A safety seat support assembly

Abstract

The present disclosure relates to the technical field of safety seats, and particularly relates to a safety seat support assembly, which solves the problems that the support leg is easy to pinch hands when rotating and the support leg is not smooth enough during the process of stretching out and retracting to the base, a seat support assembly, comprising a base and a support leg, the base and the support leg are connected, the support leg can rotate around the base, a protection mechanism is arranged at the connection between the support leg and the base, and the protection mechanism is used for preventing hands from being pinched; the base comprises a first connecting piece and a second connecting piece, the second connecting piece is hinged with the support leg, a working groove is arranged at the bottom of the first connecting piece, a slide rail is arranged in the working groove, the second connecting piece is partially arranged on the slide rail, the second connecting piece can slide along the slide rail, a plurality of first working holes are arranged on the slide rail, and balls are arranged in the first working holes.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of safety seats, in particular to a safety seat support assembly. BACKGROUND

[0002] The earliest child safety seat was born in 1963, which was designed and produced by Volvo Company. The inspiration for developing and designing the child safety seat came from the astronaut seat in the spacecraft. This seat can withstand the huge force generated when the space capsule takes off and lands, thereby protecting the astronauts from injury. According to this principle, Volvo Company proposed the concept of a rear-facing child safety seat.

[0003] According to the statistics of the World Health Organization, when a traffic accident occurs, the likelihood of fatal injury to children can be greatly reduced if a child safety seat is used correctly: the likelihood of fatal injury to infants under 1 year of age can be reduced by 71%, the likelihood of fatal injury to children aged 1-4 years can be reduced by 54%, and the likelihood of fatal injury to children aged 4-7 years can be reduced by 59%. It can be seen that the safety seat plays a crucial role in child safety protection.

[0004] A child safety seat includes a seat and a base. The seat is arranged on the base, and the base is fixedly installed on the rear seat of a car. The base is provided with a support leg, which is an anti-tipping device of the child safety seat. The support leg of the base of the child safety seat on the market is generally in a folded state when idle or packaged for transportation. When used and installed, the support leg needs to be opened so that the support leg of the base is in a vertical state. When the support leg is rotated and folded or opened, the gap at the rotating connection between the base and the support leg of many safety seats changes with the rotation of the support leg. If not careful, the user's fingers located at the gap position will be pinched, causing accidental shearing injury. In addition, the support leg of the seat on the market sometimes does not stretch to the base smoothly, causing a jamming problem, which brings a bad experience to the user. Therefore, it is urgent to develop a safety seat support assembly to solve the problems that the existing support leg is easy to pinch the hand when rotating, and the support leg is not smooth enough when stretching to the base. SUMMARY

[0005] In view of the problems that the support leg is easy to pinch the hand when rotating and the support leg is not smooth enough when stretching to the base in the prior art, the present application provides a safety seat support assembly which is safe to use and reliable in work.

[0006] The technical scheme adopted by the present disclosure to solve the above technical problems is: a seat support assembly, comprising a base and a support leg, the base and the support leg are connected, the support leg can rotate around the base, a protection mechanism is arranged at the connection between the support leg and the base, the protection mechanism is used for preventing hand clamping; the base comprises a first connecting piece and a second connecting piece, the second connecting piece is hinged with the support leg, a working groove is arranged at the bottom of the first connecting piece, a sliding rail is arranged in the working groove, the second connecting piece is partially arranged on the sliding rail and slides along the sliding rail, a plurality of first working holes are arranged on the sliding rail, balls are arranged in the first working holes, a third connecting piece is arranged between the first connecting piece and the second connecting piece, a plurality of second working holes are arranged on the third connecting piece, and balls are arranged in the second working holes.

[0007] Compared with the prior art, the seat support assembly has the beneficial effects that: the protection mechanism is arranged at the connection between the support leg and the base, so that hand clamping can be prevented; the first working holes and the second working holes are provided with balls, so that the second connecting piece can slide more smoothly in the first connecting piece, and clamping and noise can be avoided.

[0008] Further, the sliding rail is provided with a first protrusion or a second groove, a corresponding position of the first connecting piece is provided with a first groove or a second protrusion, the first protrusion and the first groove are connected in a matched mode, or the second groove and the second protrusion are connected in a matched mode.

[0009] Further, the third connecting piece is provided with a buckle, the third connecting piece is clamped with the first connecting piece, and a gap is arranged between the third connecting piece and the second connecting piece, so as to prevent the distance between the second connecting piece and the third connecting piece from being too close and the friction from being too large when relative sliding occurs.

[0010] Further, the first connecting piece and the second connecting piece are made of metal, and the sliding rail and the third connecting piece are made of polyamide fiber.

[0011] Further, a limiting mechanism is arranged at an end of the second connecting piece away from the support leg, and the limiting mechanism is used for limiting the sliding of the second connecting piece towards the support leg.

[0012] Further, a locking mechanism is arranged at an end of the second connecting piece close to the support leg, and the locking mechanism is used for locking the position of the second connecting piece to prevent the second connecting piece from sliding away from the support leg.

[0013] Furthermore, the locking mechanism includes a telescopic member, an elastic member, and a fourth connecting member. There are two fourth connecting members, which are respectively disposed on both sides of the second connecting member. Each fourth connecting member is provided with a third protrusion and a fourth protrusion. The third protrusion is used to connect the telescopic member, and the fourth protrusion is used to connect the elastic member.

[0014] Furthermore, the fourth connector includes a first end and a second end, the second end being closer to the support leg than the first end. The first end is provided with a first slot, which engages with the second connector to limit the second connector. The second end is provided with a pressing member, which controls the opening and closing of the first end.

[0015] Furthermore, the second connector is provided with a support frame, and the support frame has second slots on both sides. The fourth connector is disposed on both sides of the second connector through the second slots.

[0016] Furthermore, the protective mechanism is mounted on the support frame.

[0017] Furthermore, the support leg includes an outer shell and an inner core, the inner core extending and retracting within the outer shell, the outer shell being made of plastic and the inner core being made of metal.

[0018] Furthermore, the outer shell includes a first shell and a second shell, with the first shell located below the second shell and the first shell and the second shell being snapped together. The inner core has a hollow structure, and the surface of the inner core is provided with a plurality of limiting grooves. A positioning mechanism is provided between the outer shell and the inner core. The limiting grooves and the positioning mechanism cooperate with each other to limit and fix the position of the inner core.

[0019] Furthermore, the base includes a protective shell, which is disposed outside the support frame. A third working hole is provided on each side of the protective shell, and the position and size of the third working hole are adapted to the position and size of the pressing member.

[0020] Furthermore, the protective shell is provided with a first inner cavity and a second inner cavity. The first inner cavity is located above the second inner cavity. The telescopic member and the elastic member are located in the first inner cavity, and the end of the second connecting member near the support leg is located in the second inner cavity.

[0021] Furthermore, the base also includes a mounting ring and a support plate. The mounting ring is provided with mounting holes, including a first mounting hole and a second mounting hole. The first mounting hole is used to connect to the support plate, which is located below the mounting ring. The second mounting hole is used to connect to the bottom of the seat.

[0022] Further, the outer periphery of the mounting ring is provided with a protruding structure, the protruding structure is detachably connected with the first connecting piece, and the support plates are two, and the two support plates are respectively located below the sides of the protruding structure. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be regarded as a limitation on the scope of the application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 is one of the structural schematic diagrams of a seat support assembly of the present disclosure;

[0025] Figure 2 is one of the structural schematic diagrams of a seat support assembly of the present disclosure;

[0026] Figure 3 is a structural schematic diagram of a third connecting piece of the present disclosure;

[0027] Figure 4 is a structural schematic diagram of a sliding rail and a first connecting piece of the present disclosure;

[0028] Figure 5 is one of the structural schematic diagrams of a seat support assembly of the present disclosure;

[0029] Figure 6 is a partial enlarged view of D of the present disclosure; Figure 5

[0030] Figure 7 is one of the structural schematic diagrams of a seat support assembly of the present disclosure;

[0031] Figure 8 is a partial enlarged view of F of the present disclosure; Figure 7

[0032] Figure 9 is one of the structural schematic diagrams of a seat support assembly of the present disclosure;

[0033] Figure 10 is a structural schematic diagram of a fourth connecting piece of the present disclosure;

[0034] Figure 11 is a structural schematic diagram of a protective shell of the present disclosure.

[0035] Explanation of Reference Signs:

[0036] ​​1, first connecting piece; 2, support plate; 3, support leg; 4, mounting ring; 5, convex structure; 6, second mounting hole; 7, working groove; 8, sliding rail; 9, second connecting piece; 10, third connecting piece; 11, buckle; 12, second working hole; 13, fourth connecting piece; 14, shell; 15, inner core; 16, positioning mechanism; 17, limiting groove; 18, protection mechanism; 19, first clamping groove; 20, telescopic piece; 21, first protrusion; 22, pressing piece; 23, second clamping groove; 24, limiting inner recess; 25, third working hole; 26, first inner cavity. DETAILED DESCRIPTION

[0037] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0038] In the description of the present application, if the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or impliedly indicating the number of indicated technical features or impliedly indicating the order of the indicated technical features.

[0039] Those skilled in the art should understand that in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the present application.

[0040] An embodiment of the present disclosure discloses a seat support assembly, such as Figures 1-11As shown, including the base and support leg 3, base and support leg 3 rotating connection, the base includes a first connecting piece 1 and the second connecting piece 9, the second connecting piece 9 and support leg 3 hinged, the first connecting piece 1 bottom is provided with working groove 7, working groove 7 is provided with slide rail 8, in particular, working groove 7 is U-shaped groove, the bottom surface of slide rail 8 is provided with first protrusion 21, the corresponding position of first connecting piece 1 is provided with first recess, first protrusion 21 and first recess are connected. The second connecting piece 9 is partially arranged on the slide rail 8, the second connecting piece 9 can slide along the slide rail 8, the slide rail 8 is provided with a plurality of first working holes, the first working hole is provided with a ball, when the second connecting piece 9 slides along the slide rail, the ball has good lubricating effect, greatly reducing the friction between the second connecting piece 9 and the slide rail 8. It should be noted that, in order to further make the second connecting piece 9 slide on the slide rail 8 more smoothly, the slide rail 8 is made of polyamide fiber, which has good wear resistance, low friction coefficient, good heat resistance and strong noise reduction capacity, and has good lubricating and noise reduction effect. At the same time, in order to make the first connecting piece 1 and the second connecting piece 9 have excellent mechanical properties, the first connecting piece 1 and the second connecting piece 9 are both made of metal material.

[0041] The first connecting piece 1 and the second connecting piece 9 are provided with a third connecting piece 10, the third connecting piece 10 is provided with a plurality of second working holes 12, the second working hole 12 is provided with a ball, the setting of the ball makes the second connecting piece 9 slide in the first connecting piece 1 more smoothly. In particular, the third connecting piece 10 is provided with a buckle 11, the third connecting piece 10 and the first connecting piece 1 are clamped, the third connecting piece 10 and the second connecting piece 9 are provided with a gap, the gap is set to prevent the second connecting piece 9 and the third connecting piece 10 from being too close, and the friction is large when relative sliding occurs, and space is also reserved for the ball. As a preferred embodiment, the third connecting piece 10 is made of polyamide fiber, so that the friction is smaller and more lubricating when the second connecting piece 9 slides in the first connecting piece 1.

[0042] The second connecting piece 9 is provided with a limiting mechanism at the end away from the support leg 3, the limiting mechanism is used for limiting the sliding of the second connecting piece 9 to the support leg 3. In particular, the limiting mechanism refers to the end of the second connecting piece 9 away from the support leg 3, circular holes are opened on both sides of the end, bolts are arranged in the circular holes, and the corresponding position of the first connecting piece 1 is provided with a limiting inner recess 24. When the second connecting piece 9 slides to the predetermined position in the direction of the support leg 3, the bolt will be clamped in the limiting inner recess 24, so as to achieve the purpose of limiting.

[0043] The second connecting piece 9 is provided with a locking mechanism near one end of the supporting leg 3, and the locking mechanism is used for locking the position of the second connecting piece 9 and preventing the second connecting piece 9 from sliding away from the supporting leg 3. Specifically, the locking mechanism comprises a telescopic piece 20, an elastic piece and two fourth connecting pieces 13, and the fourth connecting pieces 13 are arranged on both sides of the second connecting piece 9. The fourth connecting pieces 13 are provided with third protrusions and fourth protrusions, the third protrusions are used for connecting the telescopic piece 20, and the fourth protrusions are used for connecting the elastic piece. Here, the elastic piece is a spring.

[0044] It should be noted that the fourth connecting piece 13 comprises a first end and a second end, the second end is closer to the supporting leg 3 than the first end, the first end is provided with a first clamping groove 19, the first clamping groove 19 is clamped with the second connecting piece 9, so as to limit the second connecting piece 9, and the second end is provided with a pressing piece 22, the pressing piece 22 is a structure extending outward on the fourth connecting piece 13, and here, the outward extension refers to the extension in a direction away from the second connecting piece 9. After the locking mechanism fixes the position of the second connecting piece 9, the first end of the fourth connecting piece 13 is opened after pressing the pressing piece 22, the telescopic piece 20 is lengthened, and the spring is in a stretched state. At this time, the second connecting piece 9 can be slid along the slide rail 8 to the mounting ring 4, and after sliding to a predetermined position, the pressing piece 22 is released, and the spring drives the telescopic piece 20 to reset. It should be noted that the two pressing pieces 22 can be pressed simultaneously or one of the pressing pieces 22 can be pressed during operation. When one of the pressing pieces 22 is pressed, the fourth connecting piece 13 where the other pressing piece 22 is located will also be opened outward under the action of the telescopic piece 20 and the elastic piece. The second connecting piece 9 is provided with a supporting frame, and the supporting frame is provided with second clamping grooves 23 on both sides, and the fourth connecting pieces 13 are arranged on both sides of the second connecting piece 9 through the second clamping grooves 23.

[0045] The supporting leg 3 and the base are provided with a hand clamping protection mechanism 18, and the protection mechanism 18 is arranged on the supporting frame. Specifically, the supporting frame is provided with an arc-shaped structure near the supporting leg 3, and the arc-shaped structure is adapted to the shape of the hinge between the second connecting piece 9 and the supporting leg 3, so that the relative position relationship between the arc-shaped structure and the upper end of the supporting leg 3 remains unchanged regardless of the folding or opening state of the supporting leg 3. There is no large gap between the base and the supporting leg 3, so as to avoid the user from being clamped by hand in case of inattention.

[0046] The support leg 3 comprises an outer shell 14 and an inner core 15, in order to make the support leg 3 beautiful and to strengthen the mechanical properties, the outer shell 14 is made of plastic material, the inner core 15 is made of metal material with a hollow structure, the outer shell 14 and the inner core 15 are assembled together through a torsion spring, and the outer shell 14 and the inner core 15 are assembled together through a torsion spring. The inner core 15 can be telescopic in the outer shell 14. Specifically, the outer shell comprises a first shell and a second shell, the first shell is below the second shell, the first shell and the second shell are clamped with each other, the inner core is provided with a plurality of sets of limiting grooves 17, the outer shell 14 and the inner core 15 are provided with a positioning mechanism 16, the limiting grooves 17 and the positioning mechanism 16 are matched with each other, and the limiting grooves 17 and the positioning mechanism 16 are matched with each other. The position of the inner core 15 is limited and fixed, so as to adjust the height of the support leg 3, so that the adaptability of the support leg 3 to the automobile is stronger, and the applicability is wider. The positioning mechanism 16 can be fixedly connected with the outer shell 14.

[0047] The base further comprises a protective shell arranged outside the support frame, and a third working hole 25 is arranged on each side of the protective shell. The position and size of the third working hole 25 are adapted to the position and size of the pressing piece 22. After the protective shell is assembled, the pressing piece 22 is exposed through the third working hole 25, which is convenient for the user to operate. The protective shell is provided with a first inner cavity 26 and a second inner cavity. The first inner cavity 26 is arranged above the second inner cavity. The telescopic piece 20 and the elastic piece are located in the first inner cavity 26. The second connecting piece 9 is located in the second inner cavity near one end of the support leg 3.

[0048] It can be understood that the base further comprises a mounting ring 4 and two support plates 2 arranged below the mounting ring 4. The mounting ring 4 is provided with a first mounting hole for connecting the support plates 2. The outer periphery of the mounting ring 4 is relatively provided with two protruding structures 5. One of the protruding structures 5 is detachably connected with the first connecting piece 1. The two support plates 2 are respectively located below the two protruding structures 5. The mounting ring 4 is further provided with a second mounting hole 6 for connecting the bottom of the seat. When the seat rotates, the force on the seat is dispersed on the support plates 2, the second mounting hole 6 and the first connecting piece 1, so that the seat no longer applies force to the first connecting piece 1 alone. As the number of stress points increases, the force dispersed on each stress point is greatly reduced, the stress degree of the connection between the base and the seat is reduced, which helps to stabilize the base, prolongs the service life of the base, and makes the safety seat work more reliably.

[0049] The above describes the present application in detail. The principles and implementation modes of the present application are described by applying specific examples. The above examples are only used to help understand the present application and the core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the present application, the present application can be improved and modified in many ways. These improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A seat support assembly characterized by, The base and the supporting leg (3) are connected, the supporting leg (3) can rotate around the base, the supporting leg (3) and the base are provided with a protection mechanism (18) at the connection position, and the protection mechanism (18) is used for preventing hand clamping; The base comprises a first connecting piece (1) and a second connecting piece (9), the second connecting piece (9) is hinged with the supporting leg (3), the bottom of the first connecting piece (1) is provided with a working groove (7), the working groove (7) is provided with a sliding rail (8) inside, the second connecting piece (9) is partially arranged on the sliding rail (8), the second connecting piece (9) slides along the sliding rail (8), a plurality of first working holes are arranged on the sliding rail (8), and balls are arranged in the first working holes, a third connecting piece (10) is arranged between the first connecting piece (1) and the second connecting piece (9), a plurality of second working holes (12) are arranged on the third connecting piece (10), and balls are arranged in the second working holes (12). A gap is arranged between the third connecting piece (10) and the second connecting piece (9). An arc-shaped structure is arranged on the supporting frame close to the position of the supporting leg (3), the arc-shaped structure is matched with the shape of the hinged position of the second connecting piece (9) and the supporting leg (3), and the relative position relationship between the arc-shaped structure and the upper end of the supporting leg (3) remains unchanged in the folded or unfolded state of the supporting leg (3).

2. A seat support assembly according to claim 1, wherein, A first protrusion (21) or a second groove is arranged on the sliding rail (8), a first groove or a second protrusion is arranged at the corresponding position of the first connecting piece (1), the first protrusion (21) and the first groove are connected in a matched mode, or the second groove and the second protrusion are connected in a matched mode.

3. A seat support assembly according to claim 1, wherein, A buckle (11) is arranged on the third connecting piece (10), and the third connecting piece (10) and the first connecting piece (1) are clamped.

4. A seat support assembly according to claim 3, wherein, A limiting mechanism is arranged at the end of the second connecting piece (9) away from the supporting leg (3), and the limiting mechanism is used for limiting the sliding of the second connecting piece (9) towards the supporting leg (3).

5. A seat support assembly according to claim 4, wherein, A locking mechanism is arranged at the end of the second connecting piece (9) close to the supporting leg (3), and the locking mechanism is used for locking the position of the second connecting piece (9) and preventing the second connecting piece (9) from sliding away from the supporting leg (3).

6. A seat support assembly according to claim 5, wherein, The locking mechanism comprises a telescopic piece (20), an elastic piece and a fourth connecting piece (13), the fourth connecting piece (13) is two, the fourth connecting piece (13) is arranged on the two sides of the second connecting piece (9) respectively, the fourth connecting piece (13) is provided with a third protrusion and a fourth protrusion, the third protrusion is used for connecting the telescopic piece (20), and the fourth protrusion is used for connecting the elastic piece.

7. A seat support assembly according to claim 6, wherein, The fourth connecting piece (13) comprises a first end and a second end, the second end is closer to the support leg (3) than the first end, the first end is provided with a first clamping groove (19), the first clamping groove (19) is clamped with the second connecting piece (9) to limit the second connecting piece (9), and the second end is provided with a pressing piece (22) for controlling the opening and closing of the first end.

8. A seat support assembly according to claim 7, wherein, The support frame is provided with a second clamping groove (23) on both sides, and the fourth connecting piece (13) is arranged on both sides of the second connecting piece (9) through the second clamping groove (23).

9. A seat support assembly according to claim 1, wherein, The support leg (3) comprises an outer shell (14) and an inner core (15), the inner core (15) is telescopic in the outer shell (14), the outer shell (14) is made of plastic material, and the inner core (15) is made of metal material.

10. A seat support assembly according to claim 9, wherein, The outer shell (14) comprises a first shell and a second shell, the first shell is below the second shell, the first shell and the second shell are clamped, the inner core (15) is a hollow structure, a plurality of sets of limiting grooves (17) are arranged on the surface of the inner core (15), a positioning mechanism (16) is arranged between the outer shell (14) and the inner core (15), and the limiting grooves (17) and the positioning mechanism (16) are matched with each other and used for limiting and fixing the position of the inner core (15).

11. A seat support assembly according to claim 8, wherein, The base comprises a protective shell arranged outside the support frame, and one third working hole (25) is arranged on each side of the protective shell.

12. A seat support assembly according to claim 11, wherein, The protective shell is provided with a first inner cavity (26) and a second inner cavity, the first inner cavity (26) is arranged above the second inner cavity, the telescopic piece (20) and the elastic piece are located in the first inner cavity (26), and the second connecting piece (9) is located in the second inner cavity at one end close to the support leg (3).

13. A seat support assembly according to claim 1, wherein, The base further comprises a mounting ring (4) and a support plate (2), the mounting ring (4) is provided with mounting holes, the mounting holes comprise first mounting holes and second mounting holes (6), the first mounting holes are used for connecting the support plate (2), the support plate (2) is arranged below the mounting ring (4), and the second mounting holes (6) are used for connecting the bottom of the seat.

14. A seat support assembly according to claim 13, wherein, The outer periphery of the mounting ring (4) is provided with a protruding structure (5), the protruding structure (5) and the first connecting piece (1) are detachably connected, the support plate (2) is two, and the two support plates (2) are located below the sides of the protruding structure (5) respectively.

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