CN2393960Y - Mechanical button coded lock - Google Patents

Abstract

The utility model relates to a mechanical button type coded lock which is composed of a lock shell, a lock bolt which is arranged in the lock shell and is provided with a return spring, a lock bolt rotary disk which is matched with the poking and pushing movement of the lock bolt, an unlocking key, a locking key, a coded switch mechanism, an upper reset plate and a lower reset plate, wherein, the coded switch mechanism is composed of a coded key, a coded switch mechanism and a virtual coded switch mechanism. The coded switch mechanism is composed of an ejection switch, a lower reset switch and an interlock switch, and the virtual coded switch mechanism is composed of an ejection switch, an upper reset switch, and a sound creating switch. The utility model is characterized in that the utility model can be made into various lock tools to use, and the utility model has the characteristics of strong security and safe use.

Description

Mechanical key formula coded lock

The utility model relates to a kind of lockset.

In people's routine work and life, be extensive use of lockset, with prevent article lose or stolen.The existing actual lockset that uses is of a great variety, structure is different, existing electronic puzzle lock, refers to senior lockset such as level lock, the routine work of being widely used in is also arranged and live in common locksets such as simple in structure, low-cost padlock, latch.Senior lock structure complexity, cost an arm and a leg, in routine work, life, seldom use.And the common lockset that is widely used in daily life, the work uses key operated lockset mostly, uses in order to unblanking so people usually carry a lot of keys.The big string key of body band is not only given the sensation of inconvenience but also lose normal work of influence and life easily.

The purpose of this utility model provides a kind of strong security, safe and reliable, and cost is low, is suitable for using in people's routine work and the life, can be made into various different types to satisfy the mechanical key formula coded lock of instructions for use.

Mechanical key formula coded lock by lock housing, be loaded on the dead bolt that has return spring in the lock housing, with dead bolt dial push away cooperate dead bolt rotating disk, unlock key, sealed key, the coding switch mechansim that can make the dead bolt retraction, go up restoring board, restoring board constitutes down, coding switch mechansim is made of coding key, switch mechanism of code and empty code switch mechanism.Switch mechanism of code is by ejection switch, down reset switch, interlocking switch constitute, empty code switch mechanism by ejection switch, go up reset switch, make acoustic(al) switch and constitute.Central hollow shaft is housed in the lock housing, and central hollow shaft supports, is fixed on the lock housing by supporting plate.Unlock key is loaded in the central hollow shaft axocoel, is made of the button of unblanking, the tooth bar with two-sided teeth that the polished rod section is arranged that is connected with the button of unblanking, the propulsion arm, the pushing tow cross bar that is fixed on the pushing tow rod end that are connected with tooth bar integral body and the return spring that is loaded on the pushing tow rod end.Sealed chain, last restoring board, following restoring board are sleeved on the central hollow shaft.The button of sealed key is positioned at lock housing one end the whole annular shoulder that connects, and annular shoulder periphery is evenly equipped with depression bar, and the depression bar end passes strut kong on the restoring board and stretches out with following restoring board pushing tow and cooperate.Sealed key return spring is sleeved on the central hollow shaft by last restoring board backstop, and following restoring board return spring is sleeved on the central hollow shaft by central hollow shaft supporting plate backstop.Two corresponding toothed rack are arranged in the last restoring board axle sleeve, two travelling gears are housed in the central hollow axocoel, two travelling gear outer rims pass on the central hollow axial wall plane the open-work slideway respectively with last restoring board axle sleeve in the engagement of two tooth bars.The unlock key tooth bar is positioned between two travelling gears, tooth bar two sides teeth respectively with two gears engaged.The dead bolt rotating disk has return spring and is loaded on central hollow axle head place, on the dead bolt rotating disk axle sleeve internal face inclined ramp that cooperates with unlock key pushing tow cross bar is arranged, the pushing tow cross bar enters inclined ramp dead bolt rotating disk and rotates around central axis under pushing tow cross bar pushing tow, and dead bolt is under the dead bolt rotating disk drives in the retraction lock housing.The pushing tow cross bar by withdraw from the inclined ramp, dead bolt rotating disk return under the return spring effect, dead bolt stretches out in by lock housing under the return spring effect.Coding key connects key for two controls, and button is positioned at the lock housing inner end the whole key plate that connects, and key plate symmetry centre has the support cutting edge of protruding plate face, and two control buttons are supported on the ejection switch fixed head of lock housing by supporting cutting edge.Button supports the cutting edge both sides the depression bar that is set with return spring, and switch mechanism of code and empty code switch mechanism are with two to control button depression bars one corresponding.The ejection switch of empty code switch mechanism and the ejection switch of switch mechanism of code are fixed on the ejection switch fixed head of lock housing, and the ejection switch of switch mechanism of code is identical with the ejection switch structure of empty code switch mechanism.Ejection switch by the switch cylinder shell of band block tongue chamber, have return spring and the whole block tongue that is connected with the drive block of band inclined-plane groove, be loaded on and have the piston ejector ram, ejector piston of goring push spring to constitute in the switch housing, it is indoor that block tongue is loaded on block tongue, its tongue end stretches in the switch housing chamber.Double control switch depression bar end stretches into the block tongue chamber and cooperates with drive block groove inclined-plane pushing tow.The draw-in groove and the backstop bolt that cooperate with the block tongue block are arranged on the piston ejector ram, ejector piston, and block tongue stretches into the piston ejector ram, ejector piston location in the switch housing of will withdrawing in the draw-in groove.Piston ejector ram, ejector piston backstop bolt cooperates with last restoring board backstop, and last restoring board rises to be pushed in the piston ejector ram, ejector piston retraction switch housing of ejaculation by the backstop bolt.Double control switch depression bar pushing tow block tongue drive block groove inclined-plane, drive block drive and to move the block tongue end behind the block tongue and withdraw from piston ejector ram, ejector piston by the piston ejector ram, ejector piston draw-in groove and penetrate in by switch housing under the goring push spring effect.The last reset switch of the following reset switch of switch mechanism of code and empty code switch mechanism is fixed on the central hollow shaft supporting plate and installs between base plate, base plate is installed is fastened on the central hollow shaft supporting plate by gripper shoe.Upper and lower reset switch by the switch cylinder shell, be positioned at the card cap other end that shell one end integral body is connected with periphery and has teeth and stretch out upper ejector pin that switch housing cooperates with ejection switch piston ejector ram, ejector piston pushing tow, be positioned at switch housing one end and have the card cap tooth that cooperates with card cap side set pushing tow to stretch out the outer end of switch housing to constitute by the lower push rod that is set with return spring on the jogger hole extension bar section on installation base plate and the dead bolt rotating disk, the switch housing chamber is positioned at and is evenly equipped with the tooth group of being made up of upward long tooth that protrudes wall and following long tooth on the card cap one side peripheral wall surfaces, and card cap tooth slideway is arranged between the tooth group.The long tooth tooth of going up of last reset switch is grown up in long tooth tooth is long down, and the upward long tooth tooth length of following reset switch is less than long tooth tooth is long down.The interlocking switch of switch mechanism of code and empty code switch mechanism to make the acoustic(al) switch structure identical, be fixed on the dead bolt rotating disk.Interlocking switch with make acoustic(al) switch by switch housing, be loaded on and have the whole interlocking inserted link that is connected slide block and return spring in the switch housing and constitute, the inclined-plane groove is arranged on the slide block, the groove inclined-plane upper and lower reset switch lower push rod pushing tow interior with stretching into switch housing cooperates.There is forward and backward interlocking inserted link hole two sides, slide block inclined-plane, and the shift interlock inserted link stretches out before the lower push rod pushing tow slide block groove inclined plane slide block, and the interlocking switch interlocking inserted link corresponding with it stretches out the back and insert behind the slide block in the jack.Following reset switch lower push rod is mentioned back interlocking inserted link at return spring effect return, and the interlocking switch interlocking inserted link corresponding with it stretches out the back and insert before the slide block in the jack.It is identical with the reset switch action to make acoustic(al) switch.

For preventing that the lockset keyboard is damaged and guarantees the reliability of lockset work, further improving of mechanical key formula coded lock is that lockset has the keyboard buckle closure of hinge on lock housing, bearing is housed to increase the rotation flexibility of dead bolt rotating disk in the dead bolt rotating disk axle sleeve.

In order to be suitable for using as door lock, the dead bolt rotating disk of mechanical key formula coded lock is equipped with handle and sealed chain locking mechanism, so that use and prevent that door lock is by outdoors by sealed.Locking mechanism is by the sealed draw-in groove that connects on the key, be loaded on the interior clamp that has return spring that cooperates with the draw-in groove block sealed key lock of lock housing, promote the propulsion arm that clamp moves, the travel switch that is installed on the lock housing constitutes, travel switch is by the switch cylinder shell that is fixed on the lock housing, one end stretches into the upper ejector pin that the interior end integral body of switch housing is connected with card cap tooth with whole connection of clamp propulsion arm, being positioned at block that switch housing one end integral body is connected with periphery and has teeth stretches out and the lower push rod that the return spring rod end is equipped with button is housed on the outer bar section of lock housing constitutes, switch housing be positioned on the shell chamber peripheral wall surfaces of lower push rod tooth cap one side by protrude wall by last long tooth and the tooth group formed of long tooth down, card cap tooth slideway is arranged between the tooth group.Last long tooth tooth length is blocked cap tooth and card cap side set pushing tow less than long tooth tooth is long down.

The lockset that the mechanical key formula coded lock that the utility model provides can be made into various different purposes is used for routine work and life, and the lockset cost is low, and strong security is safe and reliable.

Accompanying drawing is an embodiment of the present utility model, and the utility model is not limited only to embodiment, further specifies the utility model below in conjunction with embodiment.

Fig. 1 is a mechanical key formula coded lock outside drawing.

Fig. 2 is a mechanical key formula coded lock structure chart.

Fig. 3 is the A-A sectional drawing of Fig. 1.

Fig. 4 is the partial structurtes figure of C portion of Fig. 3.

Fig. 5 is the partial structurtes figure of D portion of Fig. 3.

Fig. 6 is the L-L sectional drawing of Fig. 2.

Fig. 7 is the H-H sectional drawing of Fig. 2.

As shown in Figure 1, the button (3) that is positioned at keyboard central authorities on lock housing (1) keyboard of mechanical key formula coded lock is a unlock key, and button (2) is sealed key, and the button (5) that is positioned at periphery is a coding key.Every lock had the unlocking cipher of oneself setting when lockset was made, and the lock housing keyboard is by disk cover (4) capping.

To shown in Figure 7, in the mechanical key formula coded lock lock housing central hollow shaft (48) is arranged as Fig. 2, central hollow shaft supports, is fixed on the lock housing by supporting plate (15).Unlock key is loaded in the central hollow axocoel, by the button of unblanking, with the fixedly connected tooth bar with two-sided teeth (6) that the polished rod section is arranged of button, with the whole propulsion arm (42) that is connected of tooth bar, the pushing tow cross bar (17) that is fastened on the pushing tow rod end, by unlock key pushing tow return spring (33) formation of pin (34) backstop location.Sealed button is sleeved on the central hollow shaft, and button stretches into the lock housing inner end the whole annular shoulder that connects, and annular shoulder periphery is evenly equipped with depression bar (10), and sealed key return spring (45) is sleeved on the central hollow shaft.Last restoring board (12), following restoring board (13) are sleeved on the central hollow shaft, and sealed key return spring is by last restoring board axle sleeve backstop.The unlock key depression bar passes strut kong on the restoring board and stretches out with following restoring board pushing tow and cooperate.Following restoring board pushing tow return spring (41) is sleeved on the central hollow shaft by central hollow shaft supporting plate backstop.Corresponding two toothed rack (43) are arranged in the last restoring board axle sleeve, two travelling gears (11), (44) are housed in the central hollow axocoel, two rims of gear pass open-work slideway and the engagement of two tooth bars on the central hollow axial wall plane.The unlock key tooth bar is positioned between two gears, tooth bar two sides teeth respectively with two gears engaged.Dead bolt (20) is bearing on the dead bolt supporting base (38) of lock housing, and dead bolt return spring (37) is sleeved on the dead bolt by supporting base backstop.Dead bolt rotating disk (39) is fixed on the central hollow axle head by the bearing (35) that is loaded in the axle sleeve, dead bolt rotating disk axle sleeve internal face has the inclined ramp (36) that cooperates with unlock key pushing tow cross bar pushing tow, and the pushing tow cross bar passes that the via hole of installing on the base plate (21) enters in the inclined ramp, the dead bolt rotating disk rotates around central hollow shaft under pushing tow cross bar pushing tow.Dead bolt rotating disk return spring (19) one ends are fixed on the lock housing other end and are fixed on the lock rotating disk, and the pushing tow cross bar withdraws from dead bolt rotating disk return under the return spring effect behind the inclined ramp.Be fixed with the reversed column (82) of protruding rim on the dead bolt rotating disk rim, reversed column is dialled a retaining mouthful group retaining with dead bolt and is cooperated.The dead bolt rotating disk rotates under unlock key pushing tow cross bar pushing tow, dead bolt rotating disk reversed column is dialled and pushed away dead bolt retraction, and dead bolt rotating disk return dead bolt return under the return spring effect stretches out in by lock housing.Coding key is two control buttons, and two control buttons are positioned at lock housing one end the whole key plate that connects, and key plate symmetry centre has the support cutting edge (51) of protruding plate face, and button is supported on the ejection switch fixed head (46) of lock housing by supporting cutting edge.The key plate supports the depression bar (50), (54) that are set with return spring (49), (52) that there is symmetry the cutting edge both sides, and depression bar stretches out by ejection switch fixed head strut kong.Stretch out return location retaining (69) is arranged on the bar section of fixed head.The coding switch mechansim of lockset is made of switch mechanism of code and empty code switch mechanism, and switch mechanism of code and empty code switch mechanism are corresponding one by one with the depression bar of two control buttons.Switch mechanism of code is by being fixed on ejection switch on the lock housing ejection switch fixed head, being fixed on the central hollow bracing strut and being fastened on the following reset switch between installation base plate (18) on the central hollow shaft supporting plate and the interlocking switch that is fixed on the dead bolt rotating disk constitutes by gripper shoe (40), and empty code switch mechanism makes the acoustic(al) switch formation by being fixed on ejection switch on the lock housing ejection switch fixed head (46), being fixed on the central hollow shaft supporting plate and last reset switch between base plate is installed, being fixed on the dead bolt rotating disk.The ejection switch of empty code switch mechanism is identical with the ejection switch structure of switch mechanism of code, empty code switch mechanism to make acoustic(al) switch identical with the cipher switch structure.Launch penetrate switch by the switch cylinder shell (74) of band block tongue chamber (70), be loaded on piston ejector ram, ejector piston (55) in the switch housing, be loaded on block tongue (73) formation that the indoor integral body of block tongue is connected with drive block (72) and return spring (71), piston ejector ram, ejector piston has goring push spring (77).The block tongue drive block has the inclined-plane groove, and two control button depression bars stretch into that block tongue is indoor to be cooperated with groove inclined-plane pushing tow.Depression bar pushing tow groove inclined-plane, dead bolt retraction, depression bar is mentioned, and block tongue is return under the return spring effect.Piston ejector ram, ejector piston is positioned at block tongue one side lever end to be had and cooperates with the block tongue block the draw-in groove (75) of the piston ejector ram, ejector piston location of retraction switch housing and the backstop bolt (53) that cooperates with last restoring board backstop, the backstop bolt is positioned at switch housing open-work slideway (76), and last restoring board rises, passes through in the piston ejector ram, ejector piston retraction switch housing of backstop bolt pushing tow ejaculation.Piston ejector ram, ejector piston passes upper and lower restoring board by ejaculation in the switch housing and stretches out.The reset switch of switch mechanism of code and empty code switch mechanism is by switch cylinder shell (57), being positioned at card cap (67) that switch housing one end integral body is connected with periphery and has teeth stretches out the outer end of shell and cooperates close rod end place that the upper ejector pin (68) of backstop bolt (56) is arranged with ejection switch piston ejector ram, ejector piston pushing tow, be positioned at switch housing one end integral body be connected with block card cap tooth (66) the bar section that cap side set pushing tow cooperates on be set with return spring (58) lower push rod (65) constitute, the switch housing chamber is positioned on card cap one side wall surface by the tooth group of being made up of upward long tooth that protrudes wall and following long tooth, the tooth group is uniform along the chamber peripheral wall surfaces, and card cap tooth slideway is arranged between the tooth group.Upward long tooth (80) tooth of last reset switch is grown up long in the tooth of following long tooth (81), and upward long tooth (78) the tooth length of following reset switch is long less than the tooth of following long tooth (79).Interlocking switch, make acoustic(al) switch and be made of switch housing (64), the interlocking inserted link (60) that has slide block (59) and the pushing tow return spring (61) that are loaded in the switch housing, there are preceding jack (62) and back jack (63) in its two sides.Slide block groove inclined-plane with pass the reset switch lower push rod pushing tow that the switch housing jogger hole stretches in the shell and cooperate.Interlocking switch, make acoustic(al) switch with corresponding interlocking switch, make that acoustic(al) switch is vertical to be installed, the interlocking inserted link of corresponding interlocking switch stretches out in the back jack that inserts slide block the interlocking inserted link stretches out switch housing under following reset switch lower push rod pushing tow after, and the interlocking inserted link of corresponding interlocking switch stretches out in the preceding jack that inserts slide block behind the interlocking inserted link return.It is identical with the interlocking switch course of action to make acoustic(al) switch.Present embodiment is a door lock, and in order to prevent door by sealed outdoors, sealed key has locking mechanism.Sealed chain locking mechanism is positioned at draw-in groove (7) on the lock housing internal key tube by sealed button, cooperate the clamp that has return spring (47) (8) with sealed press key locking with the draw-in groove block, the propulsion arm hole of passing on the ejection switch fixed head (9) cooperates the propulsion arm that has the spearhead head (14) that makes the clamp translation with clamp pushing tow recess pushing tow, be sleeved on the push rod by the backstop bolt, the return spring (16) of central hollow shaft supporting plate backstop and the travel switch that is loaded on the lock housing switch base (24) constitute.Travel switch by be fixed on switch cylinder shell (22) on the lock housing switch base, be positioned at that switch housing one end has the whole card cap tooth (23) that connects to stretch out to have on the outer bar section of switch housing a return location retaining (29) with the whole upper ejector pin that is connected of propulsion arm, be positioned at card cap (25) that switch housing one end integral body is connected with periphery and has teeth and stretch out outside the switch housing and be set with return spring (27) on the bar section.The lower push rod (26) that rod end is equipped with button (28) constitutes, the switch housing chamber is positioned at and is evenly equipped with the tooth group of being made up of upward long tooth that protrudes wall and following long tooth on the card cap one side peripheral wall surfaces, card cap tooth slideway is arranged between the tooth group, card cap tooth and card cap side set pushing tow, upward long tooth tooth length is less than long tooth tooth is long down.

For the ease of the use of lockset, dead bolt rotating disk jug (32).Handle is connected and fixed by reducing connection ancient (30) and pin (31) and puts at the dead bolt turntable shaft.During sealed door, push under sealed key, the sealed key depression bar pushing tow restoring board along the central hollow shaft slippage by the upper ejector pin side set pushing tow lower push rod that in switch housing, bounces back of the backstop bolt pushing tow upper ejector pin on the upper and lower reset switch upper ejector pin.When lower push rod card cap tooth skidded off card cap tooth slideway, the lower push rod of following reset switch rotated an angle card cap tooth and enters down in the long tooth, and the lower push rod card cap tooth of last reset switch is grown up in long tooth tooth is long still in last long tooth down because of last long tooth tooth.When the upper and lower reset switch upper ejector pin of restoring board pushing tow is no longer bounced back by central hollow shaft supporting plate backstop instantly, the lower push rod end pushing tow interlocking switch of upper and lower reset switch stretches out the interlocking inserted link with the slide block of making acoustic(al) switch, interlocking switch interlocking inserted link inserts in the back jack of corresponding interlocking switch slide block, makes acoustic(al) switch interlocking inserted link and inserts corresponding making in the back jack of acoustic(al) switch slide block.Discharge behind the sealed key sealed button and following restoring board return under return spring effect separately, propulsion arm is at return spring effect return, under the lower push rod pushing tow under the upper and lower reset switch.Last reset switch lower push rod card cap tooth reenters card cap tooth slideway and makes in the strut kong of reset switch lower push rod end by the dead bolt rotating disk and withdraw from, and last reset switch restores.Following reset switch lower push rod retraction is by withdrawing from the interlocking switch slide block groove groove, and interlocking switch is made acoustic(al) switch and restored at return spring effect return.Following reset switch lower push rod card cap tooth be because the backstop of following long tooth in the switch housing can not be restored its rod end still is in and passes the state that dead bolt rotating disk jogger hole stretches out, and the dead bolt rotating disk can not be rotated and will stretch out the dead bolt locking of lock housing, and door is promptly by sealed.

When opening door, press coding key by unlocking cipher of setting and order, the ejection switch piston ejector ram, ejector piston penetrates reset switch upper ejector pin under the pushing tow, following reset switch repeats the course of action when sealed, and lower push rod rotates an angle under the pushing tow of upper ejector pin makes lower push rod card cap tooth enter card cap tooth slideway.Pushing unlock key drive to go up the reverse displacement of restoring board by travelling gear the block mouth of piston ejector ram, ejector piston pushing tow return by block tongue and piston ejector ram, ejector piston is cooperated the piston ejector ram, ejector piston location, restores.By withdrawing from return, recovery in the dead bolt rotating disk jogger hole, remove block and can freely rotate around central hollow shaft by the dead bolt rotating disk under the effect of return spring for following reset switch lower push rod, and door lock promptly is unlocked.Press coding key not according to unlocking cipher and order, because of the slide block of one of them interlocking switch is in the return state.The interlocking inserted link of corresponding interlocking switch stretches out in the preceding jack that inserts slide block in the back slide block is locked, the lower push rod end of the following reset switch that cooperates with the blocked interlocking switch pushing tow of slide block is because groove inclined-plane backstop lower push rod card cap tooth can not enter the recovery of card cap tooth slideway return by pass-out in the following long tooth, therefore lower push rod still is in by dead bolt rotating disk jogger hole and stretches out state, the dead bolt rotating disk can not freely rotate, and lockset still is in locked state.

Claims (3)

1, a kind of mechanical key formula coded lock, it is characterized in that by lock housing, be loaded on the dead bolt that has return spring in the lock housing, dial to push away with dead bolt and cooperate the dead bolt rotating disk that can make dead bolt retraction, unlock key, sealed key, coding switch mechansim, last restoring board, following restoring board constitutes, coding switch mechansim is by coding key, switch mechanism of code and empty code switch mechanism constitute, switch mechanism of code is by ejection switch, following reset switch, interlocking switch constitutes, void code switch mechanism is by ejection switch, last reset switch, making acoustic(al) switch constitutes, central hollow shaft is housed in the lock housing, central hollow shaft is supported by supporting plate, be fixed on the lock housing, unlock key is loaded in the central hollow axocoel, by the button of unblanking, be connected the tooth bar that has the polished rod section with two-sided teeth with the button of unblanking, with the whole propulsion arm that is connected of tooth bar, the pushing tow cross bar that is fixed on the pushing tow rod end constitutes with the pushing tow return spring that is loaded on the pushing tow rod end, sealed key, on, following restoring board is sleeved on the central hollow shaft, the button of sealed key is positioned at lock housing one end the whole annular shoulder that connects, annular shoulder periphery is evenly equipped with depression bar, the depression bar end passes the restoring board strut kong and stretches out with following restoring board pushing tow and cooperate, sealed key return spring is sleeved on the central hollow shaft by last restoring board backstop, following restoring board return spring is sleeved on the central hollow shaft by central hollow shaft supporting plate backstop, two corresponding toothed rack are arranged in the last restoring board axle sleeve, two travelling gears are housed in the central hollow axocoel, the open-work slideway that two travelling gear wheel rims pass on the central hollow axial wall plane meshes with two tooth bars respectively, the unlock key tooth bar is positioned between two gears, unlock key tooth bar two sides teeth mesh with two travelling gears respectively, the dead bolt rotating disk is fixed on the central hollow axle head, dead bolt rotating disk axle sleeve internal face has the inclined ramp that cooperates with unlock key pushing tow cross bar, the pushing tow cross bar enters inclined ramp, the dead bolt rotating disk rotates around central hollow shaft under pushing tow cross bar pushing tow, coding key is two control buttons, button is positioned at the lock housing inner end the whole key plate that connects, key plate symmetry centre has the support cutting edge of protruding plate face, button is supported on the lock housing ejection switch fixed head by supporting cutting edge, support the cutting edge both sides depression bar that is set with return spring is arranged, switch mechanism of code and empty code switch mechanism are corresponding one by one with two control button depression bars, the ejection switch of switch mechanism of code and empty code switch mechanism is fixed on the lock housing ejection switch fixed head, ejection switch is by the switch cylinder shell of band block tongue chamber, having return spring and integral body is connected with the block tongue of the drive block of being with the inclined-plane groove and is loaded on the piston ejector ram, ejector piston formation that has goring push spring in the switch housing, block tongue is loaded on the indoor tongue end of block tongue and stretches in the switch housing, two control button depression bar ends stretch into that block tongue is indoor slippages with drive block groove sloped roof, piston ejector ram, ejector piston has draw-in groove and backstop bolt, block tongue stretches in the piston ejector ram, ejector piston draw-in groove piston ejector ram, ejector piston in the retraction switch housing is located, piston ejector ram, ejector piston backstop bolt cooperates with last restoring board backstop, last reset switch and following reset switch are fixed on the central hollow shaft supporting plate and reset and install between base plate, base plate is installed to be fastened on the central hollow shaft supporting plate by gripper shoe, on, following reset switch is by the switch cylinder shell, be positioned at the card cap that switch housing one end integral body is connected with periphery and has teeth and stretch out the upper ejector pin that the outer end of switch housing cooperates with ejection switch piston ejector ram, ejector piston pushing tow, being positioned at switch housing one end has the card cap tooth that cooperates with card cap side set pushing tow to stretch out the outer end of switch housing by the lower push rod formation that is set with return spring on base plate and the dead bolt rotating disk jogger hole extension bar section is installed, the switch housing chamber is positioned at and is evenly equipped with the tooth group of being made up of upward long tooth that protrudes wall and following long tooth on the card cap one side peripheral wall surfaces, card cap tooth slideway is arranged between the tooth group, the long tooth tooth of going up of last reset switch is grown up in long tooth tooth is long down, the upward long tooth tooth length of following reset switch is less than long tooth tooth is long down, interlocking switch and make acoustic(al) switch and be installed on the dead bolt rotating disk, interlocking switch and make acoustic(al) switch by switch housing, being loaded on the interlocking inserted link that has slide block and return spring in the shell constitutes, slide block has the inclined-plane groove, the groove inclined-plane with stretch in the switch housing on, following reset switch lower push rod pushing tow cooperates, before the slide block two sides have, interlocking inserted link hole, back, lower push rod pushing tow slide block groove inclined-plane interlocking inserted link stretches out, the interlocking inserted link stretches out the back interlocking switch corresponding with it interlocking inserted link and stretches out and insert behind the slide block in the inserted link hole, and the switch interlocking inserted link of the interlocking switch corresponding with it stretches out before the insertion slide block in the inserted link hole behind the interlocking inserted link return.

2, by the described mechanical key formula of claim 1 coded lock, it is characterized in that having the keyboard buckle closure, in the dead bolt rotating disk axle sleeve bearing is housed.

3, by the described mechanical key formula of claim 1 coded lock, it is characterized in that the dead bolt rotating disk is equipped with handle, sealed key has locking mechanism, locking mechanism is by the draw-in groove on the sealed button, be loaded on the interior clamp that has return spring that cooperates with the draw-in groove block sealed key lock of lock housing, promote propulsion arm and travel switch formation that clamp moves, travel switch is by the switch cylinder shell that is fixed on the lock housing, one end stretches into the upper ejector pin that the interior end integral body of switch housing is connected with card cap tooth with whole connection of clamp propulsion arm, the card cap that the end integral body that is positioned at switch housing is connected with periphery and has teeth stretches out and is set with the lower push rod that the return spring rod end is equipped with button on the outer bar section of lock housing and constitutes, the switch housing chamber be positioned on the lower push rod card cap one side peripheral wall surfaces by protrude wall by last long tooth and the tooth group formed of long tooth down, card cap tooth slideway is arranged between the tooth group, last long tooth tooth length is blocked cap tooth and card cap side set pushing tow less than long tooth tooth is long down.

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