Folding child stroller

Abstract

The utility model provides a folding baby stroller, which belongs to the technical field of baby strollers and comprises a rear leg body, a front leg body and a rear leg body, the front leg body is rotatably connected with the rear leg body; the middle part of the first connecting rod is rotatably connected with the rear leg body; one end of the second connecting rod is rotatably connected with the front leg body, and the other end of the second connecting rod is rotatably connected with one end of the first connecting rod; the push rod assembly is rotatably connected with the rear leg body and the front leg body; one end of the seat body is rotatably connected with the other end of the first connecting rod; the sliding block is movably connected with the seat body and can slide in the length direction of the seat body, and the sliding block is rotatably connected with a push rod assembly. The seat has the advantages that on the premise that the original function that the rear leg body and the front leg body are folded to drive the seat body to be folded is guaranteed, the requirement for manufacturing precision is not high, and errors are not prone to occurring in the assembling process.

Description

Technical Field

[0001] This utility model belongs to the field of children's stroller technology and relates to a folding children's stroller. Background Technology

[0002] In the present technology, children's strollers are often foldable for easy carrying and storage. There are many types of existing children's strollers, with different numbers of stroller frame members and different connection positions between the members, resulting in different folding principles and methods, and different effects after folding.

[0003] For example, an invention patent with application number CN202410847165.6 provides a children's stroller, including: a first rod body, which is provided with a first rotating part, a second rotating part, and a first linkage part; a second rod body, which is provided with a third rotating part and a second linkage part, the third rotating part being rotatably connected to the first rotating part; a third rod body, which is provided with a fourth rotating part and a fifth rotating part, the fourth rotating part being rotatably connected to the second rotating part; a fourth rod body, which is provided with a sixth rotating part and a third linkage part, the sixth rotating part being rotatably connected to the fifth rotating part; and a linkage assembly, which is connected to the first linkage part, the second linkage part, and the third linkage part.

[0004] In summary, while some existing technical solutions can achieve synchronous retraction and folding of the push rod through the rotation of the rear and front legs, they involve numerous connecting rods, which can easily lead to manufacturing precision issues during the manufacturing process, resulting in difficulties in assembly or incorrect assembly of different connecting rods. Therefore, there is considerable room for improvement. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a foldable children's stroller.

[0006] The objective of this utility model can be achieved through the following technical solution: a folding children's stroller, comprising:

[0007] Hind legs;

[0008] A foreleg body, which is rotatably connected to the hind leg body;

[0009] The first link, the middle part of which is rotatably connected to the rear leg body;

[0010] The second link has one end rotatably connected to the front leg body, and the other end rotatably connected to one end of the first link;

[0011] A push rod assembly that is rotatably connected to the rear leg body and the front leg body;

[0012] The seat body, one end of which is rotatably connected to the other end of the first link;

[0013] A slider is movably connected to the seat body and can slide along the length of the seat body; the slider is rotatably connected to the push rod assembly.

[0014] When the rear leg and the front leg approach each other, the first link and the second link rotate, thereby driving the slider and the seat to rotate, while the slider slides relative to the seat.

[0015] In the aforementioned folding stroller, the push rod assembly includes a lower push rod and an upper push rod. One end of the lower push rod is rotatably connected to the rear leg body and the front leg body, and the upper push rod is rotatably connected to the other end of the lower push rod.

[0016] In the aforementioned folding stroller, the upper push rod extends near the lower push rod to form a first linkage part, and the first connecting rod extends near the seat body to form a second linkage part, wherein the first linkage part is rotatably connected to the second linkage part.

[0017] The aforementioned folding stroller also includes a front armrest, which is rotatably connected to the lower push rod.

[0018] The aforementioned folding stroller also includes an unlocking component. The lower push rod is provided with a locking pin, and the front armrest is provided with a locking hole. The locking pin can be inserted into the locking hole to restrict the rotation of the front armrest. The locking pin is connected to the upper push rod through the unlocking component. When the upper push rod rotates, the unlocking component drives the locking pin away from the locking hole.

[0019] The aforementioned folding stroller also includes a first locking spring, which is located between the lower push rod and the locking pin. The first locking spring pushes the locking pin away from the lower push rod.

[0020] In the aforementioned folding stroller, the unlocking assembly includes an unlocking lever, which is movably connected to the lower push rod and can slide along the length of the lower push rod. The upper push rod is provided with a first linkage surface, the unlocking lever is provided with a second linkage surface and a third linkage surface, and the locking pin is provided with a fourth linkage surface. The first linkage surface contacts the second linkage surface. When the upper push rod rotates, the relative sliding between the first linkage surface and the second linkage surface pushes the unlocking lever away from itself. The third linkage surface contacts the fourth linkage surface. When the unlocking lever moves away from the upper push rod, the relative sliding between the third linkage surface and the fourth linkage surface pushes the locking pin away from the locking hole.

[0021] The aforementioned folding stroller also includes a second locking spring, which is located between the lower push rod and the unlocking rod. The second locking spring pushes the unlocking rod closer to the upper push rod.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. By setting a rotatable slider in the push rod assembly, the seat body can move relative to the slider, replacing part of the linkage structure in the existing technology. Therefore, while ensuring the original function of retracting the rear and front legs to drive the seat body to retract, the requirements for manufacturing precision are not high, and it is not easy to make mistakes during assembly.

[0024] 2. When the hind legs and front legs are folded together, they can be connected by the rotation of the first linkage and the second linkage, which simultaneously realizes the folding of the lower push rod and the upper push rod, integrating multiple folding steps into one.

[0025] 3. When the upper push rod rotates, the unlocking component drives the locking pin away from the locking hole, thereby realizing the linkage between the push rod component and the front armrest. When the push rod component is retracted, the locking pin that restricts the rotation of the front armrest moves away from the locking hole, and at this time the front armrest can rotate smoothly for folding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the folding stroller of this utility model in its unfolded state.

[0027] Figure 2 for Figure 1 An enlarged view of part A.

[0028] Figure 3 This is a schematic diagram of the folding stroller of this utility model in its folded state.

[0029] Figure 4 This is a schematic diagram of the internal structure of the push rod assembly and front handrail of this utility model under an explosion state.

[0030] Figure 5 This is a schematic diagram of the push rod assembly and front handrail of this utility model under an explosion condition.

[0031] Figure 6 This is a schematic diagram of the internal structure of the push rod of this utility model.

[0032] In the diagram, 100 is the rear leg; 200 is the front leg; 300 is the first link; 310 is the second linkage part; 400 is the second link; 510 is the lower push rod; 511 is the locking pin; 512 is the fourth linkage surface; 520 is the upper push rod; 521 is the first linkage part; 522 is the first linkage surface; 600 is the seat body; 700 is the slider; 800 is the front armrest; 810 is the locking hole; 900 is the unlocking rod; 910 is the second linkage surface; and 920 is the third linkage surface. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] like Figures 1-6 As shown, a folding stroller includes: a rear leg body 100, a front leg body 200, a first link 300, a second link 400, a push rod assembly, a seat body 600, and a slider.

[0040] The front leg body 200 is rotatably connected to the rear leg body 100.

[0041] The middle part of the first link 300 is rotatably connected to the rear leg body 100.

[0042] One end of the second link 400 is rotatably connected to the front leg body 200, and the other end of the second link 400 is rotatably connected to one end of the first link 300.

[0043] The push rod assembly is rotatably connected to the rear leg body 100 and the front leg body 200.

[0044] One end of the seat body 600 is rotatably connected to the other end of the first connecting rod 300.

[0045] The slider is movably connected to the seat body 600 and can slide along the length direction of the seat body 600; the slider is rotatably connected to the push rod assembly.

[0046] When the rear leg body 100 and the front leg body 200 approach each other, the first connecting rod 300 and the second connecting rod 400 rotate, thereby driving the slider and the seat body 600 to rotate, while the slider slides relative to the seat body 600.

[0047] In this embodiment, a rotatable slider is provided in the push rod assembly, so that the seat body 600 can move relative to the slider, replacing part of the linkage structure in the prior art. Therefore, while ensuring that the original function of retracting the rear leg body 100 and the front leg body 200 to drive the seat body 600 to retract exists, the requirements for manufacturing precision are not high, and it is not easy to make mistakes during assembly.

[0048] like Figures 1-6As shown, based on the above embodiment, the push rod assembly includes a lower push rod 510 and an upper push rod 520. One end of the lower push rod 510 is rotatably connected to the rear leg body 100 and the front leg body 200, and the upper push rod 520 is rotatably connected to the other end of the lower push rod 510.

[0049] In this embodiment, the push rod assembly is divided into a lower push rod 510 and an upper push rod 520, so that the push rod assembly can be further retracted.

[0050] like Figures 1-6 As shown, based on the above embodiment, the upper push rod 520 extends near the lower push rod 510 to form a first linkage part 521, and the first connecting rod 300 extends near the seat body 600 to form a second linkage part 310. The first linkage part 521 is rotatably connected to the second linkage part 310.

[0051] In this embodiment, when the rear leg body 100 and the front leg body 200 are folded together, they can be rotatably connected by the first linkage part 521 and the second linkage part 310, which simultaneously realizes the folding of the lower push rod 510 and the upper push rod 520, integrating multiple folding steps together.

[0052] like Figures 1-6 As shown, based on the above embodiment, a front armrest 800 is also included, which is rotatably connected to the lower push rod 510.

[0053] Furthermore, it also includes an unlocking component. The lower push rod 510 is provided with a locking pin 511, and the front armrest 800 is provided with a locking hole 810. The locking pin 511 can be inserted into the locking hole 810 to restrict the rotation of the front armrest 800. The locking pin 511 is connected to the upper push rod 520 through the unlocking component. When the upper push rod 520 rotates, the unlocking component drives the locking pin 511 away from the locking hole 810.

[0054] In this embodiment, when the upper push rod 520 rotates, the unlocking component drives the locking pin 511 away from the locking hole 810, thereby realizing the linkage between the push rod component and the front armrest 800. When the push rod component is retracted, the locking pin 511 that restricts the rotation of the front armrest 800 moves away from the locking hole 810, and at this time the front armrest 800 can rotate smoothly for folding.

[0055] Specifically, in one embodiment, the unlocking assembly includes an unlocking rod 900, which is movably connected to the lower push rod 510 and can slide along the length of the lower push rod 510. The upper push rod 520 is provided with a first linkage surface 522, the unlocking rod 900 is provided with a second linkage surface 910 and a third linkage surface 920, and the locking pin 511 is provided with a fourth linkage surface 512. The first linkage surface 522 is in contact with the second linkage surface 910. When the upper push rod 520 rotates, the relative sliding between the first linkage surface 522 and the second linkage surface 910 pushes the unlocking rod 900 away from itself. The third linkage surface 920 is in contact with the fourth linkage surface 512. When the unlocking rod 900 moves away from the upper push rod 520, the relative sliding between the third linkage surface 920 and the fourth linkage surface 512 pushes the locking pin 511 away from the locking hole 810.

[0056] Specifically, as another implementation, the unlocking component includes a flexible component such as a steel wire rope. One end of the steel wire rope is connected to the upper push rod 520, and the other end of the steel wire rope is connected to the locking pin 511. When the upper push rod 520 rotates, the steel wire rope pulls the locking pin 511 away from the locking hole 810.

[0057] like Figures 1-6 As shown, based on the above embodiment, a first locking spring (not shown in the figure) is also included. The first locking spring is located between the lower push rod 510 and the locking pin 511. The first locking spring pushes the locking pin 511 away from the lower push rod 510.

[0058] In this embodiment, the first locking spring is located between the lower push rod 510 and the locking pin 511 and is used to push the locking pin 511 away from the lower push rod 510 to realize the return of the locking pin 511. When the locking pin 511 is aligned with the locking hole 810 and the push rod assembly is in the extended state, the first locking spring pushes the locking pin 511 to insert into the locking hole 810.

[0059] like Figures 1-6 As shown, based on the above embodiment, a second locking spring (not shown in the figure) is also included. The second locking spring is located between the lower push rod 510 and the unlocking rod 900. The second locking spring pushes the unlocking rod 900 closer to the upper push rod 520.

[0060] In this embodiment, the second locking spring is located between the lower push rod 510 and the unlocking rod 900 and is used to push the unlocking rod 900 closer to the upper push rod 520 to realize the return of the unlocking rod 900. When the push rod assembly is in the extended state, the second locking spring pushes the unlocking rod 900 away from the locking pin 511.

Claims

1. A folding stroller, characterized in that, include: Hind legs (100); A foreleg body (200) rotatably connected to the hind leg body (100); The first link (300) is rotatably connected to the rear leg body (100) at its middle part; The second link (400) has one end rotatably connected to the front leg body (200), and the other end of the second link (400) is rotatably connected to one end of the first link (300); A push rod assembly, which is rotatably connected to the rear leg body (100) and the front leg body (200); A seat body (600), one end of which is rotatably connected to the other end of the first link (300); A slider (700) is movably connected to the seat body (600) and can slide along the length of the seat body (600), and the slider (700) is rotatably connected to the push rod assembly; When the rear leg body (100) and the front leg body (200) approach each other, the first link (300) and the second link (400) rotate, thereby driving the slider (700) and the seat body (600) to rotate, while the slider (700) slides relative to the seat body (600).

2. A folding stroller as described in claim 1, characterized in that: The push rod assembly includes a lower push rod (510) and an upper push rod (520). One end of the lower push rod (510) is rotatably connected to the rear leg body (100) and the front leg body (200), and the upper push rod (520) is rotatably connected to the other end of the lower push rod (510).

3. A folding stroller as described in claim 2, characterized in that: The upper push rod (520) extends near the lower push rod (510) to form a first linkage part (521), and the first connecting rod (300) extends near the seat body (600) to form a second linkage part (310). The first linkage part (521) is rotatably connected to the second linkage part (310).

4. A folding stroller as described in claim 2 or 3, characterized in that: It also includes a front armrest (800) which is rotatably connected to the lower push rod (510).

5. A folding stroller as described in claim 4, characterized in that: It also includes an unlocking component. The lower push rod (510) is provided with a locking pin (511). The front armrest (800) is provided with a locking hole (810). The locking pin (511) can be inserted into the locking hole (810) to restrict the rotation of the front armrest (800). The locking pin (511) is connected to the upper push rod (520) through the unlocking component. When the upper push rod (520) rotates, the unlocking component drives the locking pin (511) away from the locking hole (810).

6. A folding stroller as described in claim 5, characterized in that: It also includes a first locking spring located between the lower push rod (510) and the locking pin (511), the first locking spring pushing the locking pin (511) away from the lower push rod (510).

7. A folding stroller as described in claim 5, characterized in that: The unlocking assembly includes an unlocking lever (900), which is movably connected to the lower push rod (510) and can slide along the length of the lower push rod (510). The upper push rod (520) is provided with a first linkage surface (522), the unlocking lever (900) is provided with a second linkage surface (910) and a third linkage surface (920), and the locking pin (511) is provided with a fourth linkage surface (512). The first linkage surface (522) and the second linkage surface (910) are connected. When the upper push rod (520) rotates, the relative sliding of the first linkage surface (522) and the second linkage surface (910) pushes the unlocking rod (900) away from itself. The third linkage surface (920) contacts the fourth linkage surface (512). When the unlocking rod (900) moves away from the upper push rod (520), the relative sliding of the third linkage surface (920) and the fourth linkage surface (512) pushes the locking pin (511) away from the locking hole (810).

8. A folding stroller as described in claim 7, characterized in that: It also includes a second locking spring located between the lower push rod (510) and the unlocking rod (900), the second locking spring pushing the unlocking rod (900) closer to the upper push rod (520).

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