CN110920483A

CN110920483A - Child safety seat

Info

Publication number: CN110920483A
Application number: CN201911197554.4A
Authority: CN
Inventors: 况志勇; 环小岗
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-03-27

Abstract

The invention relates to a child safety seat which comprises a base and a backrest rotatably connected with the base, wherein a connector matched with an external component is arranged at the rear part of the base, the length of the connector relative to the base is adjustable, the backrest is provided with a first limit position and a second limit position relative to the base, and the backrest can freely rotate between the first limit position and the second limit position relative to the base. The backrest of the child safety seat can freely rotate in a certain angle range relative to the base, the length of the connector relative to the base is adjustable, and the rotation between the backrest and the base and the length adjustment of the connector are two independent actions. When the child safety seat is used, when the angle of the backrest needs to be adjusted, the length of the connector relative to the base is only required to be adjusted, so that the base moves relative to a cushion of an automobile seat, the backrest automatically rotates along with the movement of the base and abuts against a backrest of the automobile seat, and the child safety seat is simple in structure and convenient to adjust.

Description

Child safety seat

Technical Field

The invention relates to the field of children products, in particular to a child safety seat.

Background

The child safety seat is mainly used for children to take a car so as to protect the personal safety of the children. ISOFIX is the fixed mode of current commonly used children's safety seat, through ISOFIX installation and dismantlement children's safety seat that can be quick.

The back that current child safety seat includes the rear end of base and lower extreme and base is connected usually, when installing child safety seat to the car seat and use, the FIX interface connection on ISOFIX coupling assembling on the child safety seat and the car seat, the angle between the base of safety seat during the use and the back is 90 usually, and the angle between base and the back can't be adjusted, can't give the position of taking of the different angles of passenger.

Some manufacturers have also developed a child safety seat with an adjustable backrest angle, such as a system and a method for adjusting the linkage between the ISOFIX and the backrest of the child safety seat disclosed in chinese patent CN106740310A, however, the adjustment of the backrest angle of the system is achieved by two independent actions of adjusting the extending length of the ISOFIX and the adjustment of the backrest angle, and the structure is extremely complex.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and to provide an improved child safety seat.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a child safety seat, includes base and back, the rear portion of base be equipped with external parts complex connector, the base with the back rotates to be connected, the connector is relative the length that the base stretches out is adjustable, the back is relative the base has first extreme position and second extreme position, just the back is relative the base is in free rotation between first extreme position and the second extreme position, works as child safety seat needs to be adjusted when using during the back angle, adjusts the connector is relative the length of base makes the base is relative external parts moves, the back is automatic to be followed the motion of base is rotated and is leaned on the external parts.

Preferably, the connector is an ISOFIX connection mechanism, which includes a connection assembly matched with the external component, an outer tube slidably connected with the connection assembly, and a locking mechanism for fixing the connection assembly and the outer tube relatively, the outer tube is fixedly arranged with the base, and the connector is adjusted relatively to the length of the base by sliding between the connection assembly and the outer tube.

Further, the locking mechanism is a bidirectional locking mechanism for preventing the outer tube from sliding in a direction away from/close to the connecting assembly.

Furthermore, the locking mechanism comprises a locking hook rotatably arranged on one of the connecting component and the outer pipe and a plurality of locking grooves arranged on the other component, the locking grooves are sequentially distributed along the length direction of the other component, and when the locking hook is matched with one of the locking grooves, the locking mechanism is locked; when the lock hooks are separated from all the lock grooves, the locking mechanism is unlocked.

Further, when the child safety seat is used, the backrest has a plurality of positions including the first limit position and the second limit position relative to the base, the plurality of positions are respectively in one-to-one correspondence with the locking hooks and the locking grooves, and the locking hooks and the locking grooves are matched to correspond to different positions of the backrest relative to the base respectively.

According to some embodiment aspects of the invention, the locking hook is rotatably disposed on the outer tube, and the locking groove is opened on the connecting assembly.

Further, the ISO coupling mechanism further comprises an unlocking member for unlocking the locking mechanism.

Furthermore, the lower part of the backrest is rotatably connected with the rear part of the base through a rotating shaft.

Further, the external part is a car seat, when the child safety seat is used, the connector is connected with the interface, matched with the connector, of the car seat, and the backrest abuts against the seat back of the car seat.

Further, when the backrest is at the first limit position relative to the base, an included angle between the backrest and the base is 90 ± 5 degrees, and when the backrest is at the second limit position relative to the base, an included angle between the backrest and the base is 105 ± 5 degrees.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the backrest of the child safety seat can freely rotate in a certain angle range relative to the base, the length of the connector relative to the base is adjustable, and the rotation between the backrest and the base and the length adjustment of the connector are continuous actions. When the child safety seat is used, when the angle of the backrest needs to be adjusted, the base moves relative to the seat cushion of the automobile seat only by adjusting the extending length of the connector relative to the base, and the backrest automatically rotates along with the movement of the base and abuts against the backrest of the automobile seat, so that the child safety seat is simple in structure and convenient to adjust.

Drawings

FIG. 1 is a schematic view of a child safety seat back in a first extreme position in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a back rest of a child safety seat in a second extreme position in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional schematic view of a locking mechanism of a connector employed in a child safety seat according to an embodiment of the present invention in a locked state;

FIG. 4 is a cross-sectional schematic view of a locking mechanism of a connector employed in a child safety seat in a locked state (slide release) in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional schematic view of a child safety seat according to an embodiment of the present invention with the locking mechanism of the connector in an unlocked state;

FIG. 6 is an enlarged schematic view of a latch hook of a latch mechanism of a connector for use in a child safety seat in accordance with an embodiment of the present invention;

FIG. 7 is a side view of a locking mechanism of a connector used in a child safety seat in accordance with an embodiment of the present invention;

in the figure:

100. a backrest; 200. a base; 300. a connector;

1. an outer tube; 1a, an outer tube body; 1b, connecting pieces; 2. a connecting assembly; 2a, an inner tube; 2b, a connecting unit; 3. a latch hook; 3a, a connecting part; 3b, a lock hook part; 3c, an extension; 4. locking the groove; 5. unlocking the lock; 6. a shaft pin; 7. a rotating shaft; 8. a card slot; 9. an avoidance groove; 10. a first chute; 11. a second chute; 12. a third chute; 13. a through hole;

400. an automobile seat.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments in the following description:

referring to fig. 1 and 2, a child safety seat includes a base 200 and a backrest 100 having a lower portion rotatably connected to a rear portion of the base 200 through a rotation shaft, wherein a connector 300 engaged with an external component is provided at the rear portion of the base 200, the connector 300 is adjustable in length relative to the base 200, the backrest 100 has a first limit position and a second limit position relative to the base 200, and the backrest 100 is freely rotatable between the first limit position and the second limit position relative to the base 200, when the child safety seat needs to adjust an angle of the backrest 100 during use, the length of the connector 300 relative to the base 200 is adjusted to move the base 200 relative to the external component, and the backrest 100 automatically follows the movement of the base 200 to rotate and abut against the external component.

The general external component is a car seat 400, when the child safety seat is used, the connector 300 is connected with an interface of the car seat 400 for being matched with the connector 300, the backrest 100 is abutted against the backrest of the car seat 400, and the base 200 is placed on the cushion of the car seat 400.

As shown in fig. 1, when the backrest 100 is at a first extreme position relative to the base 200, an included angle between the backrest 100 and the base 200 is generally 90 ± 5 °, for example 90 °, the backrest 100 is at an upright position, the upper portion and the lower portion of the backrest 100 respectively abut against the seat backs of the automobile seats 400, and at this time, the length of the connector 300 extending relative to the base 200 is shortest; when the backrest 100 is in the second extreme position with respect to the base 200, as shown in fig. 2, the included angle between the backrest 100 and the base 200 is generally 105 ± 5 °, the backrest 100 is in the inclined standing position, the upper portion of the backrest 100 abuts against the seat back of the automobile seat 400, and a certain distance exists between the lower portion of the backrest 100 and the seat back of the automobile seat 400, at this time, the length of the connector 300 extending with respect to the base 200 is longest. The base 200 slides relative to the cushion of the automobile seat 400 by adjusting the extending length of the connector 300 relative to the base 200, and the backrest 100 automatically rotates along with the movement of the base 200, so that the included angle between the backrest 100 and the base 200 is adjustable between 90 degrees plus or minus 5 degrees and 105 degrees plus or minus 5 degrees.

The connector 300 used in the child safety seat of the present invention may be an ISOFIX connection mechanism or may be a connector of other configurations.

In this example, the connector 300 is an ISOFIX connection mechanism, and includes a connection assembly 2 that is engaged with an external component, an outer tube 1 that is slidably connected to the connection assembly 2, a locking mechanism for fixing the connection assembly 2 and the outer tube 1 relatively, and an unlocking member for unlocking the locking mechanism, where the outer tube 1 is fixedly disposed on the base 200, and the sliding between the connection assembly 2 and the outer tube 1 realizes the adjustment of the extending length of the connector 300 relative to the base 200.

For safety stability of the child safety seat, the locking mechanism is a two-way locking mechanism for preventing the base 200 from sliding in both directions away from and towards the connecting assembly 2. The locking mechanism may be a structure of a locking mechanism that is commonly used in an existing ISOFIX connection mechanism, or may be a structure as in this example, as shown in fig. 3 to 7.

Referring to fig. 3 to 7, the outer tube 1 includes an outer tube body 1a fixedly arranged with the base 200 and a connecting member 1b fixedly arranged on the outer side wall of the outer tube body 1a, the connecting assembly 2 includes an inner tube 2a slidably connected with the outer tube body 1a and a connecting unit 2b fixedly connected with the inner tube 2a, which are inserted in the tube cavity of the outer tube body 1a, and the connecting unit 2b is used for being connected with an interface of the car seat 400.

The locking mechanism comprises a locking hook 3 rotatably arranged on the connecting piece 1b and a plurality of locking grooves 4 formed in the inner pipe 2b, the locking grooves 4 are sequentially distributed along the length direction of the inner pipe 2b, and when the locking hook 3 is matched with one locking groove 4 in the locking grooves 4, the locking mechanism is locked; when the shackle 3 is disengaged from all the locking grooves 4, the locking mechanism is unlocked. When the child safety seat is used, the backrest 100 has a plurality of positions including a first limit position and a second limit position relative to the base 200, the plurality of positions are respectively in one-to-one correspondence with the locking hooks 3 and the locking grooves 4, and the locking hooks 3 and the locking grooves 4 are respectively matched with different positions of the backrest 100 relative to the base 200, that is, different included angles between the backrest 100 and the base 200 are corresponded.

In this example, the unlocking piece 5 is slidably connected to the connecting piece 1b and slidably disposed along the length direction of the outer tube body 1a, the locking hook 3 is further relatively rotatably and slidably disposed with the unlocking piece 5, when unlocking is performed, the unlocking piece 5 is operated to slide along the outer tube 1, the unlocking piece 5 slides relative to the locking hook 3 to abut against the locking hook 3, the unlocking piece 5 is continuously operated to slide, and the unlocking piece 5 drives the locking hook 3 to rotate to disengage from the locking groove 4, so that unlocking of the locking mechanism is realized.

In this example, the unlocking piece 5 is slidably connected with the connecting piece 1b through the shaft pin 6, the locking hook 3 is provided with a clamping groove 8 which is sequentially distributed along the sliding direction of the unlocking piece 5 and is used for being matched with the shaft pin 6 to limit the rotation of the locking hook 3 and an avoiding groove 9 which is communicated with the clamping groove 8 and is used for avoiding the shaft pin 6, when the locking mechanism is in a locking state, the shaft pin 6 is positioned in the clamping groove 8 to limit the rotation of the locking hook 3, when the unlocking piece 5 is operated to slide along the outer tube body 1a, the shaft pin 6 slides out of the clamping groove 8 and enters the avoiding groove 9, the rotation of the locking hook 3 is not limited by the shaft pin 6, the unlocking piece 5 is continuously operated to slide to drive the. Due to the arrangement of the clamping groove 8 and the avoiding groove 9, on one hand, when the pivot pin 6 is positioned in the clamping groove 8, the rotation of the locking hook 3 is limited by the pivot pin 6, and no matter the base 200 is pushed towards the direction close to the connecting assembly 2 or the base 200 is pulled towards the direction far away from the connecting assembly 2, the locking hook 3 is always positioned in the locking groove 4 and matched with the locking groove 4 to relatively fix the outer pipe body 1a and the inner pipe 2 a; on the other hand, when the pivot 6 slides to being located and dodging groove 9, the rotation of latch hook 3 is not restricted by pivot 6, continue to operate unlocking piece 5 and slide, unlocking piece 5 can drive latch hook 3 to rotate and then break away from locked groove 4 and realize the unblock, and when base 200 pushed to the direction that is close to coupling assembling 2 during the tension, will unlock piece 5 slide to making pivot 6 slide in and dodge groove 9, because the rotation of latch hook 3 can not receive the restriction of pivot 6, and the locked groove 4 wall of inner tube 2a still can produce to latch hook 3 and make latch hook 3 to unblock direction pivoted effort, only need to continue to slide unlocking piece 5 and realize the unblock promptly, the phenomenon that latch hook 3 was blocked can not appear, the unblock is convenient.

In this embodiment, a first sliding groove 10 is formed in the connecting piece 1b along the sliding direction of the unlocking piece 5, the shaft pin 6 is fixedly connected with the unlocking piece 5, the shaft pin 6 is further located in the first sliding groove 10, and the sliding of the unlocking piece 5 drives the shaft pin 6 to slide in the first sliding groove 10.

In this example, the locking hook 3 is rotatably connected with the connecting piece 1b through the rotating shaft 7, a through hole 13 is formed in the position of the outer tube body 1a corresponding to the locking hook 3, and the locking hook 3 penetrates through the through hole 13 to be locked or separated with the locking groove 4 in a matching manner. Set up second spout 11 along unlocking piece 5's slip direction on unlocking piece 5, pivot 7 still rotationally inserts and establishes in second spout 11, and when operation unlocking piece 5 slided, latch hook 3 slided drive pivot 7 and slided in second spout 11 relative to unlocking piece 5.

Specifically, as shown in fig. 6, the structure of the latch hook 3 includes a connecting portion 3a, a latch hook portion 3b and an extension portion 3c respectively formed at both sides of the connecting portion 3a, the latch hook portion 3b and the extension portion 3c are respectively located at opposite sides of both ends of the connecting portion 3a, the latch hook portion 3b is passed through the through hole 13 to be locked or separated with the latch groove 4, and the extension portion 3c is disposed through the unlocking piece 5. Set up the third spout 12 that extends along the slip direction of unblock piece 5 in the position that corresponds extension 3c on unblock piece 5, extension 3c is located third spout 12 and sets up in third spout 12 with sliding, when locking mechanical system is in locking state, extension 3c is located an end of third spout 12, during the unblock, operation unblock piece 5 slides on outer tube body 1a, extension 3c slides to another end of third spout 12 from an end of third spout 12 relative to third spout 12, then offsets with unblock piece 5, continue to slide unblock piece 5, unblock piece 5 drives latch hook 3 and rotates and make latch hook 3 break away from locked groove 4. The clamping groove 8 and the avoiding groove 9 are respectively arranged on the connecting part 3a, and the rotating shaft 7 is also fixedly arranged on the connecting part 3 a.

In this example, the ISOFIX connection mechanism further includes an elastic member disposed between the unlocking member 5 and the outer tube 1 for elastically restoring the unlocking member 5 under an external force.

The working principle of the child safety seat is as follows:

the child safety seat is mounted on the car seat 400, the connecting assembly 2 of the connector 300 is connected with the interface of the car seat 400, and then the base 200 is pushed towards the direction close to the back of the car seat 400 so that the child safety seat is close to the back of the car seat 400, as shown in fig. 1, the backrest 100 is at the first limit position, and the length of the connector 300 relative to the base 200 is the shortest. When the angle of the backrest 100 needs to be adjusted, the unlocking piece 5 is operated to unlock the locking mechanism, the base 200 is pulled to slide in the direction away from the backrest of the automobile seat 400, the backrest 100 automatically rotates backwards along with the movement of the base 200 and always abuts against the backrest of the automobile seat 400, and when the backrest 100 is adjusted to a proper angle, the unlocking piece 5 is released, and the locking mechanism is automatically locked. When the locking mechanism is unlocked and the base 200 is slid in a direction away from the backrest of the car seat 400 until the length of the connector 300 extending relative to the base 200 reaches the maximum, the backrest 100 always automatically follows the movement of the base 200 and turns backwards to reach the second limit position, as shown in fig. 2, the unlocking member 5 is released, and the locking mechanism is automatically locked.

The angle adjustment of the backrest 100 of the child safety seat can also be adjusted in the opposite direction, that is, the angle adjustment is gradually performed from the second limit position of the backrest 100 to the first limit position of the backrest 100, and only the direction in which the connector 300 extends from the longest length relative to the base 200 to the shortest length relative to the base 200 needs to be adjusted, that is, the base 200 shown in fig. 2 slides in the direction close to the backrest of the vehicle seat 400.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a child safety seat, includes base and back, the rear portion of base is equipped with the connector with external component complex, its characterized in that: the base with the back is rotated and is connected, the connector is relative the length that the base stretches out is adjustable, the back is relative the base has first extreme position and second extreme position, just the back is relative the base is in free rotation between first extreme position and the second extreme position, works as children's safety seat needs to be adjusted when using during the back angle, adjust the connector is relative the length of base makes the base is relative external component moves, the back is automatic to be followed the motion of base and rotate and support and lean on the external component.

2. The child safety seat according to claim 1, wherein: the connector is ISOFIX coupling mechanism, its include with external component complex coupling assembling, with coupling assembling sliding connection's outer tube and be used for with coupling assembling and outer tube relatively fixed's locking mechanical system, the outer tube sets up with the base is fixed, the slip between coupling assembling and the outer tube is realized the connector is relative the adjustment of the length of base.

3. The child safety seat according to claim 2, wherein: the locking mechanism is a bidirectional locking mechanism used for preventing the outer pipe from sliding in the direction far away from/close to the connecting assembly.

4. A child safety seat according to claim 2 or 3, wherein: the locking mechanism comprises a locking hook rotatably arranged on one of the connecting assembly and the outer pipe and a plurality of locking grooves formed in the other part, the locking grooves are sequentially distributed along the length direction of the other part, and when the locking hook is matched with one of the locking grooves, the locking mechanism is locked; when the lock hooks are separated from all the lock grooves, the locking mechanism is unlocked.

5. The child safety seat according to claim 4, wherein: when the child safety seat is used, the backrest is provided with a plurality of positions including the first limit position and the second limit position relative to the base, the positions are respectively in one-to-one correspondence with the locking hooks and the locking grooves, and the locking hooks and the different locking grooves are respectively matched with different positions of the backrest relative to the base.

6. The child safety seat according to claim 4, wherein: the latch hook rotates and sets up on the outer tube, the locked groove is seted up on coupling assembling.

7. The child safety seat according to claim 2, wherein: the ISO coupling further includes an unlocking member for unlocking the locking mechanism.

8. The child safety seat according to claim 1, wherein: the lower part of the backrest is rotatably connected with the rear part of the base through a rotating shaft.

9. The child safety seat according to claim 1, wherein: the external part is a car seat, when the child safety seat is used, the connector is connected with the interface matched with the connector, and the backrest abuts against the seat back of the car seat.

10. The child safety seat according to claim 1, wherein: when the backrest is at the first limit position relative to the base, an included angle between the backrest and the base is 90 +/-5 degrees, and when the backrest is at the second limit position relative to the base, an included angle between the backrest and the base is 105 +/-5 degrees.