Supporting leg structure and child safety seat

Abstract

The invention discloses a supporting leg structure and a child safety seat, and the supporting leg structure comprises a base which is provided with a boss and a drawing opening; the supporting assembly comprises supporting legs, a movable part and a first sliding block, the movable part is arranged in the drawing opening in a sliding mode, the supporting legs are hinged to the movable part, a first guide groove is formed in the movable part, and the first sliding block is arranged in the first guide groove in a sliding mode; the connecting rod assembly comprises a first connecting rod component and a second connecting rod component, the two ends of the first connecting rod component are hinged to the supporting leg and the first sliding block respectively, and the two ends of the second connecting rod component are movably connected with the boss and the first sliding block respectively. When the movable part retracts into the base, the second connecting rod component drives the first sliding block to slide, meanwhile, the first sliding block drives the supporting legs to rotate through the first connecting rod component, the supporting legs are folded and stored at the bottom of the base, folding and stretching synchronous movement is achieved, the situation that the supporting legs are not completely unfolded due to misoperation is avoided, and the safety performance of the seat is improved.

Description

Technical Field

[0001] The invention relates to the field of child seats, and in particular to a leg structure and a child safety seat. Background Art

[0002] In order to prevent the safety seat from tipping over, improve the seat stability, reduce forward displacement in the event of a collision, and thus improve safety, an adjustable height support rod is provided in front of the safety seat. The rod extends to the floor to adapt to the seat height of different models. Existing safety seats with support rods usually require users to operate corresponding mechanisms to fold the support rods, and to retract or extend the support rods. The mechanism structure is complex and prone to misoperation. It is easy for the support rod to not be fully extended, resulting in the support rod being suspended in the air, so that the safety seat cannot play its due protective role. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a leg structure and a child safety seat, wherein during operation, the support legs are folded and pulled out at the same time, thereby avoiding operating errors and improving the safety of the seat.

[0004] According to the first aspect of the present invention, the leg structure of the embodiment includes: a base, which is provided with a boss and a pull-out opening; a support assembly, including a leg, a movable part and a first slider, the movable part is slidably arranged at the pull-out opening, the leg is hinged to the movable part, the movable part is provided with a first guide groove, and the first slider is slidably arranged in the first guide groove; a connecting rod assembly, including a first connecting rod component and a second connecting rod component, the two ends of the first connecting rod component are respectively hinged to the leg and the first slider, and the two ends of the second connecting rod component are respectively movably connected to the boss and the first slider.

[0005] The leg structure according to the embodiment of the first aspect of the present invention 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 leg to rotate through the first connecting rod component, so that the leg is folded and stored at the bottom of the base, realizing synchronous folding and retracting movement, avoiding improper operation that causes the 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 supporting assembly further comprises a limiting member, and the limiting member abuts against the supporting leg.

[0007] According to some embodiments of the present invention, the base is provided with a guide member, the guide member is provided with 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 groove, and the storage groove matches the supporting leg.

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

[0010] According to some embodiments of the present invention, the first sliding block 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, the screw abuts against the end surface of the first guide groove, and the upper end of the second positioning block protrudes to form a clamping portion, and the clamping portion is clamped with 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 on the movable part, one end of the first connecting rod is hinged to the second connecting rod, the other end of the first connecting rod is hinged to the first slider, the other end of the first connecting rod is provided with a third guide groove, the third guide groove is slidably connected to the first slider, and the second connecting rod is hinged to the boss.

[0012] According to some embodiments of the present invention, the supporting leg is provided with a telescopic module, and the supporting leg is provided with a switch key, and the switch key is used to turn on or off the telescopic module.

[0013] According to some embodiments of the present invention, the movable part is hinged with an indicator part, the movable part is provided with a shell, the shell is provided with an indicator hole, the leg is provided with a shell, the indicator hole is arranged corresponding to the indicator part, the leg is slidably provided with a second slider, and the two ends of the second slider are respectively in contact with the indicator part and the switch key.

[0014] A child safety seat according to an embodiment of the second aspect of the present invention comprises the leg structure described in the embodiment of the first aspect of the present invention.

[0015] The child safety seat according to the second aspect of the embodiment of the present invention 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 supporting legs to rotate through the first connecting rod component, so that the supporting legs are folded and stored at the bottom of the base, realizing synchronous folding and retracting movement, avoiding improper operation that causes the supporting legs to not be fully unfolded, and improving the safety performance of the seat.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 An exploded view of a child safety seat according to a second embodiment of the present invention Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 A cross-sectional view of a leg structure according to an embodiment of the first aspect of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle; Figure 5 is a cross-sectional view of a child safety seat according to an embodiment of the second aspect of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0018] Description of reference numerals: Base 100, drawer opening 101, storage slot 102, boss 110; The supporting leg 200, the switch key 210, the housing 220, the indicating hole 221, the supporting block 230, the anti-slip pad 231, the indicating member 241, the third sliding block 242, and the limiting member 250; The movable member 310 , the first guide groove 311 , the rotating shaft 312 , the first sliding block 320 , the screw 321 , the second positioning block 322 , the clamping portion 323 , the first connecting rod component 331 , the second connecting rod component 332 , the first connecting rod 333 , the second connecting rod 334 , the third guide groove 335 , and the guide member 340 . DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Reference Figures 1 to 6 The leg structure of the first embodiment of the present invention includes: a base 100, which is provided with a boss 110 and a drawer opening 101; a support assembly, including a leg 200, a movable part 310 and a first slider 320, the movable part 310 is slidably arranged at the drawer opening 101, the leg 200 is hinged on the movable part 310, the movable part 310 is provided with a first guide groove 311, and the first slider 320 is slidably arranged in the first guide groove 311; 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 are respectively hinged to the leg 200 and the first slider 320, and the two ends of the second connecting rod component 332 are respectively movably connected to the boss 110 and the first slider 320.

[0024] When the movable part 310 is retracted into the base 100, the first slider 320 is driven to slide through the second connecting rod part 332, and at the same time, the first slider 320 drives the leg 200 to rotate through the first connecting rod part 331, so that the leg 200 is folded and stored at the bottom of the base 100, realizing synchronous folding and retracting movement. In addition, when the leg 200 is rotated from a folded state to a supported state, the movable part 310 driven by the leg 200 slides while the leg 200 rotates, so that the leg 200 is fully extended, thereby avoiding improper operation that causes the leg 200 to be not fully unfolded, thereby improving the safety performance of the seat.

[0025] It is understandable that, referring to Figures 1 to 3 The support assembly also includes a limiting member 250, which abuts against the support leg 200 to prevent the support leg 200 from being over-expanded, and at the same time provides a limit for the rotation stroke of the support leg 200 to improve the stability of the support leg 200.

[0026] It is understandable that, referring to Figure 2 and Figure 3The base 100 is provided with a guide member 340, and the guide member 340 has a second guide groove. The movable member 310 is slidably connected to the second guide groove. When the movable member 310 moves, it slides horizontally along the second guide groove to ensure that the movable member 310 slides smoothly.

[0027] It is understandable that, referring to Figure 2 The base 100 is provided with a storage groove 102, and the storage groove 102 matches the legs 200, so that when the legs 200 are folded, the legs 200 are stored in the storage groove 102, making the base 100 beautiful as a whole.

[0028] It is understandable that, referring to Figure 1 and Figure 2 A support block 230 is provided at the bottom end of the support leg 200 , and an anti-slip pad 231 is provided on the bottom side of the support block 230 to increase the friction between the support leg 200 and the carriage floor, prevent the base 100 from sliding, and improve the stability of the base 100 .

[0029] It is understandable that, 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 of which pass through the first guide slot 311. The first positioning block is provided with a screw 321, which abuts against the end surface of the first guide slot 311. The upper end of the second positioning block 322 is protruding to form a clamping portion, and the clamping portion 323 is clamped with the first guide slot 311. The first positioning block and the second positioning block 322 both pass through the first guide slot 311 to prevent the first slider 320 from rotating when moving along the first guide slot 311, thereby ensuring the stability of the first slider 320. Moreover, the screw 321 can be loosened, and the second positioning block 322 can be rotated to allow the clamping portion 323 to pass through the first guide slot 311, thereby facilitating the disassembly of the first slider 320.

[0030] For details, refer to Figure 3 and Figure 4 The second connecting rod component 332 includes a first connecting rod 333 and a second connecting rod 334. The first connecting rod 333 is hinged on the movable member 310. One end of the first connecting rod 333 is hinged to the second connecting rod 334. 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 is provided with a third guide groove 335. The third guide groove 335 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 slides along the third guide groove 335 at the same time, automatically adjusting the position between the first slider 320 and the first connecting rod 333 to avoid self-locking, and ensuring that the first slider 320 and the second connecting rod 334 component 332 move smoothly.

[0031] It is understandable that, referring to Figure 5 The leg 200 is provided with a telescopic module, and the leg 200 is provided with a switch key 210, and the switch key 210 is used to turn on or off the telescopic module. The telescopic module is turned on by the switch key 210 to extend or shorten the leg 200 to adapt to the seat height, or the telescopic module is turned off to keep the leg 200 stable.

[0032] It is understandable that, referring to Figure 1 , Figure 5 and Figure 6 The movable member 310 is hinged with an indicator member 241, and the movable member 310 is provided with a housing 220, and the housing 220 is connected to the movable member 310. The housing 220 is provided with an indicator hole 221, and the indicator hole 221 is arranged corresponding to the indicator member 241. The two ends of the second slider 242 are respectively in contact with the indicator member 241 and the switch key 210. When the switch key 210 is driven to unlock the telescopic module, the switch key 210 drives the second slider 242 to move, so that the second slider 242 drives the indicator member 241 to rotate. Different colors can be set on the side of the indicator member 241 facing the indicator hole 221, and the indicator member 241 rotates to change the color corresponding to the indicator hole 221, so as to know whether the telescopic module is opened or closed, which is convenient for users to understand whether the telescopic module is unlocked, thereby improving the user experience. The movable member 310 is provided with a rotating shaft 312, and the indicator member 241 is rotatably provided on the rotating shaft 312. A torsion spring is provided on the rotating shaft 312, and the indicator member 241 is driven to reset by the torsion spring. When the indicator member 241 is reset, the switch key 210 is driven to reset by the second slider 242, thereby automatically closing the telescopic module.

[0033] Reference Figure 1 and Figure 3 The child safety seat of the second embodiment of the present invention includes the leg structure of the first embodiment of the present invention. When the movable member 310 is retracted into the base 100, the first slider 320 is driven to slide through the second connecting rod member 332, and at the same time, the first slider 320 drives the leg 200 to rotate through the first connecting rod member 331, so that the leg 200 is folded and stored at the bottom of the base 100, and the folding and retracting synchronous movement is realized. In addition, when the leg 200 is rotated from the folded state to the supporting state, the movable member 310 driven by the leg 200 slides while the leg 200 rotates, so that the leg 200 is fully extended, so as to avoid improper operation causing the leg 200 to not be fully extended, thereby improving the safety performance of the seat.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Leg structure, characterized in that: include: A base, provided with a boss and a drawer opening; The support assembly includes a support leg, a movable member and a first slider, wherein the movable member is slidably disposed on the drawer opening, the support leg is hinged on the movable member, the movable member is provided with a first guide groove, and the first slider is slidably disposed in the first guide groove; The connecting rod assembly includes a first connecting rod component and a second connecting rod component, wherein the two ends of the first connecting rod component are respectively hinged to the support leg and the first slider, the second connecting rod component is hinged to the movable part, and the two ends of the second connecting rod 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 is provided with a second guide groove, and the movable member is slidably connected with the second guide groove.

3. The leg structure according to claim 2, characterized in that: The support assembly further comprises a limiting member, the limiting member is slidably connected to the guide member, the limiting member is provided with a limiting portion, and the limiting portion abuts against the supporting leg.

4. The leg structure according to claim 1, characterized in that: The base is provided with a storage groove, and the storage groove matches the supporting leg.

5. The leg structure according to claim 1, characterized in that: A support block is arranged at the bottom end of the supporting leg, and an anti-slip pad is arranged on the bottom side of the supporting block.

6. The leg structure according to claim 1, characterized in that: The first sliding block 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, the screw abuts against the end surface of the first guide groove, and the upper end of the second positioning block protrudes to form a clamping portion, and the clamping portion is clamped with 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 on the movable part, one end of the first connecting rod is hinged to the second connecting rod, the other end of the first connecting rod is hinged to the first slider, the other end of the first connecting rod is provided with a third guide groove, the third guide groove is slidably connected to the first slider, and the second connecting rod is hinged to the boss.

8. The leg structure according to claim 1, characterized in that: The supporting leg is provided with a telescopic module, and the supporting leg is provided with a switch key, and the switch key is used to open or close the telescopic module.

9. The leg structure according to claim 8, characterized in that: The movable part is hinged with an indicator part, the movable part is provided with a shell, the shell is provided with an indicator hole, the indicator hole is arranged corresponding to the indicator part, the support leg is slidably provided with a second slider, the two ends of the second slider are respectively in contact with the indicator part and the switch key.

10. A child safety seat, characterized in that: The invention comprises the leg structure according to any one of claims 1 to 9.

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