Low-cost release

The utility model relates to the field of electrical engineering, and discloses a low-cost release, which comprises a fixing mechanism, a framework mechanism and a plurality of connecting mechanisms, the fixing mechanism comprises a fixing plate, the framework mechanism comprises a connecting substrate, a connecting cylinder is fixedly arranged at the center position of the front end surface of the connecting substrate, and the connecting cylinder is fixedly connected with the fixing plate. A top rod is slidably arranged in the connecting cylinder in a sleeved mode, a magnet shell is fixedly arranged on the front end face of the connecting cylinder, a strong magnet is fixedly arranged in the magnet shell, a tension spring is movably arranged between the strong magnet and the top rod, the fixing plate is fixedly arranged on the rear end face of the connecting base plate, and a top hole is formed in the center of the fixing plate in a penetrating mode; the rear end of the ejector rod is arranged in the ejector