CN215552690U

CN215552690U - Multi-gear locking mechanism for adjusting angle of backrest of automobile seat

Info

Publication number: CN215552690U
Application number: CN202121645375.5U
Authority: CN
Inventors: 吴晶华
Original assignee: Shanghai Mingqing Plastic Co ltd
Current assignee: Shanghai Mingqing Plastic Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-18
Anticipated expiration: 2031-07-20

Abstract

The utility model provides an adjust many grades of locking mechanisms of car seat back angle, includes a lower apron, is provided with the upper cover plate on the apron down, is provided with the notch that the opening is decurrent in the apron down, be provided with first rivet down between apron and the upper cover plate at the upside of notch, articulated on the first rivet have the spring bolt, be provided with first torsional spring between spring bolt and the first rivet, be provided with first bayonet socket and the second bayonet socket that the opening is right in the spring bolt, be provided with the second rivet down between apron and the upper cover plate in the left side of spring bolt, articulated on the second rivet have the drive block, be provided with the second torsional spring between drive block and the second rivet. According to the utility model, the first bayonet and the second bayonet are arranged on the lock tongue, so that the lock tongue can be respectively meshed with the lock pin at two positions during movement, and two angles are increased, so that the backrest can be adjusted to 90-100 degrees from 0 degree, and the comfort level of a user is greatly improved.

Description

Multi-gear locking mechanism for adjusting angle of backrest of automobile seat

Technical Field

The utility model relates to the field of machinery, in particular to an automobile seat part, and specifically relates to a multi-gear locking mechanism for adjusting the angle of an automobile seat backrest.

Background

In the prior art, a locking mechanism adopted by a rear seat of an automobile is in a direct switch type, when the automobile is closed, a backrest and a seat form an angle of 90 degrees, and after the automobile is unlocked, the backrest and the seat form an angle of 180 degrees and are used for placing articles, but when a user sits on the seat which forms an angle of 90 degrees for a long time, discomfort can be caused. In addition, the unlocking mode of the product in the prior art is unlocked by using either the opening pull rod or the pull wire, so that the application range is limited.

Disclosure of Invention

The utility model aims to provide a multi-gear locking mechanism for adjusting the angle of a backrest of an automobile seat, and aims to solve the technical problem that the angle of a rear seat and the angle of the backrest of an automobile in the prior art are not suitable for long-time riding.

The utility model relates to a multi-gear locking mechanism for adjusting the angle of a seat back of an automobile, which comprises a lower cover plate, wherein an upper cover plate is arranged on the lower cover plate, a notch with a downward opening is arranged in the lower cover plate, a first rivet is arranged between the lower cover plate and the upper cover plate and on the upper side of the notch, a lock tongue is hinged on the first rivet, a first torsion spring is arranged between the lock tongue and the first rivet, the first torsion spring biases the lock tongue in the counterclockwise direction, a first bayonet and a second bayonet which are provided with a rightward opening are arranged in the lock tongue, a transmission rivet is arranged on the left side of the second bayonet on the lock tongue, the bottom surface of the lock tongue is arranged to be an arc surface, a second rivet is arranged on the left side of the lock tongue between the lower cover plate and the upper cover plate, a driving block is hinged on the second rivet, a second torsion spring is arranged between the driving block and the second rivet, the driving block is biased in the clockwise direction by the second torsion spring, and a first cushion block is arranged on the lower side of the driving block between the upper cover plate and the lower cover plate, the upper side of the driving block is provided with a groove, the transmission rivet is arranged in the groove, and the upper left end of the driving block is connected with a traction mechanism.

Furthermore, the traction mechanism is a pull rod, a steel wire or a pull wire, and the steel wire or the pull wire is connected with the driving block through a sleeve clamp.

Furthermore, the upper cover plate and the lower cover plate are provided with a second cushion block and a third cushion block between, the spring bolt is provided with an arc rib, the bottom surface of the second cushion block is in contact with the arc rib, the gap of the spring bolt which is rocked up and down can be reduced, and the spring bolt is not easy to rock up and down.

Furthermore, a rubber sleeve is fixed between the upper cover plate and the lower cover plate on the right side of the lock tongue through a rivet.

Compared with the prior art, the utility model has positive and obvious effect. According to the utility model, the lock tongue is provided with the first bayonet and the second bayonet, and can be respectively meshed with the lock pin at two positions during movement, so that two angles are increased, the backrest can be adjusted to 90-100 degrees from 0 degree, the comfort level of a user is greatly improved, meanwhile, the lock tongue can be unlocked by pulling the pull rod to operate the driving block, and the backrest can be laid down after unlocking. The driving block can be made of high-strength plastic materials, and the driving block is provided with the jacket clamp, so that different unlocking forms (steel wires or stay wires) can be adopted when a user uses the device, and the selection of the user in the application range of products is greatly improved. The utility model enables the backrest angle of the seat to accord with the optimal state of the ergonomic comfort degree, and the opening mode is diversified, namely, the rigidity and the flexibility can be unlocked.

Drawings

Fig. 1 is a schematic diagram of the internal structure of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat according to the present invention.

FIG. 2 is a schematic sectional view of the structure of FIG. 1 taken along line J-J.

Fig. 3 is a schematic structural diagram of a use state of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat.

Fig. 4 is an exploded view of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat according to the present invention.

Fig. 5 is a schematic front view of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat according to the present invention.

FIG. 6 is a schematic side view of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat according to the present invention.

Fig. 7 is a schematic top view of a multi-gear locking mechanism for adjusting the angle of a backrest of a car seat according to the present invention.

Fig. 8 is a schematic rear view of a multi-gear locking mechanism for adjusting the angle of a seat back of a car seat according to the present invention.

FIG. 9 is a schematic sectional view of H-H of FIG. 8.

FIG. 10 is a schematic sectional view of I-I of FIG. 8.

FIG. 11 is a schematic cross-sectional view of K-K of FIG. 8.

Detailed Description

Example 1

The present invention will be further described with reference to the drawings and examples, but the present invention is not limited to the examples, and all similar structures and similar variations using the present invention shall fall within the scope of the present invention.

As shown in fig. 1-11, the multi-gear locking mechanism for adjusting the angle of the backrest of an automobile seat of the present invention comprises a lower cover plate 2, an upper cover plate 1 is disposed on the lower cover plate 2, a notch 20 with a downward opening is disposed in the lower cover plate 2, a first rivet 5 is disposed between the lower cover plate 2 and the upper cover plate 1 at the upper side of the notch 20, a latch bolt 3 is hinged on the first rivet 5, a first torsion spring 4 is disposed between the latch bolt 3 and the first rivet 5, the latch bolt 3 is biased in the counterclockwise direction by the first torsion spring 4, a first bayonet 21 and a second bayonet 22 with a rightward opening are disposed in the latch bolt 3, a driving rivet 6 is disposed on the latch bolt 3 at the left side of the second bayonet 22, the bottom surface of the latch bolt 3 is disposed as an arc surface 23, a second rivet 9 is disposed on the left side of the latch bolt 3 between the lower cover plate 2 and the upper cover plate 1, a driving block 7 is hinged on the second rivet 9, a second torsion spring 8 is disposed between the driving block 7 and the second rivet 9, the driving block 7 is biased clockwise by the second torsion spring 8, a first cushion block 11 is arranged between the upper cover plate 1 and the lower cover plate 2 at the lower side of the driving block 7, a groove 24 is arranged at the upper side of the driving block 7, the transmission rivet 6 is arranged in the groove 24, and a traction mechanism (not shown) is connected to the upper left end 25 of the driving block 7.

Furthermore, the traction mechanism is a pull rod, a steel wire or a pull wire, and the steel wire or the pull wire is connected with the driving block 7 through a sleeve clamp.

Further, upper cover plate 1 and apron 2 down between be provided with second cushion 10 and third cushion 12, be provided with circular arc muscle 28 on the spring bolt 3, the bottom surface and the contact of circular arc muscle 28 of second cushion 10 can reduce the clearance that spring bolt 3 rocked from top to bottom, make spring bolt 3 difficult rock from top to bottom.

Further, a rubber sleeve 16 is fixed between the upper cover plate 1 and the lower cover plate 2 at the right side of the bolt 3 through a rivet.

After the unlocking, the bolt 3 returns under the torsion of the first torsion spring 4, and the arc-shaped surface 23 at the bottom of the bolt 3 hits the rubber sleeve 16, so that the abnormal sound is reduced.

The first cushion block 11, the second cushion block 10 and the third cushion block 12 are all riveted on the upper cover plate 1 through third rivets.

Specifically, the torsion spring, the rivet, the pull rod, the steel wire, the pull wire, the collet, and the like in the embodiment all adopt known schemes in the prior art, which are known to those skilled in the art and are not described herein again.

The unlocking mode can be matched according to the requirements of seat frameworks of various host factories, and when the steel wire and the pull wire are used for unlocking, the steel wire and the pull wire are fixed by installing a sleeve clamp in a hole of the driving block.

The first cushion block 11 plays a role in limiting the driving block 7.

The working principle of the embodiment is as follows:

as shown in fig. 1 and 3, the lock pin is connected to a seat back of the vehicle, F is a locking direction of the lock pin, and the lock pin has a first latch 26 and a second latch 27. Under the initial condition, the back is 0 state, when adjusting the back angle for the first time, manual upwards rotates the back, the back drives the lockpin and pushes in along notch 20, the lockpin shifts up along the arcwall face 23 of lockpin 3, the pressure that promotes the lockpin 3 and overcome first torsional spring 8 uses first rivet 5 to rotate clockwise as the pivot, the second fixture block 27 card of lockpin is gone into in first bayonet socket 21, the lockpin is located the first grade position this moment, the back is 90 to about 95 states, lockpin 3 and lockpin locking under the torsion of first torsional spring 4. Continuing to adjust the angle of the backrest for the second time, pulling the driving block 7 by using the traction mechanism, enabling the driving block 7 to overcome the pressure of the second torsion spring 8 and rotate counterclockwise by taking the second rivet 9 as a rotating shaft, enabling the driving block 7 to drive the lock tongue 3 through the groove 24 and the transmission rivet 6, enabling the lock tongue 3 to overcome the pressure of the first torsion spring 4 and rotate clockwise by taking the first rivet 5 as a rotating shaft, manually rotating the backrest when the lock tongue 3 rotates to a proper position, enabling the second clamping block 27 of the lock pin to be clamped into the second clamping opening 22, enabling the first clamping block 26 to be clamped into the first clamping opening 21, enabling the lock pin to be located at the second gear position, enabling the backrest to be in a state of about 95-100 degrees, loosening the traction mechanism, and enabling the lock pin 3 to be locked with the lock pin under the torsion of the second torsion spring 8.

According to the utility model, the lock tongue 3 is provided with the first bayonet 21 and the second bayonet 22, and can be respectively meshed with the lock pin at two positions during movement, so that two-gear angles are increased, the backrest can be adjusted to about 95-100 degrees from 90 degrees, the comfort level of a user is greatly improved, meanwhile, the lock tongue 3 can be unlocked by pulling the traction mechanism to operate the driving block 7, and the backrest can be laid down after unlocking. The driving block 7 can be made of high-strength plastic materials, and the driving block 7 is provided with the jacket clamp, so that different unlocking forms (steel wires or stay wires) can be adopted when a user uses the device, and the selection of the user in the application range of the product is greatly improved. The utility model enables the backrest angle of the seat to accord with the optimal state of the ergonomic comfort degree, and the opening mode is diversified, namely, the rigidity and the flexibility can be unlocked.

Claims

1. The utility model provides an adjust many grades of locking mechanism of car seat back angle which characterized in that: comprises a lower cover plate (2), an upper cover plate (1) is arranged on the lower cover plate (2), a notch (20) with a downward opening is arranged in the lower cover plate (2), a first rivet (5) is arranged between the lower cover plate (2) and the upper cover plate (1) and on the upper side of the notch (20), a bolt (3) is hinged on the first rivet (5), a first torsion spring (4) is arranged between the bolt (3) and the first rivet (5), the bolt (3) is biased towards the counterclockwise direction by the first torsion spring (4), a first bayonet (21) and a second bayonet (22) with a rightward opening are arranged in the bolt (3), a transmission rivet (6) is arranged on the left side of the second bayonet (22) on the bolt (3), the bottom surface of the bolt (3) is set to be an arc-shaped surface (23), a second rivet (9) is arranged on the left side of the bolt (3) between the lower cover plate (2) and the upper cover plate (1), articulated on second rivet (9) have drive block (7), be provided with second torsional spring (8) between drive block (7) and second rivet (9), second torsional spring (8) are toward clockwise biasing drive block (7), be provided with first cushion (11) at the downside of drive block (7) between upper cover plate (1) and lower apron (2), the upside of drive block (7) has a recess (24), transmission rivet (6) set up in recess (24), upper left end (25) of drive block (7) are connected with drive mechanism.

2. The multi-gear locking mechanism for adjusting the angle of the backrest of the automobile seat as claimed in claim 1, wherein: the traction mechanism is a pull rod, a steel wire or a pull wire, and the steel wire or the pull wire is connected with the driving block (7) through a sleeve clamp.

3. The multi-gear locking mechanism for adjusting the angle of the backrest of the automobile seat as claimed in claim 1, wherein: a second cushion block (10) and a third cushion block (12) are arranged between the upper cover plate (1) and the lower cover plate (2), a circular arc rib (28) is arranged on the bolt (3), and the bottom surface of the second cushion block (10) is in contact with the circular arc rib (28).

4. The multi-gear locking mechanism for adjusting the angle of the backrest of the automobile seat as claimed in claim 1, wherein: a rubber sleeve (16) is fixed between the upper cover plate (1) and the lower cover plate (2) on the right side of the bolt (3) through a rivet.