Closed mechanical lock and key thereof
Technical field
The present invention relates to a kind of closed mechanical lock and key thereof.
Background technology
At present, though known mechanical lock and key body thereof are different, unlatching is many, and snap also is distributed on the parallel lines in same cross section, is prone to put in technical application unlatching in the keyhole by instrument, makes lock core lose theftproof.
Summary of the invention
The object of the invention is to overcome existing machinery lock core unlatching tooth and directly exposes in lockhole, easily by the deficiency of technical application property unlatching.The invention provides a kind of closed mechanical lock and key thereof, be in closed state in its lock core keyhole all the time, common technology property unlocking tool can't be got involved, and can effectively prevent technical and is turned round the picking lock core by violent tool and unblank.
The technical solution adopted for the present invention to solve the technical problems is: circular lock core comprises shell, interior pressing spring, interior pressure pellet shot from a slingshot, locking key, rotary locking cylinder, circle wheel and cylindrical key.It is characterized in that: the lock core shell bullet groove is equipped with interior pressing spring, pellet shot from a slingshot and acts on locking key; Two locking keys place shell lock keyway and rotary locking cylinder lock keyway simultaneously; Locking key is connected as a single entity both, and shell fixedly rotary locking cylinder can not rotate, the protruding circle wheel of pore area in rotary locking cylinder circle wheel groove is equipped with; Circle wheel outer has circle wheel lock keyway and arc groove; Two locking keys place rotary locking cylinder lock keyway and circle wheel lock keyway simultaneously, and locking key is connected as a single entity both, and rotary locking cylinder is free to rotate; Key has the one group of groove that matches with circle wheel endoporus convexity; To have protruding key and insert rotary locking cylinder end socket endoporus pit through casing cover endoporus grinding undercut; Revolve three-sixth turn, locking key places circle wheel lock keyway and rotary locking cylinder lock keyway, and insert rotary locking cylinder end socket endoporus grinding undercut to convexity on the key this moment; Stir rotary locking cylinder (tail end connects the plectrum of unblanking) and rotate, drive plectrum and unblank.
The advantage that the present invention compares with prior art is: the one, and be enclosed type construction in the lock core keyhole, common skilled unlocking instrument can't be got involved.The 2nd, because eight circle wheels are housed in the rotary locking cylinder circle race; And each circle wheel outer is provided with two circle wheel lock keyway and ten arc grooves that groove depth is different; Make the combination of eight circle wheel lock keyway positional alignment that hundred million kinds of variation patterns arranged, under situation not directly perceived, by stirring the convexity of circle wheel endoporus; Be difficult to find accurately the lock keyway position corresponding with locking key, the technical opening rate is very low.The 3rd, the lock core shell lid is used steel material, makes through Technology for Heating Processing, and high-intensity Prying-resistant and drilling-resistant performance is arranged.The 4th, steel circle wheel shape anti-drill pad is rotatable in rotary locking cylinder, strengthens its anti-drilling performance.
Description of drawings
Fig. 1 is lock core and key side generalized section.
Fig. 2 is Figure 1A-A generalized section.
Fig. 3 is a lock core shell side generalized section.
Fig. 4 is a rotary locking cylinder side generalized section.
Fig. 5 is a rotary locking cylinder end socket floor map.
Fig. 6 is a lock core shell lid floor map.
Fig. 7 is a key side generalized section.
Fig. 8 is a key groove plane structure sketch map.
Shown in the figure:
1, plectrum;
2, shell, 21, cap liner, 22, interior pressing spring, 23, interior pressure pellet shot from a slingshot, 24, go up lock keyway, 25, pin-and-hole, 26, screw, 27, lock keyway down, 28, bullet groove;
3, locking key, 31, go up the locking key escape, 32, locking key escape down;
4, rotary locking cylinder, 41, rotary locking cylinder top, 42, the rotary locking cylinder bottom, 43, go up lock keyway, 44, circle wheel groove, 45, straight pin, 46, the tail end straight pin, 47, the rotary locking cylinder hemispherical dimples, 48, straight pin, 49 times lock keyways;
5, anti-drill pad, 51, hemispherical projections, 52, pit;
6, circle wheel, 61, endoporus is protruding, 62, circle wheel primary lock key groove, 63, the big lock keyway of circle wheel, 64, arc groove;
7, rotary locking cylinder end socket, 71, pit, 72, go up grinding undercut, 73, grinding undercut down;
8, casing cover, 81, following grinding undercut, 82, straight pin, 83, go up grinding undercut, 84, straight pin;
9, key, 91, mark, 92, raising, 93, cannelure, 94, transverse groove, 95, locating slot, 96, lower convexity.
The specific embodiment
Do further explain of the present invention below in conjunction with accompanying drawing and specific embodiment.Circular lock core mainly adopts copper material, and its casing cover 8 usefulness steel materials are processed and made through Technology for Heating Processing, and its endoporus has two grinding undercuts 83,81, matches with the convexity 92,96 of two symmetries on the key 9, and key 9 can be inserted.Shell 2 is fixing with being connected with straight pin 82,84 of casing cover 8; Shell 2 has the screw 26 of two symmetries at tail end, is used for the connection with lock body.
In shell bullet groove 28, press pellet shot from a slingshot 23 and interior pressing spring 22 in being respectively charged into, fixing with cap liner 21, and press pellet shot from a slingshot 23 removable in shell bullet groove 28 in making; In shell is locked keyway 24 and following lock keyway 27, in being equipped with, each two place presses pellet shot from a slingshot 23, keep the active force of locking key 3 is in equilibrium state.
Two cylindrical locking keys 3 have eight locking key escapes; Position of locking key escape 31 and following locking key escape 32 is the dislocation design on it; Each locking key escape 31,32 respectively with circle wheel outer on circle wheel primary lock key groove 62 match, the circle wheel primary lock key groove 62 on two locking keys 3 and each circle wheel and circle are taken turns big lock keyway 63 and are had only only corresponding.
Rotary locking cylinder 4 is provided with 43,49 and eight of two lock keyways circle wheel grooves 44 of symmetry, and an anti-drill pad 5, eight 6 and rotary locking cylinder end sockets 7 of circle wheel are housed in its eight the circle wheel grooves 44.Steel circle wheel shape anti-drill pad 5, one sides are provided with pit 52, and key can insert, and opposite side is provided with hemispherical projections 51, matches with rotary locking cylinder tail end hemispherical dimples 47, and anti-drill pad 5 is rotatable in rotary locking cylinder 4, guarantees anti-drilling effect.In eight circle wheels of rotary locking cylinder groove 44 a circle wheel 6 is housed respectively, but and circle wheel 6 independent rotation in rotary locking cylinder circle wheel groove 44; Each circle wheel 6 endoporus has a convexity 61; There are circle wheel primary lock key groove 62, the circle big lock keyway 63 of wheel and arc groove 64 in circle wheel outer; And the degree of depth of arc groove 64 and circle wheel primary lock key groove 62 is all less than the round degree of depth of taking turns big lock keyway 63; The large and small lock keyway degree of depth 63,62 of circle wheel matches with locking key 3, and its circle wheel primary lock key groove 62 is corresponding with locking key escape 31,32.Two locking keys 3 place shell lock keyway 24,27 and rotary locking cylinder lock keyway 43,49, and its shell 2 fixedly rotary locking cylinder 4 can not rotate, and stir key 9 this moment and can only drive 6 idle running of circle wheel; Two locking keys 3 place rotary locking cylinder (tail end connects the plectrum 1 of unblanking) lock keyway 43,49 and circle wheel lock keyway 62,63, and locking key 3 is connected as a single entity both, can rotate simultaneously to drive plectrum 1 and unblank.Rotary locking cylinder end socket 7 is the circle wheel shape, and its endoporus is provided with pit 71 and two grinding undercuts 72,73 that match with two convexities of key 92,96, and two convexities of key 92,96 are rotatable at rotary locking cylinder end socket pit 71.Rotary locking cylinder 4 is made up of top 41 and bottom 42; In circle wheel groove 44 is arranged; Anti-drill pad 5, circle wheel 6 and rotary locking cylinder end socket 7 are packed in the rotary locking cylinder circle wheel groove 44; During combination that rotary locking cylinder end socket 7 is fixing with straight pin 45,48 respectively with rotary locking cylinder top 41 and bottom 42, with the fixing tail end of rotary locking cylinder top 41, bottom 42 (fixedly during the rotary locking cylinder tail end in the lump fixedly plectrum 1) of straight pin 46, rotary locking cylinder top 41 and bottom 42 are integrated simultaneously.
Cylindrical key 9 has the convexity 92,96 of two symmetries, inserts two grinding undercuts of rotary locking cylinder end socket and can stir rotary locking cylinder 4 rotations at 72,73 o'clock; A pit-mark 91 is arranged, be used to hold the degree of depth that key 9 inserts lock core keyhole; There is one group of groove to match with circle wheel endoporus protruding 61, the transverse groove 94 that one of which bar cannelure 93 and distance do not wait, every transverse groove 94 tail ends have a longitudinal register groove 95.When key 9 groove 93 insertion rotations longitudinally; Its eight circle wheel endoporus protruding 61; Eight transverse groove 94 hollows in correspondence slide into the groove tail respectively; Its transverse groove 94 is stirred circle wheel endoporus convexity 61 when being rotated further key 9 again, forwards eight circle wheels 6 simultaneously to the position that makes two locking keys 3 can place circle wheel lock keyway 62,63.The distance that the distance decision circle wheel endoporus protruding 61 of transverse groove 94 moves, eight transverse grooves 94 of eight protruding 61 corresponding keys 9 of circle wheel endoporus, its groove position and length have some kinds of permutation and combination, can make some kinds of keys 9.
When using key 9; Each circle wheel endoporus protruding 61 is arranged in a straight line in key 9 holes; Rotary locking cylinder 4 is in locking states (like the arrangement of circle wheel endoporus in key 9 holes protruding 61 not point-blank; Can the keyhole limit be inserted on key 9 limits and be rotated counterclockwise several circles, the cannelure 93 on the key 9 can push circle wheel endoporus protruding 61 on the straight line).Key 9 inserts lock core and is inserted into key pit-mark 91 places; Protruding 92, the 96 entering rotary locking cylinder end sockets 7 of key this moment have the pit 71 of revolution space, and then with key 9 dextrorotation three-sixth turns, instant two locking keys 3 place 43,49 and eight circle wheels of rotary locking cylinder lock keyway lock keyways 62,63 of two correspondences; Rotary locking cylinder 4 and eight circle wheels 6 are in rotation status simultaneously; Again key 9 was inserted pit-mark 91 places, circle wheel endoporus protruding 61 gets into key positioner groove 95, and it can not laterally be moved in groove; Key protruding 92,96 inserts in the rotary locking cylinder end socket grinding undercut 72,73 simultaneously; Screw key 9 is stirred rotary locking cylinder 4 and is rotated, and the unlatching that turns clockwise is rotated counterclockwise locking.When withdrawing from key 9; Earlier key 9 is pulled out to pit-mark 91 places, this moment, circle wheel endoporus protruding 61 got into transverse groove 94 from key positioner groove 95, counterclockwise key 9 was revolved three-sixth turn then; Make key transverse groove 94 return original position to protruding 61 groups of circle wheel endoporus, can key 9 be withdrawed from.