5results about How to "Docking is simple" patented technology

The present invention provides an auxiliary device for music breath practice, comprising a base, a guide channel, a first air bag, an air flow observation piece and a longitudinal push rod, wherein the guide channel is fixed on the base, the first air bag is arranged in the guide channel, and the first air bag is connected to the blowing nozzle through the first air guide tube; the upper end of the first air bag is slidably connected to the right side wall of the guide channel through the first slide bar, and the first slide bar is provided with an air outlet nozzle, and the sliding seat of the air flow observation piece is slidably connected to the second slide groove through the second slide bar, wherein the second slide groove is arranged on the right side wall of the guide channel, and a plurality of air flow observation tubes are fixed in sequence along the longitudinal direction on the sliding seat, and an air inlet nozzle is arranged at the left end of each air flow observation tube; the longitudinal push rod comprises a plurality of cylinders which are sleeved in sequence, and a second air bag is arranged in the hollow space inside the cylinder, and the second air bag is connected to the first air bag. The present invention enables the practitioner to perform agile conversion training between the exhalation sizes corresponding to different tones and sound amplitudes.

The present invention discloses an automated forming device for the production of porous shale bricks, including a conveying table, a self-turning forming mechanism and a vibrating filling mechanism. The self-turning forming mechanism is placed in the frame cavity of a carrier, and is used for the automated forming operation of porous shale bricks. The self-turning structure is used to assist the automated material removal operation to complete the automatic demoulding process during the material removal. The vibrating filling mechanism is fixedly placed directly above the carrier, and is used for the automated material removal operation. During the operation, the porous shale brick material is fully and evenly filled by vibration. The automated forming device for the production of porous shale bricks realizes the automatic demoulding process to avoid the phenomenon of mold jamming, and cooperates with automatic turning to assist the automated material removal operation to ensure the automation performance. In addition, by means of high-speed vibration, the fully and even filling is achieved in the filler to avoid the cavity phenomenon during the filling.

The invention discloses a novel steel structure handrail reducing elbow. The novel steel structure handrail reducing elbow comprises a body and a connector. The center lines of the two ends of the body are perpendicular. The connectors are of tubular structures and are coaxially fixed to the two ends of the body, the outer diameter of the connectors is smaller than that of the body, and the connectors are used for insertion of stand columns and transverse rods of a handrail. According to the steel structure handrail elbow, butt joint is easy, connection is firm and reliable, and the overall stability and safety of a handrail can be effectively improved.

The application provides a double-turntable conveying system, which comprises a first conveying assembly, a second conveying assembly, a first conveying turntable device and a second conveying turntable device. The first conveying assembly and the second conveying assembly are arranged side by side, the first conveying turntable device and the second conveying turntable device are respectively arranged at the end of the first conveying assembly and the end of the second conveying assembly, and the two are arranged side by side. In the process of conveying a tray, after the tray is moved from the first conveying assembly to the first conveying turntable device, the first conveying turntable device adjusts the tray to a first state, then moves the tray to the second conveying turntable device, waits for a manipulator to grab the first goods on the tray, after the first goods on the tray are grabbed, the second conveying turntable device adjusts the tray to a second state, after the second goods on the tray are grabbed, the second conveying turntable device adjusts the tray to a third state, and moves to the second conveying assembly.

The invention provides a communication method and device, and the method comprises the steps: carrying out the key negotiation with a target Portal server when a configured strategy template is bound, and building DTLS connection; the first registration message is sent to the NAT device through the DTLS connection, so that the NAT device sends a second registration message to the target Portal server after performing NAT conversion on the first registration message, and the target Portal server generates a registration table item according to the second registration message; and when the accessed user equipment initiates a request for accessing a network resource, interacting a Portal protocol message with the target Portal server through the DTLS connection and the NAT equipment, and carrying out Portal authentication.