Anti-theft lock head
A lock core and locking element technology, applied in the field of anti-theft lock head, can solve the problems that the unlocking clutch pin is easily damaged, the anti-theft lock loses the anti-theft function, and is difficult to realize.
Active Publication Date: 2015-05-20
广东玥玛智能科技有限公司
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Problems solved by technology
When unlocking, the unlocking clutch pin bears a huge shear force and torque, the unlocking clutch pin is easily damaged, and the service life of the anti-theft lock is reduced; especially in the case of violent and illegal unlocking, the anti-theft lock may lose the anti-theft function due to the breakage of the clutch pin
In order to avoid damage to the unlocking clutch pin, generally increase the volume of the unlocking clutch pin to improve its torque resistance and shear resistance. However, due to the small size of the anti-theft lock, thickening the unlocking clutch pin is limited by the space of the lock body, so it is difficult to achieve
Method used
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[0021] The anti-theft lock of the patent of the present invention includes a lock body shell 1, an active lock cylinder 2, a passive lock cylinder 3, a guiding and stable key 4, a shrapnel interaction key 5, a first key groove 6 (located on the active lock cylinder), a locking element 7, and a ball 71 , connecting piece 72, groove 8 (located on the inner wall of the shell), groove 9, second keyway 10 (located on the active lock cylinder), keyway 11 (located on the passive lock cylinder), protrusion 12, spring leaf 13, key 14, Recessed hole 15, protrusion (or pit) 16, pit (or protrusion) 17, return spring 18, flat bead 19, conversion shrapnel 22, through groove 23, connection groove 24, card hole 25, card slot 26, Card 27.
[0022] See attached figure 1 . The active lock cylinder 2 is provided with several through-slots 23 arranged in parallel, and every two changing shrapnels 22 are alternately arranged in one through-slot, and each shrapnel interaction piece is provided wit...
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The invention provides an anti-theft lock head. The anti-theft lock head comprises a housing, a driving lock cylinder, a driven lock cylinder, a guide stabilizing key, an elastic sheet interlocking key and the like, wherein a key slot parallel to the axis of the lock cylinder is formed on the driving lock cylinder; the elastic sheet interlocking key is positioned in the key slot; one end of the driven lock cylinder close the driving lock cylinder is a hollow cylinder; one end of the driving lock cylinder is inserted into the hollow cylinder of the driven lock cylinder to form an embedded connecting part; and a locking element is arranged on the embedded connecting part; during unlocking, the guide stabilizing key is separated from a groove at the inner wall of the housing and falls into the key slot to connect the driving lock cylinder with the driven lock cylinder so as to form primary locking structure; and the key is continued to be rotated after the primary connecting structure is formed, the driving lock cylinder is connected with the driven lock cylinder by the locking element to form a secondary locking structure.
Description
technical field [0001] The invention relates to an anti-theft lock head, in particular to an anti-theft lock head with an active lock core that can run idly, has good anti-theft performance, and can effectively prevent violent unlocking. Background technique [0002] Chinese patent CN201125790Y discloses an anti-theft lock head, which consists of a lock body shell, a main lock cylinder, an inner lock cylinder, an idler pin, and an unlocking clutch pin. When the key of the lock is inserted, the unlocking clutch pin falls into the active lock. In the keyway on the core, the unlocking clutch pin connects the active lock core with the passive lock core, and the key continues to be twisted, and the active lock core drives the passive lock core to rotate through the unlocking clutch pin to realize unlocking. When unlocking, the unlocking clutch pin bears a huge shear force and torque, the unlocking clutch pin is easily damaged, and the service life of the anti-theft lock is reduce...
Claims
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IPC IPC(8): E05B29/00E05B17/20
Inventor 李浩远
Owner 广东玥玛智能科技有限公司