CN2630401Y - Antitheft blade lock head - Google Patents

Abstract

The utility model relates to an anti-theft blade block, in particular to a head of an anti-theft lock used for a safe. Both a casing of the lock head and the blade supporter are cylinders with axial slots. The supporter is arranged in the core of the casing, and the narrow slot of the supporter is corresponding to the inside diameter slot of the casing. The solid part of the narrow slot end has a radial hole. A spring is arranged in the hole. The outer end of the spring is connected with an L-shaped round key. A plurality of blades are folded together and positioned in the core of the supporter. A code slot is corresponding to the bracket narrow slot and an ID slot in the casing, while the L-shaped round key is positioned in the space formed by the three slots. A hole larger than a semi-circle is in the core of the blade. The key is cylinder-shaped, which matches with the shape of the hole in centre of the blade and is provided with a plurality o radical slots. The utility model has the advantages of great cipher code, anti-technical unlocking and good anti-drilling, etc.

Description

Antitheft blade locking head

Technical field

The utility model relates to a kind of antitheft blade lock, is the antitheft padlock head that a kind of strongbox is used specifically.

Background technology

Because existing strongbox is bigger with the blade of blade lock, and the finite volume of lock body, the blade quantity that can hold is less, therefore, exists the little defective of size of key; Sound during unlatching than the people, be very easy to be unfavorable for antitheft by technical unlocking; Major part has adopted the blade lock of spring structure, and every blade all is subjected to the spring force effect, easier sounding during unlatching, and also feel is very obvious, also is easy to by technical unlocking; The structure of blade lock itself is to rely on blade to play the effect of lockset, in case the drilled backwardness that wears off of blade then can't be pinned, though have a lot of patents this is improved, but still can't pin anti-drilling poor-performing fully.

Summary of the invention

The purpose of this utility model is to lock existing the problems referred to above at the antitheft blade of present blade construction, designs big, the anti-technical unlocking of a kind of size of key, antitheft blade lock that anti-drilling performance is good.

For achieving the above object, the utility model has adopted following technical proposal: antitheft blade locking head, comprise the tapered end housing, be loaded on the blade rack in the tapered end housing, the some blades that have the password groove, nut and key, described tapered end housing is the cylinder of an internal diameter band axial groove, its core is equipped with blade rack, support is one to have the cylinder of the different axial grooves of two width, wherein the narrower groove of width is corresponding with the internal diameter groove of tapered end housing, there is a radial hole at slit ends entity place, one spring is arranged in the hole, spring outer termination one L shaped round key, described some blades stack and are positioned at the support core, each blade password groove and support slit, the internal diameter groove of tapered end housing is corresponding, and L shaped round key is positioned at the space that three grooves are formed, and blade has a projection to be arranged in the sipes of support in addition, the blade core has a hole greater than semicircle, described key is the cylinder strip, and its profile is corresponding with the hole shape of blade core, and some radial slots are arranged on the key.

The utlity model has following advantage: blade is contained between the tapered end housing and blade rack of cylinder shape, and volume is very little, can hold a fairly large number of blade, therefore can improve the size of key of lockset widely; After drilling blade, copper blade expands, and to extrapolation, then L shaped round key card gets tighter, adds the effect of spring force, can't open with L shaped round key, and it is anti-drilling functional; Spring force only to L shaped round key one end effect, do not directly act on blade, and spring force is very little, and blade area is little, and also little with the round key contact area, therefore, can not sound during rotation, also can not produce any feel, extremely difficult operation technique open method.

Description of drawings

Fig. 1 is the front view of the utility model embodiment

Fig. 2 is the blade front view of the utility model embodiment

Fig. 3 is the radial cross-section of the tapered end housing of the utility model embodiment

Fig. 4 is the pad front view of the utility model embodiment

Fig. 5 is the key front view of the utility model embodiment

Fig. 6 is the L shaped round key front view of the utility model embodiment

Among the figure, 1, the tapered end housing; 2, blade rack; 3, nut; 4, blade; 5, pad; 6, spring; 7, disk stage clip; 8, L shaped round key; 9, key.

The specific embodiment

Shown in Fig. 1,2,3,4,5,6, the lock core of present embodiment is made up of 8 blades 4 and associated mechanisms; There is the bigger gradient on one side of the internal diameter axial groove of tapered end housing 1, allows L shaped round key 8 along unidirectional back-out axial groove; And the diameter of L shaped round key 8 equals the bore axes of hood-like blade rack 2 cylinder thickness and tapered end housing 1 to the groove depth sum, and the bore axes of tapered end housing 1 equals blade 4 password groove depth to groove depth.

When lockset is in opening, the password groove of all blades 4 is all aimed at L shaped round key 8, the password groove allows L shaped round key 8 to enter within the space of its formation, key 9 rotates, utilize the gradient of tapered end housing 1 axial groove, overcome the effect of spring 6, L shaped round key 8 is pressed in the space of blade rack 2 slits and blade 4 password grooves formation, 9 of keys can rotational lock core, plays the effect unblanked; When lockset is in the lock state, the L shaped round key 8 of password groove misalignment that has a blade 4 at least, the password groove does not allow L shaped round key 8 to enter within the space of its formation, L shaped round key 8 can only be in the space of blade rack 2 slits and tapered end housing 1 axial groove formation, even use special tool to insert keyhole, also can't rotate, lockset is in the lock state.

Key 9 inserts in the keyhole of being made up of blade 4 and pad 5 core holes, and some radial slots are arranged above the key 9, and when it rotated, pad 5 endoporus were circular holes, do not rotate; Blade 4 endoporus then are more than half circular holes, and its shape matches with key 9, therefore will rotate with key 9.When key 9 has just been taken part in keyhole, the L shaped round key 8 of password groove misalignment of big multiple-blade 4; Because key 9 has the different radial slot of some depths, blade 4 is rotated by the sequencing of setting; Key 9 turns to after the certain angle, and all blades 4 rotate simultaneously, and this moment, the password groove of all blades 4 was all aimed at L shaped round key 8, and the password groove allows L shaped round key 8 to enter within the space of its formation, and key 9 again, and lockset is in opening.

One small lugs is arranged on the blade 4, and more than half circular hole breach of blade 4 cores is smooth, and small lugs is perpendicular to this smooth place, and this projection is arranged in the sipes of blade rack 2, because the effect of this projection, the slewing area of blade 4 is limited.Between per two blades 4 pad 5 is arranged, its endoporus is rounded, and its diameter is identical with blade 4, and pad 5 is established a projection, and bump width is consistent with the width of blade rack 2 sipes, and is positioned at wherein; Pad 5 also has a groove corresponding with the internal diameter groove of blade 4 password grooves, blade rack 2 slits and tapered end housing 1.

In order further to prevent technical unlocking, partial blade 4 is also established an antitheft groove at adjacent except that the password groove, and its flute profile is identical with the password groove, even blade 4 sends slight sound when rotating, also can't accurately judge the position of password groove.

Tapered end housing 1 and blade rack 2 all are hood-like cylinders, oppositely be linked in one, 8 blades 4 stack and are positioned at blade rack 2 hood-like cylinders, the projection of pad 5 and blade 4 is positioned at the sipes of blade rack 2, after stacking blade 4 at last, other superpose a pad 5 and disk stage clip 7, disk stage clip 7 another sides are close to the inner face of tapered end housing 1 cylinder, in case uppermost leaf sheet 4 and pad 5 are loosening, tapered end housing 1 end, blade 4 and pad 5 all have keyhole.

The head of key 9 is hemispherical, after blade 4 is vibrated, may go up the rotation that takes place a little in situ, and the keyhole distortion because key 9 heads are hemispherical, therefore also can enter keyhole smoothly.

8 blades 4 stack and are positioned at blade rack 2 hood-like cylinders, and the tapered end housing 1 of hood-like cylinder and blade rack 2 oppositely are linked in one, and nut 3 utilizes the internal thread of tapered end housing 1 and the shoulder of blade rack, and whole tapered end is fixed up.

Claims (5)

1, antitheft blade locking head, comprise the tapered end housing, be loaded on the blade rack in the tapered end housing, the some blades that have the password groove, nut and key, it is characterized in that described tapered end housing is the cylinder of an internal diameter band axial groove, its core is equipped with blade rack, support is one to have the cylinder of the different axial grooves of two width, wherein the narrower groove of width is corresponding with the internal diameter groove of tapered end housing, there is a radial hole at slit ends entity place, one spring is arranged in the hole, spring outer termination one L shaped round key, described some blades stack and are positioned at the support core, each blade password groove and support slit, the internal diameter groove of tapered end housing is corresponding, L shaped round key is positioned at the space that three grooves are formed, blade has a projection to be arranged in the sipes of support in addition, and the blade core has a hole greater than semicircle, and described key is the cylinder strip, its profile is corresponding with the hole shape of blade core, and some radial slots are arranged on the key.

2, antitheft blade locking head according to claim 1 is characterized in that more than half circular hole breach of blade core is smooth, and the blade projection is perpendicular to this smooth place, and partial blade is also established an antitheft groove at adjacent except that the password groove.

3, antitheft blade locking head according to claim 1 and 2 is characterized in that tapered end housing and blade rack all are hood-like cylinders, oppositely is linked in one, and blade stacks and is positioned at wherein, and the tapered end shell end has keyhole.

4, antitheft blade locking head according to claim 1 and 2, it is characterized in that between per two blades a pad being arranged, Circularhole diameter is identical with blade in it, pad also has a groove corresponding with the internal diameter groove of blade password groove, support slit and tapered end housing, pad is established a projection on this groove opposite, bump width is consistent with the width of support sipes, and is positioned at wherein.

5, according to claim 1,2 or 4 described antitheft blade locking heads, it is characterized in that bore axes that the diameter of L shaped round key equals hood-like blade rack cylinder thickness and tapered end housing to the groove depth sum, the degree of depth of the internal diameter axial groove of tapered end housing equals the degree of depth of blade password groove.

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