CN2306301Y

CN2306301Y - U-shaped lock structure for bicycle

Info

Publication number: CN2306301Y
Application number: CN 97211052
Authority: CN
Inventors: 胡芳雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-23
Filing date: 1997-05-23
Publication date: 1999-02-03
Anticipated expiration: 2007-05-23

Abstract

The utility model relates to a u-shaped lock structure for bicycle, comprising a case body, a lock core, a spring, and a breechblock. The case body is an integral forming, the bottom side of the rare end of the case body is provided with the spring so as to butt with the breechblock which forms a flake shape, and the breechblock is provided with a through hole; besides, the front end of the case body is sheathed with the lock core, and the rear end of which is provided with an eccentric convex post which is just correspondingly inserted on the through hole; when the eccentric convex post turns, the breechblock can form an unlocking state or a locking state sliding up and down. Therefore, the utility model has the advantages of easy manufacture, easy assembly, practicability, accessibility, and cost saving, and can effectively ensure exact property of an unlocking and a locking operations and improve production rate.

Description

Bicycle horseshoe lock structure

The utility model relates to a kind of lock body structure, refers to a kind of bicycle horseshoe lock structure especially.

General known traditional type lock body structure 1, see also shown in Figure 1, a sheathed core 11 in a housing 10, these core 11 rear ends are provided with revolves pull body 110 and bolt and is provided with one and colludes body 12, it colludes

body

12 and 10 of housings are provided with torque spring 13, the interlock that this colludes body 12 and is subjected to its torque spring 13.

See also shown in Figure 2ly, in lock body structure 1 was located at horseshoe lock 3, when pressing lock ring 30, when trip groove 31 correspondences were colluded

body

12,13 effects of this torque spring make colluded body 12 and colludes and be located on the trip groove 31, reaches the action of locking; When unblanking, revolve the core 11 of pulling by key, can make this collude body 12 rotation twisting torque springs 13, through drawing of spring 32 lock ring 30 of pulling, the beginning can present unlocking condition.

Therefore, describedly understand it and have following shortcoming by top:

1. this torque spring colludes the start that body is subjected to its torsion for allowing, and in when assembling, must be earlier to pull open and part shape a little, is mounted on the location of colluding on body and the housing to cause, extremely trouble and puzzlement, and the time that increases on foot when making assembling is wasted, and reduces its productivity ratio greatly.

2. this colludes that body is by the side direction torsion start of torque spring to lock, unlocking condition, causes this side to become torsion not steady easily, and it is locked, unlocking action and interfere, have some setbacks in the use, and inconvenient.

In case 3. its elastic fatigue of torque spring then can't twist and collude body, have and cause the imprecise anxiety of locking.

The purpose of this utility model be to provide a kind of manufacturing, assembling easily, go to upper and lower start and definitely lock, can effectively reduce manufacturing, assembly cost, and can guarantee the bicycle horseshoe lock of its certainty of unblanking, lock.

According to the utility model, a kind of bicycle horseshoe lock structure is provided, include: housing, core, spring and breechblock; This housing is one-body molded, and bottom side, its rear end has been installed with a spring with butt one breechblock in the form of sheets, and this breechblock is provided with a perforation; In addition, the sheathed core of this housing front end, its core rear end is provided with an eccentric projection, and just correspondence is embedded in the perforation, and this off-centre projection can make breechblock go to upper and lower the unblanking of slip, locking state when rotating.

In above-mentioned bicycle horseshoe lock structure, this housing front end can be arranged with in regular turn and revolve the body of pulling, spring, pushing stopper, and this pushing stopper system is embedded in the core, its rear end is pushed against by spring then, and can be embedded at and revolve on the body of pulling, and this revolves the body rear end of pulling and then is provided with an eccentric projection, just correspondence is embedded in the perforation, push pushing stopper by the key front end and compressed spring, its pushing stopper is embedded in the embeded slot that revolves the body of pulling, thereby make breechblock go to upper and lower the unblanking of slip, locking state.

Understand for the effect to the utility model has fully, conjunction with figs. now with regard to structure of the present utility model, composition, effect and feature, is described in more detail in the back:

Fig. 1 is the three-dimensional exploded view of traditional type lock body;

Fig. 2 (A) is the user mode figure of traditional type lock body;

Fig. 2 (B) is that A among Fig. 2 is to schematic diagram;

Fig. 3 is the three-dimensional exploded view of lock body of the present utility model;

Fig. 4 (A) and (B) be the user mode figure of lock body of the present utility model;

Fig. 5 is the three-dimensional exploded view of another embodiment of lock body of the present utility model;

Fig. 6 (A) and the locking state figure and the unlocking condition figure of the lock body of Fig. 5 (B) are shown respectively.

See also shown in Figure 3.Bicycle horseshoe lock of the present utility model comprises substantially: housing 20, core 22, spring 23 and breechblock 24.

Housing 20 is one-body molded, and bottom side, its rear end has been installed with a spring 23 butts one breechblock 24 in the form of sheets, and this breechblock 24 is provided with a perforation 240; In addition, the sheathed core 22 of these housing 20 front ends, its core rear end is provided with the projection 220 of an off-centre, and just correspondence is embedded in the perforation 240, and constitutes a lock body structure 2.By this spring 23, breechblock 24, be located in fast in the housing 20, cooperate the projection 220 of this core 22 to be embedded, be able to simple and easy group and be set as lock body structure 2.And should off-centre projection 220, can make breechblock 24 go to upper and lower the unblanking of slip, locking state person.

According to above-mentioned structure, composition, the utility model it use effect to be described in detail in the back again:

See also shown in Figure 3, when desire manufacturing group is established lock body structure 2, containing hole with housing 20 moulding in advance, be installed with spring 23 by its bottom side, and prop up the breechblock 24 of a sheet, this front end gives sheathed core 22, and projection 220 correspondences of its core 22 rear ends are embedded in the perforation 240 of breechblocks 24, can constitute a lock body structure 2.

Seeing also shown in Figure 4ly, is the structural user mode figure that lock body structure 2 is mounted on horseshoe lock 3.When desiring to lock, only must press lock ring 30, when set trip groove 31 was corresponding to breechblock 24 on this lock ring 30,23 on the spring of this butt breechblock 24 compressed down start of breechblock 24, it is embedded on the trip groove 31, and present locking state.And when desiring to unblank, through revolving the core 22 of pulling, so that the projection 220 of its core 22 rear ends, eccentric start rotation, and breechblock 24 is given drawing makes its spring 32 be able to lock ring 30 is retracted playback, and presents unlocking condition.

So, understand the utility model it have following advantage by above-mentioned:

1. this breechblock, spring, core are to be sleeve type to be mounted on the housing, do not exist as the group of traditional type horseshoe lock when being embedded torque spring and establish puzzlement, and can form lock body structure fast, effectively the saving group is established the time, puies forward productivity ratio greatly, is suitable for producing in enormous quantities.

2. this breechblock is upper and lower start, and present unblank, the locking state person, by its upper and lower flowing mode of doing, can be better than traditional type deflection to reverse the trip mode, avoid being subjected to reversing of its torque spring to interfere the action of locking of its trip, can guarantee that it is unblanked, locks and move the effect of certainty and reach.

In addition, another embodiment of the utility model, see also Fig. 5, shown in 6, these housing 20 front ends can be arranged with in regular turn and revolve the body 21 of pulling, spring 211, pushing stopper 212, and this pushing stopper 212 is to be embedded in the core 22, its rear end then is subjected to spring 211 pushing and pressing, and can be embedded at and revolve on the body 21 of pulling, this revolves body 21 rear ends of pulling and then is provided with an eccentric projection 210, just correspondence is embedded in the perforation 240, push pushing stopper 212 by the key front end and compressed spring 211, its pushing stopper 212 is embedded in the embeded slot that revolves the body 21 of pulling, and get so that breechblock 24 is presented, the unlocking condition person of lower slider; So reached the antitheft effect person of many one decks.Also belong to intention category of the present utility model.

Claims

1. a bicycle horseshoe lock structure includes: housing, core, spring and breechblock; It is characterized in that:

This housing is one-body molded, and bottom side, its rear end has been installed with a spring with butt one breechblock in the form of sheets, and this breechblock is provided with a perforation; In addition, the sheathed core of this housing front end, its core rear end is provided with an eccentric projection, and just correspondence is embedded in the perforation, and this off-centre projection can make breechblock go to upper and lower the unblanking of slip, locking state when rotating.

2. bicycle horseshoe lock structure according to claim 1, it is characterized in that, this housing front end can be arranged with in regular turn and revolve the body of pulling, spring, pushing stopper, and this pushing stopper system is embedded in the core, its rear end is pushed against by spring then, and can be embedded at and revolve on the body of pulling, this revolves the body rear end of pulling and then is provided with an eccentric projection, just correspondence is embedded in the perforation, push pushing stopper by the key front end and compressed spring, its pushing stopper is embedded in the embeded slot that revolves the body of pulling, thereby makes breechblock go to upper and lower the unblanking of slip, locking state.