CN2122911U

CN2122911U - Safety bicycle bell with double-ring

Info

Publication number: CN2122911U
Application number: CN 91221201
Authority: CN
Inventors: 王体义
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-27
Filing date: 1991-11-27
Publication date: 1992-11-25

Abstract

The utility model relates to a four-safety bicycle lock with double rings, which comprises a lock case, a lock core, double lock rings, a lock ring returning tension spring clamping claw, a locking pawl, a clamping claw and locking pawl pressing spring, a claw axle, a shifting rod, and a shifting rod release spring. The utility model has a plurality of safety locking positions and firm lock ring, having the advantages of convenient operation and anti-theft performance improvement.

Description

Safety bicycle bell with double-ring

The utility model relates to a kind of bicycle lock in the operation transportation.

Chinese patent 88218093.2 provides a kind of " half formula bicycle lock of two ratchets ", its principal character is to have and the paw circle of lock core interlock, two ratchet, ratchet shell fragment, just as bicycle rear axle chain flywheel structure, two ratchets are upspring and are withstood lock ring, pin wheel, and key drives the lock core rotation and pushes down two ratchets, lock ring opens automatically, this bicycle lock tapered end part theftproof performance is good, but lock ring adopts the moving half-turn of half formula, fixing half-turn structure, not as existing lock lock ring is inserted in firmly, conveniently.

The purpose of the utility model is to develop a kind of have a plurality of insurance lock-bits, lock ring is firm, easy to use, theftproof performance the is good novel lock of dicyclo four insurances.

Fig. 1 is the utility model structural representation;

Fig. 2 is a lock core interlinked mechanism structural representation.

Technical solution of the present utility model is: this dicyclo four safety lock for bicycle have lock housing (1), lock core (2), also have simultaneously two lock rings (3,4) reach and two lock rings (3,4) interlinked mechanism that is connected, be that lock ring returns extension spring (5,6), claw (7,8), lock pawl (9,10), claw lock pawl holddown spring (11,12), pawl axle (13,14), driving lever (15), driving lever return spring (16), driving lever (15) is fixed on the lock core (2), driving lever return spring (16) two ends are separately fixed on lock housing (1) and the driving lever (15), claw (7,8), lock pawl (9,10), claw lock pawl holddown spring (11,12) be set in pawl axle (13,14) on, pawl axle (13,14) be fixed on the lock housing (1), driving lever (15) two ends respectively with the lock pawl (9,10) be flexibly connected claw (7,8) be fixed in On the lock pawl (9,10).

Embodiment: as shown in the figure, this dicyclo four safety lock for bicycle have lock housing (1), lock core (2), lock ring (3,4), lock ring returning pull-spring (5,6), claw (7,8), lock pawl (9,10), claw lock pawl holddown spring (11,12), pawl axle (13,14), driving lever (15), driving lever return spring (16), lock housing (1) has the passage slotted hole of twin-lock ring, lock ring (3,4) all has lock pawl hole (17 on respectively, 18) and claw breach (19,20), lock pawl (9,10) also has fixing with it whole runner block (21,22) with lock pawl arm (23,24), plectrum (25,26), claw (7,8) be the shape of cranking arm, has the plectrum breach, claw (7,8) fold in lock pawl (9,10) on, rely on plectrum breach and plectrum (25,26) identical location, claw lock pawl holddown spring (11,12) cover is around pawl axle (13,14) on, adopt and around form, driving lever (15) middle part is fixed on the lock core (2) by jump ring, driving lever (15) two ends have shift fork (27,28), these shift forks (27,28) be inserted in lock pawl (9 respectively, 10) runner block (21,22) Nei chute.

The course of work: with the hands press twin-lock ring (3 respectively, 4), make in its lock housing of being inserted in the opposite correspondence (1) hole, until putting in place, this moment, the twin-lock ring (3,4) the lock pawl hole (17 on top, 18) and claw breach (19,20) put in place simultaneously corresponding to lock pawl (9,10), claw (7,8), lock pawl (9,10), claw (7,8) at claw lock pawl holddown spring (11,12) under the pressure in opposite directions, fall into lock pawl hole (17 simultaneously, 18) with claw breach (19,20) in, so always have four cards, pawl positions locking to dicyclo, so claim " dicyclo four insurances ", when unblanking, as long as key is driven lock core (2) clockwise direction to rotate, the shift fork (27 at driving lever (15) two ends then, 28) at lock pawl (9,10) the upper hopper chute piece (21,22) make the circular arc compound motion in the chute, the result of motion overcomes claw lock pawl holddown spring (11,12) pressure in opposite directions and push open the lock pawl (9,10) and and then drive claw (7,8) make opening movement, the lock pawl, claw is from lock ring (3,4) the lock pawl hole (17 on, 18) and claw breach (19,20) withdraw from, twin-lock ring (3,4) at each self-locking ring returning pull-spring (5,6) return under the effect of power, lock leaves.

This bicycle lock has the good effect that a plurality of insurance lock-bit theftproof performances are multiplied, lock ring is firm, easy to install.

The accompanying drawing marking explanation:

1-lock housing 2-lock housing

3,4-lock ring 5,6-lock ring returning pull-spring

7,8-claw 9,10-lock pawl

11,12-claw lock pawl holddown spring 13,14-pawl axle

15-driving lever 16-driving lever return spring

17,18-lock pawl hole 19,20-claw breach

21,22-runner block 23,24-lock pawl arm

25,26-plectrum 27,28-shift fork

Claims

1, a kind of dicyclo four safety lock for bicycle, has lock housing (1), lock core (2), it is characterized in that also having two lock rings (3,4), lock ring returning pull-spring (5,6), claw (7,8), lock pawl (9,10), claw lock pawl holddown spring (11,12), pawl axle (13,14) and driving lever (15), driving lever return spring (16), driving lever (15) is fixed on the lock core (2), driving lever return spring (16) two ends are separately fixed on lock housing (1) and the driving lever (15), claw (7,8), lock pawl (9,10), claw lock pawl holddown spring (11,12) be set in pawl axle (13,14) on, pawl axle (13,14) be fixed on the lock housing (1), driving lever (15) two ends respectively with the lock pawl (9,10) flexibly connect claw (7,8) be fixed in lock pawl (9,10) on.

2,, it is characterized in that all having respectively on the lock ring (3,4) lock pawl hole (17,18) and claw breach (19,20) according to dicyclo four safety lock for bicycle of claim 1.

3,, it is characterized in that locking pawl (9,10) and also have fixing with it whole runner block (21,22) and lock pawl arm (23,24), plectrum (25,26) according to dicyclo four safety lock for bicycle of claim 1.

4,, it is characterized in that claw (7,8) is the shape of cranking arm, and has the plectrum breach according to dicyclo four safety lock for bicycle of claim 1 or 3.

5,, it is characterized in that claw lock pawl holddown spring (11,12) adopts and around form, cover is on pawl axle (13,14) according to dicyclo four safety lock for bicycle of claim 1.

6, according to dicyclo four safety lock for bicycle of claim 1, it is characterized in that driving lever (15) middle part is fixed on the lock core (2) by jump ring, driving lever (15) two ends have shift fork (27,28), and shift fork (27,28) is inserted in the interior chute of runner block (21,22) of lock pawl (9,10).