CN2246103Y - Anti-theft device of man-power vehicle - Google Patents

Abstract

The utility model relates to an anti-theft device for the centre shaft part of a manpower vehicle, such as a, a tricycle, etc. The utility model comprises a centre shaft 11, a centre shaft pipe 1 in a cavity, wherein, the middle part of the centre shaft is bigger than both ends of the centre shaft; the middle part of the centre shaft pipe is bigger than both ends of the centre pipe. The utility model is characterized in that a lock body 13 of a centre shaft lock is arranged in the pipe wall of the centre shaft pipe; a lock pin rotates by the thread cooperative structure 16 of the lock pin and the centre shaft pipe or the lock body, so that the front end of the lock pin rotates entering or drawing out of the lock pin hole 15 of the centre shaft, realizing locking or unlocking. The utility model has the advantages that the structure is simple; the centre shaft can not drop off; the centre shaft pipe is enlarged, and the connected pipe is shortened, forming the nonstandard assembly; the anti-theft performance is good.

Description

The rickshaw anti-joyride device

The utility model relates to the anti-joyride device of rickshaw, particularly the middle shaft part anti-joyride device of pedal type manual such as bicycle, three-wheel vehicle car.

The foot-operated power of going into car such as existing bicycle, three-wheel vehicle adopts the foot-operated axis rotation that drives, through the messenger chain geared wheel.Its axis relies on bearing installation in the inner chamber of the right cylindrical of central siphon, can pack into easily and remove.Central siphon is positioned at the middle and lower part of triangle frame, pass through mutually with preceding pipe, saddle tube, back breeches pipe and to connect, on the central siphon periphery between preceding pipe and the saddle tube additivity connect install in shaft lock, in linearly telescopic the running through the axis tube wall and enter the lockpin hole of axis of the lock pin of shaft lock, constitute the anti-joyride device of middle shaft part.Shaft lock can adopt saw in this, means such as strike are disengaged antitheftly, also can adopt pipe before the sawing, saddle tube, back breeches pipe pipe root, changes the middle axle assembly of central siphon, axis, middle pivot pin formation and removes antitheft.In addition, linear telescopic formula axis lock construction more complicated, poor with the coupling reliability of central siphon.

Given this, the purpose of this utility model is to provide a kind of axis, central siphon, middle shaft lock to remove and changes difficulty, good, the simple rickshaw anti-joyride device of axis lock construction of anti-theft.

The utility model adopt to increase axis middle part and central siphon inner chamber middle part, increases the central siphon thickness of pipe, with the axis lock body be contained in the tube wall, the screw thread rotation of the middle shaft lock lock pin structure of advancing and retreat realizes its purpose.

Rickshaw anti-joyride device of the present utility model (referring to accompanying drawing), the central siphon (1), axis (11), the lock pin (14) that comprise rickshaw can stretch into the middle pivot pin (12) of the lockpin hole (15) of axis, above-mentioned axis is the stepped shaft shape of middle part greater than two ends, above-mentioned central siphon inner chamber is the middle part that cooperates with axis greater than the ladder hole shape near the two ends, middle part, the lock body (13) of shaft lock is accommodated in the tube wall of central siphon in above-mentioned, and above-mentioned lock pin and central siphon and lock body have thread matching structure (16).

The cover of dust (18) that can cover axis lock keyhole (15) is arranged on the above-mentioned central siphon outer peripheral face.The central siphon lower side has the discharge orifice (10) that is communicated with inner chamber.

The utility model is compared with existing axis anti-joyride device, has following advantage and effect.

One, the middle part of axis and central siphon inner chamber is encapsulated in the central siphon inner chamber axis greater than the structure at two ends, is difficult to remove, and must adopt destructive means to remove.Improved anti-theft.

Two, middle shaft lock is contained in the tube wall of central siphon, forms embedded structure, can not adopt sawing or knock the means dismounting.It is big to remove the destruction difficulty, thereby has improved anti-theft.

Three, the increase of central siphon inner chamber, hold in the tube wall of shaft lock thicken, the central siphon external diameter is increased considerably, thereby shortened the length of passing through the preceding pipe that connects, saddle tube, back breeches pipe with central siphon, axle assembly becomes the nonstandard assembly of similar lock class sample in making, difficulty is changed in its sawing, thereby has improved anti-theft.

Four, the flexible helicitic texture of the lock pin of middle shaft lock makes lock pin rotary flexible, and the structure flexible than existing straight line is more simple and reliable.

Five, dustproof cover structure, the key hole of shaft lock avoids sand and dust and foreign matter to enter in can covering.The discharge orifice structure can be got rid of the central siphon inner chamber because of rainfall and the unexpected water that enters, and keeps axis to run well.

Below, with embodiment and accompanying drawing thereof the utility model is further elaborated again.

Brief description of drawings.

Fig. 1 is the structural representation that the bicycle of a kind of rickshaw anti-joyride device of the present utility model is housed.

Fig. 2 is the structural representation of a kind of rickshaw anti-joyride device of the present utility model among Fig. 1.

Fig. 3 is the sectional structure scheme drawing of axis in Fig. 2 edge.

Embodiment 1

A kind of rickshaw anti-joyride device of the present utility model, as shown in drawings.Constitute by central siphon, axis, middle shaft lock, be installed on the bicycle, constitute theft-proof device for bicycle.

Above-mentioned central siphon 1, by about two sections constitute one through welding, its inner chamber middle part and two ends form the big chamber 2 at middle part and near the loculus 3 and 4 at two ends, big chamber, loculus is outward for installing the bearing bore of bearing 5 and 6.Central siphon 1 is a thick-walled pipe, and the more common bicycle middle shaft pipe of its external diameter is much bigger.Be expendable weight, the central siphon downside can be the plane that cuts arc cylinder.The place ahead of central siphon 1 and bicycle front tube 7 pass through and connect, and top and saddle tube 8 pass through and connect, and rear and back breeches pipe pass through and connect.Therefore, all the size of the corresponding pipe fitting of more common bicycle of the same type is short for preceding pipe, saddle tube, back breeches pipe.There is big chamber to lead to extraneous discharge orifice 10 in the central siphon bottom.

Above-mentioned axis 11 is the big stepped shaft shape small in ends in middle part, and its middle part and two ends match with the endoporus of the big chamber 2 of central siphon 1, loculus 3 and 4, bearing 5 and 6 respectively.Axis 11 can not be deviate from from central siphon 1, during assembling, earlier from the axis two ends be set with central siphon 2 about section, then with about the section formation central siphon that is welded into one.

Shaft lock 12 in above-mentioned, in the preceding pipe 7 that is inlaid in central siphon 2 tops and the tube wall between the saddle tube 8 of flush type, be common billiards lock structure, the tube wall of its lock body 13 usefulness usual methods and central siphon connects firmly, lock pin 14 is installed in the lock body 13, the lock pin front end can stretch in the lockpin hole 15 at axis 10 middle parts, it is near the lock pin stage casing of this front end, be shaped on the outside thread of common structure, in the tube wall near big chamber 2 of central siphon, be shaped on the negative thread that matches with above-mentioned outside thread, make lock pin and central siphon constitute thread matching structure 16.Above-mentioned negative thread also can be made at the lock body leading section.In the appropriate location of central siphon 1 periphery, adopt common hinge arrangement, the cover of dust 18 of the key hole 17 of shaft lock during hinge is associated with and can covers.The able to turn on or off key hole of rotation cover of dust.

During use, the key 19 of middle shaft lock is inserted key holes 17, screw key and drive lock pin 14 relies on thread matching structure 16, and lock pin can be threaded in the lockpin hole 15 of axis 11, and locking axis 11 makes it can not rotate the driving rickshaw.When lock pin was screwed out lockpin hole, axis is unblanked to be discharged, and the rotatable power of being driven into garage advances.

Present embodiment also can be provided in the middle shaft part of manual tricycle, constitutes the anti-joyride device of three-wheel vehicle.

Before the turning to of bicycle, three-wheel vehicle on the front fork central siphon of fork shaft and vehicle frame, can make as anti-joyride device of the present utility model, being about to front fork central siphon tube wall thickens, to hold Front fork lock as the axis lock construction, before the lock pin of Front fork lock can screw in the lockpin hole of fork shaft, realize the locking steering hardware and antitheft.

Claims (2)

1, rickshaw anti-joyride device, the central siphon (1), axis (11), the lock pin (14) that comprise rickshaw can stretch into the middle shaft lock (12) of the lockpin hole (15) of axis, it is characterized in that axis is the middle part greater than the stepped shaft shape near the two ends, middle part, the central siphon inner chamber is the middle part that cooperates with the axis ladder hole shape greater than two ends, the lock body (13) of pivot pin is accommodated in the tube wall of central siphon in above-mentioned, and above-mentioned lock pin and central siphon or lock body have thread matching structure (16).

2, rickshaw anti-joyride device as claimed in claim 1 is characterized in that the cover of dust (18) that can cover axis lock keyhole (15) is arranged on the said central siphon outer peripheral face, and the central siphon lower side has the discharge orifice (10) that is communicated with inner chamber.

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