CN2866729Y

CN2866729Y - Bucket antitheft lock

Info

Publication number: CN2866729Y
Application number: CN 200620101445
Authority: CN
Inventors: 王秀林
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-02
Filing date: 2006-03-02
Publication date: 2007-02-07
Anticipated expiration: 2016-03-02

Abstract

A vane type anti-theft cylinder is characterized in that a cylinder casing is nested outside a internal plug, the internal plug engages with inner surface of a casing, a plurality of transversely parallel annular recesses is provided on the outer surface, a pair of the curve vanes and a offsetting spring is arranged in each annular recess, two axial grooves are provided on the outer surface of the internal plug, two communicating grooves are provided at the relative position of the cylinder casing, a relative break is provided at the outer ring edge of each curve vane, two axial long grooves are provided at the relative position of the inner surface of the casing, a bevel transition is provided between the two sides of each long grooves and the inner surface of the casing, two round fastener axis arranged between the long groove and the communicating groove and a groove of the internal plug engages as a locking screen mechanism. As two axial long grooves is machining on the inner surface of the casing, without providing spring mechanism and breakint through the inner surface of the casing, the utility model has the advantages of simple construction, convenient product process, less cost of the product, and higher productivity and reliability.

Description

The vane type anti-theft lock end

Technical field: the utility model relates to a kind of anti-theft lock end of vane type.

Background technology: general cylinder type tapered end theftproof performance is not strong, has occurred the anti-theft lock end of vane type now.Common vane type tapered end is provided with housing, sleeve and internal cylinder, and each blade places the cannelure of internal cylinder and key to cooperate.When each blade was pushed to lockset position of coupler, the spring mechanism of being located in the housing was shifted axis onto in the groove of sleeve and internal cylinder, and internal cylinder is rotated together with sleeve and unblanks.Since need be in housing mounting spring mechanism, the requirement on machining accuracy of housing is improved, complex structure, the assembling amount of tapered end increases, punch the strength reliability reduction that housing mounting spring mechanism makes housing, and increased the cost of production of vane type anti-theft lock end greatly.

Summary of the invention: at the deficiencies in the prior art, the utility model provides a kind of shell structure advantages of simple, vane type anti-theft lock end convenient for production.

The utility model comprises housing and the internal cylinder that is placed in one, the internal cylinder outside is socketed with sleeve and inner walls is rotatably assorted, internal cylinder is provided with some horizontal parallel annular grooves, be furnished with a pair of arc shaped blade and corresponding back-moving spring in each cannelure, be arranged with two axial notches on the outer wall of internal cylinder, the relevant position then is provided with two grooves on the sleeve, the edge, outer ring of each arc shaped blade also is equipped with a corresponding breach, be provided with two axial elongated slots in the relevant position of inner walls, and between the two sides of each elongated slot and the inner walls chamfered transition, article two, circle shaft block places corresponding elongated slot respectively, between the groove, and and movable cooperation of the groove of internal cylinder constitute locking screens mechanism.

Inner walls of the present utility model only need be processed two axial elongated slots, naturally promote circle shaft block by chamfered transition, need not to be provided with spring mechanism, inner walls does not penetrate, and is simple and reasonable, produces very convenient, the assembling amount of tapered end is few, significantly reduced cost of production, enhanced productivity, and the strength reliability of whole anti-theft lock end is improved.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings: Fig. 1 is the main structure schematic diagram of embodiment;

Fig. 2 is that the A of internal cylinder among Fig. 1 is to view;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the schematic diagram of Fig. 3 unlocking condition.

Embodiment: as shown in Figures 1 to 4, internal cylinder 2 outsides are socketed with sleeve 3 and place in the housing 1 and are rotatably assorted, and internal cylinder 2 is provided with some horizontal parallel annular grooves 4, are furnished with a pair of arc shaped blade 6 and corresponding back-moving spring 5 in each cannelure 4.On the outer wall of internal cylinder 2, be arranged with two axial notches 8, the relevant position then is provided with two grooves 9 on the sleeve 3, the edge, outer ring of each arc shaped blade 6 also is equipped with a corresponding breach 7, be provided with two axial elongated slots 10 in the relevant position of housing 1 inwall, and between the two sides of each elongated slot 10 and housing 1 inwall is chamfered transition, article two, circle shaft block 11 places respectively between corresponding elongated slot 10, the groove 9, and and internal cylinder 2 movable cooperation of groove 8 constitute locking screens mechanisms.

Breach 7 positions of each arc shaped blade 6 in different cannelures 4 are also different, can be combined into many kinds of shaped as key bits, and repetitive rate is low.Present embodiment is provided with axial having strong market potential and 12 runs through each cannelure 4 on internal cylinder 2, constitute the blade rotation position limiting structure, and the end with a pair of arc shaped blade 6 can directly not contacted, and Key 13 inserts.Cannelure 4 quantity on the general internal cylinder 2 are five to six, and internal cylinder 2 can be not long like this, and the quantity of arc shaped blade 6 is also more than enough, and theftproof performance is better.

Under normal lock state, as shown in Figure 3, the spring 5 that is reset of two arc shaped blades 6 in same cannelure 4 is pushed open, the breach 7 of each arc shaped blade 6 and the groove 8 of internal cylinder 2 stagger, circle shaft block 11 is pulled to screens between the groove 9 of the elongated slot 10 of housing 1 and sleeve 3 like this, both can't relatively rotate, the tapered end locking.After key 13 inserts, as shown in Figure 4, the breach 7 of each arc shaped blade 6 is pulled to internal cylinder 2 corresponding grooves 8 and overlaps the position, constitute complete groove, twist key 13 this moment, circle shaft block 11 is moved on in the groove 8 by the transition of the prism of the elongated slot 10 of housing 1 nature, and internal cylinder 2 can be rotated unlatching together with sleeve 3 in housing 1 like this.Between side and housing 1 inwall is the elongated slot 10 of chamfered transition, and it is smooth and easy to make circle shaft block 11 move nature, has simplified the tapered end overall structure greatly, good reliability, and processing is very convenient.

Claims

1, a kind of vane type anti-theft lock end, comprise housing and the internal cylinder that is placed in one, the internal cylinder outside is socketed with sleeve and inner walls is rotatably assorted, internal cylinder is provided with some horizontal parallel annular grooves, be furnished with a pair of arc shaped blade and corresponding back-moving spring in each cannelure, be arranged with two axial notches on the outer wall of internal cylinder, the relevant position then is provided with two grooves on the sleeve, the edge, outer ring of each arc shaped blade also is equipped with a corresponding breach, it is characterized by: the relevant position at housing (1) inwall is provided with two axial elongated slots (10), and between two sides of each elongated slot (10) and housing (1) inwall is chamfered transition, article two, circle shaft block (11) places corresponding elongated slot (10) respectively, between the groove (9), and and movable cooperation of the groove (8) of internal cylinder (2) constitute locking screens mechanism.

2, vane type anti-theft lock end according to claim 1 is characterized by: cannelure (4) quantity on the internal cylinder (2) is five to six.

3, vane type anti-theft lock end according to claim 1 and 2 is characterized by: also be provided with axial having strong market potential (12) on the internal cylinder (2) and run through each cannelure (4), constitute the blade rotation position limiting structure.