CN206385923U - A kind of double anti-cross lock pin parts of antitheft door - Google Patents

Abstract

A kind of double anti-cross lock pin parts of antitheft door, including lock core, as the lock core set being sleeved on lock core, lock core and lock core set have multigroup hoodle hole respectively, every group of hoodle hole is 4, it is distributed on its circumference, and it is provided with hoodle and spring in each hoodle hole, the lock core rear portion, which is fixed with one, is used for the steel pin for preventing that lock core from rotating, position in the lock core set corresponding to steel pin is provided with a pin-and-hole, steel pin is loosely inserted into pin-and-hole from the upward extension of lock core, and lock core set rear portion is provided with one and can accommodate the looping pit that steel pin is rotated with lock core, the rear portion of pin-and-hole and looping pit insertion；Return spring is provided with the lock core at steel pin rear.Anti- lock core is set to rotate steel pin and card from anti-lock core shaft to displacement and anti-drilling sheet in lock body, this lock body has the outstanding advantages that anti-technology unlocking and violence are unlocked.

Description

A kind of double anti-cross lock pin parts of antitheft door

Technical field

The utility model is related to lock manufacturing field, particularly with preventing four ribs of technology unlocking and violence unlocking function Lock（That is cross lock）Technical field.

Background technology

Existing four ribs lock is commonly called as cross lock, and it is mainly made up of lock core and lock core set, has many respectively in lock core and lock core set Group hoodle hole（Generally three groups or four groups）, every group of hoodle hole is 4, on the circumference for being distributed on lock core and lock core set.It is by industry Boundary is referred to as A grades of locks, and its theftproof performance is relatively low.It is general to use unlocking tool, technology unlocking can be achieved within several seconds；Meanwhile, commonly Cross lock does not possess anti-violence unlocking performance yet, can easily be destroyed and be unlocked using break-in tool such as locking pliers etc..

Utility model content

The purpose of this utility model is the defect for existing cross lock and providing a kind of can reliably prevent technology unlocking The double anti-cross lock pin parts of antitheft door.

What the purpose of this utility model was realized in：A kind of double anti-cross lock pin parts of antitheft door, including lock core, use Be sleeved in the lock core set on lock core, lock core and lock core set has multigroup hoodle hole respectively, and every group of hoodle hole is 4, is distributed on Hoodle and spring are provided with its circumference, and in each hoodle hole, the lock core rear portion, which is fixed with one, to be used to prevent lock core Position in the steel pin of rotation, lock core set corresponding to steel pin is provided with a pin-and-hole, and steel pin is from the upward extension of lock core It is loosely inserted into pin-and-hole, and lock core set rear portion is provided with one and can accommodated after the looping pit that steel pin is rotated with lock core, pin-and-hole Portion and looping pit insertion；Return spring is provided with the lock core at steel pin rear.

The lock core front portion is provided with an annular groove, and 4 hoodle holes of the most previous group of the lock core are located in the annular groove, and two Individual arc card is actively placed in annular groove, and the lock core, which is put in two interval sections between two arc cards, to be distinguished A spacer is provided with, the thickness of spacer is slightly larger than the thickness of arc card, and limited aunular sheet is crimped on two spacers, And above two arc card outer surfaces, and spacer is mutually fixed through screw with lock core set；

One jump ring one end is fixed on the right part of an arc card, and the other end is fixed on a left side for another arc card Portion, another jump ring one end is fixed on the left part of an arc card, and the other end is fixed on the right part of another arc card；Two When individual jump ring is not by external force, the arc inner edge of each arc card stretches into lock core annular groove and can be with the bullet in two neighboring hoodle hole Pearl contacts, so as to prevent the axial displacement of lock core, arc card is in lock-out state；When key stretches into lock core, above-mentioned two hoodle Hoodle stress in hole and overcome jump ring elastic force, jack-up arc card, is allowed to depart from annular groove from inside to outside, reaches lock core and lock core During the interface of set, arc card is in the state that unlocks.

Also there is enclosing cover, it is anterior that enclosing cover snapping is fixed on lock core set.

Anti-drilling sheet is additionally provided between the limited aunular sheet and enclosing cover.

Whole lock core is run through in the downward part of the steel pin, and is flushed with lock core bottom.

Also there is inner cap, inner cap is fixed on lock core set rear end face through screw.

Compared with prior art, the utility model has the characteristics that and advantage：

First, anti-theft lock principle

Key unlocking is that a key inserts lock core hole, and rotation key rotates lock core, so as to drive the anti-theft bolt of lock body to stretch Go out（Retract）, reach and lock（Unlock）Purpose.In order to prevent non-original key（Unlocking tool）Unlocked using same method, This lock core employs following methods

1. prevent lock core from rotating

Increase a through hole at pin tumbler of lock cylinder hole rear portion（It is made up of pin-and-hole and annular through-hole）, a steel pin is fixed in hole, Steel pin one end is in hole, and about 1.5 millimeters of lock core is stretched out in one end.Extension is just stuck in lock core and covered in corresponding keyway（Also referred to as Pin-and-hole, steel pin diameter is more smaller than width of keyway）.Lock core is enclosed on rear portion since keyway half, endoporus reaming（Also referred to as looping pit） Rear end face is covered to lock core（Counter bore diameter is more bigger than steel pin length, to ensure that steel pin can rotate with lock core in reaming）, in reaming One return spring is set between part and lock core.During locking states, because steel pin is stuck in keyway, lock core can not rotate, and allow Unlocking tool can not rotate lock core, so as to reach the purpose of antitheft.（See figure）

2. anti-lock core shaft is to displacement

The annular groove of about 1 millimeter of a depth, and increase and 4 hoodles of pin tumbler of lock cylinder hole identical in groove are cut in lock core front portion Hole, groove width is identical with hoodle bore dia.The front end face that groove inwall covers with lock core in one plane, is slightly less than ring with 2 thickness The curved metal card of groove width is in groove（Card is limited ring plate and is clipped in the middle with lock core set front end face）, prevent lock core axial direction Displacement.2 card lengths all have passed through 2 adjacent hoodle holes, and card can be ejected ring in the presence of hoodle external force Groove, when the interface that lock core covers with lock core is reached exactly on the inside of 2 cards in annular groove, the unblock of lock core card can do axial direction Displacement.After key extraction, hoodle disappears to the external force of card, and the jump ring of card external diameter end is under spring force card Piece is pressed back into annular groove.If allowing 2 card internal diameters to be just displaced to the interface of lock core and lock tube, just have to allow in groove 4 hoodles push up warp in card respectively, as long as there is a hoodle top card to exceed lock core diameter in groove in 4 hoodles, hoodle will Lock core is stretched out, on the front end face for being stuck in lock core set, lock core cannot do axial displacement, as long as there is a bullet in groove in 4 hoodles Pearl top card does not arrive lock core diameter, and that card is also stuck in groove, and lock core can not do axial displacement.Because lockhole space is narrow It is small, when 4 direction hoodles have unlocking tool runin in cross key hole, also block other instruments and entered lockhole, lock core The hoodle of script is just had no idea runin, and this has also just reached the purpose of antitheft.（See figure）

3. correct unlock

Lock core hole is injected with original key, the interface that now lower pellet covers in lock core and lock core on lock core, in unblock State, while the anterior card internal diameter of lock core is also displaced to the interface that lock core covers with lock core, card is in released state, lock core Axial displacement inwardly is done with key insertion, steel pin also skids off keyway with lock core（Anti-rotation mechanism is released）, reaming is covered into lock core It is interior, it is rotated further by key one week, drives anti-theft bolt on lock body to stretch out（Retract）, successfully lock（Unlock）.Then key is extracted, is being returned In the presence of the spring of position, lock core is pushed back original position（Steel pin is returned in keyway）, card pushed back in annular groove, and lock core reenters anti- Pirate of the open locking states.

2nd, anti-violence is opened

1. metal lid and anti-drilling sheet pass through QPQ processing, enclosing cover and anti-drilling sheet case hardness reach 55 degree of Rockwell hardness Left and right, the hardness with drill bit is similar, and drill bit can skid on enclosing cover or anti-drilling sheet, and brill is not entered.If theft bradawl Head is from pellet in key hole drill bad lock core, and the anti-rotational and anti-axial displacement mechanism of this lock core remains on intact, and anti-theft lock is not It can be opened.

2. installation method, lock core rear end is screwed on the lock body in door, during installation lock core enclosing cover fill with Door is equally concordant, or is slightly retracted 1 millimeter of door, allows locking pliers to have no idea to clamp, also it is prevented that the destruction of locking pliers.

3rd, this lock core scope of application

1. core-inset type locks antitheft door；

2. built-in lock antitheft door；

3. safety cabinet cabinet door.

Brief description of the drawings

Fig. 1 is the profile that the utility model lock core part is in locking states（3 groups of hoodle holes are shown, only finally in figure Hoodle and spring be shown in one hoodle hole, hoodle and spring not shown in another two groups of hoodle holes, but its situation and last It is just the same in hoodle hole）.

Fig. 2 is the profile that the utility model is in opening.

Fig. 3 and Fig. 3 a are respectively（Fig. 2 removes enclosing cover and anti-drilling sheet and limited aunular sheet）Arc card locking states and open Open the schematic diagram of state.

Fig. 3 b are that steel pin is located at pin-and-hole（Alternatively referred to as keyway）Internal cylinder is in the schematic diagram of locking states.

Fig. 4, Fig. 5, Fig. 6 are the front view, left view and top view of lock core shown in Fig. 1, Fig. 2 respectively.

Fig. 7 is profiles of the Fig. 5 along line A-A.

Fig. 8 is the stereogram of the set of lock core shown in Fig. 1, Fig. 2.

Fig. 9 is Fig. 8 front view.

Figure 10 is profiles of the Fig. 9 along E-E lines.

Figure 11 is Fig. 8 rearview.

Figure 12 is profiles of the Figure 11 along line B-B.

Figure 13 is the front view of anti-drilling sheet shown in Fig. 1.

Figure 14 is the stereogram of anti-drilling sheet shown in Fig. 1.

Figure 15 is the stereogram of enclosing cover shown in Fig. 1.

Figure 16 is Figure 15 profile.

Embodiment

Safe-guard door lock is general by panel, lock core（That is the lock core part of this case）And lock body（Have in it and rotated and driven by lock core Dynamic spring bolt mechanism）Composition.

Fig. 1, Fig. 2 show the double anti-cross lock pin parts of this antitheft door.Mainly by lock core 1 and as being sleeved on lock core Lock core set 2 is constituted.There is multigroup hoodle hole in lock core 1 and lock core set 2 respectively, every group of hoodle hole is 4（Can also be more）, uniformly Hoodle and spring 7c are provided with its circumference, and in each hoodle hole, the rear portion of lock core 1, which is fixed with one, to be used to prevent lock core Positions in 1 steel pin 5 rotated, lock core set 2 corresponding to steel pin 5 are provided with a pin-and-hole 2a, and steel pin 5 is upward from lock core 1 Extension is loosely inserted into pin-and-hole 2a, and 2 rear portions of lock core set are provided with one and can accommodate the annular that steel pin 5 is rotated with lock core Hole 2b, pin-and-hole 2a rear portion formed with looping pit 2b insertions can accommodate steel pin from pin-and-hole along lock core opening axially into looping pit Mouthful；Return spring 6 is provided with the lock core at steel pin rear（In Fig. 1, Fig. 2, a left side be in or after, the right side is outer or preceding, and key is from forward direction Unlocking is realized to lock core is stretched into rear）.

When return spring is not by external force, lock core is bounced back in lock core set and in locking states, and return spring is by key During insertion（Adjacent two hoodle is located at the upper and lower for the interface that lock core covers with lock core respectively）During thrust backward, lock core stretches out Lock core set is outer and is in opening.

Referring to Fig. 3, the front portion of lock core 1 is provided with an annular groove 1a（Referring to Fig. 3 a）, 4 bullets of the most previous group of the lock core 1 The hole of bead is located in the annular groove, and two arc cards 8a, 8b are actively placed in annular groove, is located at two arc cards on the lock core set 2 A spacer 9 is respectively arranged with two interval sections between piece 8a, 8b, the thickness of spacer 9 is slightly larger than arc card 8a, 8b thickness, limited aunular sheet 10 are crimped on two spacers 9, and above two arc card 8a, 8b outer surfaces, Spacer is mutually fixed through screw with lock core set 2；

One jump ring 12a one end is fixed on arc card 8a right part, and the other end is fixed on another arc card 8b left part, another jump ring 12b one end is fixed on arc card 8a left part, and the other end is fixed on another arc card Piece 8b right part；When two jump rings are not by external force, the arc inner edge of each arc card stretch into lock core annular groove and with it is two neighboring Hoodle contact in hoodle hole, so as to prevent the axial displacement of lock core, arc card is in lock-out state；When key stretches into lock core, Hoodle stress in above-mentioned two hoodle hole and overcome jump ring elastic force, jack-up arc card, is allowed to depart from annular groove, position from inside to outside The interface that lock core covers with lock core is moved on to, arc card is in the state that unlocks（The central angle of the arc inner edge of arc card is big In 90 °, between 110 °~150 °）.The radius of curvature of the arc inner edge of card is identical with lock core annular groove.Width of annular groove etc. In the diameter of hoodle hole（Hoodle can enter annular groove）, card thickness is slightly less than annular groove width.Card ejection annular groove is card Arcing lower edge is located at outside the interface that lock core covers with lock core, now, because hoodle is stuck in lock core set front end face, lock core axial displacement It is locked again.Referring to Figure 15, Figure 16, also with enclosing cover 4, it is anterior that the snapping of enclosing cover 4 is fixed on lock core set 2.Referring to Fig. 8~Figure 12, Enclosing cover is fastened in lock core set（The reducing cylinder bodily form）Small end on.Referring to Figure 13, Figure 14, limited aunular sheet 10 and enclosing cover 4 it Between be additionally provided with anti-drilling sheet 11.Referring to Fig. 1, whole lock core 1 is run through in the downward part of steel pin 5, and is flushed with lock core bottom.Referring to Fig. 1, also with inner cap 3, inner cap is fixed on lock core through screw 3a and covered on 2 rear end faces.

Under locking states shown in Fig. 1, referring to Fig. 3 b, steel pin is in pin-and-hole 2a（Also referred to as keyway）It is interior, so as to prevent lock core Rotation.The hoodle in hoodle hole is blocked on the interface of lock core and lock core set simultaneously, lock core thus can not be in lock core set Rotate, at the same time, referring to Fig. 3, two arc cards are located in the anterior annular groove of lock core, arcing lower edge and the annular groove bottom of card Face coincide（The two radius of curvature is identical）, and be inserted in annular groove, so as to prevent lock core axially displaced.

Under opening shown in Fig. 2, after key insertion lock core, by the outside jack-up of hoodle in hoodle hole, and make（Fig. 1） Upper hoodle 7a（I.e. upper pearl）With lower pellet 7b（Descend pearl）It is located at the upper and lower both sides of the two interface of lock core and lock core set respectively, Lock core can thus be rotated in lock core set；The active force from inside to outside that two arc cards are also transmitted by key through pellet, And two cards is ejected lock core annular groove, being displaced to lock core with lock core covers interface, and lock core is therefore along axle under key thrust The displacement of line direction, makes steel pin deviate from from pin-and-hole and enter in looping pit 2b（Referring to Fig. 3 b）, so as to realize lock core in lock core Rotation in set, final realize is unlocked.After key external force is eliminated, lock core and the homing under return spring effect, in lock Closed state.

Claims (6)

1. a kind of double anti-cross lock pin parts of antitheft door, including, lock core（1）, as the lock core set being sleeved on lock core（2）, Lock core（1）With lock core set（2）Inside there is multigroup hoodle hole respectively, every group of hoodle hole is 4, is distributed on its circumference, and each bullet Hoodle and spring are provided with the hole of bead（7c）, it is characterized in that, the lock core（1）Rear portion, which is fixed with one, to be used to prevent lock core （1）The steel pin of rotation（5）, the lock core set（2）It is interior to correspond to steel pin（5）Position be provided with a pin-and-hole（2a）, steel pin（5）From Lock core（1）Upward extension is loosely inserted into pin-and-hole（2a）It is interior, and lock core set（2）Rear portion, which is provided with one, can accommodate steel pin （5）The looping pit rotated with lock core（2b）, pin-and-hole（2a）Rear portion and looping pit（2b）Insertion；

Return spring is provided with the lock core at steel pin rear（6）.

2. a kind of double anti-cross lock pin parts of antitheft door according to claim 1, it is characterized in that, the lock core（1）Before Portion is provided with an annular groove, the lock core（1）Most previous group 4 hoodle holes（1a）In the annular groove, two arc cards （8a、8b）Actively it is placed in annular groove, the lock core set（2）It is upper to be located at two arc cards（8a、8b）Between two spacer regions It is interior to be respectively arranged with a spacer（9）, spacer（9）Thickness be slightly larger than arc card（8a、8b）Thickness, spacing ring Piece（10）It is crimped on two spacers（9）On, and positioned at two arc cards（8a、8b）Above outer surface, spacer is through screw With lock core set（2）It is mutually fixed；

One jump ring（12a）One end is fixed on an arc card（8a）Right part, the other end is fixed on another arc card （8b）Left part, another jump ring（12b）One end is fixed on an arc card（8a）Left part, the other end is fixed on another Arc card（8b）Right part；When two jump rings are not by external force, lock core annular groove and energy are stretched into the arc inner edge of each arc card Contacted with the hoodle in two neighboring hoodle hole, so as to prevent the axial displacement of lock core, arc card is in lock-out state；Key is stretched When entering lock core, the hoodle in above-mentioned two hoodle hole is overcome jump ring elastic force by key to hoodle power, from inside to outside jack-up arc Card, is allowed to depart from annular groove, and when being displaced to lock core with lock core set interface, arc card is in the state that unlocks.

3. a kind of double anti-cross lock pin parts of antitheft door according to claim 2, it is characterized in that, also with enclosing cover（4）, Enclosing cover（4）Snapping is fixed on lock core set（2）It is anterior.

4. a kind of double anti-cross lock pin parts of antitheft door according to claim 3, it is characterized in that, the limited aunular sheet （10）With enclosing cover（4）Between be additionally provided with anti-drilling sheet（11）.

5. the double anti-cross lock pin parts of a kind of antitheft door according to Claims 1 to 4 any claim, its feature It is, the steel pin（5）Downward part run through whole lock core（1）, and flushed with lock core bottom.

6. a kind of double anti-cross lock pin parts of antitheft door according to claim 5, it is characterized in that, also with inner cap（3）, Inner cap is through screw（3a）It is fixed on lock core set（2）On rear end face.