CN114550347A

CN114550347A - Unlocking mechanism and unlocking key

Info

Publication number: CN114550347A
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: 2022-05-27
Anticipated expiration: 2040-11-26
Also published as: CN114550347B

Abstract

The invention provides an unlocking mechanism and an unlocking key. Wherein, release mechanism includes: a housing; an unlocking blade assembly having an operating position extending out of the housing and a retracted position retracted into the housing; the screw is in threaded transmission fit with the unlocking sheet assembly and can drive the unlocking sheet 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 assembly and the unlocking piece assembly synchronously move, and the authorization assembly can unlock the lock cylinder through magnetic force; the fixed electrode is arranged in the shell and can be electrically connected with or separated from the authorization assembly, when the unlocking sheet assembly is located at the withdrawing position, the authorization assembly is separated from the fixed electrode and is not electrified, when the unlocking sheet assembly is located at the working position, the authorization assembly is electrically connected with the fixed electrode, and magnetic force is generated after the authorization assembly is electrified. The invention solves the problem of low security 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 anti-error safety, computer keys have irreplaceable status. The computer key and the lock unlocking process are directly related to an unlocking mechanism, and in the field of anti-error safety, the unlocking mechanism is mainly characterized by a key sheet action mechanism and an authorization mechanism.

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

The authorization method in the computer key can be divided into contact type 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 be close to or far away from the induction element to form a non-contact authorization mechanism. In the existing mode, in the system forming the authorization mechanism, the key parts of the system and the key parts generate relative motion, and the precision requirement on the parts is high. There is a higher risk of failure and a relatively higher cost.

The existing 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 return spring and the clamping block, the key is locked in the key handle when unlocking is not needed, and the key is released from the key handle when unlocking is needed. According to the scheme, the key sheet rotating and folding technology is applied to unlocking keys, the structure is simple, the use is convenient, and the problem that the key is popped up by misoperation of the button is not solved yet.

Disclosure of Invention

The invention mainly aims to provide an unlocking mechanism and an unlocking key, and aims to solve the problem that the security of a computer key in the prior art is low.

In order to achieve the above object, according to one aspect of the present invention, there is provided an unlocking mechanism including: a housing; the unlocking sheet assembly is telescopically arranged on the shell 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 sheet assembly and can drive the unlocking sheet 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 so as to drive the unlocking sheet assembly to move between the working position and the withdrawing position; the authorization assembly is arranged on the unlocking sheet assembly and synchronously moves with the unlocking sheet assembly, and the authorization assembly can unlock the lock cylinder through magnetic force; the fixed electrode is arranged in the shell and can be electrically connected with or separated from the authorization assembly, when the unlocking sheet assembly is located at the withdrawing position, the authorization assembly is separated from the fixed electrode, the authorization assembly is not electrified and cannot unlock the lock cylinder, when the unlocking sheet assembly is located at the working position, the authorization assembly is electrically connected with the fixed electrode, and magnetic force is generated after the authorization assembly is electrified to unlock the lock cylinder.

Further, the drive assembly includes: the screw rod is in a sleeve shape and is sleeved outside the driving piece; the axle sleeve, the output shaft of axle sleeve and driving piece, the non-circular via hole has been seted up to the one end of screw rod, and the axle sleeve is the non-circular and holds in the non-circular via hole to can extrude the lateral wall of non-circular via hole, rotate in order to drive the screw rod.

Furthermore, the driving assembly further comprises a fixing frame, the fixing frame is fixedly sleeved on the outer side of the driving piece and located between the driving piece and the screw rod, one end, far away from the shaft sleeve, of the fixing frame is provided with a limiting protrusion, the shell is provided with ribs, the limiting protrusion is abutted to the ribs to block circumferential rotation of the fixing frame, one end, far away from the shaft sleeve, of the screw rod is abutted to the limiting protrusion or the ribs, the inner wall of the screw rod is provided with limiting ribs, and the limiting ribs are abutted to the end face, close to the limiting protrusion, of the shaft sleeve.

Furthermore, the shell is provided with a positioning column, the shaft sleeve is rotatably sleeved outside the positioning column, a center hole is formed in the positioning column, and the output shaft of the driving part can extend into the center hole.

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

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

Further, the authorization component includes: the unlocking sheet 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 unlocking piece assembly comprises a bracket, a locking piece and a locking piece, wherein the bracket is provided with an accommodating area for accommodating the unlocking piece assembly, the side wall of the accommodating area is provided with a slideway, and the unlocking piece assembly is provided with a convex rib which extends into the slideway and slides in the slideway; and the end cover is connected with the bracket and surrounds and fixes the unlocking sheet assembly and the driving assembly together with the bracket.

Furthermore, the end cover is provided with a line passing hole, one side of the end cover, which faces the driving assembly, is provided with ribs, and the ribs are located on the outer side of the driving assembly and block the driving assembly from rotating integrally.

Further, the unlocking mechanism further comprises: 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, which is close to the lock cylinder, and can detect the magnetic flux change in the rotating and unlocking process of the unlocking mechanism so as to determine the locking and unlocking states of the lock cylinder; and the second coil is positioned at one end of the shell, which is close to the lock cylinder, and can supply power, acquire 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 applying the technical scheme, the screw is in threaded fit with the unlocking sheet assembly, when the lock cylinder is unlocked by using the unlocking mechanism, the screw is driven to rotate by the driving assembly, the screw can drive the unlocking sheet assembly to extend out of the shell under the action of threaded fit so as to be switched to a working position, and then unlocking can be carried out by using the unlocking mechanism; when the unlocking mechanism is not used, the driving assembly drives the screw rod to rotate reversely, and the screw rod drives the unlocking sheet assembly to slide reversely, so that the unlocking sheet assembly retracts into the shell and is switched to a retracting position. The cooperation between the subassembly of authorizing and the fixed electrode realizes unblocking to the mandate pellet shot from a slingshot of lock core simultaneously, specifically speaking, when the release piece subassembly is located the position of withdrawing, separation between the subassembly of authorizing and the fixed electrode, the subassembly of authorizing does not circular telegram this moment, just can't produce magnetism, only when the release piece subassembly is located operating position, the electricity is connected between the subassembly of authorizing and the fixed electrode, fixed electrode is the subassembly power supply of authorizing this moment, authorizes the subassembly and just can produce magnetic force, can drive the bullet motion of authorizing through magnetic force, realize authorizing the pellet shot from a slingshot unblock. The above-mentioned authorization subassembly that the mode of setting up is authorized through the automatic flexible cooperation non-contact response of unblock piece subassembly, on the one hand effectively prevent the influence of external maloperation to the unlocking key, when avoiding non-operating condition, the unblock piece subassembly pops out, improve the security of carrying and the convenience in use of unlocking key, on the other hand authorization mode is simple effective, avoid external and inside action to disturb, avoid the drive assembly malfunction to lead to authorizing the inefficacy simultaneously, thereby effectively solve the unlocking key and expose can not automatic retraction, influence the outward appearance, the problem that the safety in utilization is low, and the problem that occupation space is big when authorizing the subassembly to slide along with the unblock piece subassembly. And the authorization assembly and the driving assembly are not exposed, the appearance consistency is ensured, the structure is compact, the control is convenient, the miniaturization of the product is facilitated, and the unlocking key is suitable for occasions with small thickness.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic view of the release mechanism of the present invention in the locked configuration;

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

FIG. 3 is a schematic view of the drive assembly of the release mechanism of FIG. 1 engaged with a threaded rod;

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

FIG. 5 is a schematic view of the release plate assembly and authorization assembly of the release mechanism of FIG. 1;

FIG. 6 is 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 of FIG. 6;

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

Wherein the figures include the following reference numerals:

10. a housing; 11. ribs; 12. a positioning column; 13. a support; 131. a slideway; 132. unlocking the hole; 14. an end cap; 141. a wire passing hole; 20. unlocking the sheet assembly; 21. unlocking the plate; 211. accommodating a tank; 22. a nut; 23. a rib is protruded; 30. a screw; 31. a non-circular via; 40. a drive assembly; 41. a drive member; 42. a shaft sleeve; 43. a fixed mount; 431. a limiting bulge; 50. an authorization component; 51. an iron core; 52. a first coil; 53. a probe; 60. a fixed electrode; 70. a first detecting member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, 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.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The invention provides an unlocking mechanism and an unlocking key, aiming at solving the problem that the security of a computer key in the prior art is low. The unlocking key has an unlocking mechanism described below.

1-8, the unlocking mechanism comprises a shell 10, an unlocking sheet assembly 20, a screw 30, a driving assembly 40, an authorization assembly 50 and a fixed electrode 60, wherein the unlocking sheet assembly 20 is telescopically arranged on the shell 10 and has an operating position extending out of the shell 10 and a retracted position retracting into the shell 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 the working position and the withdrawing 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 sheet assembly 20 to move between the working position and the retracted position; the authorization assembly 50 is arranged on the unlocking sheet assembly 20 and moves synchronously with the unlocking sheet 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 piece assembly 20 is located at the retracted position, the authorization assembly 50 is separated from the fixed electrode 60, the authorization assembly 50 is not powered and cannot unlock the lock cylinder, when the unlocking piece assembly 20 is located at the operating position, the authorization assembly 50 is electrically connected to the fixed electrode 60, and after the authorization assembly 50 is powered, a magnetic force is generated to unlock the lock cylinder.

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

In the present embodiment, as shown in fig. 3, the driving assembly 40 includes a driving member 41 and a shaft sleeve 42, the screw 30 of the present embodiment is in a sleeve shape, and is sleeved on the outside of the driving member 41, and the outside of the screw 30 is provided with a thread; the shaft sleeve 42 is connected with an output shaft of the driving part 41, one end of the screw rod 30 is provided with the noncircular through hole 31, the outer wall of the shaft sleeve 42 is noncircular and is matched with the noncircular through hole 31 in shape, and the shaft sleeve 42 is accommodated in the noncircular through hole 31, so that when the driving part 41 drives the shaft sleeve 42 to rotate, the outer side wall of the shaft sleeve 42 can extrude the side wall of the noncircular through hole 31, the screw rod 30 is driven to rotate together, and the unlocking plate assembly 20 can move between the working position and the withdrawing position. Through the arrangement, the space occupied by the screw rod 30 is reduced on the premise of ensuring reliable driving, the size of the unlocking key can be further reduced, and the device is beneficial to miniaturization. Of course, the screw 30 may be disposed such that the rod is disposed on the side of the driving member 41, or other arrangements may be adopted as needed.

In this embodiment, the driving assembly 40 further includes a fixing frame 43, the driving element 41 is a driving motor, the fixing frame 43 is in a long sleeve shape, and is sleeved outside the driving element 41 and fixedly disposed relative to the driving element 41, the fixing frame 43 is located between the driving element 41 and the screw 30, when the screw 30 rotates, the shell of the driving element 41 and the fixing frame 43 do not move, and the output shaft of the driving element 41, the shaft sleeve 42, and the screw 30 all rotate synchronously. As shown in fig. 2, 3, 6 and 8, the fixing frame 43 has a limiting protrusion 431 at an end away from the shaft sleeve 42, the housing 10 has a rib 11, the limiting protrusion 431 and the rib 11 both extend along the circumferential direction of the driving element 41, and both extend into a gap between them, specifically, extend along the circumferential direction of the driving element 41, the limiting protrusion 431 and the rib 11 both have an arc shape, and they are butted to form a complete circular ring, so that the limiting protrusion 431 and the side surface of the rib 11 abut against each other for stopping, thereby preventing the circumferential rotation of the fixing frame 43.

And one end of the screw 30 far away from the sleeve 42 abuts against the limiting protrusion 431 or the rib 11 so as to limit the axial movement of the screw 30 in one direction, and the inner wall of the screw 30 is provided with a limiting rib which abuts against the end surface of the sleeve 42 close to the limiting protrusion 431 so as to limit the axial movement of the screw 30 in the other direction. Thus, the limiting protrusion 431 or the rib 11 cooperates with the limiting rib to limit the axial direction of the screw 30, and the screw 30 can only be driven by the driving member 41 to rotate, so as to ensure reliable driving of the unlocking sheet assembly 20.

Optionally, the housing 10 has a positioning column 12, and the shaft sleeve 42 is rotatably sleeved outside the positioning column 12, so as to limit the rotation of the shaft sleeve 42. Meanwhile, a center hole is formed in the positioning column 12 and is aligned with the through hole of the shaft sleeve 42, and the output shaft of the driving part 41 can penetrate through the through hole of the shaft sleeve 42 and extend into the center hole, so that reliable driving between the driving part 41 and the shaft sleeve 42 is guaranteed.

As shown in fig. 1, 2 and 4, the unlocking plate assembly 20 comprises an unlocking plate 21 and a nut 22, the unlocking plate 21 has a mechanical tooth shape matched with the lock cylinder and can extend out of or retract into the shell 10, and the authorization assembly 50 is arranged on the unlocking plate 21 and moves in a telescopic manner synchronously along with the unlocking plate 21; the nut 22 is connected with the unlocking sheet 21 far away from the end extending out of the shell 10, specifically, the end face of the end of the unlocking sheet 21 not extending out of the shell 10 is provided with a mounting hole, the nut 22 is provided with a through hole, and the through hole and the mounting hole are arranged in the nut 22 in a penetrating mode through a screw and other parts, so that the nut 22 and the unlocking sheet 21 are fixedly connected together, and the two synchronously move. Of course, in addition to the embodiment, other methods such as forming holes in the side surfaces of the unlocking piece 21 and the nut 22 in the radial direction and fixing them by a pin may be used. 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 drives the nut 22 and the unlocking piece 21 to move telescopically, thereby extending or retracting the housing 10.

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

As shown in fig. 5, the authorizing assembly 50 includes an iron core 51, a first coil 52 and a probe 53, the unlocking piece 21 has a receiving groove 211, and the iron core 51 is disposed in the receiving groove 211; the first coil 52 is disposed in the receiving groove 211 and surrounds the outer side of the core 51, one end of the first coil 52 is electrically connected to the core 51, the other end of the first coil 52 is electrically connected to the probe pin 53, and one end of the probe pin 53 extends out of the receiving groove 211 and can be electrically connected to or separated from the fixed electrode 60. Thus, when the unlocking plate assembly 20 is located at 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, the authorized marble of the lock core can be attracted or repelled through the action of the magnetic force, the authorized marble is unlocked, when the unlocking plate 21 is located at the withdrawing position, the probe 53 is separated from the fixed electrode 60, the first coil 52 and the iron core 51 are free of electricity, no magnetism is generated, and the authorized marble cannot be attracted or repelled.

The two fixed electrodes 60 of the present embodiment are connected to the positive and negative electrodes of the external power source through the wires, respectively, and the two probes 53 are also provided and correspond to the two fixed electrodes 60, respectively, considering that the iron core 51 is to extend out of the housing 10 to be matched with the authorized marbles, and the probes 53 are matched with the fixed electrodes 60 in the housing 10, so as shown in fig. 5, the accommodating groove 211 of the present embodiment is provided in an inverted v shape, two ends of the lower portion of the accommodating groove are provided with one probe 53, respectively, and the bent portion of the upper portion is provided with the iron core 51, which are electrically connected through the first coil 52. Of course, the specific arrangement of the iron core 51, the first coil 52 and the probe 53 may be changed as required, as long as the iron core can be reliably matched with the fixed electrode 60 and the authorized marbles.

As shown in fig. 6 to 8, the casing 10 includes the bracket 13 and the end cover 14, the bracket 13 has a holding area for holding the unlocking sheet assembly 20, the holding area is a long strip, the slide 131 is provided on the inner side wall thereof, an unlocking hole 132 for penetrating through the unlocking sheet 21 is provided on one end surface of the holding area, correspondingly, the side wall of the unlocking sheet 21 of the unlocking sheet assembly 20 has a convex rib 23, the convex rib 23 extends into the slide 131, so that the unlocking sheet 21 can only slide in the slide 131 and cannot rotate, thereby preventing the screw 30 from driving the unlocking sheet assembly 20 to rotate, and ensuring the reliability of the movement of the unlocking sheet assembly 20. The end cap 14 is connected to the bracket 13, and is used for shielding one end of the accommodating area away from the unlocking hole 132, so as to limit the unlocking plate assembly 20 in the accommodating area and prevent the unlocking plate assembly 20 from being released, and the end cap 14 is also matched with the bracket 13 to surround two opposite sides of the driving assembly 40, so as to fix the driving assembly 40 on the housing 10. The overall structure of the housing 10 may adopt a full-enclosure or a half-enclosure or a combination of the two, and the unlocking key may be provided with an outer shell outside the unlocking mechanism as required on the basis of the unlocking mechanism.

Optionally, the end cap 14 is opened with a wire through hole 141 for leading out a wire connected to the driving member 41 or the fixed electrode 60 for supplying power. The side, facing the driving assembly 40, of the end cover 14 is provided with the rib 11 matched with the limiting protrusion 431, the rib 11 is located on the fixing frame 43 of the driving assembly 40 and is circumferentially outside the limiting protrusion 431 in a staggered manner, and the rib 11 can avoid the driving assembly 40 from integrally rotating and can limit the screw 30 from moving along the axis.

In this embodiment, the unlocking mechanism further includes a first detecting member 70, a second detecting member and a second coil, 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 blade assembly 20 to determine the extended and retracted states of the unlocking blade 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 the magnetic steel in the lock cylinder, and detects the magnetic flux change in the rotating and unlocking process of the unlocking mechanism so as to determine the locking and unlocking states of the lock cylinder; the second coil is located at one end of the housing 10 close to the lock cylinder and can supply power, collect codes and communicate with the lock cylinder.

In addition, the unlocking mechanism may further include a control unit electrically connected to the electrically powered components such as the driving unit 41, the fixed electrode 60, the first detecting unit 70, the second detecting unit, and the second coil, and capable of controlling the movement of each component and coordinating the movement of each component with 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 after the authentication is passed, the control assembly controls the fixed electrode 60 to be electrified, so that the iron core 51 magnetically unlocks an authorized marble of the lock cylinder; after receiving an unlocking or locking command, the control assembly controls the driving member 41 to act, so as to change the position of the unlocking piece 21, and the like.

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

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

1. the problem of low security 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 sheet component is prevented from popping up 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 after being exposed out, the appearance is influenced, and the use safety is low is effectively solved, and the problem that the occupied space of an authorization mechanism is large when the authorization mechanism slides along with the unlocking sheet component is solved;

5. the authorization assembly and the driving assembly are not exposed, the appearance consistency is guaranteed, the structure is compact, the control is convenient, the miniaturization of products is facilitated, and the unlocking key is suitable for occasions with small thickness.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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 according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of 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 this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement 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);

the unlocking sheet assembly (20) is telescopically arranged on the shell (10) and has an operating position extending out of the shell (10) and a retracted position retracting into the shell (10);

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

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

an authorization assembly (50), wherein the authorization assembly (50) is arranged on the unlocking sheet assembly (20) and moves synchronously with the unlocking sheet assembly (20), and the authorization assembly (50) can unlock the lock cylinder through magnetic force;

the fixed electrode (60) is arranged in the shell (10) and can be electrically connected with or separated from the authorization component (50), when the unlocking sheet component (20) is located at the withdrawing position, the authorization component (50) is separated from the fixed electrode (60), the authorization component (50) is not electrified and cannot unlock the lock cylinder, when the unlocking sheet component (20) is located at the working position, the authorization component (50) is electrically connected with the fixed electrode (60), and after the authorization component (50) is electrified, magnetic force is generated to unlock the lock cylinder.

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

the screw rod (30) is in a sleeve shape and is sleeved on the outer side of the driving piece (41);

the shaft sleeve (42) is connected with the output shaft of the driving piece (41), one end of the screw rod (30) is provided with a non-circular through hole (31), the shaft sleeve (42) is non-circular and is contained in the non-circular through hole (31), and the side wall of the non-circular through hole (31) can be extruded to drive the screw rod (30) to rotate.

3. The delatch mechanism of claim 2 wherein the drive assembly (40) further includes a mounting bracket (43), the mounting bracket (43) being fixedly received on the outside of the drive member (41), and is positioned between the driving piece (41) and the screw rod (30), one end of the fixed frame (43) far away from the shaft sleeve (42) is provided with a limit bulge (431), the shell (10) is provided with a rib (11), the limiting bulge (431) is abutted with the rib (11), so as to prevent the circumferential rotation of the fixed frame (43), and one end of the screw rod (30) far away from the shaft sleeve (42) is abutted against the limiting bulge (431) or the rib (11), the inner wall of the screw rod (30) is provided with a limiting rib, and the limiting rib is abutted to the end face, close to the limiting protrusion (431), of the shaft sleeve (42).

4. The 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 plate assembly (20) comprises:

an unlocking plate (21), wherein the unlocking plate (21) is provided with a mechanical tooth shape matched with the lock cylinder, and the authorization assembly (50) is arranged on the unlocking plate (21);

nut (22), nut (22) with it connects to separate locking plate (21), and the two simultaneous movement, the screw thread of nut (22) lateral part with the thread engagement of screw rod (30), and drive under the rotation of screw rod (30) it stretches out or retracts to separate locking plate (21) casing (10).

6. The unlocking mechanism according to claim 1, characterized in that the lead 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), the unlocking piece (21) having an accommodating groove (211), the iron core (51) being disposed in the accommodating 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);

a probe (53), wherein the probe (53) is electrically connected with the first coil (52), and one end of the probe (53) extends 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, characterized in that the housing (10) comprises:

the support (13) is provided with a containing area for containing the unlocking sheet assembly (20), a slide way (131) is formed in the side wall of the containing area, the unlocking sheet assembly (20) is provided with a convex rib (23), and the convex rib (23) extends into the slide way (131) and slides in the slide way (131);

the end cover (14), the end cover (14) is connected with the bracket (13), and surrounds and fixes the unlocking sheet component (20) and the driving component (40) together 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 component (40), and the rib (11) is located on the outer side of the driving component (40) and blocks the driving component (40) from rotating integrally.

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

a first detector (70), the first detector (70) being located within the housing (10) and being capable of detecting the position of the unlocking plate assembly (20) to determine the status of the unlocking plate assembly (20);

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

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

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