A child safety seat that can be linked to unlock at any rotation angle

Abstract

The present invention provides a child safety seat that can be unlocked in a linked manner at any rotation angle, including a base and a rotating disk. The seat body is provided with a front locking rod and a rear locking rod, and the rotating disk is connected with a front hook and a rear hook; the rotating disk is equipped with a front hook driving component and a rear hook driving component, and the base is connected with an unlocking handle, a front and rear hook unlocking component and a gear positioning block. The front and rear hook unlocking component includes an unlocking connection seat and an unlocking wire assembly. Both the front hook driving component and the rear hook driving component are linked and connected with the unlocking connection seat; the unlocking handle pushes the gear positioning block to act so that it disengages from the rotating disk, so as to enable the seat body to rotate to any angle. When the unlocking handle is pulled for unlocking, the unlocking handle drives the unlocking wire assembly to move, and the unlocking wire assembly drives the unlocking connection seat to move, so as to drive the front hook driving component and the rear hook driving component to act simultaneously, realizing that the front hook driving component drives the front hook and the rear hook driving component drives the rear hook to be unlocked simultaneously. The structure is simple and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive safety products, and more particularly, to a child safety seat capable of linkage unlocking at any rotation angle. Background Art

[0002] A child safety seat generally includes a base and a basket or a safety seat detachably connected to the base. In order to facilitate the alternate installation of the basket or the safety seat on the base or the removal of the basket or the safety seat, a unlocking structure is provided between the base and the basket or the safety seat. However, the existing unlocking structure can only unlock the seat body when the seat body rotates to a specified angle, and the existing unlocking structure design and the structure for restricting the rotation of the rotating disk are relatively complex, with many components and cumbersome operations. Summary of the Invention

[0003] To solve at least one of the above problems, the present invention provides a child safety seat capable of linkage unlocking at any rotation angle, including a base and a rotating disk rotatably connected to each other. A seat body is detachably mounted on the rotating disk. The seat body is provided with a front locking rod and a rear locking rod. The rotating disk is movably connected with a front hook for locking and cooperating with the front locking rod and a rear hook for locking and cooperating with the rear locking rod. The rotating disk is provided with a front hook driving assembly for driving the front hook to act and a rear hook driving assembly for driving the rear hook to act. The base is movably connected with a unlocking handle, a front and rear hook unlocking assembly and a gear positioning block locked with the rotating disk. The front and rear hook unlocking assembly includes a unlocking connecting seat and a unlocking cable assembly rotatably connected to each other. The front hook driving assembly and the rear hook driving assembly are both linked and connected with the unlocking connecting seat. The unlocking cable assembly is linked and connected with the unlocking handle. When the unlocking handle pushes the gear positioning block to act so that the gear positioning block disengages from the rotating disk, the seat body can rotate to any angle, and when the unlocking handle is pulled to unlock, the unlocking handle drives the unlocking cable assembly to move, and the unlocking cable assembly drives the unlocking connecting seat to move, so as to drive the front hook driving assembly and the rear hook driving assembly to act simultaneously, and the front hook driving assembly drives the front hook and the rear hook driving assembly drives the rear hook to unlock simultaneously.

[0004] Optionally, the front hook drive assembly includes a front hook unlocking drive member and a front hook locking limit rod that are connected to each other. The unlocking connection seat is linked and connected to the front hook unlocking drive member. When the front catch hook and the front lock rod are locked to each other, the front hook locking limit rod cooperates with the front catch hook to limit the movement of the front catch hook. When the unlocking handle is pulled to cause the unlocking cable assembly to drive the unlocking connection seat to move, the front hook unlocking drive member drives the front hook locking limit rod to move so that the front hook locking limit rod is disengaged from the front catch hook, realizing the unlocking of the front catch hook; the rear hook drive assembly includes a rear hook unlocking drive member and a rear hook locking limit rod that are connected to each other. The unlocking handle is linked and connected to the rear hook unlocking drive member. When the rear catch hook and the rear lock rod are locked to each other, the rear hook locking limit rod cooperates with the rear catch hook to limit the movement of the rear catch hook. When the unlocking handle is pulled to cause the unlocking cable assembly to drive the unlocking connection seat to move, the rear hook unlocking drive member drives the rear hook locking limit rod to move so that the rear hook locking limit rod is disengaged from the rear catch hook, realizing the unlocking of the rear catch hook.

[0005] Optionally, the front hook unlocking drive member is provided with a second front inclined slot, and the rear hook unlocking drive member is provided with a second rear inclined slot. The unlocking connection seat is connected with a front unlocking connection shaft that is slidably connected to the second front inclined slot and a rear unlocking connection shaft that is slidably connected to the second rear inclined slot; when the unlocking handle is pulled forward to cause the unlocking cable assembly to drive the unlocking connection seat to move downward, the unlocking connection seat drives the front unlocking connection shaft to move from one end of the second front inclined slot to the other end, so that the front hook locking limit rod is disengaged from the front catch hook, realizing the unlocking of the front catch hook, and at the same time the unlocking connection seat drives the rear unlocking connection shaft to move from the second rear inclined slot to the other end, so that the rear hook locking limit rod is disengaged from the rear catch hook, realizing the unlocking of the rear catch hook.

[0006] Optionally, the front hook unlocking drive member is provided with a first front inclined slot, the rear hook unlocking drive member is provided with a first rear inclined slot, and the rotating disk is provided with a front vertical slot corresponding to the position of the first front inclined slot and a rear vertical slot corresponding to the position of the first rear inclined slot; the front hook locking limit rod penetrates through the first front inclined slot and the front vertical slot and is slidably connected to the first front inclined slot and the front vertical slot. When the unlocking handle is pulled to drive the unlocking cable assembly to drive the unlocking connection seat to move, the front hook unlocking drive member drives the front hook locking limit rod to move from one end of the front vertical slot to the other end, so that the front hook locking limit rod is disengaged from the front hook, realizing the unlocking of the front hook; the rear hook locking limit rod penetrates through the first rear inclined slot and the rear vertical slot and is slidably connected to the first rear inclined slot and the rear vertical slot. When the unlocking handle is pulled to drive the unlocking cable assembly to drive the unlocking connection seat to move, the rear hook unlocking drive member drives the rear hook locking limit rod to move from one end of the rear vertical slot to the other end, so that the rear hook locking limit rod is disengaged from the rear hook, realizing the unlocking of the rear hook.

[0007] Optionally, the front hook is provided with a front locking slot for locking and cooperating with the front locking rod and a front limiting portion for abutting against the front hook locking limit rod, the rear hook is provided with a rear locking slot for locking and cooperating with the rear locking rod and a rear limiting portion for abutting against the rear hook locking limit rod, and both the front hook and the rear hook are hingedly connected to the rotating disk.

[0008] Optionally, it further includes a front hook elastic member and a rear hook elastic member. Two ends of the front hook elastic member are respectively connected to the front hook and the rotating disk, and two ends of the rear hook elastic member are respectively connected to the rear hook and the rotating disk.

[0009] Optionally, the gear position positioning block is provided with a first hinged portion, and the base is provided with a second hinged portion hingedly connected to the first hinged portion. When the unlocking handle moves backward to drive the gear position positioning block to rotate around the first hinged portion, the gear position positioning block is disengaged from the rotating disk, so as to realize the unlocking of the rotating disk.

[0010] Optionally, the width of the gear position positioning block in the up-down direction gradually increases from front to back; the rotating disk is provided with a plurality of gear position slots arranged at intervals, and one of the plurality of gear position slots is inserted and locked with the gear position positioning block.

[0011] Optionally, a rotating positioning seat is provided on the base, and the rotating disk is provided with a mounting hole for cooperating with the rotating positioning seat; the base is further provided with a front hook and a rear hook, and both the front hook and the rear hook cooperate with the edge of the rotating disk.

[0012] Optionally, the front and rear hook unlocking assembly further includes a cable connecting member movably connected to the base. The unlocking cable assembly includes a cable and a buckle connected to the unlocking connection seat. The cable is provided with a first terminal and a second terminal. The cable connecting member is provided with a mounting hole connected to the first terminal, and the buckle is disposed in a mounting groove connected to the second terminal. When the unlocking handle is pulled forward, the unlocking handle drives the cable connecting member to move, the cable connecting member drives the cable to move, the second terminal drives the buckle to move, and the buckle drives the unlocking connection seat to move, so as to finally unlock the seat body.

[0013] Optionally, a fixing seat is installed on the rotating disc. The fixing seat is provided with a moving hole slidably connected to the buckle and a moving groove slidably connected to the unlocking connection seat. One end of the buckle is provided with a buckle, and the unlocking connection seat is provided with a rotating groove snap-connected and rotatably connected to the buckle; a unlocking return elastic member is installed in the moving groove, and two ends of the unlocking return elastic member are respectively connected to the fixing seat and the unlocking connection seat.

[0014] Optionally, the front end of the unlocking handle is provided with an abutting surface, and the cable connecting member is provided with an abutting platform. When the unlocking handle is pulled forward, the abutting surface abuts against the abutting platform.

[0015] Compared with the prior art, for the child safety seat with any rotation angle capable of linkage unlocking in the present invention, by providing an unlocking connection seat and an unlocking cable assembly rotatably connected to each other, the unlocking connection seat is linked and connected to the front hook driving assembly and the rear hook driving assembly, and the unlocking cable assembly is connected to the unlocking handle, so that when the seat body rotates to any angle, only by pulling the unlocking handle can the front hook driving assembly and the rear hook driving assembly be driven to act simultaneously, to drive the front hook and the rear hook to unlock simultaneously. This structure for realizing the simultaneous linkage unlocking of the front hook and the rear hook through a single action of pulling the unlocking handle, and the unlocking of the rotating disc is realized by the gear positioning block being locked with the rotating disc and the unlocking handle pushing the gear positioning block to act, has a simple structure, few components, low cost, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a partial explosion view of the child safety seat according to an embodiment of the present invention Figure 1 ;

[0017] Figure 2 is a partial explosion view of the child safety seat according to an embodiment of the present invention Figure 2 ;

[0018] Figure 3 is a cross-sectional view of the child safety seat according to an embodiment of the present invention when the seat body is locked;

[0019] Figure 4 isFigure 3 Enlarged view of part A;

[0020] Figure 5 is Figure 3 Enlarged view of part B;

[0021] Figure 6 is Figure 3 Enlarged view of part C;

[0022] Figure 7 Cross-sectional view of the child safety seat according to the embodiment of the present invention when the seat body is unlocked;

[0023] Figure 8 is Figure 7 Enlarged view of part D;

[0024] Figure 9 Cross-sectional view of the child safety seat according to the embodiment of the present invention when the seat body is unlocked at any rotated angle;

[0025] Figure 10 Structural diagram of the seat body according to the embodiment of the present invention;

[0026] Figure 11 Explosion of the child safety seat according to the embodiment of the present invention Figure 3 ;

[0027] Figure 12 Structural diagram of the gear positioning block according to the embodiment of the present invention;

[0028] Figure 13 Partial cross-sectional view of the child safety seat with linkable unlocking at any rotated angle according to the embodiment of the present invention;

[0029] Figure 14 is Figure 13 Enlarged view of part E;

[0030] Figure 15 Cross-sectional view of the child safety seat with linkable unlocking at any rotated angle according to the embodiment of the present invention at the initial position;

[0031] Figure 16 is Figure 15 Enlarged view of part F;

[0032] Figure 17 Partial cross-sectional view of the child safety seat with linkable unlocking at any rotated angle according to the embodiment of the present invention when the unlocking handle moves backward;

[0033] Figure 18 Partial cross-sectional view of the child safety seat with linkable unlocking at any rotated angle according to the embodiment of the present invention during the rotation of the rotating disc;

[0034] Figure 19Partial cross-sectional view of a child safety seat with any rotatable angle and linkage unlocking when the gear positioning block is locked with the rotating disk again in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Seat body; 11. Front locking rod; 12. Rear locking rod; 2. Base; 21. Second hinge part; 22. Rotating positioning seat; 23. Front hook; 24. Rear hook; 25. Sliding groove; 3. Rotating disk; 31. Front vertical groove; 32. Rear vertical groove; 33. Fixed seat; 331. Moving hole; 332. Moving groove; 34. Gear groove; 4. Unlocking handle; 41. Contact surface; 5. Front hook; 51. Front locking groove; 52. Front limiting part; 6. Rear hook; 61. Rear locking groove; 62. Rear limiting part; 7. Front hook driving assembly; 71. Front hook unlocking driving part; 711. First front inclined groove; 712. Second front inclined groove; 72. Front hook locking limiting rod; 8. Rear hook driving assembly; 81. Rear hook unlocking driving part; 811. First rear inclined groove; 812. Second rear inclined groove; 82. Rear hook locking limiting rod; 9. Front and rear hook unlocking assembly; 91. Unlocking connecting seat; 911. Rotating groove; 92. Unlocking cable assembly; 921. Buckle; 9211. Mounting groove; 9212. Snap; 922. Cable; 9221. First terminal; 9222. Second terminal; 93. Front unlocking connecting shaft; 94. Rear unlocking connecting shaft; 95. Unlocking reset elastic part; 96. Cable connecting part; 961. Mounting hole; 962. Contact platform; 10. Front hook elastic part; 20. Rear hook elastic part; 30. Gear positioning block; 301. First hinge part; 3011. Notch; 40. Gear reset elastic part. Detailed implementation manners

[0037] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship during the normal use of the product.

[0039] The terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features. The accompanying drawings of the embodiments of the present invention are provided with 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 upper, and the negative direction of the Z-axis represents the lower.

[0040] An embodiment of the present invention provides a child safety seat that can be unlocked in a linked manner at any rotation angle. Combining Figures 1 to 11 As shown, it includes a base 2 and a rotating disk 3 that are rotatably connected to each other. A seat body 1 is detachably installed on the rotating disk 3. The seat body 1 is provided with a front locking rod 11 and a rear locking rod 12. The rotating disk 3 is movably connected with a front hook 5 for locking and cooperating with the front locking rod 11 and a rear hook 6 for locking and cooperating with the rear locking rod 12. The rotating disk 3 is equipped with a front hook driving component 7 for driving the front hook 5 to act and a rear hook driving component 8 for driving the rear hook 6 to act. The base 2 is movably connected with an unlocking handle 4, a front and rear hook unlocking component 9, and a gear positioning block 30 that is locked with the rotating disk 3. The front and rear hook unlocking component 9 includes an unlocking connection seat 91 and an unlocking cable assembly 92 that are rotatably connected to each other. The front hook driving component 7 and the rear hook driving component 8 are both linked and connected to the unlocking connection seat 91. The unlocking cable assembly 92 is linked and connected to the unlocking handle 4. When the unlocking handle 4 pushes the gear positioning block 30 to act so that the gear positioning block 30 is disengaged from the rotating disk 3 to enable the seat body 1 to rotate to any angle, and the unlocking handle 4 is pulled for unlocking, the unlocking handle 4 drives the unlocking cable assembly 92 to move. The unlocking cable assembly 92 drives the unlocking connection seat 91 to move, so as to drive the front hook driving component 7 and the rear hook driving component 8 to act simultaneously, realizing that the front hook driving component 7 drives the front hook 5 and the rear hook driving component 8 drives the rear hook 6 to unlock simultaneously.

[0041] Among them, the front hook driving component 7 driving the front hook 5 to act means that the front hook driving component 7 drives the front hook 5 to lock or unlock with the front lock rod 11; the rear hook driving component 8 driving the rear hook 6 to act means that the rear hook driving component 8 drives the rear hook 6 to lock or unlock with the rear lock rod 12; the base 2 is used to install the rotating disc 3 and the unlocking handle 4, and the base 2 is also used to connect with the vehicle seat; the chair body 1 is a safety seat or a carrycot, and the front lock rod 11 and the rear lock rod 12 are respectively arranged at the front and rear ends of the bottom of the chair body 1; the preferred way for the front hook 5 and the rotating disc 3 to be movably connected to each other is hinged connection, and the front hook 5 and the rotating disc 3 are hinged through the cooperation of the shaft and the shaft hole structure, and the locking or unlocking with the front lock rod 11 is realized through the rotation of the front hook 5; similarly, the preferred way for the rear hook 6 and the rotating disc 3 to be movably connected to each other is hinged connection, and the rear hook 6 and the rotating disc 3 are also hinged through the cooperation of the shaft and the shaft hole structure, and the locking or unlocking with the rear lock rod 12 is realized through the rotation of the rear hook 6; in addition, the way for the front hook 5 and the rotating disc 3 to be movably connected to each other and the way for the rear hook 6 and the rotating disc 3 to be movably connected to each other can also be sliding connection, and the locking or unlocking with the front lock rod 11 is realized through the translational movement of the front hook 5, and the locking or unlocking with the rear lock rod 12 is realized through the translational movement of the rear hook 6; the unlocking connection seat 91 and the unlocking cable assembly 92 are rotatably connected to each other, so that when the chair body 1 rotates at any angle, that is, when the rotating disc 3 rotates at any angle relative to the base 2, the rotating disc 3 can drive the unlocking connection seat 91 to rotate synchronously relative to the base 2.

[0042] When the chair body 1 is locked, the front hook 5 is locked with the front lock rod 11, and the rear hook 6 is locked with the rear lock rod 12 for infants and young children to ride in the vehicle; when the chair body 1 needs to be unlocked when it rotates to any angle, the user first applies force to the unlocking handle 4 to pull the unlocking handle 4 to move forward, the unlocking handle 4 drives the unlocking cable assembly 92 to move synchronously, the unlocking cable assembly 92 drives the unlocking connection seat 91 to move synchronously, the unlocking connection seat 91 drives the front hook driving component 7 and the rear hook driving component 8 to act simultaneously, the front hook driving component 7 drives the front hook 5 to act so that the front hook 5 is disengaged from the front lock rod 11 to realize unlocking, and at the same time the rear hook driving component 8 drives the rear hook 6 to act so that the rear hook 6 is disengaged from the rear lock rod 12 to realize unlocking, thus completing the unlocking of the chair body 1.

[0043] The child safety seat with a rotatable unlocking linkage at any angle in this embodiment is provided with an unlocking connection seat 91 and an unlocking cable assembly 92 that are rotatably connected to each other. The unlocking connection seat 91 is linked to the front hook driving assembly 7 and the rear hook driving assembly 8, and the unlocking cable assembly 92 is connected to the unlocking handle 4. When the seat body 1 rotates to any angle, only by pulling the unlocking handle 4 can the front hook driving assembly 7 and the rear hook driving assembly 8 be simultaneously driven to act, so as to drive the front hook 5 and the rear hook 6 to unlock simultaneously. This structure that realizes the simultaneous unlocking of the front hook 5 and the rear hook 6 through a single action of pulling the unlocking handle 4, and the unlocking of the rotating disk 3 is achieved by the locking of the gear positioning block 30 and the rotating disk 3 and the movement of the gear positioning block 30 pushed by the unlocking handle 4, has a simple structure, few components, low cost, and is also convenient to operate.

[0044] Optionally, as shown in Figures 1 to 10 The front hook driving assembly 7 includes a front hook unlocking driving member 71 and a front hook locking limiting rod 72 that are connected to each other. The unlocking connection seat 91 is linked to the front hook unlocking driving member 71. When the front hook 5 and the front locking rod 11 are locked to each other, the front hook locking limiting rod 72 cooperates with the front hook 5 to limit the movement of the front hook 5. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to drive the unlocking connection seat 91 to move, the front hook unlocking driving member 71 drives the front hook locking limiting rod 72 to move so that the front hook locking limiting rod 72 is disengaged from the front hook 5, realizing the unlocking of the front hook 5. The rear hook driving assembly 8 includes a rear hook unlocking driving member 81 and a rear hook locking limiting rod 82 that are connected to each other. The unlocking handle 4 is linked to the rear hook unlocking driving member 81. When the rear hook 6 and the rear locking rod 12 are locked to each other, the rear hook locking limiting rod 82 cooperates with the rear hook 6 to limit the movement of the rear hook 6. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to drive the unlocking connection seat 91 to move, the rear hook unlocking driving member 81 drives the rear hook locking limiting rod 82 to move so that the rear hook locking limiting rod 82 is disengaged from the rear hook 6, realizing the unlocking of the rear hook 6.

[0045] Among them, the rotating disk 3 is provided with sliding grooves for the front hook unlocking driving member 71 and the rear hook unlocking driving member 81 to slide, and is fixed by fasteners; when the chair body 1 is locked, the front hook locking limit rod 72 cooperates with the front hook 5 to limit the movement of the front hook 5, so that the front hook 5 is locked with the front locking rod 11, and the rear hook locking limit rod 82 cooperates with the rear hook 6 to limit the movement of the rear hook 6, so that the rear hook 6 is locked with the rear locking rod 12; when the chair body 1 needs to be unlocked, the user first applies force to the unlocking handle 4 to pull the unlocking handle 4 forward, the unlocking handle 4 drives the unlocking cable assembly 92 to move, the unlocking cable assembly 92 drives the unlocking connection seat 91 to move, the unlocking connection seat 91 drives the front hook unlocking driving member 71 and the rear hook unlocking driving member 81 to act simultaneously, and the front hook unlocking driving member 71 drives the front hook locking limit rod 72 to move so that the front hook locking limit rod 72 is separated from the front hook 5, and the rear hook unlocking driving member 81 drives the rear hook locking limit rod 82 to move so that the rear hook locking limit rod 82 is separated from the rear hook 6, thereby realizing the simultaneous unlocking of the front hook 5 and the rear hook 6 and completing the unlocking of the chair body 1.

[0046] In this embodiment, the front hook unlocking driving member 71 and the front hook locking limit rod 72 which are connected to each other and can move synchronously with the unlocking handle 4 are provided, and the rear hook unlocking driving member 81 and the rear hook locking limit rod 82 which are connected to each other and can move synchronously with the unlocking handle 4 are provided. The locking and unlocking of the front hook 5 and the front locking rod 11 are realized through the cooperation and separation of the front hook locking limit rod 72 and the front hook 5, and the locking and unlocking of the rear hook 6 and the rear locking rod 12 are realized through the cooperation and separation of the rear hook locking limit rod 82 and the rear hook 6. The structure is simple and reliable, and the operation is convenient.

[0047] Optionally, as shown in Figures 1 to 10 the front hook unlocking driving member 71 is provided with a second front inclined groove 712, the rear hook unlocking driving member 81 is provided with a second rear inclined groove 812, and the unlocking connection seat 91 is connected with a front unlocking connection shaft 93 which is slidably connected with the second front inclined groove 712 and a rear unlocking connection shaft 94 which is slidably connected with the second rear inclined groove 812; when the unlocking handle 4 is pulled forward to make the unlocking cable assembly 92 drive the unlocking connection seat 91 to move downward, the unlocking connection seat 91 drives the front unlocking connection shaft 93 to move from one end of the second front inclined groove 712 to the other end, so that the front hook locking limit rod 72 is separated from the front hook 5, realizing the unlocking of the front hook 5, and the unlocking connection seat 91 simultaneously drives the rear unlocking connection shaft 94 to move from the second rear inclined groove 812 to the other end, so that the rear hook locking limit rod 82 is separated from the rear hook 6, realizing the unlocking of the rear hook 6.

[0048] Among them, the inclination direction of the second front inclined groove 712 is lower in the front and higher in the rear, and the inclination direction of the second rear inclined groove 812 is higher in the front and lower in the rear. In this embodiment, by the sliding connection between the second front inclined groove 712 and the front unlocking connecting shaft 93 and the sliding connection between the second rear inclined groove 812 and the rear unlocking connecting shaft 94, when the unlocking handle 4 is pulled forward to drive the unlocking cable assembly 92 to drive the unlocking connection seat 91 to move downward, the front hook unlocking driving member 71 and the rear hook unlocking driving member 81 can approach each other to unlock the front hook 5 and the rear hook 6 respectively. The structure is simple and the operation is convenient.

[0049] When it is necessary to unlock the chair body 1, the user first applies a force to the unlocking handle 4 to pull the unlocking handle 4 forward. The unlocking handle 4 drives the unlocking cable assembly 92 to move. The unlocking cable assembly 92 drives the unlocking connection seat 91 to move downward, so that the front unlocking connecting shaft 93 moves from the top end to the bottom end of the second front inclined groove 712, thereby driving the front hook unlocking driving member 71 to move backward to realize the unlocking of the front hook 5. At the same time, the rear unlocking connecting shaft 94 moves from the top end to the bottom end of the second rear inclined groove 812, thereby driving the rear hook unlocking driving member 81 to move forward to realize the unlocking of the rear hook 6, so as to finally realize the simultaneous unlocking of the front hook 5 and the rear hook 6 and complete the unlocking of the chair body 1.

[0050] Optionally, as shown in Figures 1 to 10 The front hook unlocking driving member 71 is provided with a first front inclined groove 711, the rear hook unlocking driving member 81 is provided with a first rear inclined groove 811, and the rotating disc 3 is provided with a front vertical groove 31 corresponding to the position of the first front inclined groove 711 and a rear vertical groove 32 corresponding to the position of the first rear inclined groove 811. The front hook locking and limiting rod 72 passes through the first front inclined groove 711 and the front vertical groove 31 and is slidably connected to the first front inclined groove 711 and the front vertical groove 31. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to drive the unlocking connection seat 91 to move, the front hook unlocking driving member 71 drives the front hook locking and limiting rod 72 to move from one end of the front vertical groove 31 to the other end, so that the front hook locking and limiting rod 72 is disengaged from the front hook 5 to realize the unlocking of the front hook 5. The rear hook locking and limiting rod 82 passes through the first rear inclined groove 811 and the rear vertical groove 32 and is slidably connected to the first rear inclined groove 811 and the rear vertical groove 32. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to drive the unlocking connection seat 91 to move, the rear hook unlocking driving member 81 drives the rear hook locking and limiting rod 82 to move from one end of the rear vertical groove 32 to the other end, so that the rear hook locking and limiting rod 82 is disengaged from the rear hook 6 to realize the unlocking of the rear hook 6.

[0051] Among them, the inclination direction of the first front inclined groove 711 is low in the front and high in the rear, the inclination direction of the first rear inclined groove 811 is high in the front and low in the rear, and the length directions of the front vertical groove 31 and the rear vertical groove 32 are perpendicular to the rotation plane of the rotating disc 3; the first front inclined groove 711, the first rear inclined groove 811, the front vertical groove 31, and the rear vertical groove 32 all have a certain length, so that the front hook locking limit lever 72 can slide in the first front inclined groove 711 and the front vertical groove 31, and the rear hook locking limit lever 82 can slide in the first rear inclined groove 811 and the rear vertical groove 32; the widths of the first front inclined groove 711 and the front vertical groove 31 are close to the outer diameter of the front hook locking limit lever 72, and the widths of the first rear inclined groove 811 and the rear vertical groove 32 are close to the outer diameter of the rear hook locking limit lever 82, so as to minimize the play of the structure.

[0052] When the front hook 5 and the front lock rod 11 are locked to each other, the front hook locking limit lever 72 cooperates with the front hook 5 to limit the movement of the front hook 5. At this time, the front hook locking limit lever 72 is located at the top of the first front inclined groove 711 and the top of the front vertical groove 31. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to move, the unlocking cable assembly 92 drives the unlocking connection seat 91 to move, the unlocking connection seat 91 drives the front hook unlocking driving member 71 to move backward, and the front hook locking limit lever 72 moves from the top of the first front inclined groove 711 to the bottom. And under the action of the first front inclined groove 711, the front hook locking limit lever 72 also moves from the top of the front vertical groove 31 to the bottom at the same time, so that the front hook locking limit lever 72 moves downward and disengages from the front hook 5, realizing the unlocking of the front hook 5; when the rear hook 6 and the rear lock rod 12 are locked to each other, the rear hook locking limit lever 82 cooperates with the rear hook 6 to limit the movement of the rear hook 6. At this time, the rear hook locking limit lever 82 is located at the top of the first rear inclined groove 811 and the top of the rear vertical groove 32. When the unlocking handle 4 is pulled to drive the unlocking cable assembly 92 to move, the unlocking cable assembly 92 drives the unlocking connection seat 91 to move, the unlocking connection seat 91 drives the rear hook unlocking driving member 81 to move forward, and the rear hook locking limit lever 82 moves from the top of the first rear inclined groove 811 to the bottom. And under the action of the first rear inclined groove 811, the rear hook locking limit lever 82 also moves from the top of the rear vertical groove 32 to the bottom at the same time, so that the rear hook locking limit lever 82 moves downward and disengages from the rear hook 6, realizing the unlocking of the rear hook 6.

[0053] Optionally, in combination with Figures 1 to 9As shown, the front and rear hook unlocking assembly 9 further includes a cable connecting member 96 movably connected to the base 2. The unlocking cable assembly 92 includes a cable 922 and a buckle 921 connected to the unlocking connection seat 91. The cable 922 is provided with a first terminal 9221 and a second terminal 9222. The cable connecting member 96 is provided with a mounting hole 961 connected to the first terminal 9221. The buckle 921 is disposed in a mounting groove 9211 connected to the second terminal 9222. When the unlocking handle 4 is pulled forward, the unlocking handle 4 drives the cable connecting member 96 to move. The cable connecting member 96 drives the cable 922 to move. The second terminal 9222 drives the buckle 921 to move. The buckle 921 drives the unlocking connection seat 91 to move, so as to finally unlock the chair body 1.

[0054] Among them, the cable 922 is flexible and can change its shape arbitrarily, so that the cable 922 can follow the shape change during the rotation of the chair body 1, thus ensuring that the unlocking cable assembly 92 can be used normally when the chair body 1 rotates to any position; the cable 922 is not elastic to ensure that the unlocking handle 4 can drive the unlocking connection seat 91 to move synchronously; the cable connecting member 96 has an installation indication color, and the installation indication color is in the open state color when unlocking; there is a sliding groove on the base 2 for the unlocking handle 4 to slide back and forth, and it is fixed by fasteners.

[0055] Optionally, in combination with Figures 1 to 9 As shown, the rotating disc 3 is installed with a fixed seat 33. The fixed seat 33 is provided with a moving hole 331 slidably connected to the buckle 921 and a moving groove 332 slidably connected to the unlocking connection seat 91. One end of the buckle 921 is provided with a buckle 9212. The unlocking connection seat 91 is provided with a rotating groove 911 rotatably connected to the buckle 9212 by clamping.

[0056] Among them, when the cable 922 is pulled, the buckle 921 can move up and down in the moving hole 331, and at the same time the unlocking connection seat 91 can also move up and down in the moving groove 332; the buckle 9212 is cooperatively connected with the rotating groove 911, so that the buckle 921 can drive the unlocking connection seat 91 to move to unlock, and when the chair body 1 rotates, it is ensured that the buckle 921 can rotate relative to the unlocking connection seat 91, so as to realize unlocking of the chair body 1 at any angle.

[0057] Optionally, in combination with Figures 1 to 9 As shown, an unlocking reset elastic member 95 is installed in the moving groove 332. Two ends of the unlocking reset elastic member 95 are respectively connected to the fixed seat 33 and the unlocking connection seat 91.

[0058] Among them, the unlocking and reset elastic member 95 is a compression spring. The two ends of the unlocking and reset elastic member 95 are respectively abutted against the fixed seat 33 and the unlocking connection seat 91. When the chair body 1 needs to be locked on the base 2, the user releases the unlocking handle 4, aligns the front locking rod 11 with the front hook 5, and aligns the rear locking rod 12 with the rear hook 6. Under the action of the gravity of the chair body 1, the front hook 5 and the rear hook 6 will rotate and reset to hook the front locking rod 11 and the rear locking rod 12 respectively. At this time, under the action of the force of the unlocking and reset elastic member 95, the unlocking connection seat 91 moves upward and resets, thereby pushing the front hook unlocking driving member 71 forward and the rear hook unlocking driving member 81 backward to achieve locking. At the same time, the unlocking connection seat 91 also drives the wire 922 to move, and the wire 922 drives the wire connection member 96 to reset to the initial position. At this time, the installation indication color shows the installed color number, and the unlocking handle 4 also resets accordingly.

[0059] Optionally, in combination with Figures 1 to 9 As shown, the front end of the unlocking handle 4 is provided with an abutting surface 41, and the wire connection member 96 is provided with an abutting platform 962. When the unlocking handle 4 is pulled forward, the abutting surface 41 abuts against the abutting platform 962.

[0060] Among them, the upper surface of the unlocking handle 4 is provided with a groove for the user's finger to place, so that the user can smoothly pull the wire connection member 96 forward; when the unlocking handle 4 is pulled forward, the abutting platform 962 contacts the abutting surface 41. Under the thrust of the abutting surface 41, the wire connection member 96 moves forward to complete the unlocking of the disassembly function of the chair body 1.

[0061] Optionally, in combination with Figures 1 to 9 As shown, the front hook 5 is provided with a front locking groove 51 that locks and cooperates with the front locking rod 11 and a front limiting portion 52 that abuts against the front hook locking and limiting rod 72. The rear hook 6 is provided with a rear locking groove 61 that locks and cooperates with the rear locking rod 12 and a rear limiting portion 62 that abuts against the rear hook locking and limiting rod 82. Both the front hook 5 and the rear hook 6 are hingedly connected to the rotating disk 3.

[0062] Among them, the number of the front hooks 5 and the rear hooks 6 is two each. The two front hooks 5 are arranged at intervals and are jointly locked and connected to the front locking rod 11. The two rear hooks 6 are arranged at intervals and are jointly locked and connected to the front locking rod 11, so that the chair body 1 can be firmly locked.

[0063] When the chair body 1 is locked, the front hook locking limit lever 72 abuts against the front limit part 52 to limit the forward rotation of the front lock groove 51, so that the front hook 5 is locked with the front lock rod 11. The rear hook locking limit lever 82 abuts against the rear limit part 62 to limit the backward rotation of the rear lock groove 61, so that the rear hook 6 is locked with the rear lock rod 12. When it is necessary to unlock the chair body 1, the user first applies a force to the unlocking handle 4 to pull the unlocking handle 4 to move forward, driving the unlocking cable assembly 92 to move. The unlocking cable assembly 92 drives the unlocking connection seat 91 to move. The unlocking connection seat 91 drives the front hook unlocking driving part 71 and the rear hook unlocking driving part 81 to act simultaneously. The front hook unlocking driving part 71 synchronously drives the front hook locking limit lever 72 to move so that the front hook locking limit lever 72 is disengaged from the front limit part 52, enabling the front lock groove 51 to rotate forward and disengage from the front lock rod 11. And the rear hook unlocking driving part 81 drives the rear hook locking limit lever 82 to move so that the rear hook locking limit lever 82 is disengaged from the rear limit part 62, enabling the rear lock groove 61 to rotate backward and disengage from the rear lock rod 12, thereby realizing the simultaneous unlocking of the front hook 5 and the rear hook 6 and completing the unlocking of the chair body 1.

[0064] Optionally, in combination with Figures 1 to 9 as shown, it further includes a front hook elastic member 10 and a rear hook elastic member 20. The two ends of the front hook elastic member 10 are respectively connected to the front hook 5 and the rotating disc 3. The two ends of the rear hook elastic member 20 are respectively connected to the rear hook 6 and the rotating disc 3.

[0065] Among them, both the front hook elastic member 10 and the rear hook elastic member 20 are tension springs, enabling the front hook 5 to automatically rotate to unlock with the front lock rod 11 and the rear hook 6 to automatically rotate to unlock with the rear lock rod 12, making the operation more portable. When pulling the unlocking handle 4 forward to unlock, the front hook locking limit lever 72 is disengaged from the front limit part 52. Under the action of the force of the front hook elastic member 10, the front hook 5 enables the front lock groove 51 to rotate forward to achieve unlocking. At this time, when lifting the chair body 1 upward, the front lock groove 51 can be disengaged from the front lock rod 11 to disassemble the chair body 1. When pulling the unlocking handle 4 forward to unlock, the rear hook locking limit lever 82 is disengaged from the rear limit part 62. Under the action of the force of the rear hook elastic member 20, the rear hook 6 enables the rear lock groove 61 to rotate backward to achieve unlocking. At this time, when lifting the chair body 1 upward, the rear lock groove 61 can be disengaged from the rear lock rod 12 to disassemble the chair body 1.

[0066] Optionally, in combination with Figures 11 to 19As shown, it includes a base 2 and a rotating disk 3 that are rotatably connected to each other. The base 2 is movably connected with a release handle 4 and a gear positioning block 30 that locks with the rotating disk 3. The gear positioning block 30 is provided with a first hinge portion 301, and the base 2 is provided with a second hinge portion 21 that is hingedly connected to the first hinge portion 301. When the release handle 4 moves backward to push the gear positioning block 30 to rotate around the first hinge portion 301, the gear positioning block 30 is disengaged from the rotating disk 3, so as to realize the unlocking of the rotating disk 3.

[0067] Wherein, the first hinge portion 301 can be a shaft, and the second hinge portion 21 is a shaft hole. In addition, the first hinge portion 301 can also be a shaft hole, and the second hinge portion 21 is a shaft. The hinged connection between the gear positioning block 30 and the base 2 is realized through the cooperation of the shaft and the shaft hole. The first hinge portion 301 is arranged at one end of the gear positioning block 30. When not under the thrust of the release handle 4, the other end of the gear positioning block 30 is locked with the rotating disk 3. When under the thrust of the release handle 4, the other end of the gear positioning block 30 is disengaged from the rotating disk 3, realizing the unlocking of the rotating disk 3, that is, unlocking the function of the chair body rotation.

[0068] For the child safety seat with any rotation angle that can be linked to unlock in this embodiment, a gear positioning block 30 hingedly connected to the base 2 is provided and locked with the rotating disk 3. When the release handle 4 moves backward and pushes the gear positioning block 30 to rotate, the gear positioning block 30 will be disengaged from the rotating disk 3 to realize the unlocking of the rotating disk 3. The structure is simple, with few components and convenient operation.

[0069] Optionally, in combination with Figures 1 to 14 As shown, the first hinge portion 301 is a pin shaft, and the second hinge portion 21 is a hinge hole. The pin shaft is arranged at the front end of the gear positioning block 30. The outer diameter of the pin shaft is similar to the inner diameter of the hinge hole. The pin shaft can rotate freely in the hinge hole. The hinged connection between the gear positioning block 30 and the base 2 is realized through the cooperation of the pin shaft and the hinge hole. The structure is simple and reliable, and the assembly is convenient.

[0070] Optionally, in combination with Figure 12 As shown, a notch 3011 is provided on the peripheral wall of the pin shaft. The number of notches 3011 is four, and the four notches 3011 are symmetrically and evenly arranged. The provision of the notch 3011 can reduce the contact area between the pin shaft and the hinge hole, and can reduce the noise generated when the gear positioning block 30 rotates relative to the base 2.

[0071] Optionally, in combination with Figure 11 、 Figure 12 、 Figure 14 、 Figure 15As shown, the width of the gear position locating block 30 in the up-down direction gradually increases from front to back. The unlocking handle 4 moves backward and acts on the upper surface of the gear position locating block 30. The width dimension of the gear position locating block 30 in the up-down direction is designed to be larger at the rear end to ensure that the unlocking handle 4 can smoothly push the gear position locating block 30 to rotate around the pin shaft and increase the rotation stroke.

[0072] Optionally, in combination with Figure 11 , Figures 15 to 19 As shown, it further includes a gear position reset elastic member 40. Both ends of the gear position reset elastic member 40 are respectively connected to the gear position locating block 30 and the base 2. The gear position reset elastic member 40 is a compression spring. The upper end of the gear position reset elastic member 40 abuts against the lower surface of the rear end of the gear position locating block 30, so that when not affected by the force of the unlocking handle 4, the rear end of the gear position locating block 30 can be firmly locked with the rotating disk 3 under the elastic force of the gear position reset elastic member 40.

[0073] Optionally, in combination with Figure 11 , Figures 15 to 19 As shown, the rotating disk 3 is provided with a plurality of gear slots 34 arranged at intervals, and one of the plurality of gear slots 34 is inserted and locked with the gear position locating block 30. The provision of a plurality of gear slots 34 arranged at intervals enables the chair body to be rotatably locked in a plurality of positions. The locking is achieved by the insertion connection between the gear slot 34 and the gear position locating block 30. The structure is simple, and when the gear position locating block 30 is subjected to the thrust of the unlocking handle 4, it can smoothly disengage from the gear slot 34, and the structure is reliable.

[0074] Optionally, in combination with Figure 11 , Figure 14 , Figure 15 As shown, the base 2 is provided with a sliding slot 25 for slidably connecting with the unlocking handle 4.

[0075] Among them, the cooperation between the sliding slot 25 and the unlocking handle 4 is used to realize the mutual sliding connection between the unlocking handle 4 and the base 2. When the gear position locating block 30 is locked with the rotating disk 3, it is in an inclined state with the front end lower and the rear end higher. The unlocking handle 4 is provided with a push rod. When the unlocking handle 4 moves backward in the sliding slot 25, the rear end of the push rod will contact and slide on the upper surface of the gear position locating block 30, forcing the rear end of the gear position locating block 30 to be stressed and rotate around the pin shaft, realizing the mutual separation between the gear position locating block 30 and the rotating disk 3. The gear position locating block 30 is connected to the base 2 through a fastener to limit the position of the gear position locating block 30 relative to the base 2 in the up-down direction and prevent the gear position locating block 30 from shifting relative to the base 2 in the up-down direction.

[0076] Optionally, in combination with Figure 11As shown, a rotary positioning seat 22 is provided on the base 2, and the rotary disk 3 is provided with a mounting hole that cooperates with the rotary positioning seat 22. A mounting hole is provided at the middle position of the rotary disk 3, and the inner diameter of the mounting hole is close to the outer diameter of the rotary positioning seat 22. When the gear positioning block 30 is disengaged from the rotary disk 3, the rotary positioning seat 22 can rotate freely within the mounting hole, realizing the function of the chair body being rotatable.

[0077] Optionally, as shown in Figure 11 and Figure 13 , the base 2 is further provided with a front hook 23 and a rear hook 24, and both the front hook 23 and the rear hook 24 cooperate with the edge of the rotary disk 3.

[0078] Among them, the front hook 23 and the rear hook 24 act on the front and rear edges of the rotary disk 3 respectively to fix the relative positions of the rotary disk 3 and the base 2, and can also ensure that the rotary disk 3 rotates smoothly relative to the base 2 around the rotary positioning seat 22.

[0079] The rotary disk 3 is provided with a plurality of gear slots 34. The gear positioning block 30 is placed between the base 2 and the rotary disk 3. A gear return elastic member 40 is provided below the gear positioning block 30. When the rotary disk 3 rotates to the set position, the gear return elastic member 40 pushes the gear positioning block 30 to automatically reset and insert into the preset gear slot 34 on the rotary disk 3, achieving the function of rotational limit locking; when it is necessary to rotate the chair body, only need to push the release handle 4 backward. The release handle 4 acts on the gear positioning block 30 and slides on the upper surface of the gear positioning block 30. The gear positioning block 30 will rotate downward around the base 2, and the gear positioning block 30 will automatically disengage from the gear slot 34, achieving the unlocking rotation function. When the rotary disk 3 rotates to another set position, the gear return elastic member 40 pushes the gear positioning block 30 to automatically reset and insert into another preset gear slot 34 on the rotary disk 3, and the rotational limit locking function can be achieved again.

[0080] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A child safety seat that can be linked to unlock at any rotation angle, characterized in that, it includes a base (2) and a rotating disk (3) that are rotatably connected to each other. A seat body (1) is detachably installed on the rotating disk (3). The seat body (1) is provided with a front locking rod (11) and a rear locking rod (12). The rotating disk (3) is movably connected with a front hook (5) for locking and cooperating with the front locking rod (11) and a rear hook (6) for locking and cooperating with the rear locking rod (12). The rotating disk (3) is equipped with a front hook driving component (7) for driving the front hook (5) to act and a rear hook driving component (8) for driving the rear hook (6) to act. The base (2) is movably connected with an unlocking handle (4), a front and rear hook unlocking component (9), and a gear positioning block (30) that locks with the rotating disk (3). The front and rear hook unlocking component (9) includes an unlocking connection seat (91) and an unlocking cable assembly (92) that are rotatably connected to each other. The front hook driving component (7) and the rear hook driving component (8) are both linked to the unlocking connection seat (91). The unlocking cable assembly (92) is linked to the unlocking handle (4). When the unlocking handle (4) pushes the gear positioning block (30) to act so that the gear positioning block (30) disengages from the rotating disk (3) to enable the seat body (1) to rotate to any angle, and when pulling the unlocking handle (4) to unlock, the unlocking handle (4) drives the unlocking cable assembly (92) to move, and the unlocking cable assembly (92) drives the unlocking connection seat (91) to move, so as to drive the front hook driving component (7) and the rear hook driving component (8) to act simultaneously, realizing that the front hook driving component (7) drives the front hook (5) and the rear hook driving component (8) drives the rear hook (6) to unlock simultaneously.

2. The child safety seat that can be linked to unlock at any rotation angle according to claim 1, characterized in that, The front hook driving assembly (7) includes a front hook unlocking driving member (71) and a front hook locking limiting rod (72) which are connected to each other. The unlocking connecting seat (91) is linked and connected to the front hook unlocking driving member (71). When the front hook (5) and the front locking rod (11) are locked to each other, the front hook locking limiting rod (72) cooperates with the front hook (5) to limit the movement of the front hook (5). When the unlocking handle (4) is pulled to drive the unlocking cable assembly (92) to drive the unlocking connecting seat (91) to move, the front hook unlocking driving member (71) drives the front hook locking limiting rod (72) to move so that the front hook locking limiting rod (72) is disengaged from the front hook (5), realizing the unlocking of the front hook (5). The rear hook driving assembly (8) includes a rear hook unlocking driving member (81) and a rear hook locking limiting rod (82) which are connected to each other. The unlocking handle (4) is linked and connected to the rear hook unlocking driving member (81). When the rear hook (6) and the rear locking rod (12) are locked to each other, the rear hook locking limiting rod (82) cooperates with the rear hook (6) to limit the movement of the rear hook (6). When the unlocking handle (4) is pulled to drive the unlocking cable assembly (92) to drive the unlocking connecting seat (91) to move, the rear hook unlocking driving member (81) drives the rear hook locking limiting rod (82) to move so that the rear hook locking limiting rod (82) is disengaged from the rear hook (6), realizing the unlocking of the rear hook (6).

3. The child safety seat with any rotation angle and linkage unlocking according to claim 2, wherein, the front hook unlocking driving member (71) is provided with a second front inclined slot (712), the rear hook unlocking driving member (81) is provided with a second rear inclined slot (812), and the unlocking connecting seat (91) is connected with a front unlocking connecting shaft (93) slidably connected to the second front inclined slot (712) and a rear unlocking connecting shaft (94) slidably connected to the second rear inclined slot (812). When the unlocking handle (4) is pulled forward to drive the unlocking cable assembly (92) to drive the unlocking connecting seat (91) to move downward, the unlocking connecting seat (91) drives the front unlocking connecting shaft (93) to move from one end of the second front inclined slot (712) to the other end, so that the front hook locking limiting rod (72) is disengaged from the front hook (5), realizing the unlocking of the front hook (5), and at the same time, the unlocking connecting seat (91) drives the rear unlocking connecting shaft (94) to move from the second rear inclined slot (812) to the other end, so that the rear hook locking limiting rod (82) is disengaged from the rear hook (6), realizing the unlocking of the rear hook (6).

4. The child safety seat with any rotation angle and linkage unlocking according to claim 2, wherein, The front hook unlocking drive member (71) is provided with a first front inclined groove (711), the rear hook unlocking drive member (81) is provided with a first rear inclined groove (811), and the rotating disk (3) is provided with a front vertical groove (31) corresponding to the position of the first front inclined groove (711) and a rear vertical groove (32) corresponding to the position of the first rear inclined groove (811); the front hook locking limit rod (72) penetrates through the first front inclined groove (711) and the front vertical groove (31) and is slidably connected to the first front inclined groove (711) and the front vertical groove (31). When the unlocking handle (4) is pulled to drive the unlocking cable assembly (92) to drive the unlocking connection seat (91) to move, the front hook unlocking drive member (71) drives the front hook locking limit rod (72) to move from one end of the front vertical groove (31) to the other end, so that the front hook locking limit rod (72) is disengaged from the front hook (5), realizing the unlocking of the front hook (5); the rear hook locking limit rod (82) penetrates through the first rear inclined groove (811) and the rear vertical groove (32) and is slidably connected to the first rear inclined groove (811) and the rear vertical groove (32). When the unlocking handle (4) is pulled to drive the unlocking cable assembly (92) to drive the unlocking connection seat (91) to move, the rear hook unlocking drive member (81) drives the rear hook locking limit rod (82) to move from one end of the rear vertical groove (32) to the other end, so that the rear hook locking limit rod (82) is disengaged from the rear hook (6), realizing the unlocking of the rear hook (6).

5. The child safety seat with any rotation angle linkage unlocking according to claim 2, wherein, the front hook (5) is provided with a front locking groove (51) for locking and cooperating with the front locking rod (11) and a front limiting portion (52) for abutting against the front hook locking limit rod (72), the rear hook (6) is provided with a rear locking groove (61) for locking and cooperating with the rear locking rod (12) and a rear limiting portion (62) for abutting against the rear hook locking limit rod (82), and both the front hook (5) and the rear hook (6) are hinged to the rotating disk (3).

6. The child safety seat with any rotation angle linkage unlocking according to claim 5, wherein, it further includes a front hook elastic member (10) and a rear hook elastic member (20). Two ends of the front hook elastic member (10) are respectively connected to the front hook (5) and the rotating disk (3), and two ends of the rear hook elastic member (20) are respectively connected to the rear hook (6) and the rotating disk (3).

7. The child safety seat with any rotation angle linkage unlocking according to claim 1, wherein, The gear positioning block (30) is provided with a first hinged part (301), and the base (2) is provided with a second hinged part (21) hinged to the first hinged part (301). When the unlocking handle (4) moves backward to push the gear positioning block (30) to rotate around the first hinged part (301), the gear positioning block (30) disengages from the rotating disc (3) to realize the unlocking of the rotating disc (3).

8. The child safety seat with unlockable linkage for any rotation angle according to claim 1, wherein, the width of the gear positioning block (30) in the up-down direction gradually increases from front to back; the rotating disc (3) is provided with a plurality of gear slots (34) arranged at intervals, and one of the plurality of gear slots (34) is inserted and locked with the gear positioning block (30).

9. The child safety seat with unlockable linkage for any rotation angle according to claim 1, wherein, a rotation positioning seat (22) is provided on the base (2), and the rotating disc (3) is provided with a mounting hole cooperating with the rotation positioning seat (22); the base (2) is further provided with a front hook (23) and a rear hook (24), and both the front hook (23) and the rear hook (24) cooperate with the edge of the rotating disc (3).

10. The child safety seat with unlockable linkage for any rotation angle according to any one of claims 1-9, wherein, the front and rear hook unlocking assembly (9) further includes a wire connecting member (96) movably connected to the base (2), the unlocking wire assembly (92) includes a wire (922) and a buckle (921) connected to the unlocking connection seat (91), the wire (922) is provided with a first terminal (9221) and a second terminal (9222), the wire connecting member (96) is provided with a mounting hole (961) connected to the first terminal (9221), the buckle (921) is arranged in a mounting groove (9211) connected to the second terminal (9222), when the unlocking handle (4) is pulled forward, the unlocking handle (4) drives the wire connecting member (96) to move, the wire connecting member (96) drives the wire (922) to move, the second terminal (9222) drives the buckle (921) to move, and the buckle (921) drives the unlocking connection seat (91) to move to finally unlock the seat body (1).

11. The child safety seat with unlockable linkage for any rotation angle according to claim 10, wherein, The rotating disk (3) is provided with a fixed seat (33). The fixed seat (33) is provided with a movable hole (331) slidably connected to the pull buckle (921) and a movable groove (332) slidably connected to the unlocking connection seat (91). One end of the pull buckle (921) is provided with a buckle (9212). The unlocking connection seat (91) is provided with a rotating groove (911) snap-connected and rotatably connected to the buckle (9212). An unlocking reset elastic member (95) is installed in the movable groove (332). Two ends of the unlocking reset elastic member (95) are respectively connected to the fixed seat (33) and the unlocking connection seat (91).

12. The child safety seat with any rotatable angle and linkage unlocking according to claim 10, wherein, a front end of the unlocking handle (4) is provided with an abutting surface (41), and the wire connecting member (96) is provided with an abutting platform (962). When the unlocking handle (4) is pulled forward, the abutting surface (41) abuts against the abutting platform (962).

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