CN221315882U - Manual-automatic integrated vehicle seat angle adjuster - Google Patents

Abstract

A manual-automatic integrated vehicle seat angle adjuster comprises a connecting side plate connected to a vehicle seat backrest; an upper receiving case provided at an upper position of the connection side plate; the driving plate can drive the connecting side plate to rotate; the tooth shell assembly comprises a movable tooth shell and a fixed tooth shell, and the movable tooth shell is matched with the driving plate; the power transmission assembly is used for driving the movable gear shell to eccentrically move relative to the fixed gear shell; an unlocking rotary member provided with a rotary shaft and a transmission arm; the unlocking linkage assembly comprises a linkage plate, a locking arm and a hinge shaft, wherein the linkage plate is connected to the transmission arm of the unlocking rotary piece in a matched mode, the locking arm is hinged with the linkage plate and is also sleeved on the hinge shaft in a rotating mode, and the locking arm can be locked or separated from the driving plate; and the travel limit baffle is used for limiting the rotation angle of the driving plate. The advantages are that: realizing electric and manual adjustment and switching; the anti-backlash effect is good, the safety is good, and the riding comfort is improved.

Description

Manual-automatic integrated vehicle seat angle adjuster

Technical Field

The utility model belongs to the technical field of vehicle accessories, and particularly relates to a manual-automatic integrated vehicle seat angle adjuster.

Background

Today, the economic society is gradually developed, and automobiles are increasingly popular with people as transportation means for facilitating travel in daily life of people and become a necessity for family life. While passenger or commercial vehicles such as automobiles are often equipped with recliners that adjust the angle of the seat back to conform the seat back to the comfort curve of the human back. With the continuous perfection of modern electric automation technology and the high-speed development of new energy automobile industry, the demand of people for automobile seat adjustment automation is higher and higher, and the electric angle adjuster is favored by the mass manufacturers because of the advantages of compact structure, small volume, space saving, low production cost and the like, and the electric angle adjuster which is only originally equipped on some high-grade luxury cars is also the standard of some middle-low grade cars. The electric angle adjuster can realize stepless precise adjustment of the backrest of the vehicle seat, has good comfort, and ensures that the seat cannot shake when the vehicle seat is in a static state.

The Chinese patent with the publication number of CN218805360U discloses a high-strength continuous electric angle adjuster, which comprises a fixed disc and a movable disc, wherein the inner edge surface of the movable disc is provided with a bushing, the center of the fixed disc is axially provided with a hole flanging, the movable disc is arranged between the hole flanging and the fixed disc, the fixed disc is provided with a cladding so that the movable disc cannot be separated from the fixed disc, the side surface of the hole flanging is provided with two wedge-shaped blocks contacted with the bushing, so that the fixed disc and the movable disc are eccentric, one side of the movable disc is meshed with the fixed disc, and the two wedge-shaped blocks are elastically connected; it has the advantage of being convenient for production and processing. However, the technical scheme of the utility model has the general problems of the electric angle adjuster: the existing electric angle adjusters drive the angle adjusters to drive the seat back to rotate by utilizing the motor device, so that the seat back rotates continuously and stably but at a slower speed, and the time consumption is long and related use requirements cannot be met under the conditions such as the condition that a driver lies down to rest or the driver goes in and out; in addition, in some emergency situations such as collision fire or flooding, the electric angle adjuster is influenced by power failure and can not adjust the backrest due to self-locking of the internal components, so that the backrest can not be adjusted, the escape space of a driver and passengers is limited, passengers are influenced by extreme conditions to escape, unnecessary casualties are caused, and safety cannot be guaranteed.

In view of the above-described prior art, there is a need for a reasonable improvement in the structure of an existing electric recliner for car seats. To this end, the inventors have advantageously devised that the technical solutions described below are created in this context.

Disclosure of utility model

The utility model aims to provide the manual-automatic integrated vehicle seat angle adjuster which is compact in structure, comfortable to adjust, good in clearance eliminating effect and good in safety, is beneficial to realizing electric and manual adjustment and switching of a vehicle seat backrest by additionally arranging an independent unlocking mechanism so as to meet different use scene requirements, and is beneficial to realizing tight engagement of a fixed tooth shell and a movable tooth shell so as to ensure that the seat backrest cannot shake to ensure riding comfort.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a manual-automatic vehicle seat recliner comprising: a connecting sideboard connected to the vehicle seat back; the upper accommodating shell is arranged at the upper part of the connecting side plate, and a shell inner cavity is formed between the upper accommodating shell and the plate body of the connecting side plate; the driving plate is arranged at one side of the connecting side plate and corresponds to the lower position of the upper accommodating shell, and the driving plate can drive the connecting side plate to rotate; the tooth shell assembly is arranged at one side of the driving plate away from the connecting side plate and comprises a movable tooth shell and a fixed tooth shell which are matched to form a differential planetary gear transmission structure, and the movable tooth shell and the driving plate are matched and installed together; the power transmission assembly is arranged at one side of the tooth shell assembly, which is far away from the driving plate, and is in transmission connection with the electric driving device and used for driving the movable tooth shell to eccentrically move relative to the fixed tooth shell; the unlocking rotating piece is provided with a rotating shaft and a transmission arm which are integrally formed together, the rotating shaft penetrates through the connecting side plate and stretches into the inner cavity of the shell, the rotating shaft is rotationally connected with the connecting side plate, and the transmission arm is formed on the shaft body of the rotating shaft and is positioned and arranged in the inner cavity of the shell; the unlocking linkage assembly is arranged in the inner cavity of the shell and comprises a linkage plate, a locking arm and an anti-backlash hinge shaft, two ends of the anti-backlash hinge shaft are respectively connected to the connecting side plate and the upper accommodating shell in a pivoted mode, one end part of the linkage plate in the length direction is connected to the end part of the transmission arm of the unlocking rotary piece in a matched mode, one end part of the locking arm is hinged to the linkage plate, the other end part of the locking arm is rotatably sleeved on the anti-backlash hinge shaft, the locking arm can eccentrically rotate around the anti-backlash hinge shaft, and the locking arm can be locked or separated from the driving plate; the travel limit baffle is arranged at one side of the connecting side plate and is used for limiting the rotation angle of the driving plate.

In a specific embodiment of the utility model, a rotating shaft matching sleeve is arranged on the plate body of the connecting side plate and at a position corresponding to the rotating shaft of the unlocking rotating piece, the rotating shaft matching sleeve penetrates through the connecting side plate along the horizontal direction and stretches into the inner cavity of the shell, and the rotating shaft of the unlocking rotating piece penetrates through the rotating shaft matching sleeve and is in rotating fit with the rotating shaft matching sleeve; the rotating shaft matching sleeve is positioned on the sleeve body of the inner cavity of the shell, a transmission arm reset torsion spring is further arranged on the sleeve body, a vertical state is formed between the rotating shaft of the unlocking rotating piece and the transmission arm, a transmission arm reset protruding block is formed on the surface of the opposite side of the transmission arm, which is opposite to the connecting side plate, in a protruding mode, a reset torsion spring abutting protruding block is formed on the surface of the connecting side plate, which faces the upper accommodating shell, at a position close to the rotating shaft matching sleeve in a protruding mode, and two end portions of the transmission arm reset torsion spring are respectively hooked on the transmission arm reset protruding block and the reset torsion spring abutting protruding block.

In another specific embodiment of the present utility model, a transmission arm connection block is further formed at an end portion of the transmission arm of the unlocking rotation member, which is far away from the rotation shaft, and a linkage plate connection hole is formed at an end portion of the unlocking linkage assembly, which is far away from the linkage plate, and the transmission arm connection block is cooperatively disposed in the linkage plate connection hole, so as to realize transmission connection between the transmission arm and the linkage plate; the other end of the linkage plate in the length direction is provided with a linkage plate guide frame extending along the length direction, a linkage plate positioning protruding block is formed on the plate body of the connecting side plate and is also protruding at a position close to the linkage plate guide frame, and the linkage plate guide frame is abutted on the outer peripheral side surface of the linkage plate positioning protruding block.

In another specific embodiment of the present utility model, a locking arm locking groove is formed on a portion, close to the driving plate, of the locking arm body of the unlocking linkage assembly, and a driving plate protrusion is formed at a lower portion of the driving plate in a protruding manner, the driving plate protrusion has a square-shaped structure, and the driving plate protrusion is provided with a driving plate protrusion locking portion which is matched with the locking arm locking groove in shape, and the driving plate protrusion locking portion can be embedded in the locking arm locking groove, so that locking of the driving plate and the locking arm is achieved; the driving plate lug is also provided with a driving plate lug gap eliminating part, a gap eliminating cam is arranged on the connecting side plate and at a position close to the driving plate lug gap eliminating part, the gap eliminating cam is connected with the connecting side plate through a gap eliminating cam connecting shaft penetrating through the center of the gap eliminating cam, and the driving plate lug gap eliminating part is attached to the surface of the gap eliminating cam; the axle body of the clearance eliminating hinge shaft of the unlocking linkage assembly is also sleeved with a plate spring part, and one end part of the plate spring part, which is far away from the clearance eliminating hinge shaft, is bent and abutted to the driving plate lug.

In still another specific embodiment of the present utility model, a pair of driving plate limiting stop protrusions are further formed on the driving plate body, two driving plate limiting stop protrusions are disposed at two side positions of the stroke limiting stop plate at intervals, and the stroke limiting stop plate is disposed between the two limiting stop protrusions; in the motion process of the driving plate, the two limiting plate limiting stop protrusions can be respectively abutted to the stroke limiting baffle plate, so that the motion stroke of the driving plate is limited.

In a further specific embodiment of the utility model, a central hole of the driving plate penetrating through the thickness direction of the driving plate is further formed in the central position of the driving plate, and a connecting side plate positioning shaft sleeve is arranged on the connecting side plate and at a position corresponding to the central hole of the driving plate, and the connecting side plate positioning shaft sleeve extends into the central hole of the driving plate to be in matched connection with the central hole of the driving plate.

In a further specific embodiment of the present utility model, a movable tooth shell inner gear ring is formed inside the movable tooth shell of the tooth shell assembly, a fixed tooth shell outer gear ring is formed on the fixed tooth shell, the number of teeth of the fixed tooth shell outer gear ring is one more than the number of teeth of the movable tooth shell inner gear ring of the movable tooth shell, and a differential planetary gear transmission structure is formed between the movable tooth shell and the fixed tooth shell through the engagement of the movable tooth shell inner gear ring and the fixed tooth shell outer gear ring; a movable tooth shell shaft sleeve is formed at the center of the movable tooth shell and faces the fixed tooth shell, a movable tooth shell shaft sleeve through hole is formed in the movable tooth shell shaft sleeve, and a fixed tooth shell through hole penetrating through the thickness direction of the movable tooth shell is formed on the fixed tooth shell; and a plurality of movable tooth shell positioning convex blocks are convexly arranged on the surface of one side of the movable tooth shell, which faces the driving plate, and driving plate positioning grooves are further formed in the driving plate and at positions corresponding to the plurality of movable tooth shell positioning convex blocks, and the plurality of movable tooth shell positioning convex blocks are matched and installed in the driving plate positioning grooves, so that the driving plate is in positioning connection with the movable tooth shell.

In a further embodiment of the present utility model, the power transmission assembly includes a rotating disc, a power input sleeve, an eccentric block, a bushing, a pair of anti-backlash blocks, anti-backlash block positioning torsion springs and a power input sleeve retainer ring; the rotating disc is positioned and arranged at one side position close to the fixed tooth shell, and the power input shaft sleeve is connected at the central position of the rotating disc and penetrates through the shaft sleeve through hole of the movable tooth shell; the eccentric block is arranged in the through hole of the fixed tooth shell and is matched with the rotating disc, an eccentric block through hole penetrating through the thickness direction of the eccentric block is formed at the central position of the eccentric block, the shaft sleeve of the movable tooth shell penetrates into the through hole of the eccentric block and is in rotating fit with the through hole of the eccentric block, two eccentric surfaces symmetrically arranged along the vertical central line of the eccentric block are formed on the peripheral side surface of the eccentric block, a pair of eccentric block blocking protrusions are outwards convexly arranged on the peripheral side wall of the eccentric block, and the two eccentric block blocking protrusions are respectively formed at positions close to the eccentric surfaces on two sides; the bushing is sleeved on the inner peripheral side wall of the through hole of the fixed tooth shell; the pair of gap eliminating blocks are symmetrically arranged at the outer side positions of the eccentric surfaces on two sides of the eccentric block, the gap eliminating blocks are of waist-shaped structures, the outer side surfaces of the gap eliminating blocks are contacted with the inner peripheral side wall of the bushing, the inner side surfaces of the two gap eliminating blocks are respectively provided with a gap eliminating surface matched with the eccentric surfaces, the gap eliminating surfaces of the gap eliminating blocks are different from the outer side surfaces of the gap eliminating blocks in shape and the center lines of the gap eliminating surfaces are not on the same axis, one end part of the two gap eliminating blocks, which is close to the blocking protrusion of the eccentric block, is provided with a gap eliminating block flange, and the end part of the two gap eliminating blocks, which is far away from the blocking protrusion of the eccentric block, is provided with a torsion spring head matching groove penetrating through the thickness direction of the gap eliminating blocks; the gap eliminating block positioning torsion spring is positioned on the rotating disc, is of an integrated annular piece structure, and is provided with torsion spring heads at two end parts, wherein the torsion spring heads at two ends are respectively matched and pass through torsion spring head matching grooves of the gap eliminating blocks corresponding to the gap eliminating block positioning torsion spring; the power input shaft sleeve check ring is positioned at one side position of the movable gear shell, which is opposite to the fixed gear shell, and is matched and sleeved on the peripheral side wall of the power input shaft sleeve.

In yet another specific embodiment of the present utility model, a plurality of rotating disc protrusions are formed at a circumferential edge of a side surface of the rotating disc facing the fixed gear case in a protruding manner, the plurality of rotating disc protrusions are disposed at intervals along a circumferential direction of the rotating disc, and a fitting hole is formed between two adjacent rotating disc protrusions; a plurality of eccentric block embedding parts are outwards convexly arranged on the outer peripheral side wall of the eccentric block at positions corresponding to the embedding holes, and the eccentric block embedding parts are embedded in the embedding holes, so that the eccentric block and the rotating disc are matched and installed, and the eccentric block embedding parts are arranged between a pair of eccentric block blocking protrusions at equal intervals.

In yet another embodiment of the present utility model, the tooth shell assembly further includes a collar member having an annular configuration, the collar member being disposed around the outer circumferences of the movable and stationary tooth shells and the collar member being welded to the stationary tooth shells.

The technical scheme provided by the utility model has the technical effects that: firstly, through setting up the unblock rotating member and unblock linkage assembly, the locking arm on the unblock linkage assembly can lock together with the drive plate, and when the drive plate is in the locking state, drive power input assembly and tooth shell subassembly motion through the transmission of motor arrangement, realize the electric regulation of seat back, when needs realize the manual quick adjustment of seat back angle, the user drives the unblock linkage assembly motion through driving the unblock rotating member, realize the unblock of drive plate and locking arm, the user can realize the quick regulation and the operation of laying down of seat back through pulling the seat back upper edge, simultaneously can also ensure the security when the seat is cut off, the manual adjustment seat back of promotion use convenience behind the emergency, in addition, the technical scheme in the utility model only need add manual unlocking mechanism and just can realize the manual regulation of angle modulation ware, can realize quick simple and convenient transformation on the basis of current electric angle modulation ware, the production is convenient, simultaneously can reduce production cost; secondly, two anti-backlash blocks capable of effectively enabling the movable gear shell to eccentrically move are arranged on two sides of the eccentric block in the bushing, the anti-backlash blocks are stretched after being subjected to the outward tension of the anti-backlash block positioning torsion spring, the outward tension of the torsion spring is stable and reliable, when the automobile seat is in a static state, two opposite acting forces can be respectively applied to the fixed gear shell and the movable gear shell, the meshing tightness of the fixed gear shell and the movable gear shell is further ensured, meanwhile, due to the special cambered surface contact between the two wedge anti-backlash blocks and the eccentric block, driving hysteresis can be effectively reduced in a transmission process, the flexibility of the whole structure and the clearance elimination effect in an adjustment process are improved, the current higher collision strength requirement of the whole automobile is met, the hysteresis sense existing when the seat is subjected to motor driving reversing adjustment can be eliminated, the situations of loose abnormal sound and the like are avoided, and the driving of a human body is more comfortable; thirdly, through the anti-backlash cam body and the anti-backlash hinge shaft which are eccentrically sleeved on the anti-backlash cam connecting shaft, the locking arm can eccentrically rotate around the anti-backlash hinge shaft, the arrangement of the anti-backlash cam and the anti-backlash hinge shaft can eliminate or adjust the clearance between all transmission parts in real time, the firmness and compactness of combination are ensured, the structure is simple, the occupied space is small, the transmission error in reversing is effectively reduced, and the running stability and reliability are ensured; fourth, in the technical scheme of the utility model, the movable tooth shell and the fixed tooth shell are arranged in a cylindrical structure, the power input assembly is positioned in the cylindrical structure, the axial sealing design is realized by utilizing the rotating disc, meanwhile, the upper accommodating shell is arranged to cover the unlocking rotating member and the unlocking linkage assembly, and the angle adjuster has small outline dimension, light weight and good sealing property and can meet the requirement of light weight.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the three-dimensional structure of the present utility model;

FIG. 3 is an exploded view of the gear housing assembly and power transmission assembly of the present utility model;

FIG. 4 is an exploded view of the gear housing assembly and power transmission assembly of the present utility model at another angle;

fig. 5 is a schematic view showing an internal structure of the power transmission assembly according to the present utility model.

In the figure: 1. the device comprises a connecting side plate, a rotating shaft matching sleeve, a transmission arm reset torsion spring, a linkage plate positioning convex block, a clearance eliminating cam connecting shaft and a transmission arm reset torsion spring, wherein the transmission arm reset torsion spring is in butt joint with the convex block, the linkage plate positioning convex block is 14, the clearance eliminating cam is 141, and the side plate positioning shaft sleeve is 15; 2. an upper accommodating shell, 21. A shell inner cavity; 3. the driving plate comprises a driving plate, 31 driving plate convex blocks, 311 driving plate convex block locking parts, 312 driving plate convex block gap eliminating parts, 32 driving plate limiting baffle convex blocks, 33 driving plate center holes and 34 driving plate positioning grooves; 4. tooth shell components, 41, movable tooth shells, 411, movable tooth shell inner gear rings, 412, movable tooth shell shaft sleeves, 4121, movable tooth shell shaft sleeve through holes, 413, movable tooth shell positioning convex blocks, 42, fixed tooth shells, 421, fixed tooth shell outer gear rings, 422, fixed tooth shell through holes and 43, wrapping hoop pieces; 5. the power transmission assembly, 51, the rotating disc, 511, the rotating disc protruding block, 512, the embedded hole, 52, the power input shaft sleeve, 53, the eccentric block, 531, the eccentric block through hole, 532, the eccentric surface, 533, the eccentric block blocking protrusion, 534, the eccentric block embedded part, 54, the lining, 55, the anti-gap block, 551, the anti-gap surface, 552, the anti-gap block blocking edge, 553, the torsion spring head matching groove, 56, the anti-gap block positioning torsion spring, 561, the torsion spring head, 57, the power input shaft sleeve blocking ring. 6. Unlocking the rotating piece, 61, rotating shaft, 62, driving arm, 621, driving arm resetting protruding block, 622 and driving arm connecting block; 7. unlocking the linkage assembly, 71, a linkage plate, 711, a linkage plate connecting hole, 712, a linkage plate guide frame, 72, locking arms, 721, locking arm locking grooves, 73, a backlash eliminating hinge shaft and 731, and a plate spring piece; 8. and a travel limit baffle.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, any reference to the directional or azimuthal sense of up, down, left, right, front and rear is not to be construed as a specific limitation on the solution provided by the present utility model, since the position state of the drawing being described is defined.

Referring to fig. 1 to 2, there is shown an automated manual vehicle seat recliner comprising a connecting sideboard 1, the connecting sideboard 1 is connected to a vehicle seat back, the connecting sideboard 1 is mounted on a vehicle seat back frame by means of laser welding and can drive the vehicle seat back to rotate; the upper accommodating shell 2 is arranged at the upper part of the connecting side plate 1, and a shell inner cavity 21 is formed between the upper accommodating shell 2 and the plate body of the connecting side plate 1; a driving plate 3, wherein the driving plate 3 is arranged at one side of the connecting side plate 1 and corresponds to the lower position of the upper accommodating shell 2, and the driving plate 3 can drive the connecting side plate 1 to rotate; A gear housing assembly 4, wherein the gear housing assembly 4 is disposed at a position of the driving plate 3 away from the connecting sideboard 1, the gear housing assembly 4 comprises a movable gear housing 41 and a fixed gear housing 42 which are matched to form a differential planetary gear transmission structure, the movable gear housing 41 and the fixed gear housing 42 are both in disc-shaped structures, and the movable gear housing 41 and the driving plate 3 are matched and mounted together; the power transmission assembly 5 is arranged at one side of the tooth shell assembly 4 away from the driving plate 3, and the power transmission assembly 5 is in transmission connection with the motor driving device and is used for driving the movable tooth shell 41 to eccentrically move relative to the fixed tooth shell 42, so that the movable tooth shell 41 drives the connecting sideboard 1 to rotate; Also shown is an unlocking rotator 6, the unlocking rotator 6 having a rotation shaft 61 and a transmission arm 62 integrally formed, the rotation shaft 61 penetrating through the connection side plate 1 and penetrating into the housing cavity 21, the rotation shaft 61 being rotatably connected to the connection side plate 1, the transmission arm 62 being formed on the shaft body of the rotation shaft 61 and positioned in the housing cavity 21; An unlocking linkage assembly 7, wherein the unlocking linkage assembly 7 is arranged in the inner cavity 21 of the shell and comprises a linkage plate 71, a locking arm 72 and an anti-backlash hinge shaft 73, two ends of the anti-backlash hinge shaft 73 are respectively connected with the connecting side plate 1 and the upper accommodating shell 2 in a pivoted mode, one end part of the length direction of the linkage plate 71 is connected with the end part of the transmission arm 62 of the unlocking rotary piece 6 in a matched mode, one end part of the locking arm 72 is hinged on the linkage plate 71, the other end part of the locking arm 72 is sleeved on the anti-backlash hinge shaft 73 in an eccentric mode in a rotary mode, the locking arm 72 can rotate eccentrically around the anti-backlash hinge shaft 73, The locking arm 72 can be locked or separated from the driving plate 3, and the anti-backlash hinge shaft 73 can effectively eliminate the backlash generated during the movement; the locking arm 72 and the driving plate 3 are in a locking state and a separating state, when the locking arm 72 and the driving plate 3 are in the locking state, the connecting side plate 1 can be driven by the motor driving device and the tooth shell assembly 4 to realize electric adjustment of the angle of the seat back, when the locking arm 72 and the driving plate 3 are in the separating state, the driving plate 3 is in a free motion state, a user can manually pull the upper edge of the seat back to manually adjust the angle of the seat back, and the seat back can be quickly put down; the travel limit baffle 8 is arranged at the bottom of one side of the connecting sideboard 1, and the travel limit baffle 8 is used for limiting the rotation angle of the driving board 3.

In the present embodiment, a rotation shaft engaging sleeve 11 is disposed on the plate body of the connection side plate 1 at a position corresponding to the rotation shaft 61 of the unlocking rotation member 6, the rotation shaft engaging sleeve 11 passes through the connection side plate 1 in the horizontal direction and is inserted into the housing cavity 21, the rotation shaft 61 of the unlocking rotation member 6 is inserted into the rotation shaft engaging sleeve 11 and is in rotation engagement therewith, and a rotation shaft fixing groove for connecting with a manual cable member is further formed on the shaft body of the rotation shaft 61 away from the rotation shaft engaging sleeve 11; a transmission arm reset torsion spring 111 is further mounted on the sleeve body of the rotating shaft matching sleeve 11 located in the inner cavity 21 of the shell, a vertical state is formed between the rotating shaft 61 of the unlocking rotating member 6 and the transmission arm 62, a transmission arm reset protruding block 621 is protruding on the surface of the opposite side of the transmission arm 62 to the connecting side plate 1, a reset torsion spring abutting protruding block 12 is protruding on the surface of the connecting side plate 1 facing the upper accommodating shell 2 and at a position close to the rotating shaft matching sleeve 11, two end parts of the transmission arm reset torsion spring 111 are respectively hooked on the transmission arm reset protruding block 621 and the reset torsion spring abutting protruding block 12, and after the transmission arm 62 rotates, the transmission arm reset protruding block 621 drives the end part of the transmission arm reset torsion spring 111 to move and enable the transmission arm reset torsion spring 111 to generate elastic deformation, so that the transmission arm reset torsion spring 111 can apply restoring force to the transmission arm 62.

Further, a transmission arm connection block 622 is further formed at an end portion of the transmission arm 62 of the unlocking rotary member 6, which is far away from the rotary shaft 61, and a linkage plate connection hole 711 is formed at an end portion of the linkage plate 71 of the unlocking linkage assembly 7, and the transmission arm connection block 622 is cooperatively disposed in the linkage plate connection hole 711, thereby realizing transmission connection between the transmission arm 62 and the linkage plate 71; a link plate guide 712 extending along the longitudinal direction is formed at the other end of the link plate 71, and a link plate positioning boss 13 is formed on the plate body of the connecting side plate 1 and at a position close to the link plate guide 712, and the link plate guide 712 is abutted against the outer peripheral side surface of the link plate positioning boss 13.

Referring to fig. 2, a locking arm locking groove 721 is formed on the locking arm 72 of the unlocking linkage assembly 7 near the driving plate 3, a driving plate protrusion 31 is formed at the lower portion of the driving plate 3, the driving plate protrusion 31 has a square shape, the driving plate protrusion 31 has a driving plate protrusion locking portion 311 adapted to the shape of the locking arm locking groove 721, and the driving plate protrusion locking portion 311 can be inserted into the locking arm locking groove 721, thereby locking the driving plate 3 and the locking arm 72; the driving plate bump 31 is further provided with a driving plate bump anti-backlash part 312, an anti-backlash cam 14 is further arranged on the connecting side plate 1 and near the driving plate bump anti-backlash part 312, the anti-backlash cam 14 is connected with the connecting side plate 1 through an anti-backlash cam connecting shaft 141 penetrating through the center of the anti-backlash cam connecting shaft, the driving plate bump anti-backlash part 312 is attached to the surface of the anti-backlash cam 14, the driving plate 3 is always attached to the anti-backlash cam 14 during the movement, the anti-backlash cam 14 can eccentrically move around the anti-backlash cam connecting shaft 141, and the anti-backlash cam 14 can effectively eliminate the gap generated by the movable gear shell 41 connected with the driving plate 3 during the movement; a plate spring piece 731 is further sleeved on the shaft body of the anti-backlash hinge shaft 73 of the unlocking linkage assembly 7, and an end part of the plate spring piece 731, which is far away from the anti-backlash hinge shaft 73, is bent and abutted against the driving plate protrusion 31.

Further, a pair of driving plate limiting stop protrusions 32 are further formed on the plate body of the driving plate 3, the two driving plate limiting stop protrusions 32 are arranged at two sides of the travel limiting baffle 8 at intervals, and the travel limiting baffle 8 is arranged between the two limiting plate limiting stop protrusions 32; during the movement of the driving plate 3, the two limiting plate limiting stop protrusions 32 can respectively abut against the stroke limiting baffle 8, so that the limitation of the movement stroke of the driving plate 3 is realized.

In the present embodiment, a driving plate center hole 33 penetrating through the thickness direction of the driving plate 3 is further formed at the center position of the driving plate 3, and a connecting side plate positioning sleeve 15 is disposed on the connecting side plate 1 and at a position corresponding to the driving plate center hole 33, and the connecting side plate positioning sleeve 15 extends into the driving plate center hole 33 to be in fit connection therewith.

Referring to fig. 3, fig. 4 and fig. 5 in combination with fig. 2, a movable tooth shell inner gear ring 411 is formed inside the movable tooth shell 41 of the tooth shell assembly 4, a fixed tooth shell outer gear ring 421 is formed on the fixed tooth shell 42, the number of teeth of the fixed tooth shell outer gear ring 421 of the fixed tooth shell 42 is one more than the number of teeth of the movable tooth shell inner gear ring 411 of the movable tooth shell 41, and a differential planetary gear transmission structure is formed between the movable tooth shell 41 and the fixed tooth shell 42 through the engagement of the movable tooth shell inner gear ring 411 and the fixed tooth shell outer gear ring 421; a movable gear housing sleeve 412 is formed at the center of the movable gear housing 41 toward the fixed gear housing, a movable gear housing sleeve through hole 4121 is formed in the movable gear housing sleeve 412, and a fixed gear housing through hole 422 penetrating through the thickness direction thereof is formed in the fixed gear housing 42; a plurality of movable gear case positioning protrusions 413 are formed on a surface of the movable gear case 41 facing the driving plate 3, and a driving plate positioning groove 34 is formed on the driving plate 3 at a position corresponding to the plurality of movable gear case positioning protrusions 413, and the plurality of movable gear case positioning protrusions 413 are fitted into the driving plate positioning groove 34, thereby realizing positioning connection of the driving plate 3 and the movable gear case 41.

In this embodiment, the power transmission assembly 5 includes a rotating disc 51, a power input shaft sleeve 52, an eccentric block 53, a bushing 54, a pair of anti-backlash blocks 55, an anti-backlash block positioning torsion spring 56 and a power input shaft sleeve retainer 57; the rotating disc 51 is positioned at one side close to the fixed gear shell 42, the power input shaft sleeve 52 is connected at the center of the rotating disc 51 and penetrates through the shaft sleeve through hole 4121 of the movable gear shell, a spline hole penetrating through the axial direction of the power input shaft sleeve 52 is formed in the power input shaft sleeve 52, and the spline hole is used for being connected with a driving shaft of a motor; the eccentric block 53 is disposed in the fixed gear case through hole 422 and is mounted together with the rotating disk 51, and an eccentric block through hole 531 penetrating the thickness direction of the eccentric block 53 is formed at the center position of the eccentric block 53, the movable gear case shaft sleeve 412 is inserted into the eccentric block through hole 531 and is rotatably fitted therewith, and two eccentric surfaces 532 symmetrically disposed along the vertical center line thereof are formed on the outer circumferential side surface of the eccentric block 53, and a pair of eccentric block blocking protrusions 533 are further protruded outwardly on the outer circumferential side wall of the eccentric block 53, the two eccentric block blocking protrusions 533 being respectively formed at positions near the eccentric surfaces 532 on both sides; the bushing 54 is sleeved on the inner peripheral side wall of the fixed gear case through hole 422; the pair of anti-backlash blocks 55 are symmetrically arranged at the outer side positions of the two side eccentric surfaces 532 corresponding to the eccentric blocks 53, the anti-backlash blocks 55 are in a waist-shaped structure, the outer side surfaces of the anti-backlash blocks 55 are contacted with the inner peripheral side wall of the bushing 54, the inner side surfaces of the two anti-backlash blocks 55 are respectively provided with an anti-backlash surface 551 matched with the eccentric surfaces 532, the anti-backlash surfaces 551 of the anti-backlash blocks 55 are different from the outer side surfaces thereof in shape and the center lines of the anti-backlash surfaces are not on the same axis, one anti-backlash block flange 552 is formed at one end part of the two anti-backlash blocks 55 close to the eccentric block flange 533, and a torsion spring head matching groove 553 penetrating through the thickness direction of the anti-backlash blocks 55 is formed at one end part of the two anti-backlash blocks 55 away from the eccentric block flange 533; the anti-backlash block positioning torsion spring 56 is positioned and arranged on the rotating disc 51, the anti-backlash block positioning torsion spring 56 is in an integrated annular piece structure, two end parts of the anti-backlash block positioning torsion spring 56 are respectively provided with a torsion spring head 561, and the torsion spring heads 561 at the two ends are respectively matched and penetrated into torsion spring head matching grooves 553 of the anti-backlash block 55 corresponding to the anti-backlash block positioning torsion spring 56; the power input shaft sleeve retainer 57 is positioned and disposed at a position of the movable gear housing 41 opposite to the fixed gear housing 42, and the power input shaft sleeve retainer 57 is fitted and sleeved on the outer peripheral sidewall of the power input shaft sleeve 52, and the power input shaft sleeve retainer 57 can effectively prevent the power input shaft sleeve 52 from moving outwards.

In this embodiment, the eccentric surface 532 of the eccentric block 53 and the anti-backlash surface 551 of the anti-backlash block 55 are both wedge-shaped surfaces that are matched by inclined wedge-shaped contours, and the anti-backlash surface 551 formed by the anti-backlash block 55 and the center line of the outer side surface thereof are not on the same axis. Further, the outer peripheral side surfaces of the aforementioned two anti-backlash blocks 55 are brought into close contact with the inner peripheral side surface of the bushing 24 by the anti-backlash block positioning torsion springs 56.

It should be noted that: the bushing 54 is made of wear-resistant material; the movable tooth shell 41, the fixed tooth shell 42 and the anti-backlash block 55 are all metal pieces prepared by powder metallurgy, so that the production cost of the parts prepared by powder metallurgy is low, uneven casting structures can be effectively eliminated, component segregation is reduced, and the bearing capacity and the service life are greatly improved.

Further, a plurality of rotating disc protrusions 511 are formed at a circumferential edge of the rotating disc 51 facing the one side surface of the fixed gear housing 42 in a protruding manner, the plurality of rotating disc protrusions 511 are disposed at intervals along a circumferential direction of the rotating disc 51, and a fitting hole 512 is formed between two adjacent rotating disc protrusions 511; a plurality of eccentric block embedding parts 534 are arranged on the outer peripheral side wall of the eccentric block 53 in an outward protruding way at the position corresponding to the embedding holes 512, the eccentric block embedding parts 534 are embedded in the embedding holes 512, so that the eccentric block 53 and the rotating disc 51 are matched and installed, and the plurality of eccentric block embedding parts 534 are arranged between a pair of eccentric block blocking projections 533 at equal intervals; in the present embodiment, the number of the rotating disc protrusions 511 is three, and the number of the fitting holes 512 and the eccentric block fitting portions 534 is two.

Further, the tooth shell assembly 4 further includes a collar member 43 having an annular shape, the collar member 43 is sleeved on the outer circumferences of the movable tooth shell 41 and the fixed tooth shell 42, and the collar member 43 and the fixed tooth shell 42 are welded together.

With continued reference to fig. 1 to 5, the present inventors briefly describe the working principle of the technical solution provided by the present utility model: when a passenger needs to adjust the angle of the backrest of the vehicle by a small margin to obtain a better riding position during riding, a user can drive the angle adjuster in an electric mode to realize the adjustment of the backrest angle; specifically, the user presses the adjusting button to directly drive the power input shaft sleeve 52 to rotate by the driving shaft of the motor, at this time, the driving plate 3 and the locking arm 72 are locked together, and the driving plate 3 can slowly and continuously move under the driving of the gear housing assembly 4 and the power transmission assembly 5; the power input shaft sleeve 52 further drives the eccentric block 53 to rotate synchronously, the eccentric block boss 533 is in contact with the gap eliminating block flange 552 of the gap eliminating block 55, the gap eliminating surface 551 of the gap eliminating block 55 is acted by the acting force of the eccentric block 53, so that the gap eliminating block 55 starts to rotate and further compress the gap eliminating block positioning torsion spring 56, when the tension force of the gap eliminating block positioning torsion spring 56 is enough to offset the friction force born by the gap eliminating block 55 on the other side, the two gap eliminating blocks 55 start to rotate in the same direction and further drive the bushing 54 to rotate, and because the gap eliminating surface 551 of the gap eliminating block 55 is eccentrically arranged, the gap eliminating block 55 and the bushing 54 can further drive the movable gear shell 41 to do eccentric motion relative to the fixed gear shell 42, so that the angle of the movable gear shell 41 changes, the movable gear shell 41 further drives the driving plate 3 to creep with the connecting side plate 1, and the connecting side plate 1 can drive the unlocking rotating member 6 to move together with the unlocking assembly 7, thereby realizing electric adjustment of the angle of the backrest of the seat.

When a passenger manually realizes the quick release of the seat backrest, firstly, the unlocking of the driving plate 3 and the locking arm 72 is required, the unlocking button is pressed to drive the unlocking rotary piece 6 to rotate, the driving arm 62 of the unlocking driving piece 6 rotates in the inner cavity 21 of the shell and presses the driving arm reset torsion spring 111 to generate elastic deformation, the driving arm 62 further drives the linkage plate 71 and the locking arm 72 of the unlocking linkage assembly 7 to move, the locking arm 72 moves around the clearance elimination hinge shaft 73 and moves out of the driving plate lug 31, so that the unlocking of the driving plate 3 and the locking arm 72 is realized, the driving plate 3 and the connecting sideboard 1 can move freely, the passenger can manually pull the seat backrest to enable the seat backrest to rotate quickly, the quick release function is realized, and the manual pulling adjusting mode is greatly improved in comparison with the electric adjusting mode rotation rate; the two limiting plate limiting stop protrusions 32 on the driving plate 3 are abutted to the travel limiting baffle 8 in the reciprocating rotation process, so that the seat back and the driving plate 3 can rotate in the travel rotation range defined by the limiting plate limiting stop protrusions 32 on two sides, and the adjustment of the angles of the seat back in different forms is realized through manual and automatic adjustment, so that various use requirements are met; when the unlocking button of the unlocking rotary member 6 is released, the unlocking rotary member 6 is not acted by external force, the transmission arm 62 on the unlocking rotary member is reversely moved by the acting force of the transmission arm reset torsion spring 111, and the linkage plate 71 and the locking arm 72 of the unlocking linkage assembly 7 are driven to move, and the locking arm 72 can be locked with the driving plate 3.

When the automobile seat is in a static state, the fixed tooth shell 42 and the movable tooth shell 41 are matched with each other, the pair of gap eliminating blocks 55 are unfolded after being subjected to the outward tension of the gap eliminating block positioning torsion spring 56, acting force is applied to the movable tooth shell 41 through the transmission of the bushing 54 by the outer surface of the gap eliminating block 55, the gap eliminating block 55 and the eccentric block 53 are abutted against the bushing 54, the contact gap between the fixed tooth shell 1 and the movable tooth shell 2 is eliminated, the inner tooth ring 411 of the movable tooth shell is tightly meshed with the outer tooth ring 421 of the fixed tooth shell, and the backrest does not shake when a driver sits on the backrest, so that the riding comfort is improved.

In summary, the technical scheme provided by the utility model overcomes the defects in the prior art, successfully completes the task of the utility model, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims (10)

1. A manual-automatic vehicle seat recliner, comprising: a connecting side plate (1), the connecting side plate (1) being connected to a vehicle seat back; the upper accommodating shell (2) is arranged at the upper part of the connecting side plate (1), and a shell inner cavity (21) is formed between the upper accommodating shell (2) and the plate body of the connecting side plate (1); the driving plate (3) is arranged on one side of the connecting side plate (1) and corresponds to the lower position of the upper accommodating shell (2), and the driving plate (3) can drive the connecting side plate (1) to rotate; the tooth shell assembly (4), the tooth shell assembly (4) is arranged at one side position of the driving plate (3) far away from the connecting side plate (1), the tooth shell assembly (4) comprises a movable tooth shell (41) and a fixed tooth shell (42) which are matched to form a differential planetary gear transmission structure, and the movable tooth shell (41) and the driving plate (3) are matched and installed together; the power transmission assembly (5) is arranged at one side of the tooth shell assembly (4) far away from the driving plate (3), and the power transmission assembly (5) is in transmission connection with the electric driving device and is used for driving the movable tooth shell (41) to eccentrically move relative to the fixed tooth shell (42); an unlocking rotary member (6), wherein the unlocking rotary member (6) is provided with a rotary shaft (61) and a transmission arm (62) which are integrally formed, the rotary shaft (61) penetrates through the connecting side plate (1) and is inserted into the inner cavity (21) of the shell, the rotary shaft (61) is rotationally connected with the connecting side plate (1), and the transmission arm (62) is formed on the shaft body of the rotary shaft (61) and is positioned and arranged in the inner cavity (21) of the shell; the unlocking linkage assembly (7), the unlocking linkage assembly (7) is arranged in the inner cavity (21) of the shell and comprises a linkage plate (71), a locking arm (72) and an anti-backlash hinge shaft (73), two ends of the anti-backlash hinge shaft (73) are respectively connected to the connecting side plate (1) and the upper accommodating shell (2) in a pivoted mode, one end part of the linkage plate (71) in the length direction is connected with the end part of the transmission arm (62) of the unlocking rotating piece (6) in a matched mode, one end part of the locking arm (72) is hinged to the linkage plate (71), the other end part of the locking arm (72) is sleeved on the anti-backlash hinge shaft (73) in a pivoted mode, the locking arm (72) can eccentrically rotate around the anti-backlash hinge shaft (73), and the locking arm (72) can be locked or separated from the driving plate (3); the travel limit baffle (8), the travel limit baffle (8) is arranged at one side of the connecting sideboard (1), and the travel limit baffle (8) is used for limiting the rotation angle of the driving board (3).

2. An automated manual vehicle seat recliner as defined in claim 1 wherein: a rotating shaft matching sleeve (11) is arranged on the plate body of the connecting side plate (1) and at the position corresponding to the rotating shaft (61) of the unlocking rotating piece (6), the rotating shaft matching sleeve (11) penetrates through the connecting side plate (1) along the horizontal direction and stretches into the inner cavity (21) of the shell, and the rotating shaft (61) of the unlocking rotating piece (6) penetrates into the rotating shaft matching sleeve (11) and is in rotating fit with the rotating shaft matching sleeve; the rotary shaft matching sleeve (11) is located on a sleeve body of the shell inner cavity (21), a transmission arm reset torsion spring (111) is further installed, a vertical state is formed between a rotary shaft (61) of the unlocking rotary piece (6) and the transmission arm (62), a transmission arm reset protruding block (621) is formed on the surface of the opposite side of the transmission arm (62) and the connecting side plate (1) in a protruding mode, a reset torsion spring abutting protruding block (12) is formed on the surface of the connecting side plate (1) facing the upper accommodating shell (2) in a protruding mode at a position close to the rotary shaft matching sleeve (11), and two end portions of the transmission arm reset torsion spring (111) are respectively hooked on the transmission arm reset protruding block (621) and the reset torsion spring abutting protruding block (12).

3. An automated manual vehicle seat recliner as defined in claim 1 wherein: a transmission arm connecting block (622) is further formed at one end part of the transmission arm (62) of the unlocking rotating piece (6) far away from the rotating shaft (61) in the length direction, a linkage plate connecting hole (711) is formed at one end part of the linkage plate (71) of the unlocking linkage assembly (7) in the length direction, and the transmission arm connecting block (622) is cooperatively arranged in the linkage plate connecting hole (711) so as to realize transmission connection of the transmission arm (62) and the linkage plate (71); a linkage plate guide (712) extending along the length direction is formed at the other end of the linkage plate (71), a linkage plate positioning protruding block (13) is formed on the plate body of the connecting side plate (1) and at a position close to the linkage plate guide (712) in a protruding manner, and the linkage plate guide (712) is abutted against the outer peripheral side surface of the linkage plate positioning protruding block (13).

4. An automated manual vehicle seat recliner as defined in claim 1 wherein: a locking arm locking groove (721) is formed in a part, close to the driving plate (3), of the locking arm (72) body of the unlocking linkage assembly (7), a driving plate protruding block (31) is formed at the lower part of the driving plate (3) in a protruding mode, the driving plate protruding block (31) is of a square-shaped structure, the driving plate protruding block (31) is provided with a driving plate protruding block locking part (311) matched with the locking arm locking groove (721) in shape, and the driving plate protruding block locking part (311) can be embedded in the locking arm locking groove (721), so that locking of the driving plate (3) and the locking arm (72) is achieved; the driving plate bump (31) is further provided with a driving plate bump anti-backlash part (312), an anti-backlash cam (14) is further arranged on the connecting side plate (1) and at a position close to the driving plate bump anti-backlash part (312), the anti-backlash cam (14) is connected with the connecting side plate (1) through an anti-backlash cam connecting shaft (141) penetrating through the center of the anti-backlash cam, and the driving plate bump anti-backlash part (312) is attached to the surface of the anti-backlash cam (14); a plate spring piece (731) is sleeved on the shaft body of the anti-backlash hinge shaft (73) of the unlocking linkage assembly (7), and one end part of the plate spring piece (731), which is far away from the anti-backlash hinge shaft (73), is bent and abutted to the driving plate lug (31).

5. An automated manual vehicle seat recliner as defined in claim 1 wherein: a pair of driving plate limiting blocking protrusions (32) are further formed on the driving plate (3) body, the two driving plate limiting blocking protrusions (32) are arranged at two side positions of the travel limiting baffle (8) at intervals, and the travel limiting baffle (8) is arranged between the two limiting plate limiting blocking protrusions (32); in the motion process of the driving plate (3), the two limiting plate limiting stop protrusions (32) can be respectively abutted to the travel limiting stop plate (8), so that the motion travel of the driving plate (3) is limited.

6. An automated manual vehicle seat recliner as defined in claim 1 wherein: a central hole (33) of the driving plate (3) penetrating through the thickness direction is formed in the central position of the driving plate, a connecting side plate positioning shaft sleeve (15) is arranged on the connecting side plate (1) and corresponds to the central hole (33) of the driving plate, and the connecting side plate positioning shaft sleeve (15) extends into the central hole (33) of the driving plate to be connected with the central hole in a matched mode.

7. An automated manual vehicle seat recliner as defined in claim 1 wherein: a movable tooth shell inner gear ring (411) is formed inside the movable tooth shell (41) of the tooth shell assembly (4), a fixed tooth shell outer gear ring (421) is formed on the fixed tooth shell (42), the number of teeth of the fixed tooth shell outer gear ring (421) of the fixed tooth shell (42) is one more than the number of teeth of the movable tooth shell inner gear ring (411) of the movable tooth shell (41), and a differential planetary gear transmission structure is formed between the movable tooth shell (41) and the fixed tooth shell (42) through the engagement of the movable tooth shell inner gear ring (411) and the fixed tooth shell outer gear ring (421); a movable tooth shell shaft sleeve (412) is formed at the center of the movable tooth shell (41) and faces the fixed tooth shell, a movable tooth shell shaft sleeve through hole (4121) is formed in the movable tooth shell shaft sleeve (412), and a fixed tooth shell through hole (422) penetrating through the thickness direction of the fixed tooth shell is formed on the fixed tooth shell (42); a plurality of movable tooth shell positioning convex blocks (413) are formed on the surface of one side, facing the driving plate (3), of the movable tooth shell (41), driving plate positioning grooves (34) are formed in the driving plate (3) and at positions corresponding to the movable tooth shell positioning convex blocks (413), and the movable tooth shell positioning convex blocks (413) are installed in the driving plate positioning grooves (34) in a matched mode, so that positioning connection between the driving plate (3) and the movable tooth shell (41) is achieved.

8. An automated manual vehicle seat recliner according to claim 7 wherein: the power transmission assembly (5) comprises a rotating disc (51), a power input shaft sleeve (52), an eccentric block (53), a bushing (54), a pair of clearance eliminating blocks (55), a clearance eliminating block positioning torsion spring (56) and a power input shaft sleeve retainer ring (57); the rotating disc (51) is positioned and arranged at a position close to one side of the fixed gear shell (42), and the power input shaft sleeve (52) is connected at the central position of the rotating disc (51) and penetrates through the shaft sleeve through hole (4121) of the movable gear shell; the eccentric block (53) is arranged in the through hole (422) of the fixed tooth shell and is matched with the rotating disc (51) to be installed together, an eccentric block through hole (531) penetrating through the thickness direction of the eccentric block is formed at the center position of the eccentric block (53), the movable tooth shell shaft sleeve (412) penetrates into the through hole (531) of the eccentric block to be matched with the through hole in a rotating way, two eccentric surfaces (532) symmetrically arranged along the vertical center line of the eccentric block are formed on the outer peripheral side surface of the eccentric block (53), a pair of eccentric block blocking protrusions (533) are outwards arranged on the outer peripheral side wall of the eccentric block (53), and the two eccentric block blocking protrusions (533) are respectively formed at positions close to the eccentric surfaces (532) on two sides; the bushing (54) is sleeved on the inner peripheral side wall of the fixed tooth shell through hole (422); the pair of gap elimination blocks (55) are symmetrically arranged at the outer side positions of the eccentric surfaces (532) on the two sides of the eccentric block (53), the gap elimination blocks (55) are of a waist-shaped structure, the outer side surfaces of the gap elimination blocks (55) are contacted with the inner peripheral side wall of the bushing (54), the inner side surfaces of the two gap elimination blocks (55) are respectively provided with a gap elimination surface (551) matched with the eccentric surfaces (532), the gap elimination surfaces (551) of the gap elimination blocks (55) are different from the outer side surfaces of the gap elimination blocks in shape, the center lines of the gap elimination surfaces (551) and the outer side surfaces of the gap elimination blocks are not on the same axis, one end part of the two gap elimination blocks (55) close to the eccentric block blocking boss (533) is provided with a gap elimination block blocking edge (552), and the end part of the two gap elimination blocks (55) far from the eccentric block blocking boss (533) is provided with a torsion spring head matching groove (553) penetrating through the thickness direction of the torsion spring head matching groove; the gap eliminating block positioning torsion spring (56) is positioned and arranged on the rotating disc (51), the gap eliminating block positioning torsion spring (56) is of an integrated annular piece structure, two end parts of the gap eliminating block positioning torsion spring (56) are respectively provided with a torsion spring head (561), and the torsion spring heads (561) at the two ends are respectively matched and pass through torsion spring head matching grooves (553) of the gap eliminating block (55) corresponding to the torsion spring heads; the power input shaft sleeve check ring (57) is positioned and arranged at one side position of the movable gear shell (41) opposite to the fixed gear shell (42), and the power input shaft sleeve check ring (57) is matched and sleeved on the peripheral side wall of the power input shaft sleeve (52).

9. An automated manual vehicle seat recliner according to claim 8 wherein: a plurality of rotating disc convex blocks (511) are convexly arranged at the circumferential edge of one side surface of the rotating disc (51) facing the fixed gear shell (42), the plurality of rotating disc convex blocks (511) are arranged at intervals along the circumferential direction of the rotating disc (51), and a jogged hole (512) is formed between two adjacent rotating disc convex blocks (511); a plurality of eccentric block jogging parts (534) are outwards convexly arranged on the outer peripheral side wall of the eccentric block (53) at positions corresponding to the jogging holes (512), the eccentric block jogging parts (534) are embedded in the jogging holes (512), so that the eccentric block (53) and the rotating disc (51) are matched and installed, and the plurality of eccentric block jogging parts (534) are arranged between a pair of eccentric block blocking protrusions (533) at equal intervals.

10. An automated manual vehicle seat recliner as defined in claim 1 wherein: the tooth shell assembly (4) further comprises a hoop member (43) in an annular shape, the hoop member (43) is sleeved on the peripheries of the movable tooth shell (41) and the fixed tooth shell (42), and the hoop member (43) and the fixed tooth shell (42) are welded together.