CN85202807U

CN85202807U - Bicycle check-lock

Info

Publication number: CN85202807U
Application number: CN 85202807
Authority: CN
Inventors: 张志权
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-07-05
Filing date: 1985-07-05
Publication date: 1986-05-21

Abstract

The utility model discloses a bicycle checklock, which is characterized in that the bicycle checklock cancels a lock ring spanner of the existing bicycle lock, installs a turn button outside the lock casing; the user rotates gears of the lock casing by the turn button, consequently, the user makes the lock ring move. For the sake of preventing the gears from reversing effectively, the same shaft which installs the gears is provided with a ratchet mechanism; consequently, the ratchet mechanism fixes the position of the lock ring to obtain the purpose of locking. The checklock is convenient and safe in use.

Description

Bicycle check-lock

The utility model belongs to a kind of lock of bicycle use.

As everyone knows, existing fixed formula bicycle lock is that the parts such as annular lock ring by lock housing, pellet shot from a slingshot core, opener, spring and strap wrenches constitute, and can lock bicycle lock by lower ejector lever.But,, then brought safety hazard to bicycle because the spanner on the lock ring is exposed at outside the lock housing, if knock the spanner that is exposed to outside the lock housing with weight, just be easy to make the interior gib of lock to throw off from the groove of lock ring, lock ring is return lock housing under the effect of tension spring, cause lock to be pried open.Though a kind of chain lock is arranged at present, reliable,,, use very inconvenient owing to can not be fixed on the bicycle.

The safety lock that provides one to be fixed on the bicycle is provided task of the present utility model.From outer the watching of lock, there is not the spanner outside the lock housing of being exposed on the lock ring again.Unless insert lockhole with key, stir opener, can't impose external force and make lock ring return lock housing.

The utility model is achieved in that adorns an axle in lock housing, an end cogged and a ratchet of axle.The other end of axle stretches to the lock housing outside, and a knob is housed.When core rotates, stir ratchet, make it break away from ratchet, at this moment, gear can freely rotate, and is to be in locking-in state if at this moment lock, that not, the toothed lock ring that is meshed with gear is return lock housing under the tension of big spring.Generally speaking, because the tension of little spring, ratchet props up ratchet tightly, make ratchet can only do unidirectional rotation, prevent the gear counter-rotating, like this, when rotary knob, can make the gear driven lock ring stretch to the other end from an end of lock housing, prevented that again lock ring from returning lock housing, finished the overall process of lock car.

Structure of the present utility model will at length be illustrated by following embodiment and accompanying drawing.

Fig. 1: safety lock for bicycle scheme drawing.

Fig. 2: the A-A cutaway view shown in Fig. 1.

Fig. 3: safety lock for bicycle removes the view behind the lock shell plate, and B promptly shown in Figure 2 is to view.

The utility model inner structure can adopt existing pellet shot from a slingshot core (1), press shown in the accompanying drawing, a little axle of device (4) in the lock housing of forming by base plate (2) and housing (3), the ratchet (5) of a rotating special shape of energy of device on the axle, the ratchet middle part contacts with core (1) end Cylinder, make the claw of ratchet (5) when core (1) rotates, can break away from ratchet (6), cause ratchet (6) and gear (7) to turn round freely.Adorn an axle (8) that can rotate on the close lock housing of core (1), an end of axle stretches to the lock housing outside, installs a knob (9), and ratchet (6) and gear (7) are fixed on the axle (8) of lock housing inboard.The position of axle is meshed with toothed lock ring (10) with gear (7) and is as the criterion.Lock ring (10) outside suitable position is processed into dentation, and the modulus of tooth is identical with the modulus of gear (7).One end of lock ring is connected with big spring (11).Like this, if lock when being in locking-in state, in case ratchet (5) is stirred by core (1) and broken away from ratchet (6), lock ring (10) is return lock housing immediately under the tension of big spring (11), and lock is opened.

Under keyless situation, because little spring (12) one ends are connected on the ratchet (5), the other end is fixed on the lock housing, thereby forces ratchet (5) to be meshed with ratchet (6), and ratchet (6) can not be reversed, and can only unidirectionally rotate.If at this moment lock is to be in opening, then all be fixed on the same axle (8) because of ratchet, gear, knob, that is not, the angle that the knob revolution is certain excessively, ratchet is just let slip a tooth, and gear also just turns over certain angle, and the lock ring that is meshed with gear (10) also turns over certain angle.About knob one circle, lock ring (10) just in time inserts in another stomidium of lock housing.Because ratchet (6) can only unidirectionally turn round, after revolution finished, the position of ratchet (6) and gear (7) all was fixed, thereby lock ring (10) also is fixed on locked position tightly, can not return lock housing, reached the purpose of pinning.From the above, the size of gear (7) diameter can be pinned bicycle with knob and is advisable about one week.

Because the lock ring of this lock does not have the spanner of the lock housing of exposing to, only rely on the motion of gear and drive lock ring, thereby security insurance.When unblanking, as long as insert the pellet shot from a slingshot core with key, rotate, lock ring just can be return lock housing automatically.During the lock car, as long as about a week can lock knob.Easy to use, safe and reliable.

Claims

1, a kind of lock of bicycle use, it comprises lock housing, pellet shot from a slingshot core [1], the big spring [11] that is connected with lock ring, it is characterized in that having in the lock housing a gear mechanism by knob [9] drive, gear [7] is meshed with toothed lock ring [10], and can make lock ring [10] stretch to the other end by an end of lock housing, also installed simultaneously one in the lock housing and prevented that lock ring [10] from returning the escapement that goes in the lock housing, and the axle [8] of fixed gear wheel [7], ratchet [6], knob [9].

2, according to the lock of the described bicycle use of claim 1, it is characterized in that in the gear mechanism that knob (9) and gear (7) are fixed on the same axle (8), gear (7) is meshed with toothed lock ring (10).

3,, it is characterized in that the outside suitable position of lock ring (10) is processed into dentation according to the lock of claim 1 or 2 described bicycle uses.

4, according to the lock of the described bicycle use of claim 1, it is characterized in that escapement comprises that one is fixed on ratchet (6) on the same axle (8) with gear (7), and the ratchet (5) that under spring (12) effect, prevents ratchet (6) counter-rotating, simultaneously, keep in touch with core (1) all the time in the middle part of ratchet (5).