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39results about How to "Thorough protection" patented technology

Aluminum alloy stud welding method to remove oxidation film with vapor state brazing flux

The invention discloses an aluminum alloy stud welding method to remove an oxidation film with the vapor state brazing flux. The aluminum alloy stud welding method comprises the steps that the end portion of an aluminum alloy stud is machined into a face with a 150 degrees taper angle, and clearing on the end portion and the portion of an aluminum plate to be welded is conducted; a self-designed sealing air hood is installed outside a welding gun stud jacket, and a vaporizing device is joined up at the entrance position of the air course of the sealing air hood; the aluminum plate is arranged horizontally and is connected to the ground, the stud is installed, and the welding gun are compressed at the position to be welded vertically downward; the shielding gas is opened, arc striking is prepared to conduct after normal air delivering is finished, the vapor state brazing flux is jetted through a control circuit before the moment of arc striking, and welding is completed. The aluminum alloy stud welding method has the advantages that middle and large diameter aldural stud can be welded, the application range on plate thickness is wide, the operation of the welding process is easy, the intensity of the a welded joint can reaches to 90 % that of the stud, and the fusing rate of the welding joint reaches to 100 %.
Owner:NANJING UNIV OF SCI & TECH

Rolling-type grape stem removal device

The invention discloses a rolling-type grape stem removal device and relates to the technical field of grapes. The device comprises a box body, electric retractable rods are fixedly connected to the left and right sides of the top of the inner wall of the box, and a mobile plate is fixedly connected to the bottoms of the electric retractable rods; connection rods are fixedly connected to the portion, between the two electric retractable rods, of the top of the inner wall of the box body, hooks are fixedly connected to the bottoms of the connection rods, and the bottoms of the hooks penetrate through the mobile plate and extend to one side of the mobile plate; flow guide plates are fixedly connected to the left and right sides of the inner wall of the box body respectively, a first V-shapedplate is fixedly connected to the back face of the inner wall of the box body, and supporting plates are fixedly connected to the portion, below the flow guide plate, of the left and right sides of the inner wall of the box body. According to the rolling-type grape stem removal device, thick stems and thin and small stems of grapes are removed in sequence, so that stem removal of the grapes is more complete, the grapes can be well protected, the working efficiency is greatly improved, and the grapes and the stems can be well separated.
Owner:六安市叶集区绿叶果木种植专业合作社

Electric bicycle handle lock unlocked or locked by power key

InactiveCN102060062AThorough protectionEliminate the danger of car lossAnti-theft cycle devicesClutchAnti theft
The invention discloses an electric bicycle handle lock unlocked or locked by a power key. The traditional anti-theft electric bicycle lock has an anti-theft function only under a bicycle-locking action when the anti-theft lock locks an electric bicycle, but the electric bicycle can be automatically locked by only pulling out the key routinely. A bracket rotary positioning system is arranged at the upper end of a bicycle handle bracket, is arranged in a lockable lock and is provided with a direct-current electromagnet. The outer end of an electromagnet slide bar is connected with a moveable pull rod; the moveable pull rod can be inserted into a locking positioning groove at the edge of a rotary positioning wheel fixedly connected to the upper end of the bicycle handle bracket; and then a bicycle handle is locked. When electrified, the electromagnet slide bar retracts, the bicycle handle rotates under the action of the springs and then the bicycle handle is unlocked. A rotary clutch switch controls to connect a power supply only when the bicycle handle is at a vertical position, and a voice prompter plays a prompt for pulling off the key at the moment. After the key is pulled off, the electromagnet slide bar restores and extends to lock the rotary positioning wheel due to the interruption of the power supply. A locking action is eliminated, so that the electric bicycle cannot be stolen when a user forgets to lock the bicycle.
Owner:焦纪平

Domestic multifunctional intelligent distribution box

The invention discloses a domestic multifunctional intelligent distribution box. The domestic multifunctional intelligent distribution box comprises a supporting shell, wherein an opening is formed in the upper end of the supporting shell; fixing blocks are arranged on two sides in the supporting shell; a two-horsepower switch and a detection control board are arranged in the supporting shell; the two-horsepower switch is located on the left side of the detection control board; one-horsepower switches are uniformly arranged on the right side of the detection control board; electric appliances with different powers can be connected through the two horsepower switch and the one-horsepower switches, so that the connection of the electric appliances is matched very well; voltage and current of the electric appliances in a working process can be detected through a voltage detector and a current detector, so that the electric appliances are protected more thoroughly. The domestic multifunctional intelligent distribution box is simple in structure and convenient to mount; current and voltage can be detected and abnormal conditions can be found before tripping operation; and when the current and the voltage have the abnormal conditions, people can be reminded through a buzzer, and indirect protection for the electric appliances is also realized.
Owner:广东顺德弘力达电器科技有限公司

Charge-discharge protective system of lithium battery pack

The present invention discloses a charge-discharge protective system of a lithium battery pack including a voltage sampling circuit, a current sampling circuit, a temperature sampling circuit, a load state feedback circuit, a discharge circuit, a charge circuit and a singlechip computer. The voltage sampling circuit is used for sampling voltage of the lithium battery pack, the current sampling circuit is used for sampling current of the lithium battery pack, and the temperature sampling circuit is used for sampling temperature of the lithium battery pack. Output ends of the voltage sampling circuit, the current sampling circuit, the temperature sampling circuit and the load state feedback circuit are electrically connected with the input end of the singlechip computer separately. The output end of the singlechip computer is electrically connected with the charge circuit and the discharge circuit separately. The charge protective system of the lithium battery pack also includes a fuse circuit, and the fuse circuit is connected with the charge circuit in series. The discharge protective system of the lithium battery pack also includes earth leakage protection. Compared to the prior art, the charge-discharge protective system of the lithium battery pack improves the reliability and safety of the protection control of the lithium battery pack, and avoids safety accidents due to invalid overcharge protection and no-load leakage current.
Owner:SHANGHAI TSING POWER ENERGY TECH

Double-synchronizing-shaft lever poking-clamping type folding screen mobile phone and tablet personal computer

The invention discloses a double-synchronizing-shaft lever poking-clamping type folding screen mobile phone and a tablet personal computer, and belongs to the technical field of machinery. The main components comprise a mobile phone accommodating cavity or an accommodating cavity front part, an end plate and a lever poking clamp. According to the connection relation, (non-rotating) synchronous gears which are rigidly connected with the mobile phone accommodating cavity or the two ends of the accommodating cavity front part are hinged with hinge shafts of the two end plates, so that the synchronous gears are meshed with transmission gears of which rotating shafts are fixed with the end plates, or the synchronous gears are directly meshed to achieve the purpose of synchronous reverse rotation; the fixed lining plate is used for supporting a mobile phone screen, and hinged shaft connection parallel to the screen is carried out between the hinged shaft hanging lining plate of the mobile phone screen adjacent to the screen folding area and the mobile phone structure; a lever shaft of the lever poking clamp is hinged to a hinge shaft of the end plate, and a poking column at the foremostend of the lever poking clamp is inserted into a shell and screen supporting plate strip poking groove. The protrusions of the shell and screen supporting plate strip are inserted into the end plate guide grooves to limit transverse displacement of the shell and screen supporting plate strip. The double-synchronizing-shaft lever poking-clamping structure is suitable for inwards-folded folding screen mobile phones and tablet personal computers.
Owner:罗天珍

Controllable exhaust gas temperature sub-control phase change air preheating system and preheating method

The invention relates to a controllable exhaust gas temperature sub-control phase change air preheating system and a preheating method. The preheating system comprises an air preheater (4) and an air channel (5) communicated with the air preheater (4) and a fume channel (7), wherein the front of the air preheater (4) arranged on the air channel (5) is provided with a low-temperature heat release device (18) along an air flow direction; the front and rear of the air preheater (4) arranged on the fume channel (7) are respectively provided with a high temperature heat absorption device (6) and a low temperature heat absorption device (1) along a fume flowing direction; the low-temperature heat release device (18) and a main steam pipe (15) connected with a steam connecting box are respectively communicated with the high temperature heat absorption device (6) and the low temperature heat absorption device (1); and a condensed water main pipe (16) of a condensed water connecting box of the low-temperature heat release device (18) is respectively communicated with the high temperature heat absorption device (6) and the low temperature heat absorption device (1) through branch pipes. According to the change of coal and unit load in the invention, and the waste heat recovery volume and fume exhaust gas temperature are adjusted.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +1

Automatic defect detecting and sorting device for bowls and dishes

ActiveCN113333326AThorough protectionAccurate detection and sortingSortingStructural engineeringMechanical engineering
The invention discloses an automatic defect detecting and sorting device for bowls and dishes. A feeding port is formed in one side of a feeding device, a first detecting port is formed in the other side of the feeding device, a first detecting camera vertically facing the first detecting port is arranged at the first detecting port, a positioning rotary table and a conveying device for conveying the bowls and the dishes from the first detecting port to the positioning rotary table and then to an overturning device are arranged above the first detecting port and between the overturning device, the positioning rotary table is a second detecting port, a second detection camera is arranged at the side surface of the positioning rotary table, a distributing device is arranged at the lower end of the overturning device, a third detecting port is formed in the position, close to the overturning device, of the distributing device, a third detection camera vertically facing the third detecting port is arranged above the third detecting port, and a plurality of runners controlled by automatic screening separating plates to be opened and closed are arranged on the distributing device. The device has the advantages of being accurate in detecting and sorting, high in efficiency, thorough in porcelain protection and high in safety.
Owner:上海首坤智能科技有限公司

Novel voltage stabilizer with smoke sampling protection

A novel voltage stabilizer with smoke sampling protection comprises an output protection control circuit and an input protection control circuit. A voltage sampling circuit, a voltage stabilizing control circuit, a motor driving circuit, and a state indication circuit are arranged beside the output protection control circuit. A temperature and current sampling circuit, a smoke sampling circuit, a calculation and processing circuit, and a time delay circuit are arranged beside the input protection control circuit. The output protection control circuit is connected to the input protection control circuit through the time delay circuit. On abnormal conditions, a coil of an autotransformer T1 heats, the insulation of the coil is destroyed, carbon monoxide or hydrogen gas is given off, or smoke is generated, a gas sensor in the smoke sampling circuit collects carbon monoxide or hydrogen gas or smoke and converts carbon monoxide or hydrogen gas or smoke into electric signals, the calculation and processing circuit processes and amplifies the signals, a switch K1 of the input end of the voltage stabilizer is turned off through the input protection control circuit, the coil of the autotransformer T1 cuts off electricity, and then failures can not further expand, so that the purpose of reliable protection is achieved.
Owner:温州正泰电源电器有限公司
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