CN2208087Y - Vehicle lock with gear mechanism - Google Patents

Abstract

The utility model relates to a vehicle lock with an opening and closing mechanism in a gear and gear rack type, which aims to provide a vehicle lock with good antitheft performance and convenient use. The utility model is composed of a lock body, a lock core, a lock hook and an opening and closing mechanism in a gear and gear rack type. The lock body is provided with a center hole used for installing the lock core and a left lock hole and a right hole used for installing the lock hook. The lock core is provided with a rotation axle with an axle end. The lock hook forms a U shape. The inner sides of the left rod body and the right rod body of the lock hook are symmetrically provided with gaps. The closing and opening mechanism in the gear and gear rack type is composed of a gear and a left and a right tortuous (* shape) lock bolt boards. The gear is fixedly arranged on the axle end of the rotation axle of the lock core. One end of the left star-shaped lock bolt board and one end of the right star-shaped lock bolt board are respectively provided with the gear racks engaged with the gears. The other ends are provided with lock bolt ends inlaid into the gaps of the lock hook in locked closing.

Description

Vehicle lock with gear mechanism

The utility model belongs to power drive bicycle protective device, particularly a kind of lock of gear teeth bar formula mechanism for opening/closing.

As Fig. 7, shown in Figure 8, the lock 3 that tradition is commonly used is by the cam-shaped drive shaft end 42 that directly is darted at lock core 4 rotating shafts 41 terminals, a left side, right diaxon door bolt 31,31 ', spring 32 and bullet pin 33 are formed, when a left side with U-shaped latch hook 34, right two bodies of rod 340, during 340 ' insertion lock body 30, a left side, right axle door bolt 31,31 ' place this between the two spring 32 and the elastic force of bullet pin 33 strut under the effect, respectively left, the left side of latch hook 34 is moved and is embedded on the right side, right two bodies of rod 340,340 ' shackle notch 341, in 341 ', just finish the action of locking, be in locking states, when desiring to unblank, insert lock core 4 and rotate 30 ° of-90 ° of angles with key, then with the cam-shaped drive shaft end 42 of rotating its rotating shaft 41 terminals, make the major axis of cam axis and a left side of axle head 42, right axle door bolt 31,31 ' coaxial line, make a left side, right axle door bolt 31,31 ' overcomes the elastic force of spring 32, respectively to the right, the left side from latch hook 34 is moved in the left side, right two bodies of rod 340,340 ' shackle notch 341, withdraw from 341 ', just finish unlocking action, the lock of this structure, because its left side, right axle door bolt 31,31 ' termination is provided with a left side of being convenient to embed latch hook 34 under spring 32 effects, the right body of rod 340,340 ' shackle notch 341, curve slope ora terminalis 311 in 341 ', 311 ', so when the thief uses thin narrow sheet metal, as hair clip, insert the left side of lock body 30, right latch hook jack 35, in 35 ', withstand on a left side, right axle door bolt 31,31 ' curve slope ora terminalis 311, on 311 ', as shown in Figure 9, just can make a left side, right axle door bolt 31,31 ' respectively to the right, the left side is moved, make ora terminalis 311,311 ' from shackle notch 341, withdraw from 341 ', reach picking lock, the purpose of stealing; The lock 2 that has for this reason occurred a kind of band mechanism for opening/closing as shown in Figure 5 again, its mechanism for opening/closing is 42 the elongated plates door bolt 21 that is fixed on lock core 4 rotating shafts 41 terminals, with inserting rotary locking cylinder 4 behind the key, rotating shaft 41, elongated plates door bolt 21 is turned an angle, to reach the left and right body of rod 340 that embeds or withdraw from latch hook 34,340 ' shackle notch 341,341 '.This band reaches the Vehicle lock structure of open and close lock purpose mechanism for opening/closing with rotation elongated plates door bolt 21, when being used for that spacing is big between left and right two bodies of rod 340 of requirement, 340 ', as shown in Figure 6, the rotational angle of its plate door bolt 21 is too small, plate often taking place fasten 21 two ends with a bolt or latch and can not be fully withdraw from from shackle notch 341,341 ', causes unlatching, locking inconvenience.

The lock that the purpose of this utility model provides and a kind ofly can avoid theft, locking is opened the gear teeth bar formula mechanism for opening/closing convenient, that functional performance is good.

The utility model is made up of lock body, lock core, latch hook and pinion and-rack mechanism for opening/closing, and lock body is provided with the rotating shaft that the centre bore that lock core is installed and left and right lockhole, lock core that latch hook is installed are provided with the tape spool end; Latch hook takes the shape of the letter U, and its left and right body of rod inboard is arranged with breach; The pinion and-rack mechanism for opening/closing by gear and left and right complications (

) shape latch board composition, gear is fixedly mounted on lock core rotating shaft axle head; Left and right

One end of shape latch board is respectively the tooth bar with gears engaged, embeds the lock bolt end in the latch hook breach when its other end is provided with locking.

Because the utility model is made up of lock body, lock core, latch hook and pinion and-rack mechanism for opening/closing, lock body is provided with the rotating shaft that the centre bore that lock core is installed and left and right lockhole, lock core that latch hook is installed are provided with the tape spool end; Latch hook takes the shape of the letter U, and its left and right body of rod inboard is arranged with breach; The pinion and-rack mechanism for opening/closing by gear and left and right complications (

) shape latch board composition, gear is fixedly mounted on lock core rotating shaft axle head; Left and right

One end of shape latch board is respectively the tooth bar with gears engaged, embeds the lock bolt end in the latch hook breach when its other end is provided with locking.During locking state, the engagement of rack and pinion on the left and right latch board makes that the lock bolt end is embedded in the latch hook breach it on, remains positioned in locking states, causes the burglar to unblank to approach narrow metal, thereby has good theftproof performance; When unblanking or locking, key is inserted lock core and rotational lock core, rotating shaft, gear fixed thereon is rotated thereupon, have with the left and right latch board of the tooth bar of its engagement thereupon to the right, a left side or left and right side move, make the lock bolt end of left and right latch board withdraw from from breach or embed, to finish the action of unblanking or locking, locking is opened convenient, functional performance is good, thereby reaches the purpose of this utility model.

Fig. 1 is the utility model structural representation stereogram

Fig. 2 is an A-A sectional drawing among Fig. 1

Fig. 3 is a B-B sectional drawing (locking states) among Fig. 2

Fig. 4 is a B-B sectional drawing (opening) among Fig. 2

Fig. 5 is the Vehicle lock structure constructed profile (spacing just often between the latch hook body of rod) of existing belt length bar rotor plate door bolt

Fig. 6 is the Vehicle lock structure constructed profile (when spacing is big between the latch hook body of rod) of existing belt length bar rotor plate door bolt

Fig. 7 is the lock decomposition texture schematic isometric of existing strap cam axle head

Fig. 8 is a C-C sectional drawing (locking states) among Fig. 7

Fig. 9 is C-C sectional drawing (burglar pries open the lock state) among Fig. 7

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1 and Figure 2, the utility model is made up of lock body 11, lock core 12, latch hook 13 and pinion and-rack mechanism for opening/closing 14, lock body 11 is made up of lock body shell 111 and lock body lid 112, lock body shell 111 is a shedding shell, which is provided with lock core hole 1111, the inboard is provided with fagging 1112 and left and right guide pillar 1113,1114; The plate body that lock body lid 112 matches for periphery and lock body shell 111 opening shapes, its towards lock body shell 111 sides be provided with lock body shell 111 on fagging 1112 corresponding faggings 1121, the left and right lockhole cover 1122,1123 that matches with guide pillar 1113,1114 on the lock body shell 111 and support the bar 1124 of dashing forward; Lock core 12 is provided with the rotating shaft 121 of threaded axle head 1211; Latch hook 13 takes the shape of the letter U, and its left and right body of rod 131,132 inboards are arranged with breach 133,134; Pinion and-rack mechanism for opening/closing 14 by gear 141 and left and right complications (

) shape latch board 142,143 compositions, gear 141 is provided with the central through hole 1411 on the screw thread axle head 1211 that is fixedly mounted on lock core 12 rotating shafts 121, and be fixed on the axle head 1211 through nut 122, as shown in Figure 3, one end of left and right indentation latch board 142,143 is the tooth bar 1421,1431 that meshes with gear 141, when being provided with locking, its other end embeds the lock bolt end 1422,1432 in the breach 133,134 on the latch hook 13 left and right bodies of rod 131,132.

Desire to unblank or when locking, key is inserted lock core 12 also rotational lock core 12, rotating shaft 121, the gear 141 that is fixed on its axle head 1211 is rotated thereupon, have with the latch board 142,143 of the tooth bar 1421,1431 of gear 141 engagement thereupon to the right, a left side or left and right side move, make the lock bolt end 1422,1432 of left and right latch board 142,143 in the left and right body of rod 131, the 132 inboard breach 133,134 of latch hook 13, withdraw from or embed, finish and unblank or lock.

Claims (3)

1, a kind of lock of gear teeth bar formula mechanism for opening/closing, it has lock body, lock core and latch hook, and lock body is provided with central through hole that lock core is installed and the left and right lockhole that latch hook is installed; Lock core is provided with the rotating shaft of tape spool end; Latch hook takes the shape of the letter U, and then is arranged with breach in its left and right body of rod, it is characterized in that it also has the pinion and-rack mechanism for opening/closing, it by gear and left and right complications ( ) shape latch board composition, gear is fixedly mounted on lock core rotating shaft axle head; Left and right

One end of shape latch board is respectively the tooth bar with gears engaged, embeds the lock bolt end in the latch hook breach when its other end is provided with locking.

2, the lock of gear teeth bar formula mechanism for opening/closing according to claim 1, it is characterized in that described lock body is made up of lock body shell and lock body lid, lock body shell is a shedding shell, which is provided with lock core hole, the inboard is provided with fagging and left and right guide pillar, the plate body that lock body lid coincide for periphery and lock body shell opening shape frame, its towards the lock body shell-side be provided with lock body shell on the corresponding fagging of fagging, with lock body shell on guide pillar, the left and right lockhole cover that matches and support the bar of dashing forward.

3, the lock of gear teeth bar formula mechanism for opening/closing according to claim 1 and 2 is characterized in that described rotating shaft is provided with the end of thread, and through nut that gear is fixed thereon.

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