CN114550347B

CN114550347B - Unlocking mechanism and unlocking key

Info

Publication number: CN114550347B
Application number: CN202011356287.3A
Authority: CN
Inventors: 尹学文; 谭泳; 黄维川
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2023-07-25
Anticipated expiration: 2040-11-26
Also published as: CN114550347A

Abstract

The invention provides an unlocking mechanism and an unlocking key. Wherein, unlocking mechanism includes: a housing; an unlocking blade assembly having a working position extending out of the housing and a retracted position retracted within the housing; the screw is in threaded transmission fit with the unlocking piece assembly and can drive the unlocking piece assembly to move between a working position and a withdrawing position; the driving assembly is in driving connection with the screw rod and can drive the screw rod to rotate; the authorization component moves synchronously with the unlocking piece component and can unlock the lock cylinder through magnetic force; the fixed electrode is arranged in the shell and can be electrically connected or separated from the authorization component, when the unlocking sheet component is positioned at the retraction position, the authorization component is separated from the fixed electrode, the authorization component is not electrified, and when the unlocking sheet component is positioned at the working position, the authorization component is electrically connected with the fixed electrode, and magnetic force is generated after the authorization component is electrified. The invention solves the problem of low safety of the computer key in the prior art.

Description

Unlocking mechanism and unlocking key

Technical Field

The invention relates to the technical field of unlocking devices, in particular to an unlocking mechanism and an unlocking key.

Background

In the field of error protection, computer keys have an irreplaceable position. The unlocking process of the computer key and the lockset is directly related to an unlocking mechanism, and the main characteristics of the unlocking mechanism are a key sheet action mechanism and an authorization mechanism in the field of error prevention safety.

Most key sheets in the existing computer keys are in a convex column shape, a sheet shape or a strip shape. In practical application, most of the key sheet actuating mechanisms adopt fixed structures, namely the key sheet cannot be retracted, and the key sheet is exposed in the mode and is easy to wear and even damage due to falling and collision; or the key sheet is retracted in a folding mode, and the key sheet is ejected out easily due to misoperation when the mechanical pressing operation is adopted in the folding mode.

The authorization modes in the computer key can be divided into contact type authorization and non-contact type authorization. The separation or contact of the authorization mechanism is controlled by the drive element to form a contact authorization mechanism. The drive element controls the magnet to approach or separate from the induction element to form a non-contact authorization mechanism. In the existing mode, in a system for forming an authorization mechanism, key parts of the system and the system generate relative movement, and the precision requirement on the parts is high. There is a high risk of failure and a relatively high cost.

The prior unlocking key hiding structure with the folding function comprises a key, a key handle, a rotating block, a resetting block, a clamping block and a resetting torsion spring; through the rotating block, the spring returns, and the fixture block realizes that the key is locked in the key handle when not needing to be unlocked, and the key is released from the key handle when being unlocked. The scheme is used for applying the key sheet rotating and folding technology to the unlocking key, has a simple structure and is convenient to use, but the problem that the key is ejected out by the misoperation button is not solved yet.

Disclosure of Invention

The invention mainly aims to provide an unlocking mechanism and an unlocking key, which are used for solving the problem of low safety of a computer key in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided an unlocking mechanism comprising: a housing; the unlocking piece assembly is arranged on the shell in a telescopic way and is provided with a working position extending out of the shell and a retracting position retracting into the shell; the screw is in threaded transmission fit with the unlocking piece assembly and can drive the unlocking piece assembly to move between a working position and a withdrawing position; the driving assembly is in driving connection with the screw and can drive the screw to rotate so as to drive the unlocking plate assembly to move between a working position and a retracted position; the authorization component is arranged on the unlocking piece component and moves synchronously with the unlocking piece component, and the authorization component can unlock the lock cylinder through magnetic force; the fixed electrode is arranged in the shell and can be electrically connected or separated from the authorization component, when the unlocking piece component is positioned at the retraction position, the authorization component is separated from the fixed electrode, the authorization component is not electrified and can not unlock the lock cylinder, when the unlocking piece component is positioned at the working position, the authorization component is electrically connected with the fixed electrode, and magnetic force is generated after the unlocking piece component is electrified so as to unlock the lock cylinder.

Further, the drive assembly includes: the screw rod is sleeve-shaped and sleeved on the outer side of the driving piece; the shaft sleeve is connected with the output shaft of the driving piece, a noncircular through hole is formed in one end of the screw rod, the shaft sleeve is noncircular and is contained in the noncircular through hole, and the side wall of the noncircular through hole can be extruded to drive the screw rod to rotate.

Further, the drive assembly still includes the mount, and the fixed cover of mount is established in the driving piece outside to be located between driving piece and the screw rod, the one end that the axle sleeve was kept away from to the mount has spacing arch, and the casing has the rib, spacing arch and rib butt in order to hinder the circumference rotation of mount, and the one end butt that the axle sleeve was kept away from to the screw rod on spacing arch or rib, the inner wall of screw rod has spacing muscle, spacing muscle and the terminal surface butt that the axle sleeve is close to spacing arch.

Further, the shell is provided with a positioning column, the shaft sleeve is rotatably sleeved outside the positioning column, the positioning column is provided with a central hole, and an output shaft of the driving piece can extend into the central hole.

Further, the unlocking tab assembly includes: the unlocking piece is provided with a mechanical tooth shape matched with the lock cylinder, and the authorization component is arranged on the unlocking piece; the nut is connected with the unlocking piece, and the nut and the unlocking piece synchronously move, the threads on the side part of the nut are meshed with the threads of the screw rod, and the unlocking piece is driven to extend out of or retract into the shell under the rotation of the screw rod.

Further, the flight angle of the screw is smaller than the friction angle.

Further, the authorization component includes: the unlocking piece is provided with an accommodating groove, and the iron core is arranged in the accommodating groove; the first coil is arranged in the accommodating groove and is electrically connected with the iron core; and the probe is electrically connected with the first coil, and one end of the probe extends out of the accommodating groove and can be electrically connected with or separated from the fixed electrode.

Further, the housing includes: the bracket is provided with a containing area for containing the unlocking plate component, the side wall of the containing area is provided with a slide way, and the unlocking plate component is provided with a convex rib which extends into the slide way and slides in the slide way; and the end cover is connected with the bracket and surrounds the fixed unlocking piece assembly and the driving assembly together with the bracket.

Further, the end cover is provided with a wire through hole, one side of the end cover facing the driving assembly is provided with ribs, and the ribs are positioned on the outer side of the driving assembly and prevent the driving assembly from integrally rotating.

Further, the unlocking mechanism further includes: the first detection piece is positioned in the shell and can detect the position of the unlocking piece assembly so as to determine the state of the unlocking piece assembly; the second detection piece is positioned at one end of the shell close to the lock cylinder and can detect magnetic flux change in the process of rotating and unlocking the unlocking mechanism so as to determine the unlocking and locking state of the lock cylinder; the second coil is positioned at one end of the shell close to the lock cylinder and can supply power, collect codes and communicate with the lock cylinder.

According to another aspect of the present invention, there is provided an unlocking key including the unlocking mechanism described above.

By adopting the technical scheme, the screw is in threaded fit with the unlocking piece assembly, when the unlocking mechanism is used for unlocking the lock cylinder, the driving assembly drives the screw to rotate, and the screw can drive the unlocking piece assembly to extend out of the shell under the action of threaded fit so as to be switched to the working position, so that the unlocking mechanism can be used for unlocking; when the unlocking mechanism is not used, the driving assembly drives the screw rod to reversely rotate, and the screw rod drives the unlocking piece assembly to reversely slide, so that the unlocking piece assembly is retracted into the shell to be switched to the retracted position. Meanwhile, unlocking and locking of the authorized marble of the lock core are achieved through cooperation between the authorized assembly and the fixed electrode, specifically, when the unlocking piece assembly is located at the retracted position, the authorized assembly and the fixed electrode are separated, the authorized assembly is not electrified at the moment, magnetism cannot be generated, only when the unlocking piece assembly is located at the working position, the authorized assembly is electrically connected with the fixed electrode, the fixed electrode supplies power for the authorized assembly, the authorized assembly can generate magnetic force, the authorized marble can be driven to move through the magnetic force, and unlocking of the authorized marble is achieved. Above-mentioned setting mode is through the authorized subassembly of the automatic flexible cooperation non-contact response of unblock piece subassembly, on the one hand effectively prevent external maloperation to the influence of unblock key, when avoiding non-operating condition, the unblock piece subassembly pops out, improve the carrying safety and the convenience of use of unblock key, on the other hand authorizes the simple effectively of mode, avoid external and inside action to interfere, avoid drive assembly malfunction to lead to authorizing the inefficacy simultaneously, thereby effectively solve the unblock key and expose can not automatic withdrawal, influence the outward appearance, problem that the safety in utilization is low, and authorize the big problem of occupation space when the subassembly slides along with the unblock piece subassembly. And the authorization component and the driving component are not exposed, so that the appearance consistency is ensured, the structure is compact, the control is convenient, the miniaturization of products is facilitated, and the unlocking key is suitable for occasions with smaller unlocking key thickness.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic diagram of the unlocking mechanism according to the invention in the locked state;

FIG. 2 is a schematic view of the unlocking mechanism of FIG. 1 with the unlocking tab assembly in the operative position;

FIG. 3 shows a schematic view of the drive assembly of the unlocking mechanism of FIG. 1 mated with a screw;

FIG. 4 shows a schematic structural view of an unlocking tab assembly of the unlocking mechanism of FIG. 1;

FIG. 5 is a schematic diagram showing the structure of an unlocking tab assembly and an authorization assembly of the unlocking mechanism of FIG. 1;

FIG. 6 shows a schematic structural view of a housing of the unlocking mechanism of FIG. 1;

fig. 7 shows a schematic structural view of a bracket of the housing in fig. 6;

fig. 8 shows a schematic structural view of an end cap of the housing of fig. 6.

Wherein the above figures include the following reference numerals:

10. a housing; 11. ribs; 12. positioning columns; 13. a bracket; 131. a slideway; 132. unlocking the hole; 14. an end cap; 141. a wire through hole; 20. an unlocking tab assembly; 21. unlocking the sheet; 211. a receiving groove; 22. a nut; 23. convex ribs; 30. a screw; 31. a non-circular via; 40. a drive assembly; 41. a driving member; 42. a shaft sleeve; 43. a fixing frame; 431. a limit protrusion; 50. an authorization component; 51. an iron core; 52. a first coil; 53. a probe; 60. fixing the electrode; 70. a first detecting member.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

In order to solve the problem of low safety of a computer key in the prior art, the invention provides an unlocking mechanism and an unlocking key. The unlocking key has the following unlocking mechanism.

An unlocking mechanism as shown in fig. 1 to 8, comprising a housing 10, an unlocking blade assembly 20, a screw 30, a driving assembly 40, an authorizing assembly 50 and a fixed electrode 60, wherein the unlocking blade assembly 20 is telescopically arranged on the housing 10 and has a working position extending out of the housing 10 and a retracted position retracted into the housing 10; the screw 30 is in threaded transmission fit with the unlocking piece assembly 20 and can drive the unlocking piece assembly 20 to move between a working position and a retracted position; the drive assembly 40 is in driving connection with the screw 30 and is capable of driving the screw 30 to rotate to drive the unlocking plate assembly 20 between the working position and the retracted position; the authorization assembly 50 is arranged on the unlocking piece assembly 20 and moves synchronously with the unlocking piece assembly 20, and the authorization assembly 50 can unlock the lock cylinder through magnetic force; the fixed electrode 60 is disposed in the housing 10 and can be electrically connected to or separated from the authorization assembly 50, when the unlocking tab assembly 20 is in the retracted position, the authorization assembly 50 is separated from the fixed electrode 60, the authorization assembly 50 is not energized, and the lock cylinder cannot be unlocked, when the unlocking tab assembly 20 is in the operating position, the authorization assembly 50 is electrically connected to the fixed electrode 60, and a magnetic force is generated after the authorization assembly 50 is energized, so as to unlock the lock cylinder.

In the embodiment, by arranging the screw 30, the screw 30 is in threaded fit with the unlocking piece assembly 20, as shown in fig. 1 and 2, when the unlocking mechanism is used for unlocking the lock cylinder, the screw 30 is driven to rotate by the driving assembly 40, and the screw 30 can drive the unlocking piece assembly 20 to extend out of the shell 10 under the action of threaded fit so as to be switched to the working position, so that the unlocking mechanism can be used for unlocking; when the unlocking mechanism is not in use, the driving assembly 40 drives the screw rod 30 to reversely rotate, and the screw rod 30 drives the unlocking piece assembly 20 to reversely slide, so that the unlocking piece assembly is retracted into the housing 10 to be switched to the retracted position. Meanwhile, the unlocking and locking of the authorizing marble of the lock core are realized through the cooperation between the authorizing component 50 and the fixed electrode 60, specifically, as shown in fig. 1 and 2, when the unlocking piece component 20 is located at the retracted position, the authorizing component 50 is separated from the fixed electrode 60, the authorizing component 50 is not electrified and cannot generate magnetism, and only when the unlocking piece component 20 is located at the working position, the authorizing component 50 is electrically connected with the fixed electrode 60, the fixed electrode 60 supplies power for the authorizing component 50, the authorizing component 50 can generate magnetic force, and the authorizing marble can be driven to move through the magnetic force, so that unlocking of the authorizing marble is realized. The above-mentioned setting mode is through the authorized subassembly 50 of the automatic flexible cooperation non-contact response of unblock piece subassembly 20, on the one hand effectively prevent external maloperation to the influence of unblock key, when avoiding non-operating condition, unblock piece subassembly 20 pops out, improve the carrying safety and the convenience of use of unblock key, on the other hand authorizes the simple effective of mode, avoid external and inside action to interfere, avoid driving assembly 40 malfunction to lead to authorizing the inefficacy simultaneously, thereby effectively solve the unblock key and expose can not automatic withdrawal, influence the outward appearance, problem that the safety in utilization is low, and the big problem of occupation space when authorizing subassembly 50 to slide along with unblock piece subassembly 20. And the authorization component 50 and the driving component 40 are not exposed, so that the appearance consistency is ensured, the structure is compact, the control is convenient, the miniaturization of products is facilitated, and the unlocking key is suitable for occasions with smaller unlocking key thickness.

In this embodiment, as shown in fig. 3, the driving assembly 40 includes a driving member 41 and a shaft sleeve 42, the screw 30 of this embodiment is in a sleeve shape, and is sleeved outside the driving member 41, and the outside of the screw 30 is provided with threads; the shaft sleeve 42 is connected with the output shaft of the driving piece 41, the noncircular through hole 31 is formed in one end of the screw 30, the outer wall of the shaft sleeve 42 is noncircular, the shape of the noncircular through hole 31 is matched with that of the shaft sleeve 42, the shaft sleeve 42 is contained in the noncircular through hole 31, and therefore, when the driving piece 41 drives the shaft sleeve 42 to rotate, the outer side wall of the shaft sleeve 42 can squeeze the side wall of the noncircular through hole 31, and the screw 30 is driven to rotate together, so that the movement of the unlocking plate assembly 20 between the working position and the retracting position is realized. Through the arrangement, the size of the space occupied by the screw 30 is reduced on the premise of ensuring reliable driving, so that the size of an unlocking key can be further reduced, and miniaturization is facilitated. Of course, the screw 30 may be disposed as a rod-like member placed on the side of the driving member 41, or may be disposed in other manners as needed.

In this embodiment, the driving assembly 40 further includes a fixing frame 43, the driving member 41 is a driving motor, the fixing frame 43 is in a long sleeve shape, and is sleeved outside the driving member 41, and is fixedly disposed relative to the driving member 41, the fixing frame 43 is located between the driving member 41 and the screw 30, when the screw 30 rotates, the shell portion of the driving member 41 and the fixing frame 43 are both motionless, and the output shaft of the driving member 41, the shaft sleeve 42 and the screw 30 all synchronously rotate. As shown in fig. 2, 3, 6 and 8, a limiting protrusion 431 is provided at one end of the fixing frame 43 far away from the shaft sleeve 42, the housing 10 is provided with ribs 11, the limiting protrusion 431 and the ribs 11 extend along the circumferential direction of the driving member 41, and respectively extend into the gaps of each other, specifically, extend along the circumferential direction of the driving member 41, the limiting protrusion 431 and the ribs 11 are arc-shaped, and are abutted to form a complete circular ring, so that the limiting protrusion 431 and the side surfaces of the ribs 11 are abutted to each other to stop, thereby preventing the circumferential rotation of the fixing frame 43.

And one end of the screw 30 far away from the shaft sleeve 42 is abutted against the limiting protrusion 431 or the rib 11, so that the movement of the screw 30 in one axial direction is limited, meanwhile, the inner wall of the screw 30 is provided with a limiting rib, and the limiting rib is abutted against the end face of the shaft sleeve 42 close to the limiting protrusion 431, so that the movement of the screw 30 in the other axial direction is limited. Like this, through above-mentioned spacing protruding 431 or rib 11, with spacing rib combined action for screw rod 30 axial two directions are both restricted, and screw rod 30 can only rotate under the drive of driving piece 41, in order to guarantee the reliable drive to unblock piece subassembly 20.

Optionally, the housing 10 has a positioning post 12, and the sleeve 42 is rotatably sleeved outside the positioning post 12, so that rotation of the sleeve 42 is limited. Meanwhile, a central hole is formed in the positioning column 12 and aligned with the through hole of the shaft sleeve 42, and the output shaft of the driving member 41 can penetrate through the through hole of the shaft sleeve 42 and extend into the central hole, so that reliable driving between the driving member 41 and the shaft sleeve 42 is ensured.

As shown in fig. 1, 2 and 4, the unlocking plate assembly 20 comprises an unlocking plate 21 and a nut 22, wherein the unlocking plate 21 has a mechanical tooth shape matched with a lock cylinder and can extend or retract into the shell 10, and the authorization assembly 50 is arranged on the unlocking plate 21 and synchronously moves in a telescopic manner along with the unlocking plate 21; the nut 22 is connected with one end of the unlocking piece 21 far away from the casing 10, specifically, a mounting hole is formed in the end face of the end of the unlocking piece 21 which does not extend out of the casing 10, the nut 22 is provided with a through hole, and the through hole and the mounting hole of the nut 22 are penetrated by a screw and other components, so that the nut 22 and the unlocking piece 21 are fixedly connected together, and the nut 22 and the unlocking piece 21 synchronously move. Of course, in addition to the method of the present embodiment, holes may be formed in the radial direction on the side surfaces of the unlocking piece 21 and the nut 22, and the locking may be performed by a pin shaft. The outer side wall of the nut 22 is also threaded to engage with the threads of the screw 30 so that when the screw 30 is rotated, the screw 30 moves the nut 22 and the unlocking plate 21 in a telescopic motion to extend or retract the housing 10.

Preferably, the lead angle of the screw 30 is smaller than the friction angle, so that when the driving member 41 no longer drives the screw 30 to rotate, self-locking is formed between the nut 22 and the screw 30, so that the positions of the nut 22 and the unlocking plate 21 are kept stable.

As shown in fig. 5, the authorization assembly 50 includes a core 51, a first coil 52, and a probe 53, the unlocking tab 21 having a receiving slot 211, the core 51 being disposed within the receiving slot 211; the first coil 52 is disposed in the accommodating groove 211 and wound on the outer side of the core 51, one end of the first coil 52 is electrically connected with the core 51, the other end of the first coil 52 is electrically connected with the probe 53, and one end of the probe 53 protrudes out of the accommodating groove 211 and can be electrically connected with or separated from the fixed electrode 60. Thus, when the unlocking plate assembly 20 is in the working position, the probe 53 is electrically connected with the fixed electrode 60, the electric power of the fixed electrode 60 is transmitted to the first coil 52 and the iron core 51 through the probe 53, so that magnetic force is generated on the first coil 52 and the iron core 51, and the authorized pins of the lock cylinder can be attracted or repelled through the magnetic force, so that the authorized pins are unlocked, and when the unlocking plate 21 is in the retracted position, the probe 53 is separated from the fixed electrode 60, the first coil 52 and the iron core 51 are not electrified, so that magnetism is not generated, and the authorized pins are not attracted or repelled.

The two fixed electrodes 60 of this embodiment are respectively connected with the positive and negative poles of the external power source through wires, the two probes 53 are also respectively corresponding to the two fixed electrodes 60, and considering that the iron core 51 is to extend out of the casing 10 to be matched with the authorized marble, and the probes 53 are matched with the fixed electrodes 60 in the casing 10, as shown in fig. 5, the accommodating groove 211 of this embodiment is in a shape of a Λ, two ends of the lower part of the accommodating groove are respectively provided with one probe 53, and the bending part of the upper part of the accommodating groove is provided with the iron core 51, and electric conduction is realized between the three through the first coil 52. Of course, the specific arrangement of the core 51, the first coil 52 and the probe 53 may be changed as required, as long as it can be reliably engaged with the fixed electrode 60 and the authorized pins.

As shown in fig. 6 to 8, the housing 10 includes a bracket 13 and an end cover 14, the bracket 13 has a holding area for holding the unlocking plate assembly 20, the holding area is in a strip shape, a slide way 131 is provided on an inner side wall of the holding area, an unlocking hole 132 for penetrating the unlocking plate 21 is provided on an end surface of the holding area, correspondingly, a convex rib 23 is provided on a side wall of the unlocking plate 21 of the unlocking plate assembly 20, the convex rib 23 extends into the slide way 131, thus the unlocking plate 21 can only slide in the slide way 131 and cannot rotate, thereby avoiding the situation that the screw 30 drives the unlocking plate assembly 20 to rotate, and ensuring the reliability of the movement of the unlocking plate assembly 20. The end cap 14 is connected with the bracket 13 for shielding one end of the receiving area far away from the locking hole 132, thereby restricting the unlocking tab assembly 20 in the receiving area to prevent the unlocking tab assembly 20 from being separated, and the end cap 14 is also engaged with the bracket 13 to enclose opposite sides of the driving assembly 40, thereby fixing the driving assembly 40 on the housing 10. The whole structure of the shell 10 can adopt a full-surrounding or half-surrounding or a combination of the two modes, and the unlocking key can be additionally provided with a shell outside the unlocking mechanism according to the requirement on the basis of the unlocking mechanism.

Optionally, the end cap 14 is provided with a wire hole 141 for leading out a wire connected to the driving member 41 or the fixed electrode 60 so as to supply power. The rib 11 matched with the limiting protrusion 431 is arranged on one side, facing the driving assembly 40, of the end cover 14, the rib 11 is located on the fixing frame 43 of the driving assembly 40 and is staggered with the limiting protrusion 431 in the circumferential direction, the rib 11 can avoid integral rotation of the driving assembly 40, and meanwhile, the screw 30 can be limited to move along the axis.

In this embodiment, the unlocking mechanism further includes a first detecting member 70, a second detecting member and a second coil, wherein the first detecting member 70 is a position sensor, which is located in the housing 10 and is capable of detecting the position of the unlocking sheet assembly 20 to determine the extended and retracted state of the unlocking sheet assembly 20; the second detection piece is a Hall element, is positioned at one end of the shell 10 close to the lock cylinder, can be matched with magnetic steel in the lock cylinder, and detects magnetic flux change in the process of rotating and unlocking the unlocking mechanism so as to determine the unlocking and locking state of the lock cylinder; the second coil is located at one end of the shell 10 close to the lock core, and can supply power, collect codes and communicate with the lock core.

In addition, the unlocking mechanism may be further provided with a control unit, and the control unit is electrically connected to the driving member 41, the fixed electrode 60, the first detecting member 70, the second detecting member, the second coil, and other energized components, and is capable of controlling the actions of the components, and coordinating the movements of the components through the control system. For example, when the unlocking mechanism is inserted into the lock cylinder, the second coil performs identity authentication on the lock cylinder, and the authentication controls the fixed electrode 60 to be electrified through the rear control component so that the iron core 51 magnetically unlocks the authorized marble of the lock cylinder; upon receiving an unlock or lock command, the control assembly controls the actuation of the drive member 41 to effect a change in the position of the unlocking plate 21, and so on.

It should be noted that, in the above embodiments, a plurality refers to at least two.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. the problem of low safety of a computer key in the prior art is solved;

2. the influence of external misoperation on the unlocking key is effectively prevented, the unlocking piece component is prevented from being ejected out when the unlocking key is in a non-working state, and the carrying safety and the use convenience of the unlocking key are improved;

3. the authorization mode is simple and effective, and the interference of external and internal action parts is avoided;

4. the problem that the blade key cannot be automatically retracted when exposed, the appearance is influenced, the use safety is low and the problem that an authorization mechanism occupies a large space when sliding along with the unlocking plate component is solved;

5. the authorization component and the driving component are not exposed, so that the appearance consistency is ensured, the structure is compact, the control is convenient, the miniaturization of products is facilitated, and the unlocking key is suitable for occasions with smaller unlocking key thickness.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An unlocking mechanism, comprising:

a housing (10);

an unlocking tab assembly (20), the unlocking tab assembly (20) being telescopically disposed on the housing (10) and having a working position extending out of the housing (10) and a retracted position retracted into the housing (10);

the screw rod (30) is in threaded transmission fit with the unlocking piece assembly (20) and can drive the unlocking piece assembly (20) to move between the working position and the retracted position;

the driving assembly (40) is in driving connection with the screw (30) and can drive the screw (30) to rotate so as to drive the unlocking piece assembly (20) to move between the working position and the retracted position;

the authorization component (50) is arranged on the unlocking piece component (20) and moves synchronously with the unlocking piece component (20), and the authorization component (50) can unlock the lock cylinder through magnetic force;

the lock cylinder comprises a fixed electrode (60), wherein the fixed electrode (60) is arranged in a shell (10) and can be electrically connected with or separated from an authorized component (50), when the unlocking piece component (20) is positioned at the retraction position, the authorized component (50) is separated from the fixed electrode (60), the authorized component (50) is not electrified and cannot unlock the lock cylinder, when the unlocking piece component (20) is positioned at the working position, the authorized component (50) is electrically connected with the fixed electrode (60), and magnetic force is generated after the authorized component (50) is electrified so as to unlock the lock cylinder.

2. The unlocking mechanism according to claim 1, wherein the drive assembly (40) comprises:

the screw (30) is sleeve-shaped and sleeved outside the driving piece (41);

the shaft sleeve (42), the shaft sleeve (42) with the output shaft of driving piece (41), noncircular via hole (31) have been seted up to one end of screw rod (30), shaft sleeve (42) are noncircular and hold in noncircular via hole (31), and can extrude noncircular via hole (31) lateral wall is in order to drive screw rod (30) rotate.

3. The unlocking mechanism according to claim 2, wherein the driving assembly (40) further comprises a fixing frame (43), the fixing frame (43) is fixedly sleeved outside the driving piece (41) and located between the driving piece (41) and the screw rod (30), one end, away from the shaft sleeve (42), of the fixing frame (43) is provided with a limiting protrusion (431), the shell (10) is provided with a rib (11), the limiting protrusion (431) is abutted with the rib (11) to prevent circumferential rotation of the fixing frame (43), one end, away from the shaft sleeve (42), of the screw rod (30) is abutted on the limiting protrusion (431) or the rib (11), and the inner wall of the screw rod (30) is provided with a limiting rib abutted with the end face, close to the limiting protrusion (431), of the shaft sleeve (42).

4. An unlocking mechanism according to claim 3, wherein the housing (10) has a positioning post (12), the shaft sleeve (42) is rotatably sleeved outside the positioning post (12), the positioning post (12) is provided with a central hole, and the output shaft of the driving member (41) can extend into the central hole.

5. The unlocking mechanism according to claim 1, wherein the unlocking tab assembly (20) comprises:

-an unlocking tab (21), said unlocking tab (21) having a mechanical tooth form cooperating with said lock cylinder, said authorization assembly (50) being provided on said Jie Suopian (21);

the nut (22) is connected with the unlocking piece (21) and moves synchronously, threads on the side part of the nut (22) are meshed with threads of the screw (30), and the unlocking piece (21) is driven to extend or retract from the shell (10) under the rotation of the screw (30).

6. Unlocking mechanism according to claim 1, characterized in that the thread angle of the screw (30) is smaller than the friction angle.

7. The unlocking mechanism according to claim 1, wherein the authorization assembly (50) comprises:

an iron core (51), wherein the unlocking piece (21) is provided with a containing groove (211), and the iron core (51) is arranged in the containing groove (211);

a first coil (52), wherein the first coil (52) is arranged in the accommodating groove (211) and is electrically connected with the iron core (51);

and a probe (53), wherein the probe (53) is electrically connected with the first coil (52), and one end of the probe (53) protrudes out of the accommodating groove (211) and can be electrically connected with or separated from the fixed electrode (60).

8. The unlocking mechanism according to claim 1, wherein the housing (10) comprises:

the unlocking device comprises a bracket (13), wherein the bracket (13) is provided with an accommodating area for accommodating the unlocking piece assembly (20), a slideway (131) is arranged on the side wall of the accommodating area, the unlocking piece assembly (20) is provided with a convex rib (23), and the convex rib (23) stretches into the slideway (131) and slides in the slideway (131);

and the end cover (14) is connected with the bracket (13) and is used for jointly surrounding and fixing the unlocking piece assembly (20) and the driving assembly (40) with the bracket (13).

9. The unlocking mechanism according to claim 8, wherein the end cover (14) is provided with a wire passing hole (141), a rib (11) is arranged on one side of the end cover (14) facing the driving assembly (40), and the rib (11) is positioned on the outer side of the driving assembly (40) and blocks the driving assembly (40) from rotating integrally.

10. The unlocking mechanism of claim 1, further comprising:

a first detection member (70), the first detection member (70) being located within the housing (10) and being capable of detecting the position of the unlocking tab assembly (20) to determine the state of the unlocking tab assembly (20);

the second detection piece is positioned at one end of the shell (10) close to the lock cylinder and can detect magnetic flux change in the process of rotating and unlocking the unlocking mechanism so as to determine the unlocking and locking state of the lock cylinder;

the second coil is positioned at one end of the shell (10) close to the lock cylinder and can supply power, collect codes and communicate with the lock cylinder.

11. An unlocking key comprising the unlocking mechanism according to any one of claims 1 to 10.