CN2363939Y - Theftproof device for bicycle - Google Patents
Theftproof device for bicycle Download PDFInfo
- Publication number
- CN2363939Y CN2363939Y CN 99235857 CN99235857U CN2363939Y CN 2363939 Y CN2363939 Y CN 2363939Y CN 99235857 CN99235857 CN 99235857 CN 99235857 U CN99235857 U CN 99235857U CN 2363939 Y CN2363939 Y CN 2363939Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- sleeve
- lock box
- lock
- key
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model discloses a theftproof device for bicycles, which is composed of a lock box, a lock core, a key, a transmission shaft, a gear, a shaft sleeve, a sleeve tube and a pressing post, wherein, the lock box is fixed on the joint of a handlebar, the lock core and the transmission shaft are arranged in the lock box, the sleeve tube is fixed on a vertical tube of the handlebar, the pressing post supports in the sleeve tube by a spring, one end of the pressing post passes through a vertical tube of a front fork, and the other end of the pressing post is contacted with the shaft sleeve; the screw connection is between the shaft sleeve and the sleeve tube, the key-type connection is between the transmission shaft and the shaft sleeve, and the pressing post can press a tyre of a front wheel by the key rotation, causing the front wheel not to rotate to achieve the effect of locking bicycles. Thieves are nowhere to steal, so the theftproof effect can be achieved.
Description
The utility model relates to a kind of theft-proof device for bicycle.
At present, existing anti-theft lock for bicycle all is the additional member that is installed on outside the car body, with bolt or buckle in the wheel on, because latch fitting and attaching parts can not be too thick, can not cross and be exposed to outside the car body, this mode all through sled that mustn't the burglar, clamp, pound, saw or open with the self-control key easily.Make bicycle theft.
The purpose of this utility model is to provide a kind of theft-proof device for bicycle of good anti-theft effect.
For achieving the above object, theft-proof device for bicycle of the present utility model is made up of lock box, lock core, key, transmission shaft, gear, axle sleeve, sleeve pipe, compression leg, it is characterized in that: lock box is fixed on the handlebar joint, be provided with lock core, transmission shaft in the lock box, sleeve pipe is fixed on the stem, compression leg by spring-loaded in sleeve pipe, the one end passes vertical tube of front fork, the other end contacts with axle sleeve, for being threaded, is connected for key between transmission shaft and the axle sleeve between axle sleeve and the sleeve pipe; Transmission shaft is that gear transmission is connected with type of drive between the lock core.
The further improvement of the utility model mode is to establish a supporting plate in lock box, lock box is divided into two parts, supporting plate is provided with into keyhole, is provided with the dividing plate of going into keyhole that is used to block on the supporting plate between cover plate and the supporting plate, and this dividing plate is provided with 2-4 and is located at the corresponding groove of latch of being with spring on the supporting plate.
After adopting this structure, at the twisting key, lock core rotates and drives the transmission shaft transmission, and axle sleeve moves down the promotion compression leg and also moves down, and makes compression leg stretch out vertical tube of front fork compressing tire, the bicycle front-wheel can not be rolled, thereby prevent the stolen of bicycle effectively.
Fig. 1 is the structural representation of a kind of embodiment specifically of the present utility model.
Fig. 2 is the A-A cutaway view when removing key among Fig. 1 of the present utility model.
As Fig. 1, theft-proof device for bicycle of the present utility model shown in Figure 2, by lock box 5, lock core 6, key 7, transmission shaft 9, axle sleeve 10, sleeve pipe 12, compression leg 8 is formed, lock box 5 is fixed on the handlebar joint 1, establish a supporting plate 16 in the lock box 5, lock box 5 is divided into two parts, supporting plate 16 is provided with into keyhole, be provided with the dividing plate 15 that is used to block into keyhole between cover plate 14 and the supporting plate 16, this dividing plate 15 is provided with 2-4 and is provided with the corresponding groove of mortise lock of being with spring on the supporting plate 16, lock core 6, transmission shaft 9 is located in the lower part of lock box 5, being connected between transmission shaft 9 and the lock core 6 by big, being connected with a joggle of miniature gears 11, sleeve pipe 12 is fixed on bicycle handle bar's standpipe 2, compression leg 8 is bearing in the sleeve pipe 12 by spring 13, the one end passes vertical tube of front fork 4, the other end contacts with axle sleeve 10, for being threaded, is connected for spline between transmission shaft 9 and the axle sleeve 10 between axle sleeve 10 and the sleeve pipe 12.During use, suppose at this moment to be locking states, with inserting spoon the groove of the latch that is located at band spring on the supporting plate from dividing plate 15 withdrawed from, at this moment dividing plate 15 is made to the side by retracing spring to move, promptly at this moment the keyhole of going on the supporting plate 16 is not blocked, when being inserted by lock box cover plate 14, key 7 inserts lock core 6 by the keyhole of going on the supporting plate again, rotate key 7, by gear 11 transmissions, make transmission shaft 9 drive that axle sleeves 10 rotate in sleeve pipe 12 and on move, compression leg 8 spring-loadeds also with on move, at this moment compression leg 8 unclamps the compressing to tire, at this moment can drive a vehicle.During parking, rotate key 7, by gear 11 transmissions, make transmission shaft 9 drive axle sleeves 10 and rotates sleeve pipe 12 in and move down, because compression leg 8 is moved down by axle sleeve 10 promotions, only be pressed on the tire up to the end face of compression leg 8, at this moment the front-wheel of bicycle can not rotate.Such anti-theft column lock is set about the thief nowhere, has reached to have the anti-theft effect that passes.
Claims (2)
1, a kind of theft-proof device for bicycle, by lock box (5), lock core (6), key (7), transmission shaft (9), gear (11), axle sleeve (10), sleeve pipe (12), compression leg (8) is formed, it is characterized in that: lock box (5) is fixed on the handlebar joint (1), be provided with lock (6) core in the lock box (5), transmission shaft (9), sleeve pipe (12) is fixed on the stem (2), compression leg (8) is bearing in the sleeve pipe (12) by spring (13), the one end passes vertical tube of front fork (4), the other end contacts with axle sleeve (10), between axle sleeve (10) and the sleeve pipe (12) for being threaded, transmission shaft (9) fixing with axle sleeve (10) between for key is connected, the type of drive between transmission shaft (9) and the lock core is being in transmission connection of gear (11).
2, theft-proof device for bicycle according to claim 1, it is characterized in that: establish a supporting plate (16) in the lock box (5), lock box (5) is divided into two parts, supporting plate (16) is provided with into keyhole, be provided with the dividing plate (15) that is used to block into keyhole between cover plate (14) and the supporting plate (16), this dividing plate (15) is provided with 2-4 and is provided with supporting plate (16) and goes up the corresponding groove of latch of being with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99235857 CN2363939Y (en) | 1999-04-22 | 1999-04-22 | Theftproof device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99235857 CN2363939Y (en) | 1999-04-22 | 1999-04-22 | Theftproof device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363939Y true CN2363939Y (en) | 2000-02-16 |
Family
ID=34023755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99235857 Expired - Fee Related CN2363939Y (en) | 1999-04-22 | 1999-04-22 | Theftproof device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363939Y (en) |
-
1999
- 1999-04-22 CN CN 99235857 patent/CN2363939Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: SUITE 301, NO. 5, QUANTANG ROAD, GONGYE AVENUE, GUANGZHOU CITY, GUANGDONG PROVINCE TO: SUITE 301, NO. 62, YANZIGANG ROAD(SOUTH), HAIZHU DISTRICT, GUANGZHOU CITY, 510280 |
|
| CP03 | Change of name, title or address |
Address after: 510280, room 62, 301 South swallow Road, Guangzhou, Haizhuqu District Patentee after: Huang Jiaxin Address before: Room 5, No. 301, Jintang Road, Guangzhou Industrial Road, Guangdong Patentee before: Huang Jiaxin |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |