CN213807083U

CN213807083U - Key unlocking mechanism

Info

Publication number: CN213807083U
Application number: CN202022413993.9U
Authority: CN
Inventors: 陈高盛
Original assignee: Shenzhen Zhongjingke Intelligent Technology Co ltd
Current assignee: Shenzhen Zhongjingke Intelligent Technology Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-27
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a key unlocking mechanism, which comprises a lock box, a main bolt component, a main bolt shifting fork, an oblique bolt pushing sheet and a lock head; the main bolt assembly comprises a main bolt and a main bolt push plate, the main bolt push plate is provided with a first sliding groove and a chute, one end of a main bolt shifting fork is provided with a driving rod, an oblique bolt push sheet is provided with a second sliding groove and a third sliding groove, a bottom plate of the lock box is provided with a second sliding rod and a third sliding rod, one end of the third sliding groove is provided with a limiting groove, the side wall of the lock head extends to form a driving part, one side of the main bolt push plate is provided with a first boss for pushing the oblique bolt push sheet to wind the second sliding rod and enabling the third sliding rod to slide into the limiting groove, and one side of the main bolt push plate is provided with a second boss for pushing the oblique bolt push sheet to wind the second sliding rod and enabling the third sliding rod to be separated from the limiting groove; its advantages are that the drive part of lock head and the push piece of latch bolt are not separated from each other, so preventing the push piece from blocking the rotation of lock head.

Description

Key unlocking mechanism

Technical Field

The utility model belongs to the technical field of the electronic lock technique and specifically relates to a key unlocking mechanism.

Background

The existing electronic lock can be unlocked or locked by inserting a key into the lock from the outside of a door, when the key is rotated, the key drives the main bolt to be locked or unlocked through the lock, and the inclined bolt pushing piece can block the lock from rotating in the rotating process of the lock.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the deficiency of the prior art and providing a key unlocking mechanism.

The utility model discloses a technical scheme:

a key unlock mechanism comprising: the lock comprises a lock box, a main bolt assembly, a main bolt shifting fork, an oblique bolt pushing sheet and a lock head; the lock box comprises a bottom plate and a side plate, the side plate is provided with a main tongue hole, the main tongue assembly comprises a main tongue and a main tongue push plate, the main tongue push plate is provided with a first sliding groove and a sliding groove, the first sliding groove is perpendicular to the side plate, a main tongue shifting fork is rotatably connected with the bottom plate, one end of the main tongue shifting fork is provided with a driving rod, the driving rod is positioned in the sliding groove and used for driving the main tongue push plate to move along the first sliding groove direction, an oblique tongue push sheet is provided with a second sliding groove and a third sliding groove, the second sliding groove and the third sliding groove are respectively parallel to the side plate, the bottom plate is provided with a second sliding rod sliding along the second sliding groove and a third sliding rod sliding along the third sliding groove, one end of the third sliding groove close to the second sliding groove is provided with a limiting groove, the limiting groove and the third sliding groove are included angle, a lock head is rotatably connected with the bottom plate, a side wall of the lock head extends to be provided with a driving part, and the driving part is used for driving the main tongue shift fork to rotate and driving the oblique tongue push sheet to slide along the second sliding groove and the third sliding groove The groove slides, a first boss used for pushing the latch tongue pushing sheet to wind the second slide bar and enabling the third slide bar to slide into the limiting groove is arranged on one side, away from the main tongue, of the main tongue pushing plate, a second boss used for pushing the latch tongue pushing sheet to wind the second slide bar and enabling the third slide bar to be separated from the limiting groove is arranged on one side, close to the main tongue, of the main tongue pushing plate, and the latch tongue pushing sheet is located between the first boss and the second boss;

the lock head is rotated along one direction, the driving part of the lock head drives the main lock tongue shifting fork to rotate along one direction, the main lock tongue shifting fork pushes the main lock tongue assembly to move towards the outer side of the lock box, the main lock tongue is locked, meanwhile, after the first boss is contacted with the latch bolt pushing piece, the first boss pushes the latch bolt pushing piece to rotate around the second slide bar and enable the third slide bar to slide into the limiting groove, and the driving part of the lock head and the latch bolt pushing piece are avoided;

the lock head is rotated along another direction, the driving part of the lock head drives the main spring bolt shifting fork to rotate along another direction, the main spring bolt shifting fork pushes the main spring bolt assembly to move towards the inner side direction of the lock box, the main spring bolt is unlocked, meanwhile, after the second boss is contacted with the oblique spring bolt pushing piece, the second boss pushes the oblique spring bolt pushing piece to rotate around the second slide bar and enable the third slide bar to be separated from the limiting groove and slide into the third sliding groove, the lock head continues to be rotated, and the driving part of the lock head drives the oblique spring bolt pushing piece to slide along the second sliding groove and the third sliding groove.

One preferred scheme is that an open slot is arranged on one side of the main lock tongue shifting fork close to the lock head, when the lock head rotates along one direction, a driving part of the lock head slides into the open slot and drives the main lock tongue shifting fork to rotate along one direction, and then the driving part of the lock head is separated from the open slot; when the lock head rotates along the other direction, the driving part of the lock head slides into the opening groove and drives the main bolt shifting fork to rotate along the other direction, and then the driving part of the lock head is separated from the opening groove.

One preferred scheme is that one side of the latch bolt push sheet close to the lock head is provided with a driving part, when the lock head rotates along the other direction, the driving part of the lock head slides into the open slot and drives the main lock bolt shifting fork to rotate along the other direction, and after the driving part of the lock head is separated from the open slot, the driving part of the lock head drives the latch bolt push sheet to slide along the second sliding slot and the third sliding slot through the driving part.

One preferred scheme is that the key unlocking mechanism further comprises an inclined tongue shifting piece and an inclined tongue assembly, the inclined tongue assembly comprises an inclined tongue, an inclined tongue rod, a positioning piece, a guide block and a compression spring, a side plate of the lock box is provided with an inclined tongue hole, the inclined tongue is movably arranged in the inclined tongue hole and is fixedly connected with one end of the inclined tongue rod, the positioning piece is fixed in the lock box, a guide groove is formed in the positioning piece, the other end of the inclined tongue rod sequentially penetrates through the compression spring and the guide groove and then is rotatably connected with the guide block, the compression spring is in a compressed state, and the guide block can linearly move back and forth along with the lock tongue rod; the oblique tongue plectrum rotates and sets up in the lock box, the oblique tongue plectrum is located between oblique tongue subassembly and the main tongue subassembly, the oblique tongue plectrum includes first unlocking sheet and second unlocking sheet, first unlocking sheet is close to the oblique tongue pushing jack and contacts with the oblique tongue pushing jack, the second unlocking sheet stretches into between locating piece and the guide block, and it unblanks to drive the oblique tongue through driving the rotation of oblique tongue plectrum when the oblique tongue plectrum.

Synthesize above-mentioned technical scheme, the beneficial effects of the utility model: the key is rotated anticlockwise, the key drives the driving part of the lock head to rotate anticlockwise, the driving part drives the main spring bolt shifting fork to rotate clockwise, and the main spring bolt shifting fork drives the main spring bolt assembly to extend out of the lock box, so that the main spring bolt is locked. At the moment, in the process that the main tongue component extends out of the lock box, the first lug boss of the main tongue component pushes the oblique tongue pushing piece to rotate around the second sliding rod and enable the third sliding rod to slide into the limiting groove, and the driving part of the lock head and the oblique tongue pushing piece are avoided; the key is rotated clockwise, the key drives the lock head to drive the lock head to rotate clockwise, and the latch bolt pushing piece has a rotation angle, so that the driving part of the lock head cannot contact the latch bolt pushing piece until the driving part rotates to be in contact with the main lock bolt shifting fork, and the main lock bolt shifting fork is driven to rotate anticlockwise. In the process that the main bolt assembly retracts into the lock box, the second boss of the main bolt assembly pushes the latch bolt push piece to rotate around the second slide rod and enable the third slide rod to be separated from the limiting groove and slide into the third slide groove, at the moment, the key continues to rotate, and the key drives the driving part of the lock head to push the latch bolt push piece to move along the second slide groove and the third slide groove.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of the present invention showing the locking of the main bolt and the latch bolt;

FIG. 2 is a first internal perspective view of the present invention when the main bolt and the latch bolt are locked;

FIG. 3 is a second internal perspective view of the present invention when the main bolt and the latch bolt are locked;

FIG. 4 is a first internal perspective view of the present invention when the main bolt is unlocked and the oblique bolt is locked;

FIG. 5 is a second internal perspective view of the present invention when the main bolt is unlocked and the oblique bolt is locked;

FIG. 6 is a perspective view of the present invention when the main bolt and the latch bolt are unlocked;

fig. 7 is a perspective view of the latch tongue pushing piece of the present invention.

Detailed Description

For the purpose of illustrating the spirit and purposes of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 7, a key unlocking mechanism includes: the lock comprises a lock box 10, a main bolt assembly 20, a main bolt shifting fork 30, an oblique bolt pushing sheet 40 and a lock head 50; the lock box 10 comprises a bottom plate 11 and a side plate 12, the side plate 12 is provided with a main tongue hole, the main tongue assembly 20 comprises a main tongue 21 and a main tongue push plate 22, the main tongue push plate 22 is provided with a first slide groove 211 and a slide groove 212, the first slide groove 211 is perpendicular to the side plate 12, the main tongue shift fork 30 is rotatably connected with the bottom plate 11, one end of the main tongue shift fork 30 is provided with a drive rod 31, the drive rod 31 is positioned in the slide groove 212 and used for driving the main tongue push plate 22 to move along the first slide groove 211, the inclined tongue push plate 40 is provided with a second slide groove 41 and a third slide groove 42, the second slide groove 41 and the third slide groove 42 are respectively parallel to the side plate 12, the bottom plate 11 is provided with a second slide rod 13 sliding along the second slide groove 41 and a third slide rod 14 sliding along the third slide groove 42, one end of the third slide groove 42 close to the second slide groove 41 is provided with a limit groove 43, and the limit groove 43 is an included angle with the third slide groove 42, the lock head 50 is rotatably connected with the bottom plate 11, a driving part 51 extends from the side wall of the lock head 50, the driving part 51 is used for driving the main lock bolt shifting fork 30 to rotate and driving the latch bolt pushing sheet 40 to slide along the second sliding groove 41 and the third sliding groove 42, a first boss 213 used for pushing the latch bolt pushing sheet 40 to wind the second sliding rod 13 and enabling the third sliding rod 14 to slide into the limiting groove 43 is arranged on one side, away from the main bolt 21, of the main bolt pushing plate 22, a second boss 214 used for pushing the latch bolt pushing sheet 40 to wind the second sliding rod 13 and enabling the third sliding rod 14 to be separated from the limiting groove 43 is arranged on one side, close to the main bolt 21, of the main bolt pushing plate 22, and the latch bolt pushing sheet 40 is located between the first boss 213 and the second boss 214;

as shown in fig. 1 to 7, the lock head 50 is rotated in one direction, the driving part 51 of the lock head 50 drives the main bolt shift fork 30 to rotate in one direction, the main bolt shift fork 30 pushes the main bolt assembly 20 to move in the direction of the outer side of the lock box 10, the main bolt 21 is locked, and meanwhile, after the first boss 213 contacts the bolt push piece 40, the first boss 213 pushes the bolt push piece 40 to rotate around the second slide bar 13 and slide the third slide bar 14 into the limiting groove 43, the driving part 51 of the lock head 50 and the bolt push piece 40 are avoided;

as shown in fig. 1 to 7, the lock head 50 is rotated in another direction, the driving part 51 of the lock head 50 drives the main bolt shift fork 30 to rotate in another direction, the main bolt shift fork 30 pushes the main bolt assembly 20 to move towards the inner side of the lock box 10, the main bolt 21 is unlocked, meanwhile, after the second boss 214 contacts with the latch bolt push plate 40, the second boss 214 pushes the latch bolt push plate 40 to rotate around the second slide bar 13 and make the third slide bar 14 disengage from the limiting groove 43 and slide into the third slide groove 42, the lock head 50 is rotated continuously, and the driving part 51 of the lock head 50 drives the latch bolt push plate 40 to slide along the second slide groove 41 and the third slide groove 42.

As shown in fig. 1 to 7, in the utility model, the key is rotated counterclockwise, the key drives the driving part 51 of the lock head 50 to rotate counterclockwise, the driving part 51 drives the main bolt fork 30 to rotate clockwise, the main bolt fork 30 drives the main bolt assembly 20 to extend out of the lock box 10, thereby realizing that the main bolt 21 is locked. At this time, in the process that the main tongue assembly 20 extends out of the lock box 10, the first boss 213 of the main tongue assembly 20 pushes the latch tongue pushing piece 40 to rotate around the second sliding rod 13 and make the third sliding rod 14 slide into the limiting groove 43, so that the driving portion 51 of the lock head 50 and the latch tongue pushing piece 40 are avoided.

As shown in fig. 1 to 7, when the key is rotated clockwise, the key drives the driving portion 51 of the lock 50 to rotate clockwise, and the latch bolt 40 has a rotation angle, so that the driving portion 51 of the lock 50 does not contact the latch bolt 40 until the driving portion 51 rotates to contact the main bolt fork 30, and the main bolt fork 30 is driven to rotate counterclockwise. During the process of retracting the main tongue assembly 20 into the lock box 10, the second boss 214 of the main tongue assembly 20 pushes the latch tongue pushing piece 40 to rotate around the second slide bar 13 and make the third slide bar 14 disengage from the limiting groove 43 and slide into the third slide groove 42, at this time, the key continues to be rotated, and the key drives the driving portion 51 of the lock head 50 to push the latch tongue pushing piece 40 to move along the second slide groove 41 and the third slide groove 42.

As shown in fig. 1 to 7, an open slot 32 is formed in a side of the main bolt fork 30 close to the lock head 50, and when the lock head 50 rotates in one direction, the driving part 51 of the lock head 50 slides into the open slot 32 and drives the main bolt fork 30 to rotate in one direction, and then the driving part 51 of the lock head 50 is separated from the open slot 32; when the locking head 50 rotates in the other direction, the driving part 51 of the locking head 50 slides into the opening slot 32 and drives the main bolt fork 30 to rotate in the other direction, and then the driving part 51 of the locking head 50 is separated from the opening slot 32.

As shown in fig. 1 to 7, an actuating portion is disposed on a side of the latch tongue 40 close to the lock head 50, when the lock head 50 rotates in another direction, the driving portion 51 of the lock head 50 slides into the opening slot 32 and drives the main latch tongue shift fork 30 to rotate in another direction, and then after the driving portion 51 of the lock head 50 disengages from the opening slot 32, the driving portion 51 of the lock head 50 drives the latch tongue 40 to slide along the second sliding slot 41 and the third sliding slot 42 through the actuating portion.

As shown in fig. 1 to 7, the key unlocking mechanism further includes an inclined tongue pulling piece 60 and an inclined tongue assembly 70, the inclined tongue assembly 70 includes an inclined tongue 71, an inclined tongue rod 72, a positioning piece 73, a guide block 74 and a compression spring 75, the side plate 12 of the lock box 10 is provided with an inclined tongue hole, the inclined tongue 71 is movably arranged in the inclined tongue hole and is fixedly connected with one end of the inclined tongue rod 72, the positioning piece 73 is fixed in the lock box 10, the positioning piece 73 is provided with a guide groove, the other end of the inclined tongue rod 72 passes through the compression spring 75 and the guide groove in sequence and then is rotatably connected with the guide block 74, the compression spring 75 is in a compressed state, and the guide block 74 can linearly move back and forth along with the inclined tongue rod; the latch bolt shifting piece 60 is rotatably arranged in the lock box 10, the latch bolt shifting piece 60 is positioned between the latch bolt assembly 70 and the main bolt assembly 20, the latch bolt shifting piece 60 comprises a first unlocking piece 61 and a second unlocking piece 62, the first unlocking piece 61 is close to the latch bolt pushing piece 40 and is in contact with the latch bolt pushing piece 40, the second unlocking piece 62 extends into a position between the positioning piece 73 and the guide block 74, and when the latch bolt shifting piece 60 drives the latch bolt 71 to unlock by driving the latch bolt shifting piece 60 to rotate.

As shown in fig. 1 to 7, the utility model discloses in, anticlockwise rotation key, the key drive the drive division 51 anticlockwise rotation of tapered end 50, until drive division 51 rotatory to the main spring bolt shift fork 30 in the open slot 32, drive main spring bolt shift fork 30 clockwise rotation, main spring bolt shift fork 30 drives main tongue subassembly 20 and stretches out toward lock box 10 outward to realize that main tongue 21 locks. At this time, in the process that the main tongue assembly 20 extends out of the lock box 10, the first boss 213 of the main tongue assembly 20 pushes the latch tongue pushing piece 40 to rotate around the second sliding rod 13 and make the third sliding rod 14 slide into the limiting groove 43, so that the driving portion 51 of the lock head 50 and the latch tongue pushing piece 40 are avoided.

As shown in fig. 1 to 7, when the key is rotated clockwise, the key drives the driving portion 51 of the lock head 50 to rotate clockwise, and the latch bolt pushing piece 40 has a rotation angle, so that the driving portion 51 of the lock head 50 does not contact the latch bolt pushing piece 40 until the driving portion 51 rotates into the opening slot 32 of the main bolt shifting fork 30, and drives the main bolt shifting fork 30 to rotate counterclockwise, and the main bolt shifting fork 30 drives the main bolt assembly 20 to retract into the lock case 10, thereby unlocking the main bolt 21. In the process of retracting the main tongue assembly 20 into the lock box 10, the second boss 214 of the main tongue assembly 20 pushes the latch bolt pushing piece 40 to rotate around the second slide bar 13 and make the third slide bar 14 disengage from the limiting groove 43 and slide into the third slide groove 42, at this time, the key continues to rotate, the key drives the driving part 51 of the lock 50 to push the latch bolt pushing piece 40 to move along the second slide groove 41 and the third slide groove 42, the latch bolt pushing piece 40 pushes the latch bolt shifting piece 6 to rotate clockwise, and the second unlocking piece 62 of the latch bolt shifting piece 60 presses the positioning piece 73 to move inside the lock box 10, so as to drive the whole latch bolt to retract into the lock box 10, thereby completing unlocking of the latch bolt 71.

The above is a detailed implementation manner of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A key unlock mechanism, comprising: the lock comprises a lock box, a main bolt assembly, a main bolt shifting fork, an oblique bolt pushing sheet and a lock head; the lock box comprises a bottom plate and a side plate, the side plate is provided with a main tongue hole, the main tongue assembly comprises a main tongue and a main tongue push plate, the main tongue push plate is provided with a first sliding groove and a sliding groove, the first sliding groove is perpendicular to the side plate, a main tongue shifting fork is rotatably connected with the bottom plate, one end of the main tongue shifting fork is provided with a driving rod, the driving rod is positioned in the sliding groove and used for driving the main tongue push plate to move along the first sliding groove direction, an oblique tongue push sheet is provided with a second sliding groove and a third sliding groove, the second sliding groove and the third sliding groove are respectively parallel to the side plate, the bottom plate is provided with a second sliding rod sliding along the second sliding groove and a third sliding rod sliding along the third sliding groove, one end of the third sliding groove close to the second sliding groove is provided with a limiting groove, the limiting groove and the third sliding groove are included angle, a lock head is rotatably connected with the bottom plate, a side wall of the lock head extends to be provided with a driving part, and the driving part is used for driving the main tongue shift fork to rotate and driving the oblique tongue push sheet to slide along the second sliding groove and the third sliding groove The groove slides, a first boss used for pushing the latch tongue pushing sheet to wind the second slide bar and enabling the third slide bar to slide into the limiting groove is arranged on one side, away from the main tongue, of the main tongue pushing plate, a second boss used for pushing the latch tongue pushing sheet to wind the second slide bar and enabling the third slide bar to be separated from the limiting groove is arranged on one side, close to the main tongue, of the main tongue pushing plate, and the latch tongue pushing sheet is located between the first boss and the second boss;

2. The key unlocking mechanism according to claim 1, wherein an open slot is formed in a side of the main bolt fork adjacent to the lock head, and when the lock head rotates in one direction, the driving part of the lock head slides into the open slot and drives the main bolt fork to rotate in one direction, and then the driving part of the lock head is disengaged from the open slot; when the lock head rotates along the other direction, the driving part of the lock head slides into the opening groove and drives the main bolt shifting fork to rotate along the other direction, and then the driving part of the lock head is separated from the opening groove.

3. The key unlocking mechanism of claim 2, wherein the latch bolt pushing piece is provided with a driving portion at a side close to the lock head, when the lock head rotates in the other direction, the driving portion of the lock head slides into the open slot and drives the main lock bolt shifting fork to rotate in the other direction, and after the driving portion of the lock head is disengaged from the open slot, the driving portion of the lock head drives the latch bolt pushing piece to slide along the second sliding slot and the third sliding slot through the driving portion.

4. The key unlocking mechanism according to any one of claims 1 to 3, characterized in that the key unlocking mechanism further comprises a latch bolt shifting piece and a latch bolt assembly, the latch bolt assembly comprises a latch bolt, a latch bolt rod, a positioning piece, a guide block and a compression spring, a side plate of the lock box is provided with a latch bolt hole, the latch bolt is movably arranged in the latch bolt hole and is fixedly connected with one end of the latch bolt rod, the positioning piece is fixed in the lock box, the positioning piece is provided with a guide groove, the other end of the latch bolt rod sequentially penetrates through the compression spring and the guide groove and then is rotatably connected with the guide block, the compression spring is in a compressed state, and the guide block can linearly move back and forth along with the latch bolt rod; the oblique tongue plectrum rotates and sets up in the lock box, the oblique tongue plectrum is located between oblique tongue subassembly and the main tongue subassembly, the oblique tongue plectrum includes first unlocking sheet and second unlocking sheet, first unlocking sheet is close to the oblique tongue pushing jack and contacts with the oblique tongue pushing jack, the second unlocking sheet stretches into between locating piece and the guide block, and it unblanks to drive the oblique tongue through driving the rotation of oblique tongue plectrum when the oblique tongue plectrum.