Child seat structure

By setting limit blocks and limit slots on the seat pocket interface of the child cart seat pocket, the problem of automatic opening of the seat bracket when folding is solved, improving the reliability of the folding process and ensuring the smooth completion of the folding vehicle.

WO2025102730A1PCT designated stage expired Publication Date: 2025-05-22KUNSHAN VIGORKIDS CHILD PROD
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Patent Information

Application Number
PCT/CN2024/100061
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-13
Filing Date
2024-06-19
Publication Date
2025-05-22

AI Technical Summary

Technical Problem

When the existing children's cart seat bag is folded, due to the lack of a limit structure, the seat cushion may automatically open under the action of self-weight, affecting the subsequent folding of the frame.

Method used

By setting a limit block and limit slot on the seat pocket interface seat, ensure that the folded seat cushion is snapped into the limit slot by the limit block to avoid automatic opening.

Benefits of technology

It improves reliability during the folding process, ensures that the folding operation of the whole vehicle can be completed smoothly, and avoids the problem of automatic opening of the seat cushion.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024100061_22052025_PF_FP_ABST
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Abstract

A child seat structure, comprising a seat body and seat connector bases (1). The seat body comprises a backrest frame (2) which can be adjusted front and back relative to the seat connector bases (1), and a cushion frame (3) which can rotate relative to the seat connector bases (1) and is folded with the backrest frame (2); a limiting block (4) capable of sliding relative to the corresponding seat connector base (1) and extending out is provided on the side of the seat connector base (1) close to the cushion frame (3); a first reset member (5) is provided between each limiting block (4) and the corresponding seat connector base (1); a first limiting slot (6) allowing the corresponding limiting block (4) to be snap-fitted in is formed in the side of the cushion frame (3) close to the seat connector base (1); and when the cushion frame (3) is at a folded position, the limiting blocks (4) are snap-fitted in the first limiting slots (6) to limit the folding of the cushion frame (3). When the cushion frame (3) of the structure is folded with the backrest frame (2), the folded cushion frame (3) is limited by means of the limiting blocks (4), preventing the folded cushion frame (3) from being automatically unfolded under the action of self-weight to affect the subsequent folding operation of a stroller frame.
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Description

Child seat structure Technical Field

[0001] The invention relates to a child seat structure. Background Art

[0002] As people's living standards continue to improve, they have higher expectations for consumer products, especially those with aesthetically pleasing appearance, ease of use and portability, and space-saving features. As a product that parents cherish for their babies, strollers should be safe, reliable, aesthetically pleasing, comfortable, and easy to use.

[0003] In the prior art, to facilitate placement of a seat pocket on a bicycle frame and facilitate folding the frame, the seat pocket is typically detachably attached to the frame. To fold the seat pocket, the frame can be folded, or the seat pocket can be left on and folded separately. The seat pocket is typically folded by flipping up the seat cushion frame to fold it against the backrest frame. However, since the folded seat cushion frame lacks a retaining structure, the seat cushion frame may automatically open under its own weight, hindering subsequent frame folding.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a child seat structure, in which after the seat cushion frame and the backrest frame are folded, the folded seat cushion frame is limited by a limit block to prevent it from automatically opening under the action of its own weight and affecting the subsequent folding operation of the frame. The structure is novel and simple, and the reliability of the folding process is improved so that the folding operation of the entire vehicle can be completed smoothly.

[0006] The technical solution of the present invention is: a child seat structure, comprising a seat body and a seat interface seat, the seat body being detachably mounted on the stroller through the seat interface seat, the seat body comprising a backrest frame that can be adjusted forward and backward relative to the seat interface seat, a seat cushion frame that can be rotated relative to the seat interface seat and folded with the backrest frame, a side of the seat interface seat close to the seat cushion frame is provided with a limit block that can slide and extend relative to the seat cushion frame, a first reset member is provided between the limit block and the seat interface seat, and a side of the seat cushion frame close to the seat interface seat is provided with a first limit groove for the limit block to be snapped into; when the seat cushion frame is in the folded position, the limit block is snapped in the first limit groove to realize folding limit of the seat cushion frame.

[0007] As a further improvement of the present invention, the first limiting groove is a V-shaped groove.

[0008] As a further improvement of the present invention, a second limiting groove for a limiting block to be inserted into is provided on the side of the seat cushion frame close to the seat pocket interface seat; when the seat cushion frame is in the use position, the limiting block is inserted into the second limiting groove to limit the expansion of the seat cushion frame.

[0009] As a further improvement of the present invention, the second limiting grooves are all V-shaped grooves.

[0010] As a further improvement of the present invention, the seat pocket interface seat has an insertion interface that can be plugged into and matched with the seat pocket mounting seat of the frame of the stroller, and a locking component for locking the seat pocket interface seat and the seat pocket mounting seat.

[0011] As a further improvement of the present invention, the locking assembly includes an adjusting button that can slide radially relative to the seat pocket interface seat and one end of which extends out of the seat pocket interface seat to form a pressing portion, a locking block that can slide axially relative to the seat pocket interface seat and one end of which extends out of the seat pocket interface seat for locking the seat pocket mounting seat, a second reset member arranged between the locking block and the seat pocket interface seat, and a third reset member arranged between the adjusting button and the seat pocket interface seat; the adjusting button and the locking block are fitted through an inclined sliding surface, and when unlocking is required, the locking block is retracted by pressing the adjusting button to release the lock on the seat pocket mounting seat.

[0012] As a further improvement of the present invention, a pause button that can slide relative to the seat pocket interface seat is provided in the seat pocket interface seat, a fourth reset member is provided between the pause button and the seat pocket interface seat, and a pause slot is provided on the adjustment button; when the adjustment button is pressed to the unlocked position, the pause button pops out under the action of the fourth reset member and is stuck in the pause slot of the adjustment button, thereby realizing the unlocking and pausing of the locking assembly.

[0013] As a further improvement of the present invention, the backrest frame is rotatably mounted on the inner side of the seat pocket interface seat, and a backrest angle adjustment mechanism is provided between the backrest frame and the seat pocket interface seat.

[0014] As a further improvement of the present invention, the seat pocket body further includes a front armrest, which is rotatably mounted between the seat cushion frame and the backrest frame, and has a use position and a folding position.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. After the seat cushion frame and the backrest frame of the present invention are folded, the folded seat cushion frame is limited by the limit block to prevent it from automatically opening under the action of its own weight and affecting the subsequent folding operation of the frame. The structure is novel and simple, which improves the reliability of the folding process so that the folding operation of the entire vehicle can be completed smoothly.

[0017] 2. The seat pocket interface seat of the present invention is provided with a locking assembly for locking the seat pocket interface seat and the seat pocket mounting seat, and a pause piece is further provided in the seat pocket interface seat for keeping the locking assembly in an unlocked state. The overall structure is simple, and the setting of the pause piece can further simplify the disassembly operation. When the seat pocket is detached, there is no need to press the adjustment button at the same time, making disassembly more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0020] FIG1 is a schematic diagram of the assembly structure of the present invention;

[0021] FIG2 is a schematic diagram of the assembly structure of the right joint in FIG1 ;

[0022] FIG3 is a schematic diagram of the assembly structure of the left joint in FIG1 ;

[0023] FIG4 is a schematic structural diagram of the present invention when installed on a child stroller and in an unfolded state;

[0024] FIG5 is a schematic structural diagram of the present invention when it is installed on a child stroller and is in a folded state.

[0025] Among them: 1 seat pocket interface seat; 101 plug interface; 2 backrest frame; 3 cushion frame; 4 limit block; 5 first reset member; 6 first limit slot; 7 second limit slot; 8 front armrest; 9 locking assembly; 901 adjustment button; 9011 pause slot; 902 locking block; 903 second reset member; 904 third reset member; 10 pause button; 11 fourth reset member. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. It is understood that, in the absence of conflict, some technical means of the various embodiments described herein can be replaced or combined with each other.

[0027] In the description and claims of this application, the terms "first," "second," etc., are used solely to distinguish the objects being described and do not convey any order or technical meaning. Therefore, a term specified as "first," "second," etc. may explicitly or implicitly include one or more of such objects. Furthermore, "a," "an," and similar terms do not denote a limitation of quantity, but rather indicate the presence of at least one, and "plurality" means at least two.

[0028] In the description of the specification and claims of this application, if there are terms such as "connect", "install", "fix", "accommodate", etc., unless otherwise specified, they should be understood in a broad sense. For example, "connection" can be a separate connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection. For another example, "accommodate" does not necessarily mean complete accommodation of the entire body. This concept also includes the accommodation of a part that protrudes from the outside. For those skilled in the art, the specific meanings of the aforementioned terms in this application can be understood according to the specific circumstances.

[0029] In the description and claims of this application, if there are terms such as "upper," "lower," and "horizontal" indicating orientations or positional relationships, these are based on the orientations or positional relationships shown in the accompanying drawings. They are used only to facilitate a clear and simplified description of this application and are not intended to indicate or imply that the elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. These directional terms are relative concepts and are used for relative description and clarification. They may change accordingly depending on the orientation of the components in the drawings. For example, if the device in the figure is turned over, elements described as "below" other elements would be positioned "above" the other elements.

[0030] In the description of the specification and claims of this application, if the term "if" is present, it can generally be interchanged with "when" or "at" or "in response to determining" or "in response to detecting", depending on the context.

[0031] In the description of the specification and claims of this application, if there is a "direction" of movement, including movement with a directional component, the term "in the direction" is not necessarily understood as movement only in that one direction. For those skilled in the art, the specific meaning of the aforementioned terms in this application can be understood according to the specific circumstances.

[0032] As shown in Figures 1 to 5, a child seat structure includes a seat body and a seat interface seat 1. The seat body can be detachably mounted on a child stroller through the seat interface seat 1. The seat body includes a backrest frame 2 that can be adjusted forward and backward relative to the seat interface seat 1, and a seat cushion frame 3 that can be rotated relative to the seat interface seat 1 and folded with the backrest frame 2. The side of the seat interface seat 1 close to the seat cushion frame 3 is provided with a limit block 4 that can slide and extend relative to the seat cushion frame 3, and a first reset member 5 is provided between the limit block 4 and the seat interface seat 1. The side of the seat cushion frame 3 close to the seat interface seat 1 is provided with a first limit groove 6 for the limit block 4 to be snapped into; when the seat cushion frame 3 is in the folded position, the limit block 4 is snapped into the first limit groove 6 to limit the seat cushion frame 3 to a folding position.

[0033] In this embodiment, the seat cushion frame 3 is further provided with a second limiting groove 7 on a side adjacent to the seat pocket interface 1, into which the limiting block 4 is engaged. When the seat cushion frame 3 is in the use position, the limiting block 4 is engaged in the second limiting groove 7, thereby limiting the deployment of the seat cushion frame 3. In the prior art, when the seat cushion frame 3 is deployed and in use, it has a limiting structure that prevents the seat cushion frame 3 from further tilting downward, but this generally does not restrict the movement of the seat cushion frame 3 in other directions. Therefore, the design of the second limiting groove 7, based on the prior art, further limits the stability of the seat cushion frame 3 when deployed and in use, thereby preventing it from shaking.

[0034] Among them, the first limiting groove 6 and the second limiting groove 7 are preferably V-shaped grooves, so that when the seat cushion frame 3 is forced to flip, the limiting block 4 can automatically withdraw from the corresponding first limiting groove 6 or second limiting groove 7. Of course, the first limiting groove 6 and the second limiting groove 7 are not limited to V-shaped grooves, and they only need to have guide surfaces that are convenient for sliding in and out. In the figure of this embodiment, the seat cushion frame 3 is rotatably mounted on the inner side of the seat pocket interface seat 1, and the limiting block 4 is axially slidable (left and right sliding) relative to the seat pocket interface seat 1 and extends inward, while the first limiting groove 6 and the second limiting groove 7 are V-shaped with a small opening at the inner end and a large opening at the outer end.

[0035] In this embodiment, the backrest frame 2 is rotatably mounted on the inner side of the seat pocket interface 1, and a backrest angle adjustment mechanism is provided between the backrest frame 2 and the seat pocket interface 1. The above-mentioned backrest frame 2 mounting structure and backrest angle adjustment mechanism are common in the art and are not specifically limited or described herein.

[0036] In this embodiment, the seat body further includes a front armrest 8, which is rotatably mounted between the seat cushion frame 3 and the backrest frame 2 and has a use position and a folded position. The structure and application of the front armrest 8 are common in the art and are therefore not specifically limited or elaborated upon herein.

[0037] After the seat cushion frame 3 and the backrest frame 2 of the present invention are folded, the folded seat cushion frame 3 is limited by the limit block 4 to prevent it from automatically opening under the action of its own weight and affecting the subsequent frame folding operation. The structure is novel and simple, which improves the reliability of the folding process so that the folding operation of the entire vehicle can be completed smoothly.

[0038] In this embodiment, the seat pocket interface seat 1 has an insertion port 101 that can be plugged into the seat pocket mounting seat of the stroller frame and a locking assembly 9 for locking the seat pocket interface seat 1 with the seat pocket mounting seat.

[0039] In this embodiment, the locking assembly 9 includes an adjusting button 901 that can slide radially relative to the seat pocket interface seat 1 and one end of which extends out of the seat pocket interface seat 1 to form a pressing portion, a locking block 902 that can slide axially relative to the seat pocket interface seat 1 and one end of which extends out of the seat pocket interface seat 1 for locking the seat pocket mounting seat, a second reset member 903 arranged between the locking block 902 and the seat pocket interface seat 1, and a third reset member 904 arranged between the adjusting button 901 and the seat pocket interface seat 1; the adjusting button 901 and the locking block 902 are fitted through inclined sliding.

[0040] In this embodiment, a pause button 10 that can slide relative to the seat pocket interface seat 1 is provided in the seat pocket interface seat 1, a fourth reset member 11 is provided between the pause button 10 and the seat pocket interface seat 1, and a pause slot 9011 is provided on the adjustment button 901.

[0041] In this embodiment, in order to facilitate the installation of the locking assembly 9 , the pause button 10 and the fourth reset member 11 , the seat pocket interface seat 1 is configured to be assembled from an inner left body 102 and an outer seat body 103 .

[0042] When the seat pocket of the present invention is detached from the stroller, pressing the adjustment button 901 causes the locking block 902 to retract, thereby releasing the lock on the seat pocket mounting base. When the adjustment button 901 is pressed to the unlocked position, the pause button 10 is ejected by the fourth reset member 11 and engages the pause slot 9011 of the adjustment button 901, thereby pausing the unlocking of the locking assembly 9. At this point, the locking assembly 9 remains unlocked, and the seat pocket can be separated from the stroller by lifting it.

[0043] The seat pocket interface seat 1 of the present invention is provided with a locking assembly 9 for locking the seat pocket interface seat 1 with the seat pocket mounting seat, and a pause member 10 is further provided in the seat pocket interface seat 1 for keeping the locking assembly 9 in an unlocked state. The overall structure is simple, and the provision of the pause member 10 can further simplify the disassembly operation. When the seat pocket is detached, there is no need to press the adjustment button 901 at the same time, making disassembly more convenient and quick.

[0044] In the description of this specification, the use of terms such as "preferred" or "optional" as preferred embodiments of the present invention indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The above embodiments are merely illustrative of the detailed embodiments of the present invention. The present invention is not limited to the detailed embodiments described above, nor does it necessarily rely on the detailed embodiments to be implemented. Those skilled in the art will appreciate that any improvements to the present invention, equivalent replacements of raw materials for the products of the present invention, addition of auxiliary ingredients, and selection of specific methods, etc., fall within the scope of protection and disclosure of the present invention.

Claims

1. A child seat structure, comprising a seat body and a seat interface, wherein the seat body can be detachably mounted on a child stroller through the seat interface, wherein the seat body comprises a backrest frame that can be adjusted forward and backward relative to the seat interface, and a cushion frame that can rotate relative to the seat interface and fold with the backrest frame, wherein: A limit block which can slide and extend relative to the seat pocket interface seat is provided on one side of the seat pocket interface seat close to the seat cushion frame, a first reset piece is provided between the limit block and the seat pocket interface seat, and a first limit groove for the limit block to be inserted into is provided on one side of the seat cushion frame close to the seat pocket interface seat; when the seat cushion frame is in the folding position, the limit block is inserted in the first limit groove to limit the seat cushion frame in a folding position.

2. A child seat structure according to claim 1, characterized in that: The first limiting groove is a V-shaped groove.

3. The child seat structure according to claim 1, characterized in that: A second limiting groove for a limiting block to be inserted into is also provided on one side of the seat cushion frame close to the seat pocket interface seat; when the seat cushion frame is in the use position, the limiting block is inserted into the second limiting groove to limit the unfolding of the seat cushion frame.

4. A child seat structure according to claim 2, characterized in that: The second limiting grooves are all V-shaped grooves.

5. The child seat structure according to claim 1, characterized in that: The seat pocket interface seat has an insertion port which can be plugged and matched with the seat pocket mounting seat of the frame of the child stroller and a locking component used for locking the seat pocket interface seat with the seat pocket mounting seat.

6. A child seat structure according to claim 5, characterized in that: The locking assembly includes an adjusting button which can slide radially relative to the seat pocket interface seat and one end of which extends out of the seat pocket interface seat to form a pressing portion, a locking block which can slide axially relative to the seat pocket interface seat and one end of which extends out of the seat pocket interface seat for locking the seat pocket mounting seat, a second reset member arranged between the locking block and the seat pocket interface seat, and a third reset member arranged between the adjusting button and the seat pocket interface seat; the adjusting button and the locking block are slidably matched with each other through an inclined surface, and when unlocking is required, the locking block is retracted by pressing the adjusting button to release the lock on the seat pocket mounting seat.

7. A child seat structure according to claim 6, characterized in that: A pause button that can slide relative to the seat pocket interface is provided in the seat pocket interface seat, and a fourth reset member is provided between the pause button and the seat pocket interface seat, and a pause slot is provided on the adjustment button; when the adjustment button is pressed to the unlocking position, the pause button pops out under the action of the fourth reset member and is inserted into the pause slot of the adjustment button, thereby realizing the unlocking and pausing of the locking assembly.

8. The child seat structure according to claim 1, characterized in that: The backrest frame is rotatably mounted on the inner side of the seat pocket interface seat, and a backrest angle adjustment mechanism is arranged between the backrest frame and the seat pocket interface seat.

9. The child seat structure according to claim 1, characterized in that: The seat pocket body also includes a front armrest, which is rotatably installed between the seat cushion frame and the backrest frame, and has a use position and a folding position.

Citation Information

Patent Citations

  • Seat pocket structure of baby carriage

    CN113071553A

  • Child seat pocket inserting structure

    CN114590308A

  • Seat pocket is for adjustment mechanism of frame

    CN207697798U

  • Child seat pocket inserting structure

    CN217074497U

  • Child seat pocket structure

    CN221138251U