CN211818729U

CN211818729U - Electric door lock

Info

Publication number: CN211818729U
Application number: CN202020066275.6U
Authority: CN
Inventors: 许君淮; 杨建英; 张敏德
Original assignee: Zhejiang Hongtai Electronics Equipment Co ltd
Current assignee: Zhejiang Hongtai Electronics Equipment Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-30
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses an electric door lock, including the lock shell, be provided with spring bolt, motor and clutching mechanism on the lock shell, clutching mechanism is including mounting bracket, input gear, output gear, motor gear, clutch wheel, clutch washer, be provided with on the input gear to the convex first lug of clutch wheel direction, be provided with on the clutch wheel to the convex second lug of input gear direction, and first lug forms the butt with the second lug after along with input gear rotates, clutch wheel all is provided with the transition inclined plane between the axial terminal surface of input gear and the second lug both sides, and promotes clutch wheel to clutch washer direction axial displacement when first lug removes to transition inclined plane on to make the projection on the clutch wheel pass in the washer jack inserts the gear jack, through adopting above-mentioned structure, the utility model discloses a clutching mechanism is simple more reliable.

Description

Electric door lock

Technical Field

The utility model relates to a tool to lock, concretely relates to electric door lock.

Background

At present, an electric door lock generally comprises a lock shell, wherein a bolt, a motor and a clutch mechanism are arranged on the lock shell, the input end of the clutch mechanism is linked with the motor, and the output end of the clutch mechanism is linked with the bolt through a linkage mechanism, so that the motor works to drive the bolt to stretch and retract, and the door opening and closing operation is realized. However, most of the existing clutch mechanisms are complex in structure and poor in reliability, and have improvement space. In addition, the general shift fork gear that has current handle pivot meshes with the output gear of clutching mechanism output mutually, and shift fork gear is fixed mutually with the handle pivot, consequently unblanks the back at the motor, in case the motor breaks down, clutching mechanism also will be fixed to lead to the handle pivot also will unable rotation, and then even make people also unable open the door through rotating the handle in the door, there is the defect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a clutch mechanism is simple reliable, and the handle unblanks and the motor unblanks electric door lock of mutual noninterference.

In order to achieve the above object, the present invention provides an electric door lock, which comprises a lock case, wherein the lock case is provided with a lock tongue, a motor and a clutch mechanism, the clutch mechanism comprises a mounting frame, an input gear, an output gear, a motor gear, a clutch wheel and a clutch washer, the mounting frame is fixedly arranged in the lock case, the mounting frame is fixedly provided with a fixed column, the input gear and the output gear are rotatably sleeved on the fixed column, the fixed column axially limits the input gear and the output gear, the motor gear is sleeved on a motor output shaft and is in meshing linkage with the input gear, the clutch wheel and the clutch washer are both sleeved on the fixed column, the clutch wheel is correspondingly positioned between the clutch washer and the input gear, the clutch washer is correspondingly positioned between the clutch wheel and the output gear, the clutch washer is provided with a washer jack axially communicated, the clutch wheel is provided with a convex column inserted into the washer jack, the output gear is correspondingly provided with a gear jack for inserting the convex column, the input gear is provided with a first convex block protruding towards the direction of the clutch wheel, the clutch wheel is provided with a second convex block protruding towards the direction of the input gear, the first convex block and the second convex block form butt joint after rotating along with the input gear, the clutch wheel is provided with a transition inclined plane between the axial end face of the input gear and the two sides of the second convex block, and when the first convex block moves to the transition inclined plane, the clutch wheel is pushed to axially move towards the direction of the clutch washer, the convex column on the clutch wheel penetrates through the washer jack and is inserted into the gear jack, a compression spring is arranged between the clutch wheel and the clutch washer, and linkage is realized between the output gear and the lock tongue through a linkage mechanism.

The utility model has the advantages that: adopt above-mentioned structure, the motor works, it is rotatory to drive input gear through the motor gear, thereby make first lug rotate along with input gear, and then make first lug and second lug form the butt, and under the effect on transition inclined plane, the effort that promotes the clutch pulley and overcome compression spring is to clutch washer direction axial displacement, thereby make projection on the clutch pulley pass the packing ring jack and insert in the gear jack, and then with the clutch pulley, clutch washer and output gear combine together, make it follow input gear and rotate together, then drive the spring bolt motion under link gear's linkage cooperation, the realization is opened the door. Compare traditional structure, the utility model provides a clutch mechanism is simple reliable more.

The utility model discloses can further set up as clutching mechanism is still including friction preforming and gyro wheel, the mounting bracket on be fixed with the reference column, the one end of friction preforming articulates on the reference column, the gyro wheel is installed on the other end of friction preforming to form the butt with the outer periphery of clutch washer, still installed on the reference column and impel the gyro wheel keeps the location torsional spring of butt with the outer periphery of clutch washer, it has a plurality of confessions still to distribute on the outer periphery of clutch washer the location notch of gyro wheel part embedding.

By adopting the structure, when the roller part is embedded into the positioning notch of the clutch washer, the temporary positioning can be formed on the clutch washer, so that the convex column on the clutch wheel can smoothly penetrate through the washer jack and be inserted into the gear jack, and the clutch wheel, the clutch washer and the output gear are combined together.

The utility model can be further arranged that the lock tongue comprises a main lock tongue and an oblique tongue, the main lock tongue and the oblique tongue are all arranged on the lock shell in a penetrating way, the inner end of the main lock tongue is provided with a lock tongue support, the inner end of the oblique tongue is connected with an oblique tongue pulling plate, the oblique tongue pulling plate is also connected with an oblique tongue torsional spring for promoting the oblique tongue to extend out of the lock shell, the linkage mechanism comprises a shifting fork gear, a handle gear, an oblique tongue shifting sleeve and a lock plate, the lock shell is provided with a handle rotating shaft, the shifting fork gear, the handle gear and the oblique tongue shifting sleeve are all rotatably sleeved on the handle rotating shaft, a fixed shaft is also fixedly arranged in the lock shell, the lock plate is rotatably sleeved on the fixed shaft, a gear part which forms a meshing linkage with the handle gear is correspondingly arranged on the lock plate, a lock plate convex column is also arranged on the lock tongue, a support sliding chute which forms a sliding fit with the lock plate convex column is, wherein the first radial extending end is connected with the lock tongue support through an inclined push plate, the second radial extending end is abutted against an inclined tongue pull plate, a handle gear pushing part which acts on the second radial extending end after the handle gear rotates and enables the second radial extending end to press the inclined tongue pull plate inwards is arranged on the handle gear, the handle gear pushing part is correspondingly positioned between the first radial extending end and the second radial extending end, the shifting fork gear and the output gear form meshing linkage, a shifting fork gear pushing part which is abutted against the third radial extending end after the shifting fork gear rotates is arranged on the shifting fork gear, a gear abutting part which forms abutting joint with the shifting fork gear pushing part is correspondingly arranged on the handle gear, a first radial protruding part and a second radial protruding part are arranged on a handle rotating shaft, and a shifting sleeve abutting joint part which forms abutting joint with the first radial protruding part is correspondingly arranged on the inclined tongue shifting sleeve, the second radial protrusion abuts the handle gear pushing portion.

By adopting the structure, under the normal condition, the motor drives the clutch mechanism to work, the output gear rotates to drive the shifting fork gear to rotate, the shifting fork gear correspondingly pushes the handle gear and the latch bolt shifting sleeve to rotate through the shifting fork gear pushing part on the shifting fork gear, so that the latch bolt pulling plate and the latch bolt support are driven to move inwards, the retraction of the latch bolt and the main latch bolt is realized, and the door lock is opened. In addition, if the motor is out of order after unblanking, under the fixed circumstances appears in the shift fork gear promptly, because the utility model discloses well shift fork gear only rotates the suit in the handle pivot, and not fixed mutually with the handle pivot, therefore the handle pivot still can rotate this moment, thereby dial set butt portion cooperation through first radial protruding portion on the handle pivot and latch bolt dial cover on, can correspondingly promote latch bolt dial set and rotate, latch bolt dial set rotates the back, can promote latch bolt arm-drag board inward movement through the radial extension end of the second on it, the radial protruding portion of second is used in handle gear pushing portion simultaneously, thereby it is rotatory to promote the handle gear, drive the jam plate rotation under the effect of meshing linkage, and then drive the latch bolt support inward movement, therefore realized the retraction of latch bolt and spring bolt owner, the lock is opened. The utility model discloses an above-mentioned structure's setting for the handle is unblanked and the motor is unblanked mutually noninterfere.

The utility model discloses still can further set up to spring bolt support on still be provided with and form the straight line complex support sharp spout that slides with the fixed axle. The arrangement makes the extension of the bolt bracket and the main bolt more stable and more guiding.

The utility model discloses still can further set up to be fixed with the turning block on the latch tongue arm-tie, seted up on the turning block and rotated the groove, the inner rotation cartridge of latch tongue is at rotating the inslot, through the bolt radial fixation between latch tongue inner and the turning block, and corresponds on the turning block and be provided with two and supply bolt male bolt holes, and two bolt holes are divided and are established at the radial both ends of latch tongue. By adopting the structure, the bolt is inserted from different bolt holes, and then the latch bolt is correspondingly rotated to realize the insertion and fixation with the bolt, so that the inclined direction of the inclined plane on the latch bolt can be correspondingly adjusted, namely the mounting direction of the latch bolt can be adjusted according to the requirement.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a partial structure diagram of the present invention;

FIG. 3 is a partial structural view of the present invention;

FIG. 4 is a structural view of the motor and clutch mechanism;

FIG. 5 is a structural view of the motor and clutch mechanism;

FIG. 6 is an exploded view of the clutch mechanism;

FIG. 7 is a structural view of a clutch pulley;

FIG. 8 is an exploded view of the linkage;

FIG. 9 is a structural view of the latch portion;

FIG. 10 is a partial exploded view of the latch portion;

fig. 11 is a structural view of a handle rotation shaft.

Detailed Description

As shown in fig. 1-11, an electric door lock is provided, which includes a lock case 1, a latch, a motor 3 and a clutch mechanism 4 are disposed on the lock case 1, the clutch mechanism 4 includes a mounting bracket 41, an input gear 42, an output gear 43, a motor gear 44, a clutch wheel 45 and a clutch washer 46, the mounting bracket 41 is fixedly disposed in the lock case 1, a fixing post 47 is fixed on the mounting bracket 41, the input gear 42 and the output gear 43 are rotatably sleeved on the fixing post 47, the fixing post 47 axially limits the input gear 42 and the output gear 43, the motor gear 44 is sleeved on an output shaft of the motor 3 and forms a meshing linkage with the input gear 42, the clutch wheel 45 and the clutch washer 46 are respectively sleeved on the fixing post 47, the clutch wheel 45 is correspondingly disposed between the clutch washer 46 and the input gear 42, the clutch washer 46 is correspondingly disposed between the clutch wheel 45 and the output gear 43, the clutch washer 46 is provided with a washer insertion hole 461 which axially penetrates, the clutch wheel 45 is provided with a convex column 451 which is inserted into the washer insertion hole 461, the output gear 43 is correspondingly provided with a gear insertion hole 431 which is used for inserting the convex column 451, the input gear 42 is provided with a first convex block 421 which is convex towards the clutch wheel 45, the clutch wheel 45 is provided with a second convex block 452 which is convex towards the input gear 42, the first convex block 421 is abutted against the second convex block 452 after rotating along with the input gear 42, a transition inclined plane 453 is arranged between the axial end surface of the clutch wheel 45 facing the input gear 42 and two sides of the second convex block 452, when the first convex block 421 moves to the transition inclined plane 453, the clutch wheel 45 is pushed to axially move towards the clutch washer 46, the convex column 451 on the clutch wheel 45 penetrates through the washer insertion hole 461 and is inserted into the gear insertion hole 431, a compression spring 48 is arranged between the clutch wheel 45 and the clutch washer 46, the output gear 43 and the bolt are linked through a linkage mechanism 5.

Adopt above-mentioned structure, motor 3 works, it is rotatory to drive input gear 42 through motor gear 44, thereby make first lug 421 rotate along with input gear 42, and then make first lug 421 and second lug 452 form the butt, and under the effect of transition inclined plane 453, promote clutch wheel 45 and overcome the effort of compression spring 48 to clutch washer 46 direction axial displacement, thereby make projection 451 on the clutch wheel 45 pass in packing ring jack 461 inserts gear jack 431, and then combine clutch wheel 45, clutch washer 46 and output gear 43 together, make it follow input gear 42 and rotate together, then drive the spring bolt motion under the linkage cooperation of link gear 5, realize opening the door. Compare traditional structure, the utility model provides a clutch mechanism is simple reliable more.

The clutch mechanism further comprises a friction pressing sheet 49 and a roller 491, a positioning column 411 is fixed on the mounting frame 41, one end of the friction pressing sheet 49 is hinged on the positioning column 411, the roller 491 is arranged at the other end of the friction pressing sheet 49 and is abutted against the outer circumferential surface of the clutch washer 46, a positioning torsion spring 492 for keeping the roller 491 abutted against the outer circumferential surface of the clutch washer 46 is further arranged on the positioning column 411, and a plurality of positioning notches 462 for embedding the roller 491 are further distributed on the outer circumferential surface of the clutch washer 46.

With the above-mentioned structure, when the roller 491 is partially inserted into the positioning recess 462 of the clutch washer 46, the clutch washer 46 can be temporarily positioned, thereby facilitating the smooth insertion of the convex pillar 451 of the clutch wheel 45 into the gear insertion hole 431 through the washer insertion hole 461, and further combining the clutch wheel 45, the clutch washer 46 and the output gear 43.

The lock tongue comprises a main lock tongue 6 and an oblique tongue 7, the main lock tongue 6 and the oblique tongue 7 are both arranged on the lock shell 1 in a penetrating way, the inner end of the main lock tongue 6 is provided with a lock tongue support 8, the inner end of the oblique tongue 7 is connected with an oblique tongue pulling plate 9, the oblique tongue pulling plate 9 is also connected with an oblique tongue torsion spring 91 for promoting the oblique tongue 7 to extend out of the lock shell 1, the linkage mechanism 5 comprises a shifting fork gear 51, a handle gear 52, an oblique tongue shifting sleeve 53 and a locking plate 54, the lock shell 1 is provided with a handle rotating shaft 55, the shifting fork gear 51, the handle gear 52 and the oblique tongue shifting sleeve 53 are all rotatably sleeved on the handle rotating shaft 55, the lock shell 1 is also fixedly provided with a fixed shaft 56, the locking plate 54 is rotatably sleeved on the fixed shaft 56, the locking plate 54 is correspondingly provided with a 541 which forms a meshing linkage gear part with the handle gear 52, the locking plate 54 is also provided with a locking plate convex column 542, the lock tongue support 8 is correspondingly provided with a support convex column 81, the latch bolt shifting sleeve 53 is provided with three radial extending ends, wherein a first radial extending end 531 is connected with the lock bolt support 8 through a latch bolt pushing plate 10, a second radial extending end 532 abuts against the latch bolt pulling plate 9, a handle gear 52 is provided with a handle gear pushing part 521 which acts on the second radial extending end 532 after the handle gear rotates and enables the second radial extending end 532 to press the latch bolt pulling plate 9 inwards, the handle gear pushing part 521 is correspondingly positioned between the first radial extending end 531 and the second radial extending end 532, the shifting fork gear 51 and the output gear 43 form meshing linkage, the shifting fork gear 51 is provided with a shifting fork gear pushing part 511 which abuts against the third radial extending end 533 after the shifting fork gear rotates, the handle gear 52 is correspondingly provided with a gear abutting part 522 which forms abutting joint with the shifting fork gear pushing part 511, a first radial protruding part 551 and a second radial protruding part 552 are arranged on the handle rotating shaft 55, the latch pull sleeve 53 is correspondingly provided with a pull sleeve abutting part 534 abutting against the first radial protrusion 551, and the second radial protrusion 552 abuts against the handle gear pushing part 521.

By adopting the structure, under the normal condition, the motor 3 drives the clutch mechanism 4 to work, the output gear 43 rotates to drive the shifting fork gear 51 to rotate, the shifting fork gear 51 correspondingly pushes the handle gear 52 and the latch bolt shifting sleeve 53 to rotate through the shifting fork gear pushing part 511 on the shifting fork gear 51, so that the latch bolt pulling plate 9 and the latch bolt support 8 are driven to move inwards, the retraction of the latch bolt 7 and the main latch bolt 6 is realized, and the door lock is opened. In addition, if the motor 3 fails after being unlocked, that is, the shift fork gear 51 is fixed, because the shift fork gear 51 of the present invention is only rotatably sleeved on the handle rotating shaft 55, but not fixed with the handle rotating shaft 55, at this time, the handle rotating shaft 55 can still rotate, so that the latch bolt pulling plate 9 can be pushed to move inwards by the first radial extending end 532 on the latch bolt shifting sleeve 53 through the cooperation of the first radial protruding part 551 on the handle rotating shaft 55 and the shifting sleeve abutting part 534 on the latch bolt shifting sleeve 53, and the latch bolt shifting sleeve 53 can correspondingly push to rotate, after rotating, the latch bolt pulling plate 53 can be pushed to move inwards by the second radial extending end 532 thereon, and meanwhile, the second radial protruding part 552 acts on the handle gear pushing part 521, so as to push the handle gear 52 to rotate, and drive the locking plate 54 to rotate under the meshing linkage effect, and further drive the latch bolt bracket 8 to move inwards, thereby realizing retraction of the latch bolt 7 and the main latch bolt 6, the door lock is opened. The utility model discloses an above-mentioned structure's setting for the handle is unblanked and the motor is unblanked mutually noninterfere.

The bolt support 8 is also provided with a support linear sliding chute 82 which forms linear sliding fit with the fixed shaft 56. The arrangement makes the extension and retraction of the bolt bracket 8 and the main bolt 6 more stable and more guiding.

The latch pull plate 9 is fixed with a rotating block 92, the rotating block 92 is provided with a rotating groove 93, the inner end 71 of the latch 7 is rotatably inserted into the rotating groove 93, the inner end 71 of the latch is radially fixed with the rotating block 92 through a bolt 11, the rotating block 92 is correspondingly provided with two bolt holes 94 for inserting the bolt 11, and the two bolt holes 94 are respectively arranged at the radial two ends of the latch 7. By adopting the structure, the bolt 11 is inserted into different bolt holes 94, and then the latch tongue 7 is correspondingly rotated to realize the inserting and fixing with the bolt 11, so that the inclination direction of the inclined surface 72 on the latch tongue 7 can be correspondingly adjusted, namely the installation direction of the latch tongue 7 can be adjusted according to the requirement.

Claims

1. The utility model provides an electric door lock, is provided with spring bolt, motor and clutching mechanism, its characterized in that including the lock shell on the lock shell: the clutch mechanism comprises a mounting frame, an input gear, an output gear, a motor gear, a clutch wheel and a clutch washer, wherein the mounting frame is fixedly arranged in the lock shell, a fixed column is fixed on the mounting frame, the input gear and the output gear are rotatably sleeved on the fixed column, the fixed column axially limits the input gear and the output gear, the motor gear is sleeved on an output shaft of the motor and is meshed and linked with the input gear, the clutch wheel and the clutch washer are sleeved on the fixed column, the clutch wheel is correspondingly positioned between the clutch washer and the input gear, the clutch washer is correspondingly positioned between the clutch wheel and the output gear, the clutch washer is provided with a washer jack which is axially communicated, the clutch wheel is provided with a convex column which is inserted into the washer jack, the output gear is correspondingly provided with a gear jack into which the convex column is inserted, the input gear is provided with a first convex block which protrudes towards the clutch wheel, the clutch wheel is provided with a second convex block protruding towards the direction of the input gear, the first convex block is abutted against the second convex block after rotating along with the input gear, a transition inclined plane is arranged between the axial end face of the clutch wheel facing the input gear and the two sides of the second convex block, and the clutch wheel is pushed to axially move towards the direction of the clutch washer when the first convex block moves to the transition inclined plane, a convex column on the clutch wheel penetrates through a washer jack and is inserted into the gear jack, a compression spring is arranged between the clutch wheel and the clutch washer, and linkage is realized between the output gear and the lock tongue through a linkage mechanism.

2. An electric door lock according to claim 1, characterized in that: the clutch mechanism further comprises a friction pressing sheet and a roller, a positioning column is fixed on the mounting frame, one end of the friction pressing sheet is hinged to the positioning column, the roller is installed at the other end of the friction pressing sheet and is abutted to the outer circumferential surface of the clutch washer, a positioning torsion spring for enabling the roller to be abutted to the outer circumferential surface of the clutch washer is further installed on the positioning column, and a plurality of positioning notches for enabling the roller to be partially embedded are further distributed in the outer circumferential surface of the clutch washer.

3. An electric door lock according to claim 1 or 2, characterized in that: the lock tongue comprises a main lock tongue and an oblique tongue, the main lock tongue and the oblique tongue are all arranged on a lock shell in a penetrating way, the inner end of the main lock tongue is provided with a lock tongue support, the inner end of the oblique tongue is connected with an oblique tongue pulling plate, the oblique tongue pulling plate is also connected with an oblique tongue torsion spring for promoting the oblique tongue to extend out of the lock shell, the linkage mechanism comprises a shifting fork gear, a handle gear, an oblique tongue shifting sleeve and a lock plate, the lock shell is provided with a handle rotating shaft, the shifting fork gear, the handle gear and the oblique tongue shifting sleeve are all rotatably sleeved on the handle rotating shaft, a fixed shaft is also fixedly arranged in the lock shell, the lock plate is rotatably sleeved on the fixed shaft, the lock plate is correspondingly provided with a gear part which is meshed and linked with the handle gear, the lock plate is also provided with a lock plate convex column, the lock tongue support is correspondingly provided with a support sliding chute which is matched with the lock plate convex column in a sliding way, the oblique tongue shifting sleeve is provided, the second radial extension end is abutted against the latch pull plate, the handle gear is provided with a handle gear pushing part which acts on the second radial extension end after the handle gear rotates and causes the second radial extension end to press the latch pull plate inwards, the handle gear pushing part is correspondingly positioned between the first radial extending end and the second radial extending end, the shifting fork gear and the output gear form meshing linkage, the shifting fork gear is provided with a shifting fork gear pushing part which is pressed against the third radial extending end after rotating, the handle gear is correspondingly provided with a gear abutting part which forms abutting joint with the shifting fork gear pushing part, a handle rotating shaft is provided with a first radial protruding part and a second radial protruding part, the latch bolt shifting sleeve is correspondingly provided with a shifting sleeve abutting part which forms abutting joint with the first radial protruding part, and the second radial protruding part abuts joint with the handle gear pushing part.

4. A power door lock according to claim 3, wherein: the bolt support on still be provided with and form the support sharp spout that the straight line slided the complex with the fixed axle.

5. A power door lock according to claim 3, wherein: the bolt pulling plate is characterized in that a rotating block is fixed on the bolt pulling plate, a rotating groove is formed in the rotating block, the inner end of the bolt is rotatably inserted into the rotating groove, the inner end of the bolt is radially fixed with the rotating block through a bolt, two bolt holes for inserting the bolt are correspondingly formed in the rotating block, and the two bolt holes are respectively formed in the two radial ends of the bolt.