33 results about "Field of Bullets" patented technology

The invention discloses a gas launcher system for launching hails, belonging to the launching field of bullets; the gas launcher system is a special hail accelerating system for simulating hail impaction and is specially designed with the consideration of the unique physical characteristics and high running speed of hails, comprising a high-pressure gas chamber, a fast control valve, a fast loading mechanism, a transmitting tube, a high-pressure gas pipe, a gas inlet valve, a gas discharge valve and a high-pressure pump; wherein the gas launcher system ensures the integrity of the hails by using gas to push hail bullets directly to reduce local stress concentration; the fast control valve effectively saves high-pressure gas and keeps the pressure of the high-pressure gas chamber; and the fast loading mechanism greatly improves the loading speed to realize the fast emission of the bullets.

The invention discloses a bullet screen forbidding system and a bullet screen forbidding method for live video websites, and relates to the field of bullet screen type live videos. The bullet screen forbidding system comprises a forbidden-post recording module, a main remote service module, an authority management writing module, a plurality of authority reading modules and a plurality of auxiliary remote service modules. The bullet screen forbidding method includes that a user posts an illegal bullet screen, an administrator sends a post forbidding request to the authority management writing module, and the authority management writing module records a corresponding post forbidding state in the main remote service module according to an operation type value in the post forbidding request and synchronizes the post forbidding state to all the auxiliary remote service modules; the user logins in a room to send a query request to an authority unit in each authority reading module, selects the second auxiliary remote service module to send the query request and acquires the queried post forbidding state, wherein users who are forbidden to post bullet screens cannot post the bullet screens at corresponding positions within post-forbidding periods. The bullet screen forbidding system and the bullet screen forbidding method have the advantages that server workload is reduced, servers are added directly through transverse extension to meet QPS (query per second), and new server development is not needed.

The invention belongs to the field of bullet-proof armor plates, and discloses a preparation method and application of a ramie fiber/epoxy resin composite material. Ramie fiber is cut into segments, and placed in a mold cavity, the mold cavity is placed in a mechanical vibration table, the vibration power is set to 1.2 to 1.8 KW, the vibration frequency is 300 to 600 HZ, the amplitude is 1 to 5 mm, and the vibration time is 10-30 min; liquid epoxy resin, a curing agent and a silane coupling agent are uniformly mixed in a mass ratio (1 to 1.2) : 1 : (0.01 to 0.066) to obtain an epoxy resin glueliquid; the mold cavity is taken out from the mechanical vibration table, the epoxy resin glue liquid is injected into the mold cavity to soak the ramie fiber; the soaked ramie fiber is first dried at room temperature, pressurized for forming, and finally cured to obtain the ramie fiber/epoxy resin composite material. The method avoids the problems of long period for dispersion of the ramie fiberby a solution method and performance reduction caused by modification of the surface of the fiber, and the obtained ramie fiber/epoxy resin composite material can be applied to a sandwich material ofthe bullet-proof armor plates.

The invention discloses a bullet screen information processing method and system and a computer device, and belongs to the technical field of bullet screen videos. According to the bullet screen information processing method, a user can input voice information, generate the voice bullet screen or recognize the voice bullet screen as the character bullet screen according to the voice information, and convenience of bullet screen input or receiving is improved. According to the bullet screen information processing method, the voice information of the user is collected in the video playing process and processed to identify and remove the sensitive information in the voice information to generate the bullet screen information, so that the sensitive words in the voice information input by the user are effectively identified and removed in real time, and a guarantee is provided for the healthy environment of the network.

The invention relates to a bullet box, which belongs to the technical field of bullet box structures and comprises an upper box body and a lower box body combined together and connected integrally by a connecting shaft. The bullet box is characterized in that a lock device is mounted between the upper box body and the lower box body, grooves are arrayed in the lower box body, bullet trays, fixing knot components and automatic ejecting mechanisms are arranged in the grooves, the bullet trays are used for holding bullets, the fixing knob components are used for fixing the bullet trays, and the automatic ejecting mechanisms are used for ejecting the bullet tray out automatically. The bullet box is reasonable in design and fine in sealing and burglary preventing effects.

The invention discloses a bullet-proof helmet with a honeycomb block structure and a preparation method of the bullet-proof helmet, and belongs to the technical field of bullet-proof helmets. The bullet-proof helmet comprises a honeycomb block layer, a middle rigid layer and an inner buffer layer from outer surface to inner surface sequentially, wherein the honeycomb block layer is formed by filling a hexagon columnar ceramic micro-cylinder with a chopped carbon fiber composite material; the middle rigid layer is formed by impregnating carbon fiber 2D woven fabric with a thermosetting resin matrix; the inner buffer layer is formed by a thermoplastic resin matrix reinforced by a preform fabric structure with a high-toughness fiber 2D woven structure; a carbon fiber thermosetting composite material layer is further arranged on the outer layer of the honeycomb block layer. The bullet-proof helmet is high in toughness, small in overall deformation under bullet impact, lighter in weight andconvenient to carry and wear, and comfort is improved.

The invention discloses a failure-preventing double-effect bullet-proof vest and belongs to the field of bullet-proof vests. The failure-preventing double-effect bullet-proof vest comprises a bullet-proof vest body, wherein the bullet-proof vest body comprises a bullet-proof layer on the inner side and a blunt-proof layer on the outer side; the blunt-proof layer comprises a first sealing layer anda second sealing layer; the first sealing layer and the second sealing layer are connected through a reinforcing column, so that a first accommodating space is formed between the first sealing layerand the second sealing layer; non-Newtonian fluid is filled in the first accommodating space; the bullet-proof layer and the blunt-proof layer are connected through a connecting part; the connecting part comprises a support rod, an ejector rod and potassium nitrate solution; the support rod is arranged in an accommodating cavity; the ejector rod is rotatably arranged on the support rod through a torsional spring; the potassium nitrate solution is filled in the accommodating cavity; and a steering magnetic patch is arranged at one end of the ejector rod. The failure-preventing double-effect bullet-proof vest has the following advantages: the non-Newtonian fluid can rapidly improve the shearing stress when being impacted to reduce the kinetic energy of a bullet and prevent the bullet from shooting into a human body; and due to application of non-Newtonian fluid, the bullet-proof vest is softer and the situation that the traditional bullet-proof vest is harder in texture is avoided.

The invention discloses a light and small target continuously launching device, and relates to the field of bullet and light and small target launchers. The problems that an existing bullet launcher is not suitable for the launching of light and small targets and the continuous launching of flat noses is difficult to realize by adopting artificial loading are solved. A transmission system is arranged between a driving system and a shell-feeding system and a launching ejection system, a first space cylindrical cam and a second space cylindrical cam of the transmission device are arranged coaxially, the power input end of a ratchet mechanism is matched with a third space cylindrical cam, the power output end of the ratchet mechanism is fixedly connected with a bomb-pushing rotating wheel. The tail end of a connecting rod mechanism is in sliding connection with a first cam curved groove, the head end of the connecting rod mechanism is in sliding connection with a third cam curved groove,the tail end of an upper pushing rod is in sliding connection with a second cam curved groove, and the driving system drives the launching ejection system to complete the launching and ejection of contents of target projectiles through the transmission system. The light and small target continuously launching device is used for continuously launching of the light and small targets.

The invention relates to the technical field of bullet screens, and provides a bullet screen release system in allusion to the problems of tedious operations and limited user groups caused by the input of bullet screen information in the existing text mode. The bullet screen release system comprises a bullet screen information processing module, a display control module, a receiving module used for receiving voice data and a voice recognition module used for recognizing the voice data to obtain a voice recognition result; the bullet screen information processing module is used for judging whether the voice recognition result includes a preset bullet screen input wake-up word or not, if so, constructing bullet screen data according to the voice recognition result, and sending the bullet screen data to a bullet screen server; and the display control module is used for judging whether a bullet screen switch-on mark is switched on or not, if so, displaying bullet screen data, which is stored in the bullet screen server, corresponding to the current played video, otherwise, not displaying the bullet screen data corresponding to the current played video. The bullet screen release systemonly requires a user to input voice in the bullet screen interaction process, is simple and fast to operate and is applicable to controlling the bullet screen of an intelligent terminal.

The invention discloses a bullet train overhaul management and control system and method, and relates to the technical field of bullet train equipment overhaul. The system comprises a handheld terminal, a wireless torque wrench, a data server and a background management terminal; the background management terminal is used for sending an overhaul task to the handheld terminal; the handheld terminal is used for displaying the current subtask and reading the identification information in the identification code; the wireless torque wrench is used for fastening the corresponding bolt according to the preset torque value, and sending an overhaul result to the background management terminal and the data server; the background management terminal is further used for sending the overhaul result to the handheld terminal, and the handheld terminal is further used for updating the completion condition of the corresponding overhaul target according to the overhaul result and updating the current subtask when the corresponding overhaul target in the current subtask is completed. According to the system and the method, each torque value can be recorded in real time, the data authenticity is ensured, the installation torque is ensured to be within a qualified range, and later tracing is facilitated.

The invention relates to the technical field of bullets and particularly discloses a guided two-stage thrust bullet. According to the technical scheme, the guided two-stage thrust bullet comprises a bullet head, a first-stage bullet shell and a second-stage bullet shell; the second-stage bullet shell is arranged between the bullet head and the first-stage bullet shell; the front end of the bullet head is in a shape of streamline; the back end of the bullet head is embedded into a mouth formed in the front end of the second-stage bullet shell; the back end of the second-stage bullet shell is embedded into a mouth formed in the front end of the first-stage bullet shell; each of the first-stage bullet shell and the second-stage bullet shell is filled with a propellant; a primer is arranged at the bottom of the back end of the first-stage bullet shell; a fuse is arranged at the bottom of the back end of the second-stage bullet shell; one end of the fuse is buried in the propellant filled in the second-stage bullet shell; and the other end of the fuse is buried in the propellant filled in the first-stage bullet shell after penetrating through the bottom end of the second-stage bullet shell. The guided two-stage thrust bullet has the advantages of long firing range and high accuracy.

The invention relates to the technical field of bullets and particularly relates to an aluminum alloy material and an application thereof in preparation of bullet shells. The aluminum alloy material includes, by weight, 4.0-7.0% Zn, 1.0-2.0% of Cu, 0.3-0.7% of Mn, 0.01-0.05% of rare earths, 0-0.05% of Ti, 0-0.05% of Cr, and Al. The bullet shells have advantages of high toughness, ablation resistance and good formability and are tolerant of instant high temperature and pressure generated in a bullet compartment and can form elastic deformation without breaking. The bullet shell can bear chamberpressure of 400 MPa and instant high temperature of 1000 DEG C, warhead initial speed can reach 1200 m/s, and problems of deformation, cracking and corrosion of the bullet shell are avoided; comparedwith a steel bullet shell, the bullet shell is reduced by more than 20% in total mass. The parameters can reach the standard of military, so that the bullet shell made of the aluminum alloy materialcan successfully replace a copper bullet shell or a steel bullet shell at present, thus reducing the weight of light weapons and improving maneuvering characteristics and combat capability of individual soldier.

The invention relates to the field of bullet-proof glass, in particular to bullet-proof glass production and processing equipment. The bullet-proof glass production and processing equipment comprisesa material wrapping mechanism, a processing box, a machine body, a wiping mechanism, a water spraying mechanism, a water control mechanism, a driving mechanism, a conveying mechanism, a receiving boxand a control mechanism; fixed guide columns are symmetrically and rotationally connected to the half portion of the interior of the machine body, the interior of the machine body is rotationally connected with a fixed shaft, cross sections of two fixed guide columns, the fixed shaft and a conveying belt are each of a U-shaped structure, the bottom face of tempered glass is wiped, the transparencyof the tempered glass is increased, the control mechanism drives a piston inside a sliding pipe to do reciprocated sliding, water inside a connecting pipe is discontinuously discharged to the interior of a water spraying pipe, and water resources are saved; and a discharging plate is rotationally connected to the side face of the machine body, the included angle between the discharging plate andthe side face of the machine body is 45 degrees, the spring is installed between a sliding column at the bottom of the discharging plate and the fixed column, and glass discharging is achieved.

The invention discloses a full-automatic decomposition operation line for a small-caliber bullet, and belongs to the technical field of bullet decomposition equipment. The full-automatic decompositionoperation line comprises a pellet separation machine for separating the small-caliber bullet, a first conveyor belt and a screening device for screening each part of the small-caliber bullet, and theside of the pellet separation machine is provided with an exit for exporting the pellet and the cartridge; the first conveyor belt is arranged between the exit of the pellet separation machine and the entrance of the screening device; and the first conveyor belt is driven by a drive component. The full-automatic decomposition operation line divides the pellet and cartridge of the small-caliber bullet through the pellet separation machine, and then the decomposed parts are conveyed to the screening device to be screened by the first conveyor belt, waste metal is convenient to recover, the environment pollution and resource waste are reduced, and the full-automatic decomposition operation line has higher military and economic benefits. The full-automatic decomposition operation line has a high degree of mechanization, is suitable for realizing operation, can reduce the labor intensity of an operator, and improves the working efficiency and safety factor.

The invention belongs to the technical field of bullet roll angle measurement, and concretely relates to a sun direction-based bullet roll angle estimating method. After a sun direction-based bullet roll angle estimating principle is provided, a view field center angle variable sunshine visual model is established, and an optical measurement application method and design steps comprising optical measurement parameter design, optical measurement time window acquiring, roll angle estimation and roll angle estimation error analysis are provided according to the shooting direction of a practical shooting range and the test time, and whole trajectory flight test shows that the sun direction-based bullet roll angle estimating method is feasible. The above research result provides an effective solving method for references.