4results about How to "Flexible structure adjustment" patented technology

The utility model relates to the technical field of medical instruments, in particular to a special clamping and connecting mechanism for a dental handpiece diagnosis and treatment in-vitro simulation platform. According to the technical scheme, the dental handpiece comprises a platform body, a shaft fixing base and a dental handpiece body, a sliding base is arranged on the platform body in a front-back sliding mode, the shaft fixing base is arranged on the sliding base in a left-right sliding mode, and the dental handpiece body is arranged on the shaft fixing base through a positioning assembly. The positioning assembly adopts an upper and lower double-clamping fixing design, so that the clamping coaxiality of a machine needle of the dental handpiece body can be ensured, and the positioning assembly consists of a handpiece left fixing clamp, a special connector, a handpiece right fixing clamp, a shaft fixing top seat and a positioning shaft. According to the utility model, an upper and lower double-clamping structure is adopted, so that the stability of the dental handpiece body during high-speed operation is enhanced, and looseness is prevented; the positioning assembly is precise, the clamping coaxiality of the machine needle is ensured, and the experimental error is reduced; the specially-made connector is provided with a customizable arc surface and a customizable round concave part, so that the connector is adaptive to various mobile phone models.

The adjustable spring assembly comprises an outer cylinder, an inner cylinder is installed in the outer cylinder in a sliding mode, a spring is arranged in the inner cylinder, a fixing plate is installed at the bottom of the spring, the fixing plate is fixedly connected with a pull rope, a through hole is formed in the top of the inner cylinder, the pull rope penetrates through the through hole, and the through hole is communicated with the inner cylinder. At least one linear groove is formed in the outer wall of the outer barrel, at least one gear hole is formed in the inner wall of each linear groove at equal intervals, a limiting rod is fixedly connected to the outer wall of the inner barrel, and one end of each limiting rod penetrates through the corresponding linear groove; the positions of the inner cylinder and the outer cylinder are adjusted, the limiting rods are inserted into the gear holes in a matched mode, the local protruding degree of the spring mattress is adjusted, the pull ropes penetrate through the through holes to be connected with the fixing plates to adjust compression of the springs, the local hardness of the spring mattress is changed, the fitting degree and comfort of the mattress are improved, the structure is adjusted flexibly, and use is convenient and fast.

This utility model discloses a vibration molding device for precast components, including a base. An internally threaded cylinder is located at the center of the top of the base, and a threaded column is connected inside the internally threaded cylinder. A column is fixedly connected to the top of the threaded column. Multiple screws are provided on the outer wall of the column, and sleeves are fitted around the screws. Ball bearings are rotatably connected to the ends of the sleeves. A vibration platform is located on the top of the base, and multiple vibration motors are installed at the bottom of the vibration platform. Shock absorbers are provided at the four corners of the bottom of the vibration platform, and a limit groove is formed at the top of the vibration platform. This utility model, through a series of structural features, facilitates better stability of precast pipe components and molds on the vibration device, meeting the vibration requirements of different types of precast components, thereby reducing the probability of limitations in the application range of this vibration platform.

The present application relates to the technical field of tea production and processing, and particularly relates to a tea automatic sorting device, which comprises: a rack, wherein the rack is provided with a tea conveying belt; a plurality of static electricity sorting assemblies are arranged on the rack along the conveying direction of the tea conveying belt, the static electricity sorting assembly comprises a lifting frame, a static electricity rotating roller, a baffle and a receiving groove, the lifting frame is slidingly arranged on the rack along the vertical direction, the static electricity rotating roller, the baffle and the receiving groove are arranged on the lifting frame in parallel, the static electricity rotating roller is located above the tea conveying belt, and the gap between the static electricity rotating roller and the tea conveying belt gradually decreases along the conveying direction of the tea conveying belt. The tea automatic sorting device provided by the present application has a flexible structure and can adapt to the sorting operation of various types of tea, especially when the size and quality of the tea have little difference, the tea can be accurately classified, and the quality of the tea is improved.