Child safety seat

Abstract

The present invention discloses a child safety seat, which includes a base and a backrest. The base and the backrest are axially connected to each other, and a movable limiting structure is provided between the base and the backrest. When the limiting structure is in a first state, the base and the backrest are kept in a seat state. When the limiting structure is in a second state, the base can be rotated toward the backrest and moved closer. After the base and the backrest are folded, the child safety seat has a smaller volume and occupies less storage space.

Description

Technical Field

[0001] The present invention relates to the field of child seats, in particular to a child safety seat fixed on a car seat. Background Art

[0002] Child safety seats are usually fixed to car seats to ensure the safety of children when riding in the car.

[0003] The child safety seat includes a support base and a seat body. The seat body is installed on the support base and is configured to slide relative to the support base to adjust the seat body's pitch angle, or the seat body is configured to rotate relative to the support base.

[0004] According to national standards, an ISOFIX component is installed on the support base to connect with the ISOFIX interface on the car seat to fix the safety seat.

[0005] The support base and child safety seat with publication number CN109532587A include a plastic shell and two parallel ISOFIX components symmetrically mounted on the plastic shell. A crossbeam is fixedly connected between the rear end inner walls of the two ISOFIX components. The ISOFIX and the crossbeam together form a basic frame, and an upward-extending rear support component is connected to the basic frame.

[0006] The child safety seat and the rotating connection structure between the base and the chair body with the authorization announcement number CN207809123U; a fixed shaft and locking rods on both sides of the fixed shaft are fixedly provided at the bottom of the chair body, the two locking rods and the fixed shaft are roughly located in a straight line, and a linkage lock is provided on the base.

[0007] Existing child safety seats include a base and a seat body, wherein the seat body is provided with a height-adjustable headrest, the seat body can slide relative to the base to adjust the seat body's pitch angle, and the seat body can rotate on the base. Existing child safety bases are relatively large and take up a lot of space when stored. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a child safety seat with a foldable base and a foldable backrest. The folded child safety seat is small in size and occupies less space.

[0009] The technical solution provided by the present invention to solve the above-mentioned technical problems is: a child safety seat, characterized in that it includes a base and a seat back, the base and the seat back are axially connected to each other, and a movable limiting structure is provided between the base and the seat back; when the limiting structure is in a first state, the base and the seat back are maintained in a seat state, and when the limiting structure is in a second state, the base can be rotated toward the seat back and moved closer.

[0010] A further preferred solution of the present invention is that the base and the chair back are axially connected to each other via a rotating shaft.

[0011] A further preferred solution of the present invention is that when the limiting structure is in the second state, the base can rotate toward the inner side of the chair back.

[0012] A further preferred embodiment of the present invention is as follows: the limiting structure includes a limiting portion on the base and a movable limiting shaft on the chair back; when the limiting shaft falls onto the limiting portion, the base and the chair back remain in a seat state; when the limiting shaft leaves the limiting portion, the base can rotate toward the inner side of the chair back.

[0013] A further preferred solution of the present invention is that the limiting shaft is fixed on a mounting frame, and the mounting frame is movably mounted on the chair back.

[0014] A further preferred embodiment of the present invention is that the mounting frame is controlled by a flexible drawstring, and the flexible drawstring extends from the back of the chair back for easy operation.

[0015] A further preferred solution of the present invention is that a torsion spring is provided on the mounting bracket, and the torsion spring is used to keep the limiting shaft from falling onto the limiting portion. The mounting bracket rotates to overcome the elastic force of the torsion spring so that the limiting shaft is separated from the limiting portion.

[0016] A further preferred solution of the present invention is that the limiting portion is a raised portion at the rear end of the base.

[0017] A further preferred solution of the present invention is that the mounting frame includes two supporting arms with axial holes at the front ends, and the limiting shaft passes through the axial holes on the supporting arms.

[0018] A further preferred embodiment of the present invention is as follows: a mounting cavity is provided on the front side of the chair back, the mounting frame is placed in the mounting cavity, a drawstring channel connected to the mounting cavity is provided on the back side of the chair back, and the flexible drawstring is led out from the drawstring channel.

[0019] Compared with the prior art, the advantage of the present invention is that a movable limiting structure is provided between the base and the seat back; when the limiting structure is in a first state, the base and the seat back are maintained in a seat state; when the limiting structure is in a second state, the base can be rotated toward the seat back and moved closer; after the base and the seat back are folded, the child safety seat is smaller in size and takes up less space for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0021] Figure 1 A schematic diagram of a child safety seat in an unfolded state according to a preferred embodiment of the present invention Figure 1 ;

[0022] Figure 2 A schematic diagram of a child safety seat in an unfolded state according to a preferred embodiment of the present invention Figure 2 ;

[0023] Figure 3 A schematic diagram of a child safety seat in an unfolded state according to a preferred embodiment of the present invention Figure 3 ;

[0024] Figure 4 A schematic diagram of a child safety seat in a folded state according to a preferred embodiment of the present invention;

[0025] Figure 5 A partial cross-sectional view of a child safety seat according to a preferred embodiment of the present invention Figure 1 ;

[0026] Figure 6 A partial cross-sectional view of a child safety seat according to a preferred embodiment of the present invention Figure 2 ;

[0027] Figure 7 A partial cross-sectional view of a child safety seat according to a preferred embodiment of the present invention Figure 3 ;

[0028] Figure 8 A child safety seat according to a preferred embodiment of the present invention Figure 5 A partial enlarged schematic diagram;

[0029] Figure 9 A child safety seat according to a preferred embodiment of the present invention Figure 6 A partial enlarged schematic diagram;

[0030] Figure 10 A child safety seat according to a preferred embodiment of the present invention Figure 7 A partial enlarged schematic diagram;

[0031] Figure 11 A schematic diagram of a child safety seat back according to a preferred embodiment of the present invention Figure 1 ;

[0032] Figure 12 A schematic diagram of a child safety seat back according to a preferred embodiment of the present invention Figure 2 ;

[0033] Figure 13 A schematic diagram of a mounting frame for a child safety seat according to a preferred embodiment of the present invention;

[0034] Figure 14 An exploded view of a mounting frame for a child safety seat according to a preferred embodiment of the present invention;

[0035] Figure 15 The figure is a schematic diagram of a seat back pressure plate of a child safety seat according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0037] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0039] like Figure 1-4 As shown, the child safety seat includes a base 100 and a backrest 200. The backrest 200 also includes a headrest 300 that can be raised and lowered. The backrest 200 is assembled on the base 100, and the headrest 300 is assembled on the inner side of the backrest 200. ISOFIX components are installed on both sides of the rear end of the base 100 for connecting with the ISOFIX interface on the car seat to secure the child safety seat.

[0040] like Figure 1-4As shown, the base 100 and the backrest 200 are connected by a foldable connection structure, allowing the backrest 200 to be folded relative to the base 100. When the seat is not in use, the user can fold the backrest 200 to reduce space usage. Furthermore, during production and sales, or in other words, during user transportation, the size of the child safety seat is reduced. When multiple child safety seats are stacked for transportation, the number of child safety seats transported within the same transport volume is increased, reducing transportation costs while improving safety during stacking. Furthermore, while maintaining ease of installation, the convenience of transporting or storing child safety seats is enhanced for consumers.

[0041] In this embodiment, the base 100 and the chair back 200 are axially connected to each other, and a movable limiting structure is provided between the base 100 and the chair back 200; when the limiting structure is in a first state, the base 100 and the chair back 200 are maintained in a seat state, and when the limiting structure is in a second state, the base 100 can rotate toward the chair back 200 and move closer to it.

[0042] By utilizing the movable limiting structure, the connection between the base 100 and the seat back 200 in the unfolded state is solidified and protected, thereby maintaining the stability of the child safety seat and improving the safety and reliability of the child safety seat.

[0043] Combine Figure 5-10 The connection structure between the base 100 and the backrest 200 is explained. The backrest 200 is axially connected to the base 100 through a horizontal rotating shaft 6, so that the backrest 200 can be flipped relative to the base 100. When the limiting structure is in the second state, the base 100 can rotate toward the inner side of the backrest 200.

[0044] The lower end of the chair back 200 is provided with two connecting parts 1 protruding toward the base 100, and the rear end of the base 100 is provided with a mounting groove 2 with an opening facing backward that matches the connecting part 1. The connecting part 1 is placed in the mounting groove 2, and the chair back 200 is axially connected to the chair back 200 by a rotating shaft 6 that passes through the wall of the mounting groove 2 of the base 100 and the connecting part 1.

[0045] like Figure 8-10 As shown, in this embodiment, the retaining structure between the base 100 and the backrest 200 includes a retaining portion 3 on the base 100 and a movable retaining shaft 4 on the backrest 200. When the retaining structure is in a first state, the retaining shaft 4 falls into the retaining portion 3, and the base 100 and backrest 200 remain in the seat position. When the retaining structure is in a second state, the retaining shaft 4 leaves the retaining portion 3, and the base 100 can rotate inwardly of the backrest 200.

[0046] Specifically, a mounting bracket 01 for mounting the limiting shaft 4 is provided on the chair back 200 , and the mounting bracket 01 can be movably mounted on the chair back 200 , thereby realizing the movement of the limiting shaft 4 .

[0047] like Figure 11-14 As shown, the front side of the chair back 200 preferably has a mounting cavity 02, into which a mounting frame 01 is placed. Mounting frame 01 is controlled by a flexible strap 5 and can be pulled and moved. The back of the chair back 200 has a strap channel 8 connected to the mounting cavity 02. The flexible strap 5 extends from the back of the chair back 200 through the strap channel 8 for easy operation.

[0048] Furthermore, the stopper 3 is a raised portion 3 at the rear end of the base 100, extending transversely along the width of the base 100 and toward the chair back 200. When the stopper shaft 4 is located below the stopper shaft 3, its ability to move upward relative to the stopper shaft 3 is restricted, preventing the chair back 200 from tilting toward the base 100. However, when the stopper shaft 4 is released from the stopper shaft 3, the base 100 and chair back 200 are unrestricted, allowing them to freely tilt about the rotation axis 6.

[0049] like Figure 13-14 As shown, the mounting frame 01 is a U-shaped structure, which includes support arms 11 extending downward on both sides. The front end of the support arm 11 has an axial hole K. The limiting shaft 4 passes through the axial holes K on the two support arms 11, so that the limiting shaft 4 follows the mounting frame 01 to achieve displacement changes.

[0050] like Figure 8 、 15 As shown, the upper portion of mounting frame 01 is a transverse portion 12 connecting the two support arms 11. Transverse portion 12 is provided with a through-hole for the flexible drawstring 5 to pass through. Furthermore, transverse portion 12 is provided with a torsion spring 7. Meanwhile, a backrest pressure plate 03 is provided in the area corresponding to the mounting cavity 02 of the seat back 200. Backrest pressure plate 03 is located on the front side of mounting frame 01. A portion of torsion spring 7 rests against backrest pressure plate 03 to store elastic deformation energy.

[0051] When the user pulls the flexible drawstring 5, the mounting frame 01 rotates to overcome the elastic force of the torsion spring 7 so that the limiting shaft 4 is separated from the limiting portion 3. At this time, the chair back 200 and the base 100 are in a freely foldable state, and the two can be relatively folded or unfolded, with an unfolding angle of approximately 90 degrees.

[0052] When the user installs the chair back 200 and the base 100 in the unfolded state, the elasticity of the torsion spring 7 can keep the limiting shaft 4 from falling onto the limiting portion 3. When the limiting shaft 4 is pressed tightly against the lower surface of the limiting portion 3, the gap between the base 100 and the chair back 200 is eliminated.

[0053] Furthermore, it should be understood that, through this arrangement, when the safety seat is in the deployed state, the limiting shaft 4 of the mounting frame 01 is constantly pressed against the limiting portion 3 by the torsion spring 7. Therefore, when the flexible strap 5 is not pulled and the mounting frame 01 is shifting positions, there is no gap between the base 100 and the seat back 200, enhancing structural rigidity and further strengthening and stabilizing the connection mechanism. This prevents the safety seat from shaking due to gaps when used at high speeds or in rough terrain, thereby improving the safety and reliability of the safety seat.

[0054] The above describes the child safety seat provided by the present invention in detail. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art will appreciate that various improvements and modifications may be made to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. Child safety seat, characterized by The seat comprises a base and a backrest, wherein the base and the backrest are axially connected to each other, and a movable limiting structure is provided between the base and the backrest; when the limiting structure is in a first state, the base and the backrest are kept in a seat state; when the limiting structure is in a second state, the base can rotate toward the inner side of the backrest and move closer to it; The base and the chair back are axially connected to each other via a rotating shaft; The lower end of the chair back is provided with two connecting parts protruding toward the base, the rear end of the base is provided with a mounting groove with an opening facing backwards that matches the connecting parts, the connecting parts are placed in the mounting grooves, and the chair back is connected to the base via the rotating shaft, and the rotating shaft passes through the wall of the mounting groove of the base and the connecting parts; The limiting structure includes a limiting portion on the base and a movable limiting shaft on the chair back; when the limiting structure is in a first state, the limiting shaft falls into the limiting portion, and the base and the chair back remain in the seat state; when the limiting structure is in a second state, the limiting shaft leaves the limiting portion, and the base can rotate toward the inner side of the chair back; The limiting shaft is fixed on the mounting frame, and the mounting frame is movably mounted on the chair back; The mounting frame is controlled by a flexible drawstring, which extends from the back of the chair back for operation; The mounting frame is provided with a torsion spring, which is used to keep the limiting shaft from falling into the limiting portion. The mounting frame rotates to overcome the elastic force of the torsion spring so that the limiting shaft is separated from the limiting portion. The mounting frame is U-shaped and includes two arms with shaft holes at the front ends, and the limiting shaft passes through the shaft holes on the arms; The front side of the chair back is provided with a mounting cavity, the mounting frame is placed in the mounting cavity, the back side of the chair back is provided with a drawstring channel connected to the mounting cavity, and the flexible drawstring is led out from the drawstring channel; The upper part of the mounting frame is a transverse part connecting the two support arms, and the transverse part is provided with a through-hole for the flexible pull belt to pass through; the torsion spring is arranged on the transverse part; the area corresponding to the mounting cavity of the chair back is also provided with a chair back pressure plate, and the chair back pressure plate is arranged on the front side of the mounting frame, and a part of the torsion spring rests on the chair back pressure plate to store elastic deformation energy.

2. The child safety seat according to claim 1, characterized in that The limiting portion is a raised portion at the rear end of the base.

Images