CN2221088Y

CN2221088Y - Crab claw bicycle lock

Info

Publication number: CN2221088Y
Application number: CN 93206419
Authority: CN
Inventors: 倪景明
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-15
Filing date: 1993-03-15
Publication date: 1996-02-28
Anticipated expiration: 2003-03-15

Abstract

The utility model provides a crab claw type bicycle lock, which is composed of the components, such as a lock front casing, a lock back casing, a lock head, a protective sleeve, gears, racks, a left connecting rod, a right connecting rod, a concave claw, a convex claw, a tension spring, etc. The utility model is characterized in that the lock head is provided with a rack which is engaged with a coaxial gear, the rack is connected to a four connecting rod mechanism which is composed of the left connecting rod, the right connecting rod, the concave claw and the convex claw by a connecting panel. The lock head is rotated to cause the concave claw and the convex claw to open and close simultaneously to achieve the purposes of opening and closing the lock. The lock which is a novel bicycle lock with high anti-theft performance can be widely suitable for various medium, high-grade bicycles and power assistant vehicles.

Description

The crab jaw type bicycle lock

The utility model relates to a kind of crab jaw type bicycle lock, known bicycle lock generally can be divided into movable and stationary bicycle lock two big classes, movable bicycle lock mainly contains two kinds of chain type bicycle lock and Bowden cable formula bicycle locks, the stationary bicycle lock mainly contains traditional garden arc inserting type bicycle lock and horizontal inserting type bicycle lock, it is convenient inadequately and the flexible axle anti-shear performance is relatively poor when movable bicycle lock uses, and traditional garden arc inserting type bicycle lock is also because of lock housing pick-proof poor-performing and the anti-stripping of tapered end part cylinder lock lid poor-performing, so the bicycle theft rate is higher, single face fixedly the transverse-plug type bicycle lock because of firm inadequately, so use extensive inadequately, though two-sided fixedly transverse-plug type bicycle lock theftproof performance is better, unblanks, it is convenient inadequately to shut.

It is rapid, easy to use, sturdy and durable that the utility model purpose promptly is to invent a kind of open and close, has high theftproof performance, and two pincers are the crab jaw type stationary bicycle lock of opening and closing simultaneously.

The utility model is by front shell of lock 1; copper sheathing 3; limit shaft 4; protective sleeve 5; tapered end 6; gear 8; rear shell of lock 9; recessed pincers 10; protruding pincers 11; left side connecting rod 12; tooth bar 13; connecting plate 14; right connecting rod 15; extension spring 20; spacer pin 21 parts such as grade are formed; it is characterized in that gear 8 being rotated by rotation tapered end 6 keys; make on pinion rack 13 energy; move down and promote or spur by left connecting rod 12 through connecting plate 14; right connecting rod 15; recessed pincers 10; the four lever linkage mechanisms that protruding pincers 11 are formed; recessed pincers 10 and protruding pincers 11 can outwards or inwardly be opened simultaneously; close; reach and unblank or the purpose of locking; protruding pincers 11 end projections 24 can insert recessed pincers 10 end shrinkage pools 25 when locking; recessed pincers 10 after the locking can be integrated with protruding pincers 11; the tapered end 6 outer steel protective sleeves 5 that are with; tapered end 6 can be protected effectively, and whole lock becomes the novel crab jaw type bicycle lock of high theftproof with many steel closing-ups.

Fig. 1 is the utility model crab jaw type bicycle lock assembly drawing.

Fig. 2 is a crab jaw type bicycle lock A-A drawing in side sectional elevation.

Fig. 3 is the left view of crab jaw type bicycle lock.

Fig. 4 is a crab jaw type bicycle lock fixed head structure chart.

Fig. 5 is a crab jaw type bicycle lock clips structure chart.

Crab claw bicycle lock, by front shell of lock 1, copper sheathing 3, limit shaft 4, protective sleeve 5, Tapered end 6, gear 8, rear shell of lock 9, recessed pincers 10, protruding pincers 11, left connecting rod 12, tooth bar 13, The parts such as connecting plate 14, right connecting rod 15, extension spring 20, spacer pin 21 form, and it is characterized in that lock 6 have in-line gears 8, and 13 of tooth bars that is meshed with gear 8 are through connecting plate 14 and left company Bar 12, right connecting rod 15, the quadric chain that recessed pincers 10, protruding pincers 11 form links, and revolves Twist lock head 6 keys can make simultaneously opening and closing of recessed pincers 10 and protruding pincers 11, reach to unblank or close The purpose of lock.

There is a shrinkage pool 25 recessed pincers 10 ends of crab claw bicycle lock, and protruding pincers 11 ends have one Projection 24 also is equipped with an extension spring 20 between the two, protruding pincers 11 ends can be inserted when locking Recessed pincers 10 ends, locking recurve pincers 10 can be integrated with protruding pincers 11.

Be with a steel protective sleeve 5 outside the tapered end 6 of crab jaw type bicycle lock, tapered end 6 can be effectively protected.

Front shell of lock 1 is formed the bicycle lock housing with rear shell of lock 9; there is an aperture on lock housing top so that screw and lock fixed head 22 link, and stationary bicycle is locked portion; the bottom is fixed with screw and bicycle tripod after passing the tongue that 9 upper punches of rear shell of lock make by lock clips 23; fixedly fixedly mode is identical with the standard bicycle lock for the lock mode; tapered end 6 is five cylinder locks of tradition; by 5 protections of steel protective sleeve; be stripped to prevent the cylinder lock lid; when being rotated counterclockwise with tapered end 6 keys when unblanking; through gear 8 and with tooth bar 13 pulling of its engagement on when moving; because of the pulling force of extension spring 20 makes recessed pincers 10 in the four lever linkage mechanisms; protruding pincers 11 can separate automatically; till when left connecting rod 12 and right connecting rod 15 being closed up move to tooth bar 13 limited axles 4 and copper sheathing 3 spacing; reached the purpose of unblanking; key this moment Rotate 180 ° just in time; when clockwise rotating with tapered end 6 keys; move down through gear 8 with the tooth bar 13 of its engagement and to promote four lever linkage mechanisms; left side connecting rod 12; right connecting rod 15 moves down; recessed pincers 10; the pulling force that protruding pincers 11 overcome extension spring 20 closes up to insert in the recessed pincers 10 to protruding pincers 11 and is integrated; left side connecting rod 12 blocks with right connecting rod 15 limited pins 21; tapered end 6 keys this moment Rotate 180 ° just in time; can reach the purpose of locking behind the extraction key; because of left connecting rod 12 is horizontal with right connecting rod 15, go up spacing during locking by tooth bar 13; also can't unblank under the external force effect being subjected to down by spacing recessed pincers 10 and the protruding pincers 11 of making of spacer pin 21.

The utility model embodiment one concave pincers 10, protruding pincers 11 can be welded with steel sheet punching press contact, and copper sheathing 3, gear 8 are copper fitting, and surplus is steelwork or standard component, and present embodiment is used for all kinds of bicycles.

The utility model embodiment two concaves pincers 10, protruding pincers 11, front shell of lock 1, rear shell of lock 9 Stainless Steel manufacturing, surplus with embodiment one.This example is used for high-grade bicycle and vehicle using motor.

The utility model is novel, and compact conformation is safe and reliable, the theftproof performance height, Can be widely used on all kinds of medium and high classes bicycles and the vehicle using motor.

Claims

1; a kind of crab jaw type bicycle lock; by front shell of lock (1); copper sheathing (3); limit shaft (4); protective sleeve (5); tapered end (6); gear (8); rear shell of lock (9); recessed pincers (10); protruding pincers (11); left side connecting rod (12); tooth bar (13); connecting plate (14); right connecting rod (15); extension spring (20); spacer pin parts such as (21) is formed; it is characterized in that tapered end (6) has in-line gears (8); the tooth bar (13) that is meshed with gear (8) is then through connecting plate (14) and by left connecting rod (12); right connecting rod (15); recessed pincers (10); the quadric chain that protruding pincers (11) are formed links, and rotation tapered end (6) key can make recessed pincers (10) and protruding pincers (11) open simultaneously; close.

2, crab jaw type bicycle lock according to claim 1, it is characterized in that recessed pincers (10) end has a shrinkage pool (25), protruding pincers (11) end that one projection (24) is arranged, one extension spring (20) also is housed between the two, recessed pincers (10) end can be inserted in protruding pincers (11) end when locking, and locking recurve pincers (10) can be integrated with protruding pincers (11).

3, according to the described crab jaw type bicycle lock of claim 1, its feature also is the outer steel protective sleeve (5) that is with of tapered end (6).