CN2086291U - Combined anti-stealing lock for bicycle - Google Patents

Abstract

The utility model relates to a combined anti-stealing lock for a bicycle, which is installed on the back fork (or the front fork) of the bicycle. A locking head block made of cast steel is in inner connection with an odditional block by a bolt and combines the steel pipe of the fork, becoming a non-removable integral. A locking core block made of the cast steel is in inner connection with the odditional block by the bolt and combines the other steel pipe of the fork, becoming a non-removable integral. One end of a steel bar is in a tapered shape and is provided with a ring groove, and the other end is a head. The lock is passes through from a locking head hole into a locking core hole, and the lock is in locking form. The lock core is controlled by a marble and has good security. A screw-bolt tunnel and a spring tunnel are both plugged by a steel plug and can be not disassembled, and the utility model utilizes the good mechanical properties of the steel and the non-removable properties and no intermittency to confront violence.

Description

Combined anti-stealing lock for bicycle

The utility model is to adopt compound mode that tapered end piece and lock core piece are fastened on respectively on the steel pipe of back fork of bicycle (or front fork), and realizes the bicycle lock device of locking with rod iron.

The utility model is to belong to lock, shutoff device one class in the hardware products.

Bicycle must assemble lock in order to prevent loss, existing various iron sheet lock all is installed on the back fork of bicycle, to pin the back circle, various iron sheet lock all is to involute with two iron sheets, and rivet connects, the gap unavoidably appears in the fore shaft place, steals car human one and can destroy the large-scale instrument that changes cutter and so on, open lock in the short time.Existing soft lock can be locked the preceding circle or the back circle of bicycle, mainly is divided into steel wire strand lock and Steel chain lock, and is too much overweight owing to not doing, and also cut off or twists off at short notice easily.

The purpose of this utility model is to provide a kind of with the bicycle lock device of rod iron with tapered end and lock core realization locking, and it can prevent effectively that the car people in flagrant delict will lock destruction steathily, opens, even car is transported back house, also is difficult to lock is destroyed, takes off.

Combined type anti-theft bicycle lock of the present utility model is mounted on the back fork of bicycle (or front fork), is purpose to pin the back circle.It is to embrace on a steel pipe of back vent with a tapered end piece and one attached, be lined with the thin rubber of one deck between pipe and the piece, internally it is tightly connected with four bolts, form a composite member, and the steel plug that anti-markets with four bands is dead with bolt duct plug, makes tapered end piece, attached, steel pipe be unified into a non-removable integral body; Equally, embrace on another root steel pipe of back vent, it is connected into non-removable composite member integral body with bolt, steel plug with a lock core piece and one attached.Tapered end partly is drilled with a through hole that has step, and lock core partly is equipped with lock cylinder and faces tapered end one sidetracking has a blind hole corresponding with the tapered end hole.A rod iron, the one end is tapered and driven cannelure, and the other end is the chieftain.Rod iron rod body has done vertical indent processing and chrome-faced (or quenching) is handled.When the needs locking, pass tapered end through hole partly with rod iron, lock in the lock core blind hole partly, rod iron just passes rim and realizes locking like this.When driving, rod iron is to extract the tapered end piece out, is placed in the exclusive clamps that is attached on the back vent.

Tapered end piece of the present utility model, lock core piece, attached are all made by cast steel, connect internally with vehicle frame with bolt to be integral, and add with the steel plug bolt duct plug is dead, have and do not rot, and tear the function of not falling open.It is all dead with steel plug plug that lock cylinder and several springs duct are housed on the lock core piece, has enough intensity and confidentiality.The rod iron diameter is that 8-14 millimeter and excellent body have been done vertical indent processing and surface strength is handled, and can prevent to impact and sawing destruction, and the starting point of this device is to oppose violence with the non-dismountable property of the good mechanical properties of iron and steel and device itself, little intermittence.

The concrete structure of utility model is provided by following examples and accompanying drawing.

Fig. 1 is the utility model combined type anti-theft bicycle lock assembling schematic diagram.

Fig. 2 is that the utility model combined type anti-theft bicycle lock connects tapered end part and lock core part sectioned view partly with rod iron.

Drawing describes the details and the mode of occupation of the concrete device that the utility model proposes in detail in conjunction with Fig. 1, Fig. 2.

This installs tapered end piece Fig. 1 (10), lock core piece (3) and two attached (1) (13) that useful cast steel is made, embrace on car fork steel pipe (11) with tapered end piece (10) and attached (13), link up internally with (8) four on bolt, and the bolt duct is filled in dead with (9) four of the steel plugs that band anti-markets; Equally, embrace on car fork steel pipe (2) with lock core piece (3) and attached (1), connect internally with (6) four on bolt, and the bolt duct is filled in dead with (7) four of the steel plugs that band anti-markets, tapered end piece and attached like this, lock core piece and attached tightly are connected into non-removable composite member with two steel pipes that car is stuck respectively.

Pass tapered end with rod iron (12) and partly lock in the blind hole of lock core part (3) in the duct of (10), just finished locking process vehicle frame the right and left.

As shown in Figure 2, the tapered end partly hole on Fig. 2 (1) is a through hole that step is arranged, (6), and it is corresponding with the tapered end hole that lock core partly is drilled with a blind hole (4) on (5).Lock core partly is equipped with lock cylinder (3) and dead bolt (2) on (5), and the spring duct (13) on lock core piece Fig. 1 (12) and tongue duct (14) are all dead with steel plug plug, can't dismantle.

Claims (4)

1, the combined type anti-theft bicycle lock is a kind of lock device that tapered end is partly linked up about partly with lock core with rod iron, the tapered end piece that this device has a rod iron and makes with cast steel, lock core piece and two attached, it is characterized in that embracing on the steel pipe (11) on the bicycle back fork (or front fork) with one attached (13) with tapered end piece Fig. 1 (10), link up internally with (8) four on bolt, and, make (11) three of attached (13) steel pipes of tapered end piece (10) be combined into the non-removable integral body of close-coupled with being with the steel plug (9) that anti-markets that four bolt ducts plugs are dead; Equally, embrace on (2) on another root steel pipe of back vent with lock core piece (3) and another attached (1), with (6) four connections of bolt, steel plug (7) beyond the Great Wall, make (2) three of attached (1) steel pipes of lock core piece (3) be combined into the non-removable integral body of close-coupled, pass tapered end with rod iron (12) and partly lock in the hole of lock core part (3) in the duct of (10), whole device is the locking shape.

2, device according to claim 1 is characterized in that rod iron Fig. 1 (12) diameter is the 8-14 millimeter, and an end is tapered and driven cannelure, and the other end is the chieftain, and excellent body has been made vertical indent and handled, and excellent body surface was done chromium plating (or quenching) and handled.

3, device according to claim 1, it is characterized in that the hole (6) of being bored on tapered end part Fig. 2 (1) is a through hole that step is arranged, lock core partly be drilled with on (5) one with tapered end partly (1) go up the corresponding blind hole of through hole (6) (4), lock core partly is equipped with a lock cylinder (3) and dead bolt (2) on (5).

4,, it is characterized in that lock cylinder spring eye (5) and tongue hole (4) on lock core piece Fig. 1 (3) are dead with steel plug plug according to claim 1,3 described devices.

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