CN2255484Y

CN2255484Y - Directional locked anti-theft lock for bicycle

Info

Publication number: CN2255484Y
Application number: CN 96229138
Authority: CN
Inventors: 余群谋
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-17
Filing date: 1996-01-17
Publication date: 1997-06-04
Anticipated expiration: 2006-01-17

Abstract

The utility model relates to a direction-locked anti-theft lock for a bicycle, which is characterized in that the utility model comprises a fixing frame (9) which is fixedly arranged on a tripod (11), a rotating semi-circular ring (4) which is fixedly arranged on a front fork connecting rod (3), and a lock head (10) which is fixedly arranged on the inner cavity of the fixing frame (9), wherein, the rotating semi-circular ring (4) is axially provided with a round hole (13); a lock tongue (12) of the lock head (10) is inserted into the round hole (13). A handlebar of the bicycle can be locked in some angle by the utility model, in which case the bicycle can not travel normally. The utility model can be also used as an anti-theft lock for a motorcycle.

Description

Direction-stop anti-theft lock

The utility model relates to a kind of lock.

In the prior art, lock particularly bicycle lock generally is to lock on back wheels of vehicle, and the trailing wheel of car can not be rotated with respect to tripod, to reach the purpose of lock car.This lock need directly be anchored on the bicycle with screw, is easy to be pried open and dismantle.Also have a kind of flexible chain lock, be easy to be cut off, and make in the time put into and take out neither convenience.

The purpose of this utility model is to provide a kind of direction-stop anti-theft lock that turning to of handle-bar can't be advanced bicycle that limits.

The technical solution of the utility model is: it comprises the fixed mount that is fixed on the tripod, be fixed in rotation semicircular ring on the front fork connecting rod, be fixed in the tapered end in the fixed mount inner chamber, described rotation semicircular ring radially has circular hole, and the dead bolt in the described tapered end is inserted in the circular hole.

The utility model compared with prior art has following advantage:

(1). the hex nut on rotation semicircular ring of the present utility model and the front fork connecting rod is fixed together, fixed mount is fixed by the last pellet shot from a slingshot steel bowl of bicycle, tapered end is hidden in the fixed mount groove, and whole lock does not have screw, has the anti-theft effect of pick-proof, anti-fight, difficult dismounting.

(2). the utility model is installed on front vehicle wheel, does not influence the lock of rear wheel device, can make bicycle have the double anti-theft function.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is the structural front view of the utility model embodiment-when being installed on the bicycle;

Structural front view when accompanying drawing 2 is installed on the bicycle for the utility model embodiment two;

Accompanying drawing 3 is the A-A direction sectional view of accompanying drawing 1 and accompanying drawing 2;

Accompanying drawing 4 is the B-B direction sectional view of accompanying drawing 1 and accompanying drawing 2; Wherein:

[1]. tap; [2]. the hexagonal round nut; [3]. the front fork connecting rod; [4]. rotate semicircular ring; [5]. hex nut; [6]. lamp bracket; [7]. round nut; [8]. go up pellet shot from a slingshot steel bowl; [9]. fixed mount; [10]. tapered end; [11]. tripod; [12]. dead bolt; [13]. circular hole; [14]. hanging screw.

Embodiment: referring to accompanying drawing, it comprises the fixed mount [9] that is fixed on the tripod [11], be fixed in rotation semicircular ring [4] on the front fork connecting rod [3], be fixed in the tapered end [10] in fixed mount [9] inner chamber, described rotation semicircular ring [4] radially has circular hole [13], and the dead bolt [12] in the described tapered end [10] is inserted in the circular hole [13].Described rotation semicircular ring [4] is enclosed within on the front fork connecting rod [3], and the cover tubular inwall of described rotation semicircular ring [4] is a hexagon, and this hexagon inwall is inserted in and is stuck on the hex nut [5] on the front fork connecting rod [3].Have three radially circular holes [13] on the described rotation semicircular ring [4].The lower end of described fixed mount [9] is stuck on the crossbeam of tripod [11], last pellet shot from a slingshot steel bowl [8] below of the front end sleeve of fixed mount [9] on front fork connecting rod [3].Rotate semicircular ring [4] and be enclosed within on the bicycle front fork connecting rod [3], and be stuck on the hex nut [5], rotate semicircular ring [4] and can rotate along with tap [1].After front fork connecting rod [3] passes tripod [11] and fixed mount [9], load onto pellet shot from a slingshot steel bowl [8], round nut [7], lamp bracket [6] successively, there are two kinds embodiment is installed, embodiment one as shown in Figure 1, behind the lengthening of front fork connecting rod [3] screw thread position, put hex nut [5] on the lamp bracket [6], cover rotates semicircular ring [4] again, rotate semicircular ring [4] and have hexagonal checkpost on hex nut [5], load onto hexagonal round nut 2 then] and tap [1].Front fork connecting rod [3] screw thread of accompanying drawing 2 still is a raw footage, lamp bracket is put hexagonal round nut 2 on [6]], cover rotates semicircular ring [4] again, rotates semicircular ring [4] and has hexagonal checkpost on hex nut [5], load onto tap [1] then, above-mentioned direction-stop anti-theft lock immediate shipment is finished.When needs locks car, will lock and insert key in emerging [10], dead bolt [12] is stretched out and insert in arbitrary hole of rotation semicircular ring [4].At this moment it is relative static with fixed mount [9] to rotate semicircular ring [4], and tap is limited on the angle.Though bicycle wheels is still rotatable, and bicycle is normally advanced.The utility model also can be used for the theftproof lock of motorcycle.

Claims

1. direction-stop anti-theft lock, it is characterized in that: it comprises the fixed mount [9] that is fixed on the tripod [11], be fixed in rotation semicircular ring [4] on the front fork connecting rod [3], be fixed in the tapered end [10] in fixed mount [9] inner chamber, described rotation semicircular ring [4] radially has circular hole [13], and the dead bolt [12] in the described tapered end [10] is inserted in the circular hole [13].

2. direction-stop anti-theft lock according to claim 1, it is characterized in that: described rotation semicircular ring [4] is enclosed within on the front fork connecting rod [3], the cover tubular inwall of described rotation semicircular ring [4] is a hexagon, and this hexagon inwall is inserted in and is stuck on the hex nut [5] on the front fork connecting rod [3].

3. direction-stop anti-theft lock according to claim 1 is characterized in that: have three radially circular holes [13] on the described rotation semicircular ring [4].

4. direction-stop anti-theft lock according to claim 1 is characterized in that: the lower end of described fixed mount [9] is stuck on the crossbeam of tripod [11], last pellet shot from a slingshot steel bowl [8] below of the front end sleeve of fixed mount [9] on front fork connecting rod [3].