97results about How to "Avoid frequent disassembly" patented technology

The invention discloses a plasma treatment device that comprises a burner cap electrode, and gas flows through an air inlet running through the burner cap electrode to enter a reaction chamber of the plasma treatment device; a scaleboard that can be assembled and disassembled is arranged on the burner cap electrode facing to the surface; the scaleboard is generally parallel to the burner cap electrode and provided with a through hole corresponding to the air inlet so as to facilitate the gas to enter the reaction chamber through the through hole. The technical difficulty and the cost requiredby the scaleboard are comparatively low, but the insulation effect of the scaleboard is reliable and stable; the scaleboard can be conveniently replaced when being corroded to a predetermined degree,therefore, the service life of the burner cap electrode can be obviously prolonged and the cost is saved.

The invention discloses a sliding support seat with a hydraulic hammer capable of rotating to achieve transposition. The sliding support seat comprises a main supporting plate with the front end faceformed in an arc surface cuboid shape and an auxiliary supporting plate with the rear end face formed in an arc surface shape. The rear end face of the auxiliary supporting plate and the front end face of the main supporting plate are arranged with the same axis and the same diameter. A plurality of arc-shaped sliding grooves which are distributed up and down and arranged in a left-right penetrating mode are formed in the front end face of the main supporting plate. The sliding grooves and the rear end face of the main supporting plate are arranged coaxially. A plurality of sliding guide railswhich are distributed up and down and matched with the sliding grooves are formed on the rear end face of the auxiliary supporting plate. A rotating hydraulic cylinder is fixed on the upper end faceof the main supporting plate. A driving plate is fixed to an output shaft of the rotating hydraulic cylinder. A long-hole-shaped drive sliding groove is formed in the driving plate. A cylindrical driving column matched with the drive sliding groove is formed at the left end of the upper end face of the auxiliary supporting plate. The driving column is inserted in the drive sliding groove. The sliding support seat with the hydraulic hammer capable of rotating to achieve transposition saves time and labor, prevents the hydraulic hammer from being disassembled frequently, and is simple in structure and convenient to use.

A robotic fish adopts a three-stage structure of a head drive system, a middle section control system and a tail balance servo system. The head drive system includes a servo machine, a battery box and a receiver, and the head servo machine is connected to the receiver through a channel. , The middle part of the control system has a built-in servo connected to the second channel of the receiver. The joint between the head and the middle part adopts a waterproof sealing sleeve to realize dynamic sealing, and is linked by a double rocker mechanism driven by a servo machine. A spring device is used at the connection between the fish tail's balance follow-up system and the fish body, so that the fish tail is in an unstable balance follow-up state. The swing range of the middle section of the robot fish is controlled by the remote control, which drives the fish tail to swing and push the robot fish forward, and the middle section servo controls the steering of the fish. The appearance of the present invention is similar to that of a real fish, and the undulating advance of the fish can be realized, and the turning of the robot fish can be realized by using the reverse thrust of the water flow on the pelvic fin of the robot fish and the swing of the tail of the robot fish to one side, and can better carry out the hydrodynamic research of the fish .