CN205063564U - By oneself dismouting and change tool to lock of key - Google Patents

Abstract

The utility model relates to an user by oneself dismouting and change tool to lock of key belongs to mechanical tool to lock technical field. Characterized in that it is fixed that lock body and guard shield pass through spring bullet pin junction, pushes down the bullet round pin, can be with the guard shield, prevent boring piece, lock core, blade, roll the round pin and take out easy dismounting, the lock core contains a plurality of vallecular cavities that can hold the blade, and the blade can be at the vallecular cavity internal rotation, the blade has the recess of multiple angle to constitute multiple model, thereby the user can change realization lock core password with its position to modify, the equipment of establishing ties of spoon type spare that the key passes through the different models that the screw will comprise multiple angle, the user can loosen the screw to thereby it modifys to realize the key password with the position change of spoon type spare, as long as a blade model and a spoon type spare model position one -to -one, the reerection gets up, and the user has just accomplished the work of modifing the password.

Description

A kind of can Dismountable change the lockset of key

Technical field

The utility model relates to a kind of lockset, and particularly a kind of user can Dismountable change the lockset of key, belongs to mechanical lock technical field of structures.

Background technology

Lockset is a kind of important protective articles protecting human, financial, and material resources safety; it comprises lock, key and annex thereof; at present; on market, lockset is of a great variety; adopt the multiple opening ways such as fingerprint, electronic cipher; in any case and change, adopt mechanical emergency back-up system or the simple mechanical lock that uses to remain the most basic safety precaution means.

At present, mechanical lock always continues to use traditional design structure and manufacture means mostly, key and supporting lockset adopt the formula structure that is fixed as one, one key kit one lock, the matched key structure of opening lockset is also corresponding exclusive architecture form, and this integral type conventional key is once lose the potential safety hazard existing and be replicated; Meanwhile, the loss of key, needs to change whole supporting lockset to ensure the safety of human, financial, and material resources, causes the serious wasting of resources.On the other hand, conventional lock structure design exists easily by the puzzlement of technical opening, and total design assembling is complicated, and needing to utilize special tool to carry out operation by professional can complete, and cannot meet modern society people DIY individual demand.

As can be seen here, conventional lockset equal existing defects in safety, hommization, technical, materials saving etc.

Summary of the invention

The utility model is intended to solve conventional lock lock body blade (pellet), key spoon type cannot self assemble, user can not change key, lockset cannot the technological deficiency such as easy disassembly, and then provides a kind of user can easy disassembly the lockset of quick alternate key voluntarily.This lockset can ensure the safety factor that lockset reaches certain, and anti-technical opening, stops potential safety hazard, improves safety and the practicality of lockset.

For this reason, the utility model have employed following technical scheme:

A kind of can Dismountable change the lockset of key, comprise lock body 01 and key 03 liang of large ingredient, special character is, described lock body 01 inside has the lock core body of interchangeable leaf position, the lateral ends of described lock body 01 is covered with the guard shield 02 removably connected with it, and by described guard shield 02 by lock core body and the shifting block 12 that links with described lock core body is spacing is fixed on lock body inside; Described key 03 has the spoon shaped piece 0303 that can change cochlear position, and position and the quantity of the position of described cochlear part 0303 and quantity and described blade match and carry out corresponding adjustment simultaneously, to realize the object changing key.

Removably connected by spring 14 and bullet pin 13 between described lock body 01 and guard shield 02 and be integrated, described lock body 01 offers the blind hole 0102 for installing bullet pin 13 and spring 14, described guard shield 02 offers the bullet pin through hole 0201 held when bullet pin 13 end is ejected, bullet pin 13 one end holddown spring 14, the other end embeds in bullet pin through hole 0201, guard shield 02 and lock body 01 is locked together.

Described lock body 01 inside be provided with successively be made up of lock core 07 and blade 06 lock core body, link in described lock core body side and be built-in with the spindle 09 of anti-drilling steel ball 08, the shifting block 12 by spindle 09 driven rotary, and to link in described shifting block 12 opposite side and the back shaft 10 that described shifting block is played a supporting role; When key 03 inserts lock core body and reverses, described lock core body drives spindle 09 to rotate, and the shifting block 12 that spindle 09 connects rotates thereupon, realizes unblanking;

Be provided with between described lock core body and described guard shield 02 and vandal-proof anti-drilling sheet 04 is played to lockset;

Described lock core body is by rotating the lock core 07 be installed in lock body 01, and several blades 06 be installed in described lock core 07 form jointly; Described lock core 07 has key hole end and reverses interlock end, and described lock core 07 is provided with several for installing the blade vallecular cavity 0704 of blade 06, is provided with next door 0705 and carries out interval between two adjacent blade vallecular cavities 0704;

Described blade 06 is installed on the rotatable lamella on lock core 07, circumference along described blade is respectively equipped with anti-allocating slot 0603, blade rolling pin groove 0602 and rotary spacing section 0605, each blade is provided with multiple anti-allocating slot 0603, and the anti-allocating slot 0603 on different leaves is positioned at different positions;

Described key 03 comprises thread form section, bar section and handle section and forms, and described thread form section comprises the key bit 0302, spoon shaped piece 0303 and the intermediate bar 0304 that are run through successively by screw 0301; Described bar section comprises the Nut pole 0305 be threaded with screw 0301 and the key bar 0306 being sheathed on described Nut pole 0305 periphery; Described handle section comprises the shank of the key 0307 and is installed on the roller 0308 that can be rotated by external control in described the shank of the key 0307; Wherein said intermediate bar 0304 coordinates with the mating face socket joint of described key bar 0306, described Nut pole 0305 one end is threaded with screw 0301, roller 0308 in the other end and described the shank of the key 0307 end is connected, described key bar 0306 one end coordinates with intermediate bar 0304 socket joint, and the other end is fixed on described the shank of the key 0307 by rubber ring 0310 and backing pin 0311;

Described spoon shaped piece 0303 is provided with several, match with the quantity of the blade 06 in described lock body and position, the spoon shaped piece 0303 of multiple arranged in series on described shank of screw forms key thread form, and the thickness of each spoon of shaped piece 0303 is identical, angle is different and angle is differential is not less than 15 °.

The utility model is a kind of can Dismountable change the lockset of key, its reasonable in design, by the blade of position changeable designed in lock body, and the spoon shaped piece of the position changeable designed on the key, realize the change of lock body key, fixed by bullet pin and spring compression between guard shield and lock body, convenient disassembly, by designing anti-drilling steel ball and anti-drilling sheet in lock body, the theftproof of whole lock body and anti-destructive are improved greatly.

Accompanying drawing explanation

Fig. 1: the utility model is a kind of can Dismountable change the lock structure schematic diagram of key;

The sectional view of Fig. 2: Fig. 1;

Fig. 3: lock body structure schematic diagram;

The sectional view of Fig. 4: Fig. 3;

Fig. 5: shield structure schematic diagram;

The partial sectional view of Fig. 6: Fig. 5;

Fig. 7: Key structure schematic diagram;

Fig. 8: bolt structure schematic diagram;

Fig. 9: key bit structural representation;

Figure 10: spoon shaped piece structural representation;

Figure 11: intermediate bar structural representation;

Figure 12: Nut pole structural representation;

Figure 13: key bar structural representation;

Figure 14: the shank of the key structural representation;

Figure 15: roller structure schematic diagram;

Figure 16: rubber ring structural representation;

Figure 17: backing pin structural representation;

Figure 18: bolt structure schematic diagram;

Figure 19: anti-drilling sheet structural representation;

Figure 20: rolling pin structural representation;

Figure 21: blade construction schematic diagram;

Figure 22: lock core structure schematic diagram;

Figure 23: lock core structure schematic diagram;

The half sectional view of Figure 24: Figure 23;

B-B sectional view in Figure 25: Figure 23;

Figure 26: spindle structural representation;

Figure 27: axle assemble supporting schematic diagram;

Figure 28: block-dialing structure schematic diagram;

Figure 29: play latch structure schematic diagram;

Figure 30: spring structure schematic diagram.

Detailed description of the invention

Can Dismountable the lockset changing key be described in detail below the utility model is a kind of with regard to accompanying drawing 1-30 below.

Embodiment 1

The utility model provide a kind of can Dismountable change the lockset of key, its structure comprises: lock body 01, guard shield 02, key 03, anti-drilling sheet 04, rolling pin 05, blade 06, lock core 07, steel ball 08, spindle 09, back shaft 10, first backing pin 11, shifting block 12, bullet pin 13, spring 14, second backing pin 15.

Lock body 01 is the installation matrix of lockset, described lock body 01 offers the screw hole 0101 that lockset and other components can be connected and fixed; For installing the blind hole 0102 of bullet pin 13 and spring 14; For holding anti-drilling sheet 04 and carrying out spacing anti-drilling sheet shrinkage pool 0103 to it; For holding the elongated hole 0104 of lock core 07 and spindle 09; For holding the rolling pin groove 0105 of rolling pin 05; For installing the second gear pin-and-hole 0106 of the second backing pin 15; For holding the shifting block groove 0107 of shifting block 12; For holding the supporting shaft hole 0108 of back shaft 10 and the first gear pin-and-hole 0109 for installing the first backing pin 11.

Guard shield 02 is the component being enclosed within lock body right-hand member, and it has the bullet pin through hole 0201 held when bullet pin 13 end is ejected, and when guard shield is arranged on after on lock body, bullet pin end is ejected and entered in bullet pin through hole, is locked by guard shield, guard shield cannot be taken off at guard shield end direction; Be provided with the guard shield keyhole 0202 passed for key in the middle part of guard shield, guard shield one end offers the lock body trepanning 0203 for being set with lock body right-hand member; Guard shield plays spacing and protective effect to lock core and anti-drilling sheet, has the collapse resistance effects such as anti-drilling, anti-sawing, pick-proof, protecting against shock.

Key 03 is made up of screw 0301, key bit 0302, spoon shaped piece 0303, intermediate bar 0304, Nut pole 0305, key bar 0306, the shank of the key 0307, roller 0308, riveting plug 0309, rubber ring 0310, third gear pin 0311 and screw 0312.

Head of screw 03011 is contained in key bit shrinkage pool 03021, shank of screw 03012 is through key bit centre bore 03022, spoon shaped piece centre bore 03031 and intermediate bar centre bore 03042, all spoon shaped piece and intermediate bar are together in series, the screw section 03013 of screw is connected with Nut pole screw hole 03051, after screw is tightened up, all spoon shaped piece squeezed tight arrange by key bit face 03022 and intermediate bar end face 03041; Spoon shaped piece 0303 is the part that there is oblate through hole 03031 centre, there is angle of inclination 03032 at edge, part thickness is certain, but angle has multiple difference, generally be no more than five kinds, be numbered 1#-5# respectively, angle is differential is not less than 15 degree, and these spoon of shaped piece is enclosed within shank of screw 03012 and forms key tooth flower after close-packed arrays; Spoon shaped piece domatic 03032 is circumferentially arranged symmetrically with at 180 degree, and such structure is convenient installs; The vertical plane 03033 of spoon shaped piece both sides is plane, and such physical dimension precision is high, avoids that many spoon shaped piece are arranged together causes larger accumulated error; Spoon shaped piece partial circle cylinder 03034 is circumferentially arranged symmetrically with at 180 degree, and this spline structure can strengthen a spoon shaped piece intensity, prevents from causing spoon shaped piece cracked because torsion is excessive; The oblate shrinkage pool 03043 of intermediate bar is enclosed within key bar head 03061, plays anti-rotation effect; There is screw hole 03051 Nut pole one end, the other end face of cylinder has hole, Nut pole riveting stockaded village 03052; Key bar central through hole 03062 passes through for holding Nut pole, there is oblate boss 03061 key bar one end, the other end has oval head 03063, and oblate boss 03061 is connected with the oblate shrinkage pool 03043 of intermediate bar, and oval head 03063 is contained in the shank of the key flat round hole 03071; The shank of the key offering the third gear pin-and-hole 03072 for assembling third gear pin 0311, having roller hole 03073 in the middle part of the shank of the key, the top of the shank of the key offers the screw hole 03074 for rigging screw 0312; Roller 0308 has roller centre bore 03081, hole, roller riveting stockaded village 03082 and the rubber ring groove 03083 for fixing rubber ring; Hole, Nut pole riveting stockaded village 03052 and hole, roller riveting stockaded village 03082 align through key bar central through hole 03062 and roller centre bore 03081 by Nut pole, load riveting stockaded village 0309, and now roller is together with Nut pole engagement, and rotation roller is rotating nut bar just; Rubber ring centre bore 03101 is coaxial with roller centre bore 03081, and rubber circle body 03102 is embedded in rubber ring groove 03083 and also slightly exceeds groove port, and pair roller plays anti-skidding effect; Third gear pin 0311 is embedded between the shank of the key and key bar, prevents key bar from moving in turn, and screw 0312 is installed in screw hole 03074, has tightening effect to Nut pole 0305, prevents Nut pole from loosening, has landscaping effect simultaneously to overall key moulding.

Spoon shaped piece mounting method: key bit 0302, spoon shaped piece 0303, intermediate bar 0304 are connected with screw, head of screw 03016 is aimed at the screw hole 03051 of Nut pole, rotation roller, roller drives Nut pole to rotate simultaneously, when screw is strained, by the spoon shaped piece extruding arrangement on screw closely, the assembling of a key is completed.

Anti-drilling sheet 04 is placed in anti-drilling sheet shrinkage pool 0103 and can relatively rotates, and there is the anti-drilling sheet keyhole 0401 allowing key to pass through at center, and plays tamper-proof effect to lockset.

In rolling pin 05 is in lock body rolling pin groove 0105 when locking state and lock core rolling pin groove 0702, lock core can be blocked makes it rotate, when unblanking, be in lock core rolling pin groove 0702 and blade rolling pin groove 0602, now lock core can be made to rotate in the elongated hole 0104 of lock body by key moment of torsion.

Blade 06 is contained in the rotatable lamella in the blade vallecular cavity 0704 of lock core, its blade keyhole 0601 i.e. keyhole, and blade rolling pin groove 0602 mates with rolling pin 05, can accommodating part rolling pin; Anti-allocating slot 0603 is arranged on blade circumferentially, and the anti-allocating slot on each model blade, all not in same position, has the effect of anti-technical opening and differentiation model; Blade periphery 0604 mates with the face of cylinder of blade vallecular cavity 0704, can rotate relative to lock core; One end face 0608 of rotary spacing section 0605 and both sides, other end 0609 are right angle angles, the edge that blade rotation in blade vallecular cavity 0704 is subject to an end face 0608 and other end 0609 is respectively spacing, and its effect is that the slewing area controlling blade is 90 degree to the maximum; Contact with spoon shaped piece 03032 when blade hole wall 0606 is unblanked, because spoon shaped piece 03032 angle is different, when key turns 90 degree, the blade rotation angle of different model is also different, but spoon shaped piece 0602 rolling pin groove is just in time located can hold rolling pin in a straight line; 0607 is a circular hole part allowing spoon shaped piece to pass through, there are multiple different angles blade rolling pin groove 0602 position, and corresponding spoon shaped piece angle is numbered 1#-5# respectively, inserts key, all blade numberings are numbered to mate with spoon shaped piece and just lock can be opened time corresponding; Blade quantity is equal with spoon shaped piece quantity, is generally no less than 6, and because periphery is provided with multiple anti-allocating slot, its anti-technical opening is very capable.

Lock core 07 is installed on the structural member in lock body elongated hole 0104, it is by keyhole 0701, hold the lock core rolling pin groove 0702 of rolling pin, the lock core face of cylinder 0703 coordinated with lock body elongated hole 0104, hold the blade vallecular cavity 0704 of blade 06, next door 0705, the boss 0706 coordinated with spindle 0902 socket joint, to contact with key key bit end face 03023 and bottom surface, hole 0707 structure member such as grade played the role of positioning to key is formed, blade groove 0704 left hand edge 0708 and right hand edge 0709 are by axle center also in a straight line, position-limiting action is played to blade, next door 0705 and lock core form integral structure, spacing with blades distance is limited, the accumulated error that multiple blades arrangement is formed can be eliminated, this is that other like products do not possess, left hand edge 0708 and right hand edge 0709 are slotted on semi circular surface by center, can realize unitary mould manufacturing process, this also other products similar do not possess.

Anti-drilling steel ball 08 is contained in the steel ball hole 0901 of spindle 09.

There is steel ball hole 0901 spindle 09 one end, anti-drilling steel ball 08 can be held, fluting 0902 coordinates with lock core boss 0706 socket joint, the face of cylinder 0904 coordinates with lock body elongated hole 0104 and can flexible rotating, the spindle face of cylinder 0904 offers spacing edge-cut 0903, second backing pin 15 one end is inserted wherein, and the slewing area of spindle is limited by backing pin 15, thus the slewing area of lock core is also limited; End continuing surface 0905 coordinates with the end birdsmouth 1202 of shifting block, and one end that spindle and shifting block plug is provided with accepts boss 0906, just in time embeds in the center hub 1201 of shifting block during undertaking.

Back shaft 10 is arranged on lock body 01, shifting block 12 is played a supportive role, there is the axle head boss 1001 coordinated with shifting block center hub 1201 socket joint one end of described back shaft 10, the axle body face of cylinder 1002 of back shaft coordinates with lock body supporting shaft hole 0108 and can flexible rotating, the end of back shaft 10 coordinates with end birdsmouth 1202 socket joint of shifting block simultaneously, the axle body face of cylinder 1002 offers a circle for holding the groove 1003 of the first backing pin 11 end.

First backing pin 11 one end is inserted in the groove 1003 of back shaft, and play position-limiting action to back shaft, the other end is riveted tightly in first gear pin-and-hole 0109.

Shifting block 12 is two ends symmetrical structure parts, and shifting block center hub 1201 one end plugs with undertaking boss 0906, axle head boss 1001 socket joint of the other end and back shaft; Match with the end face continuing surface 0905 of spindle in end birdsmouth 1202 one end of shifting block, the other end matches with the axle body face of cylinder 1002 of spindle; The effect of shifting block boss 1203 is used to stir other mechanisms be associated with this lockset.Shifting block 12 is contained in the shifting block groove 0107 on lock body, can rotate under the twisting force of key.

Bullet pin 13 comprises architectural features such as playing pin head part 1301, bullet pin shrinkage pool 1302, the bullet pin face of cylinder 1303, play pin head part 1301 to match with the bullet pin through hole 0201 of guard shield, spring 14 loads in bullet pin shrinkage pool 1302, the bullet pin face of cylinder 1303 matches with the blind hole 0102 on lock body, bullet pin can move in blind hole, when guard shield and lock body are fitted together, play pin head part 1301 ejection and enter by guard shield locking in lock body blind hole 0102, depressing two bullet pins can take off guard shield simultaneously.

Spring 14 is enclosed within bullet pin shrinkage pool 1302, plays elastic force effect to bullet pin 13, makes bullet pin compress in blind hole 0102 or to eject.

Second backing pin 15 one end is inserted in the spacing edge-cut 0903 of spindle, and the other end is riveted tightly in the second gear pin-and-hole 0106 of lock body, and abutment shaft 09 plays axial location and corner restriction.

The course of work of the present utility model and design principle as follows:

One, to unblank operating principle

Key is inserted lock core, key head is successively through guard shield keyhole 0202, anti-drilling sheet keyhole 0401, lock core keyhole 0701, blade keyhole 0601, last key bit end face 03023 contacts with lock core boss 0706 bottom surface, now each spoon of shaped piece is corresponding with the blade of its coupling, rotate key to certain angle, all blade rolling pin groove 0602 places point-blank, rolling pin 05 shifts out in the rolling pin groove 0105 of lock body, enter in lock core rolling pin groove 0702 and blade rolling pin groove 0602, now lock core and blade are meshed into one by rolling pin, be rotated further key, vane drive lock core rotates in lock body elongated hole 0104 together with rolling pin, lock core boss 0706 drives spindle 09 to rotate, the undertaking boss 0906 of spindle 09 drives shifting block 12 to rotate further, outside for driving related organization is finally realized work of unblanking by shifting block boss 1203.

Because the spacing edge-cut 0903 of spindle limits lock core slewing area, make lock core can not 360 degree of revolutions, therefore, key can not be extracted when unblanking, after having unblanked, reversely rotate key and can transfer to key to initial angle, this structure has special important effect.

Two, user's Dismountable change key operating principle

When user's key loss or prevent from being peeped copy time, can change key voluntarily, concrete operations are as follows:

(1) lock core cipher is revised

1, bullet pin 13 is depressed simultaneously.

2, axial pushing protective cover 02 being taken off.

3, anti-drilling sheet 04, bullet pin 13 and spring 14 is taken out.

4, take out lock core 07 and rolling pin 05, when noticing that lock core takes out, avoid the blade in lock core to skid off, maintenance origin-location upward level is placed gently.

5, leaf position is changed, if original leaf position is X1, X2 respectively ... X8, X9, X10, as by X8 and X10 location swap, then new positional alignment is X1, X2 ... X10, X9, X8.

6, lock core 07, rolling pin 05 are reloaded in lock body elongated hole 0104, anti-drilling sheet is put into anti-drilling sheet shrinkage pool 0103, spring 14 and bullet pin 13 are reentered in blind hole 0102, pressure bullet pin, load onto guard shield and axially shift position onto, playing pin head part ejection enters in blind hole 0201, is locked by guard shield, completes lock core cipher amendment.

(2) key cipher is revised

1, unclamp screw 0312, rotation roller 08 unclamps screw 0301.

2, the position of spoon shaped piece 0303 is changed, position as original spoon shaped piece is respectively Y1, Y2 ... Y8, Y9, Y10, corresponding lock core blade change location, by Y8 and Y10 location swap, then newly be arranged as Y1, Y2 ... Y10, Y9, Y8, then load onto again, screws roller, tighten screw, then key cipher has been revised.

Claims (8)

1. one kind can Dismountable change the lockset of key, comprise lock body (01) and the large ingredient of key (03) two, be characterised in that, described lock body (01) inside has the lock core body of interchangeable leaf position, the lateral ends of described lock body (01) is covered with the guard shield (02) removably connected with it, and by described guard shield (02) by lock core body and the shifting block (12) that links with described lock core body is spacing is fixed on lock body inside; Described key (03) has the spoon shaped piece (0303) that can change cochlear position, position and the quantity of the position of described spoon shaped piece (0303) and quantity and described blade match and carry out corresponding adjustment simultaneously, to realize the object changing key.

2. a kind of as claimed in claim 1 can Dismountable change the lockset of key, it is characterized in that, removably connected by spring (14) and bullet pin (13) between described lock body (01) and guard shield (02) and be integrated, described lock body (01) offers the blind hole (0102) for installing bullet pin (13) and spring (14), described guard shield (02) offers the bullet pin through hole (0201) held when bullet pin (13) end is ejected, bullet pin (13) one end holddown spring (14), the other end embeds in bullet pin through hole (0201), guard shield (02) and lock body (01) are locked together.

3. a kind of as claimed in claim 2 can Dismountable change the lockset of key, it is characterized in that, described lock body (01) inside be provided with successively be made up of lock core (07) and blade (06) lock core body, link in described lock core body side and be built-in with the spindle (09) of anti-drilling steel ball (08), the shifting block (12) by spindle (09) driven rotary, and to link in described shifting block (12) opposite side and the back shaft (10) that described shifting block is played a supporting role; When key (03) inserts lock core body when reversing, described lock core body drives spindle (09) to rotate, and the shifting block (12) that spindle (09) connects rotates thereupon, realizes unblanking.

4. a kind of as claimed in claim 1 can Dismountable change the lockset of key, it is characterized in that, be provided with between described lock core body and described guard shield (02) and vandal-proof anti-drilling sheet (04) is played to lockset.

5. a kind of as claimed in claim 1 can Dismountable change the lockset of key, it is characterized in that, described lock core body is the lock core (07) be installed on by rotation in lock body (01), and several blades (06) be installed in described lock core (07) form jointly; Described lock core (07) has key hole end and reverses interlock end, described lock core (07) is provided with several for installing the blade vallecular cavity (0704) of blade (06), is provided with next door (0705) and carries out interval between two adjacent blade vallecular cavities (0704).

6. a kind of as claimed in claim 1 can Dismountable change the lockset of key, it is characterized in that, described blade (06) is installed on the rotatable lamella on lock core (07), circumference along described blade is respectively equipped with anti-allocating slot (0603), blade rolling pin groove (0602) and rotary spacing section (0605), each blade is provided with multiple anti-allocating slot (0603), and the anti-allocating slot (0603) on different leaves is positioned at different positions.

7. a kind of as claimed in claim 1 can Dismountable change the lockset of key, it is characterized in that, described key (03) comprises thread form section, bar section and handle section, and described thread form section comprises the key bit (0302), spoon shaped piece (0303) and the intermediate bar (0304) that are run through successively by screw (0301); Described bar section comprises the Nut pole (0305) be threaded with screw (0301) and the key bar (0306) being sheathed on described Nut pole (0305) periphery; Described handle section comprises the shank of the key (0307) and is installed on the roller (0308) that can be rotated by external control in described the shank of the key (0307); Wherein said intermediate bar (0304) coordinates with the mating face socket joint of described key bar (0306), described Nut pole (0305) one end is threaded with screw (0301), the other end and described the shank of the key (0307) hold in roller (0308) be connected, described key bar (0306) one end coordinates with intermediate bar (0304) socket joint, and the other end is fixed on described the shank of the key (0307) by rubber ring (0310) and backing pin (0311).

8. a kind of as claimed in claim 7 can Dismountable change the lockset of key, it is characterized in that, described spoon shaped piece (0303) is provided with several, match with the quantity of the blade (06) in described lock body and position, the spoon shaped piece (0303) of multiple arranged in series on described Nut pole forms key thread form, and the thickness of each spoon of shaped piece (0303) is identical, angle is different and angle is differential is not less than 15 °.