CN203441218U

CN203441218U - Shaft locking structure

Info

Publication number: CN203441218U
Application number: CN201320432854.8U
Authority: CN
Inventors: 潘延
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2014-02-19
Anticipated expiration: 2023-07-19

Abstract

The utility model discloses a shaft locking structure. The shaft locking structure comprises a shaft, wherein one end of the shaft is provided with a blind hole along the axial direction; a first hole penetrating radially through the shaft is arranged on the shaft,is positioned at the bottom part of the blind hole, and is communicatedwith the blind hole; the blind hole is provided with a locking core, a rotating disc and an inserting pin in sequence from outside to inside; the locking core and the rotating disc are respectively coaxial to the blind hole; the inserting pin and the first hole are coaxially arranged in the first hole; one end of the locking core, which is close to the rotating disc, is provided with a second bulge; the front surface of the rotating disc is provided with a sliding groove; the back surface of the rotating disc is provided with a second groove; the inserting pin comprises a casing which is provided with a casing bulge; the second bulge is inserted into the second groove; the casing bulge is arranged in the sliding groove in a sliding manner; a sleeve is also sheathed on the shaft and is provided with a plurality of sleeve holes which are distributed in a ring-shaped manner; and the first hole is aligned to one sleeve hole. The shaft locking structure disclosed by the utility model is integrated with a locked device, and is reliable in locking and simple in structure.

Description

A kind of shaft lock structure

Technical field

The utility model relates to a kind of shaft lock structure.

Background technology

The stolen phenomenon of vehicle has been the large chronic disease of one in social life, obstinate.What arise at the historic moment is continuing to bring out of various anti-theft techniques, theftproof lock is the most general anti-theft technique, in order to improve anti-theft capability, people except being provided with general theftproof lock, also arrange lock on the vehicles such as various bicycles, vehicle using motor, tricycle, motorcycle on the wheel of vehicle.But, existing known portable electric vehicle using motor and bicycle lock, be all generally as one independently accessory be arranged on car body, pin the movable position of car body, to prevent from being used by other people or by other people theft; These locks are all separated with car body; And this lock is easy to by robber sled, breaks badly, when lock is in the situation that being unlocked or destroy, remove, the car body of this vehicle is intact, still can travel in the same old way; After the lock of this vehicle is destroyed, dismantles by other people, also normally travel while fleeing the scene, except car owner knows that vehicle is lost, the basic None-identified of other pedestrians and stoping, like this, just to thief, flee the scene, illegally use for a long time stolen vehicle to leave very large free space, therefore do not reach anti-theft function truly.

Utility model content

The purpose of this utility model be to propose a kind of can with by locking device, become one, lock shaft lock structure reliable, simple in structure.

For reaching this object, the utility model by the following technical solutions:

A kind of shaft lock structure, comprise axle, one end of described axle offers blind hole vertically, described axle radially connects described axle and is provided with the first hole, described the first hole is positioned at the bottom of described blind hole and is connected with described blind hole, described blind hole is disposed with lock core from outside to inside, rotating disk, latch, wherein, described lock core, described rotating disk all coaxially arranges with described blind hole, described latch and described the first hole coaxially arrange and are arranged in described the first hole, described lock core is provided with the second projection near one end of described rotating disk, the front of described rotating disk is provided with sliding tray, the back side of described rotating disk is provided with the second groove, described latch comprises sleeve pipe, on described sleeve pipe, be provided with sleeve pipe projection, described the second projection is inserted in described the second groove, described sleeve pipe projection is mounted slidably in described sliding tray, on described axle, be also arranged with sleeve, on described sleeve, be provided with a plurality of sleeve holes of annular arrangement, align with sleeve hole described in one of them in described the first hole,

When rotating described lock core to a side, described lock core drives described dial rotation, described rotating disk coordinates by described sliding tray and described sleeve pipe projection, drive described latch to move up along described the first hole, stretch out described axle until while stretching in the described sleeve hole aliging with described the first hole, described in described latch and described sleeve engagement limits, axle rotates, and now, described axle is lock-out state;

When rotating described lock core to opposite side, described lock core drives described dial rotation, described rotating disk coordinates by described sliding tray and described sleeve pipe projection, drive described latch to move down along described the first hole, shift out described sleeve hole until while retracting in described axle, remove the restriction to described axle, now, described axle is rotatable state.

Wherein, described latch also comprises the bearing pin in the collar aperture that is arranged at described sleeve pipe, described bearing pin comprises leading portion and back segment, described leading portion coordinates with described collar aperture, the bottom of described collar aperture is provided with the bottom outlet adapting with described back segment, described back segment passes described collar aperture successively from one end of described sleeve pipe, described bottom outlet, described back segment is threaded by being arranged on the bearing pin screwed hole of described back segment end with lock-screw at the other end of described sleeve pipe, on described back segment, be also arranged with the second spring, described the second spring is arranged between described leading portion and described bottom outlet, the top in described the first hole is provided with step surface, when described latch moves upward along described the first hole, the top of described sleeve pipe and described step surface offset, described leading portion stretches out described axle and stretches into described sleeve hole.

Wherein, between described lock-screw and described sleeve pipe, be provided with pad.

Wherein, described sleeve pipe projection is positioned at the one end near described bottom outlet, and along the radially setting of described sleeve pipe.

Wherein, the bilateral symmetry of described blind hole offers the first groove, described the first groove radially offers the second hole along described axle, in described the second hole, be provided with elastic parts, the interlude of described first groove is provided with the first projection, described in another, the both ends of the first groove are provided with respectively the first projection, on the lateral surface of described lock core, be symmetrically arranged with keyway, in described keyway, be movably set with locking card key, the external surface of a described locking card key is provided with the 3rd groove at interlude, the external surface that locks card key described in another is provided with the 3rd groove at both ends, described the first projection and the corresponding setting of described the 3rd groove, the setting that offsets of described elastic parts and described locking card key.

Wherein, described elastic parts comprises the spring caps stretching out to the inner side of described blind hole, the bottom of described spring caps is provided with the first spring, and the bottom of described the first spring is provided with stop part, and described spring caps slides and arranges along described the second hole under the support of described the first spring.

Wherein, described in each, in the first groove, be all arranged at intervals with two described the second holes.

Wherein, also comprise retainer ring, the external surface of described retainer ring is provided with external screw thread, one end of described lock core is provided with step, the end of described blind hole is provided with internal thread, and described Fixing shrink ring is located on described step, between described retainer ring and described blind hole, is threaded connection.

Wherein, on described sleeve, be provided with a sleeve hole.

Wherein, the outboard end of described lock core is provided with for inserting the keyhole of key, end in described blind hole is also provided with keyhole dust cap, one end of described keyhole dust cap is provided with pan, the end of described blind hole is provided with hinge axis at described pan corresponding position, and described pan and described hinge axis are connected.

The beneficial effects of the utility model are: shaft lock structure of the present utility model, by the one end at axle, offer blind hole, and be disposed radially the first hole, make the first hole be placed in the bottom of blind hole and be communicated with blind hole, in blind hole, set gradually from outside to inside lock core, rotating disk, latch, utilize lock core to drive dial rotation, recycling second groove at the rotating disk back side and being slidably matched of sleeve pipe projection, the rotation of rotating disk is transformed into the rectilinear motion of latch, and then make latch stretch into sleeve hole or shift out sleeve hole, realization is to the locking of axle and release, this shaft lock structure is simple, easy to operate laborsaving again, and the structure of whole lock and axle are merged well, make this shaft lock structure reliable to the locking of the matching used device of needs.

Accompanying drawing explanation

Fig. 1 is shaft lock structure schematic diagram of the present utility model;

Fig. 2 is the exploded perspective view of the shaft lock structure in Fig. 1;

Fig. 3 is the generalized section of the shaft lock structure in Fig. 1;

Fig. 4 is the local enlarged diagram in I place in Fig. 3;

Fig. 5 is the latch structure exploded perspective view in Fig. 2;

Fig. 6 is the Facad structure schematic diagram of the rotating disk in Fig. 2;

Fig. 7 is the structure schematic diagram of the rotating disk in Fig. 2;

Fig. 8 is the axle construction schematic diagram in Fig. 2;

Fig. 9 is the generalized section of the axle in Fig. 8.

In figure: 1-key; 2-axle; 3-sleeve; 4-lock core; 5-retainer ring; 6-rotating disk; 7-elastic parts; 8-latch; 9-locks card key; 10-stop part; 21-the first hole; 22-the second hole; 23-blind hole; 24-the first groove; 25-the first projection; 31-sleeve hole; 41-the second projection; 42-keyway; 43-step; 61-sliding tray; 62-the second groove; 71-spring caps; 72-the first spring; 81-bearing pin; 82-the second spring; 83-sleeve pipe; 84-pad; 85-lock-screw; 811-leading portion; 812-back segment; 813-bearing pin screwed hole; 831-sleeve pipe projection; 832-collar aperture; 91-the 3rd groove.

The specific embodiment

Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.

As shown in Figure 1 to 9, a kind of shaft lock structure, comprise axle 2, one end of axle 2 offers blind hole 23 vertically, axle 2 radially through shaft 2 is provided with the first hole 21, the first hole 21 is positioned at the bottom of blind hole 23 and is connected with blind hole 23, blind hole 23 is disposed with lock core 4 from outside to inside, rotating disk 6, latch 8, wherein, lock core 4, rotating disk 6 all coaxially arranges with blind hole 23, latch 8 and the first hole 21 coaxially arrange and are arranged in the first hole 21, lock core 4 is provided with the second projection 41 near one end of rotating disk 6, the front of rotating disk 6 is provided with sliding tray 61, the back side of rotating disk 6 is provided with the second groove 62, latch 8 comprises sleeve pipe 83, on sleeve pipe 83, be provided with sleeve pipe projection 831, the second projection 41 is inserted in the second groove 62, sleeve pipe projection 831 is mounted slidably in sliding tray 61, on axle 2, be also arranged with sleeve 3, on sleeve 3, be provided with a plurality of sleeve holes 31 of annular arrangement, align with one of them sleeve hole 31 in the first hole 21,

When to a side rotational lock core 4, lock core 4 drives rotating disk 6 to rotate, rotating disk 6 coordinates by sliding tray 61 and sleeve pipe projection 831, drive latch 8 to move up along the first hole 21, projecting shaft 2 is until while stretching in the sleeve hole 31 aliging with the first hole 21, latch 8 rotates with sleeve 3 engagement limits axles 2, and now, axle 2 is lock-out state;

When to opposite side rotational lock core 4, lock core 4 drives rotating disks 6 to rotate, and rotating disk 6 coordinates by sliding tray 61 and sleeve pipe projection 831, drive latch 8 to move down along the first hole 21, shift out sleeve hole 31 until while retracting in axle 2, remove the restriction to axle 2, now, axle 2 is rotatable state.

Shaft lock structure of the present utility model, by offering blind hole 23 in one end of axle 2, and be disposed radially the first hole 21, make the first hole 21 be placed in the bottom of blind hole 23 and be communicated with blind hole 23, in blind hole 23, set gradually from outside to inside lock core 4, rotating disk 6, latch 8, utilize lock core 4 to drive dial rotation, second groove 61 at recycling rotating disk 6 back sides and being slidably matched of sleeve pipe projection 831, the rotation of rotating disk 6 is transformed into the rectilinear motion of latch 8, and then make latch 8 stretch into sleeve hole 31 or shift out sleeve hole 31, realization is to the locking of axle 2 and release, this shaft lock structure is simple, easy to operate laborsaving again, and the structure of whole lock and axle are merged well, make this shaft lock structure reliable to the locking of the matching used device of needs.

Wherein, latch 8 also comprises the bearing pin 81 in the collar aperture 832 that is arranged at sleeve pipe 83, bearing pin 81 comprises leading portion 811 and back segment 812, leading portion 811 coordinates with collar aperture 832, the bottom of collar aperture 832 is provided with the bottom outlet adapting with back segment 812, back segment 812 passes collar aperture 832 successively from one end of sleeve pipe 83, bottom outlet, the other end at sleeve pipe 83 is threaded by being arranged on the bearing pin screwed hole 813 of back segment 812 ends with lock-screw 85, on back segment 812, be also arranged with the second spring 82, the second spring 82 is arranged between leading portion 811 and bottom outlet, the top in the first hole 21 is provided with step surface, when latch 8 moves upward along the first hole 21, top and the step surface of sleeve pipe 83 offset, leading portion 811 projecting shafts 2 also stretch into sleeve hole 31.Preferably, between lock-screw 85 and sleeve pipe 83, be provided with pad 84, while preventing that bearing pin 81 from moving under spring action, because contractility is compared with driving lock-screw 85 to slip into together in collar aperture 832 greatly, cause latch 8 to lose efficacy; , arrange after pad 84, the lock-screw of can convenient selection conventional specification, reduces manufacturing cost meanwhile.And, the ball that a plurality of annulars can be set and be intervally arranged on the hole wall of sleeve hole 31, when latch 8 stretches into or shifts out sleeve hole 31, by the rotation of ball, can alleviate the frictional force between latch 8 and sleeve hole 31, make cooperation more smooth and easy, and then it is more stable, smooth and easy that shaft lock structure is used.Equally, also can the ball of annular arrangement be set on the leading portion 811 of the bearing pin 81 of latch 8, also can play and above-mentioned the same effect.

Further, sleeve pipe projection 831 is positioned at the one end near bottom outlet, and along the radially setting of sleeve pipe 83.This not only facilitates latch 8 and rotating disk 6 by the coordinating of the second chute 61, and can increase the stroke that latch 8 moves again, strengthens the reliability of lock shaft.

The outboard end of lock core 4 is provided with for inserting the keyhole of key 1, end in blind hole 23 is also provided with keyhole dust cap, one end of keyhole dust cap is provided with pan, and the end of blind hole 23 is provided with hinge axis at pan corresponding position, and pan and hinge axis are connected.Do not using or during lock shaft, keyhole dust cap cuts out, can effectively prevent from dirtyly entering keyhole and affecting the reliability of axle lock.

This shaft lock structure also comprises retainer ring 5, and the external surface of retainer ring 5 is provided with external screw thread, and an end of lock core 4 is provided with step 43, and the end of blind hole 23 is provided with internal thread, and retainer ring 5 is sheathed on step 43, between retainer ring 5 and blind hole 23, is threaded connection.By retainer ring 5, can play the axial restriction to lock core 4, strengthen the stability of total.

The bilateral symmetry of blind hole 23 offers the first groove 24, the first groove 24 radially offers the second hole 22 along axle 2, in the second hole 22, be provided with elastic parts 7, the interlude of first groove 24 is provided with the first projection 25, the both ends of another the first groove 24 are provided with respectively the first projection 25, on the lateral surface of lock core 4, be symmetrically arranged with keyway 42, in keyway 42, be movably set with locking card key 9, the external surface of a locking card key 9 is provided with the 3rd groove 91 at interlude, the external surface of another locking card key 9 is provided with the 3rd groove 91 at both ends, the first projection 25 and the corresponding setting of the 3rd groove 91, the setting that offsets of elastic parts 7 and locking card key 9.Wherein, elastic parts 7 comprises the spring caps 71 stretching out to the inner side of blind hole 23, and the bottom that the bottom of spring caps 71 is provided with the first spring 72, the first springs 72 is provided with stop part 10, and spring caps 71 slides and arranges along the second hole 22 under the support of the first spring 72.Preferably, for strengthening the support force of 7 pairs of locking card keys 9 of elastic parts, in each first groove 24, be all arranged at intervals with two the second holes 22, in each second hole 22, be provided with an elastic parts 7.By controlling the quantity in the second hole 22, the effective tightness degree that coordinates of Control Shaft 2 and lock core 4, improves the reliability of lock.

Preferably, lock core 4 can adopt mature structure of the prior art.In the present embodiment, the inside of this lock core 4 is provided with the blade of unblanking of some circles, root piece and lining between some circles, lining dual lock blade and a root piece play position-limiting action, lining can be arranged in lock core 4, also can be arranged on outside lock core 4, on each blade of unblanking, all offer V-type or the trapezoidal groove of unblanking, and the outboard end of lock core 4 is provided with for inserting the keyhole of key 1, keyhole inwall is provided with the projection of the work that can match with the alveolus on key 1, between root piece have positioning protrusion and a square groove of unblanking, this projection and the up and down two ends of groove vertical distribution at a root piece of unblanking, unblank blade and a root piece is arranged in lock core 4.

When needs are unblanked, key 1 is inserted in the keyhole of lock core 4, alveolus on key 1 and the corresponding cooperation of projection in keyhole, the projection of unblanking in blade and keyhole is arranged with certain angular misalignment mutually, while unblanking, the blade of unblanking is subject to the restriction of key 1 alveolus, unblank just collective keyway 42 places to lock core 4 with key 1 twisting that arrange in a line of groove of unblanking of blade, locking card key 9 in lock core 4 keyways 42 is in interior pressure condition, just in time fall in the groove of unblanking of the blade of unblanking, be stuck in the locking card key 9 extruding elastic parts 7 in keyway 42, and fall into the first groove 24 of blind hole 23, and by the projection of first in the first groove 24 and the 3rd groove 91 corresponding matching that lock in card key 9, the restriction of formation to the axis direction of locking card key 9, now, lock core 4 forms opening.

In the present embodiment, on sleeve 3, be provided with 8 sleeve holes 31.Certainly, the quantity of sleeve hole 31 can be determined according to the pore size of the diameter of sleeve 3 and sleeve hole and actual needs, by controlling quantity and the interval of sleeve hole 31, Control Shaft 2 can also allow the angle of rotating when by latch 8 locking well, that is to say, key 1 is inserted in keyhole, turn key 1, band movable lock core 4 rotates, lock core 4 drives rotating disk 6 to rotate, after rotating disk 6 drives latch 8 to move a certain distance, might not align with one of them sleeve hole 31 very accurately in the first hole 21, so, latch 8 also might not extend in sleeve hole 31 very accurately, form and coordinate with sleeve hole 31, the restriction of realization to axle 2, but, the latch 8 of this shaft lock structure is owing to being provided with the second spring 82 between the leading portion 811 of its bearing pin 81 and the bottom outlet of sleeve pipe 83, when do not align with sleeve hole 31 in the first hole 21, latch 8 is subject to upwards promoting of sliding tray 61 and sleeve 83 inwalls push downwards, make after bearing pin 81 compression the second springs 82 also, in collar aperture 83, can't to cause the bad reaction of device.But, when again twisting axle 2 or sleeve 3, when the angle of twisting is the angle between latch 8 and hithermost sleeve hole 31 just, sleeve hole 31 will be in the first hole 21 alignment, now, bearing pin 8 is subject to the effect of the spring force of the second spring 82 and slides to the outer direction of collar aperture 83, until slide out to not length by compression of the second spring 82, now, bearing pin 81 is projecting shaft 2 extending in sleeve hole 31, completes and the coordinating of sleeve hole 31, thus the rotation of restrictive axes 2, certainly, now sleeve 3 is also relatively-stationary state.Therefore, this shaft lock structure only needs user to carry out locking work according to the key turns angle of actual set, even if axle was not limited completely at that time, also can't affect the effect of locking.This shaft lock structure has higher reliability.

If this shaft lock structure is applied to, on axle for vehicle that bicycle, motorcycle etc. are conventional, can effectively prevent the theft of vehicle.

Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.

Claims

1. a shaft lock structure, comprise axle (2), it is characterized in that, one end of described axle (2) offers blind hole (23) vertically, described axle (2) radially connects described axle (2) and is provided with the first hole (21), described the first hole (21) is positioned at the bottom of described blind hole (23) and is connected with described blind hole (23), described blind hole (23) is disposed with lock core (4) from outside to inside, rotating disk (6), latch (8), wherein, described lock core (4), described rotating disk (6) all coaxially arranges with described blind hole (23), described latch (8) and described the first hole (21) coaxially arrange and are arranged in described the first hole (21), described lock core (4) is provided with the second projection (41) near one end of described rotating disk (6), the front of described rotating disk (6) is provided with sliding tray (61), the back side of described rotating disk (6) is provided with the second groove (62), described latch (8) comprises sleeve pipe (83), on described sleeve pipe (83), be provided with sleeve pipe projection (831), described the second projection (41) is inserted in described the second groove (62), described sleeve pipe projection (831) is mounted slidably in described sliding tray (61), on described axle (2), be also arranged with sleeve (3), on described sleeve (3), be provided with a plurality of sleeve holes (31) of annular arrangement, align with sleeve hole described in one of them (31) in described the first hole (21),

When rotating described lock core (4) to a side, described lock core (4) drives described rotating disk (6) to rotate, described rotating disk (6) coordinates by described sliding tray (61) and described sleeve pipe projection (831), drive described latch (8) to move up along described the first hole (21), stretch out described axle (2) until while stretching in the described sleeve hole (31) that aligns with described the first hole (21), described latch (8) rotates with axle (2) described in described sleeve (3) engagement limits, now, described axle (2) is lock-out state;

When rotating described lock core (4) to opposite side, described lock core (4) drives described rotating disk (6) to rotate, described rotating disk (6) coordinates by described sliding tray (61) and described sleeve pipe projection (831), drive described latch (8) to move down along described the first hole (21), shift out described sleeve hole (31) until while retracting in described axle (2), remove the restriction to described axle (2), now, described axle (2) is rotatable state.

2. a kind of shaft lock structure according to claim 1, it is characterized in that, described latch (8) also comprises the bearing pin (81) in the collar aperture (832) that is arranged at described sleeve pipe (83), described bearing pin (81) comprises leading portion (811) and back segment (812), described leading portion (811) coordinates with described collar aperture (832), the bottom of described collar aperture (832) is provided with the bottom outlet adapting with described back segment (812), described back segment (812) passes described collar aperture (832) successively from one end of described sleeve pipe (83), described bottom outlet, described back segment (812) is threaded by being arranged on the bearing pin screwed hole (813) of described back segment (812) end with lock-screw (85) at the other end of described sleeve pipe (83), on described back segment (812), be also arranged with the second spring (82), described the second spring (82) is arranged between described leading portion (811) and described bottom outlet, the top in described the first hole (21) is provided with step surface, when described latch (8) moves upward along described the first hole (21), top and the described step surface of described sleeve pipe (83) offset, described leading portion (811) stretches out described axle (2) and stretches into described sleeve hole (31).

3. a kind of shaft lock structure according to claim 2, is characterized in that, between described lock-screw (85) and described sleeve pipe (83), is provided with pad (84).

4. a kind of shaft lock structure according to claim 2, is characterized in that, described sleeve pipe projection (831) is positioned at the one end near described bottom outlet, and along the radially setting of described sleeve pipe (83).

5. a kind of shaft lock structure according to claim 1, it is characterized in that, the bilateral symmetry of described blind hole (23) offers the first groove (24), described the first groove (24) radially offers the second hole (22) along described axle (2), in described the second hole (22), be provided with elastic parts (7), the interlude of described first groove (24) is provided with the first projection (25), described in another, the both ends of the first groove (24) are provided with respectively the first projection (25), on the lateral surface of described lock core (4), be symmetrically arranged with keyway (42), in described keyway (42), be movably set with locking card key (9), the external surface of a described locking card key (9) is provided with the 3rd groove (91) at interlude, the external surface that locks card key (9) described in another is provided with the 3rd groove (91) at both ends, described the first projection (25) and the corresponding setting of described the 3rd groove (91), the setting that offsets of described elastic parts (7) and described locking card key (9).

6. a kind of shaft lock structure according to claim 5, it is characterized in that, described elastic parts (7) comprises the spring caps (71) stretching out to the inner side of described blind hole (23), the bottom of described spring caps (71) is provided with the first spring (72), the bottom of described the first spring (72) is provided with stop part (10), and described spring caps (71) slides and arranges along described the second hole (22) under the support of described the first spring (72).

7. a kind of shaft lock structure according to claim 5, is characterized in that, is all arranged at intervals with two described the second holes (22) described in each in the first groove (24).

8. a kind of shaft lock structure according to claim 1, it is characterized in that, also comprise retainer ring (5), the external surface of described retainer ring (5) is provided with external screw thread, one end of described lock core (4) is provided with step (43), the end of described blind hole (23) is provided with internal thread, and it is upper that described retainer ring (5) is sheathed on described step (43), between described retainer ring (5) and described blind hole (23), is threaded connection.

9. a kind of shaft lock structure according to claim 1, is characterized in that, is provided with 8 sleeve holes (31) on described sleeve (3).

10. a kind of shaft lock structure according to claim 1, it is characterized in that, the outboard end of described lock core (4) is provided with for inserting the keyhole of key (1), end in described blind hole (23) is also provided with keyhole dust cap, one end of described keyhole dust cap is provided with pan, the end of described blind hole (23) is provided with hinge axis at described pan corresponding position, and described pan and described hinge axis are connected.