CN2066060U

CN2066060U - Spring chain lock

Info

Publication number: CN2066060U
Application number: CN 90212096
Authority: CN
Inventors: 曹跃
Original assignee: Di Yuping
Current assignee: Di Yuping
Priority date: 1990-04-05
Filing date: 1990-04-05
Publication date: 1990-11-21

Abstract

The utility model belongs to a spring chain lock, comprising components such as a chain box, a chain, a lock head, a self-locking device, and a bolt device, etc. The spring chain lock is in quadrate shape. The spring chain lock is characterized in that the self-locking device locks a chain hole whose length can be selected simultaneously after the lock head is locked. The chain is made to be unable to move relatively after being locked. The utility model has the advantages of simple structure, convenient operation, shapely configuration, wide purpose, and safety. The spring chain lock which is in particular suitable for locking bicycles, tricycles, and motorbikes can be used for locking house doors and binding objects, etc. and is also suitable for traveling locks.

Description

Spring chain lock

The utility model belongs to a kind of spring chain lock.

Prior art: the chain lock of selling on the market, length is fixed, can not regulate, can not be applicable to the locking of different objects shape thing, promptly be used in bicycle, tricycle padlock, do not have the sense of security yet because the phenomenon that chain band car goes adrift together usually takes place, and use inconvenient, be not easy to keeping." annular bicycle lock " be non insurance especially, easily prizes, and purposes is single." Reel lock " (seeing CN87.215358U) is to be material with hawser, though length is adjustable, adopts parts such as ratchet, sour jujube key to fixation with steel wire, complex structure, cost is higher and steel wire itself is harder, not as chain easy to use.Another kind of " making things convenient for chain lock " (seeing CN2043991U) is to add a chain and a U-shaped locking bolt on common padlock, though the chain adjustable length, chain is exposed fully, is equivalent to carry a chain and a lock, the same inconvenience of using.

The purpose of this utility model is that design is a kind of easy to use, simple in structure, easily the new structure chain lock of making can be regulated chain length as required, and auto retractable or volume are not placed in the lock case time spent chain again, be convenient to keeping, use, to widen the range of application of chain lock.

The technical solution of the utility model and feature are: chain 2 is put into a chain box 11, one is fixed on and (also can be fixed in the case on the rotating reel 10, without reel), other end and tapered end 3 are fixing, in lock body, be provided with a self-locking device,, just be provided with one from bolt 5 at the place, access of chain box by forming from parts such as locking bolt 5 and springs 4, opened by pressure by spring 4 at ordinary times is from 5 one bevels of locking bolt shape that is connected with half garden.Its operating principle is: when using, tapered end is taken out from the chain box access, object by the needs locking, inject in the lockhole 6, tapered end 3 is pressed earlier and is promoted motion from the locking bolt inclined-plane, after spring 4 is compressed, just insert in the chain hole from the locking bolt other end, make chain length can not adjust and be fixed (even the position of chain cylindrical void not with from the locking bolt head on the same position line.As long as shake or pulling chain).At this moment, tapered end moves on again, presses to promote locking bolt 8, and locking bolt 8 is matched with the tapered end groove, locks by spring action again.When pinning, chain is locked by self-locking device simultaneously.When opening, insert in the keyhole 7 with key, shooting the lock-bolt, by the effect of spring 9, tapered end withdraws from lockhole automatically, and chain is got back in the lock case by the reel effect, under the locking bolt also effect at spring, gets back to original position.(shown in the accompanying drawing position)

The utility model characteristics are to form by lock, porose chain, tapered end, chain box, self-locking device, locking bolt device to select, to regulate the chain lock of length.Its advantage is:

1, Suo chain can be adjusted length with different fixing thing and fixation diameter, has enlarged range of application, the replacement of chain lock and has surpassed the corresponding function of existing annular bicycle lock and chain lock, is specially adapted to bicycle, the tricycle self-locking is locked mutually with fixture.Lock mutually as fixtures such as the same railing of bicycle, cement pole, big trees, also can lock mutually by several bicycles, but also the front and rear wheel of bicycle and tripod are locked mutually with fixture, also can be used for the gate, the relative locking of tying up and so on.

2, the utility model chain lock is elegant in appearance, easy to use, simple in structure, purposes is wide, safe and reliable, be easy to carry and travel with the lock.As locking in the plastics suitcase, by self chain bail, as if like vanity case when bag.Be attractive in appearance practical again, be beneficial in the travelling way and luggage, valuable case thing locked together the enhancing sense of security.

Accompanying drawing represents to make the embodiment behind the chain lock, and for clear, some parts adopts to be analysed and observe in this figure, and some parts adopts simplified painting, and chain has only been drawn two, and middle with the chain-dotted line signal, accompanying drawing only plays the structure function of signal chain lock.

When reality is made, reel 3 can be made into the structure similar with invar tape, also can be without spring, and rotating cylinder made and rolls up the similar structure of tape measure, rotate by one handle, in chain withdrawal case, also the own wt of reliable chain is put into case, a diameter from locking bolt 5 will match with chain cylindrical void or groove, activity freely, loose fit, the pressure of each spring will be selected for use moderate, whole lock 1 is riveted after making two halves earlier again, or fixes with other way, but must cannot see joint close in appearance.The position of lockhole not necessarily is placed on the position of existing scheme, also can exchange relatively, material generally selects for use intensity good, metal manufacturing in light weight, to guarantee safety factor, also can select the nonmetals manufacturing for use, as long as intensity is suitable, the shape of this programme is a kind of, also can be made into garden shape, shape such as square.Chain can be selected porose shape or groove shape for use.This programme also can be made into key operated two lock head devices, on arbitrary orientation, make a U-shaped tapered end exactly again, its locking bolt links to each other with locking bolt 8, drive lock together together, can conveniently select for use to the user, further enlarge the purposes of lock, this programme is a kind of, also has other scheme.

Claims

1, a kind of spring chain lock comprises lock body, chain box, reel, chain, tapered end, self-locking device, locking bolt device; It is characterized in that: in the lock body, be provided with chain box and self-locking device; When tapered end was locked, self-locking device locked chain by the chain cylindrical void simultaneously, made chain length can not adjust and be fixed.

2, according to the said spring chain lock of claim 1, it is characterized in that rotating reel is housed in drive chain case, chain is fixed on the volume, and can twist on the reel.

3,, it is characterized in that chain is porose chain or the chain that groove is arranged according to the said spring chain lock of claim 1.