CN2169677Y - Bicycle lock - Google Patents

Abstract

The utility model relates to a vehicle lock which is especially suitable for motorcycles and bicycles, being composed of a lock head, an arc-shaped lock beam, a reset spring and a lock beam box. The utility model is characterized in that the arc-shaped lock beam is hollow, and the reset spring is arranged in the hollow part of the arc-shaped lock beam; one end of the reset spring is fixed at the head end of the lock beam, and the other end of is fixed on a lock body, and a groove is arranged on the lock beam at a part which is contacted with the lock body, so that the lock beam can be slid. The utility model has the advantages of simple structure, material saving and anti-prizing, being an ideal lock.

Description

Bicycle lock

The utility model discloses a kind of lock, be suitable for bicycle, motorcycle especially, belong to field of lockset.

Existing arc beam lock, when lock was in opening, lock bridge contracted in the lock bridge shell, made lock bridge and lock bridge shell overlapping many, had both caused waste of material, and aesthetic property is affected, and the pick-proof poor performance.

Main purpose of the present utility model is that lock a kind of few with material, attractive in appearance, firm, that the pick-proof performance is good is provided.Secondary objective provides a kind of lock of establishing groove on arc lock bridge inner side edge.Purpose provides a kind of lock that utilizes Magnetic lockwork once more, makes its key copy difficulty, and security performance is good.

Technical solution of the present utility model is, this lock has tapered end, return spring, arc lock bridge and lock bridge box, its special character is, this arc lock bridge is hollow, it is hollow that return spring is positioned at lock bridge, one end of this spring is fixed on the head end of lock bridge, and the other end is fixed on the lock housing that stretches in the lock bridge, partly establishes sliding tray with the lock bridge that this lock housing is touched mutually.Fixedly the screw of tapered end, lock bridge box is positioned at the lower end of lock bridge under the locking states.Its cross section of the lock bridge of the technical program can the side of being, also can be round, also can make other shape as required.

Establish groove on the described lock bridge medial surface of the technical program, help key like this and promote the lock core locking or discharge lock bridge with the rectilinear motion form.If establish groove on the lateral surface of described lock bridge, help key and order about the lock core locking or discharge lock bridge with rotation formula.

The described lock core of the technical program is preferably Magnetic lockwork, and this Magnetic lockwork is by last lower casing sealing, so that be installed in the housing of lock housing formation, slotted hole is established in the stage casing of its bonnet, so that the drive pin that is fixed on the lock core body moves within it.

The described Magnetic lockwork of the technical program is the variable cipher lock core preferably, establishes a latch in the outside on two garble wheels engagements limit, and this latch meshes with a garble wheel when stop.

Because arc lock bridge of the present utility model is hollow, establish return spring in it, and hold-down screw is positioned at the lock bridge lower end, lock core is a Magnetic lockwork, makes it compared with prior art, has that cost is low, attractive in appearance, pick-proof, the advantage that security performance is good.

Accompanying drawing and drawing explanation.

The front view of an embodiment of Fig. 1-the utility model.

The side elevation in partial section of Fig. 2-Fig. 1.

The A-A of Fig. 3-Fig. 1 is to sectional view.

The B-B of Fig. 4-Fig. 1 is to sectional view.

The front view of lock core among Fig. 5-Fig. 1.

The C-C of Fig. 6-Fig. 5 is to sectional view.

Wherein: the 1-rivet, the 2-lock housing, 3-locks the end, 4-lock core, the 5-return spring, 6-tubular rivet, 7,16, the 19-screw, the 8-backing plate, the 9-rear plate, 10-nut, 11-base plate, 12-lock bridge box body, 13-lock bridge lid, 14-lock bridge base plate, 15-arc lock bridge, 17-lock bridge box clamp, the 18-magnetic card key, 20-lock housing clamp, 21-groove, 22-drive pin, 23, the 28-screw, 24-intubate, 25-intubate spring, 26-becomes sign indicating number spur gear, 27-lock core lower casing, 29-cover plate, the 30-jam plate, 31-magnetic post, 32-backplate, 33-backplate leaf spring, 34-lock core body, 35-lock core upper casing, the 36-spring, 37-latch, 38-slotted hole.

With the accompanying drawing be below embodiment the utility model is described in further detail, as Fig. 1-shown in Figure 5.Lock core of the present utility model is a Magnetic lockwork.Lock core is by lock core upper casing 35, lower casing 27, and lock core body 34 is positioned at the magnetic post 31 of lock core body, the drive pin 22 of fixedlying connected with lock core body, intubate 24, intubate spring 25, cover plate 29, backplate 32, backplate leaf spring 33, and two become sign indicating number spur gears 26, latch 37 constitutes.The cross section of arc lock bridge 15 is square, and an end of back-moving spring 15 is fixed on the crotch of rolling on the lock housing, and to be positioned at lock bridge hollow behind the folding on the end of this lock housing, establishes crotch on endways.Divide on lock bridge lower casing contact with folding part on this lock housing and to establish groove, so that the lock bridge slip, the length of this groove accounts for 1/2nd of lock bridge length.Its other end is fixed on the hook of arc lock bridge head end.Establish groove 21 on the inner side edge of arc lock bridge.The lock bridge box has base plate 11, and box body 12 and lid 13 constitute.Its installation process is, at first will be in aggregates by the requirement assembling of figure by the lock core that said elements constitutes, and put it into the lock housing cavity, with rivet upper and lower lock housing, lock core being fixed as one then gets final product.When being installed in bicycle, under lock was in opening, by screw 7, backing plate 8, rear plate 9 and nut 10 were fixed on any of back fork truck, are fixed on by lock housing clamp 20 and screw 19 on another aspect of rear vehicle fork with lock body.By lock bridge box clip 17, screw 16 is fixed on the lock bridge box on the corresponding points of rear vehicle fork another side again.But when installing, need lock bridge lid 13 is taken off, by the hole on the lock bridge box 12 that screw 16 is fastening, then lock bridge lid 13 is installed.Operating principle is that when lock bridge being drawn in the lock bridge box, the drive pin 22 on the lock core body enters in the groove of lock bridge box, locks to be in locking dress attitude.At this moment, lock body trip bolt 19, lock bridge box trip bolt 16 are covered by lock bridge, and lock bridge box and lock body can not unload.When magnetic card key is inserted Magnetic lockwork, key cipher and the acquaintance of magnetic core password, the magnetic post leaves cover plate 29 and enters in the lock core body, continues to promote key, and lock core body drive drive pin moves forward and leaves groove 21, lock bridge is released, then lock bridge leaves the lock bridge box and continues to retreat under the effect of return spring 5, returns to original position until return spring, and the latter half of lock bridge stretches out from the other end of lock housing, so far, lock is unlocked.Repeat above motion process later on.Because magnetic pin lock core capacity is big, can reach more than 2,400 ten thousand and not repeat, so good confidentiality.Because of having established two variable cipher wheels, can be equipped with four groups of keys again, first, second, third and fourth key can form one group of circulation.Promptly, can enable second group of key by becoming sign indicating number, by that analogy in case first key kit is lost.

Lock core of the present utility model can also be the electronic cipher lock core except that Magnetic lockwork, mechanical cipher lock cylinder and mechanical billiard lock core.

Claims (4)

1, a kind of lock, it has tapered end, return spring, arc lock bridge, lock bridge box, it is characterized in that, this arc lock bridge is hollow, it is hollow that return spring is positioned at lock bridge, and an end of this spring is fixed on the head end of lock bridge, and the other end is fixed on the lock housing that stretches in the lock bridge, partly establish sliding tray with the lock bridge that this lock housing is touched mutually, fixedly the screw of tapered end, lock bridge box is positioned at the lower end of lock bridge under locking states.

2, by the described a kind of lock of claim 1, it is characterized in that the inner side edge of described arc lock bridge is provided with groove.

By claim 1 or 2 described a kind of locks, it is characterized in that 3, the lock core of described tapered end part is a Magnetic lockwork, this lock core has upper and lower shell, and lower casing is provided with the slotted hole of lock core drive pin activity.

4, by the described a kind of lock of claim 3, it is characterized in that described Magnetic lockwork is a variable code, establish a latch in the outside on two garble wheels engagements limit, this latch meshes with a garble wheel when stop.

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