308results about "Keys" patented technology

The utility model belongs to the technical field of key protection shells, and particularly relates to an anti-falling type automobile intelligent key shell which comprises a protection sleeve and a key area on the protection sleeve, a square groove is formed in one side of the protection sleeve, a protection pad is fixedly connected to the protection sleeve, a female buckle is installed at one end of the protection pad, and a male buckle is installed at the other end of the protection pad. A male buckle is fixedly installed on the protective sleeve, and the protective pad covers the square groove through the female buckle and the male buckle. According to the automobile intelligent key protection sleeve, the protection pad is arranged to protect a spare key, the spare key on one side of an automobile intelligent key is located in the square groove, then the female buckle is pulled to be separated from the male buckle, shielding of the protection pad on the square groove is removed, the spare key is exposed, and then the spare key is popped out of the protection sleeve through the pressing head to be used. After use, the spare key is taken back, the protective pad shields the spare key through connection of the female buckle and the male buckle, operation is easy and convenient, the spare key is prevented from being abraded and collided, and meanwhile the overall attractiveness is improved.

A key plug rotatable within a cylindrical bore of a cylinder lock. An upper relatively narrow part of a key way has a small lateral width no more than 33% of the maximum width of a lower relatively wide part of the keyway and extends obliquely upwards along a first direction pointing away from a second lower side wall of a lower part and being inclined at a relatively small angle α, in the interval 3° to 12°, relative to the vertical mid-plane. The sideways or lateral location of the upper relatively narrow part of the keyway is such that an imaginary downward extension thereof, substantially in a second direction opposite to the first direction down to an outer cylindrical contour of the key plug, will fall onto the outer cylindrical contour at a same second side of the vertical mid-plane and inside the second lower side wall of the keyway.

The utility model discloses a double lock structure which comprises a lock cylinder, a key and a lock shell, a second key plate and a first key plate are formed on the key, unlocking convex teeth are formed at the upper end of the first key plate, and the unlocking convex teeth are used for being inserted into first lock bead holes from inside to outside so as to push first lock beads to the outer ends of the first lock bead holes. An unlocking groove is formed in one side of the second key plate, and an unlocking limiting structure used for limiting the unlocking convex teeth to be inserted into the first lock bead hole is formed in the lock hole; the key is provided with an unlocking position relative to the lock hole, at the unlocking position, the unlocking protruding teeth are inserted into the first lock ball holes, the inner ends of the second lock balls are inserted into the unlocking pits, the outer ends of the second lock balls are flush with the outer wall of the lock container, and the key is connected with the unlocking limiting structure in an attached mode. The double-lock structure is good in anti-theft performance.

The invention relates to a lock cylinder with composite marbles, which comprises a shell, a lock liner is arranged in the shell, a key slot and a plurality of first inner marble slots communicated with the key slot are arranged in the lock liner, and first outer marble slots communicated with the first inner marble slots one by one are arranged in the shell. The main pin tumbler and the auxiliary pin tumbler can be inserted in a relatively movable mode, the main pin tumbler and the auxiliary pin tumbler are provided with a main protrusion and an auxiliary protrusion which can stretch into a first tooth groove and a second tooth groove of a key respectively, and a locking device which can stretch into the first inner pin tumbler groove to push the main pin tumbler and the auxiliary pin tumbler is arranged in the first outer pin tumbler groove. When the key is inserted into the key groove, the main protrusion and the auxiliary protrusion are matched with the first tooth groove and the second tooth groove respectively, and then the main pin tumbler and the auxiliary pin tumbler eject the locking device back into the first outer pin tumbler groove so that the lock cylinder can rotate relative to the shell. The key is simple in structure, and the number of key bits is increased through the main protrusions and the auxiliary protrusions.

The invention discloses an anti-theft lock head, a key and a lock, and relates to the technical field of locks.The blade of the anti-theft lock head is provided with a working side wall, and in the locking state that the blade resets, protrudes and is clamped into a groove, the working side wall is configured to abut against the corresponding groove wall of the groove so as to prevent a lock cylinder from rotating; according to the anti-theft lock cylinder, due to the fact that the contour missing parts are arranged on the working side walls of only part of the blades, when rotating torque in the unlocking direction is applied to the lock cylinder in the locking state, the working side walls cannot effectively abut against the corresponding groove walls and / or the inner wall of the lock body, and therefore the anti-theft lock cylinder can be locked. Therefore, the blade cannot be hung by the edge of the groove wall after being shifted to the flush position and always rebounds instantly, the hand feeling feedback that a technical opener relies on pushing operation is thoroughly eliminated in the technical opening process, the technical unlocking probability is reduced, and the safety is improved.