3results about How to "Retractable" patented technology

The utility model relates to a water conservancy monitoring device for a water conservancy project, and relates to the field of water conservancy monitoring devices. The device comprises a floating seat, an equipment seat is installed on the upper end face of the floating seat, the equipment seat is fixedly connected with the floating seat, a load bearing ring is further fixedly installed on the lower end face of the floating seat, an equipment box is fixedly installed on the upper end face of the equipment seat, and a detection platform is horizontally arranged on the upper end face of the equipment box. A monitoring box and a shooting assembly are fixedly installed on the upper end face of the detection platform, and a vertical pipe base is further fixedly installed at the center of the upper end face of the detection platform. Through the arrangement of the load bearing ring and the reasonable design of the structure of the floating seat, the device has good stability on the water surface, can resist the influence of water flow fluctuation and stormy waves, reduces the risks of shaking and toppling, and guarantees the accuracy of monitoring data. The winding assembly can conveniently control the depth of the water quality detector, so that the water quality at different depths can be conveniently detected.

This utility model discloses a well cleaning operation device, characterized by comprising a support frame and a reel mounted on the support frame. The outer circumference of the reel is connected to one end of a hook structure. An anti-reverse structure, maintaining contact with the reel, is also installed on the support frame. The anti-reverse structure includes an adjusting component mounted on the support frame and a limiting component mounted on the reel. This utility model has a simple structure. By rotating the reel, the hook structure can be easily raised and lowered, thus completing the lowering and raising of the bucket. Compared with traditional methods, the operation process is simpler, the workload is significantly reduced, and the efficiency of the cleaning operation is improved. Furthermore, the anti-reverse structure design ensures that even if the operator releases the crank handle and the bucket attempts to rotate the reel in the opposite direction due to gravity, the cooperation structure of the limiting component and the adjusting component restricts the limiting component to only one rotation, effectively preventing the bucket from accidentally falling and greatly improving operational safety.

This utility model relates to the field of stage lighting technology and discloses an adjustable stage lighting rig, including a support frame. A top block is fixedly connected to the top of the support frame, and a fixing ring is installed in the middle of the support frame. Top rods and bottom rods are fixedly connected to the top block and the fixing ring on both sides, respectively. A top groove is opened through the middle of each top rod. A receiving groove is opened in the middle of the top block. A rotating rod is rotatably connected to the inner wall of the receiving groove, penetrating to the inner wall of the two top grooves. A take-up roller is fixedly connected to the wall of each rotating rod in the top groove. An anti-glare curtain is wound in the groove of the take-up roller. Positive soft magnetic blocks are provided on the two outer walls of the anti-glare curtain near the lower end. A bottom groove is opened through the inside of each bottom rod. A bottom negative magnetic block and a top negative magnetic block are fixedly connected to the two inner side walls of the bottom groove and the top groove, respectively. This utility model can flexibly switch between lighting and anti-glare modes according to the scene, improving the flexibility and ease of use of stage lighting adjustment.