Supporting leg folding mechanism of child safety seat

Abstract

The utility model discloses a supporting leg folding mechanism of a child safety seat, which relates to the field of safety seats, and adopts the technical scheme that the supporting leg folding mechanism comprises a bracket, a supporting leg and a limiting hook, the support comprises a fixed frame and a sliding frame, the fixed frame is provided with a sliding rail, the sliding rail is matched with the sliding frame, and a clamping table is arranged on the front section of the sliding rail; the front end of the sliding frame is hinged to the upper ends of the supporting legs. The middle part of the limiting hook is hinged to the sliding frame; the rear end of the limiting hook is arranged corresponding to the sliding rail, and a torsional spring is arranged at the hinged position of the limiting hook and the sliding frame. The upper part of the supporting leg is provided with a boss corresponding to the front end of the limiting hook; after the supporting legs are unfolded, the relative positions of the sliding frame and the fixed frame can be automatically locked, the sliding frame and the fixed frame are prevented from loosening, and the extending state of the supporting legs can be locked.

Description

Technical Field

[0001] This utility model relates to the field of child safety seats, and in particular to a child safety seat support leg retraction mechanism. Background Technology

[0002] Child safety seats are seats used for children to ride in cars. Since children's limbs are smaller than adults', each part of the seat needs to be set to a suitable size. Among them, the support leg structure is designed to support the child's feet. Currently, the support leg structure is disclosed in patent document CN114435205A, which is an adaptive child seat support leg rotation outer cover structure and its working method. However, this solution has some problems in actual use. After it extends and retracts laterally, it is not easy to lock the extended structure in a locked state. As a result, it may retract during the support process and fail to provide strong support. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a child safety seat support leg retraction mechanism, which can automatically lock the relative positions of the sliding frame and the fixed frame after the support leg is extended, preventing the sliding frame and the fixed frame from becoming loose and locking the extended state.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a child safety seat support leg retraction mechanism, including a bracket, a support leg and a limiting hook;

[0005] The bracket includes a fixed frame and a sliding frame. The fixed frame is provided with a slide rail, the slide rail is adapted to the sliding frame, and the front end of the slide rail is provided with a locking platform.

[0006] The front end of the sliding frame is hinged to the upper end of the support leg;

[0007] The middle part of the limiting hook is hinged to the sliding frame;

[0008] The rear end of the limiting hook is provided corresponding to the slide rail, and a torsion spring is provided at the hinge of the limiting hook and the sliding frame.

[0009] The upper part of the support leg is provided with a boss corresponding to the front end of the limiting hook;

[0010] When the support leg is closed relative to the bracket, the boss approaches and pushes the front end of the limiting hook, causing the rear end of the limiting hook to move away from the slide rail and the locking platform;

[0011] When the support leg is extended relative to the bracket, the protrusion moves away from the front end of the limiting hook, and the torsion spring drives the limiting hook downward toward the slide rail and the locking platform.

[0012] This solution uses limit hooks to control whether the sliding frame and the fixed frame can retract.

[0013] When the support leg is closed relative to the bracket, the boss approaches and pushes the front end of the limiting hook, causing the rear end of the limiting hook to move away from the slide rail and the locking platform. Because the boss presses down on the front end of the limiting hook, the rear end of the limiting hook does not contact the locking platform. Therefore, the sliding frame can retract relative to the fixed frame at this time to achieve the storage effect.

[0014] When the support leg is extended relative to the bracket, the boss moves away from the front end of the limiting hook, and the torsion spring drives the limiting hook downwards towards the slide rail and the locking platform. Without the boss pressing down on the front end of the limiting hook, the limiting hook swings under the action of the torsion spring, and the rear end of the limiting hook approaches and abuts against the locking platform. This prevents the sliding frame from retracting relative to the fixed frame, thus avoiding the sliding frame retracting backwards when the support leg is extended.

[0015] Preferably, the fixing frame includes two side plates with slide rails disposed on their inner sides. The slide rails are grooves disposed on the inner sides of the side plates, and the two side plates are fixed relative to each other by a connecting plate. This results in more stable and smooth sliding, and a more secure relative position between the two side plates.

[0016] Preferably, the upper end of the support leg is rotatably engaged with the front end of the sliding frame via a pivot. This allows the support leg to swing more smoothly relative to the sliding frame.

[0017] Preferably, the limiting hook is a sheet-like structure attached to the side wall of the sliding frame. This occupies less space and has a more compact structure.

[0018] Preferably, the limiting hook is hinged to the sliding frame via an anchor. This provides a more stable and secure fixation.

[0019] Preferably, the rear end of the limiting hook is provided with a downward-facing locking hook to facilitate adaptation to the locking platform.

[0020] Preferably, the locking platform is the front edge of the slide rail. Directly utilizing the front end of the slide rail and the locking platform for positioning results in a simpler and more convenient structure.

[0021] Preferably, the front end of the limiting hook extends towards the side wall of the boss. This facilitates the boss driving the front end of the limiting hook to swing.

[0022] The beneficial effects of this utility model are:

[0023] This design allows the sliding frame and fixed frame to slide relative to each other, enabling the sliding frame to extend further forward for better leg support. When retracted, it can fully retract under the seat, minimizing leg discomfort. Furthermore, the design automatically locks the sliding frame and fixed frame in place when the support leg is extended, preventing them from becoming loose. Conversely, the lock automatically releases when the support leg is retracted relative to the support frame, allowing for easy retraction of the sliding frame. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only five of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the concealed decorative cover according to an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the hidden fixing frame according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the support leg according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the fixing frame according to an embodiment of the present utility model;

[0030] Among them, 1. bracket; 2. fixed frame; 3. sliding frame; 4. slide rail; 5. carding platform; 6. support leg; 7. limit hook; 8. torsion spring; 9. boss; 10. decorative cover. Detailed Implementation

[0031] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0032] Example

[0033] like Figure 1 and Figure 2As shown, a child safety seat support leg folding mechanism includes a bracket 1, a support leg 6, and a limiting hook 7; the bracket 1 includes a fixed frame 2 and a sliding frame 3, the fixed frame 2 is provided with a slide rail 4, the slide rail 4 is adapted to the sliding frame 3, and the front end of the slide rail 4 is provided with a locking platform 5; the front end of the sliding frame 3 is hinged to the upper end of the support leg 6, and a decorative cover 10 is provided at the hinge.

[0034] Combination Figure 3 As shown, the middle part of the limiting hook 7 is hinged to the sliding frame 3; the rear end of the limiting hook 7 is set corresponding to the slide rail 4, and an external fixing block is set on the outside of the limiting hook 7. The external fixing block is set on the sliding frame 3. In order to protect the limiting hook 7, a torsion spring 8 is set at the hinge between the limiting hook 7 and the sliding frame 3.

[0035] Combination Figure 4 As shown, the upper part of the support leg 6 is provided with a protrusion 9 corresponding to the front end of the limiting hook 7; when the support leg 6 is closed relative to the bracket 1, the protrusion 9 approaches and pushes the front end of the limiting hook 7, so that the rear end of the limiting hook 7 moves away from the slide rail 4 and the locking platform 5; when the support leg 6 is unfolded relative to the bracket 1, the protrusion 9 moves away from the front end of the limiting hook 7, and the torsion spring 8 drives the limiting hook 7 downward to approach the slide rail 4 and the locking platform 5.

[0036] This solution uses a limit hook 7 to control whether the sliding frame 3 and the fixed frame 2 can retract.

[0037] When the support leg 6 is closed relative to the bracket 1, the boss 9 approaches and pushes the front end of the limiting hook 7, causing the rear end of the limiting hook 7 to move away from the slide rail 4 and the locking platform 5. Because the boss 9 presses down on the front end of the limiting hook 7, the rear end of the limiting hook 7 does not contact the locking platform 5. Therefore, the sliding frame 3 can retract relative to the fixed frame 2 at this time to achieve the storage effect.

[0038] When the support leg 6 is extended relative to the bracket 1, the boss 9 moves away from the front end of the limiting hook 7, and the torsion spring 8 drives the limiting hook 7 downward towards the slide rail 4 and the locking platform 5. Without the downward pressure of the boss 9 on the front end of the limiting hook 7, the limiting hook 7 swings under the action of the torsion spring 8, and the rear end of the limiting hook 7 approaches and abuts against the locking platform 5. This prevents the sliding frame 3 from retracting relative to the fixed frame 2, thus avoiding the situation where the sliding frame 3 retracts backward when the support leg 6 is extended.

[0039] Combination Figure 5 As shown, the fixing frame 2 includes two side plates with the slide rail 4 disposed on their inner sides. The slide rail 4 is a sliding groove disposed on the inner side of the side plate. The two side plates are fixed relative to each other by a connecting plate. The sliding is more stable and smooth, and the relative position of the two side plates is more secure.

[0040] The upper end of the support leg 6 is rotatably engaged with the front end of the sliding frame 3 via a pivot. The support leg 6 swings more smoothly relative to the sliding frame 3.

[0041] The limiting hook 7 is a sheet-like structure attached to the side wall of the sliding frame 3. It occupies less space and has a more compact structure.

[0042] The limiting hook 7 is hinged to the sliding frame 3 via an anchor, resulting in a more stable and secure fixation.

[0043] The rear end of the limiting hook 7 is provided with a downward-facing locking hook to facilitate adaptation to the locking platform 5.

[0044] The locking platform 5 is the front end edge of the slide rail 4. The locking platform 5 directly cooperates with the front end of the slide rail 4 to limit the movement, making the structure simpler and more convenient.

[0045] The front end of the limiting hook 7 extends toward the side wall of the boss 9. This allows the boss 9 to drive the front end of the limiting hook 7 to swing.

[0046] The beneficial effects of this utility model are:

[0047] In this design, the sliding frame 3 and the fixed frame 2 can slide relative to each other, allowing the sliding frame 3 to extend further forward and better support the leg 6. When retracted, it can retract more fully under the seat, avoiding interference with the legs. Furthermore, when the support leg 6 is extended, the sliding frame 3 and the fixed frame 2 are automatically locked in relative position to each other, preventing them from becoming loose. And when the support leg 6 is retracted relative to the bracket 1, the lock between the sliding frame 3 and the fixed frame 2 is automatically released, allowing the sliding frame 3 to be easily retracted relative to the fixed frame 2.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A child safety seat support leg folding mechanism, characterized by, The support (1) comprises a fixed frame (2) and a sliding frame (3), the fixed frame (2) is provided with a sliding rail (4), the sliding rail (4) is matched with the sliding frame (3), the front section of the sliding rail (4) is provided with a clamping table (5); The front end of the sliding frame (3) is hingedly arranged with the upper end of the supporting leg (6); The middle part of the limiting hook (7) is hingedly arranged on the sliding frame (3); The rear end of the limiting hook (7) is arranged corresponding to the sliding rail (4), and the hinge part of the limiting hook (7) and the sliding frame (3) is provided with a torsion spring (8); The upper part of the supporting leg (6) is provided with a boss (9) corresponding to the front end of the limiting hook (7); When the supporting leg (6) is folded relative to the support (1), the boss (9) is close to and pushes the front end of the limiting hook (7), so that the rear end of the limiting hook (7) is away from the sliding rail (4) and the clamping table (5); When the supporting leg (6) is unfolded relative to the support (1), the boss (9) is away from the front end of the limiting hook (7), and the torsion spring (8) drives the limiting hook (7) to be close to the sliding rail (4) and the clamping table (5). The fixed frame (2) comprises two side plates provided with the sliding rail (4) on the inner side, the sliding rail (4) is a sliding groove provided on the inner side of the side plate, and the two side plates are relatively fixed by a connecting plate.

2. A child safety seat support leg folding mechanism according to claim 1 wherein: The upper end of the supporting leg (6) is rotationally matched with the front end of the sliding frame (3) through a rotating shaft.

3. A child safety seat support leg folding mechanism according to claim 1 wherein: The limiting hook (7) is a sheet structure attached to the side wall of the sliding frame (3).

4. A child safety seat support leg folding mechanism according to claim 1, wherein: The limiting hook (7) is hingedly arranged on the sliding frame (3) through an anchor.

5. A child safety seat support leg folding mechanism according to claim 1 wherein: The rear end of the limiting hook (7) is provided with a clamping hook downward.

6. A child safety seat support leg folding mechanism according to claim 1 wherein: The clamping table (5) is the front end of the sliding rail (4).

7. A child safety seat support leg folding mechanism according to claim 1 wherein: The front end of the limiting hook (7) extends to the side wall of the boss (9) to form a hook.

8. A child safety seat support leg folding mechanism according to claim 1, wherein: ​

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