CN2343284Y - Double-beam bicycle anti-theft lock - Google Patents
Double-beam bicycle anti-theft lock Download PDFInfo
- Publication number
- CN2343284Y CN2343284Y CN 97218307 CN97218307U CN2343284Y CN 2343284 Y CN2343284 Y CN 2343284Y CN 97218307 CN97218307 CN 97218307 CN 97218307 U CN97218307 U CN 97218307U CN 2343284 Y CN2343284 Y CN 2343284Y
- Authority
- CN
- China
- Prior art keywords
- lock
- locking bolt
- front fork
- twin beams
- bicycle
- 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
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model relates to a lock designed specially for double-beam bicycles; the external shape of a lock body is consistent to the connecting inner side of double beams of a bicycle and a casing tube of a front fork; the contact surface of the lock body, the double beams and the casing tube of a front fork is in an arc groove shape; the structure of the utility model is that the utility model is composed of two lock cores, wherein, a lock core is used for controlling two lock bolts to be inserted into an upper beam and a lower beam to have a fixing and installing function; the other lock core is used for controlling one lock bolt to be inserted into the casing tube of a front fork and an inner tube of a front fork to cause a front wheel to be positioned in angles; a steering handle can not freely turn; all holes are arranged on the contact surface of the lock body, the double beams and the casing tube of a front fork to achieve a full-closing purpose.
Description
The utility model relates to a kind of bicycle lock of twin beams.
The lock that is the twin beams bicycle designs at present specially is few, and the patent No. 92245788.3 designed anti-theft lock for bicycle are wherein a kind of.But because keyhole is opened on the tripod tube wall, influence car tripod fastness, the installation of lock body is with screw or seccotine gummed.But as install with screw, just inevitable screw exposes to the open air outside, is absolutely unsafe and reinforces effect with more difficult the reaching of seccotine gummed.Also have very big gap between lock body upper end and front fork tube, bring convenience to sledge system.
The purpose of this utility model is that design is a kind of totally enclosed, installs and changes twin beams bicycle lock easily.
It is inboard in full accord that the profile that the purpose of this utility model is achieved in that lock body and the twin beams of twin beams bicycle are connected with the front fork sleeve pipe, and lock body equates with the external diameter radius of car beam pipe with the radius that the contact surface of car twin beams and front fork sleeve pipe is arc groove shape arc.When lock the rear arc groove being installed blocks twin beams and front fork sleeve pipe.Lock body is made up of steel ball of three lock rifles of two lock cores, two locks of one of them lock core control insert in the hole that get in place corresponding with it on the bicycle twin beams it respectively, play to install and fix to act on adding and change lock, and key is inserted lock core, the twisting key, two locking bolts are return lock body.Locking bolt of another lock core control inserts it in front fork sleeve pipe and front fork pipe and gets fixedly front fork of Kong Zhongqi, front vehicle wheel and the angled location of vehicle body, the effect that cycle handlebar can not turn to.Steel ball then plays stable lock body long under the effect of spring in the hole that car underbeam opposite position is got, the pellet shot from a slingshot hole of locking two lock cores is all opened on lock body and face that beam contacts and played totally enclosed purpose.
The utility model is carried out inner bolt and is inserted the method installation lock that connects, the contact surface of lock body and twin beams and front fork sleeve pipe is arc groove shape, porose all open with the contact surface of twin beams and front fork sleeve pipe, reached totally enclosed effect and controlled two locking bolts that install and fix lock body with a lock core and reached to install and change purpose easily.
The concrete structure of utility model is provided by following examples and accompanying drawing.
Fig. 1 is the sectional drawing according to the twin beams bicycle lock that the utility model proposes.
Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete lock that the utility model proposes.
This lock comprises the main body of a lock, and the contact surface of main body and twin beams and front fork sleeve pipe is arc groove shape, in (1) main lock main body (6) (7) 4 compression springs of steel ball of (3) 3 locking bolts of two lock cores (2) (4) (5) (8) (7) (10) (11) is arranged.
Two peaches of lock core (2) are being controlled locking bolt (4) and locking bolt (5) when clockwise rotating key, and the platform on locking bolt (4) and the locking bolt (5) makes locking bolt (4) and locking bolt (5) be retracted into lock body under two effects of choosing of lock (2).Locking bolt (4) is vertical with lock (1) base, and locking bolt (5) is parallel with locking bolt (4).Lock core (3) gear control locking bolt (6), when when lock core (3) inserts the key of itself, locking bolt (6) lock body (1) bolt that under the effect of spring (10), rebounds, this moment, key was taken not get off, and in the time will pinning bicycle, key is rotated by inverse time needle-like, locking bolt this moment (6) inserts in the hole that pipe is got in front fork sleeve pipe and the front fork under the effect of lock core (3).This moment, the car front-wheel can not freely turn to locking bolt (6) vertical with the front fork box face with lock body (1) with the angled orientation handle of vehicle body.
When lock body (1) will be installed, the bottom surface groove of lock body (1) is buckled on the car bottom girder and pushes away forward along beam, when getting to lock body (1) and be close to twin beams and front fork sleeve pipe, locking bolt (4) and locking bolt (5) be not under the effect of spring (8) and spring (9), locking bolt (4) inserts among the relative hole b that gets with own position of underbeam, locking bolt (5) inserts among upper beam and the corresponding hole a that gets in own position, steel ball (7) snaps under the effect of spring (11) among the hole D at underbeam and the relative end, own position, lock this moment (1) installs, in the time of need taking off lock body (1), the key of lock core (2) is inserted lock core (2), by clockwise rotating, locking bolt (4) and locking bolt (5) were return lock body (1) and lock body (1) were stayed along the car bottom girder one draw at this moment under the two peaches effects of lock core (2) this moment, steel ball (7) is being squeezed back in the lock body, and lock body (1) is taken down.
Claims (7)
1, a kind of twin beams anti-theft lock for bicycle that aims at the twin beams bicycle designs, this lock is made up of 2 lock cylinders, 3 locking bolts, a steel ball, 4 springs, it is inboard consistent to it is characterized in that the lock body profile and the twin beams of twin beams bicycle link to each other with the front fork sleeve pipe, the contact surface arc groove shape of lock body (1) and car twin beams and front fork sleeve pipe, two peach control locking bolts (4) of lock core (2) and locking bolt (5), locking bolt (4) inserts bottom girder downwards, locking bolt (5) upwards inserts and puts the beams in place, lock core (3) gear control locking bolt (6), insert forward in front fork sleeve pipe and the front fork and manage, steel ball (7) is stuck on the bottom girder.
2, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that lock core (2) control locking bolt (4) and locking bolt (5), and lock core (2) has the peach of two symmetries, just in time withstands on the platform of the platform of locking bolt (4) and locking bolt (5).
3, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that locking bolt (6) is vertical with the limit of the contact surface of front fork sleeve pipe with lock body.
4, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that the locking bolt (4) and lock body (1) end connect vertical.
5, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that locking bolt (5) is parallel with locking bolt (4).
6, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that locking bolt (4) and locking bolt (5) back have spring (8) and spring (9) respectively.
7, twin beams anti-theft lock for bicycle according to claim 1 is characterized in that steel ball 7 is stuck on the bottom girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97218307 CN2343284Y (en) | 1997-06-20 | 1997-06-20 | Double-beam bicycle anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97218307 CN2343284Y (en) | 1997-06-20 | 1997-06-20 | Double-beam bicycle anti-theft lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343284Y true CN2343284Y (en) | 1999-10-13 |
Family
ID=33934622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97218307 Expired - Fee Related CN2343284Y (en) | 1997-06-20 | 1997-06-20 | Double-beam bicycle anti-theft lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343284Y (en) |
-
1997
- 1997-06-20 CN CN 97218307 patent/CN2343284Y/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 | ||
| 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 |