Quick buckling mechanism of child safety seat

Abstract

The utility model discloses a quick buckle mechanism of a child safety seat, which comprises a seat mechanism body and a quick buckle mechanism, and the quick buckle mechanism comprises a front buckle assembly and a rear buckle assembly which are arranged on the seat mechanism body. An unhooking connecting rod for controlling synchronous linkage of the front buckle assembly and the rear buckle assembly is arranged between the front buckle assembly and the rear buckle assembly, and the forward and backward movement of the unhooking connecting rod is used for switching the locking state or the unlocking state of the quick buckle mechanism. During locking, downward locking force is applied to the front lock hook and the rear lock hook at the same time, the front lock hook and the rear lock hook rotate anticlockwise, the front rotating block and the rear rotating block are pulled to rotate around the shaft through the first tension spring and the second tension spring, and the front rotating block and the rear rotating block are connected with the unhooking connecting rod and synchronously move backwards; and the front lock hook and the rear lock hook are completely locked by the front rotating block and the rear rotating block respectively, so that integrated and cooperative locking and releasing are realized, and the convenience and the safety are improved.

Description

Technical Field

[0001] The utility model specifically relates to a quick buckle mechanism of a child safety seat. Background Art

[0002] At present, society pays more and more attention to child safety seats, and their use is also becoming more and more popular. The requirements for child safety seats are getting higher and higher. In order to ensure the comfort and safety of children, higher requirements are also placed on our design.

[0003] Currently, the buckle mechanisms of child safety seats are mostly split, and need to be locked and released in sequence, and cannot be coordinated as an integrated whole, thus affecting the safety performance of the buckle mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a quick buckle mechanism for a child safety seat to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick buckle mechanism of a child safety seat, comprising a seat mechanism body and a quick buckle mechanism, the quick buckle mechanism comprising a front buckle assembly and a rear buckle assembly mounted on the seat mechanism body, a decoupling link for controlling the synchronous linkage of the front buckle assembly and the rear buckle assembly being arranged between the front buckle assembly and the rear buckle assembly;

[0006] The forward and backward movement of the unhooking link is used to switch the quick buckle mechanism between the locked and released states.

[0007] Preferably, a front bracket and a rear bracket are respectively provided on the front and rear of the seat mechanism body, and the front buckle assembly and the rear buckle assembly are respectively and correspondingly arranged in the front bracket and the rear bracket.

[0008] Preferably, the front buckle assembly includes a front locking hook and a front rotating block, and the front locking hook and the front rotating block are respectively arranged in the front bracket through a first pin shaft, and the front locking hook is provided with a front locking mouth facing the side of the front rotating block for cooperating with the front rotating block for locking, and the front locking hook and the front rotating block are connected by a first tension spring to achieve synchronous linkage.

[0009] Preferably, the rear buckle assembly includes a rear locking hook, a rear rotating block and a connecting rotating block, and the rear locking hook, the rear rotating block and the connecting rotating block are respectively arranged in the rear bracket through a second pin shaft, and the rear locking hook is provided with a rear locking mouth facing the side of the rear rotating block for cooperating and locking with the rear rotating block, and the rear locking hook and the rear rotating block are connected by a second tension spring to achieve synchronous linkage.

[0010] Preferably, third pin shafts are arranged at both the head and the tail of the decoupling connecting rod. Waist-shaped holes adapted to the third pin shafts are formed on the surfaces of the front rotating block and the connecting rotating block. The decoupling connecting rod is inserted into the waist-shaped holes through the third pin shafts, so that the decoupling connecting rod is respectively connected to the front rotating block and the connecting rotating block, realizing the synchronous linkage of the front buckle assembly, the rear buckle assembly and the decoupling connecting rod.

[0011] Preferably, a decoupling secondary lock handle for controlling the forward and backward movement of the decoupling connecting rod is connected to one end of the decoupling connecting rod.

[0012] Preferably, two front brackets, two rear brackets and two decoupling connecting rods are provided, and the two decoupling connecting rods are respectively arranged between each group of front brackets and rear brackets.

[0013] The technical effects and advantages of the present utility model: For the quick buckle mechanism of the child safety seat, by pulling the decoupling secondary lock handle forward, the two decoupling connecting rods move forward synchronously, driving the front rotating block and the rear rotating block to rotate synchronously around the first pin shaft and the second pin shaft respectively, and through the pulling of the first tension spring and the second tension spring, the front lock hook and the rear lock hook rotate synchronously until the front lock hook and the rear lock hook are disengaged from the constraints of the front rotating block and the rear rotating block, realizing disengagement. When locking, a downward locking force is applied to the front lock hook and the rear lock hook simultaneously. The front lock hook and the rear lock hook rotate counterclockwise, and through the pulling of the first tension spring and the second tension spring, the front rotating block and the rear rotating block rotate around the axis, and the front rotating block and the rear rotating block connected to the decoupling connecting rod move backward synchronously, so that the front rotating block and the rear rotating block completely lock the front lock hook and the rear lock hook respectively, realizing integrated and coordinated locking and release, and improving convenience and safety. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 It is a side view of the front buckle assembly of the present utility model;

[0016] Figure 3 It is a side view of the rear buckle assembly of the present utility model;

[0017] Figure 4 It is a schematic structural diagram of the quick buckle mechanism of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the decoupling connecting rod of the present utility model.

[0019] In the figure: 1. Seat mechanism body; 2. Disengagement link; 3. Front bracket; 4. Rear bracket; 5. Front locking hook; 6. Front rotating block; 7. Front locking notch; 8. First tension spring; 9. Rear locking hook; 10. Rear rotating block; 11. Connecting rotating block; 12. Rear locking notch; 13. Second tension spring; 14. Kidney-shaped hole; 15. Disengagement secondary lock handle. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] To facilitate the synchronous and coordinated locking or releasing of the quick snap structure, refer to Figure 1 As shown, it includes a seat mechanism body 1 and a quick snap mechanism. The quick snap mechanism includes a front snap component and a rear snap component installed on the seat mechanism body 1. A disengagement link 2 for controlling the synchronous linkage of the front snap component and the rear snap component is arranged between the front snap component and the rear snap component. Among them, the forward and backward movement of the disengagement link 2 is used to switch between the two states of locking or unlocking of the quick snap mechanism. By pulling the disengagement secondary lock handle 15 forward, the two disengagement links 2 move forward synchronously, driving the front rotating block 6 and the rear rotating block 10 to rotate synchronously around the first pin shaft and the second pin shaft respectively, and through the pulling of the first tension spring 8 and the second tension spring 13, the front locking hook 5 and the rear locking hook 9 rotate synchronously until the front locking hook 5 and the rear locking hook 9 are disengaged from the constraints of the front rotating block 6 and the rear rotating block 10, realizing disengagement. When locking, a downward locking force is applied to the front locking hook 5 and the rear locking hook 9 at the same time. The front locking hook 5 and the rear locking hook 9 rotate counterclockwise, pulling the front rotating block 6 and the rear rotating block 10 to rotate around the axis through the first tension spring 8 and the second tension spring 13. The front rotating block 6 and the rear rotating block 10 are connected to the disengagement link 2 and move backward synchronously, so that the front rotating block 6 and the rear rotating block 10 completely lock the front locking hook 5 and the rear locking hook 9 respectively, realizing integrated and coordinated locking and releasing.

[0022] To achieve the synchronous linkage of the front and rear snap components and the disengagement link 2, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a front bracket 3 and a rear bracket 4 are respectively arranged at the front and rear of the seat mechanism body 1, and the front buckle assembly and the rear buckle assembly are respectively arranged in the front bracket 3 and the rear bracket 4. The front buckle assembly includes a front locking hook 5 and a front rotating block 6. The front locking hook 5 and the front rotating block 6 are respectively arranged in the front bracket 3 through a first pin shaft. The front locking hook 5 is provided with a front locking port 7 for cooperating with the front rotating block 6 to lock on one side facing the front rotating block 6. The front locking hook 5 and the front rotating block 6 are connected by a first tension spring 8 to achieve synchronous linkage. The rear buckle assembly includes a rear locking hook 9, a rear rotating block 10 and an articulated rotating block 11. The rear locking hook 9, the rear rotating block 10 and the articulated rotating block 11 are respectively arranged in the rear bracket 4 through a second pin shaft. The rear locking hook 9 is provided with a rear locking port 12 for cooperating with the rear rotating block 10 to lock on one side facing the rear rotating block 10. The rear locking hook 9 and the rear rotating block 10 are connected by a second tension spring 13 to achieve synchronous linkage. Both ends of the decoupling link 2 are provided with third pin shafts. Waist-shaped holes 14 adapted to the third pin shafts are respectively formed on the surfaces of the front rotating block 6 and the articulated rotating block 11. The decoupling link 2 is inserted into the waist-shaped holes 14 through the third pin shafts, so that the decoupling link 2 is respectively connected to the front rotating block 6 and the articulated rotating block 11, realizing the synchronous linkage of the front buckle assembly, the rear buckle assembly and the decoupling link 2. One end of the decoupling link 2 is connected with a decoupling secondary lock handle 15 for controlling the front and rear movement of the decoupling link 2. The front bracket 3, the rear bracket 4 and the decoupling link 2 are all provided in two, and the two decoupling links 2 are respectively arranged between each group of the front bracket 3 and the rear bracket 4. The front locking hook 5 and the front rotating block 6 are respectively connected to the front bracket 3 through a first pin shaft. The front locking hook 5 is designed with a locking stop port, which can cooperate with the front rotating block 6 to lock. The front locking hook 5 and the front rotating block 6 are connected by a first tension spring 8, which can achieve synchronous linkage. The rear locking hook 9, the rear rotating block 10 and the articulated rotating block 11 are respectively connected to the rear bracket 4 through a second pin shaft; the rear locking hook 9 is also designed with a locking stop port, which can cooperate with the rear rotating block 10 to lock. The rear locking hook 9 and the rear rotating block 10 are connected by a second tension spring 13, and the rear rotating block 10 is connected to the articulated rotating block 11, which can achieve synchronous linkage. Waist-shaped holes 14 are respectively designed on the front rotating block 6 and the rear rotating block 10 in the front buckle assembly and the rear buckle assembly, and are respectively connected to the third pin shaft of the decoupling link 2, which can realize the synchronous linkage of the front and rear buckle assemblies and the decoupling link 2. The movement direction of the decoupling link 2: move forward and backward. The movement directions of the front locking hook 5 and the rear locking hook 9: rotate in two directions of clockwise and counterclockwise. Only after both the front hook lock and the rear locking hook 9 rotate in place, can the front rotating block 6 and the rear rotating block 10 rotate in place to lock the front locking hook 5 and the rear locking hook 9, and synchronously drive the decoupling link 2 to move to lock the whole mechanism. Single operation of the front locking hook 5 or the rear locking hook 9 cannot lock the whole mechanism, ensuring the safety of the connection.

[0023] When locking, a downward locking force is applied to the front locking hook 5 and the rear locking hook 9 simultaneously. The front locking hook 5 and the rear locking hook 9 rotate counterclockwise, pulling the front rotating block 6 and the rear rotating block 10 to rotate around the axis through the first tension spring 8 and the second tension spring 13. The front rotating block 6 and the rear rotating block 10 are connected to the decoupling link 2 and move backward synchronously, so that the front rotating block 6 and the rear rotating block 10 completely lock the front locking hook 5 and the rear locking hook 9 respectively.

[0024] When releasing, by pulling the decoupling secondary lock handle 15 forward, the two decoupling links 2 move forward synchronously, driving the front rotating block 6 and the rear rotating block 10 to rotate around the first pin shaft and the second pin shaft respectively, and through the pulling of the first tension spring 8 and the second tension spring 13, the front locking hook 5 and the rear locking hook 9 rotate synchronously until the front locking hook 5 and the rear locking hook 9 are disengaged from the constraints of the front rotating block 6 and the rear rotating block 10, realizing the disengagement.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention.

Claims

1. A quick buckle mechanism for a child safety seat, characterized in that: It comprises a seat mechanism body (1) and a quick buckle mechanism, wherein the quick buckle mechanism comprises a front buckle assembly and a rear buckle assembly mounted on the seat mechanism body (1), and a decoupling link (2) is provided between the front buckle assembly and the rear buckle assembly for controlling the synchronous linkage of the front buckle assembly and the rear buckle assembly; The forward and backward movement of the unhooking link (2) is used to switch the locking or releasing state of the quick buckle mechanism. A front bracket (3) and a rear bracket (4) are respectively arranged on the front and rear of the seat mechanism body (1). The front buckle assembly and the rear buckle assembly are respectively arranged in the front bracket (3) and the rear bracket (4). The front buckle assembly comprises a front locking hook (5) and a front rotating block (6). The front locking hook (5) and the front rotating block (6) are respectively arranged in the front bracket (3) through a first pin shaft. The front locking hook (5) is provided with a front locking opening on the side facing the front rotating block (6) for cooperating with the front rotating block (6) for locking. (7), the front locking hook (5) and the front rotating block (6) are connected by a first tension spring (8) to achieve synchronous linkage, the rear buckle assembly comprises a rear locking hook (9), a rear rotating block (10) and a connecting rotating block (11), the rear locking hook (9), the rear rotating block (10) and the connecting rotating block (11) are respectively arranged in the rear bracket (4) through a second pin shaft, the rear locking hook (9) is provided with a rear locking opening (12) for cooperating with the rear rotating block (10) for locking, on the side facing the rear rotating block (10), the rear locking hook (9) and the rear rotating block (10) are connected by a second tension spring (13) to achieve synchronous linkage.

2. The quick buckle mechanism of the child safety seat according to claim 1, characterized in that: The unhooking connecting rod (2) is provided with a third pin at both ends, and the surfaces of the front rotating block (6) and the connecting rotating block (11) are provided with a waist-shaped hole (14) adapted to the third pin. The unhooking connecting rod (2) is inserted into the waist-shaped hole (14) via the third pin, so that the unhooking connecting rod (2) is connected to the front rotating block (6) and the connecting rotating block (11) respectively, thereby realizing synchronous linkage of the front buckle assembly, the rear buckle assembly and the unhooking connecting rod (2).

3. The quick buckle mechanism of the child safety seat according to claim 1, characterized in that: One end of the unhooking connecting rod (2) is connected to a unhooking double-lock handle (15) for controlling the forward and backward movement of the unhooking connecting rod (2).

4. The quick buckle mechanism of the child safety seat according to claim 1, characterized in that: The front bracket (3), the rear bracket (4) and the decoupling connecting rod (2) are each provided in two numbers, and the two decoupling connecting rods (2) are respectively provided between each group of the front bracket (3) and the rear bracket (4).

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