4results about How to "Improve measurement work efficiency" patented technology

This utility model provides a tunnel positioning device and a tunnel measurement system, relating to the field of tunnel construction technology. The tunnel positioning device includes a base, a movable column, a centering platform, and a support component. One side of the base is fixedly installed at the edge of the tunnel segment. One end of the movable column is hinged to the side of the base opposite to the tunnel segment. The centering platform is fixedly connected to the end of the movable column away from the base and is used to place measuring equipment. One end of the support component is movably connected to the middle of the movable column, and the end of the support component away from the movable column is connected to the tunnel segment. The support component and the movable column are set at an angle. This utility model facilitates the installation of measuring equipment, keeps the centering platform horizontal at all times, ensures the stability and flexibility of the tunnel positioning device, guarantees the measurement accuracy of the measuring equipment, and allows the measuring equipment to be installed on or removed from the centering platform, improving the efficiency of measurement operations.

The utility model relates to road construction surveying technical field discloses a kind of road construction surveying devices, including device pedestal, level gauge body is equipped on device pedestal upper, rotating mechanism is rotatably equipped on device pedestal, adjusting mechanism is equipped on rotating mechanism, rotating mechanism can drive adjusting mechanism and level gauge body rotation, device pedestal bottom is equipped with support rod piece, several device supports are equipped on support rod piece, the beneficial effects compared with prior art of the utility model are as follows: downward pressing device pedestal can make support rod be driven by ground reaction force and move up limit block, a plurality of hinged rods are automatically opened outwards by bracing rod synchronous drive, without manual manual bending support foot;Only need to loosen locking bolt after measurement, spring can push limit block and support rod downward reset, drive device support to automatically fold inwards, overall erection and storage time compared with traditional tripod shorten, substantially improve the measurement operation efficiency of road construction frequent point transfer.

The utility model relates to the field of cavern surrounding rock deformation monitoring, in particular to an open type convergence measuring pile. The open type convergent measuring pile comprises an anchoring section, a hanging rod and a measuring pile hook, one end of the anchoring section is used for being embedded into a rock wall to be fixed, the other end of the anchoring section is connected with one end of the hanging rod, the other end of the hanging rod is connected with the measuring pile hook, and the measuring pile hook is a polygonal open hook composed of a connecting rod, a limiting rod and a guide rod. One end of the connecting rod is connected with the hanging rod, the other end of the connecting rod is connected with one end of the limiting rod, the other end of the limiting rod is connected with the guide rod, the length of the limiting rod is slightly larger than the width of a hook of a convergence gauge, and the limiting rod is perpendicular to the tension direction of a measuring line of the convergence gauge. According to the utility model, the positioning accuracy of the convergence gauge hook can be ensured, and a measurer can quickly and conveniently hang the convergence gauge hook.

The invention discloses a transmission shaft axial clearance measurement device and method, and belongs to the technical field of diesel outboard engine underwater propulsion system transmission shaft detection, and the device comprises a measurement installation seat, a fixing assembly used for fixing the measurement installation seat, a measurement assembly used for detecting clearance data, and a locking assembly used for locking the measurement assembly. Wherein the measuring mounting seat is provided with a connecting hole position matched with a reduction gearbox assembly mounting structure and a mounting hole position for mounting the measuring assembly; the measuring assembly comprises a measuring meter and a measuring extension probe, the measuring extension probe penetrates through the mounting hole and is used for abutting against the thrust surface of the transmission shaft, and the measuring meter makes contact with the end, away from the transmission shaft, of the measuring extension probe; the locking assembly is connected with the measurement mounting seat and is used for fixing the position of the measurement meter; and the measurement mounting seat is fixedly connected with the reduction gearbox assembly through a fixing assembly. According to the invention, the problems of large measurement error, tedious operation, poor data consistency and the like of a traditional measurement method can be solved.