifunctional, highly integrated power control and distribution internal bus system architecture, comprising: a set of DIST internal buses, with the master station located in the telemetry and remote control module, and substations distributed in various functional modules, including at least one LVDS internal bus substation; a set of CRST internal buses, with both master and slave stations located in the telemetry and remote control module, used to send charging and discharging parameter setting commands to the charging and discharging regulation module; multiple sets of internal bus extension interfaces located in the pyrotechnics and thermal control modules, used to transmit address, command enable, and pulse trigger signals, wherein the pulse trigger signal is output by the LVDS substation in the shunt regulation module, and the command enable signal is issued by the master station; and a set of motherboards to interconnect the above buses. The DIST internal bus, CRST internal bus, and internal bus extension interfaces adopt a unified timing to achieve synchronous data sampling and uploading. This invention improves the system's scalability and compatibility by being compatible with highly integrated LVDS substations and discrete hardware extension interface substations, and ensures the real-time performance of telemetry data.

The utility model discloses an initiating explosive device hammering test device, which relates to the technical field of initiating explosive device hammering tests and comprises a bottom plate, two side plates are symmetrically welded on the bottom plate, a motor is mounted on the bottom plate through bolts, a rotating shaft and a mounting shaft are rotatably connected between the two side plates, a first synchronous pulley is arranged at the output end of the motor, and a second synchronous pulley is arranged at the output end of the motor. A first synchronous belt wheel is arranged on the mounting shaft, a rotating shaft is arranged on the mounting shaft, a second synchronous belt wheel is arranged on the rotating shaft, the first synchronous belt wheel and the second synchronous belt wheel are in transmission connection through a cog belt, a cam is arranged on the rotating shaft and is crescent, a hammer arm is arranged on the mounting shaft, and a hammer head is fixed at the front end of the hammer arm through a bolt. According to the utility model, by controlling the rotating speed of the motor, adjusting the pressure of the compression cylinder and replacing different hammers according to specific use requirements, the requirements of a large-scale hammering test that the hammering frequency is 30-80 times / min and the maximum hammering acceleration is less than or equal to 100000g can be met.

The present invention belongs to the field of pyrotechnics, and specifically relates to a discharge unit based on a series-connected gas discharge tube high-voltage pulse power switch. The unit comprises a series-connected gas discharge tube high-voltage pulse power switch, a printed circuit board (PCB), an integrated exploding foil initiator, and a pulse power capacitor; the series-connected gas discharge tube high-voltage pulse power switch, the integrated exploding foil initiator, and the pulse power capacitor are integrated in series on the PCB. The present invention utilizes technologically mature and inexpensive discharge tubes in series to create a pulse power switch, which is then applied to the pulse power field. This reduces the cost of the pulse power switch. Furthermore, by integrating the switch, exploding foil initiator, and high-voltage pulse capacitor on the PCB, the discharge circuit is shortened and energy efficiency is improved.

The invention relates to an initiating explosive device grounding state monitoring device and method, and belongs to the technical field of initiating explosive device safety monitoring, and the device comprises N * M measurement and control combinations, N sets of measurement and control combinations and a set of main control computer, the measurement and control combination and the arrangement in a dangerous area for storing the initiating explosive devices adopt explosion-proof design, and the main control computer is arranged in a management area outside the dangerous area without adopting the explosion-proof design; each set of measurement and control combination is connected with M sets of measurement and control combinations, and the N sets of measurement and control combinations are connected to the main control computer; connecting the initiating explosive device to the corresponding measurement and control combination; the measurement and control combination obtains an in-place state by performing in-place monitoring on the initiating explosive device, and performs a grounding resistance test on the in-place initiating explosive device to obtain a grounding state signal; and the main control computer manages and controls the N sets of measurement and control combinations, receives and displays the in-place and grounding states of the initiating explosive device, judges a grounding fault and gives an alarm. The initiating explosive device safety management system has remarkable advantages in the aspect of improving the efficiency and safety of initiating explosive device safety management.

The invention relates to a method for passivating a magnesium material, comprising the step of coating the magnesium material with urea, where the magnesium material is magnesium, a magnesium alloy containing at least 50% by weight of magnesium, or a mixture of magnesium and one or more such magnesium alloys, and where the coating is carried out by mixing the magnesium material with urea particles. The invention further relates to a passivated magnesium material, in particular magnesium in the form of particles of a magnesium material, which are coated with a coating containing urea or consisting of urea, which can be obtained by said method, the invention also relates to the use of the passivated magnesium material for producing pyrotechnic, coated welding electrodes, refractory products, cored wires or desulfurizers for the desulfurization of pig iron and / or steel.

The utility model discloses a circuit substrate structure as well as an electronic detonator control module and an electronic detonator comprising the circuit substrate structure, and belongs to the technical field of initiating explosive devices. The circuit substrate structure comprises a body, the body is of a long-plate-shaped structure, the body is provided with a containing through groove used for containing an energy storage capacitor, the containing through groove extends in the length direction of the body, the body forms a wide-edge bridge on one side of the containing through groove in the width direction, and the body forms a narrow-edge bridge on the other side of the containing through groove in the width direction. The narrow-side bridge is arranged right opposite to the wide-side bridge, the width size of the wide-side bridge is larger than that of the narrow-side bridge, and when the energy storage capacitor is placed in the placing through groove, the energy storage capacitor is located on the inner side of the placing through groove in the horizontal direction. According to the utility model, the body forms the wide-side bridge at one side of the placement through groove, and the distance between the conductive circuit arranged on the wide-side bridge at one side of the placement through groove and the energy storage capacitor is increased, so that the size of the energy storage capacitor protruding out of the body is reduced, and the reliability and stability of the energy storage capacitor are improved.

The utility model relates to a kind of pyrotechnics grain column quantitative dosing equipment, comprising: shell and self-adapting material guide plate mechanism;Self-adapting material guide plate mechanism is set to the top of the shell, and extend to the inside of the shell.The utility model is by setting shell and self-adapting material guide plate mechanism etc., by the mutual cooperation between the shell and self-adapting material guide plate mechanism of separation type setting, so that self-adapting material guide plate mechanism can be separated from shell simultaneously, so that self-adapting material guide plate mechanism inclination angle can be adjusted, and then the effect of increasing feeder application range is realized, by the setting of self-adapting material guide plate mechanism, the effect of self-adapting is realized, so that the side of self-adapting material guide plate mechanism is still closely attached to the inner side wall of trough after the angle of self-adapting material guide plate mechanism changes, and then the powder can be contacted with self-adapting material guide plate mechanism and then guided material operation.

The utility model discloses a kind of dismounting and connecting device for waterborne electronic detonator driver and waterborne electronic detonator initiation control system belong to pyrotechnics initiation control technical field.The bottom of waterborne electronic detonator driver is equipped with stop bump for installation by stop limit, stop bump is protruded to outside relative to the bottom of waterborne electronic detonator driver, and the dismounting and connecting device for waterborne electronic detonator driver includes: support structure, support structure is equipped with support portion for supporting the bottom of waterborne electronic detonator driver;Locking limiting mechanism, installed on support structure, locking limiting mechanism can lock stop bump on support structure, and locking limiting mechanism can limit the bottom of waterborne electronic detonator driver supported by support portion on support portion.The utility model is convenient for the dismounting and connecting device for waterborne electronic detonator driver to dismount waterborne electronic detonator driver.

The utility model relates to an initiating explosive device smoke binding post fast clamping test tool which comprises a substrate and a plurality of groups of detection units. The detection unit comprises a pair of elastic sheets and a display lamp which are connected in series; the elastic sheet is L-shaped and comprises a fixed part and an elastic part; the fixing part is used for being fixedly connected with the substrate, is connected with the display lamp through a wire, and enables a circuit of the to-be-tested binding post to form a closed circuit after abutting against the top of the to-be-tested binding post. The elastic part is used for abutting against the side surface of the to-be-tested binding Two elastic sheets and one display lamp are connected in series to form a detection unit of the test tool, when the tool is used for detecting the initiating explosive device trigger device, the elastic sheets can be conducted with the binding posts only by directly buckling the tool above the binding posts, and after triggering, the display lamp emits light, so that rapid detection of the initiating explosive device trigger device is realized, the detection time is greatly shortened, the cost is saved, and the detection efficiency is improved. The tool can detect the triggering number of initiating explosive devices according to the need, and the number of the elastic pieces is increased.

The utility model discloses an initiating explosive device transportation detection electromagnetic protection box, which relates to the technical field of initiating explosive device transportation and comprises a box body, a box cover arranged at the top of the box body, a waterproof edge formed by bending a metal plate at the edge of an upper side port of the box body, a water vapor sealing ring fixed on a platform at the bottom of the waterproof edge, and a conductive sealing ring fixed on the inner side of the bottom of the box cover. An observation window is installed on the box cover and is made of flexible shielding glass, grooves are formed in the left side and the right side of the box body, electromagnetic shielding sleeves extending into the box body are arranged on the grooves, side opening covers installed on the box body are correspondingly arranged on the outer sides of the electromagnetic shielding sleeves, and initiating explosive device detection work can be conveniently carried out through the observation window before use; the conductive sealing ring can abut against the waterproof edge of the upper port of the box body in a contact mode, reliable electric connection is formed, the electromagnetic protection effect is achieved, the performance stability of the initiating explosive device is improved, the probability of accidents is reduced, protection detection is conducted through the electromagnetic shielding sleeve before the initiating explosive device is used, and the quality performance of the initiating explosive device is ensured.

The present application is aimed at the reliability of the separation mechanism and the problem of forced unlocking, and provides a high-reliability electromechanical servo mechanism for forced unlocking and separation of heterogeneous redundancy of pyrotechnics, which adopts electromechanical servo mechanism forced unlocking as a normal mode and has a reusable function, adopts pyrotechnic mechanism forced unlocking as a backup mode and has a one-time use function, and the forced unlocking mechanism is designed as a special-shaped slope sleeve matched with a shear pin shaft structure, the forced unlocking of the mechanism is realized through the "slit" structure, the pyrotechnic mechanism is designed as a slip ring electric circuit structure, the explosion separation is realized by controlling the driving motor assembly, and the overall device has compact space volume and high reliability.

The present application relates to a kind of pyrotechnics transient adiabatic pressure testing device and method.Utilize pressure measuring bomb to gather the output energy of pyrotechnics, form initial pressure;Utilize piston rod and hydraulic medium to realize the transient adiabatic of pressure sensor and pyrotechnics pressure transmission;Select suitable pressure sensor to obtain pressure signal, the inherent frequency of pressure sensor meets the frequency characteristic demand of test system;According to pressure test precision needs and O ring friction force calculation formula, select O ring;Design reasonable exhaust hole, exclude the air component in pressure medium, so that pressure medium meets Pascal theorem.The present application has good repeatability, eliminates the adverse effects of lumen effect on pyrotechnics pressure test results, can isolate the transient high-temperature combustion gas generated when pyrotechnics works, effectively avoid the influence of temperature on test results.

The invention relates to a modularized integrated spacecraft recycling comprehensive electronic system which comprises a power supply and distribution module, two firer management modules, a recycling interface module, a data acquisition and processing module and three FPGA control circuit modules. The modular and integrated design is carried out on each functional module, redundant parts are reduced, the circuit design is optimized, the structural shell is made of light materials, cable connection between single machines is reduced, and power supply, fire work, control and data acquisition are integrated. Under the fault mode of the FPGA control circuit module, the cold backup time controller circuit is switched and started, and normal work of the firer circuit can be guaranteed.

The utility model discloses a kind of explosion foils for in-line initiator, belong to pyrotechnics technical field, including ceramic substrate (1), metal bridge foil (2) and pin (6), the metal bridge foil (2) is set in the front of ceramic substrate (1), the ceramic substrate (1) and two pins (6) are welded on the back of ceramic substrate (1) by soldering tin (5), two through holes are provided in the position corresponding to the welding of two pins (6) of the ceramic substrate (1), metal powder (3) is filled in the through hole, metal plating (4) is further provided between the soldering tin (5) and ceramic substrate (1);The explosion foil of the utility model is relative to prior art, volume reduces more than 40%, manufacturing cost reduces more than 60%.

The invention provides a method for determining design parameters of a transduction element chip, the transduction element chip and a transduction element, and belongs to the field of electric heating ignition devices for electric initiating explosive devices. The transduction element chip comprises a bridge region, the bridge region has a V-shaped structure, and the method comprises the following steps: setting a bridge region resistance value according to a preset fusing current of the bridge region; setting the angle of a V-shaped angle in the V-shaped structure according to the preset explosion time of the bridge region under preset explosion current input; determining the length-width ratio of the bridge region according to the angle of the V-shaped angle and the resistance value of the bridge region; and setting the bridge length according to the preset critical explosion current, and determining the bridge width according to the length-width ratio and the bridge length of the bridge region. According to the method, the transduction element chip meeting the safe ignition requirement can be designed, and the design difficulty and the use cost of the chip can be reduced on the premise of ensuring the dimensional accuracy of the bridge shape.

The utility model relates to initiating explosive device detection equipment, which comprises a test unit, an operation unit and a power supply unit, modules are detachably plugged through cables, and the total weight is less than or equal to 17kg. According to the utility model, through the initiating explosive device safety test unit (the constant current source is less than or equal to 8mA), the passive impedance acquisition module and the electrical performance verification module, the battery activation state of ammunition to be tested, the reliability of an ejection network and the integrity of an equipment loop are detected; the test interface supports plug-in connection in a bullet library storage environment and is matched with a built-in double-serial-port server to complete in-situ test; the tablet computer is integrated with a touch operation interface, executes system self-inspection, a multi-mode test process and data management, and generates a resume report. The device is compatible with AC220V + / -10% wide voltage input, has multiple safety mechanisms such as relay board overtime power-off and acquisition board electrical isolation, is suitable for ammunition storage maintenance, verification before chariot filling and drill launch guarantee scenes, and significantly improves the detection efficiency and safety.

A corrosion-resistant, detachable hood driven by non-pyrotechnics belongs to the field of aerospace technology. Each two adjacent hoods in the multi-stage hood are detachably connected, and a cutting assembly is provided at the connection between the two hoods located at the bottom, which can cut and separate the multi-stage hood. The multi-stage hood is detachably connected to the upper end of the projectile, and a compressed spring is provided between the multi-stage hood and the projectile. The cutting assembly and the spring elastic force are coupled to cut the multi-stage hood, and the multi-stage hood is separated by spring ejection. The present invention adopts a cutting method under the coupling action of shape memory alloy wire thermal cutting and spring elastic force, as well as a ejection separation method. This non-pyrotechnic separation method has a simple structure, is pollution-free, and is suitable for small aircraft. The separation response is fast, and the hood can be ejected quickly. The multi-stage hood is made of nylon material, which reduces the weight of the hood. Polyaniline graphene oxide is coated on the surface of the multi-stage hood to improve the corrosion resistance of the hood.

The invention relates to the technical field of pipeline safety engineering, and discloses an airlock air curtain for closing smoke and fire of a pipeline, which comprises an outer shell, an inner shell is coaxially sleeved in the outer shell, an upper cover plate and a lower cover plate are respectively assembled at two axial ends of the outer shell and the inner shell, and the upper cover plate and the lower cover plate are both of annular structures; the outer shell, the inner shell, the upper cover plate and the lower cover plate jointly define a closed cavity, an air inlet is formed in the side wall of one end of the outer shell, a slag discharging opening is formed in the other end of the outer shell, a closing valve is arranged on the slag discharging opening, a plurality of spiral air outlets are formed in the side wall of the inner shell in the circumferential direction, and the spiral air outlets are evenly distributed in the axial direction of the inner shell. Compressed air is introduced through the air inlet holes, a continuous and uniform air curtain wall is formed through the spiral air outlet holes in the inner holes, and the safety and reliability of equipment operation are greatly improved by means of the blocking effect of airflow.