阅读说明：本技术 一种汽车座椅靠背多角度调节装置 (Multi-angle adjusting device for automobile seat backrest ) 是由 石聪 李航宇 何正远 王俊 蔡建波 于 2019-09-16 设计创作，主要内容包括：本发明公开的一种汽车座椅靠背多角度调节装置,包括锁扣总成和基座总成,基座总成包括座板和锁舌,座板之上设置有锁槽,锁槽与锁舌围绕形成锁环,锁扣总成包括锁止杠杆、导轨板和滑板,滑板可滑动地套合于导轨板之上,导轨板之上设置有多个锁扣孔,滑板之上固定连接有扣环,锁止杠杆一端通过转轴与滑板连接,另一端固定有锁止块,锁止块可活动地套装于其中一个锁扣孔以内,使锁环与扣环彼此相对部署并且能够相互套合。采用本发明的技术方案,实现了对座椅靠背的多角度调节,通过锁止块与锁扣孔相互套合锁紧以及通过扣环与锁环的相互套合锁紧构成了汽车座椅靠背的定位双保险,能够有效避免出现松脱的情况,减少了安全隐患。(The invention discloses a multi-angle adjusting device for an automobile seat backrest, which comprises a lock catch assembly and a base assembly, wherein the base assembly comprises a seat plate and a lock tongue, a lock groove is formed in the seat plate, the lock groove and the lock tongue surround to form a lock ring, the lock catch assembly comprises a locking lever, a guide rail plate and a sliding plate, the sliding plate is slidably sleeved on the guide rail plate, a plurality of lock catch holes are formed in the guide rail plate, a snap ring is fixedly connected onto the sliding plate, one end of the locking lever is connected with the sliding plate through a rotating shaft, a locking block is fixedly arranged at the other end of the locking lever, and the locking block is movably sleeved in one of the lock catch holes, so that the lock. By adopting the technical scheme, the seat back can be adjusted in multiple angles, the positioning double-insurance of the automobile seat back is formed by the mutual nesting and locking of the locking block and the locking hole and the mutual nesting and locking of the retaining ring and the locking ring, the loosening condition can be effectively avoided, and the potential safety hazard is reduced.)

1. the utility model provides a car seat back multi-angle adjusting device which characterized in that: the lock catch comprises a lock catch assembly and a base assembly, wherein the base assembly comprises a seat plate (12) and a lock tongue (15), a lock groove is formed in the seat plate (12), one end of the lock tongue (15) is rotatably connected with the seat plate (12), when the other end of the lock tongue (15) covers the position of the lock groove, the lock groove and the lock tongue (15) surround to form a lock ring (16), the lock catch assembly comprises a lock catch lever (4), a guide rail plate (1) and a sliding plate (2), the sliding plate (2) is slidably sleeved on the guide rail plate (1), a plurality of lock catch holes (101) are formed in the guide rail plate (1), the lock catch holes (101) are arrayed in a row along the length direction of the guide rail plate (1), a snap ring (3) is fixedly connected to the sliding plate (2), one end of the lock catch lever (4) is rotatably arranged on the sliding plate (2) through a rotating shaft (8), the other end of the locking lever (4) is fixedly connected with a locking block (6), the locking block (6) is movably sleeved in one of the locking holes (101), the seat plate (12) is fixedly connected with an automobile body, and the guide rail plate (1) is installed on the backrest of the automobile seat, so that the locking ring (16) and the retaining ring (3) are arranged oppositely and can be sleeved mutually.

2. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: and a locking torsion spring (7) is sleeved on the rotating shaft (8).

3. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: and a plastic clamping strip (10) is arranged at the matching joint of the sliding plate (2) and the guide rail plate (1).

4. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: and the front end and the rear end of the guide rail plate (1) are respectively and fixedly connected with a limiting block (9) along the length direction of the guide rail plate (1).

5. The multi-angle adjusting apparatus for a car seat back of claim 4, wherein: the limiting block (9) and the guide rail plate (1) are connected together in a riveting mode.

6. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: the retaining ring (3) is connected with the sliding plate (2) through hot riveting.

7. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: the lock catch assembly further comprises an opening lever (5), one end of the opening lever (5) is arranged below the locking lever (4), the middle of the opening lever is rotatably installed on the sliding plate (2) through a hinge shaft (14), the other end of the opening lever (5) extends outwards, and an opening torsion spring (11) is sleeved on the hinge shaft (14).

8. The multi-angle adjusting apparatus for a car seat back of claim 1, wherein: the overlook projection of the lock catch hole (101) is a through hole with two large ends and a small middle.

Technical Field

The invention relates to the technical field of automobile spare and accessory parts, in particular to a multi-angle adjusting device for an automobile seat backrest.

Background

At present, a seat back angle adjusting device widely used in an automobile is generally a two-stage angle adjusting device, as shown in fig. 1, the two-stage angle adjusting device generally includes a lock catch plate (17) and a lock tongue plate (18), the lock catch plate (17) is fixedly connected with an automobile body, two lock posts (19) are arranged on the lock catch plate (17), the lock tongue plate (18) is rotatably installed on the seat back through a torsion spring, a corresponding lock groove (20) is arranged on the lock tongue plate (18), the lock groove (20) is respectively sleeved with one of the two lock posts (19) by shifting the lock tongue plate (18), and the adjustment of the seat back angle can be realized, however, since the lock tongue plate (18) is rotatably installed on the seat back through the torsion spring, when the automobile is in a driving process, the seat back is easy to vibrate, so that the lock posts (19) jump from the lock groove (20), the seat backrest can not be locked, the normal use of the seat backrest angle adjusting device is influenced, and meanwhile, when the two-section angle adjusting device is used, abnormal sound can be generated between the locking groove (20) and the locking column (19) due to collision in the angle adjusting process of the seat backrest, so that the user feels uncomfortable.

Disclosure of Invention

In order to solve the technical problem, the invention provides a multi-angle adjusting device for a backrest of an automobile seat.

The invention is realized by the following technical scheme.

The invention provides a multi-angle adjusting device of an automobile seat backrest, which comprises a lock catch assembly and a base assembly, wherein the base assembly comprises a seat plate and a lock tongue, a lock groove is arranged on the seat plate, one end of the lock tongue is rotatably connected with the seat plate, when the other end of the lock tongue covers the opening of the lock groove, the lock groove and the lock tongue surround to form a lock ring, the lock catch assembly comprises a lock lever, a guide rail plate and a sliding plate, the sliding plate is slidably sleeved on the guide rail plate, a plurality of lock catch holes are arranged on the guide rail plate, the lock catch holes are arranged in a row along the length direction of the guide rail plate, a snap ring is fixedly connected on the sliding plate, one end of the lock lever is rotatably arranged on the sliding plate through a rotating shaft, the other end of the lock lever is fixedly connected with a lock block, and the lock block is movably sleeved in one, the seat plate is fixedly connected with the automobile body, and the guide rail plate is arranged on the backrest of the automobile seat, so that the lock ring and the buckle ring are arranged opposite to each other and can be sleeved with each other.

And a locking torsion spring is sleeved on the rotating shaft.

And a plastic clamping strip is arranged at the matching joint of the sliding plate and the guide rail plate.

And the front end and the rear end of the guide rail plate are respectively fixedly connected with limit blocks along the length direction of the guide rail plate.

The limiting blocks are connected with the guide rail plates in a riveting mode.

The retaining ring is connected with the sliding plate through hot riveting.

the lock catch assembly further comprises an opening lever, one end of the opening lever is arranged below the locking lever, the middle of the opening lever is rotatably arranged on the sliding plate through a hinge shaft, the other end of the opening lever extends outwards, and an opening torsion spring is sleeved on the hinge shaft.

The overlook projection of the lock catch hole is a through hole with two large ends and a small middle.

The invention has the beneficial effects that: by adopting the technical scheme of the invention, when the angle of the backrest of the automobile seat needs to be adjusted, corresponding acting force can be applied to the outer side end of the opening lever, the other end of the opening lever is about to pry up the locking lever, thereby the slide plate can slide relative to the guide rail plate, the hole position of the lock catch hole which is mutually sleeved with the locking block is changed, the aim of adjusting the angle of the seat backrest is achieved, compared with the prior art, a plurality of lock catch holes can be arranged, thereby realizing multi-angle adjustment, being beneficial to expanding the angle adjustment range of the seat backrest, meeting the requirements of automobile consumers on the internal space of the automobile, when the backrest of the automobile seat is vibrated, the situation of loosening can be effectively avoided, the support of the automobile seat for passengers is ensured, a user feels comfortable, and potential safety hazards are reduced.

Drawings

FIG. 1 is a schematic structural view of a two-piece type angle adjustment device for a vehicle seat back according to the prior art;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the base assembly of the present invention;

FIG. 4 is a schematic structural view of the latch assembly of the present invention;

Fig. 5 is an enlarged view of a portion of fig. 4 of the present invention.

In the figure: 1-guide rail plate, 2-sliding plate, 3-retaining ring, 4-locking lever, 5-opening lever, 6-locking block, 7-locking torsion spring, 8-rotating shaft, 9-limiting block, 10-plastic clamping strip, 11-opening torsion spring, 12-seat plate, 14-hinged shaft, 15-locking tongue, 16-locking ring and 101-locking hole.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 to 5, the multi-angle adjusting device for the car seat back comprises a latch assembly and a base assembly, wherein the base assembly comprises a seat plate 12 and a lock tongue 15, a lock groove is arranged on the seat plate 12, one end of the lock tongue 15 is rotatably connected with the seat plate 12, when the other end of the lock tongue 15 covers the notch of the lock groove, the lock groove and the lock tongue 15 surround to form a lock ring 16, the latch assembly comprises a latch lever 4, a guide rail plate 1 and a sliding plate 2, the sliding plate 2 is slidably sleeved on the guide rail plate 1, a plurality of latch holes 101 are arranged on the guide rail plate 1, the latch holes 101 are arranged in a row along the length direction of the guide rail plate 1, a buckle 3 is fixedly connected on the sliding plate 2, one end of the latch lever 4 is rotatably mounted on the sliding plate 2 through a rotating shaft 8, a latch block 6 is fixedly connected to the other end of the latch lever 4, the seat plate 12 is fixedly connected with the automobile body, and the guide rail plate 1 is arranged on the backrest of the automobile seat, so that the lock ring 16 and the buckle 3 are arranged opposite to each other and can be sleeved with each other.

By adopting the technical scheme of the invention, when the angle of the backrest of the automobile seat needs to be adjusted, corresponding acting force can be applied to the outer side end of the opening lever, the other end of the opening lever is about to pry up the locking lever, thereby the slide plate can slide relative to the guide rail plate, the hole position of the lock catch hole which is mutually sleeved with the locking block is changed, the aim of adjusting the angle of the seat backrest is achieved, compared with the prior art, a plurality of lock catch holes can be arranged, thereby realizing multi-angle adjustment, being beneficial to expanding the angle adjustment range of the seat backrest, meeting the requirements of automobile consumers on the internal space of the automobile, when the backrest of the automobile seat is vibrated, the situation of loosening can be effectively avoided, the support of the automobile seat for passengers is ensured, a user feels comfortable, and potential safety hazards are reduced.

Furthermore, a locking torsion spring 7 is sleeved on the rotating shaft 8.

In addition, a plastic clamping strip 10 is arranged at the matching connection part of the sliding plate 2 and the guide rail plate 1. Through the separation of plastics card strip 10, when slide 2 slides along guide rail plate 1 length direction, reduced the noise that relative motion produced between the spare part, make the user when adjusting car seat back angle, it is comparatively comfortable in the subjective impression.

furthermore, the front end and the rear end of the guide rail plate 1 are respectively fixedly connected with a limiting block 9 along the length direction of the guide rail plate 1. Preferably, the limiting block 9 is connected with the guide rail plate 1 in a riveting mode. The limiting block 9 is used for preventing the sliding plate 2 from being separated from the front end and the rear end of the guide rail plate 1 when sliding along the length direction of the guide rail plate 1, and the user is prevented from exceeding the range when adjusting the angle of the automobile seat backrest.

Further, the retainer ring 3 is subjected to thermal refining. The retaining ring 3 is connected with the guide rail plate 1 through hot riveting. By adopting the technical scheme of the invention, the snap ring 3 can bear high-strength collision after thermal refining, and all components are connected in a corresponding hot riveting or welding mode, so that the structural strength and the bearing capacity of the angle adjusting device are enhanced, and the angle adjusting device is more reliable and stable in structure when in use.

in addition, the lock catch assembly further comprises an opening lever 5, one end of the opening lever 5 is arranged below the locking lever 4, the middle of the opening lever is rotatably arranged on the sliding plate 2 through a hinge shaft 14, the other end of the opening lever 5 extends outwards, and an opening torsion spring 11 is sleeved on the hinge shaft 14. Further, the locking hole 101 is preferably a rectangular through hole. By adopting the technical scheme of the invention, a user can release the sleeved connection relation between the locking block 6 and the lock catch hole 101 by opening the lever 5, so that the angle of the backrest of the seat is adjusted.