1It is composed of an adjusting rod with left and right-hand threads, a nut and a pull rod. The adjusting rod is also fixed with an anti-theft and anti-loosening device composed of a cover plate, a fixing plate, and a guide plate connected with the anti-theft and anti-loosening bolts of the flower basket. 2After the anti-theft and anti-loosening device is disassembled, there is no need to take it off. The ring guide plate on it is used to slide along the pull rod, and the bolt of the flower basket can be moved a distance to adjust and operate, so it is convenient to use. 3It is necessary to use a special matching sleeve to unscrew the anti-theft and anti-loosening bolts, and its anti-theft effect is good, safe and reliable. 4Its structure is simple, easy to process, and strong in practicability. It is especially suitable for outdoor installation of hammock and balcony sling. 5Components can be bundled during component transportation and loosened during installation and correction. 6This product uses the lead screw to expand and contract, which can adjust the tightness of the wire rope.