CN107776443B

CN107776443B - Safety seat and backrest angle adjusting mechanism thereof

Info

Publication number: CN107776443B
Application number: CN201610729376.5A
Authority: CN
Inventors: 崔宗旺
Original assignee: Wonderland Nurserygoods Co Ltd Hong Kong
Current assignee: Wonderland Nurserygoods Co Ltd Hong Kong
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2023-06-23
Anticipated expiration: 2036-08-25
Also published as: GB2589041A; GB201713127D0; GB2555686B; CN116424177A; CN107776443A; DE102017214673A1; GB202102433D0; JP2018030577A; GB2589041B; GB2555686A8; JP6435380B2; GB2555686A; DE102017214673B4

Abstract

The invention discloses a backrest angle adjusting mechanism which is suitable for a safety seat and comprises a sliding groove arranged along the sliding direction of the seat and a connecting rod in sliding fit with the sliding groove, wherein the sliding groove is arranged on a base of the safety seat, the connecting rod is fixed on the seat, and when the seat slides relative to the base, the connecting rod can drive the backrest pivoted with the seat to move, so that the height of the backrest propped against the base is changed, the backrest angle adjusting mechanism is realized, the angle of the seat relative to the base is unchanged in the process, the operation of backrest angle adjusting is more convenient, and the backrest angle adjusting mechanism is simple in structure. The invention also discloses a safety seat with the backrest angle adjusting mechanism.

Description

Safety seat and backrest angle adjusting mechanism thereof

Technical Field

The invention relates to the technical field of children products, in particular to a safety seat and a backrest angle adjusting mechanism thereof.

Background

Along with the wide use of infant carriers, the functional requirements of people on infant carriers are higher and higher, so that the infant carriers are expected to be safer in the riding process, and the infant carriers are expected to be more comfortable and pleasant to ride, and are expected to be more convenient to use and operate.

Taking the safety seat as an example, after the safety seat is arranged on the automobile seat, the infant is bound on the safety seat by using the binding device, so that the probability that the infant is injured under the condition of emergency braking or accidental collision of the automobile can be effectively reduced. The existing safety seat generally comprises a seat and a backrest, wherein an angle adjusting device is arranged on the backrest to adjust the angle between the backrest and the seat, so that the safety seat is suitable for different requirements of infants and the riding comfort of the infants is improved. However, most of the angle adjusting devices provided on the existing safety seats are complicated in structure, and the angle of the seat and the backrest is changed integrally with respect to the base when the angle is adjusted, so that the angle of the backrest with respect to the seat cannot be changed independently, and the use is limited.

Therefore, it is necessary to provide a backrest angle adjusting mechanism and a safety seat with simple structure and easy operation, so as to solve the above-mentioned shortcomings in the prior art.

Disclosure of Invention

The invention aims to provide a backrest angle adjusting mechanism which is simple in structure and convenient to operate.

Another object of the present invention is to provide a safety seat having a simple structure and easy operation of the reclining angle adjustment mechanism.

In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a back angle adjustment mechanism, it is applicable to safety seat, safety seat includes the base, sliding connection is in the seat of base and the back of pin joint in the seat, this back angle adjustment mechanism includes the sliding tray that sets up along the slip direction of seat and with sliding tray sliding fit's connecting rod, the base is located to the sliding tray, the connecting rod is fixed in the seat, the seat is fixed for the base slip and drive the back and make its high change of leaning on the base, and then realize the angle adjustment of back.

Preferably, the back angle adjusting mechanism further comprises a positioning component arranged between the seat and the base for locking the seat to the base.

Preferably, the back angle adjusting mechanism further comprises a clamping part arranged along the sliding direction of the seat, the clamping part is arranged on the base, the positioning component is arranged on the seat, and the positioning component has a locking state with the clamping part Xiang Kage and a releasing state separated from the clamping part.

Preferably, the engaging portion is a plurality of engaging holes formed along a sliding direction of the seat.

Preferably, the positioning assembly comprises a locking piece, a driving piece and an operating piece; the locking piece is provided with a first position which is engaged with the engaging part and a second position which is disengaged from the engaging part; the driving piece is arranged in a sliding way and connected with the locking piece, and the driving piece slides to drive the locking piece to be converted between a first position and a second position; the operating piece is arranged in a sliding mode along the sliding direction of the seat and is connected with the driving piece, and the operating piece slides to drive the driving piece to slide.

Preferably, the operating member is provided with a driving groove, the driving member is provided with a convex column matched with the driving groove in a convex manner, the convex column penetrates through the driving groove, and the operating member slides to drive the driving member to slide by the driving groove and the convex column.

Preferably, the extending direction of the driving groove is staggered with the sliding direction of the seat.

Preferably, the sliding direction of the driving member is perpendicular to the sliding direction of the seat.

Preferably, the positioning assembly further comprises a reset piece which is in contact with the operation piece, and the reset piece is used for driving the operation piece to reset.

Preferably, the operating member protrudes forward of the seat.

Preferably, the reclining angle adjustment mechanism further includes a connection assembly connected between the reclining and a reclining tube of the safety seat.

Preferably, the connecting assembly comprises a backrest fixing part fixed on the backrest and a cross rod fixed on the backrest fixing part, and the cross rod is connected with the backrest pipe in a sliding mode, and when the angle of the backrest relative to the base is adjusted, the position of the backrest pipe relative to the base is unchanged.

Preferably, the backrest tube is provided with a connecting groove axially arranged along the backrest tube, and the cross rod is slidably arranged in the connecting groove in a penetrating manner.

Correspondingly, the invention also discloses a safety seat which comprises a base, a seat slidingly connected with the base, a backrest pivoted with the seat and the bottom of which is propped against the base, and the backrest angle adjusting mechanism.

Preferably, the base is fixed with a base fixing piece, the sliding groove is formed in the base fixing piece, and the connecting rod is arranged in the sliding groove in a sliding penetrating mode and is fixed to the seat.

Preferably, the backrest angle adjusting mechanism further comprises a connecting piece, one end of the connecting piece is pivoted to the connecting rod, the other end of the connecting piece is connected to the backrest, and the backrest is linked to move by the connecting rod and the connecting piece in a sliding manner.

Preferably, the clamping part is arranged on the base fixing piece.

Preferably, the seat is fixed with a seat fixing member, and the seat fixing member is fixed with the connecting rod.

Preferably, the safety seat further comprises a backrest tube fixed on the base, and the backrest tube and the backrest are connected through a connecting assembly.

Preferably, the rear end of the base is provided with an inclined abutting surface, and the bottom of the backrest can be detachably abutted against the abutting surface.

Compared with the prior art, the backrest angle adjusting mechanism comprises the sliding groove arranged along the sliding direction of the seat and the connecting rod in sliding fit with the sliding groove, wherein the sliding groove is arranged on the base of the safety seat, the connecting rod is fixed on the seat, and when the seat slides relative to the base, the connecting rod can drive the backrest pivoted with the seat to move, so that the height of the backrest propped against the base is changed, the backrest angle adjustment is realized, the angle of the seat relative to the base is unchanged in the process, the operation of the backrest angle adjustment is more convenient, and the backrest angle adjusting mechanism has a simple structure. Correspondingly, the safety seat with the backrest angle adjusting mechanism has the same effect.

Drawings

FIG. 1 is a side view of the backrest of the safety seat of the invention in a first position.

Fig. 2 is a cross-sectional view of fig. 1.

Figure 3 is a side view of the backrest of the safety seat of the invention in a second position.

Fig. 4 is a cross-sectional view of fig. 3.

Fig. 5 is a rear view of the safety seat of the present invention.

Fig. 6 is a schematic view of the housing of fig. 5 with the backrest removed.

Fig. 7 is a schematic structural view of the reclining angle adjustment mechanism of the present invention.

Fig. 8 is a schematic view of the structure of the backrest of fig. 7 with the backrest further removed.

Fig. 9 is a schematic view showing the structure of the safety seat removal backrest of the present invention.

Fig. 10 is a schematic view of the structure of the removed seat of fig. 9.

Fig. 11 is another state diagram of fig. 10.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout.

Referring first to fig. 1-4, the safety seat 1 of the present invention includes a base 10, a seat 20 slidably coupled to the base 10, a backrest 30 pivotally coupled to the seat 20 and having a bottom portion that abuts the base 10. The invention drives the backrest 30 to act by sliding the seat 20 along the base 10, so that the height of the backrest 30 propped against the base 10 is changed, and the angle adjustment of the backrest 30 is further achieved.

Specifically, the rear end of the base 10 is provided with an inclined abutting surface 11, and the bottom of the backrest 30 is detachably abutted against the abutting surface 11.

Referring to fig. 5 to 6, the safety seat 1 further includes a back tube 40 fixed to the rear end of the base 10 and a top tether 50 fixed to the upper end of the back tube 40. The backrest 30 is disposed outside the backrest tube 40, and the top tie 50 is exposed outside the backrest 30. In the present invention, when the angle of the backrest 30 is adjusted, the angle of the backrest 30 relative to the base 10 is changed, but the position of the backrest tube 40 relative to the base 10 is not changed, so that the angle of the backrest 30 can be changed without adjusting the tightness of the top tie 50 (see later in detail), and the operation is more convenient.

Referring to fig. 2 and 4 again, the safety seat 1 of the present invention further includes a backrest angle adjusting mechanism 60, and by means of the arrangement of the backrest angle adjusting mechanism 60, the backrest 30 can be moved in conjunction with the forward and backward sliding of the seat 20 relative to the base 10, so that the height of the backrest 30 against the base 10 is changed, and the angle adjustment of the backrest 30 is achieved, while the angle of the seat 20 relative to the base 10 is unchanged.

Specifically, the reclining angle adjustment mechanism 60 includes a slide groove 61 provided along the sliding direction of the seat 20 and a connecting rod 62 slidably fitted to the slide groove 61, wherein the slide groove 61 is provided in the base 10, and the connecting rod 62 is fixed to the seat 20.

The backrest angle adjusting mechanism 60 further comprises an engaging portion 63 disposed along the sliding direction of the seat 20 and a positioning assembly 64 matched with the engaging portion 63, wherein the engaging portion 63 is disposed on the base 10, the positioning assembly 64 is disposed on the seat 20, the positioning assembly 64 has a locking state with the engaging portion 63 Xiang Kage and a releasing state separated from the engaging portion 63, when the positioning assembly 64 is in the locking state, the positioning assembly 64 locks the seat 20 to the base 10, and when the positioning assembly 64 is in the releasing state, the seat 20 can slide relative to the base 10.

As shown in fig. 2, 4, and 6-7, the back angle adjustment mechanism 60 further includes at least one connecting member 65, wherein the connecting member 65 is pivotally connected to the connecting rod 62, and the connecting member 65 is connected to the lower end of the back rest 30. When the seat 20 slides, the connecting rod 62 pulls the connecting piece 65 to drive the backrest 30 to act, so that the backrest 30 can be adjusted in angle relative to the base 10.

In addition, the backrest angle adjusting mechanism 60 further comprises a connecting component 66 connected between the backrest 30 and the backrest tube 40, and by means of the arrangement of the connecting component 66, when the backrest 30 is adjusted in angle relative to the base 10, the position of the backrest tube 40 relative to the base 10 is unchanged, so that the angle of the backrest 30 can be adjusted without adjusting the tightness of the top lacing 50, and the operation is simpler and more convenient.

Referring to fig. 7 to 11, in an embodiment of the present invention, a base fixing member 12 is further fixed to the base 10, and the sliding groove 61 and the engaging portion 63 are both disposed on the base fixing member 12 and both are disposed along the sliding direction of the seat 20. The connecting rod 62 is slidably inserted into the slide groove 61 and fixed to the rear end of the seat 20, and the positioning unit 64 is provided at the front end of the seat 20 and detachably engaged with the engaging portion 63.

Preferably, the rear end of the seat 20 is also fixed with a seat fixing member 21, the seat fixing member 21 is fixed with a connecting rod 62, and when the seat 20 slides, the connecting rod 62 connected with the seat fixing member 21 is driven by the seat fixing member 21 to slide in the sliding groove 61.

In the present embodiment, the base fixing member 12 and the seat fixing member 21 are preferably iron sheets, but not limited thereto.

Referring to fig. 7 and 10, in this embodiment, in order to ensure the sliding stability of the seat 20, a sliding guide groove 61a is further formed at the front end of the base fixing member 12, and a guide rod 62a is disposed through the sliding guide groove 61a and connected to the front end of the seat 20, and it is understood that more sliding guide grooves 61a may be further disposed, which is a technology well known to those skilled in the art.

In addition, referring to fig. 10-11, the present invention has the back tube 40 welded to the base fixture 12, and thus, the position of the back tube 40 is not changed regardless of the angle of the back 30.

With continued reference to fig. 7-11, the engaging portion 63 is a plurality of engaging holes formed on the base fixing member 12 along the sliding direction of the seat 20, and the positioning assembly 64 is detachably engaged in any one of the engaging holes. When the positioning assembly 64 is disengaged from the engagement holes, the seat 20 can slide relative to the base 10, and when the positioning assembly 64 is engaged in any one of the engagement holes, the seat 20 is locked on the base 10.

As shown below in connection with fig. 4, 10-11, the positioning assembly 64 includes an operating member 641, a driving member 642, a locking member 643, and a resetting member 644 (see fig. 4). Wherein the operation element 641 is slidably disposed along the sliding direction of the seat 20 and is connected to one end of the driving element 642, and the end thereof is exposed to the front of the seat 20; the driving element 642 is arranged along the direction perpendicular to the sliding direction of the seat 20, the other end of the driving element 642 is fixed with the locking element 643, and the locking element 643 has a first position which is engaged with the engaging part 63 and a second position which is disengaged from the engaging part 63; the return member 644 abuts between the operation member 641 and the seat 20. The sliding of the operating member 641 can drive the driving member 642 to slide, the driving member 642 slides to drive the locking member 643 to switch between the first position and the second position, and the resetting member 644 is used for driving the operating member 641 to reset.

Referring to fig. 8 and 11, the operation piece 641 is provided with a driving groove 6411, and the extending direction of the driving groove 6411 is staggered with the sliding direction of the seat 20; the driver 642 has a projection 6421 protruding from it, which cooperates with the driving groove 6411, and the projection 6421 is inserted into the driving groove 6411. When the operation member 641 is pulled outward, the operation member 641 slides to move the driving member 642 in a direction perpendicular to the sliding direction of the seat 20 by the interaction of the driving slot 6411 and the boss 6421, so that the locking member 643 is disengaged from the engagement hole, and the seat 20 and the base 10 can slide relatively to each other, thereby realizing the angle adjustment of the backrest 30.

In the present invention, the return member 644 is preferably a spring, both ends of which abut against the operation member 641 and the seat 20, respectively, and when the operation member 641 is pulled outward, the return member 644 is compressed, and after the force applied to the operation member 641 is lost, the return member 644 returns to its deformed state to return the operation member 641. Of course, the return 644 is not limited to a spring.

Referring again to fig. 6-8, the connection assembly 66 includes a back fixing member 661 fixed to the back 30 and a crossbar 662 fixed to the back fixing member 661, and the crossbar 662 is slidably connected to the back tube 40. The backrest tube 40 has a connecting slot 41 formed along an axial direction thereof, and the cross bar 662 slidably penetrates the connecting slot 41. The crossbar 662 slides up and down the backrest tube 40 as the angle of the backrest 30 relative to the base 10 is adjusted.

The following describes the process of adjusting the angle of the backrest 30 of the safety seat 1 according to the invention, in conjunction with the illustration of fig. 1 to 11.

Referring first to fig. 1-2, when the backrest 30 of the safety seat 1 is in the first position, the backrest 30 abuts against the uppermost portion of the abutting surface 11, and the rear side edge of the backrest 30 protrudes from the rear edge of the base 10.

When the angle of the backrest 30 is adjusted, the operation member 641 is pulled outwards, the operation member 641 slides to drive the driving member 642 to move along a direction perpendicular to the sliding direction of the seat 20, and then the locking member 643 is driven to disengage from the engaging hole, so that the seat 20 and the base 10 can slide relatively, as shown in fig. 10.

Then, the seat 20 is pulled to slide forward of the safety seat 1, and the seat 20 and the base 10 are kept parallel to each other during the sliding of the seat 20, so that the seat 20 does not change in angle relative to the base 10 and does not tilt. The seat 20 slides to drive the connecting rod 62 to slide forwards along the sliding groove 61, and the connecting piece 65 pivoted with the connecting rod 62 is pulled by the connecting rod 62, so that the backrest 30 is linked to slide forwards along the base 10, as shown in fig. 7-8; the cross bar 662 fixed on the backrest 30 slides along the backrest tube 40 in the connecting groove 41, so that the angle of the backrest 30 relative to the backrest tube 40 is changed, and the angle of the backrest 30 is adjusted. When the angle is adjusted to a proper angle, the operation element 641 is released, and the operation element is reset under the action of the reset element 644, so that the driving element 642 is driven to move, and the locking element 643 is engaged in the corresponding engaging hole, so that the seat 20 is locked to the base 10 again.

In addition, the position of the back rest tube 40 is unchanged during the angle adjustment of the back rest 30 relative to the base 10, so that the angle of the back rest 30 can be adjusted without adjusting the tightness of the top lacing 50, and the operation is simpler and more convenient.

As shown in fig. 8 and 11, when the connecting rod 62 slides to abut against the front end portion of the sliding groove 61, the angle between the backrest 30 and the seat 20 is maximized, and at this time, the backrest 30 abuts against the lowermost portion of the abutting surface 11, and the rear side edge of the backrest 30 is located within the rear edge of the base 10, as shown in fig. 3 to 4.

When the angle of the backrest 30 needs to be adjusted again, the operation member 641 is pulled outwards to drive the locking member 643 to disengage from the engagement hole, so that the seat 20 can be pushed to slide along the base 10 towards the rear of the safety seat 1, the connecting rod 62 fixed at the rear end of the seat 20 is linked to slide the backrest 30 towards the rear of the safety seat 1, and finally the backrest 30 can be adjusted to the state shown in fig. 1-2.

In summary, since the backrest angle adjusting mechanism 60 of the present invention includes the sliding groove 61 disposed along the sliding direction of the seat 20 and the connecting rod 62 slidably engaged with the sliding groove 61, and the sliding groove 61 is disposed on the base 10 of the safety seat 1, the connecting rod 62 is fixed to the seat 20, when the seat 20 slides relative to the base 10, the backrest 30 pivotally connected to the seat 20 is driven to move, so that the height of the backrest 30 against the base 10 is changed, and the angle adjustment of the backrest 30 is achieved, and in this process, the angle of the seat 20 relative to the base 10 is unchanged, so that the angle adjustment of the backrest 30 is convenient; and the back angle adjusting mechanism 60 is simple in structure.

Correspondingly, the safety seat 1 having the reclining angle adjustment mechanism 60 also has the same effect.

The construction of the other parts of the safety seat 1 according to the invention is well known to the person skilled in the art and will not be described in detail here.

The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims

1. The utility model provides a back angle adjustment mechanism, is applicable to safety seat, safety seat include the base, sliding connection in the seat of base and pin joint in the back of seat, its characterized in that includes:

the sliding groove and the sliding guide groove are arranged along the sliding direction of the seat, and are respectively arranged on the base;

the connecting rod is in sliding fit with the sliding groove, and the guide rod is in sliding fit with the sliding guide groove, and the connecting rod and the guide rod are respectively fixed on the seat;

one end of the connecting piece is pivoted with the connecting rod, and the other end of the connecting piece is connected with the backrest;

the back support is arranged outside the back support pipe, and the top lacing is exposed outside the back support;

the seat slides relative to the base, the connecting rod and the connecting piece drive the backrest to be abutted against the base to change the height of the backrest, so that the angle adjustment of the backrest is realized, the position of the backrest pipe relative to the base is unchanged when the angle adjustment of the backrest relative to the base is realized,

the safety seat comprises a connection assembly connected between the backrest and a backrest tube of the safety seat,

the connection assembly includes:

a back fixing member fixed to the back;

the cross rod is fixed on the back support fixing piece and is connected with the back support tube in a sliding way,

the backrest tube is provided with a connecting groove which is axially arranged along the backrest tube, and the cross rod is slidably arranged in the connecting groove in a penetrating mode.

2. The reclining angle adjustment mechanism of claim 1, further comprising a positioning assembly disposed between said seat and said base for locking said seat to said base.

3. The reclining angle adjustment mechanism of claim 2, further comprising an engagement portion disposed along a sliding direction of the seat, the engagement portion being disposed on the base, the positioning assembly being disposed on the seat, the positioning assembly having a locked state with the engagement portion Xiang Kage and a unlocked state disengaged from the engagement portion.

4. The reclining angle adjustment mechanism of claim 3, wherein the engagement portion is a plurality of engagement holes that are opened along a sliding direction of the seat.

5. The reclining angle adjustment mechanism of claim 3, wherein said positioning assembly comprises:

a locking member having a first position engaged with the engaging portion and a second position disengaged from the engaging portion;

the driving piece is arranged in a sliding way and connected with the locking piece, and the driving piece slides to drive the locking piece to be converted between the first position and the second position;

and the operating piece is arranged along the sliding direction of the seat in a sliding way and is connected with the driving piece, and the operating piece slides to drive the driving piece to slide.

6. The reclining angle adjustment mechanism of claim 5, wherein the operating member is provided with a driving slot, the driving member is provided with a protruding column protruding therefrom, the protruding column is disposed in the driving slot in a penetrating manner, and the operating member slides to drive the driving member to slide by the driving slot and the protruding column.

7. The reclining angle adjustment mechanism of claim 6, wherein the direction of extension of the drive slot is staggered with respect to the sliding direction of the seat.

8. The reclining angle adjustment mechanism of claim 5, wherein a sliding direction of said drive member is perpendicular to a sliding direction of said seat.

9. The reclining angle adjustment mechanism of claim 5, wherein said positioning assembly further comprises a reset member in interference with said operating member, said reset member for actuating said operating member to reset.

10. The reclining angle adjustment mechanism of claim 5, wherein said operating member protrudes forward of said seat.

11. A safety seat, comprising: a base, a seat slidably connected to the base, a backrest pivotally connected to the seat and having a bottom portion abutting the base, and a backrest angle adjustment mechanism as claimed in any one of claims 1 to 10.

12. The safety seat according to claim 11, wherein a base fixing member is fixed on the base, the sliding groove and the sliding guide groove are respectively formed in the base fixing member, and the connecting rod is slidably arranged in the sliding groove in a penetrating manner and is fixed on the seat.

13. The safety seat of claim 12, wherein the engagement portion is provided on the base fixture.

14. The safety seat of claim 12, wherein a seat mount is secured to the seat, the seat mount being secured to the connecting rod.

15. The safety seat of claim 11, wherein the backrest tube and the backrest are connected by the connection assembly.

16. The safety seat of claim 11, wherein the rear end of the base is provided with an inclined abutment surface against which the bottom of the backrest is removably abutted.