CN110185318B - Door lock with clutch shifting fork device - Google Patents
Door lock with clutch shifting fork device Download PDFInfo
- Publication number
- CN110185318B CN110185318B CN201910483286.6A CN201910483286A CN110185318B CN 110185318 B CN110185318 B CN 110185318B CN 201910483286 A CN201910483286 A CN 201910483286A CN 110185318 B CN110185318 B CN 110185318B
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- Prior art keywords
- shifting
- shifting fork
- fork
- arc
- arm
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- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/0013—Followers; Bearings therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/004—Lost motion connections
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
- E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
- E05B47/0692—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a rectilinearly moveable coupling element
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/0026—Clutches, couplings or braking arrangements
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The invention relates to a door lock provided with a clutch shifting fork device, wherein the periphery of a front shifting fork of the clutch shifting fork device is provided with a front transmission shifting block and a front shifting arm, the periphery of a rear shifting fork is provided with a rear transmission shifting block and a rear shifting arm, the front side and the rear side of a middle shifting fork are respectively provided with a front arc-shaped chute and a rear arc-shaped chute, the front transmission shifting block stretches into the front arc-shaped chute, the rear transmission shifting block stretches into the rear arc-shaped chute, the middle shifting fork is provided with a clutch groove for disconnecting the front arc-shaped chute and the rear arc-shaped chute, and when the clutch block enters the clutch groove and is blocked with the front transmission shifting block and the rear transmission shifting block, a sliding space is reserved between the front transmission shifting block and the front arc-shaped chute, and a sliding space is reserved between the rear transmission shifting block and the rear arc-shaped chute. When the rear shifting fork and the middle shifting fork are controlled by the handle in the door to rotate for unlocking, the rear shifting fork and the middle shifting fork can rotate relative to the front shifting fork for working, so that the handle is linked with the handle outside the door when the door is opened inwards, and the safety of product use is improved.
Description
Technical Field
The invention relates to an electronic door lock, in particular to a door lock with a clutch shifting fork device.
Background
The Chinese patent number ZL 201720797774.0 discloses an electronic lock clutch shifting fork assembly in 1 month 19 of 2018, because the built-in independent reset springs of the left shifting fork and the right shifting fork respectively play a role of resetting the left shifting fork and the right shifting fork, dislocation of the shifting fork assembly is prevented, square holes of the left shifting fork and the right shifting fork and square holes of the middle shifting fork are in parallel and perpendicular concentric states, the fact that pins in the shifting fork assembly can be pushed to accurately enter the concentric holes of the shifting fork assembly after each power-on of a motor clutch in a lock body is guaranteed, the left shifting fork and the right shifting fork can be hung on two sides of the pins of the shifting fork is avoided, and accordingly idle rotation can not occur when a handle is pressed down. Because after the pin got into the shift fork subassembly in this structure, left and middle right shift fork is together relatively fixed, consequently the three links, so when leading to the door outside, door in the handle rotate the door, another handle also follows and rotates, and this will lead to, if the resident is gone out from the door in, if the door outside handle is kept off, then can't open the door, has the potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the door lock with the clutch shifting fork device, which has a simple and reasonable structure and can ensure that the inner handle of the door does not link with the outer handle of the door when in work.
The purpose of the invention is realized in the following way:
The door lock with the clutch shifting fork device comprises a front shifting fork, a middle shifting fork, a rear shifting fork and a clutch block, wherein the front shifting fork is rotationally arranged on the front side of the middle shifting fork, the rear shifting fork is rotationally arranged on the rear side of the middle shifting fork, square holes penetrating through the front side and the rear side of the front shifting fork, the middle shifting fork and the rear shifting fork are respectively formed in the surfaces of the front shifting fork, the door lock is characterized in that a front transmission shifting block and a front shifting arm are arranged on the periphery of the front shifting fork, a rear transmission shifting block and a rear shifting arm are arranged on the periphery of the rear shifting fork, a front arc-shaped chute and a rear arc-shaped chute are respectively formed in the front side and the rear side of the middle shifting fork, the front transmission shifting block stretches into the front arc-shaped chute, the rear transmission shifting block stretches into the rear arc-shaped chute, a clutch groove for disconnecting the front arc-shaped chute and the rear arc-shaped chute is arranged on the middle shifting fork, and when the clutch block enters the clutch groove and is blocked with the front transmission shifting block and the rear transmission shifting block, a sliding space is reserved between the front transmission shifting block and the front arc-shaped chute. Through such design, the back shift fork can rotate the work with the relative preceding shift fork with well shift fork, handle and the linkage of outer handle of door when avoiding the door in-opening to the guarantee is even blocked under the unable pivoted condition at outer handle of door, and the user can also unblank through the inner handle of door, in order to improve the security that the product used.
The aim of the invention can be also solved by adopting the following technical measures:
As a more specific scheme, the clutch groove breaks the middle parts of the front arc-shaped chute and the rear arc-shaped chute, and the front arc-shaped chute and the rear arc-shaped chute are opposite; the outer end of the clutch block is provided with a contact, the contact extends out of the clutch groove, and a reset spring is arranged between the inner end of the clutch block and the inner end of the clutch groove. The front arc-shaped sliding groove and the rear arc-shaped sliding groove of the middle shifting fork are arranged in a front-back symmetrical mode, when the installation position of the door lock needs to be changed, the door lock can have wider universality by changing the matching mode of the square shaft of the handle in the front door and the front shifting fork, the middle shifting fork and the rear shifting fork.
As a further scheme, the periphery of the middle shifting fork is also provided with an arc notch, and the front shifting arm and the rear shifting arm extend into the arc notch; the door lock comprises a shell, the clutch shifting fork device is arranged in the shell, a reset torsion spring is arranged in the shell corresponding to the side of the front shifting arm and the side of the rear shifting arm, and the reset torsion spring is respectively abutted against the front shifting arm and the rear shifting arm.
As a further scheme, the reset torsion spring comprises a front torsion spring body and a rear torsion spring body, wherein the front torsion spring body and the rear torsion spring body are coaxially arranged, and the front torsion spring body and the rear torsion spring body are respectively provided with two abutting legs; wherein, one abutting leg of the front torsion spring body and one abutting leg of the rear torsion spring body are connected into a whole to form a common abutting leg; the other abutting leg of the front torsion spring body is a front abutting leg which abuts against the front shifting arm of the front shifting fork; the other abutting leg of the rear torsion spring body is a rear abutting leg which abuts against the rear shifting arm of the rear shifting fork; the shell is internally provided with a positioning shaft, and the reset torsion spring is sleeved outside the positioning shaft.
As a further scheme, the front conflict foot and the back conflict foot of reset torsional spring all are L type, and preceding arm and back arm one side of dialling are equipped with the constant head tank, and preceding conflict foot is contradicted with the constant head tank of preceding arm, and back conflict foot is contradicted with the constant head tank of back arm. So as to reduce the probability that the abutting leg of the reset torsion spring is separated from the poking arm.
As a further scheme, the periphery of the front shifting fork is corresponding to the side of the front shifting arm, and the periphery of the rear shifting fork is corresponding to the side of the rear shifting arm, and is provided with an anti-unhooking hook. Further prevent the contact leg of the reset torsion spring from falling out of the poking arm.
As a further scheme, the door lock comprises a lock tongue transmission mechanism, an inclined tongue and a square tongue, wherein the square tongue is in transmission connection with the lock tongue transmission mechanism, the inclined tongue and the lock tongue transmission mechanism are transmitted through a front shifting plate, and an inclined tongue unlocking shifting block for shifting the front shifting plate is arranged at the front side of the middle shifting fork; the lock tongue transmission mechanism is provided with a square tongue locking shifting piece, the rear side of the middle shifting fork is provided with a rear shifting piece and a square tongue driving shifting piece for shifting the rear shifting piece, and the rear shifting piece is meshed with the square tongue locking shifting piece through a tooth surface.
As a further scheme, a first sector tooth surface is arranged on the periphery of the rear shifting plate, a through hole is formed in the middle of the rear shifting plate, the through hole is sleeved on the periphery of the rear shifting fork and is in outer turnover fit with the rear shifting fork, a rear arc-shaped limit groove is formed in the surface of the rear shifting plate, corresponding to the periphery of the through hole, and the square tongue driving shifting block extends into the rear arc-shaped limit groove; the periphery of a square tongue upper locking shifting piece of the lock tongue transmission mechanism is provided with a second sector tooth surface which is meshed with the first sector tooth surface.
As a further scheme, the front side of the rear shifting piece is provided with a shifting lever, and the shifting lever extends into the arc-shaped notch of the middle shifting fork.
As a further scheme, the periphery of the front shifting sheet is provided with an inclined tongue shifting foot and a touch foot, the middle part of the front shifting sheet is provided with a through hole, the through hole is sleeved on the periphery of the front shifting sheet and is in epicyclic fit with the outer part of the front shifting sheet, the surface of the front shifting sheet is provided with a front arc-shaped limit groove corresponding to the periphery of the through hole, and the inclined tongue unlocking shifting block extends into the front arc-shaped limit groove; the oblique tongue poking foot is in transmission connection with the oblique tongue, and the touch foot is in transmission connection with the lock tongue transmission mechanism.
The beneficial effects of the invention are as follows:
(1) The length of the front arc-shaped sliding groove and the rear arc-shaped sliding groove of the door lock with the clutch shifting fork device are respectively larger than the sum of the lengths of the front transmission shifting block, the rear transmission shifting block and the clutch block, when the handle in the door controls the rear shifting fork to rotate with the middle shifting fork to unlock, the rear shifting fork and the middle shifting fork can rotate relative to the front shifting fork to work, the handle and the handle outside the door are prevented from being linked when the door is opened inwards, so that a user can unlock through the handle in the door even under the condition that the handle outside the door is blocked and cannot rotate, and the use safety of a product is improved.
(2) The door lock with the clutch shifting fork device can realize the operation of lifting and locking and pressing down to unlock the inner side of the door, and in the locking and unlocking processes, the middle shifting fork drives the rear shifting piece to be meshed with the square tongue locking shifting piece through the tooth surface, so that the movement of the lock tongue transmission mechanism is progressively driven, and the condition of the lock tongue transmission mechanism is instantaneously switched to generate larger impact abrasion and noise.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is an exploded view of the clutch fork device according to the present invention.
Fig. 3 is a schematic view of another angle structure of fig. 2.
FIG. 4 is a schematic diagram of the return torsion spring of the present invention.
Fig. 5 is a schematic view of another angle structure of fig. 1 after assembly.
Fig. 6 is a schematic view of the assembled front view of fig. 1.
Fig. 7 is a schematic rear view of the structure of fig. 6 with the bottom case removed.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples:
Referring to fig. 1 to 6, a door lock 10 with a clutch fork device, the clutch fork device comprises a front fork 8, a middle fork 7, a rear fork 5 and a clutch block 71, the front fork 8 is rotatably arranged on the front side of the middle fork 7, the rear fork 5 is rotatably arranged on the rear side of the middle fork 7, square holes penetrating through the front side and the rear side of the front fork 8, the surfaces of the middle fork 7 and the rear fork 5 are respectively arranged on the surfaces of the front fork 8, the middle fork 7 and the rear fork 5, the door lock is characterized in that a front transmission fork 81 and a front fork arm 82 are arranged on the periphery of the front fork 8, a rear transmission fork 52 and a rear fork arm 53 are arranged on the periphery of the rear fork 5, a front arc chute 79 and a rear arc chute 77 are respectively arranged on the front side and the rear side of the middle fork 7, the front transmission fork 81 stretches into the front arc chute 79, the rear transmission fork 52 stretches into the rear arc chute 77, a clutch slot 73 disconnecting the front arc chute 79 and the rear arc chute 77 is arranged on the middle fork 7, and when the clutch block 71 enters the clutch slot 73 and is opposite to the front transmission fork 81 and the rear transmission fork 52, a rear arc chute 79 is reserved between the front transmission fork 81 and the front transmission fork 52, and the rear arc chute 77 is reserved.
The clutch groove 73 breaks the middle parts of the front arc-shaped chute 79 and the rear arc-shaped chute 77, and the front arc-shaped chute 79 and the rear arc-shaped chute 77 are opposite; the outer end of the clutch block 71 is provided with a contact 711, the contact 711 extends out of the clutch groove 73, and a return spring 72 is arranged between the inner end of the clutch block 71 and the inner end of the clutch groove 73. The inner end of the clutch block 71 is provided with a positioning column 712, and the return spring 72 is sleeved outside the positioning column 712. The door lock is provided with a clutch pin electric control mechanism 20 for pushing the contact 711.
The periphery of the middle shifting fork 7 is also provided with an arc notch 75, and the front shifting arm 82 and the rear shifting arm 53 extend into the arc notch 75; the door lock comprises a shell 4, a clutch shifting fork device 10 is arranged in the shell 4, a reset torsion spring 30 is arranged in the shell 4 beside the corresponding front shifting arm 82 and rear shifting arm 53, and the reset torsion spring 30 is respectively abutted against the front shifting arm 82 and the rear shifting arm 53.
The reset torsion spring 30 comprises a front torsion spring body 302 and a rear torsion spring body 301, the front torsion spring body 302 and the rear torsion spring body 301 are coaxially arranged, and the front torsion spring body 302 and the rear torsion spring body 301 are respectively provided with two abutting legs; wherein, one abutting leg of the front torsion spring body 302 is integrally connected with one abutting leg of the rear torsion spring body 301 to form a common abutting leg 303; the other abutting leg of the front torsion spring body 302 is a front abutting leg 305, and the front abutting leg 305 abuts against the front shifting arm 82 of the front shifting fork 8; the other abutting leg of the rear torsion spring body 301 is a rear abutting leg 304, and the rear abutting leg 304 abuts against the rear shifting arm 53 of the rear shifting fork 5; a positioning shaft is arranged in the shell 4, and a reset torsion spring 30 is sleeved outside the positioning shaft.
The front abutting leg 305 and the rear abutting leg 304 of the reset torsion spring 30 are L-shaped, a positioning groove 531 is provided on one side of the front poking arm 82 and one side of the rear poking arm 53, the front abutting leg 305 abuts against the positioning groove 531 of the front poking arm 82, and the rear abutting leg 304 abuts against the positioning groove 531 of the rear poking arm 53.
The periphery of the front shifting fork 8 corresponds to the side of the front shifting arm 82, and the periphery of the rear shifting fork 5 corresponds to the side of the rear shifting arm 53, and the anti-unhooking hooks 54 are arranged.
The door lock comprises a lock tongue transmission mechanism 3, an inclined tongue 2 and a square tongue 32, wherein the square tongue 32 is in transmission connection with the lock tongue transmission mechanism 3, the inclined tongue 2 and the lock tongue transmission mechanism 3 are transmitted through a front shifting plate 1, and an inclined tongue unlocking shifting block 78 for shifting the front shifting plate 1 is arranged at the front side of a middle shifting fork 7; the lock tongue transmission mechanism 3 is provided with a square tongue locking shifting piece 34, the rear side of the middle shifting fork 7 is provided with a rear shifting piece 6 and a square tongue driving shifting piece 76 for shifting the rear shifting piece 6, and the rear shifting piece 6 is meshed with the square tongue locking shifting piece 34 through a tooth surface.
The periphery of the rear shifting sheet 6 is provided with a first sector tooth surface 61, the middle part of the rear shifting sheet 6 is provided with a through hole, the through hole is sleeved on the periphery of the rear shifting fork 5 and is in epicyclic fit with the periphery of the rear shifting fork 5, the surface of the rear shifting sheet 6 is provided with a rear arc limiting groove 62 corresponding to the periphery of the through hole, and the square tongue driving shifting block 76 extends into the rear arc limiting groove 62; the periphery of the square tongue locking pulling piece 34 of the lock tongue transmission mechanism 3 is provided with a second sector tooth surface which is meshed with the first sector tooth surface 61.
The front side of the rear shifting sheet 6 is provided with a shifting rod 63, and the shifting rod 63 extends into an arc-shaped notch 75 of the middle shifting fork 7.
The periphery of the front shifting piece 1 is provided with a bevel tongue shifting foot 13 and a touch foot 11, the middle part of the front shifting piece 1 is provided with a through hole, the through hole is sleeved on the periphery of the front shifting fork 8 and is in epicyclic fit with the periphery of the front shifting fork 8, the surface of the front shifting piece 1 is provided with a front arc-shaped limiting groove 12 corresponding to the periphery of the through hole, and the bevel tongue unlocking shifting block 78 extends into the front arc-shaped limiting groove 12; the inclined tongue poking foot 13 is in transmission connection with the inclined tongue 2, and the touch foot 11 is in transmission connection with the lock tongue transmission mechanism 3.
The electronic lock is provided with a shell 4, a front boss is arranged on the front side of the front shifting fork 8, a rear boss is arranged on the rear side of the rear shifting fork 5, a front through hole and a rear through hole are respectively arranged on the shell 4 corresponding to the front boss and the rear boss, the front boss is in running fit with the front through hole, and the rear boss is in running fit with the rear through hole. The periphery of the front through hole is provided with a front limit groove 41, the periphery of the front boss is provided with a front limit stop 83, and the front limit stop 83 is inserted into the front limit groove 41; the periphery of the rear through hole is provided with a rear limit groove, the periphery of the rear boss is provided with a rear limit stop, and the rear limit stop 51 is inserted into the rear limit groove.
The electronic lock further comprises a lock cylinder 9, the lock cylinder 9 is provided with a deflector rod 91 and a knob 92 for driving the deflector rod 91, the knob 92 is arranged at the rear end of the lock cylinder 9, and the deflector rod 91 is in transmission connection with the lock tongue transmission mechanism 3.
The electronic lock further comprises an outer door handle and an inner door handle (not shown in the figure), wherein a front shaft is arranged in the outer door handle and is in plug-in fit with a square hole of the front shifting fork 8; a rear shaft is arranged in the door handle and is in plug-in fit with the square hole of the rear shifting fork 5 and the square hole of the middle shifting fork 7.
The "front" refers to the outside of the door and the "rear" refers to the inside of the door.
The working principle is as follows: when the door body is closed, the door outer handle is pulled, and the door outer handle and the front shifting fork 8 are in an idle state, so that the door cannot be opened outside the door; the inner handle of the door is lifted up, the inner handle of the door drives the middle shifting fork 7 and the rear shifting fork 5 to rotate, the middle shifting fork 7 drives the lock tongue transmission mechanism 3 to act through the rear shifting piece 6, so that the square tongue 32 and the top and bottom rods 31 and 33 extend out, and the lifting and locking are realized; when the door is required to be opened inwards, the inner handle of the door is pressed down, the middle shifting fork 7 controls the square tongue 32 and the top and bottom rods 31 and 33 to retract, meanwhile, the middle shifting fork 7 drives the front shifting piece 1 to act, and the front shifting piece 1 controls the inclined tongue 2 to retract, so that unlocking is realized; in addition, when the door is opened, the front arc chute 79 of the middle fork 7 rotates relative to the front transmission shifting block 81 of the front fork 8 (because the front arc chute 79 has a larger length, a certain neutral gear area is reserved, the front fork 8 is not pushed to move within a certain range), so that the outer handle of the door is prevented from moving when the door is opened (see fig. 7).
When the door is opened outwards, after receiving an unlocking command, the clutch pin electric control mechanism 20 starts and pushes the contact 711, the contact 711 drives the clutch block 71 to enter the clutch groove 73, the front shifting fork 8, the middle shifting fork 7, the rear shifting fork 5 and the clutch block 71 are connected, and the door outer handle is rotated, so that the middle shifting fork 7 and the rear shifting fork 5 can be driven to move, and unlocking is realized. In addition, the inside of the door can drive the shift lever 91 to act by rotating the knob 92 of the lock cylinder 9, thereby realizing unlocking or locking; after a specified key is inserted into the lock cylinder 9, the lock can be unlocked or locked by driving the shift lever 91.
When the door is opened outwards, after receiving an unlocking command, the clutch pin electric control mechanism 20 starts and pushes the contact 711, the contact 711 drives the clutch block 71 to enter the clutch groove 73, the front shifting fork 8, the middle shifting fork 7, the rear shifting fork 5 and the clutch block 71 are connected, and the door outer handle is rotated, so that the middle shifting fork 7 and the rear shifting fork 5 can be driven to move, and unlocking is realized. In addition, the inside of the door can drive the shift lever 91 to act by rotating the knob 92 of the lock cylinder 9, thereby realizing unlocking or locking; after a specified key is inserted into the lock cylinder 9, the lock can be unlocked or locked by driving the shift lever 91.
Claims (1)
1. The door lock with the clutch shifting fork device comprises a front shifting fork (8), a middle shifting fork (7), a rear shifting fork (5) and a clutch block (71), wherein the front shifting fork (8) is rotationally arranged on the front side of the middle shifting fork (7), the rear shifting fork (5) is rotationally arranged on the rear side of the middle shifting fork (7), square holes penetrating through the front side and the rear side of the front shifting fork (8), the surfaces of the middle shifting fork (7) and the rear shifting fork (5) are respectively provided with a square hole, the door lock is characterized in that the periphery of the front shifting fork (8) is provided with a front transmission shifting block (81) and a front shifting arm (82), the periphery of the rear shifting fork (5) is provided with a rear transmission shifting block (52) and a rear shifting arm (53), the front side and the rear side of the middle shifting fork (7) are respectively provided with a front arc-shaped sliding groove (79) and a rear arc-shaped sliding groove (77), the front transmission shifting block (81) stretches into the front arc-shaped sliding groove (79), the clutch block (73) is disconnected with the front arc-shaped sliding block (73) and the front shifting block (81) and the rear arc-shaped sliding block (73), a sliding space is reserved between the rear transmission shifting block (52) and the rear arc chute (77);
The lengths of the front arc-shaped sliding groove (79) and the rear arc-shaped sliding groove (77) are respectively larger than the sum of the lengths of the front transmission shifting block (81), the rear transmission shifting block (52) and the clutch block (71), when the door inner handle controls the rear shifting fork (5) and the middle shifting fork (7) to rotate for unlocking, the rear shifting fork (5) and the middle shifting fork (7) can rotate relative to the front shifting fork (8) to work, and the linkage of the handle and the door outer handle during the door inner opening is avoided;
The clutch groove (73) is used for disconnecting the middle parts of the front arc-shaped chute (79) and the rear arc-shaped chute (77), and the front arc-shaped chute (79) is opposite to the rear arc-shaped chute (77); the outer end of the clutch block (71) is provided with a contact (711), the contact (711) extends out of the clutch groove (73), and a return spring (72) is arranged between the inner end of the clutch block (71) and the inner end of the clutch groove (73);
The periphery of the middle shifting fork (7) is also provided with an arc notch (75), and the front shifting arm (82) and the rear shifting arm (53) extend into the arc notch (75); the door lock comprises a shell (4), a clutch shifting fork device (10) is arranged in the shell (4), a reset torsion spring (30) is arranged beside the shell (4) corresponding to a front shifting arm (82) and a rear shifting arm (53), and the reset torsion spring (30) is respectively abutted against the front shifting arm (82) and the rear shifting arm (53);
The reset torsion spring (30) comprises a front torsion spring body (302) and a rear torsion spring body (301), wherein the front torsion spring body (302) and the rear torsion spring body (301) are coaxially arranged, and the front torsion spring body (302) and the rear torsion spring body (301) are respectively provided with two abutting legs; wherein, one abutting foot of the front torsion spring body (302) is connected with one abutting foot of the rear torsion spring body (301) into a whole to form a common abutting foot (303); the other abutting leg of the front torsion spring body (302) is a front abutting leg (305), and the front abutting leg (305) abuts against the front shifting arm (82) of the front shifting fork (8); the other abutting leg of the rear torsion spring body (301) is a rear abutting leg (304), and the rear abutting leg (304) abuts against a rear shifting arm (53) of the rear shifting fork (5); a positioning shaft is arranged in the shell (4), and a reset torsion spring (30) is sleeved outside the positioning shaft;
The front abutting leg (305) and the rear abutting leg (304) of the reset torsion spring (30) are L-shaped, one sides of the front poking arm (82) and the rear poking arm (53) are provided with positioning grooves (531), the front abutting leg (305) abuts against the positioning grooves (531) of the front poking arm (82), and the rear abutting leg (304) abuts against the positioning grooves (531) of the rear poking arm (53);
the periphery of the front shifting fork (8) corresponds to the side of the front shifting arm (82), and the periphery of the rear shifting fork (5) corresponds to the side of the rear shifting arm (53) and is provided with an anti-unhooking hook (54);
The door lock comprises a lock tongue transmission mechanism (3), an inclined tongue (2) and a square tongue (32), wherein the square tongue (32) is in transmission connection with the lock tongue transmission mechanism (3), the inclined tongue (2) and the lock tongue transmission mechanism (3) are transmitted through a front shifting sheet (1), and an inclined tongue unlocking shifting block (78) for shifting the front shifting sheet (1) is arranged at the front side of a middle shifting fork (7); the lock tongue transmission mechanism (3) is provided with a square tongue locking shifting piece (34), the rear side of the middle shifting fork (7) is provided with a rear shifting piece (6) and a square tongue driving shifting piece (76) for shifting the rear shifting piece (6), and the rear shifting piece (6) is meshed with the square tongue locking shifting piece (34) through a tooth surface;
The door lock also comprises an outer door handle and an inner door handle, wherein a front shaft is arranged in the outer door handle and is in plug-in fit with a square hole of the front shifting fork (8); a rear shaft is arranged in the door inner handle, and is in plug-in fit with a square hole of the rear shifting fork (5) and a square hole of the middle shifting fork (7);
the front side surface of the rear shifting sheet (6) is provided with a shifting rod (63), and the shifting rod (63) extends into an arc-shaped notch (75) of the middle shifting fork (7);
The front shifting piece (1) is provided with a bevel tongue shifting foot (13) and a touch foot (11) at the periphery, a through hole is formed in the middle of the front shifting piece (1), the through hole is sleeved on the periphery of the front shifting fork (8) and is in turnover fit with the periphery of the front shifting fork (8), a front arc-shaped limit groove (12) is formed in the surface of the front shifting piece (1) corresponding to the periphery of the through hole, and the bevel tongue unlocking shifting block (78) extends into the front arc-shaped limit groove (12); the inclined tongue poking foot (13) is in transmission connection with the inclined tongue (2), and the touch foot (11) is in transmission connection with the lock tongue transmission mechanism (3);
The periphery of the rear shifting piece (6) is provided with a first sector tooth surface (61), the middle part of the rear shifting piece (6) is provided with a through hole, the through hole is sleeved on the periphery of the rear shifting fork (5) and is in epicyclic fit with the periphery of the rear shifting fork (5), the surface of the rear shifting piece (6) is provided with a rear arc limiting groove (62) corresponding to the periphery of the through hole, and the square tongue driving shifting block (76) extends into the rear arc limiting groove (62); the periphery of a dead bolt upper locking pulling piece (34) of the dead bolt transmission mechanism (3) is provided with a second sector tooth surface which is meshed with the first sector tooth surface (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483286.6A CN110185318B (en) | 2019-06-04 | 2019-06-04 | Door lock with clutch shifting fork device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910483286.6A CN110185318B (en) | 2019-06-04 | 2019-06-04 | Door lock with clutch shifting fork device |
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| CN110185318A CN110185318A (en) | 2019-08-30 |
| CN110185318B true CN110185318B (en) | 2024-07-09 |
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| CN110541618A (en) * | 2019-09-23 | 2019-12-06 | 广东科徕尼智能科技有限公司 | Intelligent lock with idle stroke |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206903401U (en) * | 2017-07-01 | 2018-01-19 | 中山欧朗金属制品有限公司 | Electronic lock clutch pull-fork assembly |
| CN208329917U (en) * | 2018-05-09 | 2019-01-04 | 中山市福祥来锁业有限公司 | Multi-bolt electronic lock body with clutch |
| CN210289395U (en) * | 2019-06-04 | 2020-04-10 | 中山市皇鼎五金制品有限公司 | Clutch fork device of door lock |
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| CN107178256B (en) * | 2017-07-01 | 2018-12-28 | 中山欧朗金属制品有限公司 | Electronic lock clutch pull-fork assembly |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206903401U (en) * | 2017-07-01 | 2018-01-19 | 中山欧朗金属制品有限公司 | Electronic lock clutch pull-fork assembly |
| CN208329917U (en) * | 2018-05-09 | 2019-01-04 | 中山市福祥来锁业有限公司 | Multi-bolt electronic lock body with clutch |
| CN210289395U (en) * | 2019-06-04 | 2020-04-10 | 中山市皇鼎五金制品有限公司 | Clutch fork device of door lock |
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