Baby stroller
The stroller with an articulated structure design solves the problem of existing strollers being inconvenient to fold, achieving easy folding and a small size, while providing a comfortable riding space.
Patent Information
- Application Number
- CN202520302690.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing baby strollers have complex structures and are not easy to fold, failing to meet users' needs for small size and light weight.
It adopts an articulated structure design, including a front wheel bracket, a rear wheel bracket, a front support rod, a rear support rod, a push rod, and a linkage assembly. Automatic folding is achieved through an unlock button. The front and rear support rods rotate synchronously, and the linkage assembly drives the seat assembly to fold synchronously.
It achieves easy folding of the stroller, which can be operated with only one hand. The folded size is small and easy to carry, and the seat component provides enough seating space.
Smart Images
Figure CN223644837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of children's vehicle technology, specifically to a baby stroller. Background Technology
[0002] Baby strollers, as an essential tool for infants and toddlers, are widely used. Currently, in addition to the basic requirements of sturdiness and safety, users are increasingly emphasizing features such as small size, lightweight design, and foldability. However, most current baby strollers have complex structures, making them inconvenient to fold and failing to meet these requirements. Utility Model Content
[0003] To address the above problems, this utility model provides a baby stroller with a simple structure and easy folding.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A baby stroller includes a front wheel bracket and a rear wheel bracket, which are hinged together by a hinge seat A. A front support rod is hinged to the upper end of the hinge seat A. A push rod is hinged to the front support rod via a hinge seat B. A rear support rod is hinged to the lower end of the hinge seat B. The lower end of the rear support rod is hinged to the front wheel bracket via a connecting rod assembly. A seat assembly is connected to the rear support rod.
[0006] As a preferred embodiment of the above solution, the linkage assembly includes a first linkage, a second linkage, and a third linkage. The lower part of the rear strut is hinged to the rear wheel bracket and the first linkage. The first linkage is hinged to the second linkage. The second linkage is hinged to the rear strut and the third linkage. The third linkage is hinged to the front wheel bracket.
[0007] As a preferred embodiment of the above solution, the seat assembly includes a front seat frame and a rear seat frame. The front end of the rear seat frame is hinged to the front seat frame, and the rear end is hinged to the rear support rod and the rear wheel bracket, respectively. A backrest frame is hinged to the upper end.
[0008] As a preferred embodiment of the above scheme, the rear seat frame is hinged to the front seat frame and the rear strut via hinge seat C and hinge seat D, respectively, and is hinged to the rear wheel bracket via a connecting piece.
[0009] As a preferred embodiment of the above scheme, the front end of the hinged seat A is hinged with a handrail.
[0010] As a preferred embodiment of the above scheme, a sunshade rod is hinged to the hinge seat B.
[0011] As a preferred embodiment of the above solution, wheels are installed on both the front wheel bracket and the rear wheel bracket.
[0012] Due to the above structure, the beneficial effects of this utility model are as follows:
[0013] 1. When folding, simply press the unlock button, then push forward and press down the push lever to make the front support rod and the rear support rod rotate synchronously. The rear support rod drives the front wheel bracket and seat assembly to rotate synchronously through the linkage assembly and connecting plate, thus achieving automatic folding. The operation is simple and quick, and can be achieved with only one hand. Moreover, the folded size is small, making it suitable for widespread application.
[0014] 2. The front and rear seat frames allow the stroller frame to have sufficient length in the fore-and-aft direction, providing a large enough seat even for larger babies, ensuring their comfort. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0016] Figure 1 This is a perspective view of the unfolded state of this utility model;
[0017] Figure 2 This is a side view of the unfolded state of this utility model;
[0018] Figure 3 This is a perspective view of the folded state of this utility model. Detailed Implementation
[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0020] like Figures 1 to 3 As shown, this embodiment provides a baby stroller, including a front wheel bracket 1 and a rear wheel bracket 2, which are hinged together by a hinge seat A3. A front support rod 4 is hinged to the upper end of the hinge seat A3. A push rod 6 is hinged to the front support rod 4 through a hinge seat B5. An unlock button 7 is provided on the push rod 6. A rear support rod 8 is hinged to the lower end of the hinge seat B5. The lower end of the rear support rod 8 is hinged to the front wheel bracket 1 through a connecting rod assembly. A seat assembly is connected to the rear support rod 8.
[0021] In this embodiment, the linkage assembly includes a first link 11, a second link 12, and a third link 13. The lower part of the rear support rod 8 is hinged to the rear wheel bracket 2 and the first link 11. The first link 11 is hinged to the second link 12. The second link 12 is hinged to the rear support rod 8 and the third link 13. The third link 13 is hinged to the front wheel bracket 1.
[0022] In this embodiment, the seat assembly includes a front seat frame 14 and a rear seat frame 15. The front end of the rear seat frame 15 is hinged to the front seat frame 14 via a hinge seat C17. The front seat frame 14 can rotate downward relative to the rear seat frame 15. The rear end of the rear seat frame 15 is hinged to the rear wheel bracket 2 via a connecting piece 18 and to the rear support rod 8 via a hinge seat D19. At the same time, the upper end is hinged to the backrest frame 16 via a hinge seat D19.
[0023] In this embodiment, the front end of the hinge seat A3 is hinged to a handrail 9.
[0024] In this embodiment, a sunshade rod 10 is hinged to the hinge seat B5. A locking device is installed in the hinge seat B5. The locking device can adopt existing technology (e.g., a locking pin connected to the unlocking button 7 via a rope in the push rod 6, a pin hole that cooperates with the locking pin in the hinge seat B5, etc.), which will not be described in detail in this embodiment. The locking device is connected to the unlocking button 7 and can be unlocked by pressing the unlocking button 7.
[0025] In this embodiment, wheels 20 are installed on both the front wheel bracket 1 and the rear wheel bracket 2.
[0026] The working principle of the above structure:
[0027] When folding is required, first unlock using the unlock button 7, allowing the push rod 6 to rotate relative to the front support rod 4. After unlocking, push the push rod 6 forward and then press it down. At this time, the hinge seat B5 drives the front support rod 4 and the rear support rod 8 to move closer to the rear wheel bracket 2. The rear support rod 8, through the linkage assembly, drives the front wheel bracket 1 to move closer to the rear wheel bracket 2. Simultaneously, the rear support rod 8, through the hinge seat D19, drives the rear seat frame 15, the backrest frame 16, and the rear seat frame 15 to move closer to the rear wheel bracket 2, finally folding the rear wheel bracket 2. Figure 3 As shown, it automatically folds. To unfold, simply pull the push lever 6 backward and upward with one hand. Folding and unfolding are simple and quick, requiring only one hand, and the folded size is small, making it suitable for widespread application.
[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A stroller, characterized by: The application relates to a handcart, which comprises a front wheel support (1), a rear wheel support (2), a front support rod (4) hinged to the upper end of a hinge seat A (3), a hand pushing rod (6) hinged to the front support rod (4) through a hinge seat B (5), a rear support rod (8) hinged to the lower end of the hinge seat B (5), a linkage assembly connecting the lower end of the rear support rod (8) with the front wheel support (1), and a seat assembly connected to the rear support rod (8).
2. A stroller according to claim 1, characterized in that: The linkage assembly comprises a first linkage (11), a second linkage (12) and a third linkage (13), the lower part of the rear support rod (8) is hinged to the rear wheel support (2) and the first linkage (11), the first linkage (11) is hinged to the second linkage (12), the second linkage (12) is hinged to the rear support rod (8) and the third linkage (13), and the third linkage (13) is hinged to the front wheel support (1).
3. A stroller according to claim 1, characterized in that: The seat assembly comprises a front seat frame (14) and a rear seat frame (15), the front end of the rear seat frame (15) is hinged to the front seat frame (14), the rear end of the rear seat frame (15) is hinged to the rear support rod (8) and the rear wheel support (2) respectively, and the upper end of the rear seat frame (15) is hinged to a backrest frame (16).
4. A stroller according to claim 3, characterized in that: The rear seat frame (15) is hinged to the front seat frame (14) and the rear support rod (8) through a hinge seat C (17) and a hinge seat D (19) respectively, and is hinged to the rear wheel support (2) through a connecting sheet (18).
5. A stroller according to claim 1, characterized in that: The hinge seat A (3) is hinged to a handrail (9) at the front end.
6. A stroller according to claim 1, characterized in that: The hinge seat B (5) is hinged to a sunshade rod (10) at the upper end.
7. A stroller according to claim 1, characterized in that: The front wheel support (1) and the rear wheel support (2) are both provided with wheels (20).