A child safety seat locking and unlocking mechanism

The interconnected locking component design solves the problems of convenient switching and inconvenient operation of child safety seat carriers between different products, enabling easy switching between the carrier and the stroller frame and base, reducing the volume occupied when carrying it out, and improving the product's versatility and ease of operation.

CN115366977BActive Publication Date: 2026-04-03SHANGHAI DOREL JUVENILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-30
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing child safety seat's basket and base, as well as the connection mechanism between the basket and the stroller frame, are inconvenient to unlock. Furthermore, the basket takes up a lot of space when switching between different products, resulting in poor versatility.

Method used

Design a child safety seat locking and unlocking mechanism. The mechanism uses an operating component that links the first and second locking components to unlock the carrier and the stroller frame or base. The first and second operating components slide to unlock the two locking components, simplifying the operation process.

Benefits of technology

It enables convenient switching between the stroller frame and base, reducing the volume occupied when carrying it out and improving the product's versatility and ease of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115366977B_ABST
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Abstract

This invention discloses a child safety seat locking and unlocking mechanism, including a base and a carrier. The carrier is selectively and detachably connected to a stroller frame or the base. The carrier has a first locking component for detachably connecting to an adapter of the stroller frame and locking the two together. A second locking component is provided between the carrier and the base to lock them together. The carrier also has an operating component that, when activated, can unlock the first and second locking components in conjunction with the first locking component, thereby separating the carrier from the adapter or the carrier from the base. The purpose of this invention is to overcome the shortcomings of the prior art and provide a child safety seat locking and unlocking mechanism that allows the carrier to be locked to the stroller frame's adapter or the base via the first and second locking components, enabling the carrier to be used for both connecting to the stroller frame and the child safety seat.
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Description

[Technical Field]

[0001] This invention relates to the field of child safety seat technology, specifically to a child safety seat unlocking mechanism and a child safety seat. [Background Technology]

[0002] As people's economic level improves, short-distance or long-distance travel has become commonplace for many families. For families with children, they will inevitably bring strollers and child car seats when they go out. That is, when driving, children ride in the vehicle using child car seats attached to the back seat; when getting out of the car, adults push the children in strollers for convenience.

[0003] Currently, the unlocking mechanisms for the connection between the carrier and the base, and between the carrier and the adapter, are all separate sets of unlocking mechanisms. These mechanisms use two different unlocking components to unlock and separate the carrier from the base, or from the adapter to the stroller frame, or require two-hand operation. This results in inconvenience in use.

[0004] Additionally, if the baby carrier is only for connecting to the base and cannot be connected to the stroller frame, the stroller frame will need to be equipped with a separate seat, which will take up a lot of space when carrying it out and will also be somewhat wasteful.

[0005] This invention was developed based on the aforementioned shortcomings. [Summary of the Invention]

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a child safety seat locking and unlocking mechanism. This mechanism allows the infant carrier to be locked to the adapter or base of the stroller frame via a first locking component and a second locking component, enabling the infant carrier to be used interchangeably for connecting the stroller frame or the child safety seat. In actual use, by operating the components, the first and second locking components can be unlocked in a corresponding manner, allowing the infant carrier to separate from the base or from the stroller frame adapter. This mechanism is characterized by its convenient operation and the ability to share the infant carrier, solving the problems of large volume when carrying it out and poor compatibility between different products.

[0007] To solve the above-mentioned technical problems, the present invention provides a child safety seat locking and unlocking mechanism, including a base 1 and a carrier 2. The carrier 2 can be detachably connected to a stroller frame 6 or the base 1. The carrier 2 is provided with a first locking component 3 for detachably connecting to an adapter 5 of the stroller frame and locking the two together. A second locking component 4 is provided between the carrier 2 and the base 1 to lock the two together. The carrier 2 is also provided with an operating component 7 that can unlock the first locking component 3 and the second locking component 4 in conjunction when activated, so as to separate the carrier 2 from the adapter 5 or the carrier 2 from the base 1.

[0008] The operating component 7 includes a first operating member 71 that is slidably connected to the basket 2 and can unlock the first locking component 3 when it slides, and a second operating member 72 that is slidably connected to the base 1 and connected to the first operating member 71. When the first operating member 71 slides, the second operating member 72 is driven by the first operating member 71, thereby unlocking the second locking component 4.

[0009] The basket 2 includes a basket body 21 and a locking bracket 22 connected to the basket body 21 and protruding outward. The basket body 21 is detachably connected to the base 1 through the locking bracket 22. The second locking component 4 is disposed between the locking bracket 22 and the base 1.

[0010] The adapter 5 is provided with a snap-fit ​​position 51. The first locking component 3 includes a snap-fit ​​member 31 that is rotatably connected to the basket 2 and can snap or disengage from the snap-fit ​​position 51 of the adapter 5. An elastic member 32 is provided between the snap-fit ​​member 31 and the basket 2 to allow the snap-fit ​​member 31 to reset. A pulling element 33 is also connected between the first operating member 71 and the snap-fit ​​member 31 to allow the snap-fit ​​member 31 to disengage from the snap-fit ​​position 51 when the first operating member 71 is operated.

[0011] The latching component 31 is a latching hook rotatably connected to the basket 2, and the latching position 51 is a latching block that can latch with the latching hook 32.

[0012] The second locking assembly 4 includes a locking element 41 rotatably connected to the base 1. The locking element 41 has a locking position 411 that allows the front end of the locking bracket 22 to be engaged. When the locking element 41 is rotated to the position, the locking position 411 and the base 1 cooperate to form a closed space 42, thereby locking the front end of the locking bracket 22. An elastic reset member 43 is provided between the locking element 41 and the base 1. A locking member 44 is also slidably connected to the base 1, which can engage with the base 1 when the locking element 41 is rotated to the position, so that the locking element 41 is kept in the locked state. The second operating member 72 is connected to the base 1, and when the first operating member 71 slides, it can be driven by the action block 71 to separate the locking member 44 from the locking element 41. A return spring 45 is also provided between the second operating member 72 and the base 1.

[0013] The locking component 44 includes a sliding rod 441. The base 1 is provided with a locking hole 11 for the sliding rod 441 to be inserted. The sliding rod 441 is provided with an extension 442 that extends downward and passes through the second operating component 72 and the base 1 in sequence. The second operating component 72 is provided with a driving groove 721 that can press against the extension 442 to drive the sliding rod 441 to slide laterally and disengage from the locking element 41. The base 1 is also provided with a guide groove 12 that allows the extension 442 to slide.

[0014] The locking element 41 includes a locking piece 412, and the locking position 411 is a slot provided on the locking piece 412 that allows the front end of the locking bracket 22 to be engaged. The locking piece 412 is also provided with a backing part 413 that can abut against the locking member 44 after it is rotated into position, so that the locking element 41 is kept in a locked state.

[0015] The front end of the locking bracket 22 is provided with a first connecting part 221 that can be locked and connected with the locking component 44, the rear end of the locking bracket 22 is provided with a second connecting part 222, and the base 1 is provided with a locking part 16 that can be locked into the second connecting part 222.

[0016] The base 1 includes a lower base cover 13 and an upper base cover 14 connected to the lower base cover 13. The lower base cover 13 is provided with a connecting post 15, and the locking member 44 is rotatably connected to the connecting post 15.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The baby carrier in this invention is connected and locked to the adapter or base of the stroller frame via a first locking component and a second locking component. When the baby carrier is connected and locked to the adapter, it is used as a stroller seat; when the baby carrier is connected and locked to the base, it is used as a child safety seat. This allows the baby carrier to be switched and used in different products, enhancing the versatility of the product, making it convenient for people to carry, use, and store when going out, and reducing the volume occupied.

[0019] 2. In this invention, the second locking component and the first locking component are linked for unlocking. Therefore, when unlocking, the user only needs to operate the operating component to unlock the second locking component and the first locking component accordingly. Thus, whether the basket is installed on the adapter of the stroller frame or on the base, the unlocking operation only requires operating the operating component, without the need for separate unlocking, thus having the feature of convenient unlocking operation. [Attached Image Description]

[0020] Figure 1 This is one of the cross-sectional views of the child safety seat unlocking mechanism of the present invention;

[0021] Figure 2 Figure 1 Exploded view;

[0022] Figure 3 This is a second cross-sectional view of the child safety seat unlocking mechanism of the present invention;

[0023] Figure 4 Figure 3 Exploded view;

[0024] Figure 5 This is an exploded view of the base in the child safety seat unlocking mechanism of the present invention;

[0025] Figure 6 This is one of the state diagrams of the base in the child safety seat unlocking mechanism of the present invention;

[0026] Figure 7 This is the second state diagram of the base in the child safety seat unlocking mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the carrier in the child safety seat unlocking mechanism of the present invention;

[0028] Figure 9 This is an exploded view of the infant carrier in the child safety seat unlocking mechanism of the present invention;

[0029] Figure 10 This is one of the cross-sectional views of the first locking component in the child safety seat unlocking mechanism of the present invention;

[0030] Figure 11 This is a second cross-sectional view of the first locking component in the child safety seat unlocking mechanism of the present invention;

[0031] Figure 12 This is a third cross-sectional view of the first locking component in the child safety seat unlocking mechanism of the present invention;

[0032] Figure 13 This is the fourth cross-sectional view of the first locking component in the child safety seat unlocking mechanism of the present invention;

[0033] Figure 14 This is an exploded view of the infant carrier in the child safety seat unlocking mechanism of the present invention;

[0034] Figure 15 This is a cross-sectional view of the carrier in the child safety seat unlocking mechanism of the present invention;

[0035] Figure 16 This is one of the perspective views of the child safety seat of the present invention;

[0036] Figure 17 This is the second perspective view of the child safety seat of the present invention;

[0037] Figure 18 This is the third perspective view of the child safety seat of the present invention.

Detailed Implementation Methods

[0038] The present invention will now be further described with reference to the accompanying drawings:

[0039] like Figures 1 to 18 As shown, this invention provides a child safety seat unlocking mechanism, including a base 1 and a carrier 2. The carrier 2 is detachably connected to either a stroller frame 6 or the base 1. The carrier 2 is provided with a first locking component 3 for detachably connecting to an adapter 5 of the stroller frame and locking the two together. A second locking component 4 is provided between the carrier 2 and the base 1 to lock the two together. The carrier 2 is also provided with an operating component 7 that, when activated, can simultaneously unlock the first locking component 3 and the second locking component 4, thereby separating the carrier 2 from the adapter 5 or from the base 1. Because the second locking component and the first locking component unlock in conjunction in this invention, the user only needs to activate the operating component to unlock both components. Therefore, whether the carrier is installed on the adapter or the base of the stroller frame, the unlocking operation only requires activating the operating component, without needing to unlock them separately, thus providing a convenient unlocking operation.

[0040] Furthermore, in use, the baby carrier 2 of this invention is connected and locked to the adapter 5 of the stroller frame or the base 1 via the first locking component 3 and the second locking component 4, respectively. Figure 16-18 As shown, when the baby carrier 2 is connected and locked onto the adapter 5 of the stroller frame, it is used as a seat with the stroller frame; as Figure 3 As shown, when the carrier 2 is connected and locked to the base 1, it is used as a child safety seat. Therefore, the carrier 2 can be used in different products such as car child safety seats and stroller frames, which has the characteristics of good versatility. This also makes it convenient for people to carry, use and store when going out, and reduces the storage space occupied.

[0041] like Figures 4 to 11 As shown, the operating component 7 includes a first operating member 71 slidably connected to the basket 2 and capable of unlocking the first locking component 3 when slidable, and a second operating member 72 slidably connected to the base 1 and connected to the first operating member 71. When the first operating member 71 slides, the second operating member 72 is driven by the first operating member 71, thereby unlocking the second locking component 4. When the first operating member 71 is activated, the first locking component 3 is unlocked, and at the same time, the second operating member 72 moves along with the first operating member 71, thus unlocking the second locking component 4. Operating the first operating member 71 can unlock both locking components, so whether connected to the stroller frame 6 or the base 1, it can be unlocked with one operation.

[0042] like Figures 9 to 11 As shown, the adapter 5 has a snap-fit ​​position 51. The first locking assembly 3 includes a snap-fit ​​member 31 rotatably connected to the basket 2 and capable of snapping into or out of the snap-fit ​​position 51 of the adapter 5. An elastic member 32 is provided between the snap-fit ​​member 31 and the basket 2 to allow the snap-fit ​​member 31 to reset. A pulling element 33 is also connected between the first operating member 71 and the snap-fit ​​member 31, which allows the snap-fit ​​member 31 to disengage from the snap-fit ​​position 51 when the first operating member 71 is operated. When it is necessary to unlock the first locking assembly 3, the operating block 71 is pulled. When the operating block 71 is pulled, it causes the pulling element 343 to move. When the pulling element 33 moves, it causes the snap-fit ​​member 31 to rotate, and the snap-fit ​​member 31 disengages from the snap-fit ​​position 51 on the adapter 5. At this time, the first locking assembly 3 is unlocked, and the basket 2 can be separated from the adapter 5 of the stroller frame.

[0043] like Figures 9 to 11 As shown, the latching component 31 is a latch hook rotatably connected to the basket 2, and the latching position 51 is a latching block that can engage with the latch hook 32. The latch hook is provided with a latching groove that can engage with the latching block, making locking and locking more convenient.

[0044] like Figures 14 to 15 As shown, the basket 2 includes a basket body 21 and a locking bracket 22 connected to the basket body 21 and protruding outward. The basket body 21 is detachably connected to the base 1 via the locking bracket 22. The second locking component 4 is disposed between the locking bracket 22 and the base 1. The basket body 21 is connected to the base 1 via the locking bracket 22.

[0045] like Figures 6 to 7As shown, the second locking assembly 4 includes a locking element 41 rotatably connected to the base 1. The locking element 41 is provided with a locking position 411 that allows the front end of the locking bracket 22 to be engaged. When the locking element 41 is rotated to the position, the locking position 411 and the base 1 cooperate to form a closed space 42, thereby locking the front end of the locking bracket 22. An elastic reset member 43 is provided between the locking element 41 and the base 1. A locking member 44 is also slidably connected to the base 1, which can engage with the base 1 when the locking element 41 is rotated to the position, so that the locking element 41 is kept in the locked state. The second operating member 72 is connected to the base 1, and when the first operating member 71 slides, it can be driven by the action block 71 to separate the locking member 44 from the locking element 41. A return spring 45 is also provided between the second operating member 72 and the base 1. When the second locking component 4 needs to be unlocked, the first locking component 3 needs to be unlocked first. When the first operating member 71 is operated and slides, the second operating member 72 is pushed by the first operating member 71 and slides relative to the base 1. At this time, the second operating member 72 drives the locking member 44 to slide until the locking member 44 disengages from the locking element 41. The elastic reset member 43 pushes the locking element 41 to reset. The locking element 41 rotates so that the locking position 411 faces upward. At this time, the closed space 42 is opened, and the front end of the locking bracket 22 can be removed from the base 1. The rear end of the locking bracket 22 can also be removed from the base 1, and the basket 2 is separated from the base 1. When the second locking component 4 needs to be locked again, the rear end of the locking bracket 22 is connected to the base 1, and then the front end of the locking bracket 22 is inserted into the locking position 411. The front end of the locking bracket 22 presses down on the locking element 41, and the locking element 41 rotates relative to the base 1 until the locking element 41 rotates into place. The locking position 411 and the base 1 cooperate to form a closed space 42, which locks the front end of the locking bracket 22. At the same time, the return spring 45 pushes the second operating member 72 to reset. When the second operating member 72 resets, the locking member 44 slides relative to the base 1 again and locks into the base 1. The locking member 44 and the locking element 41 press against each other, so that the front end of the locking bracket 22 is locked in the closed space 42.

[0046] like Figure 5As shown, the engaging component 44 includes a sliding rod 441. The base 1 has a locking hole 11 for the sliding rod 441 to engage. The sliding rod 441 has an extension 442 that extends downward and passes through the second operating component 72 and the base 1 in sequence. The second operating component 72 has a driving groove 721 that can press against the extension 442 to drive the sliding rod 441 to slide laterally and disengage from the locking element 41. The base 1 also has a guide groove 12 for the extension 442 to slide. When the second operating component 72 is slid relative to the base 1 by the first operating component 71, the driving groove 721 on the second operating component 72 pushes the extension 442 to slide, causing the extension 442 to slide laterally relative to the base 1, thereby causing the sliding rod 441 to disengage from the locking hole 11 on the base 1. When the reset spring 45 pushes the second operating member 72 to reset, the drive slide groove 721 push extension 442 on the second operating member 72 slides in the opposite direction, causing the drive slide groove 721 push extension 442 to slide in the opposite direction, thereby causing the sliding rod 441 to be locked into the locking hole 11 on the base again.

[0047] like Figure 5 As shown, the locking element 41 includes a locking piece 412, and a locking position 411 is a slot provided on the locking piece 412 that allows the front end of the engaging bracket 22 to be engaged. The locking piece 412 is also provided with a backing part 413 that can abut against the engaging member 44 after it has rotated to the correct position, thereby keeping the locking element 41 in a locked state. The backing part 413 can abut against the locking piece 412 after it has rotated to the correct position, thereby keeping the locking element 41 in a locked state.

[0048] like Figure 5 As shown, the base 1 includes a lower base cover 13 and an upper base cover 14 connected to the lower base cover 13. The lower base cover 13 is provided with a connecting post 15, and the locking element 41 is rotatably connected to the connecting post 15. When the locking element 41 is pressed against the front end of the locking bracket 22, it rotates relative to the connecting post 15.

[0049] like Figures 4 to 5 As shown, the front end of the locking bracket 22 is provided with a first connecting part 221 that can be engaged with the locking component 44, and the rear end of the locking bracket 22 is provided with a second connecting part 222. The base 1 is provided with a locking part 16 that can be engaged into the second connecting part 222. When it is necessary to connect the basket 2 to the base 1, first align the second connecting part 222 with the locking part 16, then move the basket 21. At this time, the second connecting part 222 and the locking part 16 are engaged and fixed. Then, the first connecting part 221 is engaged into the locking element 41, and then the basket 21 is pressed downward so that the first connecting part 221 pushes the locking element 41 to the predetermined position.

Claims

1. A child safety seat locking and unlocking mechanism, characterized in that: Includes a base (1) and a carrying basket (2). The carrying basket (2) can be detachably connected to either the stroller frame (6) or the base (1). The carrying basket (2) is provided with a first locking component (3) for detachably connecting to an adapter (5) of the stroller frame and locking the two together. A second locking component (4) is provided between the carrying basket (2) and the base (1) to lock the two together. The carrying basket (2) is also provided with an operating component (7) that can unlock the first locking component (3) and the second locking component (4) in conjunction with the adapter after being activated, so that the carrying basket (2) and the adapter are locked together. (5) Separate the basket (2) from the base (1); the operating component (7) includes a first operating member (71) slidably connected to the basket (2) and capable of unlocking the first locking component (3) when sliding, and a second operating member (72) slidably connected to the base (1) and connected to the first operating member (71), and when the first operating member (71) slides, the second operating member (72) is driven by the first operating member (71) to unlock the second locking component (4); the basket (2) includes a basket body (21) and a locking bracket (22) connected to the basket body (21) and protruding outward. The basket (21) is detachably connected to the base (1) via a locking bracket (22). The second locking assembly (4) is located between the locking bracket (22) and the base (1). The second locking assembly (4) includes a locking element (41) rotatably connected to the base (1). The locking element (41) has a locking position (411) that allows the front end of the locking bracket (22) to engage. When the locking element (41) is rotated into position, the locking position (411) and the base (1) cooperate to form a closed space (42) to lock the front end of the locking bracket (22). An elastic reset member (43) is provided between the locking element (41) and the base (1). A locking member (44) is also slidably connected to the base (1) so that the locking element (41) can engage with the base (1) when it rotates to the position, thereby keeping the locking element (41) in a locked state. The second operating member (72) is connected to the base (1) and can be driven by the first operating member (71) when the first operating member (71) slides, thereby causing the locking member (44) to separate from the locking element (41). A reset spring (46) is also provided between the second operating member (72) and the base (1).

2. The child safety seat locking and unlocking mechanism according to claim 1, characterized in that: The adapter (5) is provided with a snap-fit ​​position (51). The first locking component (3) includes a snap-fit ​​member (31) that is rotatably connected to the basket (2) and can snap-fit ​​or disengage from the snap-fit ​​position (51) of the adapter (5). An elastic member (32) is provided between the snap-fit ​​member (31) and the basket (2) to allow the snap-fit ​​member (31) to reset. A pull element (33) is also connected between the first operating member (71) and the snap-fit ​​member (31) to allow the snap-fit ​​member (31) to disengage from the snap-fit ​​position (51) when the first operating member (71) is operated.

3. The child safety seat locking and unlocking mechanism according to claim 2, characterized in that: The latching component (31) is a latching hook that is rotatably connected to the basket (2), and the latching position (51) is a latching block that can latch with the latching hook.

4. The child safety seat locking and unlocking mechanism according to claim 1, characterized in that: The locking component (44) includes a sliding rod (441). The base (1) is provided with a locking hole (11) for the sliding rod (441) to be inserted. The sliding rod (441) is provided with an extension (442) that extends downward and passes through the second operating component (72) and the base (1) in sequence. The second operating component (72) is provided with a driving groove (721) that can press against the extension (442) to drive the sliding rod (441) to slide laterally and disengage from the locking element (41). The base (1) is also provided with a guide groove (12) that allows the extension (442) to slide.

5. The child safety seat locking and unlocking mechanism according to claim 1, characterized in that: The locking element (41) includes a locking piece (412), and the locking position (411) is a slot provided on the locking piece (412) that allows the front end of the locking bracket (22) to be inserted. The locking piece (412) is also provided with a top part (413) that can abut against the locking member (44) after it is rotated into position, so that the locking element (41) can be kept in a locked state.

6. The child safety seat locking and unlocking mechanism according to claim 1, characterized in that: The front end of the latching bracket (22) is provided with a first connecting part (221) that can be latched and connected with the latching element (41), the rear end of the latching bracket (22) is provided with a second connecting part (222), and the base (1) is provided with a latching part (16) that can be latched into the second connecting part (222).

7. The child safety seat locking and unlocking mechanism according to claim 1, characterized in that: The base (1) includes a base lower cover (13) and a base upper cover (14) connected to the base lower cover (13). The base lower cover (13) is provided with a connecting post (15), and the locking element (41) is rotatably connected to the connecting post (15).

Citation Information

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