CN2687246Y

CN2687246Y - Lockset with protective cover

Info

Publication number: CN2687246Y
Application number: CN 200420021678
Authority: CN
Inventors: 于广福
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-07
Filing date: 2004-04-07
Publication date: 2005-03-23
Anticipated expiration: 2014-04-07

Abstract

The utility model discloses a take protection casing tool to lock, including tapered end, lock core, the casing of hiding the lock core, but this casing and tapered end relative rotation are connected undetachable, but be equipped with in the casing that has the key groove with the directional key that assembles of key hold in the palm of having the manipulation push rod, but the key holds in the palm and does not have the rotation for casing axial displacement and connects, makes the key hold in the palm constitutions such as the spring that resets. When the lock needs to be unlocked, a special key is directionally installed in the key support, the push rod key support is operated to drive the key to enter the lock cylinder hole along the shell, then the shell is rotated clockwise, the lock is unlocked, the key support is withdrawn under the action of the spring, and the key can be taken down. The anti-theft lock has the advantages of ingenious design concept, reasonable structure and hard damage to the shell of the firm protective cover, further improves the integral anti-theft performance of the lock, and adds a new product for anti-theft lock products.

Description

Band protective cover lockset

Technical field

The utility model relates to the lockset theft-prevention structure, especially is with the protective cover lockset.

Background technology

Not only bicycle is many to be known as China of bikedom, and bicycle, motorcycle are also many simultaneously, and the vehicle that is parked in the public place is often stolen, and personal property is sustained a loss, and causes social unstability.In existing bicycle lock technology, anti-theft bicycle lock is quite a lot, and is various in style, and style is different, although reinforce with two kinds of locksets, also can't avoid stolen misfortune.Though prior art is in pick-proof, the technical multiple scheme of having taked such as anti-drilling; but because lock core is unhidden; as long as a master key is arranged; can both open; people have designed many lockset protective covers, protective jacket and so on for this reason; though the protection of lock core has been play a part certain, but has not dealt with constantly brilliant pilferage technology of burglar.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of band protective cover lockset that makes hidden fully, simple in structure firm, the flexible operation of lock core, has better theftproof.

Its embodiment is: a kind of band protective cover lockset, comprise tapered end, lock core and protective cover, it is characterized in that described protective cover promptly is provided with the housing of hidden lock core on tapered end, described housing can relatively rotate but non-disconnectable the connection with tapered end, housing is provided with key, in the key holder equipped with private key arranged, be provided with directed mounting structure between key holder and the key, the key holder connects push control rod, the key holder can move axially with respect to housing and not have and be rotationally connected, and the spring that the key holder is resetted.

Be provided with it baffle plate that is fixed with one, has the key pilot hole in the housing of described tapered end adjacent position.

The fixing mechanism of described baffle plate and housing is that installation is joined in annular groove on the baffle plate and the convex annular fastening on the housing.

The tapered end of institute's art and housing relatively rotate but non-disconnectable the connection is that annular groove on the tapered end is pulled with the convex annular on the housing and joined in conjunction with being connected.

Described key holder and disk, push rod are the Contiuum type structure.

Described key holder and housing are buckled by the straight trough on the key holder disk and housing correspondence position axial protruding or the activity of key cooperates and forms the key holder and can move axially not have and be rotationally connected.

Oriented structure between described key holder and the key is an alignment pin.

Design feature of the present utility model is that the lock core and the lock core hole of lock is hidden fully; the weak link of lock is protected; the burglar does not have assistant's part; general key can't be opened; it is skillfully constructed, and is rational in infrastructure, and firm protective cover housing is difficult to destroy; further improve the whole theftproof performance of lock, and increased new varieties for anti-theft lock product.

Description of drawings

Fig. 1 is the utility model protective roof structure schematic diagram.

Fig. 2 is the A-A sectional view (comprising tapered end, lock core) of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 2.

The specific embodiment

Below in conjunction with above-mentioned accompanying drawing embodiment the utility model is described in detail again.

As Figure 1-3, band protective cover lockset is existing tapered end, lock core adds the lock construction of protective cover, described protective cover promptly is provided with the housing 2 of hidden lock core 14 on tapered end 15, this housing can relatively rotate but non-disconnectable the connection with tapered end, promptly on tapered end, process annular groove 13, as annular half slot or annular rectangular channel, present embodiment adopts annular half slot, utilize Sheet Metal Forming Technology to housing 2 relevant positions processing convex annular button 12 as annular semicircle button then, the annular half slot radius of controlling well forms the gap combination greater than annular semicircle button radius, and housing can be relatively rotated but non-disconnectable the connection with tapered end.

In the housing 2 of tapered end 15 adjacent positions, be provided with the baffle plate 6 that is fixed with one, has key pilot hole 7, its fixing mechanism be annular groove 13 on the baffle plate as annular half slot equally with housing on convex annular button 12 as annular semicircle button, only both radiuses equate and the close-fitting combination, like this, can guarantee that the pilot hole center on the baffle plate is constant, can not block advancing or moving back of key.

Be provided with key holder 10 in the housing 2, disk 8 in the key holder and the push control rod 1 of stretching out outside the housing are the Contiuum type structure, special-purpose angle square shape key 3 is put into seat in the key holder from housing key 11, private key and key holder have a directed mounting structure, that is exactly the alignment pin 9 that is plugged in the key consignment hole, this alignment pin 9 and key 3 disjunctors.The key holder is to make key enter the vital part that lock core hole is realized unlatching through the baffle plate pilot hole by the promotion to push rod, therefore key holder 10 must be able to move axially with respect to housing 2 and not have and be rotationally connected, this syndeton also is to buckle movable the cooperation as semicircle and realize by the straight trough 17 on the key holder disk is buckled 16 as half slot or rectangular channel and housing correspondence position axial protruding, making key entrust that moving key can buckle with semicircle along housing serves as that guiding is made axial moving movement, its processing method is ditto described, and what make that the key holder resets is provided in a side of two back-moving springs 5 between little axle 4 of disk and baffle plate 6 grooves.

When unblanking special private key 3 is filled in along housing key 11, good back to be positioned promotes push rod 1, key holder 10 drives key and enters lock core hole, as long as clockwise rotate housing 2 this moment, lock promptly is opened, the key holder retreats to original position under spring 5 effects, key can be extracted, even the design is not if there is private key to have master key can't open lockset from the protective cover assistant yet.

Claims

1, a kind of band protective cover lockset, comprise tapered end (15), lock core (14) and protective cover, it is characterized in that described protective cover promptly is provided with the housing (2) of hidden lock core on tapered end, described housing (2) can relatively rotate but non-disconnectable the connection with tapered end (15), housing is provided with key (11), in the key holder (10) equipped with private key (3) arranged, be provided with directed mounting structure between key holder and the key, key holder (10) connects push control rod (1), key holder (10) can move axially with respect to housing (2) and not have and be rotationally connected, and the spring (5) that the key holder is resetted.

2, band protective cover lockset according to claim 1 is characterized in that being provided with it baffle plate (6) that is fixed with one, has key pilot hole (7) in the housing (2) of described tapered end (15) adjacent position.

3, band protective cover lockset according to claim 2, the fixing mechanism that it is characterized in that described baffle plate (6) and housing (2) are that the annular groove (13) on the baffle plate is installed with convex annular button (12) close-fitting on the housing.

4, band protective cover lockset according to claim 1 and 2, it is characterized in that described tapered end (15) and housing (2) relatively rotate but non-disconnectable the connection is that annular groove (13) on the tapered end is joined in conjunction with being connected with the convex annular button (12) on the housing is moving.

5, band protective cover lockset according to claim 1 and 2 is characterized in that described key holder (10) and disk (8), push rod (1) are the Contiuum type structure.

6, band protective cover lockset according to claim 1 and 2 is characterized in that axial protruding button the (16) or the activity of key by the straight trough (17) on the key holder disk and housing correspondence position of described key holder (10) and housing (2) cooperates and form the key holder and can move axially not have and be rotationally connected.

7, band protective cover lockset according to claim 1 and 2 is characterized in that the oriented structure between described key holder (10) and the key (3) is alignment pin (9).