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5results about How to "Guaranteed basic functions" patented technology

Intelligent doorbell with double power supply modes

The utility model relates to the technical field of doorbells, in particular to an intelligent doorbell with double power supply modes, which comprises a base assembly and a doorbell host machine, the doorbell host machine is provided with a hollow host machine shell, the rear surface of the host machine shell is provided with a first connecting terminal, and the first connecting terminal extends backwards from the interior of the host machine shell and is exposed on the rear surface of the host machine shell; a circuit board, a camera module connected to the circuit board, an infrared induction module connected to the circuit board, a touch module connected to the circuit board and a battery module connected to the circuit board are installed in the host shell, and the circuit board is provided with a first elastic contact terminal used for making contact with the first connecting terminal. Compared with the prior art, the first connecting terminal can be connected to the mains supply, and continuous and stable power supply can be provided; the battery module provides additional guarantee, and the battery can replace power supply in time to maintain the basic functions of the intelligent doorbell under the conditions that a wired power connection circuit breaks down, for example, a wire is damaged, the voltage is unstable and the like.
Owner:SHENZHEN AONI ELECTRONICS IND

Control method and device of electric vehicle, vehicle-mounted audio system

The application discloses a control method and device of an electric vehicle, and a vehicle-mounted audio system, wherein the electric vehicle is provided with the vehicle-mounted audio system, the vehicle-mounted audio system has a low-power consumption mode, and the control method comprises the following steps: detecting the residual power of the electric vehicle; judging whether the residual power of the electric vehicle is lower than a preset value; and if the residual power of the electric vehicle is lower than the preset value, starting the low-power consumption mode. When the residual power of the electric vehicle is lower than the preset value, the low-power consumption mode of the vehicle-mounted audio system is started, the power consumption of the vehicle-mounted audio system is reduced under the condition of guaranteeing the basic function of the vehicle-mounted audio system, and the endurance of the electric vehicle is improved.
Owner:WEIFANG GOERDYNA TECH CO LTD

A nail gun safety protection device with an adjustable trigger mechanism

ActiveCN224274945UChange trigger thresholdeasy to operateStapling toolsNailing toolsRotational axisGun safety
This utility model relates to the field of nail gun technology, and more particularly to a nail gun safety protection device with an adjustable trigger mechanism. It includes a nozzle base, a pressure sleeve, a trigger rod assembly, an axial adjustment disc, a sensing component, and a reset elastic element. The pressure sleeve slides with a limiting pin on the nozzle base via an axial guide groove. The trigger rod assembly includes a front trigger rod and a linkage signal rod. The axial adjustment disc is adjustablely connected to the front end of the front trigger rod via a threaded connection and is fixedly connected to the pressure sleeve. The sensing component uses a non-contact combination of a permanent magnet on the linkage signal rod and a Hall sensor inside the nail gun. The reset elastic element is sleeved on the outside of the pressure sleeve and abuts against a spring mounting groove. This device adjusts the extension length of the trigger rod by rotating the axial adjustment disc, achieving stepless adjustment of trigger sensitivity. It uses magnetic induction instead of mechanical contacts, and the guide limit seat restricts the circumferential rotation of the trigger rod to ensure adjustment accuracy. It has advantages such as convenient operation, stable signal, and efficient maintenance.
Owner:TAIZHOU DINGBA POWER TOOLS

Strip mine water-containing end slope close-to-slope mining method

PendingCN121932186AWill not seriously break the newsreduce digging depthUnderground miningSurface miningCrushed stoneStructural engineering
The invention discloses a near-slope mining method for a water-containing end slope of a strip mine. The near-slope mining method comprises the following steps: step adjustment; a combing area is determined, and temporary local unwatering wells are built; a profile steel supporting wall is built; building a water-blocking supporting wall; an auxiliary supporting wall is built; and mining in sections and recovering the water layer. According to the cement rock (coal) ash mixing pile, applicability transformation is conducted on a traditional cement soil mixing pile, the strength and impermeability of the cement rock (coal) ash mixing pile made of the gravel, the coal cinder and the coal ash are improved, meanwhile, adverse effects cannot be caused to the mining process, and meanwhile mine area waste can be consumed. Different mixing piles are arranged at different positions in a layered and classified mode, multiple functions of supporting, water prevention, supporting and water prevention and the like are achieved, building construction is conducted in different positions independently, the building construction process is simple, and a safe and stable slope environment and a dry construction environment are provided for slope mining. According to the temporary local drainage well, the excavation depth of the drainage well is reduced, the cost is saved, and the underground water in the mining area cannot be seriously damaged due to the local combing mode.
Owner:YUNNAN DUANTIAN MINING TECH DEV CO LTD