CN2515085Y

CN2515085Y - Internal lock for bicycle

Info

Publication number: CN2515085Y
Application number: CN 01251881
Authority: CN
Inventors: 陈壮辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-12
Filing date: 2001-09-12
Publication date: 2002-10-09
Anticipated expiration: 2011-09-12

Abstract

The utility model discloses an internal lock of a bicycle, and comprises a diagonal rod pipe of a bicycle tripod rest, a front-pass pipe of the bicycle tripod rest, a middle-pass pipe of the bicycle tripod rest, a bicycle tripod rest front fork mid-rod pipe, a middle axle, a lock pin, a lock pin sleeve, two plug devices which are respectively arranged in two ends of the diagonal rod pipe, and a drag rope which is for being connected with the two plugs in the two plug devices. The utility model is characterized in that the lock structures are all arranged in steel pipes which are to form the bicycle tripod rest, and are to form an integrated body with the bicycle. A head end and the middle axle can be locked up, and each side of the lock pin sleeve and a lock pinhole can only be externally seen. The external structure of the bicycle is simplified, thereby the utility model becomes more attractive and is provided with better burglarproof effect. The utility model is applicable to bicycles which are provided with structures of tripod rests.

Description

Bicycle inner lock

The utility model relates to a kind of theft-proof device for bicycle, especially constitutes the lock of one with bicycle.

Existing anti-theft lock for bicycle generally all is to be fixed on the vehicle frame of sitting below the saddle, or the additional lock of employing activity passes the front-wheel of bicycle or the steel ring of trailing wheel, and lock is fixed.These locks all are mounted in the outside of bicycle, influence the good looking appearance of bicycle, and use inconvenience, and safety is not high.

The purpose of this utility model provides a kind of stealth, with the bicycle inner lock of bicycle formation one.

The utility model comprises the brace pipe of bicycle tripod, preceding siphunculus and middle siphunculus, and rod tube, axis, lock core and lock core cover in the bicycle front fork, it is characterized in that also comprising:

Two bolt devices that are located at inboard, described brace pipe two ends respectively;

Be horizontally through described lock core, two ends connect the hauling rope of two latches in described two bolt devices respectively.

Described lock core and lock core are set on the inclined tube between described two bolt devices; Wherein, this lock core is provided with the horizontal open-work that allows described hauling rope pass.

Described bolt device comprises spring, form latch and sleeve; Wherein, the middle part of spring and form latch is located in the sleeve.

With the preceding siphunculus of junction, brace pipe upper end on be provided with an open-work; With the front fork of preceding siphunculus socket in the corresponding open-work that also is provided with on the rod tube; These two open-works can be arranged on the inboard latch in brace pipe upper end simultaneously and pass.

With the middle siphunculus of junction, brace pipe lower end on be provided with an open-work; With the axis of middle siphunculus socket on the corresponding counterbore that also is provided with; The latch that these two holes can be arranged on inboard, brace pipe lower end simultaneously inserts.

The bicycle inner lock of said structure, with the existing phase-locked ratio that is located at the outside, the structure of its lock all is arranged on the inboard that constitutes the bicycle tripod steel pipe, constitutes one with bicycle, can pin headstock and axis, the just lock core cover of seeing in appearance and the one side of lock core hole.Simplify the surface structure of bicycle, made it more attractive in appearance, and had more anti-theft.

Below in conjunction with accompanying drawing, the utility model is elaborated.

Shown in Figure 1, be the utility model cross-sectional schematic.

Shown in Figure 2, be the cross-sectional schematic of Fig. 1 along the A-A line.

Shown in Figure 1, be cross-sectional schematic of the present utility model.By among the figure as can be known, general bicycle tripod is made of preceding siphunculus 1, cross bar pipe 2, montant pipe 3, middle siphunculus 4 and brace pipe 11.Wherein, the outside of the upper end of the front end of cross bar pipe 2 and brace pipe 11 and preceding siphunculus 1 is fixedly connected; The outside of the lower end of the lower end of brace pipe 11 and montant pipe 3 and middle siphunculus 4 is fixedly connected.Rod tube 17 connects with the inboard cover of preceding siphunculus 1 in the bicycle front fork; Bicycle middle shaft 5 also connects for cover with middle siphunculus 4.Inboard in brace pipe 11 lower ends and middle siphunculus 4 connection places is provided with a bolt device that comprises that sleeve 8, spring 9 and latch 10 constitute; On middle siphunculus 4, be provided with corresponding open-work 7, on axis 5, also be provided with corresponding counterbore 6; The front end of latch 10 can pass open-work 7 simultaneously and insert counterbore 6, pins axis 5, and it can not be rotated.Inboard in brace pipe 11 upper ends and preceding siphunculus 1 connection place also is provided with another bolt device with lower end one spline structure; Be provided with corresponding open-work 15 on preceding siphunculus 1, also be provided with open-work 16 with corresponding position on the rod tube 17 in the front fork that preceding siphunculus 1 cover connects, the front end of latch 10 can pass open-

work

15 and 16 simultaneously, and rod tube 17 in the pinning front fork can not rotate it.Because of rod tube in the front fork 17 and handlebar are fixedly connected, so rod tube 17 just equals to have pinned handlebar in the pinning front fork.Lock core 12 and lock tube thereof are located at the middle part of brace pipe 11, and wherein, the rear end of lock core 12 is provided with a horizontal open-work 13, allows hauling rope 14 pass; Each is fixedly connected hauling rope 14 two ends with the afterbody of the latch 10 of two bolt devices.

Shown in Figure 2, be the cross-sectional schematic of Fig. 1 along the A-A line.Be located at sleeve 8 front ends in the bolt device of inboard, brace pipe 11 lower end and the outside of middle siphunculus 4 and be fixedly connected, the rear end is provided with lid, and the lid center is porose, and this hole allows latch 10 pass, and can move flexibly therein.The rear end of latch 10 and front middle part respectively are provided with a cross spacing bar, are with spring 9 on the latch between two position-limited levers.The centre of latch 10 and spring 9 are located in the sleeve 8, and an end of spring 9 is subjected to the restriction of latch 10 preceding cross spacing bars, and the other end is subjected to the restriction of sleeve 8 bonnet inboards.The rear end cross spacing bar of latch 10 is in the outside of sleeve 8 bonnets; Because it is similar that the planform of latch 10 and Chinese character " are done ", so also be form latch 10.Bolt device structure in inboard, brace pipe 11 two ends is identical, but installation direction is opposite, and the tail end of two form latches 10 connects with hauling rope 14, and wherein, hauling rope 14 passes the horizontal open-work 13 that is located on the brace pipe 11 middle part lock cores 12; Lock core 12 is installed on the brace 11 by lock core cover 18.

The utility model is work like this: the key 19 in the lock core 12 is to a direction rotational lock core 12, horizontal open-work 13 by lock core 12 draws gathering hauling rope 14, affect the form latch 10 at hauling rope 14 two ends, make the front end of two latches 10 leave hole 16 on the front fork king-rod 17 and the counterbore 6 on the axis 5 respectively, it is release, make front fork just handlebar and axis 5 can rotate, because of the two ends and the foot-operated of bicycle of axis 5 is fixedly connected, bicycle just can be stepped on after the release.When lock core 19 rotational lock core 12 round about, lock core 12 restores to the original state, and two latches 10 make the front end of latch 10 insert hole 16 on the front fork king-rod 17 and the counterbore 6 on the axis 5 respectively under the effect of separately spring 9, make bicycle be in the state of lock.Like this, realized that a lock can pin the place of bicycle two place's keys simultaneously, removed the existing trouble phenomenon that front-wheel is locked trailing wheel again of having locked from, and, simplified the bicycle theft-prevention peripheral device structure, make it attractive in appearance.

The structure of above-mentioned bicycle inner lock also can be arranged between cross bar pipe 2 front ends and montant pipe 3 lower ends of bicycle tripod, and the transition apparatus of on the corner establishing a hauling rope 14 gets final product, and is control bicycle handle and foot-operated equally.No matter what the parts of lock and control thereof are, as long as adopted the lock of this structure, all are protection domains of the present utility model.

Claims

1, a kind of bicycle inner lock, it comprises the brace pipe (11) of bicycle tripod, preceding siphunculus (1) and middle siphunculus (4), and rod tube (17), axis (5), lock core (12) and lock core cover (18) in the bicycle front fork, it is characterized in that also comprising:

Two bolt devices that are located at described brace pipe (n) inboard, two ends respectively;

Be horizontally through described lock core (12), two ends connect the hauling rope (14) of two latches (10) in described two bolt devices respectively.

2, according to this bicycle inner lock of claim 1, it is characterized in that: described lock core (12) and lock core cover (18) are located on the inclined tube (11) between described two bolt devices; Wherein, this lock core (12) is provided with the horizontal open-work (13) that allows described hauling rope (14) pass.

3, bicycle inner lock according to claim 1 is characterized in that: described bolt device comprises spring (9), form latch (10) and sleeve (8); Wherein, the middle part of spring (9) and form latch (10) is located in the sleeve (8).