Extendable / retractable and rollover-resistance automobile safety seat base

Abstract

Disclosed in the present application is an extendable / retractable and rollover-resistance automobile safety seat base, comprising a base body (1) and a rollover-resistance assembly (2); the rollover-resistance assembly (2) is arranged on the base body (1) and is slidably adjustable in the front-rear direction of the base body (1) in an extendable / retractable manner, and the rollover-resistance assembly (2) is configured to abut against a backrest side of an automobile seat so as to achieve rollover resistance; users can operate the rollover-resistance assembly (2) to extend backwards or retract forwards relative to the base body (1), so as to adjust the extension / retraction length of the rollover-resistance assembly (2) relative to the base body (1). Thus, the rollover-resistance assembly (2) can undergo extendable / retractable adjustment correspondingly on the basis of automobile seats of different sizes, so as to ensure that the rollover-resistance assembly (2) can abut against backrest sides of automobile seats of different sizes, thus satisfying the rollover-resistance requirements of mounting and fitting of different automobile seats, and solving the problem of unnatural leg flexion of children in use due to backward mounting.

Description

A retractable, rollover-resistant car safety seat base

[0001] This application is based on and claims priority to Chinese application No. CN2024107733717, filed on June 17, 2024, the disclosure of which is incorporated herein by reference in its entirety. [Technical Field]

[0002] This application relates to infant car seats, and more particularly to a retractable, rollover-resistant car seat base. [Background Technology]

[0003] With the improvement of living standards, the number of family cars is also increasing. Choosing to travel by car has become a common way for families to travel daily. A car safety seat specially equipped with a child safety seat that can be used by children of all ages can effectively improve children's safety when riding in a car. At present, most child car safety seats consist of a seat and a base that is installed on the car seat. The installation of the base and the car seat mainly adopts the ISOFIX interface method. That is, the ISOFIX interface on the base is connected to the preset interface on the car seat. The interface is simply clicked and locked, making the installation simple and quick.

[0004] However, due to the different styles and sizes of car seats, some non-adjustable ISOFIX interfaces cannot be used with car seats of different sizes, resulting in low practicality and low market competitiveness.

[0005] Other retractable and adjustable ISOFIX connectors are suitable for car seats of different sizes. This is achieved by extending and adjusting the length of the sliding sleeve of the ISOFIX connector. However, this results in a longer lever arm for the ISOFIX connector, and the rear of the base cannot fit snugly against the car seat back. Consequently, it cannot meet the installation, fit, and anti-rollover requirements of car seats of different sizes, posing a certain safety hazard.

[0006] Therefore, this application addresses the aforementioned issues.

[0007] [Application Content]

[0008] The purpose of this application is to overcome the shortcomings of the prior art and provide a retractable anti-rollover car seat base. The length of the anti-rollover component relative to the base body can be controlled and adjusted by the sliding of the anti-rollover component relative to the base body. That is, the anti-rollover component can be adjusted to fit the back of different sized car seats to ensure that the anti-rollover component can fit snugly against the back of different sized car seats. Therefore, this application can meet the anti-rollover requirements of different sized car seats and can also solve the problem of unnatural leg flexion when the child is installed in the rear-facing position.

[0009] This application discloses a retractable, rollover-resistant car safety seat base, comprising:

[0010] Base body 1;

[0011] Anti-rollover component 2, which is disposed on the base body 1 and can be extended, retracted and slidably adjusted along the front and rear direction of the base body 1, and is configured to abut against the back of the car seat to achieve anti-rollover.

[0012] An anti-overturning locking mechanism 3 is located between the base body 1 and the anti-overturning component 2 to lock the anti-overturning component 2 relative to the base body 1.

[0013] Anti-flip unlocking mechanism 4, which is located on the base body 1 or the anti-flip assembly 2 to be used to link the unlocking action of the anti-flip locking mechanism 3.

[0014] ISOFIX interface component 5 is disposed on anti-flip component 2.

[0015] As described above, a retractable anti-rollover car safety seat base has a guide structure 6 between the anti-rollover component 2 and the base body 1 for guiding the sliding path of the anti-rollover component 2.

[0016] As described above, a retractable anti-rollover car safety seat base includes a guide structure 6 comprising a guide strip hole 61 provided on the anti-rollover component 2 and extending along the front-rear direction of the base body 1, and a guide rod 62 provided on the base body 1 and slidingly cooperating with the guide strip hole 61.

[0017] As described above, a retractable anti-rollover car safety seat base includes an anti-rollover sliding frame 21 slidably mounted on a base body 1 and an anti-rollover abutment 22 connected to the rear end of the anti-rollover sliding frame 21. The anti-rollover abutment 22 has an abutment surface 220 that abuts against and fits against the back of the car seat. The base body 1 is provided with a base groove 11 extending along its front-rear direction and slidably connected to the anti-rollover sliding frame 21. The anti-rollover locking mechanism 3 is located between the base body 1 and the anti-rollover sliding frame 21.

[0018] As described above, a retractable anti-rollover car safety seat base includes an anti-rollover locking mechanism 3 comprising a locking groove 34 on an anti-rollover sliding frame 21, wherein a locking movable block 35 is slidably disposed within the locking groove 34, and an anti-rollover locking member 32 is movably connected between two locking movable blocks 35; the anti-rollover locking mechanism 3 further includes anti-rollover locking engagement portions 31 spaced along the front-rear direction on the base body 1 for the anti-rollover locking member 32 to be engaged, and a locking reset member 33 is provided between the locking movable block 35 and the bottom of the locking groove 34 for elastically pressing the locking movable block 35 so that the anti-rollover locking member 32 remains engaged in the anti-rollover locking engagement portion 31; the locking movable block 35 is configured to be unlocked by the anti-rollover unlocking mechanism 4.

[0019] As described above, a retractable anti-rollover car safety seat base includes an anti-rollover unlocking mechanism 4 comprising an anti-rollover unlocking rod 41 and an anti-rollover operating rod 42. The middle part of the anti-rollover unlocking rod 41 is rotatably connected to the anti-rollover sliding frame 21, and the front end of the anti-rollover unlocking rod 41 can press against the upper surface of the locking movable block 35 to disengage the anti-rollover locking member 32 from the anti-rollover locking latching part 31. The rear end of the anti-rollover unlocking rod 41 is connected to the anti-rollover operating rod 42.

[0020] As described above, a retractable anti-rollover car safety seat base has a receiving cavity 12 at the rear of the base body 1 for accommodating the anti-rollover abutment part 22.

[0021] As described above, a retractable anti-rollover car safety seat base includes an ISOFIX interface assembly 5 comprising an ISOFIX housing 51 disposed on the side of the anti-rollover sliding frame 21, an ISOFIX sleeve 52 being slidably and adjustablely connected to the ISOFIX housing 51, and an ISOFIX telescopic adjustment mechanism 53 being provided between the ISOFIX housing 51 and the ISOFIX sleeve 52.

[0022] As described above, in a retractable anti-rollover car safety seat base, the anti-rollover sliding frame 21, the anti-rollover abutment 22, and the ISOFIX housing 51 are integrally molded from plastic.

[0023] As described above, a retractable anti-rollover car safety seat base is provided with an anti-rollover reinforcing tube 23 between the anti-rollover sliding frame 21 and the anti-rollover abutment part 22.

[0024] As described above, a retractable anti-rollover car safety seat base is provided with an anti-rollover assembly 2, which has a concealing housing 211 for hiding the anti-rollover unlocking lever 41 and the anti-rollover operating lever 42.

[0025] Compared with the prior art, this application has the following advantages:

[0026] 1. This application can control and adjust the length of the anti-rollover component relative to the base body by sliding the anti-rollover component relative to the base body. That is, the anti-rollover component can be adjusted to extend and retract according to different sizes of car seats to ensure that the anti-rollover component can fit against the backrest side of different sizes of car seats. Therefore, this application can meet the anti-rollover requirements of different car seats and can also solve the problem of unnatural leg flexion when the child is installed in the rear.

[0027] 2. The sliding fit between the base slide groove and the anti-overturning sliding frame can play a guiding and limiting role, ensuring that the anti-overturning sliding frame slides smoothly in the set direction.

[0028] 3. In order to make the overall shape and structure of this application simple, save space and maintain the aesthetics of the product, the rear part of the base body is provided with a receiving cavity for accommodating the anti-flipping abutment.

[0029] 4. This application places the retractable ISOFIX interface component on the retractable anti-flip component, enabling the ISOFIX interface component to have a two-stage telescopic function, a larger telescopic distance, and at the same time ensuring its mechanical strength, thus ensuring a safe and reliable connection.

[0030] 5. In order to cover and conceal the internal mechanism when it is extended and pulled out for use, the anti-flip assembly is provided with a concealing shell for hiding the anti-flip unlocking rod and the anti-flip operating rod. [Attached Image Description]

[0031] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings, wherein:

[0032] Figure 1 is a three-dimensional structural diagram of the anti-flipping component in this application when it retracts into the base body.

[0033] Figure 2 is a three-dimensional structural diagram of the anti-tumble component extending out of the base body in this application.

[0034] Figure 3 is one of the three-dimensional structural diagrams of the anti-flip component extending out of the base body and the ISOFIX interface component in the extended state in this application.

[0035] Figure 4 is a second three-dimensional structural diagram of the anti-flip component extending out of the base body and the ISOFIX interface component in the extended state in this application.

[0036] Figure 5 is a bottom view of the anti-flip component in this application when the base body is retracted and the ISOFIX interface component is extended.

[0037] Figure 6 is a bottom view of the anti-flip component extending out of the base body and the ISOFIX interface component extending out in this application.

[0038] Figure 7 is one of the three-dimensional structural schematic diagrams of the anti-flipping component in this application.

[0039] Figure 8 is a second three-dimensional structural schematic diagram of the anti-flipping component in this application.

Detailed Implementation Methods

[0040] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0041] As shown in Figures 1-8, this application discloses a retractable, anti-tipping car safety seat base, comprising:

[0042] Base body 1;

[0043] Anti-rollover component 2, which is disposed on the base body 1 and can be extended, retracted and slidably adjusted along the front and rear direction of the base body 1, and is configured to abut against the back of the car seat to achieve anti-rollover.

[0044] An anti-overturning locking mechanism 3 is located between the base body 1 and the anti-overturning component 2 to lock the anti-overturning component 2 relative to the base body 1.

[0045] Anti-flip unlocking mechanism 4, which is located on the base body 1 or the anti-flip assembly 2 to be used to link the unlocking action of the anti-flip locking mechanism 3.

[0046] ISOFIX interface component 5 is disposed on anti-rollover component 2. When this application is installed in a car seat, the user releases the locking state of anti-rollover component 2 relative to base body 1 by unlocking anti-rollover unlocking mechanism 4 in conjunction with the unlocking action of anti-rollover locking mechanism 3. Then, the user extends anti-rollover component 2 backward relative to base body 1 until the anti-rollover abutment part 22 of anti-rollover component 2 abuts against the back of the car seat. At this time, ISOFIX interface component 5 connects to the preset interface on the car seat. Then, the force of anti-rollover unlocking mechanism 4 is released, and anti-rollover locking mechanism 3 locks anti-rollover component 2 relative to base body 1. Therefore, this application can install the car safety seat more stably and reliably in the car seat, ensuring its safety. At the same time, this application can meet the anti-rollover requirements of car seats of different sizes. In addition, it can also solve the problem of unnatural leg flexion when the child is installed in the rear-facing position.

[0047] As shown in Figures 5 and 6, in order to ensure that the anti-rollover component 2 slides and extends smoothly and stably along the set direction, a guide structure 6 is provided between the anti-rollover component 2 and the base body 1 to guide the sliding path of the anti-rollover component 2.

[0048] As shown in Figures 5 and 6, the guide structure 6 includes a guide strip hole 61 provided on the anti-overturning component 2 and extending along the front-rear direction of the base body 1, and a guide rod 62 provided on the base body 1 and slidingly guided in cooperation with the guide strip hole 61. The guide rod 62 can abut against and limit the movement of the guide rod 62 against the end wall of the corresponding guide strip hole 61, thus restricting the movement of the anti-overturning component 2 between the two end walls of the guide strip hole 61. Furthermore, the guide rod 62 is limited by its contact with the two side walls of the guide strip hole 61 to prevent the anti-overturning component 2 from shifting or swaying along the left-right direction of the base body 1.

[0049] As shown in Figures 5 and 6, in order to improve the connection strength between the anti-overturning component 2 and the base body 1, two guide strip holes 61 are symmetrically provided on the anti-overturning component 2, and the corresponding two guide rods 62 are symmetrically provided on the bottom of the base body 1.

[0050] As shown in Figures 1-4, 7, and 8, to ensure stable and smooth sliding adjustment of the anti-rollover sliding frame 21 and to make the structure of this application more compact and reduce the overall size, the anti-rollover component 2 includes an anti-rollover sliding frame 21 slidably mounted on the base body 1 and an anti-rollover abutment part 22 connected to the rear end of the anti-rollover sliding frame 21. The anti-rollover abutment part 22 has an abutment surface 220 that abuts against and fits against the back of a car seat. The base body 1 is provided with a base slide groove 11 extending along its front-rear direction and slidably connected to the anti-rollover sliding frame 21. The anti-rollover locking mechanism 3 is located between the base body 1 and the anti-rollover sliding frame 21. For easy pulling, the anti-rollover abutment part 22 has an operation window 221 for the user to insert their hand to operate the anti-rollover abutment part 22.

[0051] As shown in Figure 8, the anti-overturning sliding frame 21 and the anti-overturning abutment 22 are integrally molded with plastic. An anti-overturning reinforcing tube 23 is provided between the anti-overturning sliding frame 21 and the anti-overturning abutment 22, which can reduce manufacturing costs while enhancing the overall bending resistance of the anti-overturning component 2.

[0052] As shown in Figures 5-8, for reliable locking and convenient unlocking, the anti-overturning locking mechanism 3 includes a locking groove 34 on the anti-overturning sliding frame 21. A locking movable block 35 is slidably disposed within the locking groove 34, guiding the sliding path of the locking movable block 35 and ensuring precise engagement between the anti-overturning locking member 32 and the anti-overturning locking latching part 31. The anti-overturning locking member 32 is movably connected between the two locking movable blocks 35, enabling them to move simultaneously. Simultaneously, the anti-overturning locking member 32 also strengthens the structural strength between the two locking movable blocks 35. The anti-tilt locking mechanism 3 further includes anti-tilt locking engagement portions 31 spaced along the front-rear direction on the base body 1 for the anti-tilt locking member 32 to engage. A locking reset member 33 is provided between the bottom of the locking movable block 35 and the locking groove 34 to elastically press the locking movable block 35, ensuring the anti-tilt locking member 32 remains engaged in the anti-tilt locking engagement portion 31. The locking movable block 35 is configured to be unlocked by the anti-tilt unlocking mechanism 4. The anti-tilt sliding frame 21 has a side U-shaped structure, with two symmetrical locking grooves 34 located at the middle of the left and right sliding sections of the anti-tilt sliding frame 21, ensuring the anti-tilt locking member 32 is positioned between the left and right sliding sections and spans the bottom of the base body, thus guaranteeing structural strength.

[0053] As shown in Figures 5 and 6, the base body 1 is provided with several iron plates extending along its front-back direction. Each iron plate is provided with an anti-overturning locking engagement part 31. Two anti-overturning locking parts 32 simultaneously engage with the base body 1 and the corresponding anti-overturning locking engagement parts 31 on the iron plates, which can increase the fixing strength and ensure that the anti-overturning locking mechanism and the base body are locked safely and reliably.

[0054] As shown in Figure 8, for easy unlocking, the anti-flip unlocking mechanism 4 includes an anti-flip unlocking rod 41 and an anti-flip operating rod 42. The middle part of the anti-flip unlocking rod 41 is rotatably connected to the anti-flip sliding frame 21, and the front end of the anti-flip unlocking rod 41 can press against the upper surface of the locking movable block 35 so that the anti-flip locking member 32 is disengaged from the anti-flip locking latching part 31. The rear end of the anti-flip unlocking rod 41 is connected to the anti-flip operating rod 42. When unlocking, the user pulls the anti-rollover operating lever 42, causing the rear ends of the two anti-rollover unlocking levers 41 to rotate upward around the axis of rotation between the anti-rollover unlocking lever 41 and the anti-rollover sliding frame 21. The front end of the anti-rollover unlocking lever 41 drives the locking movable block 35 to move the anti-rollover locking member 32 downward, so that the anti-rollover locking member 32 disengages from the anti-rollover locking engagement part 31, thereby releasing the locking state of the anti-rollover component relative to the base body. At this time, the anti-rollover component can be adjusted by extending it backward or retracting it forward relative to the base body. After the adjustment is completed, the pulling force of the anti-rollover operating lever 42 is released, and the locking movable block 35 slides upward and resets under the elastic force of the anti-rollover locking member 32, so that the anti-rollover locking member 32 engages with the corresponding anti-rollover locking engagement part 31, making the adjustment operation convenient.

[0055] As shown in Figures 1-4, in order to simplify the overall shape and structure of this application, save space, and maintain the aesthetics of the product, the rear of the base body 1 is provided with a receiving cavity 12 for accommodating the anti-tilting abutment part 22. As shown in Figure 1, when the anti-tilting abutment part 22 is placed in the receiving cavity 12, the abutment surface 220 of the anti-tilting abutment part 22 is on the same plane as the abutment surface of the rear of the base body 1, making the structure more compact.

[0056] As shown in Figures 1-8, the ISOFIX interface assembly 5 includes an ISOFIX housing 51 disposed on the side of the anti-overturn sliding frame 21. An ISOFIX sleeve 52 is slidably and adjustablely connected to the ISOFIX housing 51. An ISOFIX telescopic adjustment mechanism 53 is provided between the ISOFIX housing 51 and the ISOFIX sleeve 52. In this embodiment, the telescopic and adjustable ISOFIX interface assembly is disposed on the telescopic and adjustable anti-overturn assembly, enabling the ISOFIX interface assembly to have a two-stage telescopic function, a larger telescopic distance, and ensuring its mechanical strength, thus guaranteeing a safe and reliable connection.

[0057] In some embodiments, the ISOFIX telescopic adjustment mechanism 53 may include ISOFIX telescopic adjustment lock holes spaced apart on the ISOFIX housing 51 along the front-rear direction of the base body and ISOFIX telescopic adjustment lock blocks movably disposed on the ISOFIX sleeve core 52 and locked in cooperation with the corresponding ISOFIX telescopic adjustment lock holes.

[0058] As shown in Figure 8, in order to simplify the structure and improve the structural strength, the anti-overturning sliding frame 21, the anti-overturning abutment 22, and the ISOFIX housing 51 are integrally molded from plastic. An anti-overturning reinforcing tube 23 is provided between the anti-overturning sliding frame 21 and the anti-overturning abutment 22, which can reduce manufacturing costs while enhancing the overall bending resistance of the anti-overturning assembly 2.

[0059] As shown in Figure 8, the anti-overturning abutment 22 has an inlay groove 222 on its front side for embedding the anti-overturning reinforcing tube 23, which is convenient to install and has a compact structure. As shown in Figure 8, the embedded anti-overturning reinforcing tube 23 includes a first reinforcing tube section with a U-shaped structure that is embedded in the inlay groove 222, and a second reinforcing tube section that is connected to both ends of the first reinforcing tube section and extends along the front-rear direction of the base body and is installed on the anti-overturning sliding frame 21.

[0060] As shown in Figures 2, 3, 4, and 7, in order to cover and conceal the internal mechanism when the telescopic mechanism is extended and pulled out, the anti-tilting assembly 2 is provided with a concealing shell 211 for hiding the anti-tilting unlocking rod 41 and the anti-tilting operating rod 42. The concealing shell 211 can be integrally molded by injection molding.

Claims

1. A retractable, anti-tipping car safety seat base, characterized in that... include: Base body (1); Anti-rollover component (2), the anti-rollover component (2) is provided on the base body (1) and can be extended and slidably adjusted along the front and rear direction of the base body (1), and the anti-rollover component (2) is configured to abut against the back of the car seat to achieve anti-rollover; An anti-overturning locking mechanism (3) is located between the base body (1) and the anti-overturning component (2) for locking the anti-overturning component (2) relative to the base body (1); Anti-flip unlocking mechanism (4), which is located on the base body (1) or the anti-flip assembly (2) for the unlocking action of the anti-flip locking mechanism (3) in conjunction with the anti-flip locking mechanism (3); ISOFIX interface component (5), which is disposed on anti-flip component (2).

2. The retractable anti-tipping car safety seat base according to claim 1, characterized in that... A guide structure (6) is provided between the anti-rollover component (2) and the base body (1) to guide the sliding path of the anti-rollover component (2).

3. The retractable anti-tipping car safety seat base according to claim 2, characterized in that... The guide structure (6) includes a guide strip hole (61) provided on the anti-overturning component (2) and extending along the front-rear direction of the base body (1) and a guide rod (62) provided on the base body (1) and slidingly cooperating with the guide strip hole (61).

4. The retractable anti-tipping car safety seat base according to claim 1, characterized in that... The anti-rollover assembly (2) includes an anti-rollover sliding frame (21) slidably disposed on the base body (1) and an anti-rollover abutment (22) connected to the rear end of the anti-rollover sliding frame (21). The anti-rollover abutment (22) has an abutment surface (220) that abuts against and fits against the back of a car seat. The base body (1) is provided with a base slide groove (11) extending along its front-rear direction and slidably connected to the anti-rollover sliding frame (21). The anti-rollover locking mechanism (3) is located between the base body (1) and the anti-rollover sliding frame (21).

5. A retractable, anti-tipping car safety seat base according to claim 4, characterized in that... The anti-overturning locking mechanism (3) includes a locking groove (34) provided on the anti-overturning sliding frame (21). The locking groove (34) is provided with a locking movable block (35) that can slide up and down. An anti-overturning locking member (32) is connected between the two locking movable blocks (35). The anti-overturning locking mechanism (3) also includes an anti-overturning locking engagement part (31) provided on the base body (1) in the front-back direction for the anti-overturning locking member (32) to be engaged. A locking reset part (33) is provided between the locking movable block (35) and the bottom of the locking groove (34) for elastically pressing the locking movable block (35) so that the anti-overturning locking member (32) is kept engaged in the anti-overturning locking engagement part (31). The locking movable block (35) is configured to be unlocked by the anti-overturning unlocking mechanism (4).

6. The retractable anti-tipping car safety seat base according to claim 5, characterized in that... The anti-flip unlocking mechanism (4) includes an anti-flip unlocking rod (41) and an anti-flip operating rod (42). The middle part of the anti-flip unlocking rod (41) is rotatably connected to the anti-flip sliding frame (21), and the front end of the anti-flip unlocking rod (41) can press against the upper surface of the locking movable block (35) so that the anti-flip locking member (32) is disengaged from the anti-flip locking latch (31). The rear end of the anti-flip unlocking rod (41) is connected to the anti-flip operating rod (42).

7. A retractable, anti-tipping car safety seat base according to claim 4, characterized in that... The base body (1) has a receiving cavity (12) at the rear for accommodating the anti-overturning abutment (22).

8. The retractable anti-tipping car safety seat base according to claim 4, characterized in that... The ISOFIX interface assembly (5) includes an ISOFIX housing (51) located on the side of the anti-flip sliding frame (21), and an ISOFIX sleeve (52) is slidably and adjustablely connected to the ISOFIX housing (51). An ISOFIX telescopic adjustment mechanism (53) is provided between the ISOFIX housing (51) and the ISOFIX sleeve (52).

9. A retractable, anti-tipping car safety seat base according to claim 8, characterized in that... The anti-overturn sliding frame (21), the anti-overturn abutment (22), and the ISOFIX housing (51) are integrally molded from plastic.

10. A retractable, anti-tipping car safety seat base according to claim 9, characterized in that... An anti-overturning reinforcing tube (23) is provided between the anti-overturning sliding frame (21) and the anti-overturning abutment (22).

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