122 results about "Self protection" patented technology

The invention discloses a preparation method of a rapidly-formed Janus structure stretchable electrode, an electrode material system is a material system composed of thermoplastic polyurethane (TPU), liquid metal particles and N, N-dimethylformamide (DMF), and electrode forming comprises two self-assembly processes. In the first self-assembly process, the liquid metal particles rapidly settle to form a Janus structure under the action of gravity; and a second self-assembly process: quickly dissolving DMF in water under the action of phase separation, and quickly separating out TPU to form a porous structure. The whole electrode forming process is about 15 seconds, which is the fastest stretchable electrode film forming process so far. The electrode has high conductivity, high stretchability and insensitivity to tensile strain, the electrode can spontaneously form a Janus structure with one conductive side and the other insulated side so as to achieve a self-protection structure for the whole electrode, and the electrode is expected to be applied to the flexible electronic fields of electronic skin, human body information detection, stretchable electronic devices and the like.

The invention discloses self-protection engineering surveying and mapping equipment which comprises a total station body and a tripod seat body, the total station body comprises a base fixing seat, a base rotating seat and a surveying and mapping body, a self-protection mechanism for self-protection is arranged outside the total station body, and the self-protection mechanism comprises symmetrical connecting vertical rods. The tripod base body comprises a tripod and a connecting base, and a mounting mechanism convenient to assemble and disassemble is arranged between the base fixing base and the connecting base. The to-be-corrugated PVC coating protective sleeve can extend out to cover the total station body by starting the two driving motors so as to realize self-protection of the total station body, and the connecting vertical rod and the lead screw can synchronously rotate along with the base rotating seat so as to avoid influence on the surveying and mapping visual field of the total station body; the arc-shaped mounting block can be extruded to be separated from the rectangular mounting groove by rotating the rotating ring clockwise, and the total station body can be lifted upwards to complete the disassembly, so that the total station body can perform another surveying and mapping conveniently.

The invention relates to the technical field of software security detection and defense, in particular to a power information system security risk detection and defense method and system. Identifying potential component vulnerabilities of the source code and the binary file based on an LSTM and an optimization recombination algorithm; setting a hook at the key point to monitor the running environment of the application program in real time, and discovering a potential vulnerability attack behavior; a dynamic stain tracking algorithm and a transparent object proxy mode are adopted to monitor a context executed by an application program and a source of a tracking variable, so that whether the application program is attacked or not is judged; when the attack is judged, an attack code line is accurately positioned by utilizing a context sensing method and a self-protection mechanism, so that real-time measures are conveniently taken to prevent the attack from being successful; the high heuristic algorithm based on the attack behavior defends unknown vulnerability attacks. Potential safety copper leakage in the codes can be found in time, the use environment of the software is monitored, potential attack behaviors are found and stopped, and the safety of the system software is guaranteed.

The invention discloses a teenager bullying early warning identification method fusing multi-modal data, and relates to the technical field of campus safety early warning, and the method comprises the steps: S1, data collection: deploying audio and video collection equipment in a campus, wearing a wristband on a student, and carrying out data collection; s2, data preprocessing and cleaning: performing preprocessing operation on the collected original data by using a data preprocessing algorithm; S3, deep learning model application: inputting the preprocessed data into a trained deep learning model, s4, abnormal behavior detection and early warning triggering: when the deep learning model recognizes that the monitored student is in an abnormal behavior mode, the system immediately triggers an early warning mechanism, and S5, continuous monitoring and data analysis: providing data support for subsequent prevention and intervention measures; through a real-time monitoring and real-time early warning mechanism, the occurrence frequency of bullying events in the campus can be remarkably reduced, the self-protection consciousness and ability of students are enhanced, and the overall sense of security of the students is further improved.

The invention belongs to the technical field of biochips, and particularly relates to a reusable genetic typing chip and a detection method thereof, the reusable genetic typing chip provided by the invention is prepared from polystyrene microspheres, capture probes and a silicon substrate, and depends on competitive hybridization of DNA in an SNP recognition stage, and the detection result is more accurate. The recognition sequence of the capture probe is converted into the sequence of the target object, and the added detection probes are hairpin probes with a self-protection function, so that the generation of false positive signals is remarkably reduced, and the detection specificity is remarkably improved. And no enzyme participates in the whole process, so that the detection process is remarkably simplified, and the detection cost is reduced.

The invention provides a high-temperature open-circuit self-protection type pressure transmitter. A meter shell is provided with a step-shaped through hole and a step surface; a piston block flange plate is located in the large hole section, and a spring is clamped between the flange plate and the step surface; a large hole section between the upper meter cover and the piston block forms a sealed inner cavity; the power supply circuit board is fixed, the signal circuit board is fixed with the piston block, a spring probe is welded and fixed on the upper surface of the signal circuit board, a probe head faces a taper hole connecting point arranged on the power supply circuit board, and the hole wall of the taper hole connecting point is coated with copper for conduction; in a normal state, the spring is in a half-compressed state, the spring probe is in a full-compressed state, and under the action of upward elastic force provided by the spring, a probe head of the spring probe can be connected through abutting against a corresponding taper hole connecting point on the power supply circuit board; when a short-circuit heating accident occurs, the internal pressure is increased along with temperature rise, and the piston is pushed to move downwards to disconnect the circuit, so that high-temperature open-circuit self-protection is realized, and the device can be recovered to use after a fault is removed.

The utility model discloses a self-protection circuit suitable for an energy storage pre-charging loop. The cathode of an energy storage power supply is connected with a cathode relay K1, and the anode of the energy storage power supply is sequentially connected with a main loop fuse F1 and an anode relay K2; the pre-charging resettable fuse F2 is sequentially connected with a pre-charging relay K3, a pre-charging resistor R1 and an anti-reverse diode D2 in series, and a series circuit is connected to the two ends of the K2 in parallel; two ends of a control coil of the K3 are respectively connected with positive and negative electrodes of a diode D1; one end of the resistor R2 is connected with a control signal P1, and the other end of the resistor R2 is connected with the resistor R3 and the base electrode of the triode Q1; the collector electrode of the triode Q1 is connected with one end of a control coil of the pre-charging relay K3 and the positive electrode of the diode D1, and the emitter electrode is grounded; the negative electrode of the diode D1 and the other end of the control coil of the relay K3 are connected with a power supply VCC through S1. According to the utility model, the self-protection of the pre-charging circuit can be realized when the pre-charging circuit performs the pre-charging action and the external load is short-circuited.

The utility model relates to a thin-walled high-strength composite lining hose, which comprises a lining hose body and a protective assembly, the protective assembly is used for protecting the lining hose body and comprises a protective sleeve, the protective sleeve is in a hollow tubular shape, and circular grooves are formed in the periphery of the protective sleeve at equal intervals. Under the cooperation of the round groove and the round ball, sliding connection of the lining hose body in the flattening machine is changed into rolling connection, sliding of the other end of the lining hose body and the ground is also changed into rolling connection, a large amount of friction force is reduced, movement of the lining hose body is facilitated, the abrasion degree of the lining hose body is greatly reduced, and the service life of the lining hose body is prolonged; the lining hose body has the advantages of high strength, corrosion resistance, good self protection, impact force absorption, environmental protection and the like due to the arrangement of the material layers, so that the use effect and the maintenance quality of the lining hose are improved, and the economic benefit and the social benefit of the pipeline are greatly optimized and improved.

This invention specifically relates to a biomimetic underwater robot body perception and autonomous obstacle avoidance method based on dual-path 1D-CNN, comprising: measuring the deformation data of the structure during water movement using digital image correlation equipment; deploying multiple flexible sensors in an array in areas of significant deformation to accurately acquire deformation signals; a central control unit monitoring the sensor signals in real time and performing collision detection using a lightweight dual-path 1D-CNN algorithm; when a collision signal is detected, the central control unit automatically issues control commands, which are converted into motor output parameters by a central pattern generator to change the robot's motion posture, enabling autonomous obstacle avoidance. This invention achieves real-time motion monitoring and highly robust, low-latency autonomous obstacle avoidance for biomimetic underwater robots in complex aquatic environments, providing an effective self-protection mechanism and improving its swimming safety and intelligence level.

The invention relates to the technical field of wind power generation control, and discloses a self-adaptive high-power-density permanent magnet motor control method and system, and the method comprises the steps: monitoring a motor current waveform zero crossing point time sequence in real time, and taking the occurrence frequency of a time sequence abnormal event as a recognition basis of a system stress state; when the stress state is identified, d-axis current is instantly injected to form flexible electromagnetic damping, q-axis current output is synchronously limited to reserve safety margin, a current distortion signal is converted from a control error to a system state messenger, response is carried out in a cooperative mode of combining flexible suppression and active protection, and the safety margin is reserved. The problems of overheating and mechanical fatigue accumulation caused by excessive compensation when a traditional control mode deals with disturbance are avoided, the control system obtains the irritability self-protection capacity, and the operation reliability of the wind generating set under the uncertain working condition is improved.

The invention discloses a lithium battery controller with a self-protection function, and relates to the technical field of lithium battery controllers, the lithium battery controller comprises an equipment body, a cable jack is formed in the outer wall of one end of the equipment body, a positioning frame is inserted into the cable jack, an auxiliary protection mechanism is arranged in the cable jack, and the cable jack is connected with the positioning frame. A passive exhaust mechanism is further arranged in the cable jack, the auxiliary protection mechanism comprises a supporting rod fixedly connected to the inner wall of the cable jack, the end, away from the inner wall of the cable jack, of the supporting rod is rotationally connected with a guide disc, and a sliding groove is formed in the outer wall of the middle of the guide disc. A first hinge rod is slidably connected to the interior of the sliding groove, a second hinge rod is hinged to the end, away from the sliding groove, of the first hinge rod, and the second hinge rod is hinged to the outer wall of the positioning frame, so that the safety of the lithium battery in the use period is improved, the safety of an internal circuit of the equipment body is guaranteed, and damage is avoided; and the service life of the equipment body is prolonged.

The utility model discloses a power output module based on support self protection. The power output module comprises a core board ox horn buckle connector, an intelligent MOS (Metal Oxide Semiconductor) BTS724G, a reserved N-MOS 2N7002, a voltage detection N-MOS 2N7002, a TE6437288-3, an MCU (Microprogrammed Control Unit), a half-bridge driver EG2104, an N channel MOS NCEP15T14D, an H-bridge driver, a voltage detection high-speed optocoupler EL0631, a current sensor CC6900, an N-MOS NCEP15T14D, a 2N7002, a comparator EG393 and an operational amplifier LM324ADR. According to the utility model, the purpose of output protection is achieved by utilizing the comparator, the operational amplifier and the IO pin of the FPGA, and the power output is protected by utilizing a hardware circuit, so that the circuit is safe, reliable and high in stability.

The application relates to a self-adaptive variable-pitch folding wind-driven cleaning device for a post insulator, which comprises a rotating mechanism, a plurality of variable-pitch folding assemblies, a plurality of fan blade assemblies and a brush assembly; the rotating mechanism comprises an inner cover and an outer shell; the variable-pitch folding assembly comprises a folding box, a semicircle ball, a reset spring, a torque box, a torsion bar and a torque spring piece; the folding box is fixed on the outer wall of the outer shell, the folding box is provided with a semicircle ball groove and a spring cavity; the semicircle ball is arranged in the semicircle ball groove; the reset spring is arranged in the spring cavity, the bottom of the reset spring is connected with the folding box, and the top of the reset spring is connected with the semicircle ball; the torque box is fixed on the semicircle ball; the bottom of the torsion bar is arranged in the torque box; the torque spring piece is wound around the bottom of the torsion bar in multiple turns, one end of the torque spring piece is fixedly connected with the torsion bar, and the other end of the torque spring piece is fixedly connected with the torque box. The device can change the angle of the fan blade and realize the folding of the fan blade according to the wind force by arranging the variable-pitch folding assembly, so that the self-adaptive opening and closing cleaning function and the self-protection purpose of the cleaning device are achieved.

The invention discloses an otolithiasis manual reduction treatment bed, and belongs to the field of medical instruments, the otolithiasis manual reduction treatment bed comprises a bed board, the bed board is detachably placed on a bed frame, the bed frame is supported by four telescopic rods and is far away from the ground, a mattress is arranged on the bed board, the mattress comprises a folding pad and a fixed pad, and a safety belt is arranged on the surface of the folding pad; the fixing pad is detachably connected with the bed board, a ratchet wheel for controlling the folding pad to rotate is arranged between the folding pad and the fixing pad, and the ratchet wheel controls the folding pad to rotate through a fixing buckle arranged on one side. In clinic, a patient often cannot quickly lie down due to self-protection and the like, and on the treatment bed, the patient firstly lies on a mattress and then is tied with a safety belt; the patient is lifted to a seat to be fixed through mechanical assistance, the head of the patient is turned to a target position to be fixed by a doctor, and then the patient is pushed forwards by a small distance to quickly lie down.

The invention relates to the technical field of interphones, and discloses a high-strength anti-falling interphone, which comprises an interphone, the storage cavity is arranged on the interphone; the antenna part is arranged on the accommodating cavity, an antenna connecting seat is arranged in the accommodating cavity, and the antenna part is inserted into the antenna connecting seat; according to the application, the antenna part can be conveniently extended when the interphone is used, stable transmission of signals is ensured, the antenna part can be automatically retracted when the interphone falls or is impacted by external force, the antenna is prevented from being damaged, and the anti-falling capability and durability of the interphone are improved. Due to the telescopic and self-protection design, the antenna improves the functionality of the interphone, and meanwhile, the safety and long-term reliability of equipment are taken into account. Compared with the traditional antenna design, the design effectively solves the problem that the antenna is easy to damage, and ensures that the interphone can still keep good working performance under the conditions of daily use, extreme drop and the like especially in a high-strength use environment.

The invention provides a preparation method of a high-efficiency alkali-hydrogen industrial electrode and a high-efficiency water electrolyser, and the preparation method comprises the following steps: 1, dissolving 5-20g of molybdenum-containing metal salt, 5-20g of sulfur-containing reagent and 20-40g of iron-containing metal salt in 1600mL of deionized water in sequence to prepare a mixed solution, and immersing a substrate with a cleaned surface into the mixed solution; and 2, standing the mixed solution immersed in the nickel foam at room temperature for 24-48 hours, then taking out a sample, washing the sample, drying the sample in vacuum for 12-48 hours, and then annealing the sample in an environment of 25-300 DEG C for 0-12 hours to obtain the efficient alkali-hydrogen industrial electrode. A novel electrolysis environment is constructed by introducing a component structure with a self-protection mechanism, and the defects that a traditional electrode is low in energy efficiency, prone to inactivation and the like can be overcome.

The utility model discloses a corrosion type PH transmitter probe, which comprises a device body, the device body comprises a plug-in device, a fixed cylinder and a protective device, the fixed cylinder is arranged at the top of the plug-in device, and the protective device is arranged at the bottom of the fixed cylinder; the protection device comprises an outer protection shell, a first reference lead, a second PH reference lead, a diaphragm and a temperature sensor, the outer protection shell is of a cylindrical structure, the diaphragm is installed at the bottom of the outer protection shell, a PH glass film is arranged at the bottom of the diaphragm and is of a balloon-shaped structure, and the temperature sensor is located in the PH glass film. The first reference lead and the second PH reference lead are both located in the outer protective shell, one end of the first reference lead and one end of the second PH reference lead are connected with the temperature sensor, and the other end of the first reference lead and the other end of the second PH reference lead are connected with the plug-in device. The device can effectively achieve the purpose of self protection, thereby preventing corrosion and damage to the transmitter probe caused by external factors.

The invention discloses an unmanned aerial vehicle countering method and device based on ultrasonic sensor deception, and the method employs an ultrasonic signal to interfere with an ultrasonic sensor of an unmanned aerial vehicle, enables the unmanned aerial vehicle to measure wrong height information and enter a landing or self-protection mode, and achieves the countering of the unmanned aerial vehicle. And personal life and property safety is prevented from being threatened or normal operation of nearby civil electronic equipment is prevented from being interfered. The method and device provided by the invention can be used for low-cost-efficiency-ratio countering of malicious unmanned aerial vehicles in densely distributed areas of population and buildings such as urban living quarters, commercial districts and industrial districts, and privacy information of individuals and enterprises is protected from being stolen by malicious persons.

The invention discloses an electric connector, which comprises an insulating body, a plurality of conductive terminals fixedly held on the insulating body and a metal shell coated outside the insulating body, and is characterized in that the insulating body is provided with a base part, a lingual plate part extending forwards from the base part along the longitudinal direction and a step part connected between the base part and the lingual plate part; the conductive terminal is provided with a holding part held on the base part and a contact part extending forwards from the holding part along the longitudinal direction, and the contact part of the conductive terminal is exposed on the upper surface and the lower surface of the tongue plate part. The electric connector comprises a pair of detection terminals fixedly held on the insulation body, each detection terminal is provided with a fixed part fixedly held on the base part and a contact piece connected to the longitudinal front end of the fixed part, and the contact pieces are formed by extending in the transverse direction and are exposed on the upper surface and the lower surface of the step part. The electric connector is used for monitoring whether hydrops and foreign matters exist in the electric connector and transmitting signals, and if the foreign matters exist, automatic power off is realized, so that the self-protection function of the product is realized.

The utility model discloses a self-protection police anti-explosion fork which comprises a connecting rod and a mounting seat, the connecting rod is connected with the mounting seat, and a knocking hammer is arranged on the inner wall of the mounting seat in a penetrating mode. The clamping assembly is arranged on the inner wall of the mounting seat, is matched with the connecting rod and is used for clamping and fixing a violender, so that the violender is prevented from escaping and being in close contact with a user to realize protection; the limiting ring is arranged in the middle of the inner wall of the connecting rod, the end, away from the knocking hammer, of the limiting ring is connected with a second spring, and the free end of the second spring is connected with a magnetic block. According to the anti-explosion device, the short-distance contact between a violender and a protector is controlled, meanwhile, an anti-explosion person can be electrically shocked through the current generated by the piezoelectric ceramics, the violender is numb, and the problems proposed in the background technology are effectively solved.

The invention provides an LIBS-based online detection method and system for components of molten steel in an RH refining furnace, and belongs to the field of ferrous metallurgy. The slag breaking gun, the purging gun and the detection gun are integrated in the three guns respectively, and the three guns are controlled to ascend and descend integrally in a servo motor and lead screw transmission mode. The slag breaking gun adopts high-pressure pulse injection type propane gas non-contact slag breaking, the purging gun adopts high-pressure nitrogen gas purging, and the detection gun is used for LIBS element composition detection; a gun self-protection linkage mechanism is detected, when the gas pressure and flow are too low, the temperature is too high or equipment communication faults occur, fault signals are fed back to an industrial personal computer, and a servo motor immediately responds and lifts the three guns to a safe distance; the molten steel liquid level continuously fluctuates, the laser range finder and a servo motor encoder are jointly controlled through an RS422 serial port communication protocol, laser is emitted to collect data, and meanwhile automatic focusing and distance adjusting are conducted; according to the invention, the accuracy, the real-time performance and the precision of online detection of the molten steel components are improved.

The utility model provides a fire monitor head with water curtain cooling self-protection, which comprises a fire monitor body, a mounting rack is mounted on the outer wall of the top of the fire monitor body, the fire monitor head is mounted on the outer wall of the front end of the mounting rack, an electric telescopic rod is movably mounted on the upper end face of the fire monitor body, and a water curtain is mounted on the electric telescopic rod. The output end of the electric telescopic rod is movably connected with the fire monitor head, and a driving assembly is arranged on the mounting frame and the fire monitor head. According to the fire monitor head with the water curtain cooling and self-protection functions, a second belt pulley is driven to rotate on the outer wall of the fire monitor head under the driving of a servo motor in the driving assembly, so that a plurality of spray heads in the water curtain assembly conduct spraying cooling around the fire monitor head; and the connecting assembly enables the electric telescopic rod to push the fire monitor head and the servo motor to push synchronously, so that the water curtain cooling effect of the fire monitor head is achieved, and the purpose of cooling the fire monitor head for self-protection is achieved.

The utility model relates to a kind of self-protection flux-cored wire's roll equipment, including machine body, rotating and being provided with drive shaft on the machine body, motor is arranged in machine body, motor drives the rotation of drive shaft, fixedly arranged with fixed disc on the drive shaft, winding disc is slidably sleeved on the drive shaft, active disc is also slidably sleeved on the drive shaft, winding disc is located between active disc and fixed disc, positioning assembly is provided on the drive shaft;The positioning assembly includes hollow tube, two screw pipes are slidably penetrated on the hollow tube, two The screw pipe is symmetrically arranged on the hollow tube.

The invention relates to a self-adaptive variable-pitch folding wind-driven cleaning device for a column insulator. The self-adaptive variable-pitch folding wind-driven cleaning device comprises a rotating mechanism, a plurality of variable-pitch folding assemblies, a plurality of fan blade assemblies and a brush assembly. The rotating mechanism comprises an inner cover and an outer shell; the variable-pitch folding assembly comprises a folding box, a semi-sphere, a reset spring, a torque box, a torsion bar and a torque reed. The folding box is fixed on the outer wall of the shell; the folding box is provided with a semi-spherical groove and a spring cavity; the semi-sphere is arranged in the semi-sphere groove; the bottom of the reset spring is connected with the folding box, and the top of the reset spring is connected with the semi-sphere; the torque box is fixed on the semi-sphere; the bottom of the torsion bar is arranged in the torque box; the torque reed is wound at the bottom of the torsion bar in multiple circles, one end of the torque reed is fixedly connected with the torsion bar, and the other end is fixedly connected with the torque box. According to the device, by arranging the variable-pitch folding assembly, the angles of the fan blades can be changed according to wind power, folding of the fan blades can be achieved, and the self-adaptive switch cleaning function and the self-protection purpose of the cleaning device are achieved.

The invention belongs to the technical field of power system relay protection and power distribution network flexible interconnection, and discloses a flexible loop closing device body topological structure, which comprises a double-core symmetric phase-shifting transformer and a mode switching interface unit, and is characterized in that the double-core symmetric phase-shifting transformer comprises an exciting transformer bank and a series transformer bank; the mode switching interface unit is arranged on a low-voltage electric energy coupling loop between the secondary side output end of the exciting transformer bank and the secondary side input end of the series transformer bank, and the mode switching interface unit is arranged on a low-voltage electric energy coupling loop between the secondary side output end of the exciting transformer bank and the secondary side input end of the series transformer bank. And the current-limiting impedance of the secondary side is mapped to the primary side by the square times of the transformation ratio, so that on the premise of not increasing the volume and cost of the external current-limiting reactor, the self-protection and fault current suppression of the body are realized, and the organic unification of steady-state current regulation and transient current limiting is realized. The invention also discloses a virtual impedance identification-based adaptive protection method matched with the topological structure of the flexible loop closing device body.

The present application relates to the technical field of buffer of engineering vehicle, and particularly relates to a spider vehicle driving impact buffer device, characterized in that the structure comprises a supporting wheel system, a supporting wheel system adjusting assembly, a buffer assembly and a supporting installation steel structure, the supporting installation steel structure is fixed at the front end of a spider vehicle walking steel frame, a first hinge lug structure for connecting the supporting wheel system is arranged on the supporting installation steel structure, the supporting wheel system is movably connected with the first hinge lug structure, and is swung around the first hinge lug structure under the driving of the supporting wheel system adjusting assembly, the supporting wheel system adjusting assembly is installed at the bottom of the front end of a spider vehicle body supporting steel frame and is connected with the supporting wheel system through the buffer assembly. The supporting wheel system is controlled to be in contact with the top surface in advance through the supporting wheel system adjusting assembly, and is buffered through the buffer assembly to prevent the front end of the engineering vehicle from being crashed to the top surface, so that damage to the top surface is prevented, and a self-protection function is also achieved.

The invention belongs to the technical field of waste collection, and particularly discloses a large-breadth ground rail laser cutting machine which comprises a transverse electric sliding rail, a fixing plate is fixed to the lower portion of the transverse electric sliding rail, storage pipes are fixed to the bottom face of the fixing plate at equal intervals, the storage pipes are obliquely fixed to the bottom face of the fixing plate, and inserting pipes penetrate through the interiors of the storage pipes. And a rotating strip is rotationally arranged on the inserting pipe. A transverse electric sliding rail in the cutting machine can drive an inserting pipe on a storage pipe through a fixing plate to stir waste residues on a cutting table, then the waste residues are separated from the cutting table, a rotating strip is connected to the inserting pipe in a rotating mode, and a connecting spring is fixed between the rotating strip and the inner wall of the inserting pipe; and when the inserting pipe is used for stirring waste residues on the cutting table, the rotating strip can rotate by taking the connecting part of the rotating strip and the inserting pipe as the center, so that the rotating strip has a buffering space, and the rotating strip has a self-protection function.

The invention discloses a corrosion-resistant aluminum alloy plate for a battery and a preparation process of the corrosion-resistant aluminum alloy plate, and belongs to the technical field of aluminum alloy processing. The corrosion-resistant aluminum alloy plate for the battery comprises a corrosion-resistant layer, a bearing layer and a protective layer which are sequentially stacked, the anti-corrosion layer comprises the following components in percentage by weight: 1 to 3 percent of Si, 0.2 to 1 percent of Mg, 0.05 to 0.2 percent of Fe, 0.01 to 0.2 percent of Cu and the balance of Al and inevitable impurities; the bearing layer comprises 0.08 wt%-0.25 wt% of Sc, 0.01 wt%-0.1 wt% of Zr, 0.2 wt%-1 wt% of Si, 0.1 wt%-0.5 wt% of Mn and the balance Al and inevitable impurities. And the protective layer comprises the following components in percentage by weight: 4 to 8 percent of Zn, 0.006 to 0.02 percent of Ga, 0.05 to 0.5 percent of Mg, 0.01 to 0.1 percent of Ti and the balance of Al and inevitable impurities. By adding Sc and Ga, an Al3Sc nanophase and a compact Ga2O3-Al2O3 composite oxide film are formed, the grain boundary corrosion potential is improved, local galvanic corrosion is inhibited, in addition, through a three-layer alloy structure, the functions of corrosion resistance, strong support and self protection are achieved, and the service life of the battery is prolonged.

The invention relates to the technical field of electromagnetic valves, and discloses a normally-closed electromagnetic valve with a self-protection function, which comprises a valve body, a mounting groove is formed in the valve body, an automatic alarm module is mounted in the mounting groove, a cover plate is arranged at the notch position of the mounting groove, the water inlet end and the water outlet end of the valve body are connected with annular pressure reduction bags, and the annular pressure reduction bags are connected with the valve body. Sliding rings are fixed to the ends, away from each other, of the two annular pressure reduction bags. An alarm signal can be automatically sent to a maintainer when the valve body is overpressure, abnormal conditions can be timely notified and handled, meanwhile, the pressure reducing assembly arranged at the water inlet end can overcome the elasticity of the pressurizing spring to enable the pressure relief block to move when the pressure of a medium in the valve body is too large, the medium is discharged through the pressure relief opening and enters the annular pressure reducing bag, automatic and timely pressure relief is achieved, and the working efficiency is improved. The valve body is prevented from being damaged by high pressure.

The invention discloses fireproof intelligent monitoring equipment, relates to the technical field of fireproof monitoring, and aims to solve the problem that the existing fireproof intelligent monitoring equipment cannot perform self-protection in a near-ignition fire so as to lose the fire monitoring capability, the fireproof intelligent monitoring equipment comprises a monitoring probe, the monitoring probe is provided with an infrared lens and a white light lens, and the infrared lens and the white light lens are arranged on the monitoring probe. And a console is arranged below the monitoring probe. The fireproof intelligent monitoring equipment disclosed by the invention has the advantages that after the device detects a near-ignition fire behavior and gives an alarm through networking, key equipment for observation and monitoring on the device is isolated and protected, so that the equipment is isolated from the spreading fire behavior; meanwhile, it is guaranteed that equipment in the fire cannot be spontaneously combusted and damaged due to the too high environment temperature, after the live wire passes through the device, the equipment in the device can normally operate and continue to monitor the fire, and therefore real-time fire information is provided for firefighters, and the effect of assisting in improving the coping capacity of the firefighters is achieved.