CN86208369U

CN86208369U - Thief-against lock for bicycle

Info

Publication number: CN86208369U
Application number: CN 86208369
Authority: CN
Inventors: 张佳华; 张福民; 丁贤良; 张君华; 薛永年
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-10-28
Filing date: 1986-10-28
Publication date: 1987-10-07

Abstract

The utility model brings forward an improvement scheme of cancelling a dialing button on a lock tongue aiming at the defects that a lock casing is not firm enough and a clamp pin is easy to be dialed of the existing fixed bicycle lock. A panel and a base plate which are formed by forging molding are combined into an integral lock body by dowel pins and rivets, a common marble lock core is connected with a worm into a whole, and a user rotates the worm by a rocking handle type key to drive a toothed lock tongue which is inosculated with the worm to obtain the opening and closing purposes. Owing to the integrity of the lock casing and the locking action of the worm, the anti-theft ability of the bicycle lock is improved. Besides, because the structure of the utility model is simple, cost of the utility model is low.

Description

Thief-against lock for bicycle

The utility model is a kind of anti-theft lock for bicycle.

Existing lock has chain type, and it is not too convenient to use, and firm inadequately, fixed in addition, adopts thick iron sheet as shell, blocks dead bolt with bayonet lock, reaches lock car purpose, and it is comparatively convenient to use.Its method that opens and closes bayonet lock has the pellet shot from a slingshot locking-type, number locking-type and button.The topmost weak link of fixed lock is that lock housing is firm inadequately, and the toggle on the lock dead bolt has also influenced the globality of lock, and kayser easily is struck.Stealer just can be unblanked in the extremely short time with a screwdriver, is difficult for being realized.

The utility model is intended to strengthen the pick-proof ability of lock.At the weakness of present fixed lock, improvement project is proposed.

The utility model lock body is a forging forming, divides base plate and panel, and the former embeds the latter, through dowel and closing-up, becomes a firm integral body.Remove the toggle on the dead bolt, open and close dead bolt and adopt the worm screw method of rotation.Lock stamen part is integrated by common spring lock stamen and worm screw and forms.The dead bolt periphery has the tooth that coincide with worm screw, by crank type key turns lock stamen, makes worm screw drive dead bolt, reaches the purpose of switching.

The advantage that adopts this scheme is 1. simple in structure.Lock has only four big parts, two rivets and essential pellet shot from a slingshot and the spring of cylinder lock, and technology all can realize at present.2. the pick-proof ability greatly improves.Owing to cancelled the toggle on the dead bolt, realized the integration of lock body, and because of base plate is to embed panel, as long as certain precision is arranged, simple tool can't picking lock.Adopt worm screw to open method, can not pried open fully under the situation in lock housing, worm screw is still blocked dead bolt, has further improved the pick-proof ability.3. cost of production is not high.Because of simple in structure, the corresponding minimizing of manufacturing procedure, cost can reduce.Shortcoming, the more common lock of the utility model want heavy, open and close lock trouble slightly.

Below be embodiment of the present utility model.

Among the figure (1), 1. be band tooth dead bolt.

Among the figure (2), 2. be pellet shot from a slingshot eye hole.6. be lock core, by worm screw 3. with the common spring lock core 4. combine as a whole the institute form.5. be the crank type key.3. worm screw matches with the tooth that 1. dead bolt is gone up.

Figure (3) is the plan view of base plate (12).Among the figure, (13) are pellet shot from a slingshot eye hole, and are the same with the pellet shot from a slingshot eye hole (13) on panel (15) (see figure 4), and semicircular in shape when the amalgamation of panel base plate, becomes a complete circular pellet shot from a slingshot eye, and 2. are complementary with pellet shot from a slingshot eye hole that 6. lock core is gone up.7. be groove 8., be used to insert lock core 6..7. 4. laying method insert, and 8. 3. worm screw insert.9. be respectively applied for base plate and panel riveted is in aggregates and will lock and fix onboard for rivet hole and screw hole.10. be groove, 10. form dead bolt rotation path 1. with figure (4) further groove.(11) be dowel, match with the dowel eye (14) of scheming in (4) middle D-D sectional drawing.8. and the section shape of different parts 10. A-A, 7. B-B and C-C sectional drawing have shown groove.

Figure (4) is the plan view of panel (15).Among the figure, 7., 8., 9., 10. and (13) all with scheming (3).Each several part section such as D-D are shown in E-E and the F-F.For pick-proof, the groove of panel (15) 10. two ends are the end plates that protrude, section is shown in D-D.Because of base plate (12) will embed panel (15), so (12) are than (15) Xiao Yiquan.

Figure (5) be panel (15) and lock core 6. with dead bolt assembling drawing 1..7. and 8. among the figure, 10. 1. dead bolt packed groove into, and 6. lock core has packed groove into.The G-G section has shown that 1. panel (15) and dead bolt assemble section.H-H has shown the sectional drawing of panel, dead bolt and worm screw part.

Figure (6) is a general assembly drawing.Among the figure, 1. 6. lock core pack into behind the panel (15) with dead bolt, and base plate (12) embeds panel (15) again.As long as with closing-up.The pellet shot from a slingshot of packing into from the top at last, spring is sealed, and full lock just can use.I-I and J-J sectional drawing have shown the sectional drawing at relevant position.

During use, only need to insert the crank type key, clockwise or rotate counterclockwise, dead bolt is freely stretched.

Claims

1, a kind of novel anti-theft lock for bicycle is characterized in that by the base plate of forging forming and panel through dowel and closing-up lock body in aggregates, lock cylinder and worm screw combine as a whole, and worm screw matches with band tooth dead bolt again and combines.

2, according to the lock of claim (1), it is characterized in that by lock core and with the worm screw of its one, and worm screw matches with band tooth dead bolt again and combines.