A Straight Groove Blade Idling Lock Head

Abstract

The invention relates to a straight groove type blade idling lock, which comprises a lock head, an idling cylinder and a lock cylinder sleeve, wherein the idling cylinder is provided with a key hole, the idling cylinder is provided with a plurality of blade grooves, the inside of each blade groove is provided with a front blade, a back blade and a blade spring, each front blade and each back blade are respectively provided with a V-shaped concave groove, the idling cylinder is also provided with an idling pin groove, the inside of the idling pin groove is provided with an idling pin, the idling pin is provided with reinverted V-shaped flanges, the reinverted V-shaped flanges are matched with the V-shaped concave grooves on the front blades and the back blades, the idling pin is also provided with a surface A or a surface B, the idling cylinder is provided with a side pin hole, a side pin is arranged in the side pin hole, a surface C or a surface D of the side pin is matched with the surface A or the surface B of the idling pin, the lock cylinder sleeve is provided with an unlocking engaging and disengaging pin hole, the lock body is provided with a locking hole, and unlocking engaging and disengaging pins are arranged in the engaging and disengaging pin hole and the side pin hole. When the lock is locked, the idling cylinder and the lock cylinder sleeve are separated, the idling cylinder can freely rotate, and the lock is not unlocked, so the anti-theft property is higher.

Description

Technical field [0001] The invention relates to a lock, in particular to a straight slot type blade idling lock head. Background technique [0002] Straight slot type mechanical blade lock is characterized by a number of leaf (page) slot on the lock core, the blade slot runs through the lock core in the radial direction of the lock core, and each blade slot generally has two shafts along the lock core. For the blades arranged in the front and back, when the matching key is inserted, the two blades move in opposite directions. Some of the lock cylinders cannot rotate 360 ​​degrees relative to the lock body when the lock is closed. This lock prevention technology The opening performance is good, but the anti-violent prying performance is poor, such as Chinese patent: ZL200720062590.6. When the lock is closed, the lock cylinder of the other part of the lock cylinder can rotate 360 ​​degrees relative to the lock body. It is a three-layer structure by setting a rotating sleeve betwee...

AI Technical Summary

Problems solved by technology

[0003] In addition, there is a straight groove mechanical blade lock with a lock cylinder idling. There is also a front and rear cylinder structure. It can rotate 360 ​​degrees when it is closed, so the front lock cylinder is also called idling cylinder. The processing technology is relatively simple, the production cost is low, and the outer diameter of the lock head can be made smaller; Reasonable, if the product structure design is slightly flawed, there are often problems such as poor stability and unguaranteed performance, such as Chinese patent ZL200720062904.2

[0004] The above two straight groove blade idle locks have a common feature, that is, the "∨" shaped grooves on the blades (pages) on the idle core (idle core) are all aligned in the radial direction of the lock cylinder. , so the idling pin directly controlled by the leaves (pages) can only move along the radial direction of the idling core, so it is easier to realize this kind of idling lock by making the lock head into a three-layer structure, but it is difficult to realize it as a front and rear structure. The clutch of the front and rear bladders is done indirectly, but the structure is often complicated, the performance is unstable, and the mutual opening rate of the products is high, so it is difficult to realize the mass production of the products.

[0005] At present, the double-row bead pin idling lock adopts the front and rear cylinder clutch structure, which is more representative of the Chinese patent: 200720153564.4, which is characterized by the use of grooves set on the pins 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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