129results about How to "Strong anti-theft" patented technology

The invention discloses a separation and reunion device which comprises a rotary shaft, a rotary disc and a bracket, wherein the rotary shaft is inserted in an inner hole in the middle of the rotary disc; a plurality of axial clamping slots are formed in the side wall of the rotary shaft; the inner hole of the rotary disc is provided with limiting fixture blocks, and the number of the limiting fixture blocks is corresponding to that of the clamping slots; the limiting fixture blocks are clamped in the clamping slots to limit mutual rotation between the rotary shaft and the rotary disc; an elastic piece is arranged between the limiting fixture blocks and the inner wall of the rotary disc; the limiting fixture blocks are stressed by external force to compress the elastic piece to separate the limiting fixture blocks from the clamping slots, so that rotation between the rotary shaft and the rotary disc is realized; the bracket is connected with an electromagnetic device; a locking openingis formed in the side wall of the rotary disc; and the electromagnetic device stretches out of the locking rod and inserts the locking rods into the locking opening to lock the rotary disc. The separation and reunion device is simple in structure, low in manufacturing cost and high in working reliability, can generate high anti-theft capacity when being applied to an electronic lock, and can ensure that a lock is not unlocked and also protects internal parts when the lock is unlocked violently.

The invention relates to an embedded type sealing barrel cover and a production method thereof, wherein the barrel cover comprises a main cover plate and a periphery frame plate connected to the periphery of the main cover plate; the main cover plate is provided with a circular opening; a flange part where the main cover plate surrounds the circular opening is a notch part, and the rim section of the notch part is a transverse U-shaped groove; a sealing rubber cover consists of an independent cover cap member and an independent inner plug member; a cover cap body, a cover cap draw ring and an anti-theft ring are sequentially connected from inside to outside to form the cover cap member; a rim part, an inner plug body, a port part, a pulling cover and a draw ring are mainly sequentially connected from outside to inside to form the inner plug member; the inner plug member also comprises a group of guide sheets, and the guide sheets are connected with the inner lateral face of the inner plug body and exert blockage on material passing in a degree during usage; and the periphery edge of the anti-theft ring and the periphery edge of the rim part are fixedly connected in a welding mode by melting plastics through a rubber coating and injection molding method, and the melting plastics are used for forming the notch part of the main cover plate in the process of the injection molding of a barrel cover body.

The invention discloses a blade lock which comprises a lock shell and a lock core. The blade lock is characterized in that a key is inserted into a key hole of the lock core. A safety rod lifting groove which is communicated with the key hole is reserved on one side of the key hole. A safety rod is disposed in the safety rod groove. A safety rod protruding block is disposed at the lower end of the safety rod. A blade hole is further reserved on the lock core. A plurality of blades which are tightly connected and can move transversely in the blade hole are disposed in the blade hole. A blade inner hole for insertion of the key is reserved on each blade. A blade clamping block is disposed in each blade inner hole. An upper clamping groove for clamping the safety rod is disposed at the upper end of the each blade. A key groove which is matched with the blade clamping blocks is reserved on the key. A concave key groove which is matched with the safety rod protruding block is reserved on the upper end face of the key. The blade lock is high in antitheft performance, fine in antitheft performance, quite low in mutual unlocking rate, quite high in key scale, and convenient to use.