CN2763416Y - Bicycle shoe-shape lock with error locking proof function - Google Patents

Abstract

The utility model relates to a horseshoe lock for bicycles, particularly a bicycle horseshoe lock with an anti-error locking function. The utility model comprises a lock casing (1), a lock ring (2) with a locking gap, a tension spring (4), a lock brake (7), a spanner (8), wherein the spanner (8) is fixedly connected with the lock ring (2). The utility model is characterized in that the spanner is provided with a button (81), and the press direction of the button is parallel to a guiding slideway plane (6) and is vertical to the sliding direction of the spanner (8). The button (81) is provided with a convex (85) positioned in the guiding slideway (6). Under the state of unlocking, the position positioned on the edges of the guiding slideway (6) and press in the opposite direction and corresponding to the position of the convex (85) is provided with a gap (10) matched with the convex (85). After the horseshoe lock is turned to the proper position, the convex (85) on the button (81) falls in the gap (10) of the guiding slideway (6) to clamp the spanner under the action of a return spring (84). Because the spanner is fixedly connected with the lock ring (2), the lock ring (2) can be clamped. The utility model can effectively avoid the anti-error locking of the lock ring (2) under the conditions of poor roads and thus have better safety.

Description

Bicycle horseshoe lock with anti-error lock function

Technical field: the utility model relates to a kind of for bicycle horseshoe lock, particularly has the bicycle horseshoe lock of anti-error lock function.

Background technology: standard bicycle with horseshoe lock usually by lock housing, be provided with the lock ring of locking gap, stop mechanism, extension spring, parts such as spanner are formed, extension spring, lock ring is slidably disposed in the lock housing, extension spring one end is fixed, the other end is connected with the inboard tail end of lock ring, lock housing is provided with guide chute, spanner one end passes guide chute fixedlys connected with lock ring, drive lock ring as long as press lower ejector lever along guide chute, the opening that makes the lock ring front end stride across lock housing enters the opposite side of lock housing, at this moment stop is stuck in the breach on the lock ring, the lock ring closure can't be opened reach the purpose of locking; Make stop break away from breach on the lock ring when inserting key unlocking, at this moment lock ring is withdrawn into and reaches the purpose of unblanking in the lock housing under the effect of tension spring tension.In actual the use, when bicycle is advanced, particularly after the long-term use of horseshoe lock, the extension spring ageing of performance, pulling force weakens, and jolts when being subjected to the external force effect or meeting the road uneven when riding, make lock ring mistake locking probably, cause bicycle can't move ahead suddenly, even make the cyclist injured.

The utility model content: the purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of bicycle horseshoe lock with anti-error lock function is provided.

The utility model is to achieve the above object by following technical solution: the bicycle horseshoe lock with anti-error lock function, comprise lock housing, be provided with lock ring, extension spring, stop and the spanner of locking gap, spanner is fixedlyed connected with lock ring, it is characterized in that: described wrench is provided with one and pushes the guide chute plane parallel on direction and the lock housing, the button vertical with the wrench glide direction, button is provided with the projection that drops in the guide chute, under the unlocking condition, guide chute with push reciprocal edge on corresponding described raised position be provided with the breach that matches with described projection.

Adopt technique scheme: horseshoe lock of the present utility model is after unblanking to put in place, projection on the button drops under spring action in the breach of guide chute and blocks spanner, because spanner is to fixedly connected with lock ring, therefore also just blocked lock ring, so not being afraid of the road hollow jolts, effectively prevented lock ring mistake lock, therefore safety has preferably been arranged.

The utility model is described in further detail below in conjunction with accompanying drawing, and provide embodiment.

Description of drawings:

Accompanying drawing 1 is the utility model specific embodiment schematic appearance;

Accompanying drawing 2 is a specific embodiment internal construction schematic diagram;

Accompanying drawing 3 is a spanner example structure sectional view.

Specific embodiment: as Fig. 1, shown in 2, horseshoe lock still has lock housing 1, base plate 3, tapered end 5, lock ring 2, stop 7, extension spring 4, spanner 8 members such as grade, lock housing 1 is fixed on the base plate 3, extension spring 4, lock ring 2 is slidably disposed in the lock housing 1, extension spring 4 one ends are fixed, the other end is connected with lock ring 2 inboard tail ends, lock housing 1 is provided with guide chute 6, as shown in Figure 3, wherein wrench 8 constitutes a ducted body by a housing 82 and a support plate 83 that has cavity, button 81 and button 81 back-moving springs 84 place inner chamber, the side is provided with button 81 holes, stretch out from button 81 holes described button 81 ends, push guide chute 6 plane parallel on direction and the lock housing 1, vertical with wrench 8 glide directions, be that the axis of button 81 and the circle central axis of guide chute 6 places circle intersect vertically, button 81 is provided with the projection 85 that drops in the guide chute 6, projection 85 preferably stupefied shape post such as rectangular boss, wrench 8 is fixedlyed connected with lock ring 2 by pin 9, under the unlocking condition, guide chute 6 with push reciprocal edge on corresponding described protruding 85 positions be provided with and described protruding 85 breach that match 10.

When inserting key unlocking, at this moment lock ring 2 is under the effect of extension spring 4 pulling force, be withdrawn in the lock housing 1, after unblanking to put in place, projection 85 on the button 81 drops under back-moving spring 84 effect in the breach 10 of guide chute 6 and blocks spanner 8, because spanner 8 is to fixedly connected with lock ring 2, therefore also just blocked lock ring 2, play safety effect; Before locking, press the button 81 and projection 85 is broken away from enter guide chute 6, press lower ejector lever drive lock ring 2 along guide chute 6 then from the breach 10 of guide chute 6, the opposite side that the opening that makes lock ring 2 front ends stride across lock housing 1 enters lock housing 1 is finished and is locked.

Claims (2)

1, a kind of bicycle horseshoe lock with anti-error lock function, comprise lock housing (1), be provided with the lock ring (2) of locking gap (10), extension spring (4), stop (7) and spanner (8), spanner (8) is fixedlyed connected with lock ring (2), it is characterized in that: described wrench (8) is provided with guide chute (a 6) plane parallel of pushing on direction and the lock housing (1), the button (81) vertical with wrench (8) glide direction, button (81) is provided with the projection (85) that drops in the guide chute (6), under the unlocking condition, guide chute (6) with push reciprocal edge on corresponding described projection (85) position be provided with the breach (10) that matches with described projection (85).

2, the bicycle horseshoe lock with anti-error lock function according to claim 1, it is characterized in that: described wrench (8) constitutes a ducted body by a housing (82) and a support plate (83) that has cavity, button (81) and button (81) back-moving spring (84) place inner chamber, the side is provided with button (81) hole, stretch out from button (81) hole described button (81) end, support plate (83) upper edge of bottom is pushed direction and is provided with elongated slot, and described projection (85) extend out to from elongated slot in the guide chute (6).

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