CN2634046Y - Freely coding lock core and adjustable key - Google Patents

Abstract

A freely coding lock core and adjustable key is provided. The center shaft part of the lock core is provided with a key hole and a core shaft, wherein the core shaft is sleeved with a stator and a rotor, a lock core marble is arranged in axial direction, the stator and the rotor are connected by an assembly component. The utility model is characterized in that the lock core adopts two kinds of special-shaped marbles, a plurality of special-shaped marbles are nested into a marble column. The freely coding of the lock core can be achieved by changing the relationship of permutation and combination of the marbles. The cipher changeable function of the changeable key can be achieved by adjusting to key coding sheet in the coding device. The lock core of the utility model has large capacity of coding, the key has the function of random encryption, and the secure performance of the lock can be obviously improved. Because the utility model has the character of coding lock, and the key has universality, the art process of lock production can be simplified, and the production cost can be reduced. The utility model can be applied to multiple locks, such as anti-theft door lock, safe lock, automobile lock, etc.

Description

Freely encode lock core and adjustable key

Technical field

The utility model relates to the design and the manufacturing of lockset, particularly a kind of lock cylinder and key.

Background technology

The lock cylinder of extensive use now, lock core marble mostly are radially and are provided with, must be with fixing key operated.The patent No. is the disclosed circumference lock cylinders of 94542859.5 utility model patents, and lock core marble is axial setting, still must be with fixing key operated.

The patent No. provides a kind of free arrangement combined lockset for 98241299.1 utility model patents.It must be with lock core from pulling down with lock device or lock body when adjusting, and the disintegration of lock core and key is also simple inadequately with assembling.

Above-mentioned various cylinder lock still has a common weak point, exactly because of being subjected to the restriction of the key and the lock core marble way of contact, lock core marble is all regularly arranged, and more exposure is arranged in the lock core keyhole, especially the exposure on the pellet shot from a slingshot face of cylinder, the related parameter that has of pellet shot from a slingshot state is easily predicted, thus to lock core anti-dial, how influential pick-proof, anti-drilling performance be.

The utility model content

In view of the background technology of existing cylinder lock, the utility model provides a kind of lock core and adjustable key of freely encoding.

Purpose of design of the present utility model is: provide that a kind of lock core code capacity is big, the easy lock core of freely encode of coding method of adjustment, realize the hidden setting and the irregular alignment relatively of lock core marble, improve the preventing group of lock core, pick-proof, anti-drilling performance.The adjustable key that matches with this lock core that provides simultaneously has versatility and the code function of hideing, and is not afraid of to be replicated, and the user can impose intelligent protection to lock core safety in more satisfactory ground according to this.

The technical solution of the utility model is as follows:

The lock core of freely encoding of the present utility model, the lock core middle shaft part is provided with keyhole and mandrel, stator, rotor are enclosed within on the mandrel, the pellet shot from a slingshot and the spring of axial setting are housed in stator, the rotor, stator, rotor are linked by assembling element, it is characterized in that: the pellet shot from a slingshot that lock core adopted is two kinds of special-shaped pellets shot from a slingshot, and a kind of is the pellet shot from a slingshot cap, is the assembly of cylindrical drum and sheet empennage on the structural form; A kind of is free pellet shot from a slingshot, it on the structural form assembly of cylindrical drum and thin solid cylinder, solid cylinder can penetrate another free pellet shot from a slingshot cylindrical drum or pellet shot from a slingshot cap cylindrical drum just, have on stator, rotor on structural form is that cylindrical hole is a bullet groove with the special-shaped groove that makes up of rising as high as the banks, place in the bullet groove by the nestable pellet shot from a slingshot post that becomes of a pellet shot from a slingshot cap and some free pellets shot from a slingshot respectively, free pellet shot from a slingshot wherein can change position and direction, and the bullet groove end is provided with shutoff element easy for removal and installation.

Described lock core mandrel is a mandrel component, and mandrel component is made up of stem stem and the tube-shaped piston and the spring that are enclosed within above it, and the keyhole end of stem stem is sphere, has the key draw-in groove on the face of cylinder, and tube-shaped piston acts on pellet shot from a slingshot cap empennage and sealing keyhole.

Link with link driving element between described lock core mandrel and the rotor, this link driving element mechanical strength is less than a pellet shot from a slingshot post cross sectional strength, to satisfy its demand as peculiar anti-prying.

The shape of described lock core stator, guaranteeing that itself and rotor have under enough conditions to plane, can radially extend in shape, make it have one section cross section on geometry, to change to some extent, as be square, hexagon etc., the stator middle shaft part has the circular tooth shape boss to stretch into the rotor center axis hole as rotor pivot, stator keyhole section is the cylinder boss shape, a pellet shot from a slingshot cap empennage part is placed in one, with the pellet shot from a slingshot post not within the same radial scope of lock core.

When described pellet shot from a slingshot post is arranged around axis, can arrange not according to same circumference or with unequal angle of circumference between each pellet shot from a slingshot post, have the cylindrical band of parallel long axis corresponding on the pellet shot from a slingshot cap empennage with the flute profile of bullet groove.

Described lock core rotor is provided with rotor endcap, is provided with hole or groove that the installing link driving element is used on rotor endcap central portion or rotor cylinder surface, and the link driving element of rotor and lock body mechanism can be located on the rotor endcap, also can be located on the rotor cylinder surface.

Form by key bit and the shank of the key with the adjustable key that the described lock core of freely encoding cooperates, as Fig. 8,9,10, shown in 11, key bit is encoder and the combined mechanism of braking the core awl, the encoder main body is the ladder cylinder thimble 21 at the bottom of the end band, thimble one end can stretch into the tubular keyhole of lock core, the thimble outer wall has chip tank 211, double wedge 212 is arranged in the groove, the thimble outer wall also has the cannelure 213 that follows with the thimble face of cylinder, latch 214 is arranged in the cannelure, chip 22 places within the chip tank 211, chip bayonet socket 221 is stuck on the interior double wedge 212 of groove, be with big envelope 23 on the thimble 21, big envelope has otch 231, the incision length width is corresponding with chip tank 211, big envelope nozzle end stretches into the cannelure 213 on the thimble outer wall, big envelope otch 231 may be stuck on the interior latch 214 of groove, braking core awl 24 places in the encoder thimble, core is bored an end the lobe 241 that can stretch into lock core stem stem key just, core taper shank portion is with spring 242, it is fixing that the core taper shank passes thimble and big envelope tube bottom medium pore and the shank of the key 25, encoder thimble tank arrangement position on the key bit, the sectional dimension specification, chip end surface shape and dimensions all must be corresponding with lock core keyhole and pellet shot from a slingshot cap empennage end face, on the chip between the adjacent bayonet socket between distance and chip two end distances and its nearest bayonet socket apart from with its corresponding pellet shot from a slingshot post in free pellet shot from a slingshot cylinder barrel segment length corresponding.

On the described encoder body shell drum outer wall chip position cue mark 216 is arranged, the main body thimble inserts keyhole end inwall and is provided with angle orientation lobe 215.

Bayonet socket 221 in the chip tank on the described encoder main body thimble on double wedge 212, the key chip is trapezoidal.

Described encoder main body thimble big envelope tube tube bottom is provided with braking core coning angle locating hole, and the shank of the key 25 has hemispherical protruding seat 251 to hold to go into this locating hole.

The more detailed structure of the utility model is as follows:

One. the architectural feature of lock core:,

The basic boom of lock core is: the lock core middle shaft part is established keyhole and mandrel, is with axially folded mutually stator and rotor on the mandrel, has bullet groove on stator, the rotor accordingly, and each is to being equipped with the pellet shot from a slingshot post of being made up of some pellets shot from a slingshot in the bullet groove.Rotor, stator link with assembling element.

1. stator.Stator is the ladder hollow circular cylinder, outwards have some the bullet groove parallel at the center hole wall with the stator major axis along radial direction, the structural form of these bullet groove is the special-shaped groove of cylindrical hole and parallel slot combination, between groove and the groove generally not arrange at the equal circumference angle with circumference, also can adopt groove depth difference (promptly the bottom land of all grooves is not at same circumference) as required or with the arrangement mode setting at equal circumference angle, take bottom land not at same circumference be to reduce key with the purpose of equal circumference angle arrangement mode not and change the hidden degree that the angle insertion machine can and improve pellet shot from a slingshot.The stator middle shaft part has the circular tooth shape boss to stretch into the rotor center axis hole as rotor pivot, and the keyhole section of stator can be the cylinder boss shape, and the sagittal plane of stator is guaranteeing to have under enough situations to plane with rotor, can be square, multiple geometry such as hexagon.

2. rotor.Rotor is the ladder hollow circular cylinder, have bullet groove in the position corresponding with the stator bullet groove, bullet groove also for cylindrical hole with rise as high as the banks that (portion that rises as high as the banks is narrow and shallow for the special-shaped groove of forming, be used to stretch into the instrument of getting pellet shot from a slingshot), bullet groove cylindrical hole part end has internal thread, and sealing of hole screw for convenience detach is housed.Also be provided with the keyway that links usefulness with mandrel at the rotor center bore end, be used for the internal thread and the screw of mandrel location, Rotor terminal is provided with rotor endcap.On rotor endcap central portion or rotor cylinder surface, be provided with the hole (groove) used of assembling link driving element, can be located on the rotor endcap, also can be located on the rotor cylinder surface with the link driving element of lock body mechanism (shift fork).

3. mandrel.Mandrel is a composition element, fixedly form by stem stem and the tube-shaped piston and the spring assembly that are enclosed within above it, stem stem (can be that an end is thinner for dumbbell shaped solid cylinder just like during fabrication, behind cover upper piston and the spring, overlap the fixing formation of the preceding paragraph cylindrical drum again), stem stem one end is sphere, the face of cylinder has the key draw-in groove, the other end has a keyway on the face of cylinder, the connecting key that is connected usefulness with rotor is housed in the groove, the mechanical strength of this key has the special insurance effect less than the intensity of a pellet shot from a slingshot post cross section.

4. pellet shot from a slingshot.This lock core marble is a core component of realizing the free encoding function of lock core.Lock core adopts two kinds of special-shaped pellets shot from a slingshot, and a kind of be the pellet shot from a slingshot cap, structurally be cylindrical drum and profiled metal sheet assembly, and profiled metal sheet one side is grown the limit cylindrical flange (be clearly to narrate, below this sheet metal is called pellet shot from a slingshot cap empennage); A kind of is free pellet shot from a slingshot, structurally is the assembly of cylindrical drum and solid cylinder.External diameter equates with external diameter in the free pellet shot from a slingshot cylindrical drum in free pellet shot from a slingshot cylindrical drum internal diameter and the solid cylinder equal diameters, pellet shot from a slingshot cap cylindrical drum.Place each bullet groove of lock core respectively by the nestable pellet shot from a slingshot post that forms of free pellet shot from a slingshot of a pellet shot from a slingshot cap different with some grain length degree (relating to the length that free pellet shot from a slingshot length means free pellet shot from a slingshot cylindrical drum part to descend to the mortal world), pellet shot from a slingshot column length unanimity in each bullet groove, they are partial to stator side under the effect of spring, pellet shot from a slingshot cap empennage is subjected to the tube-shaped piston effect on the mandrel component simultaneously.Between same pellet shot from a slingshot post pellet shot from a slingshot, close and fasten, nestable mutually when cylindrical drum is relative with solid cylinder, form the cross section that can misplace when cylindrical drum is relative with cylindrical drum.So, every pellet shot from a slingshot post all can have the cross section that can misplace that the pellet shot from a slingshot post is divided into two sections.Be clearly narration, the design person is called upper pellet shot from a slingshot section with a section of over spring, and one section of the short round spring is called the next pellet shot from a slingshot section.Change the position and the direction of free pellet shot from a slingshot, the length that can make upper and lower pellet shot from a slingshot section is to change.

Two. the Key structure feature:

Adjustable key is made up of key bit and the shank of the key, and feature is that key bit is mechanism's formula element, and key bit is made of encoder and braking core awl

1. encoder.Encoder is made up of main body thimble, key chip and thimble big envelope.The main body thimble is the ladder cylindrical drum at the bottom of the end band, and the thimble outer wall has some chip tanks vertically, the double wedge that has fixing chip to use in the groove, and it is trapezoidal that double wedge is.Simultaneously, the cannelure and the latch that also have fixing thimble big envelope to use on the thimble outer wall, the main body thimble can insert on the keyhole section inwall lobe, is carved with the chip position cue mark on the outer wall.Key chip is flat chi shape bonding jumper, and bonding jumper one side has several fixedly bayonet sockets of usefulness on the long limit, and it is trapezoidal that bayonet socket is.The thimble big envelope is the thin walled cylinder body at a band end, has axial cut-outs on the sleeve, and the width of axial cut-outs is consistent with chip tank width on the main body thimble, and thimble big envelope bottom has a core coning angle locating hole.Encoder main body thimble diameter, barrel thickness, chip tank position and width, chip width and thickness must be corresponding with stem stem on the lock core, tube-shaped piston, pellet shot from a slingshot cap empennage end face.

2. the braking core is bored.Braking core awl is the ladder cylinder, and a thicker end is a head, and a thinner end is a handle, and head end has lobe, and this lobe is corresponding with draw-in groove on the lock core stem stem.Braking core awl places within the encoder main body thimble of key, and a spiral compression spring overlaps in core taper shank portion, and the centre bore that the shank end passes encoder main body thimble and big envelope bottom combines fixing with the shank of the key.One hemispherical protruding seat is arranged on the shank of the key, can hold in the angle locating hole of thimble big envelope bottom.

Three. basic functional principle of the present utility model:

At ordinary times, each is interspersed flexible to the free pellet shot from a slingshot in the bullet groove on the lock core, and lock core is lock-out state.When key inserts lock core, each chip withstands lock core marble cap empennage on the key, these chips stretch into the degree of depth of lock core respectively with short complementary with the upper pellet shot from a slingshot segment length of its corresponding pellet shot from a slingshot post, the misplaced cross section that makes each pellet shot from a slingshot post and stator, rotor are consistent to plane, lock core is opening, the key handle, the lock core stem stem drives rotor rotation under the braking core awl effect of key.

Because the qualification of draw-in groove relation on the lobe of key bit and the lock core stem stem, could extract smoothly when making key only be screwed into original insertion angle, can not make lock core that the false phenomenon of locking takes place.

Adjust the position and the direction of free pellet shot from a slingshot in each bullet groove of lock core, the bullet groove of conversion pellet shot from a slingshot post all can change the lock core coding.

Adjust the position of key chip in the chip groove, the tank of conversion chip all can change the coding of key, and the corresponding adjustment of lock core and key can modulate lock core and key code that difference is complementary.At ordinary times in use as desire with the key accidental enciphering, need only transfer on the key one or several chips separately, promptly realized the code function of hideing of key.

The utility model compared with prior art has the following advantages:

1. the lock core code capacity is big, adjusts simple.Establish 8 pairs of bullet groove by lock core, establish 3 free pellets shot from a slingshot in every pair of bullet groove and calculate, 200,000,000 groups of above codings can appear in lock core.Because this lock core can be located at the link driving element of lock core and lock body mechanism (shift fork) on the rotor cylinder surface, so lock core length is benefited from the lock device thickness limits less, so can increase considerably flexible distance of pellet shot from a slingshot post and marble amount, anti-group performance and the increase code capacity that improves lock core all is of practical significance.Because the method for adjustment of lock core coding is to open the terminal pellet shot from a slingshot of adjusting of bullet groove, so will lock core when adjusting from pulling down with lock device, especially it is longer to work as lock core, lock core rotor stretches into lock case, when rotor one end is exposed to the lock case surface, only need open rotor endcap when it is adjusted, pull down bullet groove sealing screw, with a particular tool (a finer wire hook), take out pellet shot from a slingshot, adjustment process is easy.

Lock core have stronger anti-ly dial, pick-proof, anti-drilling performance.Because lock core marble is hidden setting, and is provided with the link driving element that pellet shot from a slingshot is imposed supplementary protection between lock core column and rotor.When unblanking, chip on the key bit only contacts with the pellet shot from a slingshot cap empennage of lock core, the pellet shot from a slingshot method to set up of this " hiding the head but show the tail ", in fact be equivalent in lock core, insert in advance the half key, make the process of unblanking become the system sign indicating number process of key itself to the operation of lock core, thereby the security performance of lockset is significantly improved by key.

3. because key has the code function of hideing, adapt to the needs of special occasions, special installation, special personnel, thus to the additional measures of lock core.

4. the utility model needn't be done different designs and processing for the encoding variability of lock core and key during fabrication, can finish manufacturing in batches as producing " standard component ", can effectively reduce production costs.

Description of drawings

Fig. 1 is the utility model example structure principle schematic;

Fig. 2 is the embodiment lock core structure schematic diagram of freely encoding;

Fig. 3, Fig. 4 are that Fig. 2 upper lock core stator C is to reaching D to view;

Fig. 5 is the A of Fig. 2---A line sectional drawing;

Fig. 6 is the utility model embodiment pellet shot from a slingshot cap schematic diagram;

Fig. 7 is the free billiards structure schematic diagram of the utility model;

Fig. 8 is the adjustable Key structure schematic diagram of the utility model;

Fig. 9 is that the E of Fig. 8 is to view;

Figure 10 is that the D of Fig. 8 is to view;

Figure 11 is the B of Fig. 8---B line sectional drawing;

Figure 12 is that lock core and lock body concern one of schematic diagram among the embodiment;

Figure 13 is that lock core and lock body concern two of schematic diagram among the embodiment.

The specific embodiment

The lock core of freely encoding: referring to Fig. 2---Fig. 7, the lock core of freely encoding is provided with stator 11, has bullet groove 111 on the stator, and the stator middle shaft part has circular tooth shape boss 112 to stretch into the rotor center axis hole; Rotor 12, bullet groove 121 is arranged on the rotor, the part 122 of rising as high as the banks that bullet groove is narrow and shallow is to get the pellet shot from a slingshot instrument and be provided with for stretching into, at the bullet groove end easy-to-dismount sealing screw 123 is arranged, rotor center axis hole end has keyway 124, end also is equipped with mandrel set screw 125, and Rotor terminal has rotor endcap 126; The lock core mandrel is a mandrel component, mandrel component is combined by stem stem 131, tube-shaped piston 132, spring 133, has key 134 on the stem stem, and stem stem keyhole end is sphere, the stem stem afterbody is equipped with and links key 135, has assembling element to link between the stator of lock core, rotor.

Referring to Fig. 6, Fig. 7, lock core adopts two kinds of special-shaped pellets shot from a slingshot, and a kind of is pellet shot from a slingshot cap 141, and empennage 142 is arranged on the pellet shot from a slingshot cap; A kind of is free pellet shot from a slingshot 143.

Adjustable key: referring to Fig. 8---Figure 11, key bit is made up of encoder and braking core awl.Encoder is provided with main body thimble 21, and the thimble outer wall has chip tank 211, and double wedge 212 is arranged in the groove, also has the cannelure 213 that is parallel to the face of cylinder on the thimble, and latch 214 is arranged in the groove.The main body thimble inserts on the keyhole section inwall lobe 215, and outer wall has chip position mark 216.Key chip 22 places in the main body thimble chip tank, has bayonet socket 221 to block double wedge 212 in the tank on the chip.At main body thimble overcoat big envelope 23 is arranged, otch 231 is arranged on the big envelope, braking core coning angle locating hole 232 is arranged at the bottom of the big envelope tube tube, the nozzle end of big envelope tube stretches into the cannelure 213 of main body thimble, big envelope otch 231 blocks latch 214, the main effect of big envelope is fixing chip, and chip is not deviate from tank.Braking core awl 24 places in the main body thimble, on the core awl lobe 241 is arranged, and is with spring 242 on the core taper shank.Rising as high as the banks on the core awl face of cylinder 243 is fitting recess, and braking core conehead is crossed the lobe on the main body thimble inwall when being used to make key.The shank of the key 25 first spherical protruding seats 251 hold to go into the locating hole 232 of thimble big envelope tube tube bottom, make braking core awl that one fixable orientation angle be arranged, lobe on this angle braking core awl can insert lobe on the keyhole section inwall on same axis with encoder main body thimble, can insert the key on the lock core stem stem simultaneously.

For satisfying the coupling requirement of key and lock core, key chip has related parameter corresponding definite with lock core marble.For making the lock core marble syntagmatic that maximum code capacity can be arranged, the key chip two ends are all effectively utilized, can make the chip two ends do not have the bayonet socket segment length (be the chip end and with its nearest bayonet socket mid point between distance) two free pellet shot from a slingshot length in the pellet shot from a slingshot post corresponding with it are corresponding, the distance on the chip between adjacent two bayonet sockets is the 1/n (n is an integer) of all the other every free pellet shot from a slingshot length.

Based on above prerequisite, the related parameter that has of key chip and lock core marble corresponding relation is determined to calculate with following formula.If key chip length is a, pellet shot from a slingshot column length (referring to free pellet shot from a slingshot length sum in the same pellet shot from a slingshot post) is b, key main body thimble inserts the keyhole section and can not insert keyhole section interface distance between the double wedge mid point to the chip tank is c, it is d that lock core pellet shot from a slingshot post lower end when not inserting key places the length in the rotor bullet groove

Then:

a＝b+2(c-d)；

If c=d, then a=b.

On this basis, key chip also will be added length generally speaking, when this add length and chip one end do not have the bayonet socket segment length equate, simultaneously again between the adjacent bayonet socket mid point of chip during apart from integral multiple, then this chip and pairing pellet shot from a slingshot post thereof can reach than the unitary Item capacity.So generally speaking, chip lengths=pellet shot from a slingshot column length+add length.

Referring to Fig. 1---Figure 11, present embodiment establish 8 pellet shot from a slingshot posts on lock core, establish three free pellets shot from a slingshot in every pellet shot from a slingshot post, establish 8 chips on the key.Fig. 1 inserts lock core for key, and lock core is opening.

Owing to there is chip position cue mark indication chip can stretch into the degree of depth of lock core on the adjustable key code device main body thimble, in use, visual key bit end face, with the lobe on the encoder main body thimble inwall on the key bit is starting point, digital in the direction of the clock sheet end, determine the chip position successively, watch the chip position cue mark on the key main body thimble face of cylinder again, confirm that every chip can insert the depth phase of lock core.As a position is that 3, No. two positions are 3, and third place is that 4, No. four positions are 2, No. five positions are that 1, No. six position is that 3, No. seven positions are that 5, No. eight positions are 2, then lock core is opened and to be encoded to 33421352, and this coding of memory record reproduces lock core with basic key when can be used for the accidental enciphering of key and key loss and encodes.

The relevant size in present embodiment critical component and position is as follows:

Lock core stator keyhole section boss diameter: 20mm;

Lock core rotor diameter: 40mm;

Lock core total length: 80mm;

The shortest free pellet shot from a slingshot length of lock core (being free pellet shot from a slingshot cylinder barrel segment length): 3mm;

Free pellet shot from a slingshot solid cylinder segment length: 2mm;

Lock core marble cap cylindrical drum length: 5mm;

The thickness of the empennage of lock core marble cap: 0.5mm;

Key chip well width and chip thickness; 0.5mm;

Distance between the adjacent bayonet socket mid point of key chip: 3mm.

Referring to Figure 12, be that the utility model lock core is when being used for general security door built-in lock, lock core and lock body link driving element are located at rotor cylinder surface upper lock core and lock body mechanism continuous action relation schematic diagram, lantern ring type shift fork 31 on lock core rotor 12 faces of cylinder turns certain angle in rotor rotation during one week, stir dead bolt 32 actions, its principle is similar to the dead bolt continuous action relation to general drawer-lock lock core mandrel.

Referring to Figure 13, be that the utility model is used for simply having strong market potential when locking lock core rotor and lock pin interlock schematic diagram.Be with thumb wheel 33 braking lock pins 34 on lock core rotor 12 faces of cylinder.

When the utility model lock core and lock body mechanism link driving element are located on the rotor endcap, identical with general lock core commonly used in the continuous action relation of lock body and the prior art.

Because the utility model structure and operating principle thereof are fairly simple, are not giving unnecessary details about embodiment.

Claims (10)

1. lock core of freely encoding, the lock core middle shaft part is provided with keyhole and mandrel, stator, rotor are enclosed within on the mandrel, the pellet shot from a slingshot and the spring of axial setting are housed in stator, the rotor, stator, rotor are linked by assembling element, it is characterized in that: the pellet shot from a slingshot that lock core adopted is two kinds of special-shaped pellets shot from a slingshot, and a kind of is the pellet shot from a slingshot cap, is the assembly of cylindrical drum and sheet empennage on the structural form; A kind of is free pellet shot from a slingshot, it on the structural form assembly of cylindrical drum and thin solid cylinder, solid cylinder can penetrate another free pellet shot from a slingshot cylindrical drum or pellet shot from a slingshot cap cylindrical drum just, have on stator, rotor on structural form is that cylindrical hole is a bullet groove with the special-shaped groove that makes up of rising as high as the banks, place in the bullet groove by the nestable pellet shot from a slingshot post that becomes of a pellet shot from a slingshot cap and some free pellets shot from a slingshot respectively, free pellet shot from a slingshot wherein can change position and direction, and the bullet groove end is provided with shutoff element easy for removal and installation.

2. the lock core of freely encoding according to claim 1, it is characterized in that: described lock core mandrel is a mandrel component, mandrel component is made up of stem stem and the tube-shaped piston and the spring that are enclosed within above it, the keyhole end of stem stem is sphere, have the key draw-in groove on the face of cylinder, tube-shaped piston acts on pellet shot from a slingshot cap empennage and sealing keyhole.

3. the lock core of freely encoding according to claim 1 is characterized in that: link with link driving element between lock core mandrel and the rotor, this link driving element mechanical strength is less than a pellet shot from a slingshot post cross sectional strength, to satisfy its demand as peculiar anti-prying.

4. the lock core of freely encoding according to claim 1, it is characterized in that: the shape of described lock core stator, guaranteeing that itself and rotor have under enough conditions to plane, can radially extend in shape, make it have one section cross section on geometry, to change to some extent, as be square, hexagon etc., the stator middle shaft part has the circular tooth shape boss to stretch into the rotor center axis hole as rotor pivot, stator keyhole section is the cylinder boss shape, a pellet shot from a slingshot cap empennage part is placed in one, with the pellet shot from a slingshot post not within the same radial scope of lock core.

5. the lock core of freely encoding according to claim 1, it is characterized in that: when the pellet shot from a slingshot post is arranged around axis, can arrange not according to same circumference or with unequal angle of circumference between each pellet shot from a slingshot post, have the cylindrical band of parallel long axis corresponding on the pellet shot from a slingshot cap empennage with the flute profile of bullet groove.

6. the lock core of freely encoding according to claim 1, it is characterized in that: lock core rotor is provided with rotor endcap, on rotor endcap central portion or rotor cylinder surface, be provided with hole or groove that the installing link driving element is used, the link driving element of rotor and lock body mechanism can be located on the rotor endcap, also can be located on the rotor cylinder surface.

7. the adjustable key that cooperates with the described lock core of freely encoding of claim 1 is made up of key bit and the shank of the key, it is characterized in that: key bit is encoder and the combined mechanism of braking the core awl, the encoder main body is the ladder cylinder thimble (21) at the bottom of the end band, thimble one end can stretch into the tubular keyhole of lock core, the thimble outer wall has chip tank (211), double wedge (212) is arranged in the groove, the thimble outer wall also has the cannelure (213) that follows with the thimble face of cylinder, latch (214) is arranged in the cannelure, chip (22) places within the chip tank (211), chip bayonet socket (221) is stuck on the interior double wedge (212) of groove, be with big envelope (23) on the thimble (21), big envelope has otch (231), the incision length width is corresponding with chip tank (211), big envelope nozzle end stretches into the cannelure (213) on the thimble outer wall, big envelope otch (231) may be stuck on the interior latch (214) of groove, braking core awl (24) places in the encoder thimble, core is bored an end the lobe (241) that can stretch into lock core stem stem key just, core taper shank portion is with spring (242), it is fixing that the core taper shank passes thimble and big envelope tube bottom medium pore and the shank of the key (25), encoder thimble tank arrangement position on the key bit, the sectional dimension specification, chip end surface shape and dimensions all must be corresponding with lock core keyhole and pellet shot from a slingshot cap empennage end face, on the chip between the adjacent bayonet socket between distance and chip two end distances and its nearest bayonet socket apart from with its corresponding pellet shot from a slingshot post in free pellet shot from a slingshot cylinder barrel segment length corresponding.

8. as adjustable key as described in the claim 7, it is characterized in that: chip position cue mark (216) is arranged on the encoder body shell drum outer wall, and the main body thimble inserts keyhole end inwall and is provided with angle orientation lobe (215).

9. as adjustable key as described in the claim 7, it is characterized in that: the bayonet socket (221) in the chip tank on the encoder main body thimble on double wedge (212), the key chip is trapezoidal.

10. as adjustable key as described in the claim 7, it is characterized in that: encoder main body thimble big envelope tube tube bottom is provided with braking core coning angle locating hole, and the shank of the key (25) has hemispherical protruding seat (251) to hold to go into this locating hole.

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