A foldable child safety seat

Abstract

This invention provides a foldable child safety seat, comprising a base, a backrest assembly, and side wing assemblies. The backrest assembly is foldably connected to both the base and the side wing assemblies. When needed, the backrest assembly unfolds relative to the base, and the side wing assemblies unfold relative to the backrest assembly to provide side impact protection, allowing the seat to function normally as a child safety seat. When folding away, the side wing assemblies and the backrest assembly fold together, and the backrest assembly and the base fold together, making the seat more compact and easy to store in a vehicle trunk or at home, while also being easy to carry. This invention allows the seat to be easily switched between use and storage as needed without taking up too much space, which is very convenient for families and family trips. It not only helps improve child safety in the car but also provides greater portability and flexibility.

Description

Technical Field

[0001] This invention relates to the field of automotive safety products technology, and more specifically, to a foldable child safety seat. Background Technology

[0002] Some child safety seats on the market are designed to be foldable for easy storage and portability. These foldable child safety seats typically use a foldable main structure, allowing users to fold the seat into a smaller shape for storage and transport in the vehicle trunk or at home. Child safety seats generally have side wings on the sides of the headrest to provide side impact protection, but the side wings of existing child safety seats remain fixed and cannot be folded, which may result in the overall structure still occupying a large volume when folded. Summary of the Invention

[0003] To address at least one of the aforementioned problems, the present invention provides a foldable child safety seat, comprising a base, a backrest assembly, and side wing assemblies, wherein the backrest assembly is foldably connected to the base and the side wing assemblies respectively; when in use, the backrest assembly unfolds relative to the base, and the side wing assemblies unfold relative to the backrest assembly; when folded away, the side wing assemblies are folded to the backrest assembly, and the backrest assembly is folded to the base.

[0004] Optionally, a third positioning pin is connected to the lower end of the chair back assembly, a seventh reset member is installed between the third positioning pin and the chair back assembly, and the base is provided with a positioning hole groove suitable for cooperating with the third positioning pin.

[0005] Optionally, the chair back assembly includes a chair back body, a chair back extension plate, and a gas spring. The chair back body and the chair back extension plate are movably connected to each other. One end of the gas spring is connected to the chair back body. The gas spring includes a self-locking switch for controlling the extension or retraction of the gas spring. When the self-locking switch is subjected to external pressure, the gas spring extends to push the chair back body relative to the chair back extension plate upward, thereby increasing the chair back height. When the self-locking switch is subjected to external pressure and the chair back body is subjected to external pressure, the gas spring retracts to move the chair back body relative to the chair back extension plate downward, thereby decreasing the chair back height. When the external pressure on the self-locking switch is removed, the gas spring stops moving, thus completing the adjustment of the chair back height.

[0006] Optionally, the gas spring further includes a piston cylinder and a piston rod that are slidably connected to each other, the piston rod being connected to the chair back body; the chair back body also includes a headrest integrally formed with the chair back body.

[0007] Optionally, the chair back body includes a front cover and a back cover connected to each other, the chair back extension plate includes a front cover and a back cover connected to each other, the gas spring is disposed between the front cover and the back cover, and the chair back extension plate is disposed between the front cover and the back cover.

[0008] Optionally, it also includes a height adjustment button for pressing the self-locking switch, the height adjustment button being connected to the chair back body; the chair back body having a mounting cavity for mounting the height adjustment button; a third reset member being provided between the height adjustment button and the mounting cavity; the height adjustment button having a limiting member, the chair back body having a third limiting platform adapted to cooperate with the limiting member, and when the limiting member abuts against the third limiting platform, the height adjustment button disengages from the self-locking switch; the height adjustment button is located at the top of the chair back body.

[0009] Optionally, the side wing assembly includes a rotating arm and a side wing flap assembly. One end of the rotating arm is adapted to be movably connected to the backrest assembly and the other end is connected to the side wing flap assembly. The rotating arm moves relative to the backrest assembly to drive the side wing flap assembly to move, so that the side wing flap assembly can be placed on the left or right side of the headrest.

[0010] Optionally, one end of the rotating arm is hinged to the backrest assembly, and the other end of the rotating arm is hinged to the side wing flap assembly.

[0011] Optionally, a turntable assembly is further connected between the rotating arm and the backrest assembly. The turntable assembly includes a turntable base and a turntable that are rotatably connected to each other. The turntable base is connected to the backrest assembly, and the turntable is connected to the rotating arm. A first positioning pin is provided between the turntable base and the turntable. The turntable base has a plurality of spaced positioning grooves on its circumference, and one of the positioning grooves cooperates with the first positioning pin. A first reset member is provided between the first positioning pin and the turntable. The two ends of the first reset member are respectively connected to the first positioning pin and the turntable. The turntable has a first limiting platform and a second limiting platform, and the turntable base has a limiting part adapted to abut against the first limiting platform or the second limiting platform.

[0012] Optionally, the side flap assembly includes a flip cover and a first flap and a second flap hinged to the flip cover, the flip cover being hinged to the rotating arm; the rotating arm is equipped with a second positioning pin and a second reset member, the two ends of the second reset member being connected to the second positioning pin and the rotating arm respectively; the flip cover has a first positioning hole and a second positioning hole, one of the first positioning hole and the second positioning hole cooperating with the second positioning pin; the first flap has a first pin and a second pin spaced apart from each other, the second flap has a third pin and a fourth pin spaced apart from each other, and the flip cover has a third pin and a fourth pin spaced apart from each other. The cover plate has a first open shaft hole and a second open shaft hole. The first pin and the third pin are hinged to the first open shaft hole, and the second pin and the fourth pin are hinged to the second open shaft hole. The flip cover plate is also connected to a reset pressure plate. The first flip plate has a first mounting groove, and the second flip plate has a second mounting groove. The two ends of the reset pressure plate are respectively installed in the first mounting groove and the second mounting groove. The first flip plate also has a first limiting hole, and the second flip plate also has a second limiting hole. The flip cover plate has a first limiting block adapted to cooperate with the first limiting hole and a second limiting block adapted to cooperate with the second limiting hole.

[0013] Optionally, the base is also movably connected to a foot pedal telescopic assembly, the foot pedal telescopic assembly including a foot pedal assembly, and the base is provided with a receiving cavity suitable for placing the foot pedal assembly; the foot pedal assembly has a retracted state and an extended state, when in the retracted state the foot pedal assembly is placed in the receiving cavity, and when in the extended state a portion of the foot pedal assembly extends out of the receiving cavity.

[0014] Optionally, the foot pedal assembly is connected to an unlocking component, which is used to unlock or lock the relative position between the foot pedal assembly and the base; the foot pedal assembly includes a foot pedal body and a foot pedal sleeve slidably fitted onto the foot pedal body, the foot pedal sleeve being slidably connected to the receiving cavity; the unlocking component includes an adjusting handle and an adjusting pin, the adjusting handle having an inclined groove that slidably engages with the adjusting pin, the adjusting handle being movably connected to the foot pedal body; the foot pedal body having a first through hole suitable for the adjusting pin to pass through, the foot pedal sleeve having multiple second through holes suitable for the adjusting pin to pass through, and the sidewall of the receiving cavity having multiple mounting holes suitable for engaging with the adjusting pin, wherein when the adjusting handle moves relative to the foot pedal body, it causes the adjusting pin to disengage from and engage with the mounting holes or to disengage from and engage with the second through holes.

[0015] Optionally, there are two adjusting pins and two inclined slots, and the adjusting pins and inclined slots are arranged in a one-to-one correspondence; a limiting slider is also provided between the foot pedal body and the adjusting handle, and a fourth reset member is provided between the limiting slider and the adjusting handle; the foot pedal body is provided with a limiting protrusion suitable for cooperating with the limiting slider; when the adjusting handle is pulled forward and the limiting slider abuts against the limiting protrusion, the adjusting pin disengages from the mounting hole and engages with the second through hole, thus unlocking the position between the foot pedal sleeve and the receiving cavity; when the adjusting handle is pulled forward further, causing the limiting slider to be forced downward and move forward past the limiting protrusion, the adjusting pin disengages from both the mounting hole and the second through hole, thus unlocking the position between the foot pedal sleeve and the foot pedal body.

[0016] Optionally, a fifth reset member is provided between the adjusting handle and the foot pedal body, and the two ends of the fifth reset member are respectively connected to the adjusting handle and the foot pedal body; a limit pin is movably installed on the base, and a sixth reset member is installed between the limit pin and the base; the rear end of the foot pedal sleeve is provided with a third positioning hole suitable for cooperating with the limit pin; the foot pedal body is provided with an opening for a hand to be inserted, and the adjusting handle is provided with a handle portion for a hand to be placed, the handle portion being located inside the opening.

[0017] Compared to existing technologies, the foldable child safety seat of this invention allows the user to unfold the backrest assembly relative to the base when the child safety seat is needed. Simultaneously, the side wing assemblies can also unfold to provide side impact protection, allowing the seat to function normally and provide a child safety seat. When the seat needs to be stored or carried, the side wing assemblies and backrest assembly fold together, as well as the backrest assembly and base fold together, making the seat more compact and easier to fit in a vehicle trunk or store at home, while also being convenient to carry. The seat can be easily switched between use and storage as needed without worrying about taking up too much space, which is very convenient for families and family trips. It not only helps improve children's safety in the car but also provides greater portability and flexibility. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the second section of the footrest assembly extended and the side wing assembly and backrest assembly in an unfolded state.

[0019] Figure 2 This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the first section of the footrest assembly extended and the side wing assembly and backrest assembly in an unfolded state.

[0020] Figure 3This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the footrest extension assembly in its initial retracted state and the side wing assembly and backrest assembly in their extended state.

[0021] Figure 4 This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the footrest extension assembly in its initial retracted state, the backrest assembly in its extended state, and the side wing assembly rotated to the top.

[0022] Figure 5 This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the footrest extension assembly in the initial retracted state, the backrest assembly in the unfolded state, and the side wing assembly in the folded state.

[0023] Figure 6 This is a structural diagram of a child safety seat according to an embodiment of the present invention, with the footrest extension assembly in its initial stowed state and the backrest assembly and side wing assembly both in a folded state.

[0024] Figure 7 This is an exploded view of the chair back assembly according to an embodiment of the present invention;

[0025] Figure 8 This is a structural diagram of the chair back assembly according to an embodiment of the present invention;

[0026] Figure 9 For along Figure 8 Sectional view of line AA in the middle;

[0027] Figure 10 For along Figure 8 Sectional view of the middle BB line;

[0028] Figure 11 This is a structural diagram of the chair back assembly according to an embodiment of the present invention when the height is increased;

[0029] Figure 12 This is an exploded view of the side wing assembly according to an embodiment of the present invention;

[0030] Figure 13 This is a partial structure of the side wing assembly in an embodiment of the present invention when the flip cover is deployed relative to the rotating arm. Figure 1 ;

[0031] Figure 14 For along Figure 13 A cross-sectional view of the CC line;

[0032] Figure 15 This is a partial structural diagram of the side wing assembly in an embodiment of the present invention when the flip cover is folded relative to the rotating arm;

[0033] Figure 16 For along Figure 15 Sectional view of the DD line;

[0034] Figure 17 This is a partial structure of the side wing assembly in an embodiment of the present invention when the flip cover is deployed relative to the rotating arm. Figure 2 ;

[0035] Figure 18 For along Figure 17 Sectional view of the middle EE line;

[0036] Figure 19 This is an exploded view of the base and foot pedal telescopic assembly according to an embodiment of the present invention.

[0037] Figure 20 This is a cross-sectional view of the base and foot pedal telescopic assembly according to an embodiment of the present invention when the first section of the foot pedal assembly is extended. Figure 1 ;

[0038] Figure 21 for Figure 20 Enlarged view of section F in the middle;

[0039] Figure 22 This is a cross-sectional view of the base and foot pedal telescopic assembly according to an embodiment of the present invention when the first section of the foot pedal assembly is extended. Figure 2 ;

[0040] Figure 23 for Figure 22 Enlarged view of section G in the middle.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Base; 11. Receiving cavity; 111. Mounting hole; 2. Backrest assembly; 21. Backrest body; 211. Front cover of backrest; 212. Back cover of backrest; 213. Headrest; 214. Mounting cavity; 215. Third limiting platform; 22. Backrest extension plate; 221. Front cover of extension plate; 222. Back cover of extension plate; 23. Gas spring; 231. Self-locking switch; 232. Piston cylinder; 233. Piston rod; 24. Height adjustment button; 241. Limiting component; 25. Third reset component; 2 6. Third positioning pin; 27. Seventh reset component; 3. Side wing assembly; 31. Rotating arm; 32. Side wing flap assembly; 321. Flip cover plate; 3211. First positioning hole; 3212. Second positioning hole; 3213. First open shaft hole; 3214. Second open shaft hole; 3215. First limiting block; 3216. Second limiting block; 322. First flap; 3221. First pin; 3222. Second pin; 3223. First mounting groove; 3224. First limiting hole 323. Second flap; 3231. Third pin; 3232. Fourth pin; 3233. Second mounting groove; 3234. Second limiting hole; 324. Second positioning pin; 325. Second reset component; 326. Reset pressure plate; 33. Turntable assembly; 331. Turntable base; 3311. Positioning groove; 3312. Limiting part; 332. Rotary disk; 3321. First limiting platform; 3322. Second limiting platform; 333. First positioning pin; 334. First reset component; 4. 42. Foot pedal telescopic assembly; 421. Foot pedal assembly; 4211. Foot pedal body; 4211. First through hole; 4212. Limiting protrusion; 4213. Opening compartment; 422. Foot pedal sleeve; 4221. Second through hole; 4222. Third positioning hole; 43. Unlocking assembly; 431. Adjusting handle; 4311. Inclined groove; 4312. Handle part; 432. Adjusting pin; 44. Limiting slider; 45. Fourth reset component; 46. Fifth reset component; 47. Limiting pin; 48. Sixth reset component. Detailed Implementation

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. The accompanying drawings of embodiments of the present invention provide a coordinate system XYZ, where the positive direction of the X-axis represents the left, the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the rear, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0046] This invention provides a foldable child safety seat, combined with Figures 1 to 6 As shown, the chair includes a base 1, a backrest assembly 2, and a side wing assembly 3. The backrest assembly 2 is foldably connected to the base 1 and the side wing assembly 3 respectively. When in use, the backrest assembly 2 unfolds relative to the base 1, and the side wing assembly 3 unfolds relative to the backrest assembly 2. When stored, the side wing assembly 3 is folded to the backrest assembly 2, and the backrest assembly 2 is folded to the base 1.

[0047] The base 1 is preferably connected to the lower end of the backrest assembly 2 to ensure the structural stability of the child safety seat during use. The side wing assembly 3 is preferably connected to the upper end of the backrest assembly 2 to ensure that the side wing assembly 3 is located near the child's head when unfolded, so as to provide better side collision protection. The backrest assembly 2 is folded and connected to the base 1 and the side wing assembly 3 by hinges, forming an integrated connection structure. The parts are not easy to lose, and the structure is simple and reliable.

[0048] In this embodiment, the foldable child safety seat allows the user to unfold the backrest assembly 2 relative to the base 1 when needed. Simultaneously, the side wing assembly 3 can also unfold to provide side impact protection. At this time, the seat can be used normally, providing the function of a child safety seat. When the seat needs to be stored or carried, the side wing assembly 3 folds into the backrest assembly 2, and the backrest assembly 2 folds into the base 1, making the seat more compact and easier to fit in the vehicle trunk or store at home. It is also convenient to carry. The seat can be easily switched between use and storage as needed, and its folding is convenient without taking up too much space. This is very convenient for families and family trips, not only helping to improve children's safety in the car but also providing greater portability and flexibility.

[0049] Optionally, combined Figures 5 to 7 As shown, the lower end of the chair back assembly 2 is connected to a third positioning pin 26, and a seventh reset member 27 is installed between the third positioning pin 26 and the chair back assembly 2. The base 1 is provided with a positioning hole groove suitable for cooperating with the third positioning pin 26.

[0050] The seventh reset member 27 is preferably a compression spring, with its two ends abutting against the backrest assembly 2 and the third positioning pin 26, respectively. The positioning hole groove is located at the rear end of the base 1. When the backrest assembly 2 is unfolded relative to the base 1, the third positioning pin 26 engages with the positioning hole groove, and the third positioning pin 26 is pressed into the positioning hole groove under the elastic force of the seventh reset member 27 to stabilize the unfolded state of the seat. When the backrest assembly 2 is folded relative to the base 1, the third positioning pin 26 is compressed by the force of the seventh reset member 27, and the third positioning pin 26 retracts and disengages from the positioning hole groove, thus achieving folding.

[0051] Optionally, combined Figures 7 to 11 As shown, the chair back assembly 2 includes a chair back body 21, a chair back extension plate 22, and a gas spring 23. The chair back body 21 and the chair back extension plate 22 are movably connected to each other. One end of the gas spring 23 is connected to the chair back body 21. The gas spring 23 includes a self-locking switch 231 for controlling the extension or retraction of the gas spring 23. When the self-locking switch 231 is subjected to external pressure, the gas spring 23 extends to push the chair back body 21 upward relative to the chair back extension plate 22, thereby increasing the chair back height. When the self-locking switch 231 is subjected to external pressure and the chair back body 21 is subjected to external pressure, the gas spring 23 retracts to move the chair back body 21 downward relative to the chair back extension plate 22, thereby decreasing the chair back height. When the external pressure on the self-locking switch 231 is removed, the gas spring 23 stops moving, thus completing the adjustment of the chair back height.

[0052] The direction of the external pressure is downward; the length direction of the gas spring 23 is consistent with the height direction of the backrest, that is, consistent with the up and down direction; one end of the gas spring 23 is connected to the backrest body 21, and the other end of the gas spring 23 can be connected to the backrest extension plate 22 or to the base 1 of the child safety seat. When only the self-locking switch 231 is subjected to external pressure, the gas spring 23 extends to push the backrest body 21 to move upward relative to the backrest extension plate 22, thereby adjusting the backrest height; when the appropriate height is reached, the self-locking switch 231 is released, at which point the length of the gas spring 23 stops changing, so that the position between the backrest body 21 and the backrest extension plate 22 is fixed, thus completing the adjustment of the backrest height. When the self-locking switch 231 is subjected to external pressure and the backrest body 21 is subjected to external pressure, the gas spring 23 shortens, and the backrest body 21 moves downward relative to the backrest extension plate 22 under the action of external pressure and its own weight; one end of the gas spring 23 can be connected and fixed to the backrest body 21 through a connector, or it can be connected to the backrest body 21 in abutment; when the seat needs to be stored, the backrest height needs to be adjusted to the lowest state.

[0053] In this embodiment, a backrest body 21 and a backrest extension plate 22 are movably connected to each other, and a gas spring 23 is set between the two. The extension length of the gas spring 23 can be adjusted by pressing the self-locking switch 231 on the gas spring 23, and the height position of the backrest can be fixed by releasing the self-locking switch 231 at any height. This realizes stepless adjustment of the backrest height, so that the backrest can stop at any position within the height travel range, which is suitable for fine height adjustment and ensures that children can get the best sitting posture support during use, ensuring riding safety.

[0054] Optionally, combined Figures 7 to 11 As shown, the gas spring 23 also includes a piston cylinder 232 and a piston rod 233 that are slidably connected to each other, and the piston rod 233 is connected to the chair back body 21.

[0055] The piston cylinder 232 and the chair back extension plate 22 are fixed in position to each other. The piston rod 233 can move up and down relative to the piston cylinder 232. When the self-locking switch 231 is pressed, the chair back body 21 moves up and down relative to the chair back extension plate 22, thereby realizing the adjustment of the chair back height. The structure is simple and reliable.

[0056] If the chair back is at its lowest height in the initial state, when the self-locking switch 231 is pressed, the piston rod 233 extends, causing the chair back body 21 to rise. When the self-locking switch 231 is released, the chair back body 21 stops rising. When the chair back body 21 descends, it is only necessary to press down the chair back body 21 when the self-locking switch 231 is pressed. The stepless adjustment of the chair back height in this embodiment compensates for the shortcomings of the height limitation of traditional seat positions.

[0057] Optionally, combined Figures 7 to 11 As shown, it also includes a height adjustment button 24 for pressing the self-locking switch 231. The height adjustment button 24 is connected to the chair back body 21. The height adjustment button 24 protrudes from the chair back body 21 and has a large surface area for the user to press. Pressing the height adjustment button 24 to activate the self-locking switch 231 is more effortless and convenient.

[0058] Optionally, combined Figures 7 to 11 As shown, the chair back body 21 has a mounting cavity 214 for mounting the height adjustment button 24, making the overall structure more compact. The height adjustment button 24 is located at the top of the chair back body 21, allowing the user to press down on the self-locking switch 231 while also pressing down on the chair back body 21 to easily lower the chair back height.

[0059] Optionally, combined Figures 7 to 11As shown, a third reset member 25 is provided between the height adjustment button 24 and the mounting cavity 214. The third reset member 25 is a compression spring. The upper and lower ends of the third reset member 25 abut against the bottom of the height adjustment button 24 and the mounting cavity 214, respectively. When the external force applied to the height adjustment button 24 is removed, the height adjustment button 24 can move upward and reset under the spring force of the third reset member 25, so that the height adjustment button 24 is disengaged from the self-locking switch 231, thereby completing the locking of the chair back height.

[0060] Optionally, combined Figures 7 to 11 As shown, the height adjustment button 24 is provided with a limiting member 241, and the chair back body 21 is provided with a third limiting platform 215 suitable for cooperating with the limiting member 241. When the limiting member 241 and the third limiting platform 215 abut against each other, the height adjustment button 24 and the self-locking switch 231 disengage from each other. The limiting member 241 is a limiting screw, and the third limiting platform 215 is provided on the side wall of the mounting cavity 214.

[0061] If the chair back is initially at its lowest height, pressing the height adjustment button 24 will trigger the self-locking switch 231 of the gas spring 23, causing the piston rod 233 to extend and raise the chair back body 21. When the height adjustment button 24 is released, it will rise under the action of the third reset component 25. When the limit screw touches the third limit platform 215 of the chair back body 21, the height adjustment button 24 will stop rising and will then separate from the self-locking switch 231, stopping the chair back from rising. To lower the chair back, simply press the height adjustment button 24 and push down the chair back body 21.

[0062] Optionally, combined Figures 7 to 11 As shown, the chair back body 21 also includes a headrest 213 integrally formed with the chair back body 21. The mounting cavity 214 is located on the top of the headrest 213. During the height adjustment of the chair back body 21, the headrest 213 and the headrest 213 together achieve stepless height adjustment.

[0063] Optionally, combined Figures 7 to 11 As shown, the chair back body 21 includes a front cover 211 and a back cover 212 connected to each other, and the chair back extension plate 22 includes a front cover 221 and a back cover 222 connected to each other. The gas spring 23 is disposed between the front cover 221 and the back cover 222, and the chair back extension plate 22 is disposed between the front cover 211 and the back cover 212. The mounting cavity 214 is disposed in the front cover 211. The chair back body 21 is configured as a combination of the front cover 211 and the back cover 212, and the chair back extension plate 22 is also configured as a combination of the front cover 221 and the back cover 222 to facilitate the assembly of the overall structure.

[0064] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the side wing assembly 3 includes a rotating arm 31 and a side wing flap assembly 32. One end of the rotating arm 31 is adapted to be movably connected to the backrest assembly 2, and the other end is connected to the side wing flap assembly 32. The rotating arm 31 is movable relative to the backrest assembly 2 to drive the side wing flap assembly 32 to move, so that the side wing flap assembly 32 can be placed on the left or right side of the headrest 213.

[0065] The rotating arm 31 can be hinged, slidable, or detachable connected to the backrest assembly 2. The side wing flap assembly 32 can be fixed or movable connected to the rotating arm 31. The headrest 213 is located at the upper end of the backrest assembly 2. When the rotating arm 31 changes position relative to the backrest assembly 2, the side wing flap assembly 32 moves with the rotating arm 31, allowing the side wing flap assembly 32 to be selectively positioned to the left or right of the headrest 213. For example, when a child safety seat is installed on the left side of the car seat, the side wing flap assembly 32 can be moved to the left side of the headrest 213 to provide support and protection for the left side. Similarly, when a child safety seat is installed on the right side of the car seat, the side wing flap assembly 32 can be moved to the right side of the headrest 213 to provide support and protection for the right side.

[0066] In this embodiment, a side wing flap assembly 32 that is movable relative to the rotating arm 31 is provided, so that the side wing flap assembly 32 can be selectively installed on the left or right side of the headrest 213. This single-sided side protection provides children with more flexible activity space and a wider field of vision, and also makes the child safety seat more flexible to use. The installation position of the side wing flap assembly 32 can be adjusted according to the seating position, which not only ensures the safety of children, but also increases the communication space between children and parents. The single-sided open seat structure makes it easier for parents to see the child's status, and also reduces the weight of the product for easy carrying.

[0067] Optionally, combined Figures 3 to 5 , Figures 12 to 18As shown, one end of the rotating arm 31 is hinged to the backrest assembly 2. The rotating arm 31 can rotate freely relative to the backrest assembly 2 to allow the side wing flap assembly 32 to be selectively placed on the left or right side of the headrest 213, increasing the flexibility of the adjustable side wing structure and making it easier to adapt to different needs and seat configurations. The other end of the rotating arm 31 is folded and hinged to the side wing flap assembly 32, meaning that the side wing flap assembly 32 is connected to the rotating arm 31 through a rotating shaft. The side wing flap assembly 32 can rotate and fold or unfold relative to the rotating arm 31 around the rotating shaft to achieve the function of multi-dimensional adjustment of the side wing structure. The structure is simple and the operation of changing the side wing position is convenient.

[0068] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, a turntable assembly 33 is also connected between the rotating arm 31 and the chair back assembly 2. The turntable assembly 33 includes a turntable base 331 and a rotating disk 332 that are rotatably connected to each other. The turntable base 331 is connected to the chair back assembly 2, and the rotating disk 332 is connected to the rotating arm 31. The turntable base 331 is fixedly connected to the chair back assembly 2, and the rotating disk 332 is fixedly connected to the rotating arm 31. The turntable base 331 and the rotating disk 332 rotate relative to each other, realizing the mutual rotation of the rotating arm 31 and the chair back assembly 2, and realizing the position change between the rotating arm 31 and the chair back assembly 2. The structure is simple and reliable, and the operation is convenient.

[0069] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, a first positioning pin 333 is provided between the turntable base 331 and the rotating disk 332. The turntable base 331 has a plurality of spaced positioning grooves 3311 on its circumference. One of the positioning grooves 3311 is selected to cooperate with the first positioning pin 333. A first reset member 334 is provided between the first positioning pin 333 and the rotating disk 332. The two ends of the first reset member 334 are respectively connected to the first positioning pin 333 and the rotating disk 332.

[0070] The first reset member 334 is preferably a compression spring, and its two ends abut against the first positioning pin 333 and the rotating disk 332, respectively. There are three positioning slots 3311, which are respectively set on the left, right and top sides of the turntable base 331, so that the side wing flap assembly 32 can stop at one of the positions on the left, right and top of the headrest 213 to meet different needs. When the side wing flap assembly 32 is moved, the first positioning pin 333 reciprocates on the rotating disk 332 and the turntable base 331 through the first reset member 334. The first positioning pin 333 can be engaged or disengaged in the three positioning slots 3311 of the turntable base 331 to realize the change of position. The structure is simple and reliable.

[0071] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the rotating disk 332 is provided with a first limiting platform 3321 and a second limiting platform 3322, and the rotating disk base 331 is provided with a limiting part 3312 adapted to abut against the first limiting platform 3321 or the second limiting platform 3322. The first limiting platform 3321 and the second limiting platform 3322 are provided to protrude from the circumferential surface of the rotating disk 332. The limiting part 3312 of the rotating disk base 331 can be used to limit the rotation range of the rotating disk 332 and ensure that it can stop rotating when it reaches the left or right position of the headrest 213, so as to ensure that the side wing flap assembly 32 can be reliably stopped; the side wing flap assembly 32 can rotate within a range of -° relative to the backrest assembly 2.

[0072] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the side wing flap assembly 32 includes a flip cover 321 and a first flap 322 and a second flap 323 hinged to the flip cover 321. The flip cover 321 is hinged to the rotating arm 31. The first flap 322 and the second flap 323 can rotate independently relative to the flip cover 321 to further realize the function of multi-dimensional adjustment of the side wing to meet different needs. The rotating arm 31 has an overall L-shaped structure, which makes the structure that cooperates with the backrest assembly 2 more compact. The flip cover 321 is hinged to the rotating arm 31 through a rotating shaft. The flip cover 321 can rotate around the rotating shaft to fold or unfold relative to the rotating arm 31.

[0073] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the rotating arm 31 is equipped with a second positioning pin 324 and a second reset member 325. The two ends of the second reset member 325 are respectively connected to the second positioning pin 324 and the rotating arm 31. The flip cover plate 321 is provided with a first positioning hole 3211 and a second positioning hole 3212. One of the first positioning hole 3211 and the second positioning hole 3212 is selected to cooperate with the second positioning pin 324. The second reset member 325 is preferably a compression spring. Both ends of the second reset member 325 abut against the second positioning pin 324 and the rotating arm 31, respectively. The second reset member 325 can push the second positioning pin 324 to be installed in the first positioning hole 3211 or the second positioning hole 3212 to position the state position between the flip cover plate 321 and the rotating arm 31. When an external force is applied to the flip cover plate 321 so that it can rotate around the rotating axis, the second positioning pin 324 can be disengaged or engaged in the first positioning hole 3211 or the second positioning hole 3212 of the flip cover plate 321. The structure is simple and reliable. There are two first positioning holes 3211 and two second positioning holes 3212, which makes the positioning more stable.

[0074] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the first flap 322 is provided with a first pin 3221 and a second pin 3222 that are spaced apart from each other, the second flap 323 is provided with a third pin 3231 and a fourth pin 3232 that are spaced apart from each other, and the flip cover 321 is provided with a first open shaft hole 3213 and a second open shaft hole 3214 that are spaced apart from each other. The first pin 3221 and the third pin 3231 are hinged to the first open shaft hole 3213, and the second pin 3222 and the fourth pin 3232 are hinged to the second open shaft hole 3214.

[0075] The arrangement of the first open shaft hole 3213 and the second open shaft hole 3214 makes the assembly of the side flap assembly 32 more convenient; the staggered connection between the pin and the open shaft hole makes the overall structure more compact and stable; the coaxial arrangement of the first open shaft hole 3213 and the second open shaft hole 3214 allows the first pin 3221 and the second pin 3222 of the first flap 322 to be installed in the first open shaft hole 3213 and the second open shaft hole 3214 respectively, and the third pin 3231 and the fourth pin 3232 of the second flap 323 to be installed in the first open shaft hole 3213 and the second open shaft hole 3214 respectively, thereby enabling the first flap 322 and the second flap 323 to rotate coaxially, resulting in a compact, simple and reliable structure.

[0076] Optionally, combined Figures 3 to 5 , Figures 12 to 18 As shown, the flip cover 321 is also connected to a reset pressure plate 326. The first flip plate 322 is provided with a first mounting groove 3223, and the second flip plate 323 is provided with a second mounting groove 3233. The two ends of the reset pressure plate 326 are respectively installed in the first mounting groove 3223 and the second mounting groove 3233. Under the pressure of the reset pressure plate 326, the first flip plate 322 and the second flip plate 323 can remain in an unfolded state, that is, the overall combination presents a flat state to ensure the protection of the side. When the first flip plate 322 is subjected to external force, it can fold relative to the flip cover 321 to meet different scenario requirements. When the external force is removed, under the elastic force of the reset pressure plate 326, the first flip plate 322 can reset and unfold to protect the child's side. Similarly, when the second flip plate 323 is subjected to external force, it can fold relative to the flip cover 321 to meet different scenario requirements. When the external force is removed, under the elastic force of the reset pressure plate 326, the second flip plate 323 can reset and unfold to protect the child's side.

[0077] Optionally, combined Figures 3 to 5 , Figures 12 to 18As shown, the first flap 322 is further provided with a first limiting hole 3224, and the second flap 323 is further provided with a second limiting hole 3234. The flip cover 321 is provided with a first limiting block 3215 adapted to cooperate with the first limiting hole 3224 and a second limiting block 3216 adapted to cooperate with the second limiting hole 3234. When the first flap 322 is in the unfolded state, the first limiting hole 3224 and the first limiting block 3215 are interlocked to ensure the unfolded state of the first flap 322. When the second flap 323 is in the unfolded state, the second limiting hole 3234 and the second limiting block 3216 are interlocked to ensure the unfolded state of the second flap 323, thereby ensuring the protective function of the side flap assembly 32.

[0078] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, the base 1 is also movably connected to a foot pedal telescopic assembly 4. The foot pedal telescopic assembly 4 includes a base 1 and a foot pedal assembly 42 that are movably connected to each other. The base 1 is provided with a receiving cavity 11 suitable for placing the foot pedal assembly 42. The foot pedal assembly 42 has a retracted state and an extended state. When it is in the retracted state, the foot pedal assembly 42 is placed in the receiving cavity 11. When it is in the extended state, part of the foot pedal assembly 42 extends out of the receiving cavity 11.

[0079] The foot pedal assembly 42 can move in and out of the receiving cavity 11 of the base 1 to change its state. When adjustments are needed according to the child's height or sitting posture, the user can extend the foot pedal assembly 42 out of the base 1 to provide additional support and comfort to suit the child's needs. When the foot pedal is not needed, the user can retract the foot pedal assembly 42 back into the receiving cavity 11 of the base 1 so that it does not take up extra space or interfere with the child's sitting posture. The foot pedal assembly 42 extending out of the receiving cavity 11 means that only a part of the foot pedal assembly 42 extends out, or the foot pedal assembly 42 has been extended to its maximum extension length, leaving only the last end inside the receiving cavity 11 to maintain connection with the base 1.

[0080] In this embodiment, the foot pedal assembly 42 is designed as a retractable structure, which can improve the applicability of the child safety seat. It can be adjusted according to the child's needs to provide better support and comfort, and also helps to improve the child's safety while the car is in motion.

[0081] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, the foot pedal assembly 42 is connected to an unlocking component 43, which is used to unlock or lock the relative positions between the foot pedal assembly 42 and the base 1.

[0082] When the user needs to adjust the position of the foot pedal assembly 42, the unlocking assembly 43 is used to unlock the foot pedal assembly 42. At this time, the foot pedal assembly 42 can move freely and can extend or retract to adapt to the child's needs. Once the foot pedal assembly 42 reaches the desired position, the user can use the unlocking assembly 43 again to lock the foot pedal assembly 42 to ensure that it remains in this position and will not move accidentally. The setting of the unlocking assembly 43 provides greater flexibility, making the use of the child safety seat more convenient and safer. It can be adjusted according to the child's needs and sitting posture, while ensuring the stability of the seat during travel.

[0083] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, the pedal assembly 42 includes a pedal body 421 and a pedal sleeve 422 that is slidably sleeved outside the pedal body 421. The pedal sleeve 422 is slidably connected to the receiving cavity 11.

[0084] The foot pedal body 421 is designed for children to step on, providing support and comfort. The foot pedal sleeve 422 can be completely retracted into the receiving cavity 11, and the foot pedal body 421 can also be completely stored in the base 1. When stored, the outer surface of the foot pedal body 421 smoothly transitions with the outer surface of the base 1, resulting in a compact structure. The foot pedal sleeve 422 can slide relative to the receiving cavity 11, and the foot pedal body 421 can slide relative to the foot pedal sleeve 422. In other words, this embodiment has a two-stage telescopic structure, which maximizes the total telescopic stroke, broadens the applicability, and improves the overall compactness. The unlocking component 43 can lock the relative positions of the foot pedal body 421 and the foot pedal sleeve 422, as well as the relative positions of the foot pedal sleeve 422 and the receiving cavity 11.

[0085] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, the unlocking component 43 includes an adjusting handle 431 and an adjusting pin 432. The adjusting handle 431 has a slanted groove 4311 that slides with the adjusting pin 432. The adjusting handle 431 is movably connected to the pedal body 421. The pedal body 421 has a first through hole 4211 suitable for the adjusting pin 432 to pass through. The pedal sleeve 422 has multiple second through holes 4221 suitable for the adjusting pin 432 to pass through. The side wall of the receiving cavity 11 has multiple mounting holes 111 suitable for engaging with the adjusting pin 432. When the adjusting handle 431 moves relative to the pedal body 421, it causes the adjusting pin 432 to disengage from and engage with the mounting holes 111, or causes the adjusting pin 432 to disengage from and engage with the second through holes 4221.

[0086] The inclined groove 4311 is inclined with the front end closer to the outside and the rear end closer to the inside. There are two adjusting pins 432 and two inclined grooves 4311. The adjusting pins 432 and the inclined grooves 4311 are set one-to-one. The rear ends of the two inclined grooves 4311 are close to each other and the front ends are far apart from each other. This ensures that when the adjusting handle 431 moves forward, the adjusting pins 432 can disengage from the mounting holes 111 and the second through holes 4221 to extend the pedal. The two adjusting pins 432 make the change and maintenance of the state more stable and reliable. There are one first through hole 4211 on each side, located at the rear end of the pedal body 421. There are multiple second through holes 4221 and mounting holes 111 on both sides. The multiple second through holes 4221 are spaced apart from each other, and the multiple mounting holes 111 are also spaced apart from each other to enable the pedal to have extension lengths for each gear.

[0087] In this embodiment, when the adjusting handle 431 is moved forward a certain distance, the adjusting pin 432 disengages from the mounting hole 111 but remains engaged with the second through hole 4221. At this time, the foot pedal sleeve 422 can move back and forth relative to the base 1. When the adjusting handle 431 is pulled further forward a certain distance, the adjusting pin 432 disengages from the second through hole 4221. At this time, the foot pedal sleeve 422 can move back and forth relative to the base 1, and the foot pedal body 421 can also move back and forth relative to the foot pedal sleeve 422. This method of moving the adjusting handle 431 by pulling it to move different distances enables the foot pedal sleeve 422 to extend and retract relative to the receiving cavity 11 and the foot pedal body 421 to extend and retract relative to the foot pedal sleeve 422, thereby achieving independent extension and retraction of two strokes. This not only results in a long extension length but also a simple and reliable structure and convenient operation.

[0088] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, a limiting slider 44 is provided between the foot pedal body 421 and the adjusting handle 431, and a fourth reset member 45 is provided between the limiting slider 44 and the adjusting handle 431. The foot pedal body 421 is provided with a limiting protrusion 4212 adapted to cooperate with the limiting slider 44. When the adjusting handle 431 is pulled forward and the limiting slider 44 abuts against the limiting protrusion 4212, the adjusting pin 432 disengages from the mounting hole 111. When the adjusting pin 432 engages with the second through hole 4221, the position between the foot pedal sleeve 422 and the receiving cavity 11 is unlocked. When the adjusting handle 431 is pulled forward, the limiting slider 44 is forced to move downward and forward past the limiting protrusion 4212. At this time, the adjusting pin 432 disengages from both the mounting hole 111 and the second through hole 4221, and the position between the foot pedal sleeve 422 and the foot pedal body 421 is unlocked.

[0089] The fourth reset member 45 is preferably a compression spring, with its two ends abutting against the limiting slider 44 and the adjusting handle 431, respectively. When the adjusting handle 431 is not subjected to external force, it is in its initial position. At this time, the adjusting pin 432 is sequentially inserted into the first through hole 4211, the second through hole 4221, and the mounting hole 111, thus locking the foot pedal assembly 42 and the base 1 in their respective positions. When the user pulls the adjusting handle 431 forward and the limiting slider 44 abuts against the limiting protrusion 4212, the mechanism is unlocked. The first segment of the foot pedal assembly 42, namely the foot pedal sleeve 422, can extend and retract relative to the receiving cavity 11. When the user continues to pull the adjustment handle 431 forward, the limiting slider 44 is forced to move downward and pass over the limiting protrusion 4212, and the fourth reset member 45 is compressed. After the limiting slider passes over the limiting protrusion 4212, it moves upward under the elastic force of the fourth reset member 45, unlocking the second segment of the foot pedal assembly 42, namely the foot pedal body 421, which can extend and retract relative to the foot pedal sleeve 422.

[0090] In this embodiment, a limiting slider 44 and a limiting protrusion 4212 that cooperate with each other are provided between the foot pedal body 421 and the adjusting handle 431. This can increase the user's feel when pulling the adjusting handle 431, so as to distinguish the two telescopic structures of the foot pedal assembly 42, thereby making it convenient for the user to accurately control the length to be extended. This can provide greater flexibility and adjustability while maintaining the stability and safety of the seat.

[0091] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, a fifth reset member 46 is provided between the adjusting handle 431 and the foot pedal body 421, and the two ends of the fifth reset member 46 are respectively connected to the adjusting handle 431 and the foot pedal body 421.

[0092] The fifth reset member 46 is preferably a compression spring. When the user pulls the adjustment handle 431 forward, the fifth reset member 46 is in a compressed state. When the user removes the external force on the adjustment handle 431, the adjustment handle 431 can automatically move backward and reset under the elastic force of the fifth reset member 46, thereby driving the adjustment pin 432 to move outward and reset, so as to insert into the second through hole 4221 or into the second through hole 4221 and the mounting hole 111, thereby realizing the position locking between the foot pedal assembly 42 and the base 1.

[0093] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, a limiting pin 47 is movably installed on the base 1, and a sixth reset component 48 is installed between the limiting pin 47 and the base 1. The rear end of the foot pedal sleeve 422 is provided with a third positioning hole 4222 suitable for cooperating with the limiting pin 47.

[0094] The sixth reset member 48 is preferably a compression spring. When the pedal sleeve 422 is retracted into the receiving cavity 11, the limiting pin 47 abuts against the side of the pedal sleeve 422. At this time, the sixth reset member 48 is in a compressed state. When the pedal sleeve 422 is extended from the receiving cavity 11 and extended to its limit position, the limiting pin 47 will be engaged in the third positioning hole 4222 under the elastic force of the sixth reset member 48. This allows the pedal sleeve 422 and the receiving cavity 11 to be fixed to each other through the cooperation of the limiting pin 47 and the third positioning hole 4222. This is useful when the pedal body 421 extends to a relatively long length relative to the pedal sleeve 422, causing the adjusting pin 432 to be exposed outside the base 1 during reset and unable to lock with the mounting hole 111. The locking engagement between the positioning pin 47 and the third positioning hole 4222 prevents the second telescopic structure of the pedal assembly 42 from becoming loose when extended, ensuring the stability of the pedal. There are two limiting pins 47, which are respectively set on the left and right sides of the receiving cavity 11, making the locking structure more stable and reliable. In addition, when the pedal sleeve 422 is pulled out to its longest position relative to the receiving cavity 11, the limiting protrusion on the pedal sleeve 422 will abut against the base 1 to prevent the pedal sleeve 422 from disengaging from the base 1, ensuring the reliability of the connection between the pedal assembly 42 and the base 1. The pedal body 421 is provided with a foot pedal. When a child sits in the seat and places his / her feet on the foot pedal, the force direction of the foot pedal is the same as the extension direction of the pedal assembly 42.

[0095] Optionally, combined Figures 1 to 3 , Figures 19 to 23 As shown, the foot pedal body 421 is provided with an opening 4213 for reaching into, and the adjusting handle 431 is provided with a handle portion 4312 for placing a hand, the handle portion 4312 being located inside the opening 4213.

[0096] The opening compartment 4213 is located at the lower end of the foot pedal body 421, and the handle 4312 is located at the lower end of the adjusting handle 431 to ensure that it does not affect the placement of the child's feet. The handle 4312 is located inside the opening compartment 4213, and the user can easily place his / her hand on the handle 4312 of the adjusting handle 431, so that the user can easily operate the adjusting handle 431 to realize the extension and locking of the foot pedal assembly 42 to meet the needs and sitting posture of the child, while providing a better user experience.

[0097] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A foldable child safety seat, characterized in that, The chair includes a base (1), a backrest assembly (2), and a side wing assembly (3). The backrest assembly (2) is foldably connected to the base (1) and the side wing assembly (3) respectively. When in use, the backrest assembly (2) unfolds relative to the base (1), and the side wing assembly (3) unfolds relative to the backrest assembly (2). When stored, the side wing assembly (3) folds with the backrest assembly (2), and the backrest assembly (2) folds with the base (1). The side wing assembly (3) includes a rotating arm (31). The rotating arm (31) is adapted to be movably connected to the backrest assembly (2) and the other end is connected to the side wing flap assembly (32). The rotating arm (31) is movable relative to the backrest assembly (2) to drive the side wing flap assembly (32) to move so that the side wing flap assembly (32) can be placed on the left or right side of the headrest (213). The side wing flap assembly (32) can stay in one of the positions on the left, right and above the headrest (213) to meet different needs.

2. The foldable child safety seat according to claim 1, characterized in that, The lower end of the chair back assembly (2) is connected to a third positioning pin (26), and a seventh reset member (27) is installed between the third positioning pin (26) and the chair back assembly (2). The base (1) is provided with a positioning hole groove suitable for cooperating with the third positioning pin (26).

3. The foldable child safety seat according to claim 1, characterized in that, The chair back assembly (2) includes a chair back body (21), a chair back extension plate (22), and a gas spring (23). The chair back body (21) and the chair back extension plate (22) are movably connected to each other. One end of the gas spring (23) is connected to the chair back body (21). The gas spring (23) includes a self-locking switch (231) for controlling the extension or retraction of the gas spring (23). When the self-locking switch (231) is subjected to external pressure, the gas spring (23) extends to push the chair back body. The backrest body (21) moves upward relative to the backrest extension plate (22) to increase the backrest height; when the self-locking switch (231) is subjected to external pressure and the backrest body (21) is subjected to external pressure, the gas spring (23) shortens to make the backrest body (21) move downward relative to the backrest extension plate (22) to decrease the backrest height; when the external pressure of the self-locking switch (231) is removed, the gas spring (23) stops moving to complete the adjustment of the backrest height.

4. The foldable child safety seat according to claim 3, characterized in that, The gas spring (23) also includes a piston cylinder (232) and a piston rod (233) that are slidably connected to each other. The piston rod (233) is connected to the backrest body (21). The backrest body (21) also includes a headrest (213) integrally formed with the backrest body (21).

5. The foldable child safety seat according to claim 3, characterized in that, The chair back body (21) includes a front cover (211) and a back cover (212) connected to each other. The chair back extension plate (22) includes a front cover (221) and a back cover (222) connected to each other. The gas spring (23) is located between the front cover (221) and the back cover (222). The chair back extension plate (22) is located between the front cover (211) and the back cover (212).

6. The foldable child safety seat according to claim 3, characterized in that, It also includes a height adjustment button (24) for pressing the self-locking switch (231), the height adjustment button (24) being connected to the chair back body (21); the chair back body (21) having an installation cavity (214) for mounting the height adjustment button (24); a third reset member (25) being provided between the height adjustment button (24) and the installation cavity (214); the height adjustment button (24) having a limiting member (241), the chair back body (21) having a third limiting platform (215) suitable for cooperating with the limiting member (241), when the limiting member (241) and the third limiting platform (215) abut against each other, the height adjustment button (24) disengaging from the self-locking switch (231); the height adjustment button (24) being located at the top of the chair back body (21).

7. The foldable child safety seat according to claim 1, characterized in that, One end of the rotating arm (31) is hinged to the backrest assembly (2), and the other end of the rotating arm (31) is hinged to the side wing flap assembly (32).

8. The foldable child safety seat according to claim 1, characterized in that, A turntable assembly (33) is also connected between the rotating arm (31) and the chair back assembly (2). The turntable assembly (33) includes a turntable base (331) and a turntable (332) that are rotatably connected to each other. The turntable base (331) is connected to the chair back assembly (2), and the turntable (332) is connected to the rotating arm (31). A first positioning pin (333) is provided between the turntable base (331) and the turntable (332). The turntable base (331) has a plurality of spaced positioning grooves (3311) on its circumference. 3311) Select one to cooperate with the first positioning pin (333); a first reset member (334) is provided between the first positioning pin (333) and the rotating disk (332), and the two ends of the first reset member (334) are respectively connected to the first positioning pin (333) and the rotating disk (332); the rotating disk (332) is provided with a first limiting platform (3321) and a second limiting platform (3322), and the rotating disk base (331) is provided with a limiting part (3312) suitable for abutting against the first limiting platform (3321) or the second limiting platform (3322).

9. The foldable child safety seat according to claim 1, characterized in that, The side flap assembly (32) includes a flip cover plate (321) and a first flap plate (322) and a second flap plate (323) hinged to the flip cover plate (321). The flip cover plate (321) is hinged to the rotating arm (31). The rotating arm (31) is equipped with a second positioning pin (324) and a second reset member (325). The two ends of the second reset member (325) are respectively connected to the second positioning pin (324) and the rotating arm (31). The flip cover plate (321) is provided with a first... The first positioning hole (3211) and the second positioning hole (3212) are provided, and one of the first positioning hole (3211) and the second positioning hole (3212) is selected to cooperate with the second positioning pin (324); the first flap (322) is provided with a first pin (3221) and a second pin (3222) arranged at intervals, the second flap (323) is provided with a third pin (3231) and a fourth pin (3232) arranged at intervals, and the flip cover (321) is provided with a first open shaft hole (3211) arranged at intervals. 213) and the second open shaft hole (3214), the first pin (3221) and the third pin (3231) are hinged to the first open shaft hole (3213), the second pin (3222) and the fourth pin (3232) are hinged to the second open shaft hole (3214); the flip cover plate (321) is also connected to a reset pressure plate (326), the first flip plate (322) is provided with a first mounting groove (3223), and the second flip plate (323) is provided with a second mounting groove (3224). 33) The two ends of the reset pressure plate (326) are respectively installed in the first mounting groove (3223) and the second mounting groove (3233); the first flip plate (322) is also provided with a first limiting hole (3224), the second flip plate (323) is also provided with a second limiting hole (3234), and the flip cover plate (321) is provided with a first limiting block (3215) suitable for cooperating with the first limiting hole (3224) and a second limiting block (3216) suitable for cooperating with the second limiting hole (3234).

10. The foldable child safety seat according to any one of claims 1-9, characterized in that, The base (1) is also movably connected to a foot pedal telescopic assembly (4), which includes a foot pedal assembly (42). The base (1) is provided with a receiving cavity (11) suitable for placing the foot pedal assembly (42). The foot pedal assembly (42) has a retracted state and an extended state. When it is in the retracted state, the foot pedal assembly (42) is placed in the receiving cavity (11). When it is in the extended state, part of the foot pedal assembly (42) extends out of the receiving cavity (11).

11. The foldable child safety seat according to claim 10, characterized in that, The foot pedal assembly (42) is connected to an unlocking component (43), which is used to unlock or lock the relative position between the foot pedal assembly (42) and the base (1). The foot pedal assembly (42) includes a foot pedal body (421) and a foot pedal sleeve (422) that is slidably fitted outside the foot pedal body (421). The foot pedal sleeve (422) is slidably connected to the receiving cavity (11). The unlocking component (43) includes an adjusting handle (431) and an adjusting pin (432). The adjusting handle (431) is provided with a slanted groove (4311) that slidably engages with the adjusting pin (432). The adjusting handle (431) is connected to the foot pedal body. (421) Movable connection; the foot pedal body (421) is provided with a first through hole (4211) suitable for the adjustment pin (432) to pass through, the foot pedal sleeve (422) is provided with a plurality of second through holes (4221) suitable for the adjustment pin (432) to pass through, and the side wall of the receiving cavity (11) is provided with a plurality of mounting holes (111) suitable for cooperating with the adjustment pin (432). When the adjustment handle (431) moves relative to the foot pedal body (421), it drives the adjustment pin (432) to disengage and cooperate with the mounting hole (111) or drives the adjustment pin (432) to disengage and cooperate with the second through hole (4221).

12. The foldable child safety seat according to claim 11, characterized in that, The number of the adjusting pin (432) and the inclined groove (4311) are both two, and the adjusting pin (432) and the inclined groove (4311) are set one-to-one; a limiting slider (44) is also provided between the foot pedal body (421) and the adjusting handle (431), and a fourth reset member (45) is provided between the limiting slider (44) and the adjusting handle (431). The foot pedal body (421) is provided with a limiting protrusion (4212) suitable for cooperating with the limiting slider (44); when the adjusting handle (431) is pulled forward and the limiting slider (44) abuts against the limiting protrusion (4212), the foot pedal body (421) is provided with a limiting protrusion (4212). When the adjustment pin (432) disengages from the mounting hole (111) and engages with the second through hole (4221), the position between the foot pedal sleeve (422) and the receiving cavity (11) is unlocked. When the adjustment handle (431) is pulled forward, causing the limiting slider (44) to be forced to move downward and pass the limiting protrusion (4212), the adjustment pin (432) disengages from both the mounting hole (111) and the second through hole (4221), and the position between the foot pedal sleeve (422) and the foot pedal body (421) is unlocked.

13. The foldable child safety seat according to claim 11, characterized in that, A fifth reset member (46) is provided between the adjusting handle (431) and the foot pedal body (421), and the two ends of the fifth reset member (46) are respectively connected to the adjusting handle (431) and the foot pedal body (421); a limit pin (47) is movably installed on the base (1), and a sixth reset member (48) is installed between the limit pin (47) and the base (1); a third positioning hole (4222) suitable for cooperating with the limit pin (47) is provided at the rear end of the foot pedal sleeve (422); the foot pedal body (421) is provided with an opening compartment (4213) for the hand to be inserted, and the adjusting handle (431) is provided with a handle part (4312) for the hand to be placed, and the handle part (4312) is located in the opening compartment (4213).

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