CN101705760B

CN101705760B - String-breaking percussion idle locking end leaving billiard independent

Info

Publication number: CN101705760B
Application number: CN 200910169566
Authority: CN
Inventors: 殷翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-09
Filing date: 2009-09-09
Publication date: 2013-01-02
Anticipated expiration: 2029-09-09
Also published as: CN101705760A

Abstract

The invention provides a string-breaking percussion idle locking end leaving a billiard independent. The technical scheme is as follows: a front lock cylinder, a middle lock cylinder and a rear lock cylinder are arranged in a shell; one side of the billiard of the front lock cylinder is arranged in the nick of a striker and the nick of the billiard corresponds to the corresponding surface of the striker; a weight spring is arranged in front of the striker and the thinner section at the back of the striker is provided with a light spring and extends out of part of a small notch; the thinner section is provided with a nut; the striker stands still between a front spring and a rear spring in the presence of the rear spring force; the striker is not contacted with the billiard; a gap exists between the striker and the billiard after the striker compresses the front spring but before the striker compresses the rear spring, and is determined according to a middle lock cylinder mechanism and a rear lock cylinder mechanism. The middle lock cylinder is provided with a groove and a spring plate which rotate by being matched with a clamp plate at the side, stop or are fixed by a clamp column. An inclined plane for compressing the striker and a through hole are arranged on the front of the middle lock cylinder. The rear lock cylinder is not contacted with the striker at the moment when the striker is blocked by the billiard. The rear lock cylinder is provided with a spring plate or a pin for reversely fastening the striker or a pin which is provided with a nick and is simultaneously used for fixing the rear lock cylinder. One end of the spring plate or the pin is arranged in a groove matched with the striker and the other end of the pin is provided with a spring. A shell step is matched with the pin in a trench of the rear lock cylinder. The billiard is substantially independent, thus effectively preventing exploring to find correct corresponding position.

Description

Allow the pellet percussion idle tapered end of independently leaving bowstring

Technical field

The invention belongs to mechanical lock, provide to allow the pellet percussion idle tapered end of independently leaving bowstring.

Background technology

Pellet in the existing machinery tapered end and corresponding mechanism are under the effect of external force or lasting contact arranged all the time, therefore can directly sound out the correct corresponding position of pellet or indirectly obtain corresponding mechanism from dynamic response, so major part can not prevent from souning out DIP (i.e. exploration is stirred pellet and found corresponding position) and reach technical openings such as basically can not preventing probability DIP (namely stir fast pellet, probability makes the pellet contraposition).

Summary of the invention

The present invention utilizes principle of inertia to make corresponding mechanism only have contacting of moment with pellet under the effect of external force, and allow pellet basically be in separate state, thereby effectively prevent above technical opening, and idle running when opening without spoon.

Technical solution of the present invention is concise and to the point: lock core before, during and after having in the shell, front lock core marble one side is in the striker breach, the pellet breach is corresponding with the striker corresponding surface, back-moving spring is arranged for the spring of having an effect before the striker, rear portion thinner section cover and from than the small-rabbet extension, end has cap, striker is fixed between the spring of having an effect, the back-moving spring by back-moving spring power, striker does not contact with pellet, and the striker compression is had an effect spring eventually and back-moving spring begins to also have the interval with pellet, and the interval shows middle rear lock core mechanism and decides.Middle lock core is fluted to be cooperated rotation, stop or being fixed by card column with the side card with shell fragment, and there is inclined-plane and the through hole of compression striker in the front.Rear lock core is stopped that by pellet moment does not contact with it at striker, rear lock core has the shell fragment of left-hand thread striker or pin or the fixing pin jaggy of rear lock core simultaneously, their ends with groove that striker cooperates in, the pin other end has spring, the housing step cooperates with pin in the rear lock core groove.Pellet is basically independent, prevents from souning out correct corresponding position.

Before not inserting the twisting of correct key forward during lock core, middle lock core inclined-plane force striker along lock core shaft to move inward compression have an effect spring during to the maximum value of restriction pellet and striker also have the interval, when moving to through hole, striker had an effect spring force along lock core shaft to outside mobile compression reseting spring, separate with the spring of having an effect afterwards, utilize inertia force to continue in the compression rear spring, the pellet that is misplaced is blocked in before the rear lock core, after be subjected to bounce and back-moving spring power momentary reset, in the not free corresponding position of finding pellet breach and striker correct of souning out of striker and the moment of pellet contact, and do not contact with pellet at striker before, also can not find correct corresponding position, the relative rear lock core idle running of front lock core in the process.The relative rear lock core idle running of the middle lock core of striker drive activity when oppositely twisting, striker along lock core shaft to outside movement a little or mobile after through the another side on the inclined-plane of the middle lock core fixed by card column, striker and pellet and rear lock core also have the interval in the process, the relative rear lock core idle running of front lock core.

The main distinction of several embodiment: embodiment one uses movable middle lock core, fluted and the shell fragment in middle lock core side buckle the card cooperation stop bit that cooperates rotation and a side to grow with handing over than short card, there are unidirectional inclined-plane and through hole in the front, lock pin is arranged on the rear lock core, lock pin one end inclined-plane is in the groove that moves for striker, one end has dolioform spring, and groove can be divided into allows the part of striker buffering, the trough end wall of stop bit, the part that resets, and jagged and rear lock core groove cooperates with housing stop bit step on the lock pin.When unblanking striker with front lock core rotate run into drive behind the inclined-plane in lock core contact rear position-arresting with shell fragment to longer card place on the middle lock core, the time compression spring of having an effect discharges during to through hole striker through the inclined-plane, resetted after stopping by the dislocation pellet or move through contraposition pellet breach bump rear lock core lock pin after by the lock pin left-hand thread, during lock pin left-hand thread striker, breach just aligns with the stop bit step, striker continue to rotate and to be stopped by recess end wall that rear drive rear lock core rotates simultaneously and unblank, rear counter-rotating key, striker moves to reseting groove and partly is subjected to the rear locking that resets of rear back-moving spring power, and the striker rear portion contact with the other end on unidirectional inclined-plane in through hole that lock core rotates simultaneously in the drive during without the spoon counter-rotating.

Embodiment two and one difference are that movable middle lock core is changed to fixed middle lock core, middle lock core is fixed on the housing by card column and is not rotated, middle lock core has compound mitre, and operating principle was basic identical with enforcement one after striker moved to the compound mitre positive bevel during forward rotation.Striker left-hand thread compound mitre reverse side when anti-twisted, and reset after outwards moving through compound mitre from the low spot lofty perch along lock core shaft, striker and pellet maintain certain intervals in the process.Because of striker counter-rotating run into reverse slope along lock core shaft to outside movement after pellet can not contact with striker, so the space before of pellet and striker is apart from being strengthened, embodiment one full lock is lengthened out relatively, rear lock core latch-locking among the embodiment one is changed into shell fragment, a shell fragment left-hand thread striker, do not cooperate stop bit with the housing step, the full lock position dimension adjusts accordingly.

The middle lock core of embodiment three is fixed, in the lock core compound mitre changed the shell fragment inclined-plane into, lock pin effect on a rear lock core left-hand thread striker, identical with embodiment two operating principles during the forward twisting, oppositely during twisting striker from the reverse side step that lock core extends through out-of-date quilt on shell fragment inclined-plane along lock core shaft to outwards fixing, after running into the inclined-plane not can along the inclined-plane along lock core shaft to outside movement or only mobile a little, after stir shell fragment and reset through later, pellet and striker maintain certain intervals in the process, can dwindle pellet and striker space before distance, can shorten full lock length when lock core is fixed among the embodiment two relatively.The rear lock core lock pin of embodiment three does not have breach, a left-hand thread striker.Full lock position dimension etc. adjusts accordingly.

Description of drawings

Describe technical solution of the present invention in detail below in conjunction with drawings and Examples:

Fig. 1, the 2nd, two kinds of different disposing way locking position masters of front lock core marble look partial sectional view (in embodiment one, the blind hole of the striker front end shown in Fig. 1,2 is omitted)

Fig. 3 is Fig. 1,2 rear elevation

Fig. 4 is movable middle lock core locking position front view

Fig. 5 is that rear lock core locking position master looks partial sectional view

Fig. 6 is the vertical view cutaway drawing in conjunction with Fig. 1,3,4,5 full lock locking position

Fig. 7 is that sectional view is looked on the right side when compressing in conjunction with the full lock striker behind Fig. 1,3,4,5

Fig. 8 is in conjunction with Fig. 1,3,4,5 rear vertical view cutaway drawings when hiding row's pellet full locks and unblanking

Fig. 9 looks sectional view in conjunction with Fig. 1,3,4, right side when 5 rear full locks are unblanked

Figure 10 is the movable middle lock core front view of Fig. 4 unlock position

Figure 11 is that the rear lock core master of the state after Fig. 5 unblanks looks partial sectional view

Figure 12, the 13rd, movable middle lock core schematic perspective view

Figure 14 is above first embodiment operating principle schematic diagram

Figure 15 shares lock core rear elevation before Fig. 1,2 second embodiment

Figure 16 is second the fixed middle lock core locking of embodiment position front view

Figure 17 is second fixed middle lock core schematic perspective view of embodiment

Figure 18 is that second embodiment rear lock core locking position master looks partial sectional view

Figure 19 looks cross-sectional schematic in conjunction with Fig. 1,15,16,18 the right side, second embodiment full lock locking position

Figure 20 is second embodiment operating principle schematic diagram

Figure 21,22 is the 3rd the fixed middle lock core locking position front view of embodiment and rear elevation

Figure 23 is the 3rd the fixed middle lock core schematic perspective view of embodiment

Figure 24 is that the 3rd embodiment rear lock core locking position master looks partial sectional view

Figure 25 looks cross-sectional schematic in conjunction with Fig. 1,15,21,22,24 the right side, the 3rd embodiment full lock locking position

Figure 26 is the 3rd embodiment operating principle schematic diagram

Figure 27 is pellet schematic perspective view of the present invention

Figure 28 is striker annular breach end wall chamfering schematic diagram of the present invention

Figure 29 is housing arc step chamfering schematic diagram of the present invention

Figure 30 is that corresponding diagram 1 of the present invention, Key structure schematic diagram Figure 31,32,33 of 2 are respectively that Fig. 8,19,25 striker list are put figure

The specific embodiment

Fig. 1 to 14,27,28,29,30, among first embodiment shown in 31, have front 2 in the housing 1, in 3, rear lock core 4, lock core 2 sides are to keyhole 2-0 along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core 2 afterbodys, larger in the striker slot, notch is less, Special-shaped marble 5 one ends in the bullet groove have marble spring 6, one end is in keyhole 2-0, in the annular breach 7-1 of the laemodipodiform striker 7 of Special-shaped marble 5 one sides in striker slot, pellet arcuate indentation 5-1 is corresponding with the corresponding surface of striker 7, pellet 5 has the interval with striker 7 front and back, rear interval does not contact with pellet 5 when moving inward maximum compression and have an effect spring 9 along lock core shaft at the striker 7 that limits and gets final product, space before does not contact and gets final product, pellet 5 does not contact with striker 7, be in striker 7 parts in the striker slot, before the spring 9 of having an effect, the part of spring 9 had an effect stretches in the blind hole of striker 7 front ends, the striker 7 that striker 7 front end faces equal to limit to the spacing distance of striker slot end is along lock core shaft to the maximum value that moves inward, the thin part cover in rear portion has back-moving spring 8, back-moving spring 8, quiet connection or back-moving spring 8 and striker slot end quiet connection between the tactile end mutually between the end that spring 9 and striker slot end touch mutually of having an effect, the static connection between the end that spring 9 and striker 7 one ends touch mutually of having an effect, back-moving spring 8 mild compression, spring 9 full extension of having an effect, striker 7 is subjected to back-moving spring 8 power to be fixed on back-moving spring 8, have an effect between the spring 9, spring 9 power of having an effect definitely add making a concerted effort of rear lock core lock pin spring 15 greater than back-moving spring 8 power, the thin part in striker 7 rear portions extends to outside the striker slot, rear side has annular breach 7-2, striker 7 front portions, the part that postmedian is the thickest contacts with the striker cell wall with the thin part in striker rear portion, other parts and striker cell wall are gapped, be striker 7 when mobile gapped with cell wall with the crossing part of pellet 5 and the thinnest part, striker 7 is with chamfering 7-4 with corresponding surface outermost that pellet 5 intersects when mobile, front lock core 2 rear side have annular groove 2-1 to buckle with 10 friendships of housing card to cooperate rotation.Movable middle lock core 3 sides have annular groove 3-1 and stop bit shell fragment 11 to cooperate than the card 13 that short card 12 friendships are buckled and a side is long with housing, there are the unidirectional inclined-plane 3-2 of passive compression striker 7 and the through hole 3-3 that moves for striker in the front, unidirectional inclined-plane 3-2 one side in through hole 3-3, striker 7 rear portions, striker rear portion, the terminal 7-3 of striker cooperate with unidirectional inclined-plane 3-2.Rear lock core 4 does not contact with striker 7 when striker 7 is stopped by pellet 5 along lock core shaft to outside movement, rear lock core 4 has the lock pin 14 that cooperates the terminal 7-3 of left-hand thread striker and stop bit with striker 7 rear side annular breach 7-2, lock pin 14 is in the lock pin hole slot, higher in the lock pin hole slot, along leaving lower notch near the one side of rear lock core front end is parallel in the groove, lock pin 14 a lower part and end arc inclined-plane 14-1 extend in the groove that moves for striker 7 from the lock pin notch, bottom portion of groove is to the spacing distance of lock pin 14 length greater than the terminal 7-3 of striker, groove can be divided into lock pin inclined-plane 14-1 one side have allow striker buffering part 4-1 and allow the recess end wall 4-2 of striker stop bit, one side has the part 4-3 that allows striker reset, dashpot part 4-1, namely remove after part that lock pin 14 takies and near the small part lock pin 14 1 sides and to be equal to or less than rotational line along the distance of rotational line from lock pin 14 1 sides to recess end wall 4-2 in striker 7 axle center and to be mirrored to half length on the terminal 7-3 of striker, reseting groove part 4-3, namely the opposite side along the rotational line in striker 7 axle center from lock pin 14 is to the distance of another end wall of the groove length greater than terminal this string of 7-3 of striker, lock pin 14 other ends have dolioform spring 15, lock pin 14 1 sides and rear lock core 4 rear portions have arc notch 14-2 and arcuate furrow 4-4 to cooperate with housing rear portion arc stop bit step 1-1, and there is chamfering at step 1-1 two ends.

The clutch principle of first embodiment: spring 9 full extension of having an effect during locking before the striker, back-moving spring 8 mild compression, striker 7 is fixed between the spring 9 of having an effect, the back-moving spring spring 8 by back-moving spring 8 power, pellet arcuate indentation 5-1 and the dislocation of striker 7 corresponding surfaces, between pellet 5 and the striker 7 interval is arranged, pellet 5 does not contact with striker 7, and striker 7 rear portions are in middle lock core through hole 3-3 or along any place of rotational line.The corresponding mechanism of the relative rear lock core 4 of the mechanism of middle lock core 3 is in any point along rotational line.Lock pin spring 15 on the rear lock core 4 stretches substantially, lock pin 14 is subjected to spring 15 power full extension, lock pin breach 14-2 and housing stop bit step 1-1 dislocation, and housing stop bit step 1-1 one end contacts with rear lock core rear portion groove 4-4 one end end wall, one end is stopped by lock pin 14, rear lock core 4 two-way fixing.

When insertion key 0 is unblanked, pellet arcuate indentation 5-1 and the in advance contraposition of striker 7 corresponding surfaces, lock core 2 before the twisting, lock core 3 rotated during striker 7 ran into and drives behind the middle lock core inclined-plane 3-2 low spot, after middle lock core shell fragment 11 turns to the longer card of housing 13 places and contacts stop bit with it, the terminal 7-3 of striker when therefrom lock core inclined-plane 3-2 low spot moves lofty perch striker 7 along lock core shaft to moving inward the spring 9 of having an effect before the compression, discharged the spring 9 of having an effect when rotating inclined-plane 3-2 end to through hole 3-3, promoting striker 7 breaks away from have an effect spring 9 or the spring 9 of having an effect after along lock core shaft to outside movement during compression reseting spring 8 and separates with the striker slot end, together with striker 7 along lock core shaft to outside movement, hold inertia force along lock core shaft to outside mobile compression reseting spring 8 and through the corresponding arcuate indentation 5-1 of pellet, lock pin inclined-plane 14-1 in the terminal 7-3 process of striker on the lock core through hole 3-3 bump rear lock core 4, lock pin 14 stressed radially outward movements along lock core are compressed lock pin spring 15, after the terminal 7-3 of striker slips over lock pin inclined-plane 14-1,7-2 is corresponding with lock pin inclined-plane 14-1 for striker rear side annular breach, lock pin 14 reset movement certain distance left-hand thread strikers 7, this moment lock pin breach 14-2 and in advance contraposition of housing stop bit step 1-1 makes striker 7 be subjected to recess end wall 4-2 to stop that drive rear lock core 4 rotates simultaneously to unblank thereby continue twisting key 0.

The complete rear reverse twisting key 0 of unblanking, striker 7 backward rotation, rear lock core 4 is subjected to rotations that reset simultaneously of back lock spring force, and lock pin breach 14-2 moves along housing arc stop bit step 1-1 simultaneously, lock core 3 backward rotation in striker 7 drives, after the terminal 7-3 of striker breaks away from lock pin 14, lock pin 14 resets fully, lock pin breach 14-2 and arc step 1-1 mistake from, step 1-1 one end contacts with rear lock core groove 4-4 one end end wall, one end stopped by lock pin 14, and this moment, rear lock core 4 was two-way fixing.Striker 7 moves to and can pull out spoon 0 after reseting groove part 4-3 is resetted by rear back-moving spring 8 power simultaneously.

When inserting non-original key or instrument forward and reversing, striker 7 through in lock core inclined-plane 3-2 compression have an effect to discharge behind the spring 9 and promote striker 7 and break away from the spring 9 of having an effect during compression reseting spring 8 after along lock core shaft to outside movement, hold inertia force misplaced after along lock core shaft to outside mobile compression reseting spring 8 pellet 5 be blocked in rear lock core 4 contact surfaces before, resetted by bounce and back-moving spring 8 power, dally in the process.Lock core 3 dallied simultaneously during the rear portion of striker 7 drove when oppositely twisting.

Fig. 1,2,15 to 20,27,28,30, among second embodiment shown in 32, have front 2 in the housing 1, in 3, rear lock core 4, lock core 2 sides are to keyhole 2-0 along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core 2 afterbodys, larger in the striker slot, notch is less, Special-shaped marble 5 one ends in the bullet groove have marble spring 6, one end is in keyhole 2-0, in the annular breach 7-1 of the laemodipodiform striker 7 of Special-shaped marble 5 one sides in striker slot, pellet arcuate indentation 5-1 is corresponding with the corresponding surface of striker 7, pellet 5 has the interval with striker 7 front and back, rear interval does not contact with pellet 5 when moving inward maximum compression and have an effect spring 9 along lock core shaft at the striker 7 that limits and gets final product, space before does not contact with pellet 5 during compound mitre 3-2 reverse side peak on the lock core 3 in along lock core shaft to outside mobile left-hand thread at the striker 7 that limits and gets final product, pellet 5 does not contact with striker 7, be in the spring 9 of having an effect before striker 7 parts in the striker slot, thinner part 702 covers in rear portion have back-moving spring 8, back-moving spring 8, quiet connection between the end that spring 9 and striker slot end touch mutually of having an effect, back-moving spring 8 mild compression, spring 9 full extension of having an effect, striker 7 is subjected to back-moving spring 8 power to be fixed on back-moving spring 8, have an effect between the spring 9, spring 9 power of having an effect definitely add making a concerted effort of rear lock core shell fragment 140 greater than back-moving spring 8 power, the thinner part 702 in rear portion extends to outside the striker slot, thinner part end has the larger striker circle of radius cap 703, striker 7 front portions, the part that postmedian is the thickest contacts with the striker cell wall with the thinner part 702 in striker rear portion, other parts and striker cell wall are gapped, be striker 7 when mobile gapped with cell wall with the crossing part of pellet 5 and the thinnest part, striker 7 is with chamfering 7-4 with corresponding surface outermost that pellet 5 intersects when mobile, front lock core 2 rear side have annular groove 2-1 to buckle with 10 friendships of housing card to cooperate rotation.Fixed middle lock core 3 is fixed on the housing 1 by the housing card column 120 of side, there are the compound mitre 302 of passive compression striker and the through hole 3-3 that moves for striker in the front, the end correspondence of compound mitre 3-2 is one side before an end of rear lock core shell fragment 140, the rear portion of striker 7 is in through hole 3-3, the thinner part 702 in the rear portion of striker 7 does not contact with any part of compound mitre 302 when any state, and the periphery of striker circle cap 703 both ends of the surface cooperates with compound mitre 302.Rear lock core 4 does not contact with striker 7 when striker 7 is stopped by pellet 5 along lock core shaft to outside movement, rear lock core 4 has the shell fragment 140 that cooperates the terminal circle of left-hand thread striker cap 703 with the thinner part 702 in striker rear portion, shell fragment 140 thicker being partially submerged into bottom the shell fragment hole slot, thinner major part is along extending in parallel a part in the groove that moves for striker 7 near the one side of rear lock core 4 front ends in the shell fragment hole slot, only have small part to contact with striker 7, bottom portion of groove is to the spacing distance of shell fragment 140 length greater than striker end 703, groove can be divided into shell fragment 140 1 sides have allow striker buffering part 4-1 and allow the recess end wall 4-2 of striker stop bit, one side has the part 4-3 that allows striker reset, dashpot part 4-1, namely remove after part that shell fragment 140 takies and near the small part shell fragment 140 1 sides the distance of rotational line from shell fragment 140 1 sides to recess end wall 4-2 along striker 7 axle center when striker 7 is stopped by recess end wall 4-2 and shell fragment 140 keeps left-hand threads to get final product, reseting groove part 4-3, namely the opposite side along the rotational line in striker 7 axle center from shell fragment 140 is mirrored to length on the striker end 703 to the distance of another end wall of groove greater than rotational line, and rear lock core 4 rear portions have arcuate furrow 4-4 to cooperate with housing rear portion arc stop bit step 1-1.

The clutch principle of second embodiment, spring 9 full extension of having an effect during locking before the striker, thereafter back-moving spring 8 mild compression, striker 7 is fixed between the spring 9 of having an effect, the back-moving spring 8 by back-moving spring 8 power, pellet arcuate indentation 5-1 and the dislocation of striker 7 corresponding surfaces, between pellet 5 and the striker 7 interval is arranged, pellet 5 does not contact with striker 7, and striker 7 rear portions are in middle lock core through hole 3-3 or along any place of rotational line.Shell fragment 140 on the rear lock core 4 is static, fixes after back lock spring force makes rear lock core groove 4-4 one end end wall and housing arc step 1-1 one end in contact.

When insertion key 0 is unblanked, pellet arcuate indentation 5-1 and the in advance contraposition of striker 7 corresponding surfaces, lock core 2 before the twisting, when striker 7 is positive to fixed middle lock core compound mitre 302, striker 7 compressed the spring 9 of having an effect along lock core shaft to moving inward when the terminal circle of striker cap 703 moved lofty perch from positive bevel 302 low spots, discharged the spring 9 of having an effect when rotating the inclined-plane end to through hole 3-3, promote striker 7 and break away from the spring 9 of having an effect during compression reseting spring 8 after along lock core shaft to outside movement, hold inertia force along lock core shaft to outside mobile compression reseting spring 8 and through the corresponding arcuate indentation 5-1 of pellet, lock core through hole 3-3 bump rear lock core shell fragment 140 in striker circle cap 703 processes, the stressed swing of shell fragment 140 1 ends, after striker circle cap 703 slips over shell fragment 140, the thinner part 702 in striker rear portion is corresponding with shell fragment 140, shell fragment 140 resets and swings left-hand thread striker 7, makes striker 7 stopped by recess end wall 4-2 to drive rear lock core 4 to rotate simultaneously to unblank thereby continue twisting key 0.

The complete rear reverse twisting key 0 of unblanking, striker 7 backward rotation, rear lock core 4 is subjected to the rotation that resets simultaneously of back lock spring force, rear lock core groove 4-4 one end end wall and arc step 1-1 one end in contact make rear lock core 4 stop bits, after moving to reseting groove part 4-3 and shell fragment 140 separates, striker distal end cap 703 is subjected to rear back-moving spring 8 power along lock core shaft to moving inward left-hand thread compound mitre 302 reverse side, this moment, striker 7 corresponding surfaces moved the arcuate indentation 5-1 of pellet 5, the existing certain intervals in front and back, striker 7 and rear lock core 4 existing certain intervals can be transferred to key 0 locking.Or continuing twisting, striker 7 is dialled spoon 0 after resetted fully by back-moving spring 8 power after through compound mitres 302 reverse side again.

When inserting the twisting of non-original key or instrument forward, striker 7 through compound mitres 302 positive bevels compression have an effect spring 9 discharge promote strikers 7 misplaced along lock core shaft to outside movement pellet 5 be blocked in rear lock core 4 contact surfaces before, resetted by bounce and back-moving spring 8 power after being stopped by pellet 5, dally in the process.When oppositely striker circle cap 703 is through the reverse slope of compound mitres 302 during twisting along lock core shaft to outside mobile left-hand thread inclined-plane 302, pellet 5 still has certain intervals with striker 7 in the process, striker 7 has the interval with rear lock core 4, through resetted by back-moving spring 8 power behind compound mitre 302 reverse slopes, dally in the process.

Fig. 1,2,15,21 to 28,30, among the 3rd embodiment shown in 33, have front 2 in the housing 1, in 3, rear lock core 4, lock core 2 sides are to keyhole 2-0 along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core 2 afterbodys, larger in the striker slot, notch is less, Special-shaped marble 5 one ends in the bullet groove have marble spring 6, one end is in keyhole 2-0, in the annular breach 7-1 of the laemodipodiform striker 7 of Special-shaped marble 5 one sides in striker slot, pellet arcuate indentation 5-1 is corresponding with the corresponding surface of striker 7, pellet 5 has the interval with striker 7 front and back, rear interval does not contact with pellet 5 when moving inward maximum compression and have an effect spring 9 along lock core shaft at the striker 7 that limits and gets final product, space before does not contact can or slightly be increased, pellet 5 does not contact with striker 7, be in the spring 9 of having an effect before striker 7 parts in the striker slot, thinner part 702 covers in rear portion have back-moving spring 8, back-moving spring 8, quiet connection between the end that spring 9 and striker slot end touch mutually of having an effect, back-moving spring 8 mild compression, spring 9 full extension of having an effect, striker 7 is subjected to back-moving spring 8 power to be fixed on back-moving spring 8, have an effect between the spring 9, spring 9 power of having an effect definitely add making a concerted effort of rear lock core lock pin spring 15 greater than back-moving spring 8 power, the thinner part 702 in rear portion extends to outside the striker slot, thinner part 702 ends have the larger striker circle of radius cap 703, striker 7 front portions, the part that postmedian is the thickest contacts with the striker cell wall with the thinner part 702 in striker rear portion, other parts and striker cell wall are gapped, be striker 7 when mobile gapped with cell wall with the crossing part of pellet 5 and the thinnest part, striker 7 is with chamfering 7-4 with corresponding surface outermost that pellet 5 intersects when mobile, front lock core 2 rear side have annular groove 2-1 to buckle with 10 friendships of housing card to cooperate rotation.Fixed middle lock core is fixed on the housing 1 by the housing card column 120 of side, there are the shell fragment inclined-plane 3002 of passive compression striker and the through hole 3-3 that moves for striker in the front, shell fragment inclined-plane 3002 stops the step 3-4 that the middle lock core 3 of striker circle cap 703 along lock core shaft to outside movement extends when being useful on striker 7 with front lock core 2 counter-rotating on one side, outside the groove of the oblique angle correspondence of step 3-4 one end when rear lock core 4 reset mode, namely corresponding before the front end face of rear lock core 4, the one end correspondence on shell fragment inclined-plane 3002 is one side before the lock pin inclined-plane of rear lock core 4 14-1, the striker rear portion is in through hole 3-3, periphery and the shell fragment inclined-plane 3002 of striker circle cap 703 both ends of the surface, step 3-4 cooperates, and the thinner part 702 in the rear portion of striker 7 does not contact with any part of shell fragment inclined-plane 3002 with step 3-4 when any state.Rear lock core 4 does not contact with striker 7 when striker 7 is stopped by pellet 5 along lock core shaft to outside movement, rear lock core 4 has the lock pin 14 that cooperates the terminal circle of left-hand thread striker cap 703 with the thinner rear portion 702 of striker, lock pin 14 is in the lock pin hole slot, higher in the lock pin hole slot, along leaving lower notch near the one side of rear lock core front end is parallel in the groove, lock pin 14 a lower part and end inclined-plane 14-1 extend in the groove that moves for striker 7 from the lock pin notch, bottom portion of groove is to the spacing distance of lock pin 14 length greater than striker end 703, groove can be divided into lock pin inclined-plane 14-1 one side have allow striker buffering part 4-1 and allow the recess end wall 4-2 of striker stop bit, one side has the part 4-3 that allows striker reset, dashpot part 4-1, namely remove after part that lock pin 14 takies and near the small part lock pin 14 1 sides the distance of rotational line from lock pin 14 1 sides to recess end wall 4-2 along striker 7 axle center when striker 7 is stopped by recess end wall 4-2 and lock pin 14 keeps left-hand threads to get final product, reseting groove part 4-3, namely the opposite side along the rotational line in striker 7 axle center from lock pin 14 is mirrored to length on the striker end 703 to the distance of another end wall of groove greater than rotational line, lock pin 14 other ends have dolioform spring 15, and rear lock core 4 rear portions have arcuate furrow 4-4 to cooperate with housing rear portion arc stop bit step 1-1.

The clutch principle of the 3rd enforcement, spring 9 full extension of having an effect during locking before the striker, thereafter back-moving spring 8 mild compression, striker 7 is fixed between the spring 9 of having an effect, the back-moving spring 8 by back-moving spring 8 power, pellet arcuate indentation 5-1 and the dislocation of striker 7 corresponding surfaces, between pellet 5 and the striker 7 interval is arranged, pellet 5 does not contact with striker 7, and striker 7 rear portions are in middle lock core through hole 3-3 or along any place of rotational line.Lock pin spring 15 on the rear lock core 4 stretches substantially, and lock pin 14 is subjected to spring 15 power full extension, fixes after back lock spring force makes rear lock core groove 4-4 one end end wall and housing arc step 1-1 one end in contact.

When insertion key 0 is unblanked, pellet arcuate indentation 5-1 and the in advance contraposition of striker 7 corresponding surfaces, lock core 2 before the twisting, striker 7 is during to fixed middle lock core shell fragment inclined-plane 3002 low spot, striker 7 compressed the spring 9 of having an effect along lock core shaft to moving inward when striker circle cap 703 moved lofty perch from shell fragment inclined-plane 3002 low spots, discharged the spring 9 of having an effect when rotating shell fragment inclined-plane 3002 ends to through hole 3-3, promote striker 7 and break away from the spring 9 of having an effect during compression reseting spring 8 after along lock core shaft to outside movement, hold inertia force along lock core shaft to outside mobile compression reseting spring 8 and through the corresponding arcuate indentation 5-1 of pellet, lock core through hole 3-3 bump rear lock core lock pin inclined-plane 14-1 in the terminal process of striker, lock pin 14 stressed radially outward movements along lock core are compressed lock pin spring 15, after striker circle cap 703 slips over lock pin inclined-plane 14-1, the thinner rear portion 702 of striker is corresponding with lock pin inclined-plane 14-1, lock pin 14 reset movement certain distance left-hand thread strikers 7 make striker 7 stopped by recess end wall 4-2 to drive rear lock core 4 to rotate simultaneously to unblank thereby continue twisting key 0.

The complete rear reverse twisting key 0 of unblanking, striker 7 backward rotation, rear lock core 4 are subjected to the rotation that resets simultaneously of back lock spring force, and rear lock core groove 4-4 one end end wall and rear arc step 1-1 one end in contact make rear lock core 4 stop bits, striker distal end cap 7003 is with after lock pin 14 separates, and lock pin 14 moves and resets.Striker 7 thinner rear portions 702 do not contact with 3002 sides, shell fragment inclined-plane, while striker 7 moves to rear lock core reseting groove part 4-3 and is subjected to rear back-moving spring 8 power along lock core shaft to moving inward left-hand thread shell fragment inclined-plane 3002 planar sections, this moment, striker 7 resetted fully, maintain slight gap with the planar section of shell fragment inclined-plane 3002 reverse side, can transfer to key 0 locking.Or continue twisting, and striker end 703 moves on the step 3-4 that middle lock core 3 extends, and after step 3-4 was fixing along lock core shaft to outside mobile position striker 7, striker 7 was stirred that shell fragment inclined-plane 3002 moves and is dialled spoon 0 through later.

When inserting the twisting of non-original key or instrument forward, striker 7 through the shell fragment inclined-planes 3002 compressions have an effect spring 9 discharge promote strikers 7 misplaced after along lock core shaft to outside movement pellet 5 be blocked in rear lock core 4 contact surfaces before, resetted by bounce and back-moving spring 8 power after being stopped by pellet 5, dally in the process.Striker end 703 moves on the step 3-4 of middle lock core 3 extensions when oppositely twisting, and after step 3-4 was fixing along lock core shaft to outside mobile position striker 7, striker 7 was stirred shell fragment inclined-plane 3002 and moved and process, dallies in the process.

Embodiment one, lock pin 14 on the rear lock core 4 in three, after striker 7 is held inertia force bump lock pin 14, will strengthen the elastic force of the spring 9 of having an effect before the striker if the elastic force of lock pin spring 15 is excessive, if too small, even the speed that lock pin 14 resets can left-hand thread striker 7, can not contact with breach 7-2 bottom or the thinner part 702 of striker 7, the breach 14-2 that is lock pin 14 can not align with housing stop bit step 1-1, align distance with the movement of housing stop bit step 1-1 with regard to easily slippage if too reduce lock pin breach 14-2, therefore the breach 14-2 of the lock pin 14 among the embodiment one is slightly wider than housing stop bit step 1-1, there is not breach on the lock pin 14 among the embodiment three, it is a lock pin effect left-hand thread striker, as mentioned above, at the spring 9 of having an effect, back-moving spring 8, lock pin spring 15 is all adjusted when suitable, the problem that may occur for prevention has several coordination approachs: 1., the groove that cooperates with striker 7 on the intensification rear lock core, striker 7 need to be together with doing corresponding adjustment.2., install rubber cushion additional at the rear lock core bottom portion of groove.3., install rubber cushion additional at the thickest part in striker 7 front portions and pellet 5 corresponding end faces.4., strengthen the elastic force of lock pin spring 15, together with the elastic force of the spring 9 of having an effect.Some can all be implemented or with regard to the elastic force choice for use of several springs.Be equally applicable to embodiment two.

The terminal corresponding surface during with the bump such as lock pin 14, shell fragment 140 of the corresponding surface of embodiment one, two, three striker 7 and pellet 5 and striker 7, durable for improving, can wholely use high rigidity, strength materials or local the covering.

Embodiment one, two, three tapered end are designed with the prevention kicker magnet and attract striker 7 along lock core shaft to the inside too much mobile function that contacts with pellet 5 when being door lock, when being adapted as bicycle lock etc., striker 7 should be made with nonmagnetic substance.Anti-drilling in advance, can install anti-drilling sheet additional at lock core.Can in various uses, adjust manufactured materials.

Embodiment one, two, three full lock after unblanking striker 7 along lock core shaft after the maximum value that outwards moves to restriction, long for shorten lock as far as possible, striker 7 and pellet 5 corresponding parts can be in outside the pellet arcuate indentation 5-1, for preventing from dialling too early spoon 0, a joint corresponding to breach 5-1 of the pellet 5 that striker 7 is anterior and the most front is lengthened out.

This lock is changed applicable to bicycle, motorcycle, automobile, mechanical code lock etc. a little mainly take the door lock accompanying drawing as example, allly relates to this lock core texture theory, distorts, Combination application etc. all should be within protection domain of the present invention.This lock principle summary: two parts on the striker in the lock core and two spring contacts, the elastic force of one of them spring is greater than the elastic force of another spring, the spring-compressed that its elastic force is relatively little, the spring that its elastic force is relatively large stretches, striker is still between two springs by the power of a little spring of its elastic force, be used for stopping that the pellet of striker has the interval with striker this moment, pellet does not contact with striker this moment.Striker and pellet also have the interval when accepting the large spring of one of them elastic force of external force motion compresses to the maximum value of restriction this moment between striker.When accepting the large spring of one of them elastic force of external force motion compresses to the maximum value that limits between striker, the elastic force of the large spring of one of them elastic force this moment can promote striker with after the large spring of one of them elastic force separates or the other end of the large spring of one of them elastic force with after corresponding contact surface separates, striker continues the little spring of one of them elastic force of compression surplus energy in addition after contact with pellet.Striker is subjected to the little spring of one of them elastic force of elastic force motion compresses of a large spring of its elastic force when contacting with pellet, has separated with the large spring of one of them elastic force or the other end of the spring that its elastic force is large separates with corresponding contact surface.Corresponding surface jagged and striker is corresponding on the pellet, and when pellet was static, the breach on the pellet and the corresponding surface of striker did not line up, after pellet is moved by external force, breach on the pellet and the alignment of the corresponding surface of striker, when the corresponding surface of the breach on the pellet and striker alignd, pellet can not stop striker.

Claims

1. allow the pellet percussion idle tapered end of independently leaving bowstring, it is characterized in that, before having in the housing (1) (2), in (3), rear lock core (4), lock core (2) side is to keyhole (2-0) along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core (2) afterbody, larger in the striker slot, notch is less, Special-shaped marble (5) one ends in the bullet groove have marble spring (6), one end is in keyhole (2-0), in the annular breach (7-1) of the laemodipodiform striker (7) of Special-shaped marble (5) one sides in striker slot, pellet arcuate indentation (5-1) is corresponding with the corresponding surface of striker (7), pellet (5) has the interval with striker (7) front and back, rear interval does not contact with pellet (5) when moving inward maximum compression and have an effect spring (9) along lock core shaft at the striker (7) that limits and gets final product, space before does not contact and gets final product, pellet (5) does not contact with striker (7), be in striker (7) part in the striker slot, before the spring (9) of having an effect, the part of spring (9) had an effect stretches in the blind hole of striker (7) front end, the striker (7) that striker (7) front end face equals to limit to the spacing distance of striker slot end is along lock core shaft to the maximum value that moves inward, the thin part cover in rear portion has back-moving spring (8), back-moving spring (8), quiet connection or back-moving spring (8) and striker slot end quiet connection between the tactile end mutually between the end that spring (9) and striker slot end touch mutually of having an effect, the static connection between the end that spring (9) and striker (7) one ends touch mutually of having an effect, back-moving spring (8) mild compression, spring (9) full extension of having an effect, striker (7) is subjected to back-moving spring (8) power to be fixed on back-moving spring (8), have an effect between the spring (9), spring (9) power of having an effect definitely adds making a concerted effort of rear lock core lock pin spring (15) greater than back-moving spring (8) power, the thin part in striker (7) rear portion extends to outside the striker slot, rear side has annular breach (7-2), striker (7) front portion, the part that postmedian is the thickest contacts with the striker cell wall with the thin part in striker rear portion, other parts and striker cell wall are gapped, be striker (7) when mobile gapped with cell wall with the crossing part of pellet (5) and the thinnest part, striker (7) is with chamfering (7-4) with the crossing corresponding surface outermost of pellet (5) when mobile, front lock core (2) rear side has annular groove (2-1) and housing card (10) to hand over to buckle to cooperate rotation, movable middle lock core (3) side has annular groove (3-1) and stop bit shell fragment (11) to cooperate than the card (13) that short card (12) friendship is buckled and a side is long with housing, there are the unidirectional inclined-plane (3-2) of passive compression striker (7) and the through hole (3-3) that moves for striker in the front, the unidirectional inclined-plane (3-2) of striker (7) rear portion in through hole (3-3) on one side, the striker rear portion, striker terminal (7-3) cooperates with unidirectional inclined-plane (3-2), rear lock core (4) is not contacted with striker (7) when stopping by pellet (5) along lock core shaft to outside movement at striker (7), rear lock core (4) has the lock pin (14) that cooperates left-hand thread striker terminal (7-3) and stop bit with striker (7) rear side annular breach (7-2), lock pin (14) is in the lock pin hole slot, higher in the lock pin hole slot, along leaving lower notch near the one side of rear lock core front end is parallel in the groove, the part that lock pin (14) is lower and an end arc inclined-plane (14-1) extend in the groove that moves for striker (7) from the lock pin notch, bottom portion of groove is to the spacing distance of lock pin (14) length greater than striker terminal (7-3), groove can be divided into lock pin inclined-plane (14-1) side have allow striker buffering part (4-1) and allow the recess end wall (4-2) of striker stop bit, one side has the part (4-3) that allows striker reset, lock pin (14) other end has dolioform spring (15), lock pin (14) one sides and rear lock core (4) rear portion have arc notch (14-2) and arcuate furrow (4-4) to cooperate with housing rear portion arc stop bit step (1-1), and there is chamfering at step (1-1) two ends.

2. allow the pellet percussion idle tapered end of independently leaving bowstring, it is characterized in that, before having in the housing (1) (2), in (3), rear lock core (4), lock core (2) side is to keyhole (2-0) along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core (2) afterbody, larger in the striker slot, notch is less, Special-shaped marble (5) one ends in the bullet groove have marble spring (6), one end is in keyhole (2-0), in the annular breach (7-1) of the laemodipodiform striker (7) of Special-shaped marble (5) one sides in striker slot, pellet arcuate indentation (5-1) is corresponding with the corresponding surface of striker (7), pellet (5) has the interval with striker (7) front and back, rear interval does not contact with pellet (5) when moving inward maximum compression and have an effect spring (9) along lock core shaft at the striker (7) that limits and gets final product, space before does not contact with pellet (5) during compound mitre (3-2) reverse side peak on the lock core (3) in along lock core shaft to outside mobile left-hand thread at the striker (7) that limits and gets final product, pellet (5) does not contact with striker (7), be in the spring (9) of having an effect before striker (7) part in the striker slot, there is back-moving spring (8) at rear portion thin part (702) cover, back-moving spring (8), quiet connection between the end that spring (9) and striker slot end touch mutually of having an effect, back-moving spring (8) mild compression, spring (9) full extension of having an effect, striker (7) is subjected to back-moving spring (8) power to be fixed on back-moving spring (8), have an effect between the spring (9), spring (9) power of having an effect definitely adds making a concerted effort of rear lock core shell fragment (140) greater than back-moving spring (8) power, rear portion thin part (702) extends to outside the striker slot, thinner part end has the larger striker circle of radius cap (703), striker (7) front portion, the part that postmedian is the thickest contacts with the striker cell wall with striker rear portion thin partly (702), other parts and striker cell wall are gapped, be striker (7) when mobile gapped with cell wall with the crossing part of pellet (5) and the thinnest part, striker (7) is with chamfering (7-4) with the crossing corresponding surface outermost of pellet (5) when mobile, front lock core (2) rear side has annular groove (2-1) and housing card (10) to hand over to buckle to cooperate rotation, fixed middle lock core (3) is fixed on the housing (1) by the housing card column (120) of side, there are the compound mitre (302) of passive compression striker and the through hole (3-3) that moves for striker in the front, one end correspondence of compound mitre (3-2) is one side before an end of rear lock core shell fragment (140), the rear portion of striker (7) is in through hole (3-3), the rear portion of striker (7) thin part (702) does not contact with any part of compound mitre (302) when any state, striker terminal circle cap (703) is peripheral to be cooperated with compound mitre (302), rear lock core (4) is not contacted with striker (7) when stopping by pellet (5) along lock core shaft to outside movement at striker (7), rear lock core (4) has the shell fragment (140) that cooperates left-hand thread striker terminal circle cap (703) with striker rear portion thin partly (702), what shell fragment (140) was thicker is partially submerged into bottom the shell fragment hole slot, thinner major part extends in parallel into interior a part of for the mobile groove of striker (7) along the one side near rear lock core (4) front end in the shell fragment hole slot, only have small part to contact with striker (7), bottom portion of groove is to the spacing distance of shell fragment (140) length greater than striker terminal (703), groove can be divided into shell fragment (140) one sides have allow striker buffering part (4-1) and allow the recess end wall (4-2) of striker stop bit, one side has the part (4-3) that allows striker reset, and rear lock core (4) rear portion has arcuate furrow (4-4) to cooperate with housing rear portion arc stop bit step (1-1).

3. allow the pellet percussion idle tapered end of independently leaving bowstring, it is characterized in that, before having in the housing (1) (2), in (3), rear lock core (4), lock core (2) side is to keyhole (2-0) along lock core shaft to having several Special-shaped marble hole slots in the past, Special-shaped marble hole slot one side and striker blind hole groove intersect, the striker notch is peripheral at front lock core (2) afterbody, larger in the striker slot, notch is less, Special-shaped marble (5) one ends in the bullet groove have marble spring (6), one end is in keyhole (2-0), in the annular breach (7-1) of the laemodipodiform striker (7) of Special-shaped marble (5) one sides in striker slot, pellet arcuate indentation (5-1) is corresponding with the corresponding surface of striker (7), pellet (5) has the interval with striker (7) front and back, rear interval does not contact with pellet (5) when moving inward maximum compression and have an effect spring (9) along lock core shaft at the striker (7) that limits and gets final product, space before does not contact can or slightly be increased, pellet (5) does not contact with striker (7), be in the spring (9) of having an effect before striker (7) part in the striker slot, there is back-moving spring (8) at rear portion thin part (702) cover, back-moving spring (8), quiet connection between the end that spring (9) and striker slot end touch mutually of having an effect, back-moving spring (8) mild compression, spring (9) full extension of having an effect, striker (7) is subjected to back-moving spring (8) power to be fixed on back-moving spring (8), have an effect between the spring (9), spring (9) power of having an effect definitely adds making a concerted effort of rear lock core lock pin spring (15) greater than back-moving spring (8) power, rear portion thin part (702) extends to outside the striker slot, thin part (702) end has the larger striker circle of radius cap (703), striker (7) front portion, the part that postmedian is the thickest contacts with the striker cell wall with striker rear portion thin partly (702), other parts and striker cell wall are gapped, be striker (7) when mobile gapped with cell wall with the crossing part of pellet (5) and the thinnest part, striker (7) is with chamfering (7-4) with the crossing corresponding surface outermost of pellet (5) when mobile, front lock core (2) rear side has annular groove (2-1) and housing card (10) to hand over to buckle to cooperate rotation, fixed middle lock core is fixed on the housing (1) by the housing card column (120) of side, there are the shell fragment inclined-plane (3002) of passive compression striker and the through hole (3-3) that moves for striker in the front, shell fragment inclined-plane (3002) is useful on the step (3-4) that stops when striker (7) reverses with front lock core (2) that the middle lock core (3) of striker circle cap (703) along lock core shaft to outside movement extends on one side, outside the groove of the oblique angle correspondence of step (3-4) end when rear lock core (4) reset mode, namely corresponding before the front end face of rear lock core (4), the one end correspondence on shell fragment inclined-plane (3002) on the lock pin inclined-plane of rear lock core (4) (14-1) before on one side, the striker rear portion is in through hole (3-3), striker terminal circle cap (703) periphery and shell fragment inclined-plane (3002), step (3-4) cooperates, the rear portion of striker (7) thin part (702) does not contact with shell fragment inclined-plane (3002) any part with step (3-4) when any state, rear lock core (4) is not contacted with striker (7) when stopping by pellet (5) along lock core shaft to outside movement at striker (7), rear lock core (4) has the lock pin (14) that cooperates left-hand thread striker terminal circle cap (703) with the thinner rear portion of striker (702), lock pin (14) is in the lock pin hole slot, higher in the lock pin hole slot, along leaving lower notch near the one side of rear lock core front end is parallel in the groove, the part that lock pin (14) is lower and an end inclined-plane (14-1) extend in the groove that moves for striker (7) from the lock pin notch, bottom portion of groove is to the spacing distance of lock pin (14) length greater than striker terminal (703), groove can be divided into lock pin inclined-plane (14-1) side have allow striker buffering part (4-1) and allow the recess end wall (4-2) of striker stop bit, one side has the part (4-3) that allows striker reset, lock pin (14) other end has dolioform spring (15), and rear lock core (4) rear portion has arcuate furrow (4-4) to cooperate with housing rear portion arc stop bit step (1-1).

4. according to claim 1 and 2 or the 3 described pellet percussion idle tapered ends of independently leaving bowstring that allow, it is characterized in that, two parts on the striker in the lock core and two spring contacts, the elastic force of one of them spring is greater than the elastic force of another spring, the spring-compressed that its elastic force is relatively little, the spring that its elastic force is relatively large stretches, striker is still between two springs by the power of a little spring of its elastic force, be used for stopping that the pellet of striker has the interval with striker this moment, pellet does not contact with striker this moment, striker and pellet also have the interval when accepting the large spring of one of them elastic force of external force motion compresses to the maximum value of restriction this moment between striker, when accepting the large spring of one of them elastic force of external force motion compresses to the maximum value that limits between striker, the elastic force of the large spring of one of them elastic force this moment can promote striker with after the large spring of one of them elastic force separates or the other end of the large spring of one of them elastic force with after corresponding contact surface separates, striker continues the little spring of one of them elastic force of compression and also have surplus energy after contacting with pellet, striker is subjected to the little spring of one of them elastic force of elastic force motion compresses of a large spring of its elastic force when contacting with pellet, separated with the large spring of one of them elastic force or the other end of the spring that its elastic force is large separates with corresponding contact surface, corresponding surface jagged and striker is corresponding on the pellet, when pellet is static, breach on the pellet and the corresponding surface of striker do not line up, after pellet is moved by external force, breach on the pellet and the alignment of the corresponding surface of striker, when the corresponding surface of the breach on the pellet and striker alignd, pellet can not stop striker.