A child safety seat

Abstract

A child safety seat includes a base assembly, a rotating disc, an adjustable seat and seat body, a first locking mechanism, a second locking mechanism, and a linkage handle. The first locking mechanism is located between the base assembly and the rotating disc, used to lock or unlock the rotation of the rotating disc. The second locking mechanism is located between the adjustable seat and the rotating disc, enabling the sliding of the adjustable seat to be locked and unlocked. The linkage handle is linearly mounted on the adjustable seat and can simultaneously drive the two locking mechanisms through a mechanical connection structure. When the linkage handle moves along a preset direction under the action of external force, the first and second locking mechanisms simultaneously switch to the unlocked state, allowing the seat body to be simultaneously rotated and radially slidably adjusted. This simplifies the traditionally complex separate adjustment operations into a single action, greatly improving operational convenience. Furthermore, the two locking mechanisms precisely lock the rotating disc and the adjustable seat respectively, ensuring the seat's limit and support stability after adjustment. This effectively solves the problems of cumbersome adjustment and poor stability in existing child safety seats, significantly improving children's riding comfort and safety.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts and safety technology, specifically to a child safety seat. Background Technology

[0002] With the continuous growth of car ownership and increasing public awareness of child passenger safety, the use of child safety seats in vehicle travel is becoming increasingly common. Currently, the functions of child safety seats on the market are becoming increasingly diverse. Conventional child safety seats typically require horizontal rotation and relative horizontal tilt / forward / backward adjustment functions. These rotation and tilt adjustment functions have become key design features for improving child riding comfort. However, existing technologies have also revealed several problems in implementing these seating functions, affecting the user experience and safety of child safety seats.

[0003] Some child safety seats have independent rotation and tilt adjustment mechanisms, making operation cumbersome and complicated. Users need to operate both rotation and tilt separately to adjust the seat's position, which is not only time-consuming and laborious, but also more difficult in real-world scenarios such as when space is limited in a vehicle, causing significant inconvenience. This cumbersome process reduces users' willingness to use the seat adjustment functions and fails to fully utilize the seat's comfort advantages.

[0004] For example, the Chinese utility model patent with patent number 202323088961.6 (authorization announcement number 220904764U) discloses a "360-degree rotation and orientation mechanism for a child safety seat." The rotation adjustment requires first inserting the front and rear locking parts of the rotating assembly into the corresponding release spaces on both sides of the base assembly, then rotating the rotating assembly to make the locking parts fit and connect with the corresponding slots. In use, pressing the unlocking mechanism separates the fixing part from the positioning slot, rotating the seat to the appropriate angle, and then releasing the unlocking mechanism to lock the position. Fore-and-aft adjustment is achieved by sliding the seat body's connecting shaft within the rotating assembly's strip-shaped guide hole. This separate operation method is not only time-consuming and laborious, but also more difficult to operate in practical scenarios, such as when the vehicle interior space is limited, causing great inconvenience to users. This cumbersome operation process reduces users' willingness to use the seat adjustment function and fails to fully utilize the seat's comfort advantages.

[0005] Therefore, how to provide a brand-new way of adjusting seat posture, integrate the seat adjustment function, and allow the adjustment of rotation and tilt angles to be completed in one action, while making the limit and support of the seat more precise and stable after adjustment, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a child safety seat that integrates the adjustment functions of the seat, allowing the rotation and tilt angle adjustments to be completed in one action, and making the seat's limiting and support more precise and stable after adjustment.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a child safety seat, including a base assembly, a rotating disk, an adjustable seat, and a seat body. The rotating disk is rotatably mounted on the base assembly around its own axis. The adjustable seat is slidably mounted along the radial direction of the rotating disk and rotates synchronously with the rotating disk. The seat body is fixed on the adjustable seat.

[0008] The first locking mechanism is disposed between the base assembly and the rotating disk, and has a first locking state that locks the rotating disk from rotating relative to the base assembly and a first unlocking state that allows the rotating disk to rotate.

[0009] The second locking mechanism is provided between the adjusting seat and the rotating disk, and has a second locking state that locks the adjusting seat from sliding relative to the rotating disk and a second unlocking state that allows the adjusting seat to slide.

[0010] The linkage handle is linearly movable on the adjustment seat and can simultaneously drive the first locking mechanism and the second locking mechanism through a mechanical connection structure;

[0011] When the linkage handle moves along a preset direction under the action of external force, the first locking mechanism and the second locking mechanism can be switched to the first unlocking state and the second unlocking state simultaneously, so that the seat body can be adjusted by rotation and radial sliding simultaneously.

[0012] To ensure that the first locking mechanism can reliably perform the locking and unlocking functions, preferably, the first locking mechanism includes a latch, a cable, and a spring;

[0013] The latch is slidably mounted on the rotating disk and connected to the first end of the cable. The second end of the cable is connected to the linkage handle. When the linkage handle is in motion, it can drive the latch to switch from the first locked state to the first unlocked state through the cable.

[0014] The base assembly is provided with a locking groove that is adapted to the buckle, and the spring is located between the buckle and the rotating disk so that the buckle remains in the first locked state when it is inserted into the locking groove without external force.

[0015] To improve the durability and connection stability of the cable, preferably, the cable is a steel wire cable, with ball heads at both ends. A flexible sleeve is fitted around the outer periphery of the steel wire cable. The linkage handle and the buckle are respectively provided with ball head grooves that are adapted to the corresponding ball heads. The spring is fitted on the steel wire cable and its two ends abut against the buckle and the rotating disk respectively.

[0016] In order to provide the seat body with multiple stable locking positions to meet different usage needs, preferably, the base assembly is provided with two locking slots, and the two locking slots are symmetrically distributed with respect to the axis of the rotating disk. The latches are also provided in two and correspond one-to-one with the locking slots.

[0017] Each latch is inserted into the corresponding locking slot in the first locked state, and can be inserted into another locking slot after the rotating disk is rotated 180°, so that the seat body has two locking positions 180° apart.

[0018] To facilitate users in intuitively judging the working status of the first locking mechanism, preferably, the base assembly is further provided with an identification mechanism for identifying whether the first locking mechanism is in the first locking state. The identification mechanism includes a rotating component and a torsion spring, and the rotating component is rotatably mounted on the base assembly.

[0019] The rotating component has a locking recognition area and an unlocking recognition area on its surface, and the base assembly has a viewing window, through which the locking recognition area or the unlocking recognition area can be exposed one by one;

[0020] When the latch is in the first locked state, it can push the rotating component to rotate and expose the locking recognition area. When the latch is in the first unlocked state, the rotating component can rotate back to its original position under the action of the torsion spring and expose the unlocking recognition area.

[0021] In order to achieve effective locking and unlocking of the adjustment seat by the second locking mechanism and to better link with the first locking mechanism, preferably, the second locking mechanism includes a horizontally extending locking rod, which is movably mounted on the adjustment seat, and the locking rod is provided with a vertically extending first guide post, and the linkage handle is provided with an inclined guide groove adapted to the first guide post;

[0022] When the linkage handle is in the moving state, it can drive the locking rod to switch from the second locking state to the second unlocking state through the linkage between the inclined guide groove and the first guide post.

[0023] The rotating disk is also provided with a plurality of spaced-apart lock holes, and the locking rod can be inserted into one of the lock holes in the second locking state.

[0024] To enhance the stability and adjustment accuracy of the second locking mechanism, preferably, two locking rods are provided and symmetrically arranged on both sides of the adjusting seat; correspondingly, two inclined guide grooves are also provided.

[0025] The top of the rotating disk has two protruding mounting parts, the seat body is fixed on the mounting parts, and the adjustment seat is located in the gap between the two mounting parts;

[0026] Multiple lock holes are provided on the opposite sidewalls of the two mounting parts, and the lock holes are spaced apart along the moving direction of the linkage handle. The locking rod is inserted into the corresponding lock hole in the second locking state.

[0027] In order to precisely define the movement trajectory of the linkage handle and ensure the accuracy of operation, preferably, the adjustment seat is provided with a guide groove for the linkage handle to move, and two second guide posts are provided at intervals at the bottom of the guide groove. The linkage handle is also provided with two strip holes that correspond one-to-one with the second guide posts, and each strip hole extends along the movement direction of the linkage handle.

[0028] The linkage handle is slidably sleeved on the second guide post through the strip hole, and the spacing between the two second guide posts is used to limit the linear movement trajectory of the linkage handle.

[0029] To ensure the stability and limiting effect of the rotating disk installation, preferably, the base assembly includes a base and a limiting pressure ring disposed on the base. The limiting pressure ring has an inner circumferential surface adapted to the outer circumferential surface of the rotating disk. The locking groove is formed on the inner circumferential surface of the limiting pressure ring. The latch protrudes from the outer circumferential surface of the rotating disk and is inserted into the locking groove in the first locked state. The limiting pressure ring also has a limiting step surface for limiting the rotating disk from detaching outward.

[0030] To more directly observe the different states of the identification mechanism, preferably, the two opposite sides of the limiting pressure ring form two lugs exposed on the base, and the corresponding position of the base forms a mounting groove for placing the two lugs, and both lugs are provided with the viewing window.

[0031] Compared with existing technologies, the advantages of this invention are as follows: By setting a linkage handle and linearly moving it on the adjustment seat, and connecting the linkage handle to the first locking mechanism and the second locking mechanism through a mechanical connection structure, when the linkage handle moves in a preset direction under external force, it can simultaneously drive the first locking mechanism to switch to the first unlocked state that allows the rotating disc to rotate, and drive the second locking mechanism to switch to the second unlocked state that allows the adjustment seat to slide. This allows the seat body to simultaneously perform rotation and tilt angle adjustments. Users do not need to operate the rotation and tilt angle adjustments separately; they can complete all seat posture adjustments in one action. This effectively solves the problem of existing child safety seat adjustment mechanisms being independent and cumbersome to operate. In practical usage scenarios such as limited vehicle space, it greatly reduces the difficulty of operation, saves users' time and energy, and increases users' willingness to use the seat adjustment function. In addition, the first and second locking mechanisms lock the rotating disc and the adjustment seat respectively, ensuring that the seat's limit and support are more precise and stable after adjustment, thus improving the safety of children riding in the seat. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0033] Figure 2 This is a three-dimensional structural diagram of the seat body after it has been rotated 180° in this embodiment;

[0034] Figure 3 This is a schematic diagram of the decomposed state structure of this embodiment;

[0035] Figure 4 This is a schematic diagram of the structure of the rotary disk, linkage handle, first locking mechanism and second locking mechanism 6 after installation in this embodiment;

[0036] Figure 5 for Figure 4 A schematic diagram of the bottom view structure;

[0037] Figure 6 for Figure 4 A schematic diagram of the decomposed state structure;

[0038] Figure 7 This is a schematic diagram of the cooperation mechanism between the linkage handle and the first locking mechanism in this embodiment;

[0039] Figure 8 This is a schematic diagram of the cooperation mechanism between the linkage handle and the second locking mechanism in this embodiment;

[0040] Figure 9 This is a schematic diagram of the decomposed state structure of the identification mechanism in this embodiment. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] Figures 1-9 The figure shown is the preferred embodiment of the present invention. The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] The child safety seat in this embodiment mainly includes a base assembly 1, a rotating disc 2, an adjustable seat 3, a seat body 4, a first locking mechanism 5, a second locking mechanism 6, a linkage handle 7, and a recognition mechanism 8, etc.

[0044] Among them, reference Figures 1 to 3 As shown, the rotating disk 2 can rotate around its own axis on the base assembly 1, the adjusting seat 3 can slide radially along the rotating disk 2 and rotate synchronously with the rotating disk 2, and the seat body 4 is fixedly installed on the adjusting seat 3. The first locking mechanism 5 is used to lock the rotation of the rotating disk 2 relative to the base assembly 1, the second locking mechanism 6 is used to lock the sliding of the adjusting seat 3 relative to the rotating disk 2, the linkage handle 7 can simultaneously drive the first locking mechanism 5 and the second locking mechanism 6, and the identification mechanism 8 is used to identify the locking state of the first locking mechanism 5.

[0045] Base component 1: Reference Figure 3 As shown, the base assembly 1 includes a base 1c and a limiting pressure ring 1d disposed on the base 1c. The base 1c provides a supporting foundation for the entire seat, and its shape and size can be designed according to actual installation requirements. A mounting groove 1c1 is formed at a corresponding position on the base 1c for placing the lugs 1d3 of the limiting pressure ring 1d. The limiting pressure ring 1d has an inner circumferential surface 1d1 that adapts to the outer circumferential surface of the rotating disk 2. Two locking grooves 1a are formed on the inner circumferential surface 1d1, which are symmetrically distributed with respect to the axis of the rotating disk 2. The locking grooves 1a are used to cooperate with the latches 5a of the first locking mechanism 5 to lock the rotating disk 2. Two lugs 1d3 exposed on the base 1c are formed on the two opposite sides of the limiting pressure ring 1d. Each lug 1d3 is provided with a viewing window 1b for observing the status of the identification mechanism 8. In addition, a limiting step surface 1d2 is also formed on the limiting pressure ring 1d to prevent the rotating disk 2 from disengaging outward. The limiting pressure ring 1d is fixed to the base 1c by conventional installation methods (such as bolt connection, snap connection, etc.).

[0046] Rotating disk 2: Reference Figures 4 to 6 As shown, the rotating disk 2 is rotatably mounted within the limiting pressure ring 1d of the base assembly 1 around its own axis. The top of the rotating disk 2 has two protruding mounting portions 2b, and the seat body 4 is fixed to the mounting portions 2b by bolts or other fixing methods. Multiple spaced locking holes 2a are provided on the opposite sidewalls of the two mounting portions 2b, and these locking holes 2a are spaced apart along the moving direction of the linkage handle 7. The locking holes 2a are used to cooperate with the locking rod 6a of the second locking mechanism 6 to lock the adjusting seat 3.

[0047] Adjustment seat 3: Reference Figures 4 to 6 As shown, the adjusting seat 3 is slidably mounted on the rotating disk 2 along the radial direction of the rotating disk 2, and is located within the gap between the two mounting parts 2b, allowing it to rotate synchronously with the rotating disk 2. The adjusting seat 3 is provided with a guide groove 3a for the linkage handle 7 to move, and two spaced second guide posts 3a1 protrude from the bottom of the guide groove 3a. The adjusting seat 3 and the rotating disk 2 can achieve a sliding fit through a conventional sliding connection structure, or alternatively by additionally setting a slide rail or slider.

[0048] Seat body 4: Reference Figures 1 to 3 As shown, the seat body 4 is fixed to the rotating disc 2 mounting part 2b on the adjustable seat 3, providing a seating position for the child. The specific structure and design of the seat body 4 can be configured according to the conventional requirements of child safety seats, such as equipping it with a seat belt, a comfortable seat cushion, etc.

[0049] First locking mechanism 5: (Reference) Figure 6 and Figure 7 As shown, the first locking mechanism 5 is located between the base assembly 1 and the rotating disk 2, and includes a latch 5a, a cable 5b and a spring 5c.

[0050] In this embodiment, two latches 5a are provided, symmetrically and slidingly disposed on the rotating disk 2. The shape of the latches 5a is adapted to the locking groove 1a. In the first locked state, the latches 5a protrude from the outer peripheral surface of the rotating disk 2 and are inserted into the locking groove 1a, thereby locking the rotating disk 2 relative to the base assembly 1. It should be noted that each latch 5a is inserted into the corresponding locking groove 1a in the first locked state, and can be inserted into another locking groove 1a after the rotating disk 2 rotates 180°, so that the seat body 4 has two locking positions 180° apart.

[0051] The latch 5a has a ball head groove 5b3 adapted to the ball head 5b1 of the cable 5b. The cable 5b can be a steel wire cable, with ball heads 5b1 at both ends and a flexible sleeve 5b2 around its outer periphery. The first end of the cable 5b is connected to the ball head groove 5b3 of the latch 5a via the ball head 5b1, and the second end is connected to the ball head groove 5b3 on the linkage handle 7 via the ball head 5b1. When the linkage handle 7 moves, the latch 5a is pulled by the cable 5b, switching it from the first locked state to the first unlocked state. The spring 5c ​​is sleeved on the steel wire cable, with its two ends abutting against the latch 5a and the rotating disk 2, respectively. When no external force is applied, the spring 5c ​​keeps the latch 5a in the first locked state, inserted into the locking groove 1a.

[0052] Second locking mechanism 6: (Reference) Figure 6 and Figure 8As shown, the second locking mechanism 6 is located between the adjusting seat 3 and the rotating disk 2, and includes two laterally extending locking rods 6a. The locking rods 6a are symmetrically arranged on both sides of the adjusting seat 3 and are laterally movable on the adjusting seat 3. Each locking rod 6a has a vertically extending first guide post 6a1, which is adapted to the inclined guide groove 7a on the linkage handle 7. In the second locked state, the locking rod 6a is inserted into the locking hole 2a on the side wall of the mounting part 2b of the rotating disk 2, thereby locking the adjusting seat 3 relative to the rotating disk 2.

[0053] Linkage handle 7: Reference Figures 3 to 5 As shown, the linkage handle 7 is linearly movably disposed within the guide groove 3a of the adjusting seat 3. The linkage handle 7 has two strip-shaped holes 7b corresponding one-to-one with the second guide posts 3a1. Each strip-shaped hole 7b extends along the moving direction of the linkage handle 7. The linkage handle 7 is slidably fitted onto the second guide posts 3a1 through the strip-shaped holes 7b. The spacing between the two second guide posts 3a1 is used to limit the linear movement trajectory of the linkage handle 7. The linkage handle 7 also has two inclined guide grooves 7a adapted to the first guide post 6a1 of the locking rod 6a. When the linkage handle 7 moves, the locking rod 6a is driven to switch from the second locked state to the second unlocked state through the linkage cooperation between the inclined guide grooves 7a and the first guide post 6a1.

[0054] Identification Agency 8: Reference Figure 3 and Figure 9 As shown, the identification mechanism 8 is mounted on the base assembly 1 and is used to identify whether the first locking mechanism 5 is in the first locking state. It includes a rotating member 8a and a torsion spring 8b. The rotating member 8a is rotatably mounted on the base assembly 1, and its surface has a locking identification area 8a1 and an unlocking identification area 8a2. When the latch 5a is in the first locking state, it pushes the rotating member 8a to rotate, exposing the locking identification area 8a1 through the viewing window 1b. When the latch 5a is in the first unlocking state, the rotating member 8a rotates back to its original position under the action of the torsion spring 8b, exposing the unlocking identification area 8a2 through the viewing window 1b. We can also set the locking identification area 8a1 and the unlocking identification area 8a2 to different colors to provide better identification. The torsion spring 8b is mounted on the rotation shaft of the rotating member 8a, providing a force for the rotating member 8a to rotate back to its original position.

[0055] The working principle of the child safety seat in this embodiment is explained as follows.

[0056] I. Linkage Unlocking Principle: When a user needs to adjust the posture of the child safety seat, they grasp the linkage handle 7 and apply external force in a preset direction to move it. During this process, the movement of the linkage handle 7 acts on the first locking mechanism 5 and the second locking mechanism 6 through two different mechanical connection structures, achieving synchronous unlocking.

[0057] For the first locking mechanism 5, the linkage handle 7 transmits tension through the cable 5b. The ball heads 5b1 at both ends of the cable 5b are tightly engaged with the ball head slots 5b3 on the linkage handle 7 and the latch 5a, respectively, forming a reliable connection. When the linkage handle 7 moves, the ball head slots 5b3 drive the ball heads 5b1, thereby pulling the cable 5b, causing the latch 5a connected to the other end of the cable 5b to overcome the elastic force of the spring 5c ​​and be pulled out from the locking groove 1a on the inner circumferential surface 1d1 of the limiting pressure ring 1d of the base assembly 1, releasing the restriction on the rotation of the rotating disk 2 relative to the base assembly 1, and the first locking mechanism 5 switches to the first unlocking state.

[0058] For the second locking mechanism 6, the movement of the linkage handle 7 is achieved by the linkage between the inclined guide groove 7a and the first guide post 6a1 on the locking rod 6a. When the linkage handle 7 moves in a preset direction, the inclination angle of the inclined guide groove 7a causes the first guide post 6a1 to slide in the guide groove. Since the first guide post 6a1 is fixedly connected to the locking rod 6a, it drives the locking rod 6a to move laterally, causing the locking rod 6a to exit from the lock hole 2a on the side wall of the mounting part 2b of the rotating disk 2, releasing the restriction on the sliding of the adjusting seat 3 relative to the rotating disk 2, and the second locking mechanism 6 switches to the second unlocking state.

[0059] II. Posture Adjustment Principle

[0060] With both the first locking mechanism 5 and the second locking mechanism 6 in the unlocked state, the seat body 4 gains a degree of freedom of movement. Since the seat body 4 is fixed on the adjustment seat 3, and the adjustment seat 3 rotates synchronously with the rotating disk 2 and can slide radially along the rotating disk 2, the user can simultaneously adjust the seat body 4 in two dimensions.

[0061] Users can rotate the seat body 4 around the axis of the rotating disc 2 to change its orientation and meet different seating needs, such as facing forward or backward. At the same time, they can also push the seat body 4 to make the adjustable seat 3 slide radially on the rotating disc 2 to adjust the fore-aft position of the seat and simulate the adjustment of the pitch angle to adapt to the different body shapes and seating comfort needs of children.

[0062] III. Locking Principle

[0063] Once the seat body 4 is adjusted to the appropriate position, release the linkage handle 7. At this time, the first locking mechanism 5 and the second locking mechanism 6 will automatically return to the locked state under the action of the corresponding reset structure.

[0064] In the first locking mechanism 5, the spring 5c ​​deforms and stores elastic potential energy when the latch 5a is pulled. When the external force of the linkage handle 7 disappears, the spring 5c ​​releases the elastic potential energy, pushes the latch 5a to reset along the sliding direction, and makes the latch 5a re-insert into the locking groove 1a on the inner circumferential surface 1d1 of the limiting pressure ring 1d, locking the rotating disk 2 in the current position and preventing it from rotating relative to the base assembly 1. During this process, the linkage handle 7 will also retract and reset accordingly.

[0065] In the second locking mechanism 6, after the locking rod 6a disengages from the locking hole 2a, it moves laterally to reset after the linkage handle 7 is released, causing the locking rod 6a to re-insert into the corresponding locking hole 2a on the side wall of the mounting part 2b of the rotating disk 2, locking the adjusting seat 3 in the current position and preventing it from sliding relative to the rotating disk 2, thereby achieving stable locking of the seat body 4. Of course, we can also add another reset mechanism here to enhance the reset performance of the locking rod 6a.

[0066] IV. State Recognition Principle

[0067] The identification mechanism 8 is used to visually display the working status of the first locking mechanism 5. When the latch 5a is in the first locking state, that is, when it is inserted into the locking groove 1a, the latch 5a will push the rotating member 8a to rotate around its rotation axis during the insertion process. The locking identification area 8a1 on the surface of the rotating member 8a gradually moves to the position of the viewing window 1b as the rotating member 8a rotates, and is exposed outward through the viewing window 1b. At this time, the user can see the locking identification area 8a1 by observing the viewing window 1b, thereby confirming that the first locking mechanism 5 is in the locking state and the seat has been reliably locked.

[0068] When the first locking mechanism 5 is in the first unlocked state, that is, when the latch 5a is pulled out from the lock groove 1a, the rotating member 8a is no longer pushed by the latch 5a. At this time, the torsion spring 8b installed on the rotating shaft of the rotating member 8a plays a role. The elastic potential energy stored in the torsion spring 8b drives the rotating member 8a to rotate back to its original position, so that the unlock recognition area 8a2 moves to the position of the viewing window 1b and is exposed. The user can see the unlock recognition area 8a2 through the viewing window 1b and know that the first locking mechanism 5 is in the unlocked state and the seat is in the adjustable state.

[0069] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A child safety seat, comprising a base assembly (1), a rotating disc (2), an adjustable seat (3), and a seat body (4), wherein the rotating disc (2) is rotatably mounted on the base assembly (1) about its own axis, the adjustable seat (3) is slidably mounted along the radial direction of the rotating disc (2) and rotates synchronously with the rotating disc (2), and the seat body (4) is fixed on the adjustable seat (3), characterized in that: Also includes The first locking mechanism (5) is located between the base assembly (1) and the rotating disk (2), and has a first locking state that locks the rotating disk (2) from rotating relative to the base assembly (1) and a first unlocking state that allows the rotating disk (2) to rotate. The second locking mechanism (6) is located between the adjusting seat (3) and the rotating disk (2), and has a second locking state that locks the adjusting seat (3) from sliding relative to the rotating disk (2) and a second unlocking state that allows the adjusting seat (3) to slide. The linkage handle (7) is linearly mounted on the adjustment seat (3) and can simultaneously drive the first locking mechanism (5) and the second locking mechanism (6) through a mechanical connection structure; When the linkage handle (7) moves along a preset direction under the action of external force, the first locking mechanism (5) and the second locking mechanism (6) can be switched to the first unlocking state and the second unlocking state simultaneously, so that the seat body (4) can be adjusted by rotation and radial sliding simultaneously.

2. The child safety seat according to claim 1, characterized in that: The first locking mechanism (5) includes a latch (5a), a cable (5b), and a spring (5c); The latch (5a) is slidably disposed on the rotating disk (2) and connected to the first end of the cable (5b). The second end of the cable (5b) is connected to the linkage handle (7). When the linkage handle (7) is in a moving state, it can drive the latch (5a) to switch from the first locked state to the first unlocked state through the cable (5b). The base assembly (1) is provided with a locking groove (1a) adapted to the buckle (5a), and the spring (5c) is provided between the buckle (5a) and the rotating disk (2) so that the buckle (5a) is kept in the first locked state of being inserted into the locking groove (1a) when no external force is applied.

3. The child safety seat according to claim 2, characterized in that: The cable (5b) is a steel wire cable, and both ends of the steel wire cable are provided with ball heads (5b1). A flexible sleeve (5b2) is provided around the outer periphery of the steel wire cable. The linkage handle (7) and the buckle (5a) are respectively provided with ball head slots (5b3) adapted to the corresponding ball heads (5b1). The spring (5c) is sleeved on the steel wire cable and its two ends abut against the buckle (5a) and the rotating disk (2) respectively.

4. The child safety seat according to claim 2, characterized in that: The base assembly (1) is provided with two locking slots (1a), and the two locking slots (1a) are symmetrically distributed with respect to the axis of the rotating disk (2). The latch (5a) also has two and corresponds one-to-one with the locking slots (1a). Each latch (5a) is inserted into the corresponding locking slot (1a) in the first locked state, and can be inserted into another locking slot (1a) after the rotating disk (2) is rotated 180°, so that the seat body (4) has two locking positions separated by 180°.

5. The child safety seat according to claim 2, characterized in that: The base assembly (1) is also provided with an identification mechanism (8) for identifying whether the first locking mechanism (5) is in the first locking state. The identification mechanism (8) includes a rotating member (8a) and a torsion spring (8b). The rotating member (8a) is rotatably mounted on the base assembly (1). The rotating part (8a) has a locking recognition area (8a1) and an unlocking recognition area (8a2) on its surface. The base assembly (1) has a viewing window (1b) on its surface. The locking recognition area (8a1) or the unlocking recognition area (8a2) can be exposed one by one through the viewing window (1b). When the latch (5a) is in the first locked state, it can push the rotating member (8a) to rotate and expose the locking recognition area (8a1). When the latch (5a) is in the first unlocked state, the rotating member (8a) can rotate back to its original position under the action of the torsion spring (8b) and expose the unlocking recognition area (8a2).

6. The child safety seat according to any one of claims 1 to 5, characterized in that: The second locking mechanism (6) includes a horizontally extending locking rod (6a), which is movably mounted on the adjusting seat (3). The locking rod (6a) is provided with a vertically extending first guide post (6a1), and the linkage handle (7) is provided with an inclined guide groove (7a) adapted to the first guide post (6a1). The linkage handle (7) in the moving state can drive the locking rod (6a) to switch from the second locking state to the second unlocking state through the linkage between the inclined guide groove (7a) and the first guide post (6a1); The rotating disk (2) is also provided with a plurality of spaced-apart lock holes (2a), and the locking rod (6a) can be inserted into one of the lock holes (2a) in the second locking state.

7. The child safety seat according to claim 6, characterized in that: Two locking rods (6a) are provided and symmetrically arranged on both sides of the adjusting seat (3). Correspondingly, two inclined guide grooves (7a) are also provided. The top of the rotating disk (2) has two protruding mounting portions (2b), the seat body (4) is fixed on the mounting portions (2b), and the adjustment seat (3) is located in the gap between the two mounting portions (2b); The two mounting parts (2b) are provided with a plurality of lock holes (2a) on their opposite sidewalls, and each lock hole (2a) is spaced apart along the moving direction of the linkage handle (7). The locking rod (6a) is inserted into the corresponding lock hole (2a) in the second locking state.

8. The child safety seat according to claim 1, characterized in that: The adjusting seat (3) is provided with a guide groove (3a) for the linkage handle (7) to move. Two second guide posts (3a1) are provided at intervals at the bottom of the guide groove (3a). The linkage handle (7) is also provided with two strip holes (7b) that correspond one-to-one with the second guide posts (3a1). Each strip hole (7b) extends along the moving direction of the linkage handle (7). The linkage handle (7) is slidably sleeved on the second guide post (3a1) through the strip hole (7b), and the spacing between the two second guide posts (3a1) is used to limit the linear movement trajectory of the linkage handle (7).

9. The child safety seat according to claim 5, characterized in that: The base assembly (1) includes a base (1c) and a limiting pressure ring (1d) disposed on the base (1c). The limiting pressure ring (1d) has an inner peripheral surface (1d1) adapted to the outer peripheral surface of the rotating disk (2). The locking groove (1a) is formed on the inner peripheral surface (1d1) of the limiting pressure ring (1d). The latch (5a) protrudes from the outer peripheral surface of the rotating disk (2) and is inserted into the locking groove (1a) in the first locked state. The limiting pressure ring (1d) also has a limiting step surface (1d2) for limiting the rotating disk (2) from disengaging outward.

10. The child safety seat according to claim 9, characterized in that: The limiting pressure ring (1d) has two opposite sides forming two lugs (1d3) exposed on the base (1c). The base (1c) has a mounting groove (1c1) at the corresponding position for placing the two lugs (1d3). Both lugs (1d3) are provided with the viewing window (1b).

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