1117results about How to "Avoid personal injury" patented technology

A system for providing wireless, charging power and/or primary power to electronic/electrical devices is described whereby microwave energy is employed. Microwave energy is focused by a power transmitter comprising one or more adaptively-phased microwave array emitters onto a device to be charged. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power. A locator signal generated by the device to be charged is analyzed by the system to determine the location of the device to be charged relative to the microwave array emitters, permitting the microwave energy to be directly specifically towards the device to be charged. Backscatter detectors respond to backscatter energy reflected off of any obstacle between the device to be charged and the microwave array emitters. Power to any obstructed microwave array emitter is reduced until the obstruction is removed. Optionally, data can be modulated onto microwave energy beams produced by the array emitters and demodulated by the device, thereby providing means of data communication from the power transmitter to the device. Similarly, data can be modulated onto the locator signal and demodulated in the power transmitter, thereby providing means of data communication from the device to the power transmitter.

The invention relates to a full automatic glass curtain wall cleaning machine, and solves the problems that the speed for cleaning a building bit by bit by using a brush when a person is hoisted to slide vertically by using a rope from a roof is low, the cleaning is unclean and the risk is big, the casualty is easily caused, the cleaning sewage falling around from the high position causes secondary pollution to the environment, and the like of the prior art. In order to solve the technical problems, the invention adopts the technical proposal key that the full automatic glass curtain wall cleaning machine consists of devices of hanging and walking, lifting, brushing, scraping, electric baking and drying, and the like. The full automatic glass curtain wall cleaning machine can clean automatically and does not use manpower to operate so as to remarkably reduce the labor intensity of workers and effectively prevent accidents of personal injury. The full automatic glass curtain wall cleaning machine has high automation degree, greatly improves the working efficiency and working quality, avoids environment pollution caused by manpower cleaning, and saves the cost.

The invention discloses a non-contact type high-power energy transmission system which comprises a transmitting end, a receiving end, a load, a standby circuit, an energy collecting and converting unit, and the like, wherein a feedback circuit adjusts the switching frequency of a switching tube by detecting the change of original edge resonant coil current and resonant frequency so that the switching frequency is consistent with the resonant frequency of the system; and by carrying out proper phase compensation on the drive voltage of the switching tube, the circulation generated in an inverting circuit and caused by switching-off delay of the switching tube can be eliminated. The standby circuit can completely eliminate the power supply of a main circuit by a relay. When the load is removed, the circuit can automatically enter a standby state. When the load is charged, the standby circuit can wirelessly detect the existence of the load and automatically start the main circuit to enter a working state. A heat energy collecting and converting system converts heat energy generated in the converting circuit and a switching circuit into available electric energy by thermoelectric materials and feeds back the electric energy to the power input of the main circuit again and realizes the recycling of energy.

The invention relates to a two-door gate inhibition system and a control method, based on biology character recognize technique, comprising a biology character gate inhibition device, a controller, an electric lock, a switch box, a biology character register terminal, and a gate inhibition system server, wherein the biology character register terminal registers the biology character information, to record and build database for general biology character and alarm biology character, when passes two doors, the gate inhibition device checks and receives biology character, to extract and compare the biology character information, and when the biology character information is authorized one, to send an outer door open request to the controller, and when the biology character information is alarm biology character, send out an outdoor door open request and an alarm signal. The invention provides forced alarm method, to open door with starting alarm response, to alarm on time and protect owner.

The invention belongs to the technical field of building construction tools, and particularly relates to a multifunctional safety protection device for high-rise building construction. Aiming at the problem that existing safety protection devices are unitary in function, the following scheme is put forward, the safety protection device is mounted on a wall and comprises a supporting plate, two supporting rods are hinged in the middle of the bottom end of the supporting plate and respectively positioned on two sides of the supporting plate, the other end of each of the supporting rods and the supporting plate is connected with a fixing plate, the supporting rods and the fixing plates are hinged mutually, the supporting plate and the fixing plates are welded mutually, the fixing plates are fixed on the wall through first screws, and a separating frame and an extensible stand which are perpendicular to the supporting plate are arranged at the top end of the same respectively. The multifunctional safety protection device is diversified in function, falling of workers is prevented, damage caused to construction personnel by falling silt or cobble is prevented, elastic support can be provided to personnel who slips and falls, and personal injury caused to building personnel or irrelevant personnel by objects falling from high altitudes is prevented.

The invention provides a health state diagnosis early-warning circuit and method of an electric automobile high-voltage system. The circuit comprises an insulation resistance detection module, a connecting resistance detection module, a battery management module, a motor control module, a pre-charging monitoring module, a relay monitoring module and a control computing module. The modules are used for detecting an insulation resistance value between a serial-connection battery pack of an electric automobile and an automobile body, a connecting resistance value of a high-voltage circuit, the health state, voltage and current of the serial-connection battery pack, a fault grade of a driving motor system, voltage and current of the direct-current input end of the driving motor system, a fault grade of a pre-charging circuit and a fault grade of a relay on line. Quantified comprehensive representation and on-line recognition are achieved for the health state of the high-voltage system, and therefore high-voltage safe management is performed on the safety state of the electric automobile high-voltage system more scientifically and reasonably.

The invention discloses a precise indexing clamp special for turning, and belongs to clamps special for turning in the technical field of machining equipment. According to the precise indexing clamp special for turning, multipoint stress is achieved, and the clamp is suitable for clamping workpieces of multiple sizes. According to the technical scheme, the clamp comprises a clamp body, and a cross sliding groove is formed in the clamp body; a clamping jaw is arranged in each sliding groove body of the cross sliding groove, and a clamping jaw drive mechanism is arranged on the back face of the clamp body and comprises a large conical gear and a plurality of sets of lead screws; the large conical gear is mounted on the clamp body, and each lead screw is arranged at the position corresponding to the position of the corresponding clamping jaw; the lead screws are sleeved with threaded holes of the clamping jaws, and are in threaded connection with the clamping jaws; and a small conical gear is arranged on one side, close to the large conical gear, of each lead screw, and the small conical gears on the lead screws are meshed with the large conical gear. The precise indexing clamp is suitable for being used in turning.

The invention discloses a non-stick overvoltage and under-voltage protector with a leakage protection function. The non-stick overvoltage and under-voltage protector comprises a box body and a control unit, wherein the control unit comprises a power circuit (1), a current sampling circuit (2), a voltage sampling circuit (3), a microprocessor (4), a key processing circuit (5), a working state indicating circuit (6), a magnetic relay driving circuit (7), a magnetic latching relay (8), a leakage mutual inductor (9), an energy-storage capacitor (10) and a chip peripheral circuit (11). According to the non-stick overvoltage and under-voltage protector with the leakage protection function provided by the invention, a power supply is switched on automatically when the power voltage restores to a normal voltage range after an under-voltage protection action is taken, so that the continuity of power supply is ensured, and the power supply quality is ensured; and after a leakage protection action is taken, the power supply is switched on automatically after a fault is cleared and a manual key is pressed for confirming, the power supply continuity is ensured, and personal safety is protected.

The invention discloses an automatic feeding device for core ring punching and based on a rotary grinding wheel forming machine. The automatic feeding device comprises a main frame body, a rotary disk type core ring stack is arranged on the main frame body, a vertical lifting type core ring conveying mechanism used for driving core rings to move upwards along a string column to achieve a core ring conveying function is arranged on the lateral side of the main frame body, horizontal reciprocating type core ring feeding mechanism is arranged at the top of the main frame body, the horizontal reciprocating type core ring feeding mechanism is used for placing the core rings on the rotary disk type core ring stack into punching work stations of the grinding wheel forming machine, and accordingly the task of automatically feeding the core rings is finished. The automatic feeding device is composed of the rotary disk type core ring stack, the vertical lifting type core ring conveying mechanism and the horizontal reciprocating type core ring feeding mechanism. The automatic feeding device can finish actions of jacking up the core rings, sucking the core rings, horizontally moving the core rings and releasing the core rings. Thus, the automatic feeding device achieves automatic feeding operation of the core rings, effectively avoids personal injury to operators and remarkably improves production efficiency of grinding wheels.

A unique roadworthy boom trailer comprises a roadworthy wheeled chassis, four independently-adjustable trailer-leveling motorized legs attached to the bottom of the chassis, pneumatic-tool compressor built in the chassis, turret assembly attached to the top of the chassis, and on-site-extendable-interchangeable quick-release assemblies of boom, ladder, and catwalk rotatably attached to the turret assembly. The ladder assembly has safety rungs for safety cables to be hooked thereon. The catwalk assembly has adjustable telescopic safety handrails. The unique roadworthy boom trailer can work with suspension-cable-or-truss-type bridges, low-or-high-power-line bridges, short-or-tall-supporting-column bridges, single-or-multiple-lane bridges, and regular-or-rail-road bridges. The catwalk assembly can have multiple additional catwalk assemblies attached thereto to extend its width or length to generally equal the width or length of a bridge, respectively. The catwalk assembly is sized to operate entirely within the width of a sidewalk, and to lift and shift equipment and personnel through narrow openings or into nooks both over and under bridges.

The invention provides an oil-tea camellia picker which comprises a hollow rod and a sleeve fixedly installed at the top end of the hollow rod. The oil-tea camellia picker further comprises a transmission unit, a guide unit, a reset unit and a shearing unit. The hollow rod is an extensible rod and is composed of an inner tube and an outer tube sleeved on the inner tube. The guide unit comprises a guide rod, a guide block and a connecting piece. The reset unit comprises a pressure spring and a retaining and blocking part, wherein the pressure ring is located between the connecting piece and the guide block and sleeved on the guide rod, and the retaining and blocking part is composed of a limiting rod and a limiting pin. The shearing unit comprises a clamp shearing part and two cutters with cutting edges opposite to each other, wherein the clamp shearing part is in linkage with the guide rod and a rope, a shearing opening of the clamp shearing part folds inwards when the guide rod slides downwards, and the shearing opening expands outwards when the guide rod slides upwards. The oil-tea camellia picker overcomes shortcomings in the prior art, and is simple in structure, convenient to use, high in safety factor, and capable of efficiently and quickly picking oil-tea camellias.

The invention relates to the related technical field of power equipment, and particularly relates to a safe distance detection and early-warning device and method for power construction equipment. The safe distance detection and early-warning device comprises a sensor part and a main control equipment part, wherein the sensor part comprises a plurality of wireless distance measuring sensors arranged on a moving mechanism, the main control equipment part comprises a central processing module, a wireless data receiving module and a warning module, the wireless data receiving module is connected with the wireless distance measuring sensors, and the central processing module is respectively connected with the wireless data receiving module and an audible-visual warning module. According to the safe distance detection and early-warning device and method for power construction equipment, disclosed by the invention, the occurrence of power failures and human casualty accidents because the safe distance between the moving mechanism and an obstacle is insufficient or the moving mechanism and the obstacle collide in the process of construction in a high electric field environment of high-tension transmission lines is avoided.

The invention provides a user electric equipment safety assessment method based on an improvement section analytic hierarchy process. The method comprises the following steps that a safety assessment index system of user electric equipment is established, and an expert grades a safety assessment index; the indeterminacy value of a judgment section is converted into a determinacy type value with the improvement section analytic hierarchy process; a section judgment matrix is constructed, and the maximum eigenvalue and eigenvector of the matrix are calculated; consistency of the section judgment matrix is tested, and weights of all safety assessment indexes are determined. According to the user electric equipment safety assessment method based on the improvement section analytic hierarchy process, the user power utilization safety can be effectively assessed through the assessment result, and a powerful basis is provided for preventing the human casualty accident of power utilization safety; compared with a common analytic hierarchy process calculation result, the feasibility of the method is shown, and a certain reference is provided for the user power equipment safety assessment.

The invention discloses a driving face self-moving temporary support hydraulic support and a support method thereof. The driving face self-moving temporary support hydraulic support comprises a tetrastyle inner support, a tetrastyle outer support and a hydraulic system. The inner support and the outer support are both made of two transverse top beams, two transverse bottom beams and four elastic stand columns, a plurality of longitudinal beams are arranged on the two transverse top beams to form a top support of a supporting top plate, the tetrastyle inner support is embedded with the outer support to form a pull-draw type combined support, the hydraulic system enables the inner support and the outer support to be capable of lifting and mutually pulling and drawing, and forward movement of the hydraulic support along a working face is achieved. The driving face self-moving temporary support hydraulic support is a novel driving face mechanization temporary support device. The support is a tetrastyle support and can automatically move so that supporting intensity and supporting areas of the temporary support are improved, tunneling construction speed and safety can be substantially improved, and technical supports for rapid and safe tunneling are achieved.

The invention provides a reminding method and device. The method is applied to a first communication terminal and comprises steps of obtaining a communication state of the first communication terminal; judging whether the communication state meets a first preparatory condition or not and obtaining a first judgment result; obtaining environmental parameter information corresponding to the first communication terminal when the communication state meets the first preparatory condition according to the first judgment result; judging whether environmental parameters meet a second preparatory condition or not and obtaining a second judgment result; and outputs reminding information when the environmental parameters meet the second preparatory condition according to the second judgment result. The method can reduce personal injury or dangerous matters caused by terminal communication under the environment that communication is not appropriate.

A brake beam including means for allowing the brake head to be replaced without effort and to include replaceable brake heads.

The invention relates to an arc-shaped motor-driven numerical control electric screw press, which comprises a machine body provided with a cross beam. The machine body is provided with a machine body guide rail, a slider hammerhead, a thrust bearing, a copper nut and a main screw. The machine body guide rail is fixedly arranged on the machine body; the slider hammerhead is located at the lower part of the cross beam and can slide on the machine body guide rail; the thrust bearing is fixedly arranged at the bottom part of the cross beam; the copper nut is fixedly arranged on the slider hammerhead; one end of the main screw and the copper nut form a screw pair to drive the slider hammerhead to do a linear motion; and the top part of the cross beam is provided with an arc-shaped motor. The arc-shaped motor comprises a flywheel rotor and a stator module, wherein the stator module is fixedly arranged at the top part of the cross beam, and the other end of the main screw is fixedly arranged at the rotating axis of the flywheel rotor. The bottom part of the flywheel rotor is also provided with a brake, and the flywheel rotor is braked by the brake to brake the main screw to rotate. The arc-shaped motor-driven numerical control electric screw press provided by the invention has the characteristics that the maintenance is convenient, the energy consumption is low, the control precision is more accurate and the safety is higher.

The invention provides an anti-poison intelligent window, relates to a window capable of automatically opening when coal gas is in a room, and overcomes the defect that the prior gas detection device only can detect dangers, but cannot eliminate the dangers. The anti-poison intelligent window comprises a window body, a gas detection sensor, a measuring circuit, an FPGA circuit board, a stepping motor, a mechanical window opening mechanism and a No.1 pressure sensor; a signal output end of the gas detection sensor is connected with a signal input end of the measuring circuit; a signal output end of the measuring circuit is connected with a signal detection input end of the FPGA circuit board; a step-by-step impulse signal output end of the FPGA circuit board is connected with a power supply input end of the stepping motor; a motor output shaft of the stepping motor drives an opening and closing sash on the window body through the mechanical window opening mechanism; and an open stopping position corresponding to the opening and closing sash is provided with the No.1 pressure sensor, and a signal output end of the No.1 pressure sensor is connected with a signal input end of the FPGA circuit board to output a control signal for stopping the stepping motor.