Abstract: A playpen component for safe use includes a left connector and a right connector. The right end of the left connector is provided with an upper connecting cylinder, the left end of the right connector is provided with a lower connecting cylinder, and the upper connecting cylinder and the lower connecting cylinder are socketed together. A tube insert and an elastic limit button are arranged in the right connector. An elastic clamping member is arranged in the tube insert. The left end of the clamping member extends out of the tube insert and the right connector, and the left end surface of the clamping member is adapted to the outer peripheral surface of the upper connecting cylinder. The outer periphery of the right connector is provided with a sliding member that drives the clamping member to move. The limit button is located above the tube insert.

Abstract: A playpen component for safe use includes a left connector and a right connector. The right end of the left connector is provided with an upper connecting cylinder, the left end of the right connector is provided with a lower connecting cylinder, and the upper connecting cylinder and the lower connecting cylinder are socketed together. A tube insert and an elastic limit button are arranged in the right connector. An elastic clamping member is arranged in the tube insert. The left end of the clamping member extends out of the tube insert and the right connector, and the left end surface of the clamping member is adapted to the outer peripheral surface of the upper connecting cylinder. The outer periphery of the right connector is provided with a sliding member that drives the clamping member to move. The limit button is located above the tube insert.

Abstract: The present invention relates to the technical field of coffee machines, and particularly relates to a capsule coffee machine comprising a brewing assembly and a nozzle connected to the brewing assembly and used for guiding the coffee out; the inlet end of the nozzle is connected to an elastic pressurizing member used for increasing the pressure of the coffee entering the nozzle; the outlet end of the nozzle is connected to a foaming cavity used for foaming the coffee ejected into the foaming cavity through the nozzle; the nozzle is further provided with a liquid discharging passage.

Abstract: The present application relates to a service battery charging management device and method for power supply of a recreational vehicle, wherein, the service battery charging management device for power supply of recreational vehicle includes: a vehicle generator, a solar cell panel, a MCU main control unit, an input automatic switching unit, a charging main converting DC/DC circuit, a service battery, a PWM mode charging unit, and a load. The MCU main control unit controls the input automatic switching unit according to an output voltage of the solar cell panel and an output voltage of the vehicle generator, which enables the solar cell panel and the vehicle generator to selectively serve as a charging power supply of the service battery to enable the service battery to be kept in an alternative-charging state, so that normal power supply of household electricity consumption of the recreational vehicle can be guaranteed.

Abstract: The present application relates to a service battery charging management device and method for power supply of a recreational vehicle, wherein, the service battery charging management device for power supply of recreational vehicle includes: a vehicle generator, a solar cell panel, a MCU main control unit, an input automatic switching unit, a charging main converting DC/DC circuit, a service battery, a PWM mode charging unit, and a load. The MCU main control unit controls the input automatic switching unit according to an output voltage of the solar cell panel and an output voltage of the vehicle generator, which enables the solar cell panel and the vehicle generator to selectively serve as a charging power supply of the service battery to enable the service battery to be kept in an alternative-charging state, so that normal power supply of household electricity consumption of the recreational vehicle can be guaranteed.