CN219548678U

CN219548678U - Gapless hinge mechanism

Info

Publication number: CN219548678U
Application number: CN202320086312.3U
Authority: CN
Inventors: 王明祥
Original assignee: Mingyang Technology Suzhou Co ltd
Current assignee: Mingyang Technology Suzhou Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-08-18
Anticipated expiration: 2033-01-30

Abstract

The utility model belongs to the technical field of hinge mechanisms, in particular to a gapless hinge mechanism, which comprises an outer toothed plate, an inner tooth assembly, a gap eliminating unit, a cover plate, a driving wheel and an axial limiting piece, wherein the outer toothed plate is in buckling connection with the inner tooth assembly; the utility model provides the miniaturized hinge mechanism, and simultaneously provides a rotating function, and can eliminate a loosening gap in the rotating direction, solve the problem of looseness of the mechanism, avoid vibration noise and the like, and compared with a planetary gear transmission speed reducing mechanism with small tooth difference which is commonly used in real life, the device has the characteristics of more ingenious structure, small whole volume, small eccentric distance and the like.

Description

Gapless hinge mechanism

Technical Field

The utility model relates to the technical field of hinge mechanisms, in particular to a gapless hinge mechanism.

Background

Hinge mechanisms are often used in the automobile industry and the household industry, some hinges can be stopped and locked at any position according to actual needs while providing rotation, gaps of the hinges in the rotation direction can not be completely eliminated due to the problem of manufacturing precision, and the situation of looseness often occurs, and the problems of large eccentricity, strong twisting feeling after rotation and the like of the hinges generally adopt a planetary gear transmission speed reducing mechanism with small tooth difference at present; in the aspect of clearance elimination, the problems of abnormal sound and looseness in the adjusting process can occur due to the abrasion of parts and the manufacturing problem, so that the comfort is seriously influenced, and aiming at the problems, the utility model aims to provide a hinge mechanism with conciseness and reliable functions so as to solve the problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a gapless hinge mechanism, which solves the problems of larger eccentricity, stronger twisting feeling after rotation and the like of the conventional hinge mechanism.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a zero clearance hinge mechanism, includes outer pinion rack, internal tooth subassembly, eliminates clearance unit, apron, drive wheel, axial locating part, the external pinion rack withholds with the internal tooth subassembly and is connected, the drill way department of the first hole that external pinion rack central point put the department and set up is provided with central boss, the space A that central boss and internal tooth subassembly central hole defined, space A is equipped with eliminates clearance unit.

Further, an external gear belt is arranged on the outer side of the external gear plate, the internal gear assembly comprises an internal gear plate and a shaft sleeve, the shaft sleeve is arranged in a central internal hole of the internal gear plate, and the internal gear plate is in meshed connection with the external gear belt.

Further, the gap eliminating unit comprises a driving ring, a first wedge block, a second wedge block and a spring, wherein a second inner hole is formed in the driving ring; the gap eliminating unit is rotatably sleeved on a central boss on the outer toothed plate through a second inner hole, the first wedge block and the second wedge block are arranged on the outer side of the driving ring, and two ends of the spring act on the first wedge block and the second wedge block respectively.

Further, be provided with first anchor ring, second anchor ring and third anchor ring on the drive ring, be provided with first piece face, second piece face, third piece face and fourth piece face on the first voussoir, be provided with fifth piece face, sixth piece face, seventh piece face and eighth piece face on the second voussoir, the third anchor ring is connected with third piece face and seventh piece face conflict respectively, fourth piece face and eighth piece face all are connected with the interior hole conflict of axle sleeve on the internal tooth subassembly, first anchor ring is connected with first piece face conflict.

Further, a first clamping feature is arranged on the driving ring, a second clamping feature, a first driving wheel boss and a second driving wheel boss are arranged on one side of the driving wheel, and the first clamping feature is in clamping connection with the second clamping feature.

Further, the axial limiting piece is connected with the driving wheel in a clamping mode in the axial direction, and the cover plate is arranged on the inner tooth assembly.

Further, the spring is a cylindrical spring.

Further, the axial limiting part is a clamp spring.

(III) beneficial effects

Compared with the prior art, the utility model provides a gapless hinge mechanism, which has the following beneficial effects:

the utility model provides the miniaturized hinge mechanism, and simultaneously provides a rotating function, and can eliminate a loosening gap in the rotating direction, solve the problem of looseness of the mechanism, avoid vibration noise and the like, and compared with a planetary gear transmission speed reducing mechanism with small tooth difference which is commonly used in real life, the device has the characteristics of more ingenious structure, small whole volume, small eccentric distance and the like.

Drawings

FIG. 1 is a front exploded perspective view of a gapless hinge assembly of the utility model;

FIG. 2 is a side-view expanded schematic perspective view of the gapless hinge assembly of the utility model;

FIG. 3 is a schematic cross-sectional view of an assembled gapless hinge assembly of the utility model;

FIG. 4 is a schematic elevational view of the gapless hinge assembly of the utility model after assembly;

fig. 5 is a perspective view of the whole of the present utility model.

In the figure: 1. an outer toothed plate; 11. an external toothed belt; 12. a central boss; 13. a first bore; 2. an internal tooth assembly; 21. an inner toothed plate; 21a, an internal toothed belt; 22. a shaft sleeve; 3. a gap eliminating unit; 31. a drive ring; 31a, a first annulus; 31b, a second annulus; 31c, a third annulus; 311. a first snap feature; 312. a second bore; 32. a first wedge; 32a, a first block face; 32b, a second block face; 32c, a third block face; 32d, a fourth block face; 33. a second wedge; 33a, a fifth block face; 33b, a sixth block face; 33c, a seventh block face; 33d, eighth block face; 34. a spring; 4. a cover plate; 5. a driving wheel; 51. a second snap feature; 52. a driving wheel first boss; 53. a driving wheel second boss; 6. and a limiting piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

In one embodiment, as shown in fig. 1 to 5, the solution includes a fixed bracket P02, a seat leg support skeleton P03 and a driving motor P05 are arranged on the fixed bracket P02, a connecting rod P04 is arranged on the seat leg support skeleton P03, the driving motor P05 is hinged with the connecting rod P04, a gapless hinge assembly P01 is arranged on the fixed bracket P02, the gapless hinge assembly P01 includes a gap eliminating unit 3, a driving wheel 5, an external tooth plate 1 arranged on the fixed bracket P02, and an internal tooth assembly 2 arranged on the seat leg support skeleton P03, the external tooth plate 1 is in buckling connection with the internal tooth assembly 2, a center boss 12 is arranged at an orifice of a first inner hole 13 arranged at the center position of the external tooth plate 1, a space a defined by the center boss 12 and the center inner hole of the internal tooth assembly 2 is filled with the gap eliminating unit 3;

the outer toothed plate 1 of the gapless hinge mechanism P01 is fixedly connected with the fixed bracket P02, the inner tooth assembly 2 is fixedly connected with the seat leg support framework P03, the connecting rods P04 respectively penetrate through the center spline holes of the driving wheels 5 of the hinge mechanisms at the two sides, and the driving motor P05 is hinged with the connecting rods P04; by controlling the driving motor, the angle adjusting function of the seat leg support mechanism can be realized.

As shown in fig. 1 to 3, in some embodiments, the outer side of the outer toothed plate 1 is provided with an outer toothed belt 11, the inner toothed assembly 2 includes an inner toothed plate 21 and a sleeve 22, the sleeve 22 is provided in a central inner hole of the inner toothed plate 21, and the inner toothed plate 21 is engaged with the outer toothed belt 11;

the outer toothed belt 11 of the outer toothed plate 1 is engaged with the inner toothed belt 21a of the inner toothed plate 21, so that the eccentricity e is generated at the centers of both.

As shown in fig. 1 and 2, in some embodiments, the gap elimination unit 3 includes a driving ring 31, a first wedge 32, a second wedge 33, and a spring 34, and a second inner hole 312 is provided on the driving ring 31; the gap eliminating unit 3 is rotatably sleeved on the central boss 12 on the external gear plate 1 through a second inner hole 312, the first wedge block 32 and the second wedge block 33 are both arranged on the outer side of the driving ring 31, and two ends of the spring 34 respectively act on the first wedge block 32 and the second wedge block 33;

the first wedge block 32 and the second wedge block 33 are respectively wedged towards two sides under the action of the spring force 34 at the same time, so that the stability of the eccentricity e after the outer toothed plate 1 and the inner toothed plate 21 are meshed is ensured, and the gap in the rotation direction of the hinge mechanism is eliminated.

As shown in fig. 4, in some embodiments, the driving ring 31 is provided with a first ring surface 31a, a second ring surface 31b and a third ring surface 31c, the first wedge block 32 is provided with a first block surface 32a, a second block surface 32b, a third block surface 32c and a fourth block surface 32d, the second wedge block 33 is provided with a fifth block surface 33a, a sixth block surface 33b, a seventh block surface 33c and an eighth block surface 33d, the third ring surface 31c is in interference connection with the third block surface 32c and the seventh block surface 33c, respectively, the fourth block surface 32d and the eighth block surface 33d are in interference connection with the inner hole of the sleeve 22 on the internal tooth assembly 2, and the first ring surface 31a is in interference connection with the first block surface 32 a;

as shown in fig. 2, in some embodiments, the drive ring 31 is provided with a first clamping feature 311, one side of the drive wheel 5 is provided with a second clamping feature 51, a first drive wheel boss 52 and a second drive wheel boss 53, and the first clamping feature 311 is in clamping connection with the second clamping feature 51;

as shown in fig. 1 to 3, in some embodiments, the axial limiting member 6 is in clamping connection with the driving wheel 5 in the axial direction, and the cover plate 4 is arranged on the inner tooth assembly 2;

the cover plate 4 is fixedly connected with the inner tooth assembly 2, and mainly has the function of buckling the outer tooth plate 1 in the groove of the inner tooth assembly 2 to prevent the outer tooth plate from falling off in the axial direction; the axial limiting piece 6 is clamped with the driving wheel 5 in the axial direction, so that various parts are prevented from falling out in the axial direction.

In some embodiments, as shown in fig. 1, the spring 34 is a linear spring.

The spring 34 may be a linear spring or a leaf spring, and is a compression spring of a small volume.

As shown in fig. 1, in some embodiments, the axial stop 6 is a snap spring;

the axial limiting part 6 can be a nut, a clamping spring or other parts.

Working principle: the hinge assembly driving wheel 5 rotates clockwise, the driving wheel 5 drives the driving ring 31 to rotate clockwise, the driving ring surface 31a contacts with the wedge surface 32a and drives the wedge 32 to rotate clockwise, at the moment, the surface 32d of the wedge 32 and the inner hole surface of the shaft sleeve 22 generate a gap, the eccentricity e is not stable after the inner toothed plate and the outer toothed plate are meshed, and the inner toothed plate and the outer toothed plate are not wedged. As the wedge surface 32b continues to compress the spring 34, the spring 34 pushes the wedge 33 to rotate clockwise, and the whole gap eliminating unit 3 rotates clockwise together, so that the angle change between the inner toothed plate and the outer toothed plate is realized, and the angle adjusting function of the hinge mechanism is completed;

when the driving wheel 5 rotates to a required position, the driving wheel 5 stops rotating, the driving ring 31 is stopped, the wedge blocks 32 and 33 are wedged towards two sides respectively under the action of the spring force of the springs 34, the eccentricity e tends to be stable after the inner toothed plate and the outer toothed plate are meshed, the inner toothed plate and the outer toothed plate are meshed tightly, and the hinge mechanism realizes gapless locking;

conversely, the reverse direction adjusting function can be realized by driving the wedge 33.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model _。

Claims

1. The utility model provides a zero clearance hinge mechanism, includes outer pinion rack (1), internal tooth subassembly (2), eliminates clearance unit (3), apron (4), drive wheel (5), axial locating part (6), its characterized in that: the external tooth plate (1) is buckled and connected with the internal tooth assembly (2), a central boss (12) is arranged at an orifice of a first inner hole (13) arranged at the central position of the external tooth plate (1), a space A defined by the central boss (12) and the central inner hole of the internal tooth assembly (2) is filled with a gap eliminating unit (3).

2. A gapless hinge mechanism as claimed in claim 1 wherein: the outside of external tooth board (1) is provided with external tooth area (11), internal tooth subassembly (2) are including interior pinion rack (21) and axle sleeve (22), axle sleeve (22) set up in the center medial hole of interior pinion rack (21), internal tooth board (21) are connected with external tooth area (11) meshing.

3. A gapless hinge mechanism as claimed in claim 1 wherein: the gap eliminating unit (3) comprises a driving ring (31), a first wedge block (32), a second wedge block (33) and a spring (34), wherein a second inner hole (312) is formed in the driving ring (31); the gap eliminating unit (3) is rotatably sleeved on a central boss (12) on the outer gear plate (1) through a second inner hole (312), the first wedge block (32) and the second wedge block (33) are both arranged on the outer side of the driving ring (31), and two ends of the spring (34) respectively act on the first wedge block (32) and the second wedge block (33).

4. A gapless hinge mechanism according to claim 3 wherein: be provided with first anchor ring (31 a), second anchor ring (31 b) and third anchor ring (31 c) on driving ring (31), be provided with first piece face (32 a), second piece face (32 b), third piece face (32 c) and fourth piece face (32 d) on first voussoir (32), be provided with fifth piece face (33 a), sixth piece face (33 b), seventh piece face (33 c) and eighth piece face (33 d) on second voussoir (33), third anchor ring (31 c) are connected with third piece face (32 c) and seventh piece face (33 c) conflict respectively, fourth piece face (32 d) and eighth piece face (33 d) all are connected with axle sleeve (22) medial hole conflict on internal tooth assembly (2), first anchor ring (31 a) are connected with first piece face (32 a) conflict.

5. A gapless hinge mechanism according to claim 3 wherein: the driving ring (31) is provided with a first clamping feature (311), one side of the driving wheel (5) is provided with a second clamping feature (51), a driving wheel first boss (52) and a driving wheel second boss (53), and the first clamping feature (311) is connected with the second clamping feature (51) in a clamping mode.