Straight slot type blade idling locking head

Abstract

The invention discloses a straight slot type blade idling locking head, which comprises a lock body, an idling core with a keyhole and a rear lock cylinder. A plurality of blade slots are reserved in the idling core. Front and rear blades and blade springs are arranged in the slots. The front and rear blades are provided with V-shaped grooves. An idling pin slot is also formed in the idling core, and an idling pin is arranged in the slot. A plurality of inverted V-shaped flanges matched with the V-shaped grooves in the front and rear blades are arranged on the idling pin. An unlocking groove communicated with the idling pin slot is formed in the idling core. An unlocking clutch pin slot is formed in the rear lock cylinder. Unlocking clutch pins are arranged in the unlocking clutch pin slot and the unlocking groove, and are adjacent to the idling pin. A locking groove is reserved in the lock body, is oppositecorresponds to the unlocking clutch pin slot, and is matched with the rear end part of the unlocking clutch pin. When a lock is locked, after a foreign body or an unlocking tool is inserted into the idling core, the idling core is inserted into a foreign body, and can be randomly rotated, and the lock cannot be unlocked without unlocking, so that the lock is high in antitheft performance.

Description

technical field [0001] The invention relates to a lock, in particular to a straight-groove blade idling lock head. Background technique [0002] Straight groove type mechanical blade lock is characterized in that there are several leaf (page) grooves on the lock cylinder, the blade grooves run through the lock cylinder along the radial direction of the lock cylinder, and each blade groove is generally provided with two shafts along the lock cylinder. The blades arranged forward and backward, when the matching key is inserted, the direction of movement of the two blades is just opposite, and some of the lock heads can't rotate 360 ​​degrees relative to the lock body when the lock is closed. This lock prevention technology The performance of opening is good, but the performance of anti-violence prying and twisting is poor, such as Chinese patent: ZL 200720062590.6. The other part of the lock head can rotate 360 ​​degrees relative to the lock body when the lock is closed. It i...

AI Technical Summary

Problems solved by technology

[0005] At present, the double-row bead pin idling lock adopts the front and rear cylinder clutch structure. There is a representative Chinese patent: 200720153564.4, which is characterized by using the groove on the pin to directly control the idling pin along the axis of the idling core (front lock core). The clutch of the front and rear lock cylinders is realized by moving in the same direction, while the straight groove leaf (page) idler lock uses the groove on the blade and the relevant cooperation on the idler pin to directly control the axial movement of the idler pin along the idler core to realize the front and rear lock. The clutch of the core is not available in the market at present. The main reason is that each pin hole of the double-row bead pin idling lock only has one pin, so the groove on it is easy to design to the axial direction of the idling core, while the straight groove blade lock Each of the vane slots is generally provided with two vanes, and these two vanes are arranged forward and backward along the axial direction of the idler core, so that the grooves of the front and rear two vanes can directly control the idler pin along the axial direction of the idler core. To move, the grooves on the front and rear blades set together in each blade groove must face the axial direction of the idling core, and the grooves on the two blades must be adjacent and in the same direction, so that the idling that matches it Only pins can be designed. Considering performance stability and processing technology, it is obviously not easy to design.

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