CN2132812Y

CN2132812Y - Bicycle lock

Info

Publication number: CN2132812Y
Application number: CN 92218742
Authority: CN
Inventors: 周开石
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-18
Filing date: 1992-09-18
Publication date: 1993-05-12
Anticipated expiration: 2002-09-18

Abstract

The utility model relates to a bicycle lock, comprising a lock body, a lock seat, a lock nut, a lock core, a horizontal fixing plate, an upper shroud ring and a lower shroud ring. The utility model uses the imaginary central line of the central shaft of the bicycle tap as a vertical reference and uses a flat nut fixing the central shaft and a bicycle frame as a horizontal reference to lead out the designing dimension of each component, and meanwhile, the utility model uses the horizontal fixing plate installed on the central shaft as the fixing, supporting and positioning point of the lock body, the lock body and the lock seat are connected with the bicycle frame by the upper and the lower shroud rings, the locking position of the bicycle lock is arranged between the lower part of the central shaft of the bicycle handlebar and the bicycle frame, forming an external fixation, after the lock is locked, the integral lock is positioned at a closed state and can not be prized. The bicycle lock has simple structure, the cost of the bicycle lock is approximate to a clamp lock, and the bicycle lock can be widely used for bicycles and tricycles.

Description

Bicycle lock

The utility model relates to lock, is in particular a kind of bicycle lock.

The bicycle lock that uses can be divided into Front fork lock and rear wheel lock two classes at present.The rear wheel lock structure is generally very unreliable, though or reliable use inconveniently, the Front fork lock installation position is low, uses inconvenience, also easily injures the vehicle top layer in installing and using.Chinese patent application CN88211699.1 " Antipicking bicycle lock ", this lock case of lock fuses with vehicle body voluntarily, dead bolt penetrates into forward in the front fork VERTICAL TUBE, in vehicle frame, lock, technology is numerous and diverse, and relate to the production technology and the national standard of change bicycle producer, be difficult for for producer with used the user of bicycle to be accepted at present.

The purpose of this utility model is exactly a kind of existing situation that does not change bicycle that designs in order to address the above problem, and connects installation between the central axis of tap and vehicle frame, and lock before the externally fixing bicycle.

Technical solution of the present utility model is as follows:

Lock before a kind of bicycle, it comprises lock body 9, lock 13, lock nut 12, locking bolt 20, lock core, last shroud ring 11, following shroud ring 17 is characterized in that being equipped with horizontal fixed plate 5 on handle-bar central axis 1, the bottom of lock body 9 is fixed on the horizontal fixed plate 5, the top of lock body 9 is fixed on the central axis 1 by last shroud ring 11, and even up on the plane on the upper surface of lock 13 and the Pingluo cap 3, and is respectively to have a lockhole 14 about benchmark with the center shaft axis, have a through hole 15 in two lockholes 14, shroud ring 17 was fixedlyed connected with vehicle frame 2 under lock 13 passed through.

Advantage of the present utility model is good reliability, lock nut and lock body, and the gap is less than 0.5mm between lock body and lock, each parts connects good concealment, can not prize and get, and is easy to use, because of being installed between central axis and the vehicle frame, the position height, and in the car front portion, unblank, latch and all need not bend over, do not strive the installation site with other lock, the structure compact, good looking appearance, manufacturing cost and kayser are close.

Following structure accompanying drawing further describes as follows to the utility model:

Fig. 1 is the utility model user mode schematic diagram

Fig. 2 is the utility model structural representation

Fig. 3 is the utility model lock vertical view

Fig. 4 is the utility model horizontal fixed plated construction schematic diagram

Fig. 5 is a shroud ring locking card structural representation under the utility model

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model is a vertical reference with handle-bar central axis 1 imagining center line, with plane on the Pingluo cap 3 of fixed center axis 1 and vehicle frame 2 is that horizontal reference is derived each parts design size, on central axis 1, the lower plane of garden sieve cap 4 and the last interplanar of lamp bracket 6 are equipped with horizontal fixed plate 5, unclamp garden sieve cap 4, go into horizontal fixed head 5 on the upper surface of lamp bracket 6 by the forward direction postposition, horizontal fixed plate 5 is a ∩ template, there is a convex edge middle part of inner surface at an upper portion thereof, this convex edge snaps in central axis 1 grooving, play positioning action, tighten garden sieve cap 4, at two ends, horizontal fixed plate 5 bottom one screw 7 is arranged respectively, bolt 8 links to each other with lock body 9 bottom face by this hole 7, two screws are arranged at the top of lock body 9, bolt 10 is by this hole, using shroud ring 11 is fixed on lock body 9 tops on the central axis 1, after lock nut 12 on the lock body 9 falls, bolt 10 cresteds, three holes are arranged on the lock 13, a left side, right two holes 14 and leading center line angle at 45 for about locking 45 ° the time, mesopore 15 is proofreaied and correct tap when crooked and is used for leading, the upper surface of lock 13 and the last plane of Pingluo cap 3 are evened up, vehicle frame 2 external surfaces that the inner surface of lock 13 is in contact with it coincide, respectively there is a fixing hole 16 on the both sides, bottom of lock 13, following shroud ring 17 is fixed on lock 13 on the vehicle frame 2 by this fixing hole 16 and nut 18, bolt 8 cresteds this moment, following shroud ring 17 is a ∩ type body, and its lower end is a screw rod, in two fixing holes 16, locking card 19 is housed between the upper surface in screw rod and hole, shroud ring 17 was extracted out from fixing hole 16 under this locking card 19 can effectively stop, even remove nut 18 like this, can not extract down shroud ring 17 out.When the utility model is worked, press lock nut 12, will gently put about tap, locking bolt 20 promptly falls in one of left and right sides lockhole 14 and locking, and bicycle is not rideable this moment, and implementation also can only be at minimum radius interior circuit.The back key that latches resets, and can extract out.Be inserted and rotated key when unblanking, jump ring sheet 21 is connected the cam jack-up of lock core in the lock body 11, and return spring 22 lifts locking bolt 20, unblanks at once, and this moment, key can not be extracted out.

Close deflection as dragon, locking bolt 20 can be inserted interstitial hole 15, proofread and correct then, proofread and correct and finish to unblank to get final product.Behind the following lock, whole lock is in closed state, and the lock body good rigidly can not be prized and get, and is easy to use, lock body 9, and lock 13, lock nut 12 can be by the compacting of metal superplastic forming technology, accuracy of manufacture height, good looking appearance.The utility model can be widely used in bicycle and tricycle.

Claims

1, lock before a kind of bicycle, it comprises lock body 9, lock 13, lock nut 12, locking bolt 20, lock core, last shroud ring 11, following shroud ring 17 is characterized in that being equipped with horizontal fixed plate 5 on handle-bar central axis 1, the bottom of lock body 9 is fixed on the horizontal fixed plate 5, the top of lock body 9 is fixed on the central axis 1 by last shroud ring 11, and even up on the plane on the upper surface of lock 13 and the Pingluo cap 3, and is respectively to have a lockhole 14 about benchmark with the center shaft axis, have a through hole 15 in two lockholes 14, shroud ring 17 was fixedlyed connected with vehicle frame 2 under lock 13 passed through.

2, lock before the bicycle according to claim 1, it is characterized in that interplanar is equipped with horizontal fixed plate 5 on the lower plane of the garden of handle-bar central axis 1 sieve cap 4 and lamp bracket 6, horizontal fixed plate 5 is a ∩ template, there is a convex edge middle part of inner surface at an upper portion thereof, this convex edge snaps in central axis 1 grooving, and a screw 7 is arranged respectively at two ends, its underpart.

3, lock before the bicycle according to claim 1 and 2, it is characterized in that the lockhole 14 on the described lock 13, with central axis 1 axis is benchmark, locate open keyhole 14 for each 45 ° about being preferably in, the inner surface of lock 13, the external surface of the vehicle frame 2 that is in contact with it matches, and respectively there is a fixing hole 16 on the both sides, bottom surface of lock 13.

4, according to locking before claim 1 or the 2 or 3 described bicycles, it is characterized in that described shroud ring 17 down is a ∩ type body, its lower end is a screw rod, in 13 liang of fixing holes 16 of lock, locking card 19 is housed between the upper surface in screw rod and hole.