6results about How to "Meet maintenance" patented technology

The invention provides a fuselage box section structure provided with a strut type undercarriage. The fuselage box section structure comprises a front frame, a rear frame, a left beam, a right beam, an upper platform and a lower platform. Wherein the front frame, the rear frame, the left beam, the right beam, the upper platform and the lower platform are riveted to form a closed box body; the directions of the front frame and the rear frame are perpendicular to the course of the aircraft and serve as bearing frames at the bottom of the aircraft; the directions of the left beam and the right beam are parallel to the course of the aircraft and serve as bearing beams at the bottom of the aircraft; the upper platform is a floor of the aircraft, and the lower platform is an external skin of the aircraft; mounting holes are formed in the upper platform and the lower platform and serve as undercarriage connectors, and the undercarriage connectors are in clearance fit with undercarriage supporting columns; and a flange plate mounting surface is arranged at the mounting hole of the lower platform and is connected with a flange plate of the undercarriage through a bolt.

The utility model relates to the technical field of shielding cases, and discloses an electric connector shielding case, which comprises a connector body, a first shielding case and a second shielding case are respectively and movably sleeved on the surface of the connector body, and a dismounting mechanism is arranged between the first shielding case and the second shielding case. According to the electric connector shielding case, when the shielding case is damaged and needs to be replaced, an operator can quickly separate the first shielding case from the second shielding case only by pushing the push rod without complicated tools and tedious operation steps, so that the replacement time is greatly shortened, and the practicability of the device is improved; according to the electric connector shielding case, the requirement for convenience of maintenance and replacement of the shielding case in an actual use scene can be better met, meanwhile, through the combination of the first shielding case and the second shielding case, the internal electric connector can be effectively protected, external interference is reduced, stable operation of the electric connector is maintained, and the basic function advantages of the electric connector shielding case are continued.

Provided is a catenary maintenance vehicle train, wherein a lifting work platform is provided on the top of tractor I, tractor II and multiple work vehicles or the top of multiple work vehicles, and each lifting work platform is connected to each other after being raised to form a through work platform, and the through work platform is provided with an auxiliary work platform with a self-propelled function, and the multiple work vehicles are provided with an emergency operation cabinet for controlling the through work platform in the room, and tractor I, tractor II and multiple work vehicles are heat-insulating and noise-reducing structures. The present invention improves the heat preservation, heat insulation and noise reduction performance of the vehicle body, is suitable for meeting the needs of catenary maintenance operations in high-cold and high-temperature environments, and greatly improves the living conditions of employees. The through work platform is equipped with an auxiliary work platform with a self-propelled function, achieving a maximum operating height of ≥6600mm, meeting the maintenance and repair of the catenary load-bearing cables, saving manpower and material resources, and greatly improving the efficiency of the catenary maintenance operation.

This utility model discloses a dental handpiece assembly and repair tool, including a repair rotating disk, a disc repair base, and a central support column. The top of the central support column is movably connected to the middle of the repair rotating disk, and the bottom of the central support column is connected to the disc repair base. The repair rotating disk is provided with a first assembly component, a second assembly component, a third assembly component, a first disassembly component, a second disassembly component, and a third disassembly component. The disc repair base is provided with a first worktable, a second worktable, a third worktable, a first assembly base, a second assembly base, and a third assembly base. The advantages are: this design can meet the repair needs of various models of dental handpieces and their various components, thus making the repair more comprehensive, and the disassembly and assembly structure is simple, improving repair efficiency.

A detachable tray structure comprises a first bearing structure and a second bearing structure. A second support structure; the tray foot structures are arranged between the first bearing structure and the second bearing structure, each tray foot structure comprises a first tray foot, a second tray foot and a connecting structure for connecting the first tray foot with the second tray foot, the first tray foot is fixed with the first bearing structure, and the second tray foot is fixed with the second bearing structure. The second tray foot is fixed to the second bearing structure, and the connecting structure is detachably connected with the first tray foot and the second tray foot. The practicability of the detachable tray structure is improved.

This utility model relates to the field of dispensing device technology, specifically a dispensing device for processing oblique-patterned drill bits, comprising a base module. The base module has a worktable at its top center, a workpiece reference surface at its top center, and an XYZ three-axis moving platform. This platform includes an X-axis module, a Y-axis module, and a Z-axis module. The Z-axis module has a dual-channel dispensing actuator. This dispensing device, through the combination of the base and the XYZ three-axis platform, achieves precise three-dimensional movement, improving dispensing accuracy and stability. The dual-channel dispensing mechanism allows for simultaneous multi-point operation, increasing efficiency. The modular dispensing components include a screw pump and a pressure sensor, ensuring precise and reliable control of the dispensing volume. The X / Y / Z axes employ high rigidity and a lead screw guide design, reducing vibration deviation. The T-slot on the worktable supports flexible fixture installation, adapting to different workpieces and enhancing adaptability and operational reliability.