178results about How to "Play the role of "double insurance"" patented technology

The invention discloses a self-help lift safety gear comprising an original safety gear of a lift. The original safety gear comprises a frame support, a funnelled groove is arranged in the support, and a lift lead rail is located in the groove; both sides of the lift lead rail in the support are provided with wedge blocks matched with the lift lead rail and the groove, and the wedge blocks are connected with a speed governor of a lifting and pulling mechanism. The invention is characterized in that a set of safety gears are added below the original safety gear; the safety gear is connected with the lower safety gears in series from top to bottom; a retractor device controlled by a control system is arranged between the safety gear and the lower safety gears. The lower safety gears comprise a lower frame-shaped support in which a lower groove is arranged; the lift lead rail is arranged in the lower groove; two sides of the lift lead rail in the lower support are provided with lower wedge blocks matched with the lift lead rail and the lower groove, and the lower wedge blocks are also connected with the speed governor rope of the lifting and pulling mechanism. The self-help lift safety gear can hold the lift lead rail to gradually climb when the lift is in a failure, and thus, a lift car can climb to the door opening position to open the lift car door so as to reach the self-help purpose.

The invention relates to a kelp harvesting and sorting method. In the method, a plurality of parallel floating ropes with floats are arranged, lifting ropes are hung on the floating ropes at certain intervals, and each lifting rope is composed of an upper lifting rope segment and a lower lifting rope segment which are connected through a detachable rope fastener; the lower lifting rope segments oncorresponding portions of the adjacent floating ropes are connected through cultivating ropes, kelp is hung on the cultivating ropes, and the adjacent cultivating ropes are connected end to end intoa whole through connecting ropes; a kelp harvesting and sorting robot walks between the adjacent floating ropes, the floating ropes penetrate through screw propulsion steppers on both sides of the kelp harvesting and sorting robot, unfastening devices on the kelp harvesting and sorting robot loosen the rope fasteners one by one to make the cultivating ropes and the kelp on the cultivating ropes fall onto a kelp sorting machine, a lifting mechanism lifts the cultivating ropes and the kelp on the cultivating ropes and rotates to a kelp stacking area of a transport ship on one side, and the kelpcultivating ropes are wound around chain hooks on the kelp sorting machine and fall into the kelp stacking area.

The invention provides a double-arm feeding and discharging manipulator, and belongs to a manipulator. The double-arm feeding and discharging manipulator comprises a base, wherein two manipulator bodies which are the same are arranged on the base in parallel; each manipulator body comprises a fixed arm, a first rotating arm, a second rotating arm and a manipulator gripper connected to the second rotating arm; each manipulator gripper comprises a support, a hollow rotating shaft, an upper cover plate and a lower cover plate; each support is connected with the corresponding second rotating arm; each hollow rotating shaft is rotatably connected with the corresponding support through a first oil-free lining; each upper cover plate and the corresponding lower cover plate are connected with an end of the corresponding hollow rotating shaft together; two arc-shaped clamping fingers which are clamped on side surfaces of a sheet disc-shaped workpiece are hinged to a position between each upper cover plate and the corresponding lower cover plate; each two arc-shaped clamping fingers are connected with a corresponding first driving mechanism which is used for driving the two arc-shaped clamping fingers to open and close; and each support is provided with a second driving mechanism which drives the corresponding hollow rotating shaft to rotate. In a feeding and discharging process of sheet disc-shaped workpieces, precision of the upper surfaces and the lower surfaces of the sheet disc-shaped workpieces cannot be affected, furthermore, overturning action can be finished, and feeding and discharging can be implemented simultaneously.

The invention relates to a nickel-plated copper material and a preparation method and application thereof, and belongs to the technical field of battery manufacturing. The nickel-plated copper material sequentially comprises fine copper, a copper-nickel alloy layer, a dull nickel layer and a high-weldability nickel layer from inside to outside. The thickness of the copper-nickel alloy layer ranges from 0.2 micrometer to 0.6 micrometer. The thickness of the dull nickel layer ranges from 0.2 micrometer to 0.6 micrometer. The thickness of the high-weldability nickel layer ranges from 0.6 micrometer to 2.6 micrometers. The preparation method includes the steps that the activated fine copper serves as a base material; firstly, low current is supplied by a pulse power source to electrically deposit the dull nickel layer; then, direct current nickel plating at high current density is conducted in an electrolyte with high-weldability nickel plating additives; and after electroplating is finished, in combination with annealing treatment and dehydrogenation thermal treatment matched with the electroplating process, the nickel-plated copper material which is strong in coating binding force, resistant to corrosion and folding and easy to weld is obtained. When the prepared nickel-plated copper material is used for nickel-plated copper strip electrode tabs of large-magnifying-power lithium ion batteries, the performance of the electrode tabs are far superior to the performance of similar products. The preparation process is simple and controllable, and industrial production is conveniently achieved.

The invention discloses a general combined type stringing pulley. The pulley comprises a main hanging board, a bottom board, two side columns and a principal axis, wherein primary and secondary hooks are arranged at the top of the main hanging board; conductor wheels penetrate through the principal axis; the side column at one side is movably connected with the main hanging board via a primary connection board and a secondary connection board; the main hanging board and the bottom board are connected with other connection parts of the side columns with bolts; the principal axis is movably arranged on the two side columns and is fastened by nuts; a row of blocking wheel carrier connecting holes with space equal to the width of the conductor wheels are arranged at the lower end of the main hanging board; blocking wheels corresponding to the upper edges of the conductor wheels are pairwise arranged at the two sides of the conductor wheels respectively; the blocking wheels are fixed belowthe main hanging board with fixed bolts via blocking wheel carriers; and supporting seats with anchor holes are arranged at the two ends of the bottom board. The pulley can be used for stringing various transmission lines and various quantities of split conductors. Stringing of all split quantities of transmission lines can be satisfied as long as the construction unit only manufactures a pulley and then increases the quantity of the conductor wheels according to the quantity of the split conductors.

The invention discloses a mounting device of a street lamp. The mounting device is characterized by comprising a base, a supporting piece I, a supporting piece II, a driving device I and a driving device II, wherein the base is in a concave shape, one end of the supporting piece I is hinged to the base, the other end of the supporting piece I is hinged to one end of the supporting piece II, one end of the driving device I is hinged to the base, the other end of the driving device I is hinged to the supporting piece I, the driving device I can drive the supporting piece I to rotate, and the twoends of the driving device II are hinged to the supporting piece I and the supporting piece II. The invention further discloses a mounting method of the street lamp. According to the mounting deviceand the mounting method, the street lamp can be mounted, the safety of the mounting process is higher, accidents can be effectively avoided, and the safety of workers is guaranteed.

The invention provides an unmanned vehicle braking control system and method. The unmanned vehicle braking control system comprises an electric cylinder, a braking pipeline system, a data collection card, a controller, a decision making layer, a wheel speed sensor for detecting vehicle speed and an oil pressure meter for detecting braking pressure of the braking pipeline system, the data collection card is used for collecting data of the wheel speed sensor and the oil pressure meter, the decision making layer sends an expected vehicle speed signal to the controller, and the controller is used for collecting data transmitted by the decision making layer and data of the oil pressure meter. Braking effect controllable in braking force is accurately realized by collecting current vehicle speed and current braking pressure, comparing them with expected vehicle speed and expected braking pressure and controlling extension and contraction of the electric cylinder.

The invention relates to an upper suspended window safety device of a hook-type curtain wall, mainly comprising an opened sash hook, a semi-cylindrical rotating shaft and a fixed frame arc groove fixed at the lower end of an aluminium-alloy curtain wall opened sash upper frame beam, wherein the opened sash hook is positioned at the upper part of the glass and aluminium-alloy opened sash plate block; and the fixed frame arc groove is provided with the rotatable semi-cylindrical rotating shaft which is matched with the fixed frame arc groove. One edge of the fixed frame arc groove is provided with a guide wall which is convenient for installation of the opened sash hook, and the other edge thereof is provided with a vertical resistance wall for preventing the opened sash hook from sliding out accidentally; and a limiting block is arranged above the fixed frame guide wall. The upper suspended window safety device is safe and reliable, has reasonable stressing, is convenient to assemble and disassemble the curtain wall opened sash, can prevent the upper suspended window on the hook-type curtain wall from being unhooked accidentally in use, is suitable for being used in various upper suspended windows of the curtain walls of member-type curtain walls such as a hidden-frame curtain wall, a transverse-exposed and vertical-hidden frame curtain wall, a transverse-hidden and vertical-exposed frame curtain wall and an exposed-frame curtain wall and the like, and simultaneously is also suitable for being used in various upper suspended windows of the unit-type curtain walls.

The invention relates to a safety device for protecting automobile drivers, comprising a front bumper, an automobile body and a protector. The protector comprises a sensor, a switch, a power supply, wires, an electromagnetic tractor, seats, a slide and wheels; the sensor and the switch are disposed at the rear of the front bumper; the sensor controls the switch; the switch, the power supply and the electromagnetic switch are serially connected through the wires; the slide and the electromagnetic tractor are both fix on a chassis of the automobile body; the slide is located in the front of the electromagnetic tractor; the seat moves on the slide; the bottom of each foot of each seat is provided with one wheel; a traction arm of the electromagnetic tractor hooks to the rear of the certain seat. At the moment of automobile crash, the sensor is triggered to switch on the circuit through the switch, the electromagnetic tractor runs, the traction arm of the electromagnetic tractor pulls the seat back quickly by a certain distance; injury of the driver caused by the crash is reduced as far as possible. The safety device can be used with an automobile airbag system to allow double safety.

The present invention relates to a heat-melting, butt joint and electric-heating melting welding compound connecting method for a plastic composite pipe and pertains to the technical field of pipe connection. The method mainly comprises the technique processes: firstly, an electric-heating melting pipe fitting is pre-sleeved with a pipe I, then the pipe I sleeved with the electric-heating melting pipe fitting is hot-melted and butt jointed with two ends of a pipe II, and the height of the external surface of a butt joint welding seam of a joint become the same as that of the surfaces of the pipe I and the pipe II after treatment. The electric-heating melting pipe fitting is upwardly pushed by the pipe I to the joint between the pipe I and the pipe II after cooling, and the butt joint welding seam of the joint between the pipe I and the pipe II is positioned in the middle of the electric-heating melting pipe fitting, and finally the electric-heating melting welding is carried out. The compression strength and the sealing performance of a pipeline, by adopting the method of the present invention, are commonly supported by the pipes and the pipe fittings, the role in dual guaranteeing is played, and the strength and the sealing performance of the pipeline are all greatly enhanced.

The invention provides a method for controlling printing sleeving alignment. The method comprises the following steps: 1), presetting a reference position, the distance from each nozzle module to the reference position and the relative distance of each nozzle module to an initial nozzle module, starting printing of this time, and outputting coding pulse signals in real time; 2), according to the coding pulse signals output in real time, determining whether the initial nozzle module passes through the distance from the initial nozzle module to the reference position, and if so, enabling the initial nozzle module to start printing; and 3), according to the coding pulse signals output in real time, respectively determining whether other n-1 nozzle modules pass through the distances from the corresponding nozzle modules to the reference position, if it is determined that one of the nozzle modules passes through the distance from itself to the reference position, continuing determining whether the nozzle module passes through the distance from itself to the initial nozzle module, and if so, enabling the nozzle module to start printing until the other n-1 nozzle modules respectively start printing. The invention correspondingly provides an apparatus for controlling printing sleeving alignment. According to the invention, the problem of unaligned sleeving printing of different color-surface images can be reduced.

The invention relates to a novel hanging arm applied to a television set hanging frame. The novel hanging arm comprises a hanging arm body and a locking sheet, wherein the hanging arm body is provided with a connection arm, a hook and the locking sheet; the hook is provided with a first hook part while the locking sheet is provided with a second hook part; an elastic part is arranged on the locking sheet; the novel hanging arm is characterized in that a third hook part with an opening formed upwardly and a height being lower than that of the second hook part is also arranged at the position near the locking sheet of the connection arm; the locking sheet is pulled in a direction far away from a wallboard of the connection arm to move down, namely the bottom of the wallboard can completely fall into the third hook part and cannot be separated from the third hook part under the locking action of the second hook part. Compared with the prior art, the novel hanging arm has the advantages that the limitation that only the first hook part of the hook at the upper end of the connection arm and the second hook part of the locking sheet can be used for locking the wallboard after the television set is mounted in the prior art is broken through; when the upper part of the connection arm is pulled at a certain angle in a direction far away from the wallboard, the wallboard can fall into the third hook part along upward movement of the hanging arm and the locking sheet can lock the wallboard again at the same time, so that the dual-insurance effect can be achieved.

The invention discloses a clamping device for a rubber belt. The clamping device comprises a fixed support, wherein a rubber belt clamper is installed on the fixed support; the rubber belt clamper comprises an upper clamping beam, a middle clamping beam and a lower clamping beam; a passing hole for an upward rubber belt is arranged between the upper clamping beam and the middle clamping beam; a passing hole for a downward rubber belt is arranged between the middle clamping beam and the lower clamping beam; the upper clamping beam and the middle clamping beam, as well as the middle clamping beam and the lower clamping beam are connected via fasteners; and the upper clamping beam, the middle clamping beam or the lower clamping beam is installed on the fixed support. The clamping device for the rubber belt disclosed by the invention has the advantages of being practical, time-saving and labor-saving, low in cost, good in safety and the like, and can greatly increase the installation and placement speeds of the rubber belt.

The invention discloses a portable electric soldering iron, aiming to solve the problems of poor flexibility and safety of the traditional electric soldering iron. In order to realize the purpose, the invention discloses a portable electric soldering iron which comprises a soldering iron and a sheath, wherein a lithium battery is sheathed in the sheath; the soldering iron is inserted on the sheath, a heating assembly for heating the soldering iron is arranged in the soldering iron, and the heating assembly is connected to or disconnected from the lithium battery through a push type switch. The activity range of the portable electric soldering iron provided by the invention is not limited, the lithium battery is used for replacing the traditional ordinary battery, so that the service life is long, and the defect that the traditional electric soldering iron is continuously discharged in use is overcome. Meanwhile, the push type control switch with double safety functions is also configured, and the use becomes safer.

The invention relates to a high water-proof high service life LED (light-emitting diode) soft lamp belt and a manufacturing method thereof. The high water-proof high service life LED softness lamp belt comprises a flexible circuit board, an LED luminophor which is arranged on the flexible circuit board and is connected through a wire, a current limiting resistor and a waterproof glue used for covering the flexible circuit board, the LED luminophor and the current limiting resistor; and the high water-proof high service life LED soft lamp belt is characterized in that an outermost layer of the LED soft lamp belt is a soft transparent sleeve used for closely covering the whole LED soft lamp belt, and the surface of the waterproof glue is closely clung to the inner wall of the soft transparent sleeve. The manufacturing method of the high water-proof high service life LED soft lamp belt comprises the following steps of: manufacturing an LED soft lamp belt semi-finished product, implementing encapsulating compound on the semi-finished product, adopting a high pressure draft technology to blow the LED soft lamp belt in the soft transparent sleeve, and carrying out thermocompression constraction. According to the product, the waterproof quality is good, the better softness and transparancy are kept for a long time, the luminescence of the soft lamp belt is bright, and the service life is prolonged.

An automobile drunk-driving prevention and self-rescuing safety system comprises at least one contact sensor, a breathing sensor, an alcohol content measuring instrument, a steering-wheel self-locking mechanism, a control unit and an automatic parking system. The contact sensor is used for sensing a hand sweat alcohol signal. The breathing sensor is used for sensing a breathing alcohol signal. The alcohol content measuring instrument is used for receiving and processing the hand sweat alcohol signal and the breathing alcohol signal so as to obtain a first alcohol content value and a second alcohol content value. One of the first alcohol content value and the second alcohol content value is used as an evidence for judging the drunk driving of a driver, when the alcohol content which is used as the evidence for judging the drunk driving of the driver is greater than or equal to a specified limit value, the control unit controls the automatic parking system to start so as to automatically park the car, and then the control unit controls the steering-wheel self-locking mechanism to lock a steering wheel. The automobile drunk-driving prevention and self-rescuing safety system can effectively prevent the drunk driving and improve the automobile application safety.

The invention discloses a detection and identification system and method for the short-circuit current of a power system. The detection and identification system and method solve the problem that in an existing identification method, the identification time of short-circuit current signals can be influenced, and the detection response speed is low. The system comprises a power supply module and asensing module, the sensing module is electrically connected to one group of primary current transformers, the power supply module and a control module, the control module is electrically connected toa liquid crystal display and the power supply module, the sensing module comprises a group of secondary current transformers which are correspondingly connected to the primary current transformers, the secondary current transformers are electrically connected to A/D samplers, and the A/D samplers are electrically connected to NOR gates through comparators. The system and the method are used for detection and identification of the short-circuit current of the power system.