CN2292053Y

CN2292053Y - Interlinked theft-proof device for bicycle

Info

Publication number: CN2292053Y
Application number: CN 97208129
Authority: CN
Inventors: 何国华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-11
Filing date: 1997-03-11
Publication date: 1998-09-23
Anticipated expiration: 2007-03-11

Abstract

The utility model relates to an interlinked theft-proof device for a bicycle, which is composed of a bolt box that a housing and a housing are welded with each other, a bolt arranged in the bolt box, a lock core weight, and a bolt protection sleeve. The utility model is characterized in that the lock core weight arranged on a convex platform of the housing is composed of two lock cores which are connected with each other through the convex-concave clamping structure arranged on the two lock core bodies; when the utility model is operated, only one lock core is needed to realize the actions of locking and unlocking, and the other lock core is only needed to take the actions of fixing and maintaining; when one lock core is damaged or one key is lost, the other lock core can be unlocked, and meanwhile, the two lock cores can be taken out by utilizing the function of the convex-concave clamping structure, in which case the utility model is convenient for maintaining and replacing the lock cores. The utility model is welded on a rear frame of the bicycle, and thereby, the effective anti-theft can be realized and the sales volume of the bicycle with the utility model can be increased.

Description

The a chain of anti-joyride device of bicycle

The utility model relates to a kind of a chain of anti-joyride device that is applicable to bicycle.

At present, though the anti-theft lock for bicycle on the market is varied, can both be pried open or be cut off, the stolen phenomenon of bicycle still is on the rise, and " new car dare not be bought, and buying car dare not be ridden " become people's a worry.

The purpose of this utility model: provide a kind of bicycle a chain of anti-joyride device, in order to stop the robbed or burgled phenomenon of bicycle, guarantee that people are relieved with car, thereby increase the sales volume of manufacturer.

This device that is achieved in that of the day of this device has shell, bolt box, bolt, lock core steelyard, bolt sheath, flat thin magnet and blister pack.The constructional feature and the effect of this device are: 1. lock core steelyard is made up of two lock cores, is welded with embossed card on the lock core ectosome, two lock cores is blocked be one, and a lock core top is provided with a right angle metal bar, and another lock core top is provided with a right angle crampons.The effect of lock core: the one, oneself can be fixed in the device, the 2nd, be convenient to maintenance and change lock core.2. bolt is a metal cuboid.There is an elongated slot bolt bottom surface, and bolt base right part has a circular arc cutaway, is being screwed the push-pull piece head end on the bolt head, and the push-pull piece tail end is provided with handle, and bolt front right part has the metal cuboid of a projection.3. the bolt box is a hollow box body in four sides.The box body front inside wall is provided with one section groove, its effect: the one, and after matching with the metal cuboid of bolt front right-hand member projection, bolt is steadily moved in the bolt box; The 2nd, the restriction bolt does not all break away from box body.Positive and negative both sides have a circular arc cutaway and front left lower side that an oblong breach is arranged under the box portion left.4. shell be one the casting or with the pentahedron that the block of metal plate is stamped to form, also claim five halfbody betal cans.Be provided with a flat thin magnet in the shell right flank, its effect: when the bolt Caudad moves to right to the top, can hold the bolt tail, avoid bolt to beat with the car vibration.Position, outer casing frontispiece lower-left is provided with an ellipsoid boss, its effect: two lock cores are limited in together.5. the bolt sheath is a pentahedron betal can, its effect: during the lock car, bolt is pushed in the sheath, make bolt firm.6. blister pack.Ellipsoid boss on its shape, size and the shell is close, and a lock core hole is only stayed in the front, and another lock core hole is covered; Its effect: protection has the lock core of the right angle crampons water of not drenching with rain.

Erection procedure: the bolt box of earlier bolt being packed into, then in the enclosure with the welding of bolt box, again with the back side welding of shell or punching press in a support of bicycle Vee formation frame, welding of bolt sheath or punching press are supported at another root of bicycle Vee formation frame.Two lock core cards are inserted the lock core steelyard hole after good simultaneously, rotate the lock core that hook is arranged, make the hook of its tail end hook the trough rim of bolt bottom, pin down two lock cores and all can not from the lock core steelyard hole, pull out.So far, whole device assembles.

The advantage of this device: 1. good anti-theft effect.The shell of this device adopts integral plate punching press or casting to form, and is welded on the vehicle frame, can't pry open or lay down.And it is consistent that the paint tone of Che Yusuo, pictorial trademark reach, and more given full play to the globality effect of device.2. easy to maintenance.Whole device only need keep in repair or change lock core, when the lock core of metal bar is damaged or loses key, can open the lock core of crampons, hook is rotated and break away from trough rim, utilize the function of embossed card, simultaneously two lock cores are taken out, promptly can repair or change.When the either a corrupted or missing key of lock core of crampons, can open the lock core of metal bar, mobile again bolt, the circular arc cutaway of bolt bottom is alignd with the oblong breach of bolt box bottom, twitch the lock core that metal bar is arranged then, utilize the function of embossed card again, take out two lock cores simultaneously.3. easy to operate, no matter unblank or shut, all only need to rotate a lock core, promptly tail end is provided with the lock core of right angle iron staff, when key turns makes iron staff rotate into the bolt box with circular arc cutaway that bolt aligns, just in time extracts key out, promptly locks to shut.When key turns makes iron staff rotation and when breaking away from circular arc cutaway, promptly to lock openedly, bicycle can be walked.

Introduce an embodiment below in conjunction with accompanying drawing:

Fig. 1 is an integral structure scheme drawing of the present utility model.

Fig. 2 is the structural representation of bolt.

Fig. 3 is the structural representation of lock core steelyard.

Fig. 4 is the structural representation of bolt box.

With reference to accompanying drawing: a hollow boss (2) is arranged in a lower left quarter design by casting or the pentahedron shell (1) that is stamped to form, a single hole blister pack is arranged on the boss, in this boss, be placed with by lock core body on the right angle rod lock core (3) of concaveconvex structure engaging and the lock core steelyard of right angle hook lock core (4) composition.In shell (1), be welded with bolt box (5).Circular arc cutaway (6) and oblong breach (7) have been designed respectively at lower left quarter of bolt box (5) and right angle rod lock core (3) and the corresponding position of right angle hook lock core (4), in the bolt box, be provided with turnover through hole (8), on turnover through hole base plate, be provided with stopper (9), in bolt box (5), be provided with the bolt (13) of cuboid, be fixed with the head end of push-pull piece (11) on the bolt head with screw (12), the end of this push-pull piece is provided with handle (14), be provided with groove (15) in the bolt bottom, the stopper (9) that has of bolt box bottom cooperates, groove right-hand member in the bolt bottom is provided with circular arc cutaway (16), other is provided with a locking bolt sheath (17), be fixed on during installation on the tailstock of bicycle, with the whole casing that is fixed on another root tailstock of bicycle, form a complete a chain of anti-joyride device.

Claims

1, a chain of anti-joyride device of a kind of bicycle, comprise shell and be the bolt in the bolt box of one, the bolt box and lock core steelyard and bolt sheath with the shell weldering, it is characterized in that: the lock core steelyard in the shell boss is by two lock cores, be combined as a whole by the concaveconvex structure that is welded on the lock core body, one of them lock core top is provided with the right angle metal bar, and another lock core top is provided with the right angle crampons; Bolt in the bolt box is a rectangular metallic object, is provided with vertical groove in the bolt bottom surface, and right part is provided with circular arc cutaway on the bolt base, has been screwed push-pull piece on the bolt head.

2, according to a chain of anti-joyride device of the bicycle of claim 1, it is characterized in that: bolt box lower left quarter tow sides box wall is provided with a circular arc cutaway and front box wall is provided with a microscler breach.