Child safety seat

Abstract

A child safety seat comprises a base assembly, a rotating disc, an adjusting seat, a seat body, a first locking mechanism, a second locking mechanism and a linkage handle, and the first locking mechanism is located between the base assembly and the rotating disc and used for locking or unlocking rotation of the rotating disc; the second locking mechanism is arranged between the adjusting seat and the rotating disc to realize locking and unlocking of sliding of the adjusting seat; the linkage handle is linearly arranged on the adjusting base, and the two locking mechanisms can be driven at the same time through a mechanical connecting structure. When the linkage handle moves in the preset direction under the action of external force, the first locking mechanism and the second locking mechanism are synchronously switched to the unlocking state, so that the seat body can be subjected to rotary adjustment and radial sliding adjustment at the same time, traditional complex respective adjustment operation is simplified into one action, and operation convenience is greatly improved. And the two locking mechanisms accurately lock the rotating disc and the adjusting seat correspondingly, it is guaranteed that limiting and supporting are stable after the seat is adjusted, the problems that an existing child safety seat is tedious in adjustment and poor in stability are effectively solved, and the child riding comfort and safety are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the fields of automobile parts and safety technology, and in particular to a child safety seat. Background Art

[0002] With the continued growth in car ownership and increasing awareness of child safety in vehicles, the use of child safety seats is becoming increasingly common. Child safety seats currently on the market offer increasingly diverse functions. Conventional child safety seats typically require horizontal rotation and relatively horizontal fore-and-aft pitch adjustment. These rotation and pitch adjustment functions have become key design features for enhancing child comfort. However, existing technologies for implementing these seating functions have also exposed numerous issues, impacting the user experience and safety of child safety seats.

[0003] Some child safety seats feature independent rotation and pitch adjustment mechanisms, making operation cumbersome and complex. Adjusting the seat's posture requires users to adjust both rotation and pitch separately, a time-consuming and labor-intensive process that can be challenging in real-world scenarios, such as limited space in a vehicle. This cumbersome process reduces user interest in the seat's adjustment features and prevents them from fully utilizing the seat's comfort benefits.

[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 installing the front and rear card parts of the rotating group into the stripping spaces on both sides of the base group respectively, and then rotating the rotating group to make the card parts fit into the corresponding card slots. When in use, press the unlocking piece to separate the fixing piece from the positioning slot, and release the unlocking piece to lock the position after rotating the seat to the appropriate angle. The front and rear adjustment is achieved by sliding the connecting shaft of the seat body in the strip guide hole of the rotating group. This separate operation method not only consumes time and energy, but also makes the operation more difficult in actual use scenarios, such as when the space in the car is limited, which brings great inconvenience to the user. This cumbersome operation process reduces the user's willingness to use the seat adjustment function and fails to give full play to the comfort advantages of the seat.

[0005] To this end, how to provide a new seat posture adjustment method that integrates the seat adjustment function, allows the rotation and pitch angle adjustment to be completed in one action, and makes the limit and support of the seat after adjustment more precise and stable, is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a child safety seat in response to the above-mentioned existing technical status, which integrates the adjustment function of the seat, allows the rotation and pitch angle adjustment to be completed in one action, and can make the position limitation and support of the seat after adjustment more precise and stable.

[0007] The technical solution adopted by the present invention to solve the above technical problems is as follows: a child safety seat includes a base assembly, a rotating disk, an adjustment seat and a seat body, wherein the rotating disk is arranged on the base assembly to rotate around its own axis, the adjustment seat is arranged to slide along the radial direction of the rotating disk and rotate synchronously with the rotating disk, the seat body is fixed on the adjustment seat, and further includes

[0008] a first locking mechanism, provided between the base assembly and the rotating disk, having a first locking state for locking the rotating disk from rotating relative to the base assembly and a first unlocking state for allowing the rotating disk to rotate;

[0009] A second locking mechanism is provided between the adjustment seat and the rotating disk, and has a second locking state in which the adjustment seat is locked from sliding relative to the rotating disk and a second unlocking state in which the adjustment seat is allowed to slide;

[0010] A 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 an external force, the first locking mechanism and the second locking mechanism can be synchronously switched to the first unlocking state and the second unlocking state, so that the seat body can be synchronously rotated and radially slid.

[0012] In order to ensure that the first locking mechanism stably and reliably realizes the locking and unlocking functions, preferably, the first locking mechanism includes a lock buckle, a cable and a spring;

[0013] The lock buckle is slidably disposed 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, and the linkage handle can drive the lock buckle to switch from a first locked state to a first unlocked state through the cable when the linkage handle is in a moving state;

[0014] The base assembly is provided with a locking groove adapted to the locking buckle, and the spring is arranged between the locking buckle and the rotating disk, so that the locking buckle remains in the first locking state inserted into the locking groove when no external force is applied.

[0015] In order to improve the durability and connection stability of the cable, preferably, the cable is a steel wire cable, both ends of the steel wire cable are provided with ball heads, the outer periphery of the steel wire cable is provided with a flexible sleeve, the linkage handle and the lock buckle are respectively provided with ball head slots adapted to the corresponding ball heads, the spring is sleeved on the steel wire cable and its two ends are respectively in contact with the lock buckle and the rotating disk.

[0016] In order to enable the seat body to have multiple stable locking positions to meet different usage requirements, preferably, the base assembly is provided with two locking grooves, and the two locking grooves are symmetrically distributed with respect to the axis of the rotating disk, and the lock buckle also has two locking grooves corresponding to each other.

[0017] Each lock buckle is inserted into a corresponding lock slot in a first locking state, and can be inserted into another lock slot after the rotating disk rotates 180 degrees, so that the seat body has two locking positions separated by 180 degrees.

[0018] In order to facilitate the user to intuitively judge the working state 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 comprising a rotating member and a torsion spring, and the rotating member is rotatably provided on the base assembly;

[0019] A locking identification area and an unlocking identification area are provided on the surface of the rotating member, and a viewing window is provided on the base assembly, through which the locking identification area or the unlocking identification area can be exposed one by one;

[0020] When the lock buckle is in a first locking state, the rotating member can push the rotating member to rotate and expose the locking identification area. When the lock buckle is in a first unlocking state, the rotating member can rotate and reset under the action of the torsion spring to expose the unlocking identification area.

[0021] In order to achieve effective locking and unlocking of the sliding of the adjustment seat by the second locking mechanism and to better realize linkage with the first locking mechanism, preferably, the second locking mechanism includes a transversely extending locking rod, the locking rod is laterally movably arranged on the adjustment seat, the locking rod is provided with a vertically extending first guide column, and the linkage handle is provided with an inclined guide groove adapted to the first guide column;

[0022] The linkage handle can drive the locking rod to switch from the second locking state to the second unlocking state through the linkage cooperation with the first guide column through the inclined guide groove in the moving state;

[0023] The rotating disk is further provided with a plurality of locking holes distributed at intervals, and the locking rod can be inserted into one of the locking holes in the second locking state.

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

[0025] Two protruding mounting parts are formed on the top of the rotating disk, the seat body is fixed on the mounting parts, and the adjustment seat is arranged in the interval between the two mounting parts;

[0026] A plurality of locking holes are provided on the opposite side walls of the two mounting portions, and the locking holes are spaced apart along the moving direction of the linkage handle. The locking rod is inserted into the corresponding locking hole in the second locking state.

[0027] In order to accurately 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 spaced apart are protruding from the bottom of the guide groove. The linkage handle is also provided with two strip holes corresponding to the second guide posts one by one, and each strip hole extends along the movement direction of the linkage handle;

[0028] The linkage handle is slidably mounted on the second guide column through the strip guide hole, and the interval between the two second guide columns is used to limit the linear movement trajectory of the linkage handle.

[0029] In order to ensure the stability and limiting effect of the installation of the rotating disk, preferably, the base assembly includes a base and a limiting pressure ring provided on the base, the limiting pressure ring is formed with an inner circumferential surface adapted to the outer circumferential surface of the rotating disk, the locking groove is opened on the inner circumferential surface of the limiting pressure ring, the locking buckle protrudes from the outer circumferential surface of the rotating disk and is inserted into the locking groove in the first locking state, and the limiting pressure ring is also formed with a limiting step surface for limiting the rotating disk from escaping outward.

[0030] In order to observe the different states of the identification mechanism more directly, preferably, two opposite sides of the limiting pressure ring are formed with two lugs exposed from the base, and corresponding positions of the base are formed with mounting grooves for placing the two lugs, and both lugs are provided with the viewing window.

[0031] Compared to the prior art, the present invention has the following advantages: by providing a linkage handle that is linearly movable on the adjustment seat, and simultaneously connecting the linkage handle to the first and second locking mechanisms via a mechanical connection structure, when the linkage handle is moved in a predetermined direction under the action of an external force, it simultaneously drives the first locking mechanism to switch to a first unlocked state, allowing the rotating disk to rotate, and drives the second locking mechanism to switch to a second unlocked state, allowing the adjustment seat to slide, thereby enabling simultaneous rotational adjustment and pitch angle adjustment of the seat body. The user no longer needs to perform separate rotational and pitch angle adjustment operations, and can complete all seat posture adjustments in a single operation. This effectively solves the problem of existing child safety seat adjustment mechanisms being independent and cumbersome. In practical use scenarios such as limited vehicle space, this significantly reduces operational difficulty, saves users time and effort, and increases their willingness to use the seat adjustment function. Furthermore, the first and second locking mechanisms, which lock the rotating disk and adjustment seat respectively, ensure more precise and stable seat positioning and support after adjustment, thereby improving child safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the seat body after rotating 180 degrees in this embodiment;

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

[0035] Figure 4 Schematic diagram of the structure after the rotating disk, linkage handle, first locking mechanism and second locking mechanism 6 are installed in this embodiment;

[0036] Figure 5 for Figure 4 Schematic diagram of the bottom perspective structure;

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

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

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

[0040] Figure 9 Schematic diagram of the decomposed structure of the identification mechanism in this embodiment. DETAILED DESCRIPTION

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

[0042] Figures 1 to 9 The figure shows the best 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 disk 2, an adjustment seat 3, a seat body 4, a first locking mechanism 5, a second locking mechanism 6, a linkage handle 7 and an identification mechanism 8.

[0044] Among them, reference Figures 1 to 3 As shown, the rotating disk 2 can rotate about its own axis on the base assembly 1, the adjusting seat 3 can slide along the radial direction of the rotating disk 2 and rotate synchronously with the rotating disk 2, and the seat body 4 is fixedly mounted 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, and 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. The identification mechanism 8 is used to identify the locking state of the first locking mechanism 5.

[0045] Base assembly 1: Reference Figure 3 As shown, the base assembly 1 includes a base 1c and a limiting pressure ring 1d provided on the base 1c. The base 1c provides a support base 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 of the base 1c for placing the lug 1d3 of the limiting pressure ring 1d. The limiting pressure ring 1d has an inner circumference 1d1 that fits the outer circumference of the rotating disk 2. Two locking grooves 1a are symmetrically distributed relative to the axis of the rotating disk 2 on the inner circumference 1d1. The locking grooves 1a are used to cooperate with the lock buckle 5a of the first locking mechanism 5 to achieve locking of the rotating disk 2. Two lugs 1d3 exposed to the base 1c are formed on the two opposite sides of the limiting pressure ring 1d. The lugs 1d3 are each provided with a viewing window 1b for observing the status of the identification mechanism 8. In addition, a limiting step surface 1d2 is formed on the limiting pressure ring 1d to limit 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 mounted within the retaining ring 1d of the base assembly 1, rotatably about its own axis. Two raised mounting portions 2b are formed on the top of the rotating disk 2, to which the seat body 4 is secured via bolts or other fixing means. Multiple locking holes 2a are provided on the opposing sidewalls of the two mounting portions 2b. These locking holes 2a are spaced apart and arranged in a pattern along the direction of movement of the linkage handle 7. These locking holes 2a engage the locking rod 6a of the second locking mechanism 6 to lock the adjustable seat 3.

[0047] Adjustment seat 3: reference Figures 4 to 6 As shown, the adjustment seat 3 is mounted on the rotating disk 2, slidingly arranged along its radial direction. Located within the gap between the two mounting portions 2b, it rotates synchronously with the rotating disk 2. The adjustment seat 3 is provided with a guide groove 3a for the movement of the linkage handle 7. Two second guide posts 3a1, spaced apart, are projecting from the bottom of the guide groove 3a. The adjustment seat 3 and the rotating disk 2 can be slidably connected using a conventional sliding connection structure, although this can also be achieved by additionally providing slide rails or sliders.

[0048] Seat body 4: Reference Figures 1 to 3 As shown, the seat body 4 is fixed to the mounting portion 2b of the rotating disk 2 on the adjustment seat 3, providing a seat for the child. The specific structure and design of the seat body 4 can be set according to the conventional requirements of the child safety seat, such as being equipped with a safety 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 provided between the base assembly 1 and the rotating disk 2 and includes a lock buckle 5a, a cable 5b and a spring 5c.

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

[0051] The lock buckle 5a is provided with a ball head slot 5b3 that is compatible with the ball head 5b1 of the cable 5b. The cable 5b can be a steel cable, with ball heads 5b1 provided at both ends of the steel cable, and a flexible sleeve 5b2 provided on the outer periphery. The first end of the cable 5b is connected to the ball head slot 5b3 of the lock buckle 5a through the ball head 5b1, and the second end is connected to the ball head slot 5b3 on the linkage handle 7 through the ball head 5b1. When the linkage handle 7 moves, the lock buckle 5a is pulled by the cable 5b, so that it switches from the first locked state to the first unlocked state. The spring 5c ​​is mounted on the steel cable, and its two ends respectively abut the lock buckle 5a and the rotating disk 2. When there is no external force, the spring 5c ​​keeps the lock buckle 5a in the first locked state inserted into the lock slot 1a.

[0052] Second locking mechanism 6: Reference Figure 6 and Figure 8As shown, the second locking mechanism 6 is disposed between the adjustment base 3 and the rotating disk 2 and comprises two laterally extending locking rods 6a. The locking rods 6a are symmetrically positioned on either side of the adjustment base 3 and are laterally movable thereon. Each locking rod 6a is provided with a vertically extending first guide post 6a1, which mates with an inclined guide slot 7a on the linkage handle 7. In the second locking state, the locking rods 6a are inserted into the locking holes 2a on the sidewalls of the mounting portion 2b of the rotating disk 2, locking the adjustment base 3 relative to the rotating disk 2.

[0053] Linkage handle 7: Reference Figures 3 to 5 As shown, the linkage handle 7 is linearly movable within the guide groove 3a of the adjustment seat 3. The linkage handle 7 is provided with two strip-shaped holes 7b corresponding one-to-one with the second guide posts 3a1. Each strip-shaped hole 7b extends along the movement direction of the linkage handle 7. The linkage handle 7 is slidably mounted on the second guide posts 3a1 through the strip-shaped guide holes 7b. The spacing between the two second guide posts 3a1 defines the linear movement trajectory of the linkage handle 7. The linkage handle 7 is also provided with two inclined guide grooves 7a that mate with the first guide posts 6a1 of the locking rod 6a. When the linkage handle 7 moves, the inclined guide grooves 7a and the first guide posts 6a1 interact to drive the locking rod 6a from the second locked state to the second unlocked state.

[0054] Identification Agency 8: Reference Figure 3 and Figure 9 As shown, the identification mechanism 8 is provided on the base assembly 1, and is used to identify whether the first locking mechanism 5 is in the first locking state, and includes a rotating member 8a and a torsion spring 8b. The rotating member 8a is rotatably provided on the base assembly 1, and a locking identification area 8a1 and an unlocking identification area 8a2 are provided on its surface. When the lock buckle 5a is in the first locking state, it pushes the rotating member 8a to rotate, so that the locking identification area 8a1 is exposed through the viewing window 1b; when the lock buckle 5a is in the first unlocking state, the rotating member 8a rotates and resets under the action of the torsion spring 8b, so that the unlocking identification area 8a2 is exposed through the viewing window 1b. We can also provide better recognition by setting the locking identification area 8a1 and the unlocking identification area 8a2 to different colors. The torsion spring 8b is installed on the rotating shaft of the rotating member 8a to provide the rotating member 8a with a force for rotation and reset.

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

[0056] 1. Linked Unlocking Principle: When the 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 respectively through two different mechanical connection structures, achieving synchronous unlocking.

[0057] In the first locking mechanism 5, the linkage handle 7 transmits tension via the cable 5b. The ball heads 5b1 at each end of the cable 5b tightly engage with the ball head retaining grooves 5b3 on the linkage handle 7 and the lock buckle 5a, respectively, forming a secure connection. When the linkage handle 7 moves, the ball head retaining grooves 5b3 drive the ball head 5b1, which in turn pulls the linkage handle 5b. This causes the lock buckle 5a, connected to the other end of the cable 5b, to overcome the elastic force of the spring 5c ​​and withdraw from the lock groove 1a on the inner circumference 1d1 of the limiting pressure ring 1d of the base assembly 1, releasing the rotation restriction of the rotating disk 2 relative to the base assembly 1, and the first locking mechanism 5 switches to the first unlocked state.

[0058] The second locking mechanism 6 is unlocked by the movement of the linkage handle 7, which utilizes the coordinated interaction between the inclined guide slot 7a and the first guide post 6a1 on the lock rod 6a. When the linkage handle 7 is moved in a predetermined direction, the inclination angle of the inclined guide slot 7a causes the first guide post 6a1 to slide within the guide slot. Since the first guide post 6a1 is fixedly connected to the lock rod 6a, this drives the lock rod 6a to move laterally, allowing the lock rod 6a to exit the lock hole 2a on the side wall of the mounting portion 2b of the rotating disk 2. This releases the restriction on the sliding movement of the adjustment seat 3 relative to the rotating disk 2, and the second locking mechanism 6 switches to the second unlocked state.

[0059] 2. Posture Adjustment Principle

[0060] With both the first locking mechanism 5 and the second locking mechanism 6 unlocked, the seat body 4 is free to move. Because the seat body 4 is fixed to the adjustment base 3, which rotates synchronously with the rotating disk 2 and can slide radially along the rotating disk 2, the user can adjust the seat body 4 in two dimensions simultaneously.

[0061] The user can rotate the seat body 4 around the axis of the rotating disk 2 to change its orientation to meet different riding needs, such as facing forward, facing backward, etc.; at the same time, the user can also push the seat body 4 to make the adjustment seat 3 slide radially on the rotating disk 2 to adjust the front and rear position of the seat and simulate the adjustment of the pitch angle to adapt to children of different body shapes and riding comfort needs.

[0062] 3. Locking Principle

[0063] When the seat body 4 is adjusted to a suitable position, the linkage handle 7 is released, and the first locking mechanism 5 and the second locking mechanism 6 are automatically restored to the locked state under the action of the corresponding reset structure.

[0064] In the first locking mechanism 5, the spring 5c ​​is deformed and stores elastic potential energy when the lock buckle 5a is pulled. When the external force of the linkage handle 7 disappears, the spring 5c ​​releases the elastic potential energy, pushing the lock buckle 5a to reset along the sliding direction, so that the lock buckle 5a is reinserted into the lock groove 1a on the inner circumference 1d1 of the limiting pressure ring 1d, locking the rotating disk 2 in the current position to prevent 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 is reset by moving laterally after the linkage handle 7 is released, so that the locking rod 6a is reinserted into the corresponding locking hole 2a on the side wall of the mounting portion 2b of the rotating disk 2, locking the adjustment seat 3 in the current position to prevent it from sliding relative to the rotating disk 2, thereby achieving stable locking of the position 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] 4. State Recognition Principle

[0067] Identification mechanism 8 visually displays the operating status of the first locking mechanism 5. When the lock buckle 5a is in the first locking state (i.e., inserted into the locking slot 1a), the lock buckle 5a pushes the rotating member 8a to rotate about its axis during insertion. As the rotating member 8a rotates, the locking identification area 8a1 on the surface of the rotating member 8a gradually moves to the position of the viewing window 1b, becoming visible through the viewing window 1b. The user can now see the locking identification area 8a1 through the viewing window 1b, confirming that the first locking mechanism 5 is in the locked state and the seat is securely locked.

[0068] When the first locking mechanism 5 is in the first unlocked state (i.e., when the lock catch 5a is withdrawn from the lock slot 1a), the rotating member 8a is no longer pushed by the lock catch 5a. At this point, the torsion spring 8b attached to the rotating shaft of the rotating member 8a comes into play. The stored elastic potential energy of the torsion spring 8b drives the rotating member 8a to rotate and reset, causing the unlocked identification area 8a2 to move to the position of the viewing window 1b and be exposed. The user can see the unlocked identification area 8a2 through the viewing window 1b, indicating that the first locking mechanism 5 is unlocked and the seat is adjustable.

[0069] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "up, down", etc. indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A child safety seat, comprising a base assembly (1), a rotating disk (2), an adjustment seat (3) and a seat body (4), wherein the rotating disk (2) is rotatably arranged on the base assembly (1) around its own axis, the adjustment seat (3) is slidably arranged along the radial direction of the rotating disk (2) and rotates synchronously with the rotating disk (2), and the seat body (4) is fixed on the adjustment seat (3), characterized in that: Also includes A first locking mechanism (5) is provided between the base assembly (1) and the rotating disk (2), and has a first locking state for locking the rotating disk (2) from rotating relative to the base assembly (1) and a first unlocking state for allowing the rotating disk (2) to rotate; A second locking mechanism (6) is provided between the adjustment seat (3) and the rotating disk (2), and has a second locking state for locking the adjustment seat (3) from sliding relative to the rotating disk (2) and a second unlocking state for allowing the adjustment seat (3) to slide; A linkage handle (7) is linearly movable 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 in a preset direction under the action of an external force, the first locking mechanism (5) and the second locking mechanism (6) can be synchronously switched to the first unlocking state and the second unlocking state, so that the seat body (4) can be synchronously rotated and radially slid.

2. The child safety seat according to claim 1, characterized in that: The first locking mechanism (5) comprises a lock buckle (5a), a pull rope (5b) and a spring (5c); The lock buckle (5a) is slidably arranged on the rotating disk (2) and is connected to the first end of the cable (5b), and the second end of the cable (5b) is connected to the linkage handle (7). The linkage handle (7) can drive the lock buckle (5a) to switch from a first locked state to a first unlocked state through the cable (5b) when in a moving state; The base assembly (1) is provided with a locking groove (1a) adapted to the locking buckle (5a), and the spring (5c) is provided between the locking buckle (5a) and the rotating disk (2), so that the locking buckle (5a) remains in a first locking state 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 cable, both ends of which are provided with ball heads (5b1), the outer periphery of the steel cable is provided with a flexible sleeve (5b2), the linkage handle (7) and the lock buckle (5a) are respectively provided with ball head slots (5b3) adapted to the corresponding ball heads (5b1), and the spring (5c) is sleeved on the steel cable and has its two ends respectively abutted against the lock buckle (5a) and the rotating disk (2).

4. The child safety seat according to claim 2, characterized in that: The base assembly (1) is provided with two locking grooves (1a), and the two locking grooves (1a) are symmetrically distributed relative to the axis of the rotating disk (2), and the locking buckles (5a) also have two and correspond one to one with the locking grooves (1a); Each lock buckle (5a) is inserted into a corresponding lock slot (1a) in a first locking state, and can be inserted into another lock slot (1a) after the rotating disk (2) rotates 180 degrees, so that the seat body (4) has two locking positions separated by 180 degrees.

5. The child safety seat according to claim 1, characterized in that: The base assembly (1) is further provided with an identification mechanism (8) for identifying whether the first locking mechanism (5) is in the first locking state. The identification mechanism (8) comprises a rotating member (8a) and a torsion spring (8b). The rotating member (8a) is rotatably provided on the base assembly (1). A locking identification area (8a1) and an unlocking identification area (8a2) are provided on the surface of the rotating member (8a), and a viewing window (1b) is provided on the base assembly (1), and the locking identification area (8a1) or the unlocking identification area (8a2) can be exposed one by one through the viewing window (1b); When the lock buckle (5a) is in a first locked state, the rotating member (8a) can be pushed to rotate and the locking identification area (8a1) can be exposed. When the lock buckle (5a) is in a first unlocked state, the rotating member (8a) can be rotated and reset under the action of the torsion spring (8b) to expose the unlocking identification area (8a2).

6. The child safety seat according to any one of claims 1 to 5, characterized in that: The second locking mechanism (6) comprises a transversely extending locking rod (6a), the locking rod (6a) being laterally movable on the adjustment seat (3), the locking rod (6a) being provided with a vertically extending first guide column (6a1), and the linkage handle (7) being provided with an inclined guide groove (7a) adapted to the first guide column (6a1); The linkage handle (7) can drive the locking rod (6a) to switch from the second locking state to the second unlocking state through the linkage cooperation with the first guide column (6a1) through the inclined guide groove (7a) in the moving state; The rotating disk (2) is also provided with a plurality of locking holes (2a) distributed at intervals, and the locking rod (6a) can be inserted into one of the locking holes (2a) in the second locking state.

7. The child safety seat according to claim 6, characterized in that: There are two locking rods (6a) symmetrically arranged on both sides of the adjustment seat (3), and correspondingly, there are also two inclined guide grooves (7a); Two raised mounting portions (2b) are formed on the top of the rotating disk (2), the seat body (4) is fixed on the mounting portions (2b), and the adjustment seat (3) is arranged in the interval between the two mounting portions (2b); A plurality of locking holes (2a) are provided on opposite side walls of the two mounting portions (2b), and the locking holes (2a) are spaced apart along the moving direction of the linkage handle (7), and the locking rod (6a) is inserted into the corresponding locking 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, and two second guide pillars (3a1) are protruded at the bottom of the guide groove (3a) and spaced apart. The linkage handle (7) is also provided with two strip holes (7b) corresponding to the second guide pillars (3a1) one by one, and 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 column (3a1) through the strip guide hole (7b), and the interval between the two second guide columns (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) provided on the base (1c); the limiting pressure ring (1d) is formed with an inner peripheral surface (1d1) adapted to the outer peripheral surface of the rotating disk (2); the locking groove (1a) is provided on the inner peripheral surface (1d1) of the limiting pressure ring (1d); the locking buckle (5a) protrudes from the outer peripheral surface of the rotating disk (2) and is inserted into the locking groove (1a) in a first locking state; the limiting pressure ring (1d) is also formed with 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: Two lugs (1d3) exposed from the base (1c) are formed on two opposite sides of the limiting pressure ring (1d), and corresponding positions of the base (1c) are formed with mounting grooves (1c1) for placing the two lugs (1d3), and both lugs (1d3) are provided with the viewing window (1b).

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