CN2222777Y - Convenient-to-installation front forks lock - Google Patents

Abstract

The utility model relates to a front fork lock for a bicycle, composed of a shell lock, a lock core, a lock pin, a lock bolt, a ring clip and a nondetachable mechanism. The utility model uses the nondetachable mechanism composed of a skewed tooth screw and a reed and a ring clip lock ear to cause the front fork lock to arrange conveniently and reliably to the junction of the front fork of the bicycle and a skewed step.

Description

Front fork lock easy for installation

The utility model relates to a kind of lock, relates more specifically to a kind of Front fork lock that is used for bicycle.

General anti-theft lock for bicycle is mounted on the trailing wheel mostly at present, uses chain lock though some cyclist adds again, and bicycle loses the key phenomenon and still takes place often.For this reason, the someone utilizes the front-wheel front fork to design the better theftproof lock of theftproof.As application number 91223588.8 " bicycle front-wheel orientation lock ", application number is 92237521.6 " motorcycle, tricycle, bicycle three are used theftproof lock ", these Front fork locks include lock body, lock core, lock pin, when the lock car, make the relative trailing wheel of front-wheel turn over an angle, make lock pin block front fork by the control lock pin and make it and to turn round, thereby make bicycle can't ride away or carry out playing antitheft effect.Though the more general rear wheel lock of the anti-theft effect of these Front fork locks has the gained height, but it installs difficulty, all need weld or be riveted on the bicycle front fork, this comparatively bothers and difficulty for general user, and the production of this lock and popularization also all have certain difficulty.

The purpose of this utility model provides a kind of easy for installation, the comparatively reliable and bicycle lock that is suitable for promoting of theftproof.

For achieving the above object, a kind of bicycle front fork lock of the special proposition of the utility model, its lock body comprises lock housing, lock core, lock pin that can be movable back and forth in lock body, the dead bolt of qualification lock pin position, it is characterized in that, comprise that also one is installed in the rotatably ring card of inserting in the lock ear of lock ear on the lock housing, a mid portion, and one mat its ring card two ends can be assigned in admittedly non-disconnectable structure on the lock housing, thereby Front fork lock is installed on bicycle front fork uprise and diagonal cleat junction.Described non-disconnectable structure comprises helical teeth screw and reed, the helical teeth screw is located in the ring deck hole on the lock housing, the screw bottom has internal thread hole, and reed fastens the helical teeth tooth root portion on a screw, and ring card two ends have the external screw thread that matches with the screwed hole of helical teeth screw.Described lock ear is the tubular metal body of a tool one centre bore, and described ring card is made by a bulk metal bar, and its two side portions is crooked symmetrically with respect to the mid portion of inserting in described tubular body centre bore.

Advantage of the present utility model is: Front fork lock of the present utility model when mounted, two helical teeth screws that only need screw non-disassembled mechanism get final product, after screwing, because the effect of helical teeth and reed structure, it is very convenient to make Front fork lock not only install, and also has preferable tamper, has broken away from loaded down with trivial details installation exercises such as welding, riveted joint because of it, so make it have the distinct advantages of very easily promoting again, be suitable for producing in enormous quantities.

By the following detailed introduction that the utility model embodiment is done in conjunction with its accompanying drawing, can more specifically understand the purpose of this utility model, design feature and advantage.

Schematic perspective view when Fig. 1 is installed on the bicycle for Front fork lock of the present utility model;

Fig. 2 removes the rear elevation of the biopsy cavity marker devices behind the locking closure for Front fork lock of the present utility model, and ring card wherein is an open mode;

Fig. 3 is the schematic diagram of non-disassembled mechanism in the Front fork lock of the present utility model;

Fig. 4 is the vertical view of Front fork lock of the present utility model.

See also Fig. 1, shown in Figure 2, Front fork lock of the present utility model comprises lock housing 1, lock core 2, lock pin 3, dead bolt 4, lock pin spring 5, latch bolt spring 6 and locking closure (not shown).Lock pin is provided with the head embedding of first and second grooves 31,32 for dead bolt 4, thereby lock pin is located up and down, the lock pin lower end is stretched out in block front fork outside the lock housing 1 to make it and to turn round, when unblanking, make to bounce back into its home position on the lock pin and make it to be separated with front fork.This structure is comparatively simple and easy for those skilled in the art, so do not elaborate at this.

Front fork lock of the present utility model also comprises a ring mechanism for card, on the lock housing outside, be provided with a lock ear 7, one ring cards 8 intermediate portions rotatably inserting be arc accordingly after in passing this lock ear with the bicycle front fork tube shape, as shown in Figure 4.Ring deck hole 12 on locking closure and the lock housing 1 is passed at its two, by being located at the helical teeth screw 9,10 in the ring deck hole and fastening the non-disassembled mechanism of forming in the reed 11 of upper and lower bottom surface of lock housing and sidewall and Front fork lock is installed on bicycle front fork standpipe and diagonal cleat junction.Described lock ear is the tubular metal body of a tool one centre bore, and described ring card is made by a bulk metal bar, and its two side portions is crooked symmetrically with respect to the mid portion of inserting in described tubular body centre bore.

Please referring to Fig. 3, it schematically illustrates out the non-disassembled mechanism of helical teeth screw and reed composition again, and helical teeth screw 9,11 has several helical teeth or ratchet, and its back of tooth is a straight-sided flank, and the screw bottom has an internal thread hole, matches with the external screw thread at ring card two ends.Two of reed 11 sheet that respectively divaricates, be bar fork sheet 111 and short fork sheet 112, short fork sheet 112 tops fasten the helical teeth straight-sided flank root in helical teeth screw 9, its bar fork sheet 111 is butted on the lock housing, so make that this helical teeth screw 9 can only be along the direction of arrow unidirectional tightened-up among Fig. 3, and can not oppositely unscrew, thereby make helical teeth screw and reed form non-disassembled mechanism.

Claims (3)

1. bicycle front fork lock, its lock body comprises lock housing, lock core, lock pin that can be movable back and forth in lock body, the dead bolt of qualification lock pin position, it is characterized in that, comprise that also one is installed in the rotatably ring card of inserting in the lock ear of lock ear on the lock housing, a mid portion, and one mat its ring card two ends can be assigned in admittedly non-disconnectable structure on the lock housing, thereby Front fork lock is installed on bicycle front fork uprise and diagonal cleat junction.

2. bicycle front fork lock as claimed in claim 1, it is characterized in that, described non-disconnectable structure comprises helical teeth screw and reed, the helical teeth screw is located in the ring deck hole on the lock housing, the screw bottom has internal thread hole, reed fastens the helical teeth tooth root portion on a screw, and ring card two ends have the external screw thread that matches with the screwed hole of helical teeth screw.

3. bicycle front fork lock as claimed in claim 1 or 2, it is characterized in that, described lock ear is the tubular metal body of a tool one centre bore, and described ring card is made by a bulk metal bar, and its two side portions is crooked symmetrically with respect to the mid portion of inserting in described tubular body centre bore.

Images