65results about How to "Eliminate hidden dangers of safety accidents" patented technology

The invention discloses an intelligent detection system and a detection method of press plate positions. The system comprises at least two intelligent press plates, a repeater and an upper computer, wherein all the intelligent press plates are connected in a cascaded mode and upload self position information to the repeater through a bus network; the repeater is connected with the upper computer in a network mode and used for transmitting the position information of all the intelligent press plates through a network; and the detection system is used for monitoring the real-time on-off states of the intelligent press plates and recording historical running data and can be further upgraded into an expert system for running the press plates. The invention solves the problem of position monitoring of control/tripping press plates of a relay protection system in a power system, realizes the automation of the monitoring of the press plate positions, can accurately reflect the positions of the press plates in real time and avoid error press plate on-off caused by artificial factors, eliminates safe accident hidden troubles caused by error press plate on-off, achieves scientific prevention before accidents and greatly improves the running safety of a power grid.

The invention discloses an electric closed-loop flow control adjusting valve. A displacement sensor is coaxially arranged on a main valve core to detect the main valve core displacement; output signals of the displacement sensor are input to a measuring amplifier, and are transformed and amplified by the measuring amplifier to generate feedback signals; the feedback signals are input to a subtracter, the subtracter receives command signals and the feedback signals of control valve opening, the command signals and the feedback signals are subtracted to obtain a deviation signal which is input to closed-loop control equipment; the deviation signal is corrected by the closed-loop control equipment and is input to an adding device; a feedforward controller receives the command signal and corrects the deviation signal, the deviation signal is input to the adding device; and the adding device performs adding operation on output signals which are output by the closed-loop control equipment and the feedforward controller, and the added signals are input to a proportional amplifier to control output force of an electromechanical transducer. An electric closed loop channel is superimposed on an inner mechanical feedback path; when the displacement sensor or the displacement measuring amplifier is abnormal, the valve opening quantity is still can be controlled successively; and the normal operation of the valve system is guaranteed, the reliability of the system is improved, and the control precision and response speed are improved obviously.

The invention relates to a method for the automatic detection of spatial relationship of orbits in elevating machinery. The method comprises the following steps of: 1) arranging more than three prisms as public reference points between orbits; 2) arranging a total station system at a head end C of an orbit A, arranging a measuring point prism on the orbit in a way that the prism can move along the orbit; 3) allowing the measuring point prism to move from the head end C to a tail end E, tracing and recording the three-dimensional coordinate of the motion track of the measuring point prism on a small rail car by using the total station system, and simultaneously recording the relative coordinates of the relative spatial positions of the points and the total station system, based on each public reference point; 4) repeating the step 3: tracing and recording the three-dimensional coordinate of the motion track of the prism on the small rail car by using the total station system, and simultaneously recording the relative coordinates of the relative spatial positions of the points and the total station system, based on each public reference point as reference; and 5) calculating the linearity and the levelness of each orbit and calculating the span and the height difference of the same sections between two orbits.

The invention discloses a locking mechanism, application of the locking mechanism and a locking control method used for the locking mechanism. A rotary outputting piece is locked by a connecting rod mechanism and a stable triangular supporting structure between a first lock piece and a second lock piece, the second lock piece effectively restrains the first lock piece, and reliability of locking and unlocking of a product is realized. The whole locking mechanism is controlled by the same switch piece, and a control process is compact and effective. From a mechanical structure and an automaticcontrol method, mistaken locking operation of a rotary piece during running is avoided effectively, locking reliability is high, the locking mechanism is simple and convenient to use, the whole rotarylocking mechanism can be sealed and fixed in a vehicle lock shell, and the locking mechanism is applied to transmission machinery of bicycles, electric bicycles, motorcycles and even light automobiles.

The invention discloses a safety belt suspending device for upper construction of a transformer, and the safety belt suspending device is used for the transformer. The safety belt suspending device comprises two or more than two splicing devices, wherein each splicing device comprises a splicing tube and a base fixedly connected on the top of the transformer; each base comprises a bottom plate and a stand column; each stand column is fixedly connected on each bottom plate; the quantity of the stand columns is equal to that of the splicing tubes; each bottom plate is fixedly connected on the transformer; a plurality of rib plates are arranged between the peripheries of the stand columns and the bottom plates; and the stand columns are vertically arranged. The safety belt suspending device can effectively solve the problem that protection is lost due to the fact that the safety belt for a worker on the upper part cannot be suspended when the transformer is mounted and maintained, cannot be suspended at a low place for use in a high place, and is movable in operation position.

The invention discloses a heavy door and a mounting method. The stability of the heavy door in the using process can be improved; the heavy door can bear a larger load, has better stiffness, is more suitable for low-speed and heavy-load using scenes, is simple in structure, convenient to mount and convenient to open, and is suitable for frequent use; improvement on the safety coefficient of the heavy door is facilitated; a superhigh and superheavy door leaf is effectively prevented from sinking down, falling out and shifting, so that the service life of the door is prolonged; the post maintenance cost is effectively reduced, and the cost of an entrance door project is saved; the quality of the project is improved, and potential safety accidents are avoided; the heavy door can be conveniently and quickly mounted, and improvement on the construction safety is facilitated; alignment of an earth axis and a celestial axis is facilitated so as to control the verticality of the door leaf.

The application discloses a guide vane water leakage detection system, comprising a distance sensor, a central controller and a liquid level detection device, wherein the liquid level detection devicecomprises a liquid level meter, a through pipe and a first bracket; the distance sensor and the liquid level meter are electrically connected to the central controller, respectively; the first bracket is arranged in the through pipe, the liquid level meter is arranged on the first bracket, and the arrangement direction of the liquid level meter is parallel to the axis direction of the through pipe; the liquid level meter is configured to detect the liquid level height at a vent hole, and the distance sensor is configured to detect whether a water inlet gate is located at the bottom of a waterinlet, and when the water inlet gate is located at the bottom of the water inlet, the distance sensor sends the information to the central controller, the central controller starts to record the liquid level height measured by the liquid level meter, and the central controller determines whether a guide vane has water leakage according to the liquid level change; when the liquid level measured atthe vent hole drops, the central controller determines that water leakage occurs. Thereby, the detection of the sealing effect of the guide vane can be achieved.

The invention discloses a chip anti-splash device for a milling machine, which is installed on the milling machine. The milling machine is equipped with a main shaft and a workbench. The anti-splash device includes a beam installed above the main shaft, an air channel arranged in the beam, and A plurality of nozzles installed vertically under the air channel; the beam is a cantilever structure, and the nozzles are installed along the side of the beam away from the main shaft; transparent cutting baffles are arranged on both sides of the workbench, and the transparent cutting baffle The top of the plate is in contact with the beam. In the present invention, nozzles are installed at one end of the beam of the machine tool and transparent cutting baffles are installed on both sides of the workbench, relying on the pressurized air flow ejected from the nozzles and the transparent cutting baffles to form a "U"-shaped anti-cutting and splashing area to seal the working area of ​​the machine tool , to avoid the chips splashing to the outside of the machine tool, causing hidden dangers of safety accidents, and the air wall and transparent cutting baffle will not affect the operator's sight, reducing the impact on processing after adding this device.

The invention discloses a filling gun capable of achieving safe filling. The filling gun adopts a piston power operation mechanism with double power cylinders and three cavities to drive an inner gun barrel and an outer gun barrel to do relative reciprocating motion, gun feeding and gun withdrawing operation of the filling gun is executed in a most reasonable pneumatic action mode, and further, a clamping mechanism and an air pressure adjusting hole are arranged in a matched mode, a power source pressure intensity adjusting control valve and the locking structure of the clamping mechanism enable clamping jaws of the clamping structure and an inner gun barrel gun head to be stably locked in the gun feeding action process of the filling gun, it is guaranteed that the safety accident of gun collapse does not occur in the gun feeding and withdrawing processes of the filling gun, and the continuous filling capacity of the power cylinders is improved.

The invention discloses vehicle rushing preventing equipment of a check point. The rushing preventing equipment comprises a metal structure main body, a transmission gear, a rotating device, a self-locking braking device, automatic/manual and wireless control equipment, and an automatic acousto-optic caution device, wherein the metal structure main body is of a hollow structure; the transmission gear is mounted on one sidewall of the metal structure main body; the rotating device is connected with the transmission gear and fixedly connected with the two sidewalls of the metal structure main body; the self-locking braking device is arranged in the metal structure main body, and one end of the self-locking braking device penetrates through the metal structure main body and is connected with the transmission device; and the automatic/manual and wireless control equipment is connected with the self-locking braking device and the automatic acousto-optic caution device. The vehicle rushing preventing equipment of the check point is easy to mount and capable of quickly and effectively performing forced safe traffic control on vehicles violating laws and rules by intelligent control, so that potential safety accident hazards are eliminated, the social harmony and stability coefficient is improved, and harm of people, damage of vehicles and loss of properties are greatly reduced.

The invention discloses an on-line detection system for a main speed reducer assembly test. The on-line detection system comprises a measurement and control cabinet, a plurality of PLC switching cabinets and a detection device; the measurement and control cabinet comprises an industrial personal computer and a display; the PLC transfer cabinet comprises a PLC module and a signal conditioning module; the detection device comprises a noise sensor, an infrared temperature measurement sensor and a pressure sensor which are respectively installed at corresponding positions on a test bed for testinga main speed reducer assembly and connected with the input end of a signal conditioning module, the output end of the signal conditioning module is connected with a PLC module, and the PLC module anda display are both connected with an industrial personal computer. The system realizes the functions of online acquisition, storage, printing and the like of test data, the test data is real, and theinfluence of human factors is avoided; abnormal phenomena in the test process can be timely alarmed, so that the expansion of accidents is avoided; meanwhile, an operator does not need to monitor ina test room, man-machine isolation is achieved, potential safety hazards are eradicated, and the intrinsic safety of the process is improved.

An embodiment of the invention relates to an unmanned vehicle network anomaly processing method, device and equipment and a storage medium. The method comprises the steps: network signal intensity isdetected in a process that an unmanned vehicle drives according to a first planned path; when it is detected that the network signal strength is smaller than or equal to the first set strength, the unmanned vehicle is controlled to run to an area with the network signal strength larger than or equal to the second set strength; a path in the area of which the network signal strength is greater thanor equal to the second set strength is re-planned to obtain a second planned path, and the second planned path does not include the area of which the network signal strength is less than or equal tothe first set strength; the unmanned vehicle is controlled to travel on the basis of the second planned path, so as to solve the problems that once a conventional unmanned vehicle travels to an areawith an abnormal network, long-time parking is needed, the vehicle operation efficiency is seriously influenced, and safety accidents are easily and further caused.

The invention relates to a flexible reed grabbing device and method. The device comprises flexible grabbing mechanisms and a cross beam, the flexible grabbing mechanisms and the cross beam are arranged on a ship body, the flexible grabbing mechanisms are symmetrically arranged at two sides of the ship body, and the cross beam is connected with the flexible grabbing mechanisms at two sides of the ship body and is used for separating and clamping reeds. The reeds in lakeside water and on the shore can be grabbed in a variable-distance manner through the device, the device can be guaranteed to beused under the condition that the terrain of the lakeside shore is complex, the device can achieve change of the horizontal position and the vertical position, the reed separating and clamping function has better maneuverability, driving parts are electrically driven, pollution is avoided, the structure is simple, manufacturing cost is low, practicability is high, and operation is easy and convenient.

The invention discloses a fan tower hoisting tool and hoisting method. The fan tower hoisting tool comprises a compensation hoisting unit and a telescopic hoisting arm unit, the compensation hoisting unit is arranged above the telescopic hoisting arm unit, the compensation hoisting unit is connected with a hoisting device, and the lower end of the compensation hoisting unit is connected with the telescopic hoisting arm unit; the compensation hoisting unit is used for compensating the inclined motion of the telescopic suspension arm unit and keeping the telescopic suspension arm unit horizontal; and the telescopic suspension arm unit is connected with a tower to be mounted. According to the fan tower hoisting tool and hoisting method, the arm length can be adjusted to adapt to tower of different sizes, moreover, compensation can be provided during hoisting, and the towers are prevented from inclining.

The invention discloses an automatic control electric spark source device applied in the field of engineering survey and detection. The automatic control electric spark source device comprises a relay, wherein one end of the output end of the relay is connected with the live wire of an AC 220V power supply, the other end of the output end of the relay is connected with one end of the input end ofan AC transformer; the control end of the relay is connected to a controller through a circuit; the neutral line of the AC 220V power supply is connected to the other end of the input end of the AC transformer; the output end of the AC transformer is connected to the input end of a voltage doubling device; the output end of the voltage doubling device is directly connected to the input end of a high-voltage energy storage capacitor; and the controller controls the on-off state of the relay so as to realize a charging control function of the high-voltage energy storage capacitor. The automaticcontrol electric spark source device can automatically control charging and discharging, can greatly improve the field exploration efficiency, and reduce the labor cost. A synchronous trigger signal can trigger equipment such as a sonic instrument, a seismograph, a TSP instrument and the like, can be used in conjunction with the sonic instrument, the seismograph, the TSP and the like, avoids the idleness of the equipment and enhances the usage rate of the equipment.

The invention discloses a locking assembly, a vehicle lock and a locking control method thereof. A rotary outputting piece is locked by a stable triangular supporting structure formed by a sliding first lock piece and an oscillating second lock piece, the second lock piece effectively restrains the first lock piece, and reliability of locking and unlocking of a product is realized. The whole locking assembly is controlled by the same switch piece, and a control process is compact and effectively. From a mechanical structure and an automatic control method, mistaken locking operation of a rotary piece during running is avoided effectively, locking reliability is high, the locking assembly is simple and convenient to use, the whole rotary locking assembly can be sealed and fixed in a vehiclelock shell, and the locking assembly is applied to transmission machinery of bicycles, electric bicycles, motorcycles and even light automobiles.

The invention discloses a check valve for preventing leakage of an oil tank, which relates to the technical field of manufacture of valves and comprises an upper cover, a bottom bracket, a valve core, a valve sheet, a clamp and a spring, wherein the upper cover is connected with the upper end of a valve body; the bottom bracket is connected with the lower end of the valve body; the spring is arranged between the valve core and the bottom bracket; the valve sheet is fixedly connected to the upper top end of the valve core; the clamp is sleeved on the upper part of the valve body; a through hole is arranged in the center of the upper end surface of the valve body; through holes are respectively arranged in the centers of the upper cover and the bottom bracket; a metal head valve is arranged between the upper end surface of the valve body and the upper cover; the metal head valve is a circular plate; a circular boss is arranged in the middle of the circular plate; at least two through holes and at least three convex claws are uniformly distributed on the circular plate on the periphery of the circular boss; the height of the convex claws is larger than that of the boss; and the circular boss and the convex claws face the valve body. The check valve can be used for cutting an oil path in proper time, eliminating hidden danger of vehicle safety accidents caused by leakage of oil, and reducing the volatilization of gasoline so that the automobile emission achieves national standards.

The invention discloses a charging pasting machine which comprises an alternating current supply system, a direct current supply system, a direct current motor and a control circuit, wherein the alternating current supply system comprises an alternating current power supply and an alternating current/direct current change-over switch power supply; after the alternating current power supply is converted to a direct current power supply by the alternating current/direct current change-over switch power supply, the direct current power supply is electrically connected with the direct current motor; the direct current supply system comprises a storage battery; the storage battery is electrically connected with the direct current motor; and the control circuit allows only one of the alternating current supply system and the direct current supply system to supply power to the direct current motor at the same time. The light charging pasting machine can operate under the condition of an external power supply or without the external power supply, saves energy and electricity, and is safe, light in overall weight and easy to move.