A stroller that is easy to fold for storage

Abstract

The utility model discloses a baby stroller convenient to fold and store, including front wheel arm, rear wheel arm and handrail arm through the rotation axle joint, the symmetrical sleeve of sliding pull handle is equipped on handrail arm, and sliding pull handle is connected on the rotation wheel one of rotation axle joint through pull rope, and the rotation axle joint includes the front rotation arm, rear rotation arm and handrail rotation arm of coaxial rotation connection, and the spring cavity no.

Description

Technical Field

[0001] This utility model relates to the field of baby stroller technology, and in particular to a baby stroller that is easy to fold and store. Background Technology

[0002] In daily life, especially during family outings with infants and toddlers, strollers have become an essential choice for people. Currently, there are many types of folding strollers. One common folding method is to press the buttons on the folding joints. This method requires bending over and turning your head to press two symmetrically placed buttons simultaneously, which is quite difficult. Another method is to adjust the rotating joint by controlling the pull cord. However, this type of folding adjustment generally suffers from poor stability, and the folding performance needs further improvement. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a baby stroller that is easy to fold and store. The baby stroller uses a pull rope as a folding connection mechanism, which can be folded in one go when the baby is standing. It uses two sets of gear discs at the front and rear as locking mechanisms for the joints, which provides strong stability and safety.

[0004] A foldable baby stroller includes a front wheel arm, a rear wheel arm, and an armrest arm connected by a rotating shaft joint. The armrest arm is symmetrically fitted with a sliding handle, which is connected to a rotating wheel of the rotating shaft joint via a pull cord. The rotating shaft joint includes a front rotating arm, a rear rotating arm, and an armrest rotating arm coaxially rotatably connected. A spring cavity is formed between the rear rotating arm and the armrest rotating arm. A spring return assembly is provided within the spring cavity to limit the rotation of the rear rotating arm and the armrest rotating arm. A second spring cavity is formed between the front rotating arm and the rear rotating arm. A spring limiting assembly is provided within the spring limiting assembly to limit the rotation of the front rotating arm and the rear rotating arm. By pulling the sliding handle, the limiting forces of the first and second spring limiting assemblies can be released sequentially, allowing the armrest arm and the rear wheel arm to be folded sequentially.

[0005] As a preferred embodiment of the above technical solution, the elastic reset component includes a gear disk, the gear disk being axially slidably limited within the spring cavity, a compression spring being provided between the gear disk and the rear rotating arm, a rotating wheel being disposed between the gear disk and the armrest rotating arm, and a sliding boss assembly being provided opposite to the gear disk and the rotating wheel. During rotation, the rotating wheel achieves axial movement of the gear disk through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

[0006] As a preferred embodiment of the above technical solution, the elastic reset component two includes a gear disk two, the gear disk two being axially slidably limited within the spring cavity two, a compression spring two being provided between the gear disk two and the front rotating arm, and a rotating wheel two being provided between the gear disk two and the rear rotating arm. The rotating wheel two rotates synchronously with the armrest rotating arm, and a sliding boss assembly is provided between the gear disk two and the rotating wheel two. During rotation, the rotating wheel two achieves axial movement of the gear disk two through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

[0007] As a preferred embodiment of the above technical solution, the rear rotating arm and the gear disk are respectively provided with positioning grooves to limit the compression spring.

[0008] As a preferred embodiment of the above technical solution, the front rotating arm and the second gear disk are respectively provided with positioning pins and positioning grooves to limit the second compression spring.

[0009] As a preferred embodiment of the above technical solution, a convex shaft is coaxially fixed on the armrest rotating arm to radially limit the first elastic reset component, the rear rotating arm, the second elastic reset component, and the front rotating arm. The armrest rotating arm is rotatably connected to the front rotating arm through the convex shaft.

[0010] As a preferred embodiment of the above technical solution, the top of the rear rotating arm is integrally formed with a slot for installing a sleeping basket.

[0011] The beneficial effects of this utility model are as follows:

[0012] This baby stroller uses a sliding handle as the folding mechanism, and the sliding handle is located near the top of the armrest. The operator can trigger the folding in one go without bending over. It is flexible to operate and easy to fold. It adopts a locking mechanism with double spring chambers and double gear discs, which is highly stable and safe. Attached Figure Description

[0013] Figure 1 This is a sectional view of the joint of the rotating shaft.

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0015] The attached diagram is labeled as follows: 1-Front wheel arm, 2-Rear wheel arm, 3-Handrail arm, 4-Sliding handle, 5-Front rotating arm, 6-Rear rotating arm, 7-Handrail rotating arm, 8-Spring cavity one, 9-Spring cavity two, 10-Gear disk one, 11-Compression spring one, 12-Rotating wheel one, 13-Gear disk two, 14-Compression spring two, 15-Rotating wheel two, 16-Positioning groove one, 17-Positioning post, 18-Positioning groove two, 19-Protruding shaft, 20-Slot. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below 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 creative effort are within the scope of protection of this utility model.

[0017] like Figure 1 , Figure 2 The stroller shown is easy to fold and store, including a front wheel arm 1, a rear wheel arm 2, and an armrest arm 3 connected by a rotating shaft joint. A sliding handle 4 is symmetrically mounted on the armrest arm 3. The sliding handle 4 is connected to a rotating wheel of the rotating shaft joint via a pull cord. The rotating shaft joint includes a front rotating arm 5, a rear rotating arm 6, and an armrest rotating arm 7 coaxially rotatably connected. A spring cavity 8 is formed between the rear rotating arm 6 and the armrest rotating arm 7. A spring return assembly 1 for limiting the rotation of the rear rotating arm 6 and the armrest rotating arm 7 is provided within the spring cavity 8. A second spring cavity 9 is formed between the front rotating arm 5 and the rear rotating arm 6. A spring limiting assembly 2 for limiting the rotation of the front rotating arm 5 and the rear rotating arm 6 is provided within the spring limiting assembly 2. By pulling the sliding handle 4, the limiting of the first and second spring limiting assemblies can be released sequentially, allowing the armrest arm 3 and the rear wheel arm 2 to be folded sequentially. Specifically, the front rotating arm 5, the rear rotating arm 6, and the handrail rotating arm 7 are fixedly connected to the front wheel arm 1, the rear wheel arm 2, and the handrail arm 3, respectively.

[0018] In this embodiment, the elastic reset component includes a gear disk 10, which is axially slidably limited within the spring cavity 8. A compression spring 11 is provided between the gear disk 10 and the rear rotating arm 6. A rotating wheel 12 is located between the gear disk 10 and the armrest rotating arm 7. A sliding boss assembly is provided opposite to the gear disk 10 and the rotating wheel 12. During rotation, the rotating wheel 12 achieves axial movement of the gear disk 10 through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

[0019] In this embodiment, the second elastic reset component includes a second gear disk 13, which is axially slidably limited within the second spring cavity 9. A second compression spring 14 is provided between the second gear disk 13 and the front rotating arm 5. A second rotating wheel 15 is provided between the second gear disk 13 and the rear rotating arm 6. The second rotating wheel 15 rotates synchronously with the armrest rotating arm 7. A sliding boss assembly is provided opposite to the second gear disk 13 and the second rotating wheel 15. During rotation, the second rotating wheel 15 achieves axial movement of the second gear disk 13 through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

[0020] In this embodiment, the rear rotating arm 6 and the gear disk 10 are respectively provided with positioning grooves 16 to limit the compression spring 11.

[0021] In this embodiment, the front rotating arm 5 and the gear disk 13 are respectively provided with positioning pins 17 and positioning grooves 18 to limit the compression spring 14.

[0022] In this embodiment, a convex shaft 19 is coaxially fixed on the armrest rotating arm 7 to radially limit the first elastic reset component, the rear rotating arm 6, the second elastic reset component, and the front rotating arm 5. The armrest rotating arm 7 is rotatably connected to the front rotating arm 5 through the convex shaft 19.

[0023] In this embodiment, the top of the rear rotating arm 6 is integrally formed with a slot 20 for mounting a sleeping basket.

[0024] The working principle of this embodiment is as follows.

[0025] One-time folding: Slide the sliding handle 4 on the armrest arm 3 upwards with both hands simultaneously. The pull rope will pull the rotating wheel 12 to rotate. While the rotating wheel 12 is rotating, the rotating wheel 12 and the gear disk 10 will slide backwards towards the rotating arm 6 along the axial direction under the sliding and squeezing action of their corresponding sliding boss components. After the gear disk 10 has completely slid into the rotating arm 6, the restriction on the armrest rotating arm 7 will be released. Pressing down on the armrest arm 3 will achieve one-time folding.

[0026] During the second folding process, the rotating wheel 15 rotates synchronously with the armrest rotating arm 7 under the limiting action of the convex shaft 19. While the rotating wheel 15 rotates, the rotating wheel 15 and the gear disk 13 slide forward along the axial direction of the rotating arm 5 under the sliding and pressing action of their corresponding sliding boss components. After the armrest 3 is folded into place once, the gear disk 13 completely slides into the front rotating arm 5 and releases the restriction on the rear rotating arm 2. Continuing to rotate the rear wheel arm 2 can achieve the second folding.

[0027] When the stroller needs to be unfolded again, the armrest arm 3 and the rear wheel arm 2 are rotated in opposite directions. Under the action of compression spring 11 and compression spring 24, the internal structure of the rotating shaft joint is reset, and the front wheel arm 1, the rear wheel arm 2 and the armrest arm 3 are locked again while the stroller is unfolded.

[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 that is easy to fold for storage, characterized by: The device includes a front wheel arm, a rear wheel arm, and an armrest arm connected by a rotating shaft joint. A sliding handle is symmetrically fitted on each armrest arm, and the sliding handle is connected to a rotating wheel of the rotating shaft joint via a pull rope. The rotating shaft joint includes a front rotating arm, a rear rotating arm, and an armrest rotating arm coaxially rotatably connected. A spring cavity is formed between the rear rotating arm and the armrest rotating arm, and a spring reset assembly is provided within the spring cavity to limit the rotation of the rear rotating arm and the armrest rotating arm. A second spring cavity is formed between the front rotating arm and the rear rotating arm, and a spring limiting assembly is provided within the spring limiting the rotation of the front rotating arm and the rear rotating arm. By pulling the sliding handle, the limiting forces of the first and second spring reset assemblies can be released sequentially, allowing the armrest arm and the rear wheel arm to be folded sequentially.

2. The baby stroller that is easy to fold and store according to claim 1, characterized in that: The elastic reset component includes a gear disk, which is axially slidably limited within the spring cavity. A compression spring is provided between the gear disk and the rear rotating arm. A rotating wheel is located between the gear disk and the armrest rotating arm. A sliding boss assembly is provided between the gear disk and the rotating wheel. During rotation, the rotating wheel achieves axial movement of the gear disk through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

3. The stroller of claim 1, wherein: The second elastic reset component includes a second gear disk, which is axially slidably limited within the second spring cavity. A second compression spring is provided between the second gear disk and the front rotating arm, and a second rotating wheel is provided between the second gear disk and the rear rotating arm. The second rotating wheel rotates synchronously with the armrest rotating arm. A sliding boss assembly is provided between the second gear disk and the second rotating wheel. During rotation, the second rotating wheel achieves axial movement of the second gear disk through the misaligned squeezing and sliding of the two sets of sliding boss assemblies.

4. The stroller of claim 2, wherein: The rear rotating arm and the gear disk are respectively provided with positioning grooves to limit the compression spring.

5. The stroller of claim 3, wherein: The front rotating arm and the second gear disk are respectively provided with positioning pins and positioning grooves to limit the second compression spring.

6. The stroller of claim 1, wherein: The armrest rotating arm is coaxially fixed with a convex shaft that radially limits the first elastic reset component, the rear rotating arm, the second elastic reset component, and the front rotating arm. The armrest rotating arm is rotatably connected to the front rotating arm through the convex shaft.

7. A baby stroller that is easy to fold and store according to claim 1, characterized in that: The top of the rear rotating arm has an integrally formed slot for mounting a sleeping basket.

Images