Leg structure and child safety seat

Abstract

This invention discloses a leg support structure and a child safety seat, comprising: a base with a boss and a pull-out opening; a support assembly including a leg, a movable component, and a first slider, the movable component being slidably disposed in the pull-out opening, the leg being hinged to the movable component, the movable component having a first guide groove, and the first slider being slidably disposed within the first guide groove; and a linkage assembly including a first linkage component and a second linkage component, the two ends of the first linkage component being hinged to the leg and the first slider respectively, and the two ends of the second linkage component being movably connected to the boss and the first slider respectively. When the movable component is retracted into the base, the second linkage component drives the first slider to slide, and simultaneously the first slider drives the leg to rotate through the first linkage component, causing the leg to fold and retract at the bottom of the base, achieving synchronous folding and retraction movements, avoiding improper operation that results in the leg not being fully extended, and improving the safety performance of the seat.

Description

Technical Field

[0001] This invention relates to the field of child seats, and particularly to a leg support structure and a child safety seat. Background Technology

[0002] In existing car child safety seats, to prevent rollover, improve seat stability, and reduce forward displacement during a collision, thereby enhancing safety, an adjustable support bar is installed in front of the seat. This bar extends to the floor to accommodate different vehicle seat heights. However, existing safety seats with support bars typically require users to operate specific mechanisms to fold, retract, or extend the support bar. This mechanism is complex and prone to misoperation, easily resulting in the support bar not extending fully, leaving it suspended in the air and preventing the safety seat from providing its intended protective function. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a support leg structure and a child safety seat, in which the support leg folds and extends simultaneously during operation, avoiding operational errors and improving seat safety.

[0004] According to a first aspect of the present invention, a leg structure includes: a base having a boss and a pull-out opening; a support assembly including a leg, a movable member, and a first slider, wherein the movable member is slidably disposed in the pull-out opening, the leg is hinged to the movable member, the movable member has a first guide groove, and the first slider is slidably disposed in the first guide groove; and a linkage assembly including a first linkage component and a second linkage component, wherein both ends of the first linkage component are respectively hinged to the leg and the first slider, and both ends of the second linkage component are respectively movably connected to the boss and the first slider.

[0005] According to the first aspect of the present invention, the support leg structure has at least the following beneficial effects: when the movable part is retracted into the base, the first slider is driven to slide through the second connecting rod component, and at the same time, the first slider drives the support leg to rotate through the first connecting rod component, so that the support leg is folded and stored at the bottom of the base, realizing synchronous folding and telescopic movement, avoiding improper operation that causes the support leg to not be fully unfolded, and improving the safety performance of the seat.

[0006] According to some embodiments of the present invention, the movable member is provided with a housing, and the support assembly further includes a limiting member that abuts against the support leg.

[0007] According to some embodiments of the present invention, the base is provided with a guide member, the guide member has a second guide groove, and the movable member is slidably connected to the second guide groove.

[0008] According to some embodiments of the present invention, the base is provided with a storage slot, which matches the support leg.

[0009] According to some embodiments of the present invention, a support block is provided at the bottom end of the support leg, and an anti-slip pad is provided on the bottom side of the support block.

[0010] According to some embodiments of the present invention, the first slider is provided with a first positioning block and a second positioning block, both of which pass through the first guide groove. The first positioning block is provided with a screw, which abuts against the end face of the first guide groove. The upper end of the second positioning block protrudes to form a snap-fit ​​portion, which snaps into the first guide groove.

[0011] According to some embodiments of the present invention, the second connecting rod component includes a first connecting rod and a second connecting rod. The first connecting rod is hinged to the movable member. One end of the first connecting rod is hinged to the second connecting rod, and the other end of the first connecting rod is hinged to the first slider. A third guide groove is provided at the other end of the first connecting rod, and the third guide groove is slidably connected to the first slider. The second connecting rod is hinged to the boss.

[0012] According to some embodiments of the present invention, the outrigger is provided with a telescopic module and a switch button, which is used to open or close the telescopic module.

[0013] According to some embodiments of the present invention, the movable member is hinged to an indicator, the movable member is provided with a housing, the housing has an indicator hole, the support leg is provided with a housing, the indicator hole is correspondingly provided with the indicator, and the support leg is slidably provided with a second slider, the two ends of the second slider abutting against the indicator and the switch button respectively.

[0014] A child safety seat according to a second aspect of the present invention includes the leg support structure described in the first aspect of the present invention.

[0015] According to a second aspect embodiment of the present invention, the child safety seat has at least the following beneficial effects: when the movable part is retracted into the base, the first slider is driven to slide through the second linkage component, and at the same time, the first slider drives the outrigger to rotate through the first linkage component, so that the outrigger is folded and stored at the bottom of the base, realizing synchronous folding and telescopic movement, avoiding improper operation that causes the outrigger to not be fully extended, and improving the safety performance of the seat.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 An exploded view of a child safety seat according to a second aspect embodiment of the present invention.

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0020] Figure 3 This is a cross-sectional view of the leg structure according to a first aspect embodiment of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0022] Figure 5 This is a cross-sectional view of a child safety seat according to a second aspect embodiment of the present invention;

[0023] Figure 6 for Figure 5 A magnified view of a portion of point C.

[0024] Explanation of reference numerals in the attached figures:

[0025] Base 100, pull-out opening 101, storage slot 102, boss 110;

[0026] Support leg 200, switch button 210, housing 220, indicator hole 221, support block 230, anti-slip pad 231, indicator 241, third slider 242, limiter 250;

[0027] Movable part 310, first guide groove 311, rotating shaft 312, first slider 320, screw 321, second positioning block 322, snap-fit ​​part 323, first connecting rod assembly 331, second connecting rod assembly 332, first connecting rod 333, second connecting rod 334, third guide groove 335, guide part 340. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 6 The leg structure of the first aspect of the present invention includes: a base 100 having a boss 110 and a pull-out opening 101; a support assembly including a leg 200, a movable member 310 and a first slider 320, the movable member 310 being slidably disposed in the pull-out opening 101, the leg 200 being hinged to the movable member 310, the movable member 310 having a first guide groove 311, and the first slider 320 being slidably disposed in the first guide groove 311; and a connecting rod assembly including a first connecting rod component 331 and a second connecting rod component 332, the two ends of the first connecting rod component 331 being hinged to the leg 200 and the first slider 320 respectively, and the two ends of the second connecting rod component 332 being movably connected to the boss 110 and the first slider 320 respectively.

[0033] When the movable part 310 is retracted into the base 100, the first slider 320 is slid through the second connecting rod 332. At the same time, the first slider 320 drives the support leg 200 to rotate through the first connecting rod 331, so that the support leg 200 is folded and stored at the bottom of the base 100, realizing the synchronous movement of folding and extension. In addition, when the support leg 200 is rotated from the folded state to the support state, the movable part 310 slides at the same time as the support leg 200 rotates, so that the support leg 200 is fully extended, avoiding improper operation that causes the support leg 200 to not be fully extended, thus improving the safety performance of the seat.

[0034] Understandably, referring to Figures 1 to 3The support assembly also includes a limiting member 250, which abuts against the support leg 200 to prevent the support leg 200 from over-extension and to limit the rotation stroke of the support leg 200, thereby improving the stability of the support leg 200.

[0035] Understandably, referring to Figure 2 and Figure 3 The base 100 is provided with a guide 340, which has a second guide groove. The movable part 310 is slidably connected to the second guide groove. When the movable part 310 moves, it slides horizontally along the second guide groove to ensure that the movable part 310 slides smoothly.

[0036] Understandably, referring to Figure 2 The base 100 has a storage slot 102, which matches the support leg 200 so that when the support leg 200 is folded, it can be stored in the storage slot 102, making the base 100 look nice overall.

[0037] Understandably, referring to Figure 1 and Figure 2 The bottom of the outrigger 200 is provided with a support block 230, and the bottom side of the support block 230 is provided with an anti-slip pad 231 to increase the friction between the outrigger 200 and the carriage floor, prevent the base 100 from sliding, and improve the stability of the base 100.

[0038] Understandably, referring to Figure 3 and Figure 4 The first slider 320 is provided with a first positioning block and a second positioning block 322. Both the first positioning block and the second positioning block 322 pass through the first guide groove 311. The first positioning block is provided with a screw 321, which abuts against the end face of the first guide groove 311. The upper end of the second positioning block 322 protrudes to form a locking part 323, which locks into the first guide groove 311. The fact that both the first positioning block and the second positioning block 322 pass through the first guide groove 311 prevents the first slider 320 from rotating when moving along the first guide groove 311, ensuring the stability of the first slider 320. Furthermore, by loosening the screw 321 and rotating the second positioning block 322, the locking part 323 can pass through the first guide groove 311, facilitating the disassembly of the first slider 320.

[0039] Specifically, refer to Figure 3 and Figure 4The second connecting rod component 332 includes a first connecting rod 333 and a second connecting rod 334. The first connecting rod 333 is hinged to the movable member 310. One end of the first connecting rod 333 is hinged to the second connecting rod 334, and the other end of the first connecting rod 333 is hinged to the first slider 320. The other end of the first connecting rod 333 has a third guide groove 335, which is slidably connected to the first slider 320. The second connecting rod 334 is hinged to the boss 110. When the first connecting rod 333 and the second connecting rod 334 rotate, the first slider 320 simultaneously slides along the third guide groove 335, automatically adjusting the position between the first slider 320 and the first connecting rod 333 to avoid self-locking and ensure smooth movement of the first slider 320 and the second connecting rod 334 component 332.

[0040] Understandably, referring to Figure 5 The outrigger 200 is equipped with a telescopic module and a switch 210, which is used to open or close the telescopic module. By opening the telescopic module with the switch 210, the outrigger 200 can be extended or shortened to adapt to the seat height, or the telescopic module can be closed to keep the outrigger 200 stable.

[0041] Understandably, referring to Figure 1 , Figure 5 and Figure 6 The movable component 310 is hinged to an indicator 241. The movable component 310 is equipped with a housing 220, which is connected to the movable component 310. The housing 220 has an indicator hole 221, which corresponds to the indicator 241. The two ends of the second slider 242 abut against the indicator 241 and the switch button 210, respectively. When the switch button 210 is driven to unlock the telescopic module, the switch button 210 drives the second slider 242 to move, thereby driving the indicator 241 to rotate. Different colors can be set on the side of the indicator 241 facing the indicator hole 221. By rotating the indicator 241, the color corresponding to the indicator hole 221 changes, indicating whether the telescopic module is open or closed. This facilitates understanding whether the telescopic module is unlocked and improves the user experience. The movable part 310 is provided with a rotating shaft 312, and the indicator 241 is rotatably mounted on the rotating shaft 312. A torsion spring is provided on the rotating shaft 312. The torsion spring drives the indicator 241 to reset. When the indicator 241 is reset, the second slider 242 drives the switch button 210 to reset, thereby automatically closing the telescopic module.

[0042] Reference Figure 1 and Figure 3The child safety seat according to a second aspect embodiment of the present invention includes the support leg structure of the first aspect embodiment of the present invention. When the movable member 310 is retracted into the base 100, the first slider 320 is slid through the second connecting rod member 332. At the same time, the first slider 320 drives the support leg 200 to rotate through the first connecting rod member 331, so that the support leg 200 is folded and stored at the bottom of the base 100, realizing synchronous folding and extension. In addition, when the support leg 200 is rotated from the folded state to the supported state, the movable member 310 slides while the support leg 200 rotates, so that the support leg 200 is fully extended, avoiding improper operation that causes the support leg 200 to not be fully extended, thereby improving the safety performance of the seat.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A leg structure, characterized in that, include: The base features a boss and a pull-out opening. The support assembly includes a support leg, a movable part, and a first slider. The movable part is slidably disposed on the pull-out opening, the support leg is hinged to the movable part, the movable part has a first guide groove, and the first slider is slidably disposed in the first guide groove. The linkage assembly includes a first linkage component and a second linkage component. The two ends of the first linkage component are respectively hinged to the support leg and the first slider. The second linkage component is hinged to the movable member. The two ends of the second linkage component are respectively movably connected to the boss and the first slider.

2. The leg structure according to claim 1, characterized in that, The base is provided with a guide member, the guide member has a second guide groove, and the movable member is slidably connected to the second guide groove.

3. The leg structure according to claim 2, characterized in that, The support assembly further includes a limiting member, which is slidably connected to the guide member. The limiting member is provided with a limiting part, which abuts against the support leg.

4. The leg structure according to claim 1, characterized in that, The base has a storage slot that matches the support leg.

5. The leg structure according to claim 1, characterized in that, The bottom end of the support leg is provided with a support block, and the bottom side of the support block is provided with an anti-slip pad.

6. The leg structure according to claim 1, characterized in that, The first slider is provided with a first positioning block and a second positioning block. Both the first positioning block and the second positioning block pass through the first guide groove. The first positioning block is provided with a screw, which abuts against the end face of the first guide groove. The upper end of the second positioning block protrudes to form a locking part, which locks into the first guide groove.

7. The leg structure according to claim 1, characterized in that, The second connecting rod component includes a first connecting rod and a second connecting rod. The first connecting rod is hinged to the movable member. One end of the first connecting rod is hinged to the second connecting rod, and the other end of the first connecting rod is hinged to the first slider. The other end of the first connecting rod has a third guide groove, which is slidably connected to the first slider. The second connecting rod is hinged to the boss.

8. The leg structure according to claim 1, characterized in that, The outrigger is equipped with a telescopic module and a switch button, which is used to turn the telescopic module on or off.

9. The leg structure according to claim 8, characterized in that, The movable component is hinged to an indicator, and the movable component is provided with a housing. The housing has an indicator hole, which is corresponding to the indicator. The support leg is slidably provided with a second slider, and the two ends of the second slider abut against the indicator and the switch button, respectively.

10. A child safety seat, characterized in that, It includes the leg structure as described in any one of claims 1 to 9.

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