6results about How to "Avoid tooth loss" patented technology

The utility model relates to the technical field of fasteners, in particular to a stainless steel expansion screw capable of preventing teeth from falling off, which comprises a baffle and a connecting sleeve fixed at the bottom of the baffle. An expansion sleeve is fixed at the bottom of the connecting sleeve; a threaded rod is arranged in the connecting sleeve and the expansion sleeve, and an expansion part is fixed to the bottom of the threaded rod. The outer part of the threaded rod is in threaded connection with a nut; a first movable groove and a second movable groove are formed in the top of the baffle, and a first supporting strip and a second supporting strip are movably connected into the first movable groove and the second movable groove through a first movable pin and a second movable pin correspondingly. A first limiting strip and a second limiting strip which abut against the top of the nut are correspondingly fixed to the inner side of the first supporting strip and the inner side of the second supporting strip respectively, and the expansion screw can limit the nut, so that the phenomenon of tooth disengaging or loosening of the nut is avoided, the connection stability of the expansion screw is guaranteed, and potential safety hazards are avoided.

This invention discloses a mountain environment crane and its construction method, relating to the field of crane construction technology. The mountain environment crane includes a lower traveling body and an upper slewing body, with the slewing part of the upper slewing body rotatably connected to the slewing seat of the lower traveling body. The lower traveling body includes a track mechanism and a width adjustment mechanism. The width adjustment mechanism is mounted on the slewing seat, and the track mechanisms are symmetrically arranged on both sides of the slewing seat. The width adjustment mechanism is located between the paired track mechanisms, and its output end drives and connects to the track mechanisms. The width adjustment mechanism is used to adjust the distance between the paired track mechanisms. This mountain environment crane and its construction method enable the entire machine to travel on soft and rugged terrain by means of the track mechanism, and the width adjustment mechanism allows for flexible adjustment of the spacing between the paired track mechanisms, adapting to travel operations in narrow sections and improving the overall passability of the machine.

The utility model provides a kind of silicon wafer tank type processing equipment, it includes tank body, the positioning base of being arranged in the tank body bottom, be arranged in the silicon wafer basket on the positioning base, first air pipe group and second air pipe group, silicon wafer is vertically, stacked loading in the silicon wafer basket, first air pipe group is horizontally arranged and is parallel to the stacking direction of silicon wafer, in vertical direction, first air pipe group is higher than second air pipe group, first air pipe group provides horizontal airflow to the side of silicon wafer, second air pipe group provides oblique airflow to the side of silicon wafer.The utility model is set above, both can guarantee that liquid medicine and silicon wafer are fully contacted, also avoid the phenomenon of silicon wafer tooth and patching due to bubble impact, in subsequent process, reduce the generation of fragment and scorched piece, substantially improve product yield;Meanwhile, equipment operation stability improves, production efficiency is optimized, reduce the cost loss due to defective product.

This utility model relates to the field of self-adhesive label production technology and discloses a self-adhesive label die-cutting machine, including: a worktable and self-adhesive labels. A support plate is fixedly installed on the top of the worktable, and an adjustment component is provided between the support plate and the worktable. This equipment solves the problem of "easy deviation and easy deformation" of self-adhesive label substrates through an adaptive feeding structure of "spring buffer - anti-slip damping - double roller traction," ensuring feeding stability. Regarding the adaptability of the pressing material, the anti-slip roller of the compression component adopts a "spring groove - sliding block" buffer design: the spring groove is fixed to the bottom of the support plate, and the inner second sliding block is connected to the inner wall of the sliding block through a spring. When self-adhesive substrates of different thicknesses pass through, the spring can adaptively extend and retract according to the substrate thickness, pushing the second sliding block to drive the anti-slip roller to make slight adjustments up and down, always maintaining appropriate pressure on the substrate surface, thus avoiding excessive pressure that could cause substrate deformation.

The utility model provides a flexible chain scraping and sweeping device which is installed below a transmission belt and between an upper ring and a lower ring of a chain and comprises a cylindrical steel pipe, two vertical plates and flexible rubber, the two ends of the cylindrical steel pipe are fixedly connected to the two side walls of a box body of a feeder respectively, and the two vertical plates and the flexible rubber are arranged at intervals. The two vertical plates and the flexible rubber sheet are obliquely arranged relative to the vertical middle axial surface of the cylindrical steel pipe, the upper parts of the two vertical plates and the flexible rubber sheet are fixed with the cylindrical steel pipe at an included angle of 60 degrees, and the bottoms of the two vertical plates and the flexible rubber sheet are respectively in contact with the two chains; the vertical plates and the flexible rubber sheets comprise the vertical plates and the flexible rubber sheets, the upper portions of the flexible rubber sheets are tightly attached to the vertical plates, and the bottoms of the flexible rubber sheets are attached to the top faces of the chains. Accumulated materials such as hard particles between chain links on the top face of the chain can be removed, and the phenomena that the hard particles are accumulated between the chain links on the top face of the chain, and the chain is disengaged from teeth or broken when meshed with a chain wheel are avoided.

This invention belongs to the field of flour processing technology, specifically a mechanically linked protective planetary gear dough fermentation device. It includes a base, a vertical cabinet fixedly connected to the top outer wall of the base, a top plate mounted on the top outer wall of the cabinet, and a sealing cover on the top outer wall of the top plate. A servo motor is fixedly connected to the top inner wall of the cabinet via screws, and the output shaft of the servo motor is fixedly connected to a connecting column via a coupling. A rotating column is rotatably connected to one end of the top plate, and a pulley pair is installed between the rotating column and the connecting column. In this invention, the planetary gear, constrained by the gear ring, revolves around the sun gear and rotates on its own axis. The dough-mixing rod installed at the bottom of the planetary gear performs a compound motion, creating a multi-directional, multi-regional mixing effect on the dough. All parts of the dough are fully kneaded and pressed, resulting in more uniform mixing. Simultaneously, the opening and closing of the protective net is linked to the raising and lowering of the dough-mixing tank, simplifying the operation process and improving the safety of the equipment.