CN201457536U - Bicycle password head lock - Google Patents

Abstract

The utility model discloses a bicycle password head lock, comprising a lock body, a pin shaft, a password changing ring, a baffle gear ring, a baffle plate, a location plate, a fixed block and two groups of password teeth, wherein, the baffle gear ring is provided with two password holes and a plurality of trapping holes with different depths; the sizes of the password holes and the angle between the two password holes are the same as the sizes of the two groups of password teeth and the angle between the two groups of password teeth on a lock shaft; the lock shaft penetrates the password holes when the lock is opened and closed; the trapping holes have different depths and play an unlocking effect by a misguide technology; the trapping hole and a lock body U-shaped structure and the like are arranged in the password hole to achieve the purpose of preventing technically unlocking and violently unlocking. A password ring can be rotated without trace when in a locking state and an unlocking state; and the bicycle password head lock has convenient use and simple structure, is suitable for installation use of various bicycles.

Description

A kind of bicycle password head lock

One, technical field

The utility model relates to a kind of bicycle headstock lock by unlock password, refers in particular to the coded lock that is fixedly mounted on the bicycle headstock.

Two, background technology

Known bicycle lock is U-shape lock or is fixed on the common lock of back on the vehicle frame that these locksets all need key operated.And U-shape lock carries inconvenience by bike the time, influences safety by bike.

Three, summary of the invention

In order to overcome the defective of existing bicycle lock, the utility model is a kind of simple in structure, and is easy to use, do not need key unlocking, and anti-theft is good, is fixed on the mechanical code lock on the bicycle headstock.

The technical scheme that its technical matters that solves the utility model adopts is: coded lock comprises lock body, lock shaft, changes the sign indicating number circle, keeps off gear ring, baffle plate, locating plate, fixed block, two groups of password teeth, and the retaining gear ring is established two code holes and many deep mixed trap holes.Angle between code hole size, two code holes is identical with two groups of password tooth sizes, the angle on the lock shaft, and code hole passes when open and close is locked for lock shaft.The trap hole depth is shallow to differ, and works the technology unlocking effect that misleads.Establish two groups of password teeth on the lock shaft, every group of password tooth is made up of 3 or many password teeth, and the password circle also is made up of with the password circle 3 or many.Have in the lock body and the corresponding lock shaft of lock shaft hole, make lock shaft energy sway in lock body.One end of lock shaft is established locating plate, plays the role of positioning during locking.After changing sign indicating number circle and setting password figure, be inserted in the retaining gear ring and form a password circle.Change the sign indicating number circle and establish ten five equilibrium internal tooths, the retaining gear ring is established ten five equilibrium external tooths, and the two is integrated and makes circular movement.

Lock body is a U type structure, U type two end internal diameters equal the bicycle front fork outer shaft diameter, and two screw holes are established at U type two ends, and are corresponding with two screw holes of lock on the fixed block, the lock fixed block is directly fixed or is welded on the front fork outer shaft, and U-shape lock body and fixed block are fixed by two screws.One side of the inside and outside axle of front fork respectively has the identical lockhole of size, and when in rotation certain angle, the lockhole on the inside and outside axle of front fork overlaps, and lock shaft can enter in the lockhole during locking, and outer shaft is blocked by lock shaft in making, and front vehicle wheel can not be done the direction rotation.Baffle plate and lock body are fixed together with screw, and lock shaft is with locating plate fixing or casting with welding.

The beneficial effects of the utility model are by designs such as the wellhole of trapping in the code hole, lock body U-shaped structures, to reach the purpose that prevents that technology unlocking and violence from opening.When unlocking condition and blocking, can the rotational password circle and leave no trace, easy to use, simple in structure, be applicable to that various bicycles install and use.

Four, description of drawings

Fig. 1 is the section-drawing of bicycle password head lock unlocking condition

Fig. 2 is the section-drawing of bicycle password head lock blocking

Fig. 3 is the section-drawing of password circle

Fig. 4 is the bicycle front fork planar view

Among the figure 1, lock body; 2, lock shaft; 3, password circle; 4, password tooth; 5, baffle plate; 6, locating plate; 7, screw hole; 8, fixed block; 9, screw hole; 10, screw; 11, change the sign indicating number circle; 12, retaining gear ring; 13, code hole; 14, code hole; 15, trap hole; 16, axle in the front fork; 17, lockhole; 18, front fork outer shaft.

Five, the specific embodiment

Suppose that with 3 password circles be example, specific implementation process of the present invention be described further below in conjunction with accompanying drawing:

Installation process: in Fig. 3, every changes and is inserted in retaining gear ring 12 in the sign indicating number circle 11, (setting the position of password figure before being inserted in) is combined into password circle 3, every password circle 3 is put into code hole on the lock body 1, lock shaft 2 passes every password circle 3 from right to left successively, wearing code hole 13,14 o'clock adjusts by rolling password circle 3, two groups of password teeth 4 that two code holes 13,14 in the retaining gear ring 12 are aimed on the lock shaft 2, every is passed successively, respectively remember every each password figure of aiming at scale mark when passing, just the password combination number of this lock.Baffle plate 5 is fixing with lock body 1 usefulness screw 10.Installation.

Use: in Fig. 1, behind password circle 3 rotational alignment passwords, lock shaft 2 is moved to the left, locating plate 6 is blocked by baffle plate 5, make lock shaft 2 no longer toward moving left, each password tooth 4 is all at lock body 1 interior location (as Fig. 2) at this moment, and password circle 3 is free to rotate, lock shaft 2 enters the lockhole 17 interior (as Fig. 2) that the inside and outside axle of front fork overlaps, and be blocking this moment.In Fig. 2, behind the aligning password, lock shaft 2 moves right, and password tooth 4 is blocked by baffle plate 5, makes lock shaft 2 no longer toward moving right, and each password tooth 4 is again at lock body 1 interior location (as Fig. 1) at this moment, and be unlocking condition this moment.

Change a yard process: after aiming at password, pull down baffle plate 5, lock shaft 2 is just all pulled out, and takes out password circle 3, after changing sign indicating number circle 11 and reconfiguring Xinmi City's yardage with retaining gear ring 12, reinstalls by the embodiment installation process.

Claims (3)

1. a bicycle password head lock comprises password circle (3), retaining gear ring (12), lock shaft (2), lock body (1), baffle plate (5), locating plate (6), fixed block (8), it is characterized in that keeping off trap hole (15) is set in the gear ring (12), lock body (1) is the U-shaped structure, and screw hole (9) is established at the U-shaped two ends.

2. a kind of bicycle password head lock according to claim 1 is characterized in that every group of password be made up of 3 or many password circles (3).

3. a kind of bicycle password head lock according to claim 1 is characterized in that baffle plate (5) and lock body (1) are fixed together with screw (10), and lock shaft (2) is with locating plate (6) fixing or casting with welding.

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