CN211038128U - Electronic anti-theft door lock - Google Patents

Electronic anti-theft door lock Download PDF

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Publication number
CN211038128U
CN211038128U CN201921516465.7U CN201921516465U CN211038128U CN 211038128 U CN211038128 U CN 211038128U CN 201921516465 U CN201921516465 U CN 201921516465U CN 211038128 U CN211038128 U CN 211038128U
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CN
China
Prior art keywords
fork
shifting
shifting fork
limiting
arc
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Active
Application number
CN201921516465.7U
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Chinese (zh)
Inventor
陈梅芳
卢镇洪
祝大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Royalwand Hardware Co ltd
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Zhongshan Royalwand Hardware Co ltd
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Priority to CN201921516465.7U priority Critical patent/CN211038128U/en
Application granted granted Critical
Publication of CN211038128U publication Critical patent/CN211038128U/en
Active legal-status Critical Current
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Abstract

The utility model relates to an electronic anti-theft door lock, which comprises a shell and a shifting fork assembly, wherein the shifting fork assembly comprises a front shifting fork and a rear shifting fork, the front shifting fork and the rear shifting fork are respectively and rotatably arranged in the shell, the rear shifting fork and the front shifting fork are transmitted through a clutch pin, more than two front anti-torsion limit positions are arranged on the rotating motion track between the shell and the front shifting fork corresponding to the front shifting fork, and the rotating angles of the front shifting fork are simultaneously limited by the front anti-torsion limit positions; more than two rear anti-torsion limits are arranged on a rotary motion track between the shell and the rear shifting fork corresponding to the rear shifting fork, and the rear anti-torsion limits limit simultaneously limit the rotation angle of the rear shifting fork. More than two anti-torsion limits are respectively arranged between the front shifting fork and the shell and between the rear shifting fork and the shell of the electronic anti-theft door lock, and the anti-torsion limits are arranged at each position to simultaneously limit the rotation angles of the front shifting fork and the rear shifting fork, so that the front shifting fork and the rear shifting fork can resist larger torsion, the resistance to the torsion reaches 50 N.m and above, and the anti-theft capacity of the electronic door lock is greatly enhanced.

Description

Electronic anti-theft door lock
Technical Field
The utility model relates to an electronic lock, especially an electronic security door lock.
Background
The electronic door lock mainly comprises a shell, a shifting fork assembly, an electric control driving device and a lock tongue assembly, wherein the shifting fork assembly comprises a front shifting fork and a rear shifting fork (or comprises a middle shifting fork), the shifting forks are matched with each other through a clutch pin, the clutch pin is driven by the electric control driving device, and the rear shifting fork is in transmission connection with the lock tongue assembly. The front shifting fork can be unlocked only after being connected with the rear shifting fork by virtue of the clutch pin. The shifting fork assembly is rotatably arranged in the shell, a limiting protrusion is arranged on the end face of the shifting fork assembly, an arc-shaped limiting groove is formed in the shell corresponding to the rotating motion track of the limiting protrusion, and the limiting protrusion moves in the range of the arc-shaped limiting groove. Under normal conditions, when spacing arch when the spacing inslot scope moves, if the separation and reunion round pin does not connect front fork and back shift fork together (give the automatically controlled drive arrangement of correct door opening command control separation and reunion round pin and connect front fork and back shift fork together), then can not realize the external unlocking of door. However, when the front shifting fork is forcibly twisted (the handle outside the door is connected with the front shifting fork) to cause the limiting protrusion to be worn off and lose the limiting function, the front shifting fork can rotate by a larger angle, so that the rear shifting fork is driven to move, and unlocking is realized. Because the shifting fork assembly in the existing electronic door lock generally only has the limiting function at two end faces, the resisting torque is generally 20 N.m, and the anti-theft performance is poor.
Disclosure of Invention
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide an electronic security door lock rational in infrastructure, shift fork subassembly torsional resistance is strong, the theftproof is effectual.
The purpose of the utility model is realized like this:
an electronic anti-theft door lock comprises a shell and a shifting fork assembly, wherein the shifting fork assembly comprises a front shifting fork and a rear shifting fork, the front shifting fork and the rear shifting fork are respectively and rotatably arranged in the shell, and the rear shifting fork and the front shifting fork are transmitted through a clutch pin; more than two rear anti-torsion limits are arranged on a rotary motion track between the shell and the rear shifting fork corresponding to the rear shifting fork, and the rear anti-torsion limits limit simultaneously limit the rotation angle of the rear shifting fork.
The purpose of the utility model can also adopt the following technical measures to solve:
as a more specific scheme, a first limiting protrusion is arranged at the front end of the front shifting fork, a first arc-shaped limiting groove is formed in the front end of the shell corresponding to the rotating motion track of the first limiting protrusion, the first limiting protrusion and the first arc-shaped limiting groove are matched to form first front anti-torsion limiting, and the first limiting protrusion moves in the range of the first arc-shaped limiting groove.
As a further scheme, a second limiting protrusion is arranged on the periphery of the front shifting fork, a limiting stop lever is arranged in the shell corresponding to the rotating motion track of the second limiting protrusion, the second limiting protrusion and the limiting stop lever are matched to form second front anti-torsion limiting, and the second limiting protrusion rotates for a certain angle and then is stopped with the limiting stop lever.
As a further scheme, the rear anti-torsion limit is provided with two positions, namely a first rear anti-torsion limit and a second rear anti-torsion limit; a third limiting bulge is arranged on the periphery of the rear shifting fork, the third limiting bulge is matched with the limiting stop lever to form a first rear anti-torsion limiting, and the third limiting bulge rotates for a certain angle and then is stopped with the limiting stop lever; the rear end of the rear shifting fork is provided with a fourth limiting protrusion, the rear end of the shell is provided with a second arc-shaped limiting groove corresponding to the rotating motion track of the fourth limiting protrusion, the fourth limiting protrusion and the second arc-shaped limiting groove are matched to form second rear anti-torsion limiting, and the fourth limiting protrusion moves in the range of the second arc-shaped limiting groove.
As a further scheme, the shifting fork assembly further comprises a middle shifting fork, a spring bolt transmission mechanism, an oblique tongue and a square tongue are further arranged in the shell, the middle shifting fork is arranged between the front shifting fork and the rear shifting fork, square holes penetrating through the front side and the rear side of the front shifting fork, square holes penetrating through the surfaces of the middle shifting fork and the rear shifting fork are respectively arranged on the surfaces of the front shifting fork, the middle shifting fork and the rear shifting fork, the front shifting fork, the middle shifting fork and the rear shifting fork are transmitted through clutch pins, and an electric control driving; the dead bolt is in transmission connection with the lock bolt transmission mechanism, the latch bolt and the middle shifting fork are in transmission through the front shifting piece, and the periphery of the middle shifting fork is provided with a latch bolt unlocking shifting block for shifting the front shifting piece; the lock tongue transmission mechanism is provided with a lock tongue locking shifting piece, and the rear side of the middle shifting fork is provided with a rear shifting piece and a lock tongue driving shifting block for shifting the rear shifting piece.
As a further proposal, the rear shifting piece is meshed with the upper shifting piece of the dead bolt through a tooth surface.
As a further scheme, clutch grooves are formed beside the periphery of the square hole corresponding to the middle shifting fork and penetrate through the front side and the rear side of the middle shifting fork; the clutch pin is telescopically arranged outside the clutch groove; the front side of the rear shifting fork is provided with a rear transmission shifting block, the rear side of the front shifting fork is provided with a front transmission shifting block, and the rear transmission shifting block and the front transmission shifting block respectively extend into the clutch groove; a front rotary reset spring is arranged between the front shifting fork and the middle shifting fork; the rear shifting fork is rotatably arranged at the rear side of the middle shifting fork, and a rear rotating reset spring is arranged between the rear shifting fork and the middle shifting fork.
As a further scheme, a front arc-shaped groove is formed in the front side of the middle shifting fork, the front arc-shaped groove is formed beside the periphery of a square hole of the middle shifting fork, a front guide shifting block is arranged on the rear side of the front shifting fork, and the front guide shifting block is inserted into the front arc-shaped groove; the front rotary reset spring is a compression spring which is arranged in the front arc-shaped groove, and two ends of the front arc-shaped groove are respectively abutted against one end of the front steering shifting block and one end of the front arc-shaped groove. The rear side of the middle shifting fork is provided with a rear arc-shaped groove, the rear arc-shaped groove is arranged beside the periphery of the square hole of the middle shifting fork, the front side of the rear shifting fork is provided with a rear guide shifting block, and the rear guide shifting block is inserted into the rear arc-shaped groove; the rear rotating reset spring is a compression spring which is arranged in the rear arc-shaped groove, and two ends of the rear arc-shaped groove are respectively abutted against one end of the rear guide shifting block and one end of the rear arc-shaped groove. The front shifting fork and the rear shifting fork are partially embedded into the middle shifting fork, a front abdicating opening is formed in the periphery of the middle shifting fork corresponding to the second limiting protrusion, and a rear abdicating opening is formed in the periphery of the middle shifting fork corresponding to the third limiting protrusion. The front fork, the middle fork and the rear fork combined in this way are compact in structure.
As a further scheme, the shell comprises a front shell, a rear shell and a side plate, the limit stop lever is arranged between the front shell and the rear shell, the side plate is arranged on one side of the front shell and one side of the rear shell, the oblique tongue is linearly and slidably arranged in the shell, and the end part of the oblique tongue and the end part of the square tongue extend out of the side plate; the shell is also internally provided with an anti-insertion tongue, one end of the anti-insertion tongue extends out of the side plate, the other end of the anti-insertion tongue is connected with a lock hook used for limiting the sliding of the latch tongue, the lock hook is also connected with the front shifting piece, one end of the lock hook extends to the side of the sliding track of the latch tongue, two detection switches are linearly arranged beside the sliding track of the latch tongue, and the two detection switches are distributed at the rear end of the sliding track of the latch tongue and beside one end of the lock hook. The installation mode of the detection switch can save space, and the installation and the line connection are more convenient.
The utility model has the advantages as follows:
(1) more than two anti-torsion limits are respectively arranged between the front shifting fork and the shell and between the rear shifting fork and the shell of the electronic anti-theft door lock, and the anti-torsion limits are arranged at each position to simultaneously limit the rotation angles of the front shifting fork and the rear shifting fork, so that the front shifting fork and the rear shifting fork can resist larger torsion, the resistance to the torsion reaches 50 N.m and above, and the anti-theft capacity of the electronic door lock is greatly enhanced.
(2) In a front torsion-resistant limiting position between a front shifting fork and a shell of the electronic anti-theft door lock, a limiting bulge on the periphery of the front shifting fork and the shell act together, and the central moment of the front shifting fork is longer due to the limiting bulge, so that when the center of the front shifting fork is acted by torsion, the resisting capability of the limiting bulge on the periphery of the front shifting fork is stronger; also, the resistance of the limiting protrusion located at the periphery of the rear fork is stronger.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention (after the rear case is opened).
Fig. 2 is another angle structure diagram of fig. 1.
Fig. 3 is the utility model discloses well fork assembly, preceding plectrum and back plectrum decomposition structure schematic diagram.
Fig. 4 is another angle structure diagram of fig. 3.
Fig. 5 is an angle three-dimensional structure diagram of the middle fork assembly of the present invention.
Fig. 6 is another angle structure diagram of fig. 5.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
referring to fig. 1 to 6, an electronic anti-theft door lock comprises a housing and a fork assembly 10, wherein the fork assembly 10 comprises a front fork 6 and a rear fork 8, the front fork 6 and the rear fork 8 are respectively rotatably arranged in the housing, the rear fork 8 and the front fork 6 are driven by a clutch pin 73, more than two front anti-torsion limits are arranged between the housing and the front fork 6 corresponding to a rotary motion track of the front fork 6, and the front anti-torsion limits at each position simultaneously limit a rotation angle of the front fork 6; more than two rear anti-torsion limits are arranged on a rotary motion track between the shell and the rear shifting fork 8 corresponding to the rear shifting fork 8, and the rear anti-torsion limits limit simultaneously limit the rotation angle of the rear shifting fork 8.
The front end of the front shifting fork 6 is provided with a first limiting protrusion 61, the front end of the shell is provided with a first arc-shaped limiting groove 24 corresponding to the rotating motion track of the first limiting protrusion 61, the first limiting protrusion 61 and the first arc-shaped limiting groove 24 are matched to form first front anti-torsion limiting, and the first limiting protrusion 61 moves in the range of the first arc-shaped limiting groove 24.
The periphery of preceding shift fork 6 is equipped with the spacing arch 62 of second, and the rotatory orbit that corresponds the spacing arch 62 of second in the casing is equipped with spacing shelves pole 23, and the cooperation of the spacing arch 62 of second and spacing shelves pole 23 forms the antitorque spacing before the second, and spacing arch 62 of second rotates certain angle back and keeps off with spacing shelves pole 23 mutually.
The rear anti-torsion limit is provided with two positions, namely a first rear anti-torsion limit and a second rear anti-torsion limit; a third limiting protrusion 81 is arranged on the periphery of the rear shifting fork 8, the third limiting protrusion 81 is matched with the limiting stop lever 23 to form a first rear torsion-resistant limiting, and the third limiting protrusion 81 rotates by a certain angle and then is stopped with the limiting stop lever 23; the rear end of the rear shifting fork 8 is provided with a fourth limiting protrusion 84, the rear end of the shell is provided with a second arc-shaped limiting groove corresponding to the rotating motion track of the fourth limiting protrusion 84, the fourth limiting protrusion 84 and the second arc-shaped limiting groove are matched to form second rear anti-torsion limiting, and the fourth limiting protrusion 84 moves in the range of the second arc-shaped limiting groove.
The shifting fork assembly 10 further comprises a middle shifting fork 7, a bolt transmission mechanism 30, an oblique bolt 31 and a square bolt 33 are further arranged in the shell, the middle shifting fork 7 is arranged between the front shifting fork 6 and the rear shifting fork 8, square holes penetrating through the front side and the rear side of the front shifting fork 6, the middle shifting fork 7 and the rear shifting fork 8 are respectively formed in the surfaces of the front shifting fork 6, the middle shifting fork 7 and the rear shifting fork 8, the front shifting fork 6, the middle shifting fork 7 and the rear shifting fork 8 are transmitted through a clutch pin 73, and an electric control driving device 20 used for triggering; the dead bolt 33 is in transmission connection with the bolt transmission mechanism 30, the latch bolt 31 and the middle shifting fork 7 are in transmission through the front shifting piece 5, and a latch bolt unlocking shifting block 71 for shifting the front shifting piece 5 is arranged on the periphery of the middle shifting fork 7; the bolt transmission mechanism 30 is provided with a bolt locking shifting piece 301, and the rear side of the middle shifting fork 7 is provided with a rear shifting piece 1 and a bolt driving shifting block 78 for shifting the rear shifting piece 1.
The rear shifting piece 1 is meshed with the dead bolt upper locking shifting piece 301 through a tooth surface. The periphery of the rear shifting piece 1 is provided with a first fan-shaped tooth surface 12, the middle part of the rear shifting piece 1 is provided with a through hole, the through hole is sleeved on the periphery of the rear shifting fork 8 and is in running fit with the periphery of the rear shifting fork 8, the surface of the rear shifting piece 1 is provided with a rear arc-shaped limiting groove 11 corresponding to the periphery of the through hole, and the square tongue driving shifting block 78 extends into the rear arc-shaped limiting groove 11; the periphery of the upper lock plate 301 of the dead bolt transmission mechanism 30 is provided with a second sector tooth surface meshed with the first sector tooth surface 12.
A clutch groove 72 is formed beside the periphery of the square hole corresponding to the middle shifting fork 7, and the clutch groove 72 penetrates through the front side and the rear side of the middle shifting fork 7; the clutch pin 73 is telescopically arranged outside the clutch groove 72; a rear transmission shifting block 82 is arranged on the front side of the rear shifting fork 8, a front transmission shifting block 63 is arranged on the rear side of the front shifting fork 6, and the rear transmission shifting block 82 and the front transmission shifting block 63 respectively extend into the clutch groove 72; a front rotary reset spring is arranged between the front shifting fork 6 and the middle shifting fork 7; the rear shifting fork 8 is rotatably arranged at the rear side of the middle shifting fork 7, and a rear rotating reset spring is arranged between the rear shifting fork 8 and the middle shifting fork 7. The front and rear rotary return springs are not shown in the figures.
A front arc-shaped groove 74 is formed in the front side of the middle shifting fork 7, the front arc-shaped groove 74 is formed beside the periphery of a square hole of the middle shifting fork 7, a front guide shifting block 64 is arranged on the rear side of the front shifting fork 6, and the front guide shifting block 64 is inserted into the front arc-shaped groove 74; the front rotating reset spring is a compression spring which is arranged in the front arc-shaped groove 74, and two ends of the front arc-shaped groove 74 are respectively abutted against one end of the front steering shifting block 64 and one end of the front arc-shaped groove 74.
A rear arc-shaped groove 76 is formed in the rear side of the middle shifting fork 7, the rear arc-shaped groove 76 is formed beside the periphery of the square hole of the middle shifting fork 7, a rear guide shifting block 83 is arranged on the front side of the rear shifting fork 8, and the rear guide shifting block 83 is inserted into the rear arc-shaped groove 76; the rear rotating return spring is a compression spring which is arranged in the rear arc-shaped groove 76, and two ends of the rear arc-shaped groove 76 are respectively abutted against one end of the rear guide shifting block 83 and one end of the rear arc-shaped groove 76.
In preceding shift fork 6 and rear shift fork 8 partly embedded in well shift fork 7, well shift fork 7 periphery corresponds the spacing arch 62 of second and is equipped with preceding opening of stepping down 75, and well shift fork 7 periphery corresponds spacing arch 81 of third and is equipped with back opening of stepping down 77.
The shell comprises a front shell 21, a rear shell (not shown in the figure) and a side plate 22, wherein the limit stop rod 23 is arranged between the front shell 21 and the rear shell, the side plate 22 is arranged on one side of the front shell 21 and one side of the rear shell, the latch bolt 31 is linearly arranged in the shell in a sliding manner, and the end part of the latch bolt 31 and the end part of the square bolt 33 extend out of the side plate 22; an anti-insertion tongue 32 is further arranged in the shell, one end of the anti-insertion tongue 32 extends out of the side plate 22, the other end of the anti-insertion tongue 32 is connected with a locking hook 40 used for limiting sliding of the oblique tongue 31, the locking hook 40 is further connected with the front shifting piece 5, one end of the locking hook 40 extends to the side of a sliding track of the oblique tongue 31, two detection switches are linearly arranged beside the sliding track of the oblique tongue 31, the two detection switches are a first detection switch 41 and a second detection switch 42 respectively, the first detection switch 41 is located beside one end of the locking hook 40, and the second detection switch 42 is located at the rear end of the oblique tongue 31. When the latch hook 40 retracts into the housing, the latch hook 40 touches the first detection switch 41; if the rear end of the latch bolt 31 does not touch the second detection switch 42 at this time, the circuit is in a door-closed state by default; if the rear end of the latch bolt 31 touches the second detection switch 42, that is, the circuit is not closed by default, the door may not be closed in this state, and the latch bolt 31 may not be inserted into the keyhole of the door frame.
Preceding plectrum 5 periphery is equipped with latch bolt group foot 52 and touching foot 51, and preceding plectrum 5 middle part is equipped with the through-hole, and the through-hole cover is established outside preceding shift fork 6 and with preceding shift fork 6 normal running fit, and preceding plectrum 5 periphery is equipped with bellying 53, and the latch bolt of well shift fork 7 is unblanked shifting block 71 and is driven preceding plectrum 5 and rotate through promoting bellying 53. The latch bolt shifting leg 52 is in transmission connection with the latch bolt 31, and the touch leg 51 is in transmission connection with the lock hook 40, so that the lock hook 40 is unlocked through the front shifting piece 5.
The working principle is as follows: when the front shifting fork is locked, the first limiting protrusion 61 is blocked with one end of the first arc-shaped limiting groove 24 of the front shell 21 when the front shifting fork 6 is twisted by external force, and the second limiting protrusion 62 is blocked with the limiting blocking rod 23 (the limiting blocking rod 23 is positioned between the front shell and the rear shell), so that the two parts are in mutual action of front anti-torsion limiting, the probability that the first limiting protrusion 61 and the second limiting protrusion 62 are twisted off is greatly reduced, and the front shifting fork 6 is prevented from being unlocked by driving the middle shifting fork after being twisted by a violent force and an overlarge angle.

Claims (9)

1. An electronic anti-theft door lock comprises a shell and a shifting fork assembly (10), wherein the shifting fork assembly (10) comprises a front shifting fork (6) and a rear shifting fork (8), the front shifting fork (6) and the rear shifting fork (8) are respectively and rotatably arranged in the shell, and the rear shifting fork (8) and the front shifting fork (6) are transmitted through a clutch pin (73), and the electronic anti-theft door lock is characterized in that more than two front anti-torsion limits are arranged between the shell and the front shifting fork (6) corresponding to a rotary motion track of the front shifting fork (6), and the front anti-torsion limits define the rotary angle of the front shifting fork (6) at the same time; more than two rear anti-torsion limits are arranged on a rotary motion track between the shell and the rear shifting fork (8) corresponding to the rear shifting fork (8), and the rear anti-torsion limits limit simultaneously limit the rotary angle of the rear shifting fork (8).
2. The electronic anti-theft door lock according to claim 1, characterized in that the front end of the front shifting fork (6) is provided with a first limiting protrusion (61), the front end of the housing is provided with a first arc-shaped limiting groove (24) corresponding to the rotating motion track of the first limiting protrusion (61), the first limiting protrusion (61) and the first arc-shaped limiting groove (24) are matched to form a first front anti-torsion limiting, and the first limiting protrusion (61) moves in the range of the first arc-shaped limiting groove (24).
3. The electronic security door lock according to claim 1 or 2, characterized in that a second limiting protrusion (62) is provided on the periphery of the front shifting fork (6), a limiting stop lever (23) is provided in the housing corresponding to the rotation trajectory of the second limiting protrusion (62), the second limiting protrusion (62) and the limiting stop lever (23) cooperate to form a second front anti-torsion limiting, and the second limiting protrusion (62) rotates a certain angle and then is stopped by the limiting stop lever (23).
4. The electronic security door lock according to claim 3, wherein said rear anti-twist limit has two positions, a first rear anti-twist limit and a second rear anti-twist limit; a third limiting protrusion (81) is arranged on the periphery of the rear shifting fork (8), the third limiting protrusion (81) is matched with the limiting stop lever (23) to form a first rear anti-torsion limiting, and the third limiting protrusion (81) rotates by a certain angle and then is stopped with the limiting stop lever (23); the rear end of the rear shifting fork (8) is provided with a fourth limiting protrusion (84), the rear end of the shell is provided with a second arc-shaped limiting groove corresponding to the rotary motion track of the fourth limiting protrusion (84), the fourth limiting protrusion (84) and the second arc-shaped limiting groove are matched to form second rear anti-torsion limiting, and the fourth limiting protrusion (84) moves in the range of the second arc-shaped limiting groove.
5. The electronic anti-theft door lock according to claim 4, characterized in that the fork assembly (10) further comprises a middle fork (7), a bolt transmission mechanism (30), a latch bolt (31) and a square bolt (33) are further arranged in the housing, the middle fork (7) is arranged between the front fork (6) and the rear fork (8), square holes penetrating through the front side and the rear side of the front fork (6), the middle fork (7) and the rear fork (8) are respectively arranged on the surfaces of the front fork (6), the middle fork (7) and the rear fork (8), the front fork (6), the middle fork (7) and the rear fork (8) are transmitted through a clutch pin (73), and an electric control driving device (20) for triggering the clutch pin (73) is further arranged in the; the dead bolt (33) is in transmission connection with the dead bolt transmission mechanism (30), the latch bolt (31) and the middle shifting fork (7) are in transmission through the front shifting piece (5), and a latch bolt unlocking shifting block (71) for shifting the front shifting piece (5) is arranged on the periphery of the middle shifting fork (7); the lock tongue transmission mechanism (30) is provided with a lock tongue locking shifting piece (301), and the rear side of the middle shifting fork (7) is provided with a rear shifting piece (1) and a lock tongue driving shifting block (78) for shifting the rear shifting piece (1).
6. The electronic security door lock according to claim 5, characterized in that the rear paddle (1) is engaged with the dead bolt lock paddle (301) by a tooth surface.
7. The electronic anti-theft door lock according to claim 6, characterized in that a clutch groove (72) is arranged beside the periphery of the square hole corresponding to the middle shifting fork (7), and the clutch groove (72) penetrates through the front side and the rear side of the middle shifting fork (7); the clutch pin (73) is telescopically arranged outside the clutch groove (72); a rear transmission shifting block (82) is arranged on the front side of the rear shifting fork (8), a front transmission shifting block (63) is arranged on the rear side of the front shifting fork (6), and the rear transmission shifting block (82) and the front transmission shifting block (63) respectively extend into the clutch groove (72); a front rotary reset spring is arranged between the front shifting fork (6) and the middle shifting fork (7); the rear shifting fork (8) is rotatably arranged at the rear side of the middle shifting fork (7), and a rear rotating reset spring is arranged between the rear shifting fork (8) and the middle shifting fork (7).
8. The electronic anti-theft door lock according to claim 7, characterized in that the front side of the middle shifting fork (7) is provided with a front arc-shaped groove (74), the front arc-shaped groove (74) is arranged beside the periphery of the square hole of the middle shifting fork (7), the rear side of the front shifting fork (6) is provided with a front guide shifting block (64), and the front guide shifting block (64) is inserted into the front arc-shaped groove (74); the front rotary reset spring is a compression spring which is arranged in the front arc-shaped groove (74), and two ends of the front arc-shaped groove (74) are respectively abutted against one end of the front guide shifting block (64) and one end of the front arc-shaped groove (74);
a rear arc-shaped groove (76) is formed in the rear side of the middle shifting fork (7), the rear arc-shaped groove (76) is formed beside the periphery of a square hole of the middle shifting fork (7), a rear guide shifting block (83) is arranged on the front side of the rear shifting fork (8), and the rear guide shifting block (83) is inserted into the rear arc-shaped groove (76); the rear rotating reset spring is a compression spring which is arranged in the rear arc-shaped groove (76), and two ends of the rear arc-shaped groove (76) are respectively abutted against one end of the rear guide shifting block (83) and one end of the rear arc-shaped groove (76);
in preceding shift fork (6) and back shift fork (8) partly embedded into well shift fork (7), well shift fork (7) periphery corresponds spacing arch of second (62) and is equipped with preceding abdication opening (75), and well shift fork (7) periphery corresponds spacing arch of third (81) and is equipped with back abdication opening (77).
9. The electronic security door lock according to claim 7, characterized in that the housing comprises a front shell (21), a rear shell and a side plate (22), the limit stop lever (23) is arranged between the front shell (21) and the rear shell, the side plate (22) is arranged at one side of the front shell (21) and the rear shell, the latch bolt (31) is linearly slidably arranged in the housing, and the end of the latch bolt (31) and the end of the square bolt (33) extend out of the side plate (22); an anti-insertion tongue (32) is further arranged in the shell, one end of the anti-insertion tongue (32) extends out of the side plate (22), the other end of the anti-insertion tongue (32) is connected with a locking hook (40) used for limiting the sliding of the latch tongue (31), the locking hook (40) is further connected with the front shifting piece (5), one end of the locking hook (40) extends to the side of the sliding track of the latch tongue (31), two detection switches are linearly arranged on the side of the sliding track of the latch tongue (31), and the two detection switches are distributed on the rear end of the sliding track of the latch tongue (31) and on the side of one end of the locking hook (40).
CN201921516465.7U 2019-09-12 2019-09-12 Electronic anti-theft door lock Active CN211038128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921516465.7U CN211038128U (en) 2019-09-12 2019-09-12 Electronic anti-theft door lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921516465.7U CN211038128U (en) 2019-09-12 2019-09-12 Electronic anti-theft door lock

Publications (1)

Publication Number Publication Date
CN211038128U true CN211038128U (en) 2020-07-17

Family

ID=71564133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921516465.7U Active CN211038128U (en) 2019-09-12 2019-09-12 Electronic anti-theft door lock

Country Status (1)

Country Link
CN (1) CN211038128U (en)

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