CN201513007U

CN201513007U - Anti-theft lock

Info

Publication number: CN201513007U
Application number: CN2009202356373U
Authority: CN
Inventors: 曹云周
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-16
Filing date: 2009-10-16
Publication date: 2010-06-23
Anticipated expiration: 2019-10-16

Abstract

The utility model relates to an anti-theft lock. At least one of a primary anti-pull-out pin and a secondary anti-pull-out pin arranged on the two sides of a key hole is arranged inside the groove of a lock barrel and is in sliding fit with the lock barrel, and at least one matched return spring is arranged between the lock barrel and the anti-pull-out pin, so that the corresponding anti-pull-out pin is in a trend of moving toward the key hole. An anti-pull-out raised strip is arranged on the inner side of the anti-pull-out pin in the height direction, and the outer side of the anti-pull-out pin has a cylindrical surface. Two anti-pull grooves are arranged at the head part of the lock body. The anti-pull-out raised strips on the primary anti-pull-out pin and the secondary anti-pull-out pin are in contact with each other in the width direction of the key hole and block the key hole, and the elastic force of the return spring on the secondary anti-pull-out pin is larger than the elastic force of the return spring on the primary anti-pull-out pin, so that the secondary anti-pull-out pin pushes the primary anti-pull-out pin over the axial line of the lock barrel. The secondary anti-pull-out pin is positioned inside the lock barrel and enables the primary anti-pull-out pin to extend into the anti-pull-out groove. The specifications of the primary anti-pull-out pin and the secondary anti-pull-out pin enable a key to be in contact with the two anti-pull-out raised strips when the right key is inserted into the key hole. The cylindrical surfaces of the two anti-pull-out pins are positioned inside the cylindrical surface on the outer side of the lock barrel or are flush with the surface. The lock has good anti-theft performance.

Description

Anti-theft unlocking tool

Technical field

The utility model relates to a kind of lockset, particularly relates to the strong lockset of a kind of anti-pirate of the open performance.

Background technology

The structure of existing a kind of common lockset is: it comprises lock body, be contained in the lock cylinder in the lock body rotationally, lock core is axially having keyhole, lock core and lock body are provided with pellet shot from a slingshot and spring, locking plate and spring perhaps are set, with the mutual rotation between restriction lock core and the lock body, the head end of lock core has the vallecular cavity that radially connects, lay respectively at the keyhole both sides and radially at least one main pull-preventing pin of positioned opposite and secondary pull-preventing pin are placed in the vallecular cavity and are slidingly matched, be provided with a back-moving spring that matches between lock core and each pull-preventing pin, so that corresponding pull-preventing pin is in the trend to the motion of keyhole direction all the time, the inboard of each pull-preventing pin short transverse is provided with the anti-raised line of dialling, the outside is the face of cylinder, radially the anti-raised line of dialling on the main pull-preventing pin of positioned opposite and the secondary pull-preventing pin does not contact on the width of keyhole each other, the stem of lock body is provided with two anti-allocating slots for main pull-preventing pin and secondary pull-preventing pin stretching motion, the specification of main pull-preventing pin and secondary pull-preventing pin makes when this lockset is in locking states, and the face of cylinder, the outside of two pull-preventing pins is within the face of cylinder, the outside of lock core or is concordant with this face.

This lockset makes it have following defective because of the part that comes with some shortcomings on its structure design:

Because described two anti-raised lines of dialling do not contact on the width of keyhole each other, the specification of main pull-preventing pin and secondary pull-preventing pin makes when this lockset is in locking states, the face of cylinder, the outside of two pull-preventing pins is within the face of cylinder, the outside of lock core or is concordant with this face, in other words, prevent having the gap between group raised lines and keyhole can't being sealed for described two, main pull-preventing pin and secondary pull-preventing pin are in all the time in the vallecular cavity of lock core and separate with lock body, can't pin lock core, also can't realize self-locking, like this, the height that may detect pellet shot from a slingshot by described two anti-gaps of dialling between the raised lines arrange degree or locking plate spacing and move radially degree, the burglar uses steel disc (silk), hair clip, unlocking tools such as master key can inject easily and touch in the keyhole, set pellet shot from a slingshot or locking plate correctly and unblank, therefore, a little less than the anti-pirate of the open performance of this lockset, security reliability is poor;

In addition, only be provided with a back-moving spring that matches because of between lock core and each pull-preventing pin, like this, the stressed very difficult maintenance balance of both ends of the spring, instability when spring uses, reliability are relatively poor, particularly when spring was aging, the two ends of spring can contact with the tight of lock core and corresponding pull-preventing pin in disengaging, so that further reduced the safety of this lock.

The utility model content

The technical problems to be solved in the utility model provides the strong lockset of a kind of anti-pirate of the open performance.

For solving the problems of the technologies described above, the utility model provides a kind of anti-theft unlocking tool, it comprises lock body, be contained in the lock cylinder in the lock body rotationally, lock core is axially having keyhole, lock core and lock body are provided with pellet shot from a slingshot and spring, locking plate and spring perhaps are set, with the mutual rotation between restriction lock core and the lock body, the head end of lock core has the vallecular cavity that radially connects, lay respectively at the keyhole both sides and radially at least one main pull-preventing pin of positioned opposite and secondary pull-preventing pin are placed in the vallecular cavity and are slidingly matched, be provided with at least one back-moving spring that matches between lock core and each pull-preventing pin, so that corresponding pull-preventing pin is in the trend to the motion of keyhole direction all the time, the inboard of each pull-preventing pin short transverse is provided with the anti-raised line of dialling, the outside is the face of cylinder, the stem of lock body is provided with two anti-allocating slots for main pull-preventing pin and secondary pull-preventing pin stretching motion, radially the anti-group raised line on the main pull-preventing pin of positioned opposite and the secondary pull-preventing pin contacts with each other on the width of keyhole and keyhole is sealed, the elastic force of secondary pull-preventing pin upper reset spring is greater than the elastic force of main pull-preventing pin upper reset spring, so that secondary pull-preventing pin pushed away the lock core axis with main pull-preventing pin, secondary pull-preventing pin is within the face of cylinder, the outside of lock core, and main pull-preventing pin is put in corresponding that anti-allocating slot, the specification of main pull-preventing pin and secondary pull-preventing pin makes when the key of this lockset inserts in the keyhole, the anti-raised line of dialling in the inboard of key and two pull-preventing pins contacts, and the face of cylinder, the outside of two pull-preventing pins is within the face of cylinder, the outside of lock core or concordant with this face.

Adopt after the above structure, because radially the anti-group raised line on the main pull-preventing pin of positioned opposite and the secondary pull-preventing pin contacts with each other on the width of keyhole and (in other words keyhole is sealed, there is not the gap in described two anti-dialling between the raised line), main pull-preventing pin puts in corresponding that anti-allocating slot, lock core and lock body are fused, can pin lock core all the time and realize self-locking, thereby reach the purpose of locked lock core, like this, described two anti-raised lines of dialling have limited various tool insertion keyhole, promptly allowing to overcome back-moving spring inserts, but various tool will further force main pull-preventing pin to pin lock core and (realize that promptly identification is locked automatically, lock core can't rotate), make non-lock key or other unlocking tool (as steel disc, steel wire, hair clip, master key etc.) can't this lockset of technical unlocking, so that this lockset can be by pirate of the open;

Again since the specification of main pull-preventing pin and secondary pull-preventing pin make when the key of this lockset inserts in the keyhole, key contacts with the anti-raised line of dialling in the inboard of two pull-preventing pins, and the face of cylinder, the outside that makes two pull-preventing pins is within the face of cylinder, the outside of lock core or concordant with this face (being a common face of cylinder), like this, when opening this lockset, can remove of the self-locking of main pull-preventing pin with correct key (containing the key that duplicates) to lock core, and make all pellets shot from a slingshot or locking plate all check the number into the position, lock core can rotate freely under this state, therefore, have correct key only and could open this lockset.

In sum, the anti-pirate of the open performance of this lockset is strong, security reliability good, and making does not have the burglar of correct key to unblank.

According to detection, the antitheft ETAD expected time of arrival and departure of this lockset reached more than 1000 minutes.

The structure of described main pull-preventing pin and secondary pull-preventing pin is identical, each pull-preventing pin is T shape structure and is made of vertically anti-reversed column and the anti-reversed column of level, the anti-raised line of dialling is positioned on the anti-reversed column of level away from a side of vertically preventing reversed column, and the length direction along the anti-reversed column of level is arranged, anti-dial the length of raised line and keyhole is wide and its section is truncated cone shape, side near vertically anti-reversed column on the anti-reversed column of level has two counterbores that are symmetrical in vertically anti-reversed column, be equipped with a back-moving spring that matches between lock core and each counterbore, vertically the outer face of anti-reversed column is the face of cylinder.

Be provided with two back-moving springs that match because of between lock core and each pull-preventing pin, two back-moving springs play a role simultaneously, formed dual fail-safe, like this, the stressed balance that just keeps easily at each back-moving spring two ends, stable when each spring uses, reliability is better, guarantees to have a spring closely to contact with lock core and corresponding pull-preventing pin all the time, down to the safety that has further improved this lockset.

Main pull-preventing pin and the secondary pull-preventing pin placed in the vallecular cavity of described lock core head end are four, and two adjacent pull-preventing pins of the same race are along the axial interlaced arrangement of lock core; The elongated slot of each anti-allocating slot for connecting, the length of anti-allocating slot makes it can hold four corresponding pull-preventing pins that recline mutually.

Description of drawings

Fig. 1 is the stereogram that partly cuts open of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the stereogram of the main pull-preventing pin in the utility model;

Fig. 5 is the structural representation that is inserted with in the utility model behind its correct key.

The specific embodiment

Below in conjunction with accompanying drawing the utility model embodiment is specifically described:

It should be explained that,, in Fig. 1, Fig. 2, Fig. 5, all implement to dissect for main pull-preventing pin and secondary pull-preventing pin for ease of clearly demonstrating for the purpose of the problem.

Referring to Fig. 1-Fig. 5:

This anti-theft unlocking tool comprises lock body 1, is contained in lock cylinder 2 in the lock body 1 rotationally, and lock core 2 is axially having keyhole 2a, and lock core 2 and lock body 1 are provided with six groups of pellets shot from a slingshot 4 and spring 3, with the mutual rotation between restriction lock core 2 and the lock body 1.

The head end of lock core 2 has the vallecular cavity 2b that radially connects, lay respectively at keyhole 2a both sides and radially four main pull-preventing pins 6 and four secondary pull-preventing pins 5 of positioned opposite be placed among the vallecular cavity 2b and be slidingly matched (two main pull-preventing pins 6 and two secondary pull-preventing pins 5 only are shown among Fig. 1, Fig. 2, Fig. 5), two adjacent pull-preventing pins of the same race are along the axial interlaced arrangement of lock core 2.

Main pull-preventing pin 6 is identical with the structure of secondary pull-preventing pin 5.Be that example is specifically described with main pull-preventing pin 6 below: main pull-preventing pin 6 is T shape structure and is made of the vertical anti-reversed column 6b of anti-reversed column 6a and level, the anti-raised line 6c of dialling is positioned at level and prevents that reversed column 6b goes up the side away from vertically anti-reversed column 6a, and the length direction along the anti-reversed column 6b of level is arranged, anti-dial the length of raised line 6c and keyhole 2a is wide and its section is truncated cone shape, the side that the anti-reversed column 6b of level goes up near vertically anti-reversed column 6a has two counterbore 6d that are symmetrical in vertically anti-reversed column 6a, be equipped with a back-moving spring 8 that matches between lock core 2 and each counterbore 6d, be provided with two corresponding spring step 2c in the lock core 2, so that main pull-preventing pin 6 is in the trend to the motion of keyhole 2a direction all the time, vertically the outer face of anti-reversed column 6a is the face of cylinder.The structure of secondary pull-preventing pin 5 repeats no more.As seen, the inboard of each pull-preventing pin short transverse is provided with anti-group raised line, the outside is the face of cylinder.

The stem of lock body 1 is provided with two anti-allocating slot 1a for main pull-preventing pin 6 and secondary pull-preventing pin 5 stretching motions, the elongated slot of each anti-allocating slot 1a for connecting, and the length of anti-allocating slot 1a makes it can hold four corresponding pull-preventing pins that recline mutually.

For four main pull-preventing pins 6 and four secondary pull-preventing pins 5 of being placed among the vallecular cavity 2b, each main pull-preventing pin 6 and with its radially the secondary pull-preventing pin 5 of that of positioned opposite constitute one group of pull-preventing pin structure, constitute four groups of pull-preventing pin structures altogether.

For every group of pull-preventing pin structure, corresponding two anti-group raised lines contact with each other on the width of keyhole 2a and keyhole 2a are sealed, the elastic force of secondary pull-preventing pin 5 upper reset springs 7 is greater than the elastic force of main pull-preventing pin 6 upper reset springs 8, so that secondary pull-preventing pin 5 pushed away main pull-preventing pin 6 in the axis of lock core 2, secondary pull-preventing pin 5 is within the face of cylinder, the outside of lock core 2, and main pull-preventing pin 6 is put among corresponding that anti-allocating slot 1a, the specification of main pull-preventing pin 6 and secondary pull-preventing pin 5 makes when the key Y of this lockset inserts among the keyhole 2a, key Y contacts with the anti-raised line of dialling in the inboard of two pull-preventing pins, and makes the face of cylinder, the outside of two pull-preventing pins concordant with the face of cylinder, the outside of lock core 2 (being a common face of cylinder).

Like this, when opening this lockset, can remove (containing the key that duplicates) self-locking of 6 pairs of lock cores 2 of main pull-preventing pin with correct key Y, and make all pellets shot from a slingshot 4 all check the number into the position, lock core 2 can rotate freely under this state, therefore, has correct key Y only and could open this lockset.

Above-described only is an embodiment of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.Such as: main pull-preventing pin and secondary pull-preventing pin also can be taked other form of structure that is suitable for, the main pull-preventing pin of placing in the vallecular cavity of lock core head end and the quantity of secondary pull-preventing pin can determine as required flexibly, the anti-length of dialling raised line also can be less than the width of keyhole, in addition, the specification of main pull-preventing pin and secondary pull-preventing pin can make that also the face of cylinder, the outside of two pull-preventing pins was within the face of cylinder, the outside of lock core when the key of this lockset inserted in the keyhole.

Claims

1. anti-theft unlocking tool, it comprises lock body, be contained in the lock cylinder in the lock body rotationally, lock core is axially having keyhole, lock core and lock body are provided with pellet shot from a slingshot and spring, locking plate and spring perhaps are set, with the mutual rotation between restriction lock core and the lock body, the head end of lock core has the vallecular cavity that radially connects, lay respectively at the keyhole both sides and radially at least one main pull-preventing pin of positioned opposite and secondary pull-preventing pin are placed in the vallecular cavity and are slidingly matched, be provided with at least one back-moving spring that matches between lock core and each pull-preventing pin, so that corresponding pull-preventing pin is in the trend to the motion of keyhole direction all the time, the inboard of each pull-preventing pin short transverse is provided with the anti-raised line of dialling, the outside is the face of cylinder, the stem of lock body is provided with two anti-allocating slots for main pull-preventing pin and secondary pull-preventing pin stretching motion, it is characterized in that: radially the anti-group raised line on the main pull-preventing pin of positioned opposite and the secondary pull-preventing pin contacts with each other on the width of keyhole and keyhole is sealed, the elastic force of secondary pull-preventing pin upper reset spring is greater than the elastic force of main pull-preventing pin upper reset spring, so that secondary pull-preventing pin pushed away the lock core axis with main pull-preventing pin, secondary pull-preventing pin is within the face of cylinder, the outside of lock core, and main pull-preventing pin is put in corresponding that anti-allocating slot, the specification of main pull-preventing pin and secondary pull-preventing pin makes when the key of this lockset inserts in the keyhole, the anti-raised line of dialling in the inboard of key and two pull-preventing pins contacts, and the face of cylinder, the outside of two pull-preventing pins is within the face of cylinder, the outside of lock core or concordant with this face.

2. anti-theft unlocking tool according to claim 1, it is characterized in that: the structure of main pull-preventing pin and secondary pull-preventing pin is identical, each pull-preventing pin is T shape structure and is made of vertically anti-reversed column and the anti-reversed column of level, the anti-raised line of dialling is positioned on the anti-reversed column of level away from a side of vertically preventing reversed column, and the length direction along the anti-reversed column of level is arranged, anti-dial the length of raised line and keyhole is wide and its section is truncated cone shape, side near vertically anti-reversed column on the anti-reversed column of level has two counterbores that are symmetrical in vertically anti-reversed column, be equipped with a back-moving spring that matches between lock core and each counterbore, vertically the outer face of anti-reversed column is the face of cylinder.

3. anti-theft unlocking tool according to claim 1 and 2 is characterized in that: main pull-preventing pin and the secondary pull-preventing pin placed in the vallecular cavity of lock core head end are four, and two adjacent pull-preventing pins of the same race are along the axial interlaced arrangement of lock core; The elongated slot of each anti-allocating slot for connecting, the length of anti-allocating slot makes it can hold four corresponding pull-preventing pins that recline mutually.