12results about How to "Avoid shunting" patented technology

The invention relates to the technical field of automobile lamps, in particular to a rear combination lamp power switching system, a rear combination lamp and a vehicle with the rear combination lamp. The system comprises a first power supply processing module, a second power supply processing module and a vehicle lamp controller, the first power supply processing module comprises a first power supply protection unit which is connected with a position lamp power supply line; the first signal processing unit is connected with the first power supply protection unit; the first power supply protection unit and the first signal processing unit are connected with the output control unit; the first signal detection unit is connected with a position lamp power supply line; the second power supply processing unit comprises a second power supply protection unit connected with a brake lamp power supply line; the second power supply protection unit and the first signal processing unit are connected with the second signal processing unit; the second signal detection unit is connected with the brake lamp power supply line; and the first signal detection unit and the second signal detection unit have the same structure and are connected with the vehicle lamp controller. Faults can be prevented from being misreported, and user experience is good.

The application discloses a gas-water diversion anti-siphon device, which comprises a water storage tank body, a water inlet pipe joint, a water outlet pressure-limiting backflow valve assembly, a pressure-loss air inlet valve assembly and a pressure-loss water outlet valve assembly. The water inlet pipe joint is arranged at the upper half of the water storage tank body and is connected with a water supply pipe network. The water outlet pressure-limiting backflow valve assembly is arranged at the lower half of the water storage tank body and is connected with downstream water using appliances. The pressure-loss air inlet valve assembly and the pressure-loss water outlet valve assembly are arranged at the top end and the bottom end of the water storage tank body, respectively. When the water supply pipe network is shut down and negative pressure is generated, the pressure-loss air inlet valve assembly is opened to enable air to enter the water storage tank body and flow into the water supply pipe network through the water inlet pipe joint. Meanwhile, the pressure-loss water outlet valve assembly is opened to discharge the accumulated water in the water storage tank body. Meanwhile, the water outlet pressure-limiting backflow valve assembly is closed to prevent downstream water from flowing back into the water storage tank body.

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

The low-noise cooking utensil comprises a pot body, a pot cover and a first heat dissipation assembly installed on the pot cover, the pot cover comprises a surface cover and an inner cover, and the surface cover and the inner cover are matched to define a cooling cavity communicated with the outside. The first heat dissipation assembly comprises a first sealing ring, a mounting cavity and a first fan assembly arranged in the mounting cavity, a first ventilation hole is formed in the bottom wall of the mounting cavity, and air blown out of the first fan assembly flows to the cooling cavity through the first ventilation hole and then is discharged to the outside; a damping gap is formed between the first fan assembly and the side wall of the mounting cavity, and the first sealing ring is arranged between the first fan assembly and the bottom wall of the mounting cavity so as to prevent cold air at the air outlet end of the first fan assembly from flowing to the damping gap. According to the cooking utensil, noise can be effectively reduced, and the air cooling effect can be improved.

The invention discloses a high-frequency driving amplifying circuit which comprises a driving chip and a load circuit. The load circuit comprises a first inductor and a load resistor, the first inductor is connected between a first pin and a second pin of the driving chip, a first end of the load resistor is directly or indirectly connected with the second pin of the driving chip, and a second end of the load resistor is connected with a reference potential; the driving chip comprises an LDO circuit and a driving circuit, the LDO circuit is connected between the power supply voltage of the driving chip and the first pin and used for generating an output voltage based on the power supply voltage, the output voltage is smaller than the power supply voltage, and the driving circuit is connected between the second pin and the reference potential and used for generating an output signal at the second pin. High-frequency driving is achieved with low power consumption and high linearity, stray capacitance is reduced by adopting the low-voltage MOS tube, alternating current is prevented from being shunted, power loss of the high-frequency driving amplification circuit is reduced, the first inductor with a large inductance value can be selected under the same resonant frequency, and the chip design difficulty is reduced.

The utility model discloses a projection welding electrode assembly for preventing molded surface interference during nut projection welding of an L-shaped part, which relates to the technical field of projection welding electrode assemblies and comprises a projection welding machine, an upper electrode arm is fixedly connected to the upper side of the left side wall of the projection welding machine, and an upper electrode holding rod is fixedly connected to the lower side of the outer side wall of the upper electrode arm. The projection welding electrode assembly comprises an upper electrode holding rod, the bottom end of the upper electrode holding rod is fixedly connected with an upper electrode assembly, the two sides of the outer side wall of the upper electrode assembly are fixedly connected with water pipe connectors, and the bottom end of the upper electrode assembly is fixedly connected with a projection welding upper electrode. The clamping pin can be rapidly replaced according to the size of a positioning hole of a part, the replaced clamping pin can stably fix the part, the part and the upper electrode can be separated through the buffer insulating plate, the upper electrode is protected, and the situation that the upper electrode makes contact with an iron material, and consequently electricity conduction occurs, and shunting is generated is prevented.

The utility model relates to a constant-flow non-disturbance furnace changing system for a blast furnace hot blast stove. The system comprises a compressed air main pipeline, a cold air main pipeline, an air supply pipeline, a branch stamping pipeline and a branch cold air pipeline, according to the constant-flow non-disturbance furnace changing system for the blast furnace hot blast stove, cold air pressurizing and compressed air pressurizing of the air feeder II are connected in parallel and are mutually standby systems, so that normal furnace changing and running of the hot blast stove when any pressurizing system breaks down are guaranteed; besides, compressed air is obtained by arranging an independent air compressor, so that the compressed air is independent of a compressed air conveying system in the steel mill, and two or more air storage tanks are arranged to ensure the pressure of the compressed air at the output end and play roles in stabilizing pressure and buffering, so that pressure fluctuation in a compressed air main pipeline in the steel mill can be thoroughly avoided, and the service life of the steel mill is prolonged. And safe gas use of other production departments is guaranteed, meanwhile, potential safety hazards caused by frequent fluctuation of pressure in the compressed air pipeline are reduced, and practicability is high.

The application provides a flushing device and an intelligent toilet. The flushing device comprises a water tank, a water inlet pipeline for supplying water to the water tank, a water valve assembly arranged in the water tank, the water valve assembly comprising a first water inlet valve, a second water inlet valve and a water distribution valve, the inlet of the first water inlet valve being communicated with the water inlet pipeline, and the outlet being communicated with the inlet of the water distribution valve, the inlet of the second water inlet valve being communicated with the water inlet pipeline, and the outlet being communicated with the water tank, a water pump arranged in the water tank, the water outlet of the water pump being communicated with the water distribution valve, a floating assembly sleeved outside the water inlet pipeline, a linkage mechanism connected between the floating assembly and the second water inlet valve, and a control mechanism arranged on the water distribution valve, the control mechanism being configured to drive the linkage mechanism to act according to the working state of the water distribution valve, so as to control the opening or closing of the second water inlet valve. In this way, the multifunctionality and practicability of the flushing device can be effectively improved, and the layout pressure of the flushing device installation is reduced.

This invention relates to the field of automotive manufacturing technology and provides an adjustable positioning mechanism for automated welding of automotive parts. The mechanism includes a fixed base, a first support rod, a second support rod, and an electrode assembly. The fixed base has a vertically mounted first and second support rods that can slide up and down relative to it. A first magnet and a second magnet are fixedly connected to the first and second support rods, respectively. The electrode assembly is mounted on the fixed base via an insulating sleeve. The electrode assembly includes an electrode, an electrode fixing base, and a lower electrode arm connected in sequence. The top of the electrode extends upward to form a positioning post for mounting the workpiece. Springs are mounted on the first and second support rods. The lower end of the spring abuts against the fixed base, and the upper end abuts against the bottom of the first or second magnet, allowing the magnet to slide with the support rod and compress the spring. This invention solves the problems of workpiece rotation and unreliable clamping in traditional positioning mechanisms.

The utility model discloses a chlorinated paraffin storage device which comprises a storage tank, a constant-temperature cavity is arranged on the periphery of the storage tank, a spiral cooling pipe, an electric heating pipe and a temperature sensor which surround the periphery of the storage tank are arranged in the constant-temperature cavity, the spiral cooling pipe is connected with an external refrigerating machine, a corrosion-resistant alloy layer is arranged on the inner side of the storage tank, and a heat preservation layer is arranged on the outer side of the storage tank. Spraying pipes are arranged on the two sides of the top of the storage tank, a stirring device is arranged in the middle of the interior of the storage tank and comprises a stirring shaft arranged in the middle of the interior of the storage tank, transverse stirring blades are arranged on the stirring shaft, vertical guide pieces with irregular lengths are arranged on the stirring blades, and pressure reducing holes are formed in the guide pieces. Through the spiral cooling pipe, the electric heating pipe and the temperature sensor, the temperature of the stored chlorinated paraffin is accurately controlled, and damage is avoided; and by arranging the transverse stirring blades and the irregular vertical guide sheets, shunting of the chlorinated paraffin is avoided, micro-circulation of the chlorinated paraffin is promoted, and the temperature is balanced.

The invention belongs to the technical field of agricultural machinery, and discloses an agricultural machinery hydraulic control method which comprises a walking state hydraulic control method, and in the walking state hydraulic control method, it is determined that the agricultural machinery is in a walking state; acquiring ground resistance, and comparing the ground resistance with preset resistance; if the ground resistance is not smaller than the preset resistance, it is indicated that the ground resistance is large at the moment and possibly due to the fact that the farm tool touches stones or other obstacles, the motor is controlled to enter the high-rotating-speed mode, the hydraulic lifter is controlled to lift the farm tool, and therefore the farm machine can run normally; due to the fact that the pump is used for only providing hydraulic oil for the steering gear and the hydraulic lifter or only providing hydraulic oil for the steering gear and the hydraulic output module, in the process of controlling the hydraulic lifter to lift the farm tool, the pump does not supply oil to the hydraulic output module any more, oil flow division can be prevented, and it is guaranteed that sufficient oil enters the hydraulic lifter.

The present invention relates to a field of welding technology, and specifically to a device for preventing current shunting of a multi-spot welding machine, comprising a mounting table, two groups of fixing mechanisms capable of fixing metal plates are fixedly mounted on the upper end of the mounting table, a mounting frame is fixedly connected to the upper end of the mounting table, an abutment frame capable of triggering a reset mechanism is fixedly connected to the upper end of the mounting table, a second welding head capable of welding the metal plate is fixedly connected to the outer wall of the mounting block, a high-voltage capacitor capable of increasing the high-voltage current released by the second welding head is fixedly connected to the upper end surface of the mounting block, the high-voltage capacitor is interconnected with the second welding head, an anti-shunting mechanism capable of reducing current shunting when the second welding head is welded is fixedly connected to the bottom of the second welding head, and a high-pressure gas pump capable of delivering high-pressure gas to the anti-shunting mechanism is also fixedly mounted on the upper end of the mounting table, thereby avoiding the problem of short circuit caused by welding of multiple welding heads.