CN210027119U

CN210027119U - Children car seat and ISOFIX coupling mechanism thereof

Info

Publication number: CN210027119U
Application number: CN201920204954.2U
Authority: CN
Inventors: 张有才; 钱骏
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2020-02-07
Anticipated expiration: 2029-02-18

Abstract

The utility model discloses a children's car seat and ISOFIX coupling mechanism thereof, ISOFIX coupling mechanism include body frame, ISOFIX. The body frame is provided with two slide rails, the ISOFIX is provided with two shafts which are respectively matched and connected with the two slide rails, each slide rail is provided with a connected end part and an extending part, the end parts of the two slide rails provide rotation guide for the two shafts, the extending parts of the two slide rails only provide sliding guide for the two shafts, when the ISOFIX connecting mechanism is in a first working state, the two shafts are respectively connected with the end parts of the corresponding slide rails, and when the ISOFIX connecting mechanism is in a second working state, the two shafts are respectively connected with the corresponding extending parts. When children's car seat and car seat installed, ISOFIX can rotate to the installation, when normal use after the installation is accomplished, ISOFIX then can not rotate, and children's car seat is fixed motionless when receiving the striking, and no longer to leaning forward has reduced children's head displacement.

Description

Children car seat and ISOFIX coupling mechanism thereof

Technical Field

The utility model relates to a children's car seat's ISOFIX coupling mechanism and children's car seat.

Background

The child car seat is mainly used when a child takes a car, can effectively protect the safety of the child taking the car, and comprises a base connected with a car seat and a seat connected to the base and used for the child to take. In order to make the connection between the child car seat and the car seat simpler and more secure, more and more child car seats choose to use ISOFIX (international standards Organization fixing device). In order to conveniently install the child car seat on the car seat, some ISOFIX are set up to be rotatably connected on the base, but rotatable ISOFIX among the prior art, keep the swivelling joint relation all the time between ISOFIX and the base, when the child car seat is installed with the car seat and is accomplished, during normal use, this kind of swivelling joint relation also can not be injectd, when having caused to take place to strike or hard braking, the child car seat takes place great displacement, has increased the impact risk to children's head.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, an object of the present invention is to provide an ISOFIX connecting mechanism for a child car seat and a child car seat.

In order to achieve the above purpose, the utility model discloses a technical scheme is: an ISOFIX connecting mechanism of a child car seat comprises a main frame and an ISOFIX which is connected with the main frame and is provided with a connector used for being connected with a car seat. The main frame is provided with a slide rail group, the ISOFIX is provided with a shaft assembly which is matched and connected with the slide rail group, the slide rail group comprises two slide rails which are arranged up and down and have the same length extension direction, the shaft assembly comprises two shafts which are respectively matched and connected with the two slide rails, each slide rail is provided with a connected end part and an extension part, the end parts of the two slide rails form a rotary guide structure which provides rotary guide for the two shafts, the extension parts of the two slide rails form a sliding guide structure which only provides sliding guide for the two shafts,

the ISOFIX connecting mechanism has a first working state and a second working state, when the ISOFIX connecting mechanism is in the first working state, the two shafts are respectively located at the end parts of the slide rail, and when the ISOFIX connecting mechanism is in the second working state, the two shafts are respectively located at the extending parts of the slide rail.

Further, at least one of the ends has a non-return structure capable of preventing movement of the shaft from that end to the corresponding extension.

Furthermore, the two shafts are a first shaft and a second shaft, the two slide rails are a first slide rail and a second slide rail, the first slide rail comprises a first end part which is in a round hole shape and is used for the first shaft to pivot around the shaft axis of the first shaft, and a first extending part which extends forwards from the first end part, and the second slide rail comprises a second end part which is used for the second shaft to rotate around the shaft axis of the first shaft, and a second extending part which extends forwards from the second end part.

Furthermore, at least one limiting surface is arranged on the side wall of at least one shaft, the limiting surface is matched with the corresponding extending part to limit the shaft to rotate in the corresponding extending part, and the distance between the limiting surface and the shaft axis of the shaft is smaller than the radius of the shaft.

Further, the width of the first extension is smaller than the diameter of the first end.

Furthermore, the second end portion is arc-shaped, and the circle center of the arc is the circle center of the first end portion.

Further, the first slide rail is arranged above the second slide rail.

Further, the joints are provided with two cross rods which are respectively arranged on the left side and the right side of the child car seat, the cross rods are fixedly connected between the two joints, connecting rods are fixedly arranged on the cross rods, and the shaft assemblies are connected with the cross rods through the connecting rods.

Further, the ISOFIX connection mechanism further comprises a locking lever rotatably connected to one of the two shafts, and a locking member connected to the base of the child car seat and connected to the locking lever so as to be able to be locked and unlocked with respect thereto.

The utility model also provides another kind of technical scheme: the utility model provides a children's car seat, includes the base, connects the seat that supplies children to take on the base, the connecting device who is connected base and car seat, connecting device include the above ISOFIX connection structure, body frame and base fixed connection.

Since the technical scheme is used, the utility model discloses ISOFIX coupling mechanism and children's car seat of children's car seat, when children's car seat and car seat installed, ISOFIX can rotate to the installation of being convenient for, when the back normal use is accomplished in the installation, ISOFIX coupling mechanism is in second operating condition, ISOFIX then can not rotate, children's car seat is fixed motionless when receiving the striking, and no longer to leaning forward, has reduced children's head displacement when receiving the striking.

Drawings

Fig. 1 is a schematic structural diagram of an ISOFIX connection device in a first working state of the present invention, wherein a second shaft is at a position a shown in fig. 5;

fig. 2 is a schematic structural diagram of the ISOFIX connecting device in the first working state of the present invention, in which the second shaft is at the position b shown in fig. 5, and the ISOFIX is rotated clockwise to the limit position;

fig. 3 is a schematic structural diagram of the ISOFIX connecting device in the first working state of the present invention, in which the second shaft is at the position c shown in fig. 5, and the ISOFIX rotates counterclockwise to the limit position;

fig. 4 is a schematic structural diagram of the ISOFIX connecting device in the second working state according to the present invention;

FIG. 5 is a schematic structural view of the main frame and the second shaft at different positions;

fig. 6 is a schematic perspective view of an ISOFIX connection device of the present invention;

fig. 7 is a schematic diagram of a three-dimensional structure of the intermediate ISOFIX of the present invention.

The reference numbers in the figures are:

1. a main frame; 11. a first slide rail; 111. a first end portion; 112. a first extension portion; 12. a second slide rail; 121. a second end portion; 122. a second extension portion;

2. ISOFIX; 20. a joint; 21. a first shaft; 210. a limiting surface; 22. a second shaft; 23. a cross bar; 24. a connecting rod;

3. a locking lever;

4. a locking member;

5. a base.

Detailed Description

The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables those skilled in the art to more readily understand the advantages and features of the invention.

As can be seen from the schematic structural diagrams of fig. 1 to 7, the ISOFIX connecting mechanism of the child car seat in the embodiment comprises a main frame 1 connected to a base 5 of the child car seat, and an ISOFIX2 connected with the main frame 1 and having a joint 20 for connecting with a car seat. The main frame 1 is provided with a slide rail group, and an axle assembly matched and connected with the slide rail group is arranged on the ISOFIX 2.

Slide rail group arranges the setting and two slide rails that length extending direction is the same from top to bottom, the axle subassembly includes two axles that cooperate to be connected with two slide rails respectively, every slide rail has tip and the extension that is connected, the tip of two slide rails constitutes the rotation guide structure who provides rotation guide to two axles, through two axles and rotation guide structure cooperation and relative rotation between ISOFIX2 and the body frame 1, the extension of two slide rails constitutes the slide guide structure who only provides slide guide to two axles, through two axles and slide guide structure cooperation and relative slip between ISOFIX2 and the body frame 1. The ISOFIX connecting mechanism has a first working state and a second working state, when the ISOFIX connecting mechanism is in the first working state, the two shafts are respectively located at the end parts of the slide rail, and when the ISOFIX connecting mechanism is in the second working state, the two shafts are respectively located at the extending parts of the slide rail.

The two shafts are a first shaft 21 and a second shaft 22. The two slide rails are a first slide rail 11 and a second slide rail 12, the first slide rail 11 and the second slide rail 12 in this embodiment are grooves formed in the main frame 1, and the first slide rail 11 is disposed above the second slide rail 12.

The first slide rail 11 includes a first end portion 111 and a first extending portion 112, which are communicated with each other, the first end portion 111 is provided for the first shaft 21 to pivot therein around its axis, and the first end portion 111 is in a circular hole shape, and the first extending portion 112 extends forward from the first end portion 111.

The second slide rail 12 includes a second end portion 121 and a second extending portion 122, which are connected to each other, the second end portion 121 is used for the second shaft 22 to rotate therein around the axis of the first shaft 21, the second end portion 121 is arc-shaped, the center of the arc is the center of the first end portion 111, and the second extending portion 122 extends forward from the second end portion 121 and is parallel to the first extending portion 111. Preferably, the second extension 122 extends forward from the midpoint of the arc, thereby enabling the ISIFIX 2 to rotate in both clockwise and counterclockwise directions. It should be noted that in this embodiment, since the range of the rotation angle of ISIFIX 2 is small, the arc length of the second end portion 121 is also short, and is limited by the manufacturing process, so the arc feature of the second end portion 121 is not obvious in the drawings.

When the first shaft 21 and the second shaft 22 are respectively located at the first end portion 111 and the second end portion 121, the ISIFIX 2 can rotate around the first shaft 21 under the guiding action of the second end portion 121; when the first shaft 21 and the second shaft 22 are respectively located in the first extension 112 and the second extension 122, the rotation of the ISIFIX 2 is limited due to the limitation of the linear first extension 112 or the linear second extension 122, and in a more preferred embodiment, at least one of the two shafts has a limiting surface on a side wall, and the rotation of the shaft is limited by the limiting surface matching with the extension of the slide rail, so as to limit the rotation of the ISIFIX 2. The first shaft 21 in this embodiment is fixedly disposed on the ISOFIX2, and the side wall of the first shaft 21 has at least one limiting surface 210, and the limiting surface 210 cooperates with the first extending portion 112 to limit the first shaft 21 from rotating in the first extending portion 112, so as to further limit the rotation of the ISOFIX 2. Specifically, the distance between the limiting surface 210 and the axial line of the first shaft 21 is smaller than the radius of the first shaft 21, that is, the limiting surface 210 is formed by the missing part of the sidewall of the first shaft 21, so that the rotation of the first shaft 21 is not affected when the first shaft 21 is connected to the first end 111. More specifically, the limiting surface 210 is a plane and parallel to the axis of the first shaft 21, and two limiting surfaces 210 are symmetrically disposed in the embodiment. Accordingly, the width of the first extending portion 112 is smaller than the diameter of the first end portion 111, specifically, the width of the first extending portion 112 is equal to the distance between the two limiting surfaces 210, and the diameter of the first end portion 111 is equal to the diameter of the first shaft 21.

The width of the second end 121 in this embodiment is equal to the diameter of the second shaft 22.

In a more preferred embodiment, at least one of the first end 111 and the second end 121 has a non-return structure capable of preventing movement of the first shaft 21 or the second shaft 22 from the end to the corresponding extension, i.e. when the shaft is in the end, the shaft cannot return from the end to the extension under the restriction of the non-return structure, and only when the shaft is rotated to a certain position, the return to the extension is possible. In this embodiment, since the width of the first extending portion 112 is smaller than the diameter of the first end portion 111, a step is formed at the joint of the two, and the step is the above-mentioned check structure. When the first shaft 21 slides into the first end 111 and rotates, the limiting surface 210 rotates along with the first shaft 21 to be away from the position of the step, the first shaft 21 is blocked by the step and cannot slide back into the first extending portion 112, and only when the first shaft 21 rotates again until the limiting surface 210 corresponds to the position of the step, the first shaft 21 can slide back into the first extending portion 112. In practical application, if the structure that the limiting surface is matched with the step is not adopted, other forms of check structures can be adopted.

As shown in fig. 6 and 7, two joints 20 are provided at the left and right sides of the seat for the child car, respectively, and the shaft assembly is provided between the two joints 20. Specifically, a cross bar 23 is fixedly connected between the two joints 20, a connecting rod 24 is fixedly arranged on the cross bar 23, the first shaft 21 and the second shaft 22 are both connected with the cross bar 23 through the connecting rod 24, and the connecting rod 24 is L-shaped. Correspondingly, the main frame 1 is provided with two main frames which are respectively arranged at the left side and the right side of the first shaft 21 and the second shaft 22.

The coupling mechanism further comprises a locking lever 3 rotatably coupled to one of the two shafts (the first shaft 21 in this embodiment), a locking member 4 coupled to the base 5 of the child car seat and coupled to the locking lever 3 so as to be able to be locked and unlocked relatively, and the sliding of the ISOFIX2 is restricted by the engagement of the locking lever 3 and the locking member 4. The locking rod 3 and the locking piece 4 in the embodiment adopt a ratchet structure, the locking rod 3 is provided with ratchets arranged along the front-back direction, the tooth ends of the ratchets are inclined forwards, and the locking piece 4 is a pawl piece which is rotationally connected to the base 5 and meshed with the ratchets.

The embodiment also provides a child car seat, which comprises a base 3, a seat (not shown in the attached drawings) connected to the base 3 for a child to sit on, and a connecting device for connecting the base 3 with the car seat. The coupling device comprises the above-described ISOFIX coupling structure, wherein the main frame 1 is fixedly connected to the base 5.

The working principle is as follows:

when the child car seat is installed, the ISOFIX2 is pulled out backwards, as shown in fig. 1, so that the first shaft 21 and the second shaft 22 are respectively arranged in the first end part 111 of the first slide rail 11 and the second end part 121 of the second slide rail 12, and the ISOFIX2 can rotate around the first shaft 21; the second shaft 22 moves from the a position shown in fig. 5 to the b position, and the ISOFIX2 rotates upward as shown in fig. 2; the second shaft 22 moves from the a position shown in fig. 5 to the c position, and the ISOFIX2 rotates downward as shown in fig. 3; ISOFIX2 is easily installed in the car seat in this position. When the installation is completed, the ISOFIX2 is rotated back to the position shown in fig. 1, the locking rod 3 and the locking member 4 are unlocked, the base 5 is pushed backward, so that the first shaft 21 and the second shaft 22 slide into the first extension 112 and the second extension 122, respectively, i.e. the ISOFIX2 slides forward relative to the base 5 and is adjusted to a proper position, and the ISOFIX2 can only slide but cannot rotate.

The utility model discloses children's car seat's ISOFIX coupling mechanism and children's car seat, when children's car seat and car seat installed, ISOFIX can rotate to the installation of being convenient for, when normal use after the installation was accomplished, ISOFIX coupling mechanism is in second operating condition, ISOFIX then can not rotate again, children's car seat is fixed motionless when receiving the striking, and to leaning forward again, has reduced children's head displacement when receiving the striking.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a children's car seat's ISOFIX coupling mechanism, including connecting body frame (1) on children's car seat's base (5), with body frame (1) are connected and have ISOFIX (2) that are used for the joint (20) that are connected with car seat, body frame (1) on have a slide rail group, ISOFIX (2) on be provided with the axle subassembly that the slide rail group cooperatees and is connected, its characterized in that: the slide rail group comprises two slide rails which are arranged up and down and have the same length extending direction, the shaft assembly comprises two shafts which are respectively matched and connected with the two slide rails, each slide rail is provided with a connected end part and an extending part, the end parts of the two slide rails form a rotary guide structure which provides rotary guide for the two shafts, the extending parts of the two slide rails form a sliding guide structure which only provides sliding guide for the two shafts,

the ISOFIX connecting mechanism has a first working state and a second working state, when the ISOFIX connecting mechanism is in the first working state, the two shafts are respectively positioned at the end parts of the slide rails, and when the ISOFIX connecting mechanism is in the second working state, the two shafts are respectively positioned at the extending parts of the slide rails.

2. An ISOFIX connection of a children's car seat according to claim 1, characterized in that: at least one of the ends has a non-return structure capable of preventing movement of the shaft from that end to the corresponding extension.

3. An ISOFIX connection of a children's car seat according to claim 1, characterized in that: the two shafts are a first shaft (21) and a second shaft (22), the two slide rails are a first slide rail (11) and a second slide rail (12), the first slide rail (11) comprises a first end part (111) which is in a round hole shape and is used for the first shaft (21) to pivot around the axis of the first shaft, and a first extending part (112) extending forwards from the first end part (111), and the second slide rail (12) comprises a second end part (121) which is used for the second shaft (22) to rotate around the axis of the first shaft (21) and a second extending part (122) extending forwards from the second end part (121).

4. An ISOFIX connection of a children's car seat according to claim 1, characterized in that: at least one limiting surface (210) is arranged on the side wall of at least one shaft, the limiting surface (210) is matched with the corresponding extending part (112) to limit the shaft to rotate in the corresponding extending part, and the distance between the limiting surface (210) and the shaft axis is smaller than the radius of the shaft.

5. An ISOFIX connection of a children's car seat according to claim 3, characterized in that: the width of the first extension part (112) is smaller than the diameter of the first end part (111).

6. An ISOFIX connection of a children's car seat according to claim 3, characterized in that: the second end part (121) is arc-shaped, and the circle center of the arc is the circle center of the first end part (111).

7. An ISOFIX connection of a children's car seat according to claim 3, characterized in that: the first sliding rail (11) is arranged above the second sliding rail (12).

8. An ISOFIX connection of a children's car seat according to claim 1, characterized in that: the child car seat is characterized in that the joints (20) are two and are respectively arranged on the left side and the right side of the child car seat, a cross rod (23) is fixedly connected between the joints (20), a connecting rod (24) is fixedly arranged on the cross rod (23), and the shaft assembly is connected with the cross rod (23) through the connecting rod (24).

9. An ISOFIX connection of a children's car seat according to claim 1, characterized in that: the ISOFIX connecting mechanism further comprises a locking rod (3) rotatably connected with one of the two shafts, and a locking piece (4) which is connected to a base (5) of the child car seat and can be connected with the locking rod (3) in a relatively locking and unlocking mode.

10. A children's car seat, includes base (5), connect supply children to take on base (5), will base (5) and car seat be connected's connecting device, its characterized in that: the attachment device comprises an ISOFIX attachment mechanism according to any of claims 1 to 9, the main frame (1) being fixedly attached to the base (5).