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88 results about "Self protection" patented technology

Self-protection engineering surveying and mapping equipment

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.
Owner:SHANGQIU NORMAL UNIVERSITY

Reusable genotyping chip and detection method thereof

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.
Owner:CHANGCHUN DONGYI YUXIN BIOTECHNOLOGY CO LTD

High-temperature open-circuit self-protection type pressure transmitter

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.
Owner:BOYI TIANJIN PNEUMATIC TECH INST

Self-protection circuit suitable for energy storage pre-charging loop

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.
Owner:CHENGDU TECLOMAN ENERGY STORAGE TECH CO LTD

A bionic underwater robot body perception autonomous obstacle avoidance method based on a double-path 1D-CNN

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.
Owner:NINGBO INST OF NORTHWESTERN POLYTECHNICAL UNIV

Self-adaptive high-power-density permanent magnet motor control method and system

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.
Owner:BAOTOU CHANGAN PERMANENT MAGENT MASCH CO LTD

Self-adapting variable-pitch folding wind-driven cleaning device for post insulator

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.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1

Corrosion type PH transmitter probe

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.
Owner:SHANGHAI DIDIAN MECHANICAL & ELECTRICAL ENG CO LTD

Electric connector

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.
Owner:LINKCONN ELECTRONICS

Police anti-explosion fork with self-protection function

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.
Owner:石荣耀

Online detection method and system for components of molten steel in RH refining furnace based on LIBS (Laser-induced Breakdown Spectroscopy)

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.
Owner:UNIV OF SCI & TECH BEIJING

Fire monitor head with water curtain cooling and self-protection functions

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.
Owner:大连汇高智能设备制造有限公司

A self-protection flux-cored wire dividing device

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.
Owner:CHANGZHOU HONGGU WELDING MATERIAL

Self-adaptive variable-pitch folding wind-driven cleaning device for column insulator

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.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1

Flexible loop closing device body topological structure and self-adaptive protection method

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.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Spider car ride shock absorbing device

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.
Owner:CHANGZHOU NEW LANLING AUXILIARY EQUIP OF ELECTRIC POWER CO LTD

Large-format ground rail laser cutting machine

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.
Owner:CHINA MACHINERY CNC TECH FUJIAN CO LTD

Corrosion-resistant aluminum alloy plate for battery and preparation process of corrosion-resistant aluminum alloy plate

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.
Owner:广东红荔枝新材料科技有限公司

Normally closed electromagnetic valve with self-protection function

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.
Owner:LIAOCHENG DONGVAL ARTIFICIAL INTELLIGENCE TECHNOLOGY CO LTD

Fireproof intelligent monitoring equipment

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.
Owner:SHANDONG YINGKE INTERNET OF THINGS TECH CO LTD

Automatic monitoring and alarming device for cooling protection of glass kiln

The utility model discloses an automatic monitoring and alarming device for cooling protection of a glass kiln, and relates to the technical field of glass kiln monitoring. The device comprises a kiln, a heat dissipation groove is formed in the kiln, a cooling mechanism is arranged on the side face of the kiln, and a detection mechanism is arranged on the side face of the kiln. The cooling mechanism comprises an air inlet pipe and an exhaust pipe, a blocking block is arranged in the air inlet pipe, a guide groove is formed in the side face of the blocking block, and a clamping block is arranged on the side face of the guide groove. The internal temperature of the kiln can be monitored in real time through the arranged detection mechanism, when the arranged detection mechanism detects that the temperature is high, the arranged detection mechanism can be triggered to conduct self-protection, and the synchronously arranged cooling mechanism can convey cooling airflow to the interior of the heat dissipation groove to conduct cooling operation; and the arranged cooling mechanism can conduct communication operation on the air inlet pipe by pressurizing cooling airflow when electric control fails, and the timeliness of temperature control in the kiln is guaranteed.
Owner:SHANDONG JINGYAO GLASS GRP

A boltless fastening copper bar connecting conductive device for low voltage distribution cabinet

The application relates to the technical field of conductive connecting devices, and discloses a boltless fastening copper bar connecting conductive device for a low-voltage distribution cabinet, which comprises a low-voltage distribution cabinet, a line one and a line two are arranged in the low-voltage distribution cabinet, a fixed shell is fixedly installed in the low-voltage distribution cabinet, and a conductive mechanism and a triggering mechanism are arranged in the fixed shell. In the application, an elastic pressure connection mechanism of a guide column and a positioning spring is adopted, under the continuous and uniform elastic force of the spring, the two ends of the copper bar and the line one and the line two always keep close and stable surface contact, the connection reliability under long-term operation is enhanced, the enhanced magnetic field generated by the fault current itself is directly used as a triggering signal, the contact surface can be instantaneously forced to separate, the circuit can be rapidly and reliably disconnected, the built-in self-protection mechanism reduces the dependence on external independent circuit breakers, shortens the duration of the fault current, and protects the rear-end equipment.
Owner:XIAMEN MINGHAN ELECTRIC

Anti-falling medical examination bed

The utility model provides an anti-falling medical examination bed which comprises a medical examination bed assembly and a base assembly, and the base assembly is installed at the lower end of the medical examination bed assembly. Wherein the medical examination bed assembly comprises a medical examination bed and a mattress, and the mattress is arranged at the upper end of the medical examination bed; the base assembly comprises four supporting legs, a mounting frame, a motor and an anti-falling guardrail, the four supporting legs are fixedly mounted at the lower end of the medical examination bed in a rectangular array, universal wheels are fixedly mounted at the lower ends of the supporting legs, and a fixing frame is fixedly mounted between the bottoms of the two supporting legs located on the same side of the medical examination bed; the mounting frame is fixedly mounted among the bottoms of the four supporting legs, and the motor is fixedly mounted in the middle of the lower end of the mounting frame. The anti-falling device can achieve the anti-falling function and is adjustable, so that the applicability is improved, the self-protection function is achieved, and the service life is long.
Owner:SICHUAN MINGRUI MEDICAL EQUIP CO LTD

Crack self-inspection alarm protection system for large cushion block of cubic press

The utility model discloses a crack self-inspection alarm protection system for a large cushion block of a cubic press, which relates to the technical field of artificial diamonds and comprises a signal acquisition module, an analog-to-digital conversion module, an industrial personal computer, an alarm device, a relay module and an actuating mechanism. The six tension sensors are used for monitoring tension changes of the root of the large cushion block in real time, instant detection of cracks is achieved, when abnormal conditions such as the cracks are detected, the system rapidly triggers the alarm device and the executing mechanism, equipment stops heating and releases pressure in time, blasting and wounding accidents caused by explosion of the large cushion block are avoided, and the safety of the large cushion block is guaranteed. Through continuous monitoring and data analysis, the system reduces the manual inspection cost, predicts the service life of equipment and potential fault points, and provides support for equipment maintenance and management. The alarm device and the relay module cooperate with each other, so that the reliability of the system and the self-protection capability of the equipment are enhanced.
Owner:KAIFENG BASECO SUPERHARD MATERIALS CO LTD

Intermediate billet descaling device with self-protection function

The utility model discloses an intermediate billet descaling device with a self-protection function, which comprises a roller conveyor used for conveying an intermediate billet body, an upper descaling header is mounted at the top of the roller conveyor, a lower descaling header is mounted at the bottom of the roller conveyor, an upper descaling nozzle is communicated with the outer wall of the upper descaling header, and a lower descaling nozzle is communicated with the outer wall of the lower descaling header. And the outer wall of the lower descaling collecting pipe is communicated with a lower descaling nozzle. The upper dephosphorization nozzle and the lower dephosphorization nozzle are used for washing the surfaces of the two sides of the intermediate billet body in a 15-degree inclined mode, iron oxide on the surfaces of the intermediate billet body is thoroughly removed, the upper dephosphorization nozzle and the lower dephosphorization nozzle are installed in a hidden mode, the self-protection effect is achieved, the anti-collision baffle is installed on the outer side of the upper dephosphorization nozzle, and a supporting rib plate reinforcing structure is additionally arranged. The anti-collision baffle can move in cooperation with the torsional spring, elastic buffering is achieved, the service life of the device is prolonged, the problem that steel is poured in finish rolling or a middle billet is warped and collides with the descaling nozzle obliquely is solved, and deformation of the hot rolling descaling header can be further prevented.
Owner:JIANGSU SHAGANG STEEL CO LTD +2

Fixed-length lifting system control device

The utility model discloses a control device for a fixed-length lifting system, which belongs to the technical field of profile production and is characterized in that an old fixed-length lifting control system is transformed by utilizing a Siemens 6RA80 direct-current speed regulating device under the existing condition; the system has the advantages of high cost performance ratio, stable performance, reliable operation, high adjustment precision, convenient parameter setting, complete self protection, low failure rate and the like, and completely meets the technological requirements of a rolling production line.
Owner:路雪

Source code encryption and decryption method and device

The invention provides a source code encryption and decryption method and device, and solves the problem that a source code is easy to crack due to the defects of the existing source code encryption and decryption technology. According to the method, the relationship with the kernel of the Linux operating system is close, separation protection is carried out on the self-protection source code and the third-party open source code, and the safety of the system is improved while the system performance is guaranteed.
Owner:ROCK AI

A flood-proof window for polder areas under the constraints of traditional architectural style protection

The present invention relates to the field of flood protection and flood prevention technology for wooden windows of architectural style during flood seasons. Disclosed is a flood prevention window for embankment areas, which is applied under the constraints of traditional architectural style protection. The outer frame is provided with multiple groups of wooden windows, including upper and lower flip windows interconnected by hinges. The outer frame is also provided with a cavity connected to the outside through a water inlet, as well as a control assembly for controlling the folding of the corresponding group of wooden windows. The wooden window is also provided with a trigger assembly electrically connected to a buzzer. The trigger assembly includes a matching arc rod and a track guide rod, as well as an electrode ball connected to one end of the track guide rod and an electrode seat installed in the arc rod. When the upper and lower flip windows are folded, the electrode ball can be caused to contact the corresponding electrode seat. Compared to the prior art, the present application solves a series of problems in the prior art, such as the lack of self-protection functions of traditional exterior wall windows in the event of flood hazards, and the resulting vulnerability to damage from immersion.
Owner:TSINGHUA UNIVERSITY +1

Multi-parameter intelligent joint control system for sulfur acid-making boiler water and corrosion prevention method

The invention discloses a multi-parameter intelligent joint control system for sulfur acid making boiler water and a corrosion defense method, the system comprises a data acquisition module, a data processing module, a control module, an execution module, a feedback module and a self-protection module, the data acquisition module comprises a distributed sensor array, the data acquisition module is used for acquiring multi-parameter data of boiler water in real time, the multi-parameter data comprises a PH value, a dissolved oxygen content, an ion concentration, a temperature, a pressure, a flow rate and an oxidation-reduction potential, and the data processing module is used for preprocessing the multi-parameter data acquired by the data acquisition module and predicting a corrosion risk. According to the method, data are collected in real time through the distributed sensor array, the corrosion risk is predicted through the corrosion risk prediction model, multi-target optimization control is conducted in combination with the reinforcement learning model, high-temperature protection, impurity filtering and closed-loop correction are integrated, real-time defense of boiler water corrosion is achieved, the maintenance cost is reduced, and the reliability and efficiency of the system are improved.
Owner:WYLTON CHINA CHEM