4results about How to "Reduce repair work" patented technology

The utility model belongs to movable type support pier structure in the field of shipbuilding technology. The drive wheel (10) of first motor (9) of one side of support pier body (3) connects first track assembly (1), the drive wheel (10) of second motor (11) of the other side of support pier body (3) connects second track assembly (7), and the bottom of support pier body (1) is provided with lifting component (6), and the lifting rod (8) of bottom lifting component (6) is connected with the bottom of support pier body (3). The movable type support pier structure has simple structure, can satisfy reliable lifting support in the process of shipbuilding, can be automatically moved in short distance on site, saves manpower, saves time and is at ease, and improves shipbuilding efficiency.

This application discloses a tool setting method and tool setting fixture for a vertical slotting machine, belonging to the technical field of tool setting devices. To address the problems of low tool setting efficiency and poor accuracy in existing vertical slotting machines, the tool setting fixture includes a central support plate. A triangular jaw is installed at the bottom of the central support plate. The tool setting fixture is installed at the inner hole of the workpiece to be processed via the triangular jaw. A support base for fixing a measuring device is installed on the front side of the central support plate. A tool setting sample block is detachably connected to the support base. The operator determines the tool setting position by cooperating with the measuring device and the tool setting sample block. This application is mainly used as a tool setting device for CNC vertical slotting machines.

This application relates to the field of municipal road construction technology, and in particular to a hydraulic ring-cutting road surface demolition device that adapts to different manhole cover sizes. The device includes a frame, a power lifting assembly, a hydraulic breaker assembly, and a clamping assembly. The frame includes a fixing plate with a circular through hole on its upper surface, and two inclined supports are fixedly connected to the upper surface of the fixing plate. By setting up the hydraulic breaker assembly, this application utilizes four hydraulic telescopic rods arranged in a cross shape to drive the adjusting block, which in turn drives the breaker head to extend and retract radially. This allows for precise adaptation to various sizes of conventional municipal manhole covers, solving the problem that traditional equipment can only adapt to fixed-size manhole covers and cannot meet the needs of concentrated operations with multiple types of manhole covers in old residential areas. This significantly expands the applicability of the equipment. It achieves neat ring-cutting of the road surface around the manhole cover, resulting in a smooth cut, avoiding excessive damage and road surface cracking, reducing the workload and cost of subsequent road repair, and meeting the asphalt pavement smoothness requirements after the renovation of old residential areas.

This application discloses an automatic memory reclamation method for an in-vehicle SOME / IP protocol stack based on shadow threads, relating to the field of vehicle system development. The method includes: S1: Data reception and timestamp injection: When the protocol stack receives network data packets and allocates memory blocks to cache data, it injects a timestamp into the memory block while storing the data content; S2: Starting a background shadow thread: During the SOME / IP protocol stack initialization phase, a low-priority background shadow thread, independent of the main communication logic of the protocol stack, is started; the shadow thread scans all data cache memory blocks within the protocol stack at a preset period; S3: Timeout determination and forced reclamation triggering: The shadow thread traverses all cache memory blocks and calculates the time difference Δt between the current system time and the memory block timestamp; if Δt is greater than or equal to a preset safety threshold, and it is detected that the upper-layer application has not yet called the Get interface to read the memory block data, then the memory block is determined to be a timeout unread memory block, triggering a forced reclamation mechanism.