CN2073014U - Crab form bicycle lock - Google Patents

Abstract

The utility model relates to a crab-shaped bicycle lock, which omits the handle on the lock ring of an existing crab-shaped bicycle lock, using a wire rope fixed on the two ends of the lock ring to pull to lock and unlock the lock. The wire rope is wound on a rolling wheel connected with the end of a lock core, a key rotates the lock core and the rolling wheel, and a lock ring switch is pulled by the wire rope. The utility model overcomes the disadvantages of the existing crab-shaped bicycle lock with a handle, having the advantages of safety and convenient operation, and the using habit of people has no need to be changed.

Description

Crab form bicycle lock

The utility model belongs to lockset.

The existing lock that is directly fixed on the bicycle has two kinds of crab shape and fork arm shapes.The utility model only relates to crab shape.The present crab shape bicycle lock that uses, lock core adopts general non-the lock key of cylinder type not open, and it is locked the aft closure ring end and is inserted among the lock housing, forms one and closes the shape ring-type, so this lock has certain safety.Use more conveniently in addition, obtained widely using.But be fixed with the handle of being convenient to shut on the lock ring of this lock, this handle is exposed to outside the lock housing, easily impacted by weight and make the lock open.

The utility model has removed the handle on the lock ring, affect to shut with the wire rope that is fixed in the lock ring two ends and unblank, and wire rope is to be wrapped on the rolling wheel that links with the lock core end, thereby key rotation lock core rotates rolling wheel, makes wire rope affect the lock ring switch.Overcome the shortcoming of the crab shape bicycle lock that handle is arranged of present use like this, make crab shape bicycle lock safer, use more convenient.

Accompanying drawing one is that figure cuts open in the crab shape bicycle lock master office of looking.1 is lock housing among the figure, and 2 is lock core, and 3 is lock ring, 4 is the lock ring groove, and 5 is pintle hook lock, and 6 is the pintle hook lock aperture, 7 is the pintle hook lock guide rail, and 8 is the pintle hook lock spring, and 9 is the pintle hook lock spring base, 10 is right wire rope or high strength cord, 11 is left wire rope or high strength cord, and 12 is rolling wheel, and 13 is pin or pulley, 14 is rivet, and 15 is the lock installing hole.

Accompanying drawing two is that figure cuts open in the crab shape bicycle lock left side office of looking and figure cuts open in the right side office of looking, and marks identical with accompanying drawing one.

Main points of the present utility model are, use common lock cylinder (2), terminal directly coaxially are welded with rolling wheel (12) at it, or lock core (2) is terminal and rolling wheel (12) between link by a pair of gear; Oppositely be wound with two wire rope (10), (11) or high strength cord (10), (11) on the rolling wheel (12), these two wire rope (10), (11) or high strength cord (10), (11) are separately fixed at lock ring (3) two ends; Pintle hook lock (5) is installed in respectively in pintle hook lock guide rail (7) and the pintle hook lock spring base (9) with pintle hook lock spring (8), pintle hook lock aperture (6) can allow wire rope (11) or high strength cord (11) pass freely through, and wire rope (11) or high strength cord (11) are walked around two pulleys (13) or the pin (13) that is positioned at top, pintle hook lock (5) both sides; Pintle hook lock (5) matches with lock ring upper groove (4); These mechanisms all are encapsulated among the lock housing (1).

In use, right or left-handedly moving lock ring (3) is opened or closed in lock core (2) with key.Under lock is closed situation, key is inserted lock core (2), the turn key cylinder of turning left (2) can be opened, thereby makes the rolling wheel (12) that links with lock core (2) rotation of also turning left.At this moment the wire rope (10) that is wrapped in right half wheel of rolling wheel (12) loosens, and wire rope (11) is then turned left to rotate and progressively is wrapped on half wheel of rolling wheel (a 12) left side along with rolling wheel (12).And rolling wheel (12) has just been turned left when rotating, and just wire rope (11) is collapsed tightly, thereby collapse tight wire rope (11) pintle hook lock (5) is lifted from lock ring groove (4), makes that lock ring (3) can freely-movable.Along with wire rope (11) progressively is wrapped on half wheel of rolling wheel (a 12) left side, wire rope (11) is drawing lock ring (3) and is moving right lock is opened.

Closing lock then is opposite program.The key turn of turning right, lock core (2) drives rolling wheel (12) rotation of also turning right.At this moment wire rope (11) loosens, wire rope (10) is then gone up toward right half wheel of rolling wheel (12) and is twined, and traction lock ring (3) is to left movement, be inserted in lock housing (1) up to lock ring (3) left part, pintle hook lock (5) snaps in lock ring groove (4) under the effect of pintle hook lock spring (8), promptly finish the process of closing lock, key just can be extracted lock core (2) out.

In embodiment of the present utility model, lock core (2) is a coaxial welding with rolling wheel (12), substitute pulley (13) with pin (13), with wire rope (10), (11) substitute high strength cord (10), (11), and wire rope (10) is fixed in lock ring (3) right part, wire rope (11) is fixed in lock ring (3) left part and plays about 3/7 place, lock ring groove (4) is positioned at lock ring (3) right part and plays about 1/9 place, and when lock ring groove (4) is positioned under the pintle hook lock (5), lock ring (3) left part is inserted in lock housing (1) just and is headed on rivet (14), lock housing (1) interior diameter 90～98mm, external diameter 110～130mm is fixed on lock on the cycle frame by lock installing hole (15) and two inboard strip holes.

The utility model uses safety, convenient, does not need to change the usual use habit of people, and compare processing with present normally used crab shape bicycle lock upper and uncomplicated, and original production process does not need to change basically, only increases a little cost.

Claims (4)

1, a kind of crab shape bicycle lock, it is made up of lock housing, lock core, lock ring, pintle hook lock, pintle hook lock guide rail, pintle hook lock spring, pintle hook lock spring base, wire rope or high strength cord, rolling wheel, pulley or pin, it is characterized in that the lock ring two ends that have groove are fixed with wire rope or the high strength cord that oppositely is wrapped on the rolling wheel.

2, crab shape bicycle lock according to claim 1 is characterized in that rolling wheel and common lock core end link.

3,, it is characterized in that wire rope or high strength cord pass freely through aperture on the pintle hook lock and walk around two pulleys or the pin that is positioned at top, the pintle hook lock left and right sides according to claim 1,2 described crab shape bicycle locks.

4, according to claim 1,2,3 described crab shape bicycle locks, it is characterized in that pintle hook lock and pintle hook lock spring are installed in pintle hook lock guide rail and the pintle hook lock spring base.