178 results about "Explosive device" patented technology

An explosive downhole tool includes a housing having an upper housing part on one side of a window section and a lower housing part on an opposite side of the window section. An explosive charge is provided within the housing for cutting or expanding the wall of the tubular. The majority of outer surface of at least one of the upper and lower housing part in cross-section is rounded so as to be devoid of corners. The rounded surface eliminates the presence of sharp corners that may catch on restrictions or protrusions in a wellbore so that the downhole tool is more easily conveyable within a wellbore. Another explosive downhole tool includes fins extending from the housing. The fins have a height that decreases in a direction away from the housing. The shape of the fins enables the downhole tool to be more easily conveyable within the wellbore.

The invention belongs to the technical field of aircraft recovery, and provides an aircraft controllable parachute recovery device which comprises a parachute opening motor (1), a motor support (2), a motor rocker arm (3), a connecting rod (4), a recovery parachute cabin (5), a parachute cabin cover (6), a parachute cabin locking block torsional spring (9), a locking block rotating shaft (10), a driving rod (11), an unlocking hook (12), a spring guide rod (13), an initial locking rod (14), a parachute opening shaft (21), a parachute opening compression spring (18), a parachute hanging screw (17), a recovery parachute (19), a tower spring (20) and a tower spring pressing plate (15). According to the technical scheme, the motor drives the connecting rod mechanism to unlock, the tower spring and the pressure spring are combined to open the parachute, and the problems that an initiating explosive device is low in safety, poor in testability, unrepeatable in recovery and the like are solved.

The invention relates to a low-cost parachute landing recovery system for a microgravity load return capsule, and aims to realize an efficient, reliable and economical recovery scheme through modular design, all modules are connected through standard interfaces, and assembly, maintenance and upgrading are facilitated. The structure module is used for assembling the parachute module and providing necessary shock resistance; the parachute module is used for pneumatic deceleration and attitude stabilization of the system and adopts a multi-stage unfolding structure; and the initiating explosive device module is used for bouncing the brake parachute, releasing the brake parachute and releasing a parachute closing opening. According to the system, the production and maintenance cost is remarkably reduced through modular design, meanwhile, the reliability and adaptability of the system are improved, and the system is suitable for various microgravity load return scenes and has wide market application prospects.

The utility model relates to the technical field of initiating explosive devices, in particular to a medicine strip cutting-off system which comprises a medicine strip cutting-off device, the medicine strip cutting-off device comprises a frame body, a cutter structure, a power piece and a transmission mechanism, and the power piece and the transmission mechanism are both arranged on the frame body. The medicine strip cutting-off process adopting the medicine strip cutting-off system comprises the steps that firstly, the power piece is controlled to work, the upper cutting blade and the lower cutting blade are moved and separated, and a cutting edge is formed between the two cutting edges which are closest to each other; then the medicine strip is conveyed to the shearing knife edge from top to bottom, and the lower end of the medicine strip penetrates through the shearing knife edge and is held by a worker; and finally, the power piece is controlled to work again, the upper cutting blade and the lower cutting blade move to be close to each other, the medicine strip is cut off under the action of the cutting edges of the upper cutting blade and the lower cutting blade, and therefore the cutting work of a section of medicine strip is completed. Compared with the prior art that the medicine strips are cut off manually, the labor intensity is remarkably reduced, the requirement for personnel is lowered, the cutting-off efficiency is improved, and automatic production is facilitated.

An explosive downhole tool includes a housing having an upper housing part on one side of a window section and a lower housing part on an opposite side of the window section. An explosive charge is provided within the housing for at least one of cutting and expanding the wall of the tubular. The outer surface of at least one of the upper and lower housing part is rounded so as to be devoid of corners. The rounded surface eliminates the presence of sharp corners that may catch on restrictions or protrusions in a wellbore so that the downhole tool is more easily conveyable within a wellbore. Another explosive downhole tool includes fins extending from the housing. The fins have a height that decreases in a direction away from the housing. The shape of the fins enables the downhole tool to be more easily conveyable within the wellbore.

The invention relates to the technical field of image recognition, and particularly provides a YOLOv11 blasting site initiating explosive device real-time detection method fused with multi-scale feature enhancement. A multi-scale attention module is introduced into a backbone network, and a cross-level feature aggregation module is used in a neck network, so that the parameter quantity and the calculation quantity are remarkably reduced, and the detection accuracy is improved. The detection precision and the real-time performance are improved, and the identification degree of shielded targets and small targets in a complex environment is enhanced; the lightweight model is suitable for efficient operation on terminal equipment with limited resources, easy to deploy and high in adaptability, the intelligent level of safety monitoring and management can be remarkably improved, safety accidents are effectively prevented and reduced, and the safety of workers is guaranteed.

The header of an EED is redesigned to increase stiction forces to better hold the main charge throughout deflagration. The header includes a main charge holder, integrally formed or as a discrete component, that has internal structure that is press fit to a complementary outer surface of the main charge. The contact area between the internal structure and the main charge being greater than the contact area between a cylinder that circumscribes the internal structure (the uniform cylindrical shape of a typical EED contact area of π*D*L) to increase stiction forces between the main charge holder and the main charge. For a given diameter and length, the inclusion of the internal structure will reduce the mass of the main charge.

A system for delivering and activating a two-part explosive may include an unmanned vehicle and / or an elevated structure, and a two-part explosive device. The device may include a container that is attached to, and releasable from, the unmanned vehicle or elevated structure. The container may contain an unsensitized explosive enclosed in a casing and and a sensitizing agent adjacent to the casing. The device may include an opening mechanism positioned at least partially within the container and adjacent to the casing. The opening mechanism may open the casing and expose the unsensitized explosive to the sensitizing agent, forming the two-part explosive in response to the container being released from the unmanned vehicle or elevated structure. The device may include a detonator inside or attached to the container. The detonator may trigger ignition of the two-part explosive after the unsensitized explosive is exposed to the sensitizing agent.

A ballistically-safe wellbore tool may include an explosive device, an initiator including an initiating charge, and a bias member. A relative configuration of the explosive device and the initiator may be switchable between a first configuration, in which the initiating charge is at a ballistically safe distance from the explosive device, and a second configuration, in which the initiating charge is within a ballistically operable distance from the explosive device. The bias member is configured to bias the explosive device and the initiator to the first configuration.

Described herein, according to various aspects, are unmanned aerial systems (UAS) that can carry multiple layered modules on a mission. An exemplary UAS may include layered modules that contain functional components such as communication relay modules, armor, batteries, charging modules, propulsion modules, GPS modules, sensor modules, processors, databases, lights, explosive devices, electronic attack devices, payloads, flotation and / or buoyancy control devices, etc. The layered modules can be easily added and / or removed, which allows the UAS to be reconfigured to perform different missions without significantly modifying the structure of the UAS. The layered modules can be deployed at specific locations along a flight path of the UAS to perform location-dependent functionalities (e.g., surveillance of a target region). Multiple layered modules can be coupled to expand upon the payload capacity and the functionality of the UAS. Such an UAS can thus provide a versatile, multifunctional vessel for performing different autonomous missions for military and commercial applications.

The invention discloses a collision test method and test system for an energy storage element of an electronic detonator, and belongs to the technical field of initiating explosive device test. The method comprises the following steps: blocking an electronic detonator sample with a first rotating speed by adopting a blocking mechanism on a collision test system, so that the electronic detonator sample collides with the blocking mechanism; capturing a voltage curve image at the collision moment T through a voltage curve monitoring and processing unit, and calculating to obtain a first drop amplitude value under the maximum voltage at the collision moment T according to the captured voltage curve image; capturing a voltage curve image from the collision moment T to the first collision duration T + T1 through a voltage curve monitoring processing unit, and calculating to obtain a voltage drop rate from the collision moment T to the first collision duration T + T1 according to the captured voltage curve image; and evaluating the impact resistance of the energy storage element according to the obtained first drop amplitude under the maximum voltage and the voltage drop rate. The collision test method provided by the invention is beneficial to improving the accuracy of a collision test result.

The invention discloses a damping fluid outflow coefficient rapid testing device capable of simulating driving force of an initiating explosive device. The air cylinder piston can amplify the airflow pressure and transmit the airflow pressure to the donor piston within millisecond, so that the main characteristics of the driving force on the donor piston are basically consistent with those of the driving force of the initiating explosive device, and the effect of simulating the driving force of the initiating explosive device is achieved; the donor piston pushes the damping liquid to pass through the oil passing sheet to simulate the damping effect process, and the change of the length-diameter ratio of the central oil passing hole can be realized by replacing the oil passing sheet, so that the damping effect of the oil passing holes with different length-diameter ratios can be simulated and tested at the initial stage of development; the movement speed of the acceptor piston is consistent with the flow speed of the damping fluid after passing through the oil passing sheet, and the movement speed of the acceptor piston is indirectly obtained based on a photoelectric target signal. Therefore, the outflow coefficients under different temperatures, different damping fluid types, different overflowing hole structure sizes and different driving forces can be obtained, and the damping effect under different working conditions can be rapidly evaluated.

The invention relates to an underwater platform releasing and cable cutting mechanism which comprises a releasing base, a shell, a push shaft, a releasing hook, an initiating explosive device, a watertight connector and a cable limiting structure. The shell is fixed to underwater equipment through the release base and provided with a closed pneumatic cavity, the push shaft is slidably connected to the pneumatic cavity, and the two ends of the push shaft extend out of the two ends of the shell. One extending end of the push shaft is matched with the release hook so as to limit the underwater platform to the underwater equipment; the other extending end of the push shaft is a cutting knife; the cable limiting structure limits the cable to one end corresponding to the cutting knife, and the position of the cable corresponds to the position of the cutting knife. The initiating explosive device is electrically connected with the underwater equipment through the watertight connector and used for receiving signals of the underwater equipment and releasing high-pressure gas to the pneumatic cavity, the high-pressure gas pushes the push shaft to move towards the cable, the push shaft is made to be disengaged from the release hook to relieve limiting of the underwater platform, and meanwhile the cutting knife moves to cut off the cable. According to the invention, the release of the test platform and the cutting of the cable can be synchronously completed, the full-water-pressure balance is realized, and the adaptability is high.

The invention provides a high-pressure gas membrane rupture pressure measuring device and a measuring method thereof, and belongs to the technical field of pressure measurement. The measuring device comprises a pressure generation system, a gas compression system, a gas injection system, a pressure measuring system and a diaphragm clamping system. The piston divides the cavity into a hydraulic cavity and a gas compression cavity, and the piston is hydraulically driven to compress the pre-filled gas, so that the diaphragm is broken. The pressure measurement system records pressure-time data in real time, and a sliding window average algorithm is adopted to extract a membrane rupture pressure peak value. According to the technical scheme, inert gas is used, initiating explosive devices are not used, membrane rupture energy is only gas expansion, the protection box can absorb fragments, and explosion-proof transformation is not needed in a laboratory. And the smoothed unique membrane rupture pressure value is output through a sliding window averaging algorithm, and manual reading errors are eliminated. According to the technical scheme, the device is compact in structure, safe to operate, rapid in testing and suitable for accurately measuring the diaphragm rupture pressure of the gas gun diaphragm in a conventional laboratory.

The utility model discloses a single foot twist break type transducing element. Including electrode plug, shell, fixed glue, solder and bridge silk. The utility model has designed single foot twist break type initiating explosive device structure in the country first, is a novel structure's transducing element for missile gyro, has higher firing reliability, twist break reliability and security, can be applicable to various gyro ignition, provides new train of thought for gyro design and structure optimization. Product adopts single foot structure electrode plug, double bridge parallel firing design, constitutes firing unit after filling detonating agent, integrates firing and working function, realizes product 700ma firing, 35MPa output pressure bearing, foot line 3.92N the twist break of cm, 59kPa vacuum ignition, damp heat, medium withstand voltage, electromagnetic compatibility, firing reliability 0.999 etc. technical index requirement. The utility model product reliability, security, versatility are high, and environmental adaptability is strong, and the technology reaches the leading level in the country, and the application prospect is wide, and military, economic benefit is remarkable.

The invention discloses an initiating explosive device production line safety risk assessment method based on digital twinning and risk field theory fusion, and the method comprises the steps: building an initiating explosive device production line twinning model based on the field data of an initiating explosive device production line, and importing the model into a digital twinning platform; based on a risk field theory, an initiating explosive device production line safety risk mathematical model is constructed, and safety risk attribute definition is mathematically performed on each part of the initiating explosive device production line twin model through the mathematical model in a digital twin platform. According to the method, the three-dimensional risk field models of the kinetic energy field, the potential energy field and the behavior field are constructed, various risk sources in the initiating explosive device production line are comprehensively described, and compared with a traditional single fault diagnosis method, the multi-dimensional risk modeling method can more comprehensively and accurately reflect potential safety hazards in the production process; meanwhile, risk assessment is more accurate through risk quantification.

Safe addressable firing controls positioned within a reusable housing that only allows voltage and current from the shooting panel to reach the explosive device by addressing the switch to open allowing electricity to pass through it and setting off the chain reaction during detonation, wherein the safe addressable firing controls positioned within a cartridge that creates a safety barrier between the surface equipment and a downhole tool, such as an explosive device.

The explosive injection shaping cutter for the initiating explosive device comprises a cutter mounting body, a plurality of shaping blades are fixedly mounted at the bottom of the cutter mounting body, and asymmetric double-angle blades are arranged on the two sides of each shaping blade. The medicine injection shaping cutter is simple in structure, has the characteristics that the weight of the cutter is suitable for manual operation, safety is guaranteed, the cutter is provided with multiple blades and the asymmetric double-angle blade structure is adopted, the cutter can better adapt to medicine surface appearances under different complex conditions, shaping precision is high, medicine surface slicking work is easily completed, production quality and efficiency are both improved, and the cutter conforms to the lean production principle.

The invention discloses a method and a system for measuring the resistance value of an initiating explosive device of a carrier rocket, and the system for measuring the resistance value of the initiating explosive device of the carrier rocket comprises a central controller, a constant current source detection device, a safety protection device, a measurement control signal output device and a resistance detection result output device. The method has the technical effects of high measurement accuracy and high measurement safety.

The utility model relates to the technical field of army teacher training auxiliary tools, and discloses a weapon launching bidirectional acousto-optic smoke effect simulation device, which comprises a device main body, and a bidirectional initiating explosive device is fixedly connected in the device main body. According to the weapon launching bidirectional acousto-optic smoke effect simulation device, through cooperative arrangement of the device main body, a limiting groove, a reset spring and a fixed suction cup, the device main body is rotationally clamped into a 40mm rocket barrel during training use, and then the reset spring is driven to be compressed; when the device main body is rotated and clamped to a proper position, the fixed sucking disc stops moving and is adsorbed on the inner wall of a 40mm rocket barrel for anti-skid fixation, and when the device main body needs to be separated, the device main body can be pulled out by rotating and loosening the fixed sucking disc, so that the anti-skid adsorption and fixation effects on the weapon launching two-way acousto-optic smoke effect simulation device and the 40mm rocket barrel are achieved; the operation is simple, and the possibility of loosening and falling off is low.

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; and the narrow-side strength enhancing structure is arranged on the narrow-side bridge and is used for enhancing the strength of the narrow-side bridge. The circuit substrate structure provided by the utility model is beneficial to reducing the size of the protruding body of the energy storage capacitor and improving the reliability and stability of the energy storage capacitor.

The technology subject of the present application generally concerns a mechanical percussion fuze having a mechanism involving at least two independent safety features. The two independent physical features operate in different environments to prevent accidental detonation of an explosive device implementing the fuze of the invention. Each safety feature has an Armed state and a Safe state. Each of the safety features must be mechanically changed from the safe state to the armed state within a predetermined period of time for the explosive device to be armed and ready to detonate upon impact.

The invention relates to the technical field of initiating explosive device detonating, and discloses a detonating control chip adjusting method and system. The adjustment and calibration method is applied to the control chip adjustment and calibration equipment and specifically comprises the following steps that S101, a control chip adjustment and calibration request sent by a terminal is received, and the control chip adjustment and calibration request comprises a Tr imCode code pre-implanted in a control chip and target parameters of control chip adjustment and calibration; s102, acquiring a Tr imCode code, performing circuit simulation on an oscillator on the designed control chip, acquiring a temperature drift simulation result of the oscillator, and determining whether the temperature drift simulation result of the oscillator can counteract a deviation introduced by a process corner parameter or not; s103, if it is determined that the temperature drift simulation result of the oscillator can counteract the deviation introduced by the process corner parameters. An isolation protection circuit of a high-voltage circuit, a digital circuit and an analog circuit is designed for the control chip, circuit isolation and power isolation are adopted, and efficient high-voltage high-power control and high-precision timing control functions are achieved respectively.

The invention relates to the technical field of initiating explosive device production, and discloses an explosive charging device for initiating explosive device production, which comprises a base, a conveying belt is arranged in the base, a support frame is fixedly connected to the front side of the base, a fixed plate is fixedly connected to one side of the support frame, a stock bin is fixedly connected to one side of the top of the support frame, and the fixed plate is fixedly connected to the other side of the top of the stock bin. And one side of the fixing plate is fixedly connected with a discharging port, the top of the fixing plate is provided with a charging assembly and an adjusting assembly, and the bottom of the fixing plate is provided with a rotating assembly. A motor is started to drive a half gear to rotate, the half gear rotates to drive a rotating disc to intermittently rotate through cooperation of a full gear and a rotating shaft, the rotating period is a half circle, the two first feeding pipes are arranged at the bottom of a stock bin and the top of a discharging port correspondingly, one feeding pipe feeds the other feeding pipe, and the two feeding pipes alternately operate and move; in the moving process, the cover plate is in a sealed state, raw material leakage is avoided, and the charging continuity and the production efficiency are improved.

The utility model discloses a connecting seat structure for an electronic detonator and an electronic detonator control module comprising the connecting seat structure, and belongs to the technical field of initiating explosive devices. The connecting seat structure comprises: an electrically insulating support body; the first conductive pin comprises a first connecting end, a first middle connecting section and a first inserting abutting end which are connected with one another, and the first middle connecting section is connected to the electric insulation supporting body; the second conductive pin comprises a second connecting end, a second middle connecting section and a second inserting abutting end which are connected, the second middle connecting section is positively connected to the electric insulation supporting body, and the first connecting end, the second connecting end, the first inserting abutting end and the second inserting abutting end are exposed to the outer side of the electric insulation supporting body; the second connecting end and the first connecting end form a pair of leg wires, and a first inserting part is formed between the second inserting abutting end and the first inserting abutting end. The connecting seat structure for the electronic detonator is favorable for realizing the connection between the bus and the electronic detonator control module and preventing the bus from being twisted.

The application provides a chute blocking blasting charge structure and a blasting method, and relates to the technical field of blasting, and comprises an explosion device and an ignition device.The explosion device comprises an umbrella-shaped explosion assembly and a columnar explosion assembly, and the columnar explosion assembly is located between the umbrella-shaped explosion assembly and the ignition device.The umbrella-shaped explosion assembly comprises a plurality of limiting frameworks and first explosives fixed on the surfaces of the limiting frameworks, adjacent two limiting frameworks have a predetermined angle, and a plurality of the limiting frameworks form an umbrella-shaped structure at the lower end of a blocking body.The application greatly improves the effect of blasting construction, ensures the safety of blasting, improves the efficiency of underground blasting construction, is convenient for on-site construction, can effectively deal with long-distance blocking of a main chute shaft, and is well applied in mines.

An explosive downhole tool includes a housing having an upper housing part on one side of a window section and n lower housing part on an opposite side of the window section. An explosive charge is provided within the housing for cutting or expanding the wall of the tubular. The majority of outer surface of at least one of the upper and lower housing part in cross-section is rounded so as to be devoid of corners. The rounded surface eliminates the presence of sharp comers that may catch on restrictions or protrusions in a wellbore so that the downhole tool is more easily conveyahlc within a wellbore. Another explosive downhole tool includes tins extending from the housing. The fins have a height that decreases in a direction away from the housing. The shape of the fins enables the downhole tool to be more easily conveyable within the wellbore.

The application provides a kind of automatic detection switching device for wire device, including support assembly and wire carrier assembly, the support assembly is opened in two holes on main support, one hole is installed with switching connector, for interfacing wire carrier assembly, another hole is used to install leaded explosive device;The wire carrier assembly includes switching socket, wire carrier body and switching connector, the wire carrier body is slotted at one end for installing switching socket, switching socket is used to interface the lead of leaded explosive device, the other end is installed with switching connector, the switching socket and switching connector are electrically connected;The slotted end of the wire carrier body is closed with switching socket cover plate.The application can ensure the safety of short circuit during the switching process of connector, while reducing the interfacing accuracy requirement of micro plug and automatic detection equipment, greatly reducing the automatic production and detection cost of such products.

The utility model provides a light long-distance non-contact dangerous initiating explosive device laser destruction vehicle, which comprises an optical system, a holder, a mounting seat, an air-cooled laser, a large connecting platform, an intelligent crawler, a small connecting platform, a battery and a remote control terminal, the holder is connected with the optical system and the mounting seat through screws; the mounting seat is connected with the holder and the intelligent crawler through screws; the air-cooled laser is fixed on the large connecting platform through a screw; the large connecting platform is connected with the air-cooled laser through screws; the intelligent crawler is respectively connected with the large connecting platform, the mounting seat and the small connecting platform through screws; the small connecting platform is connected with the battery and the intelligent crawler through screws; the remote control terminal is configured to output signals to the intelligent crawler, the holder and the laser. The laser destroying device is compact in structure and light in weight, dangerous initiating explosive devices can be destroyed in a long-distance non-contact laser mode, and the safety of operators is greatly guaranteed.