53results about How to "Retractable and stable" patented technology

The invention relates to a portable cast-in-place pile hole bottom sediment thickness detection device. The detection device comprises a transportation plate trailer and a thickness detection assembly, a winding mechanism is arranged on the transportation plate trailer, one end of the winding mechanism is fixedly connected with the thickness detection assembly, and the thickness detection assembly comprises a bearing mechanism, a leveling mechanism, a detection mechanism and a moving mechanism; the bearing mechanism serves as a supporting mechanism of the whole detection assembly, the leveling mechanism adjusts the levelness of the detection mechanism and the bearing mechanism, the detection mechanism is used for detecting the sediment thickness, and the moving mechanism is used for driving the whole detection assembly to move. The overall flexible movement of the device is realized through the transportation plate trailer, the winding mechanism can stably lower the detection assembly into a cast-in-place pile hole, the detection assembly can be leveled in the hole through the leveling mechanism, the detection assembly is convenient to move through the moving mechanism, the heavy detection assembly does not need to be manually carried or dragged, and the detection efficiency is improved. The problems that existing equipment is large in size, and manual position adjustment is inconvenient are solved.

The invention provides a lamp hanger, which belongs to the field of lamp mounting accessories, and comprises a box body for mounting hanging wires and a lamp wire, the number of the hanging wires is two, the hanging wires are used for realizing bearing hanging of a lamp, and the lamp wire is used for power supply transmission of the lamp; a suspension wire coil and a lamp wire coil are arranged in the box body, the suspension wire is wound on the suspension wire coil, the lamp wire is wound on the lamp wire coil, and the suspension wire coil and the lamp wire coil are coaxially arranged through a driving shaft, so that the internal structure of the box body is simplified, and the transmission concentricity is ensured. The suspension wire coil and the lamp wire coil which are coaxially arranged are matched with the independent driving parts A and B and the controller board, independent driving control over a suspension wire and a lamp wire is achieved, the rotating speed of the suspension wire and the rotating speed of the lamp wire can be flexibly adjusted according to the wire diameter difference, and the problem of asynchronous take-up and pay-off is solved from the driving end; meanwhile, due to the structure that the suspension wire coil is fixed and the lamp wire coil is rotationally connected to the driving shaft, structural compactness and transmission independence are both considered, and operation is stable and reliable.

The utility model relates to the technical field of deep well measuring equipment, in particular to an anti-deviation deep well measuring instrument telescopic rod locking device which comprises a telescopic rod body, a locking assembly is arranged at the end of the telescopic rod body, and the locking assembly comprises an L-shaped plate fixedly installed at the end of the telescopic rod body. A vertical section plate body of the L-shaped plate abuts against the inner wall of the deep well, a left anchor rod and a right anchor rod are inserted into a top plate body of the L-shaped plate, the anchor rods are inserted into soil around the deep well for fixing operation, a vertical plate is fixedly installed on the bottom face of an end plate body of the L-shaped plate, a threaded rod is in threaded connection with the vertical plate, and a pressing disc is fixedly installed at the inner end of the threaded rod. The compressing disc is compressed on the outer surface of the deep well, and the telescopic rod body comprises a first connecting rod, a second connecting rod in sliding connection with the first connecting rod and a third connecting rod in sliding connection with the second connecting rod. According to the utility model, the telescopic rod can be conveniently locked, deviation is prevented, and the measurement accuracy is improved.