A folding stroller

Abstract

This application discloses a folding stroller, the frame of which includes an upper support; a front support, the upper part of which is rotatably connected to the lower part of the upper support; a rear support, the upper part of which is slidably connected to the front support via a first sliding member; a first connecting rod, the upper part of which is rotatably connected to the upper support, and the lower part of which is rotatably connected to the first sliding member and / or the rear support; a bottom support, the front part of which is rotatably connected to the front support, and the rear part of which is rotatably connected to the rear support; a seat frame, which is rotatably connected to the front support; and a seat frame linkage member, which is rotatably connected between the seat frame and the rear support. When the upper support is folded relative to the front support, the first connecting rod and the first sliding member cause the rear support and the front support to fold downward relative to the bottom support, and the seat frame is rotated and folded under the linkage of the seat frame linkage member. This application requires only one action to complete the folding, without the need for step adjustments, and is especially suitable for one-handed operation or quick storage scenarios.

Description

Technical Field

[0001] This application relates to the field of stroller technology, and more particularly to a folding stroller. Background Technology

[0002] As an essential tool for infants and toddlers' daily outings, the portability and functionality of strollers have always been key areas for design improvement. Traditional stroller frame folding methods typically involve manual, step-by-step operations, requiring separate folding of the frame and seat, which is cumbersome and inefficient. Especially when quick storage or unfolding is needed, users often have to spend a lot of time adjusting various parts, affecting the user experience. Summary of the Invention

[0003] The purpose of this application is to provide a folding stroller that, through a simple and reasonable structural design, allows the frame to naturally fold along with the seat during the folding process, reducing user operation steps and improving folding efficiency.

[0004] The technical solution of this application is: a folding stroller, including a frame having an unfolded state and a folded state, and a locking mechanism for locking the frame in the unfolded state, the frame including...

[0005] Upper bracket;

[0006] The front bracket, the upper part of which is rotatably connected to the lower part of the upper bracket;

[0007] The rear bracket has its upper part slidably connected to the front bracket via a first sliding member that is rotatably connected.

[0008] The first connecting rod has its upper part rotatably connected to the upper bracket and its lower part rotatably connected to the first sliding member and / or the rear bracket;

[0009] The base support is rotatably connected to the front support at its front end and rotatably connected to the rear support at its rear end.

[0010] A seat frame, which is rotatably connected to the front support;

[0011] A seat frame linkage component is rotatably connected between the seat frame and the rear support;

[0012] When the upper support is folded and retracted relative to the front support, the rear support and the front support are folded downwards relative to the bottom support under the action of the first connecting rod and the first sliding member, and the seat frame is rotated and retracted under the linkage of the seat frame linkage member.

[0013] As a preferred technical solution, the frame further includes a front wheel assembly and a rear wheel assembly, with the front wheel assembly mounted at the front of the base bracket and the rear wheel assembly mounted at the rear of the base bracket.

[0014] As a preferred technical solution, the seat frame linkage includes a first connecting sleeve that rotatably engages with the first crossbar at the front of the seat frame, a second connecting sleeve that rotatably engages with the second crossbar at the upper part of the rear support, and a second connecting rod connecting the first connecting sleeve and the second connecting sleeve.

[0015] As a preferred technical solution, the frame further includes an upper push handle that can be retracted relative to the upper support. Preferably, the upper push handle is slidably engaged with the upper support and can extend or retract relative to it.

[0016] As a preferred technical solution, the locking mechanism includes a first locking mechanism disposed between the push handle and the upper bracket, and a second locking mechanism disposed at the rotatable connection between the upper bracket and the front bracket. Preferably, the first locking mechanism and the second locking mechanism are linked; when the first locking mechanism is released and the push handle is retracted relative to the upper bracket, the second locking mechanism is automatically released.

[0017] As a preferred technical solution, the frame also includes a basket arm rotatably connected to the rear support, the lower end of which is slidably connected to the bottom support via a second sliding member rotatably connected.

[0018] Compared with the prior art, this application has the following advantages:

[0019] 1. This application adopts a novel integrated linkage structure, which enables the frame to naturally drive the seat frame to fold synchronously during the folding process. Users only need one action to complete the folding, without the need for step-by-step adjustments, which is especially suitable for one-handed operation or quick storage scenarios.

[0020] 2. This application adopts a simplified frame structure, which reduces the complexity and number of parts of the traditional structure while ensuring stability, making the frame lighter and reducing manufacturing costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0023] Figure 1 This is a three-dimensional structural diagram of the present application at a certain angle when it is in the unfolded state;

[0024] Figure 2 This is a three-dimensional structural diagram of the present application in its unfolded state from another angle;

[0025] Figure 3 This is a side view of the structure of this application in its unfolded state;

[0026] Figure 4 This is a frontal structural diagram of the present application in its unfolded state;

[0027] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of AA;

[0028] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of BB;

[0029] Figure 7 This is a three-dimensional structural diagram of the present application during the folding process;

[0030] Figure 8 This is a schematic diagram of the side structure of this application during the folding process;

[0031] Figure 9 This is a schematic diagram of the front structure of this application during the folding process;

[0032] Figure 10 This is a three-dimensional structural diagram of the present application when it is in a folded state;

[0033] Figure 11 This is a schematic diagram of the side structure of this application when it is in a folded state;

[0034] Figure 12 This is a front view of the structure of this application when it is in a folded state.

[0035] in:

[0036] 1. Install a support frame;

[0037] 2 front brackets;

[0038] 3. Rear support; 301 second crossbar;

[0039] 4. First sliding member;

[0040] 5. First link;

[0041] 6. Base support;

[0042] 7. Seat frame; 701 First crossbar;

[0043] 8. Seat frame linkage; 801 First connecting sleeve; 802 Second connecting sleeve; 803 Second connecting rod;

[0044] 9. Push the handle upwards;

[0045] 10. Front wheel assembly;

[0046] 11. Rear wheel assembly;

[0047] 12 armrest components;

[0048] 13 canopy rod assembly;

[0049] 14 rim posts;

[0050] 15. Second sliding member. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0052] In the description of this application and the claims, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates not less than two.

[0053] In the description of this application and the claims, the terms "connection," "installation," "fixation," and "reception," unless otherwise specified, should be interpreted broadly. For example, "connection" can mean a separate connection or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean a non-detachable connection or a detachable connection. As another example, "reception" does not necessarily mean complete containment; this concept also includes the containment of a portion that protrudes externally. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application based on the specific circumstances.

[0054] In the description of this application and the claims, if terms such as "above," "below," or "horizontal" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, they are only for the purpose of clearly and simply describing this application, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. These directional terms are relative concepts used for relative description and clarification, and may change accordingly depending on the orientation of the components in the drawings. For example, if the device in the drawings is flipped, an element described as "below" other elements will be positioned "above" other elements.

[0055] In the description of this application specification and claims, the term "if" is generally interchangeable with "when," "at," "in response to determination," or "in response to detection," depending on the context.

[0056] In the description of this application and the claims, if there is a "direction" of motion, including motion with a directional component, the term "in direction" is not necessarily understood as motion only in that one direction. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.

[0057] like Figures 1 to 12 As shown, a folding stroller includes a frame having an unfolded state and a folded state, and a locking mechanism for locking the frame in the unfolded state. The frame includes...

[0058] Upper bracket 1;

[0059] The push handle 9 is located above the upper bracket 1 and can be retracted relative to the upper bracket 1;

[0060] The upper part of the front bracket 2 is rotatably connected to the lower part of the upper bracket 1;

[0061] The upper part of the rear bracket 3 is slidably connected to the front bracket 2 via a first sliding member 4 that is rotatably connected;

[0062] The first connecting rod 5 is rotatably connected to the upper bracket 1 at its upper part and rotatably connected to the first sliding member 4 and / or the rear bracket 3 at its lower part;

[0063] The bottom support 6 is rotatably connected to the front support 2 at its front and rotatably connected to the rear support 3 at its rear.

[0064] Seat frame 7, which is rotatably connected to the front support 2;

[0065] The seat frame linkage 8 is rotatably connected between the seat frame 7 and the rear support 3;

[0066] The front wheel assembly 10 is mounted on the front of the underbody bracket 6;

[0067] The rear wheel assembly 11 is mounted at the rear of the bottom bracket 6;

[0068] When the upper support 1 is folded and retracted relative to the front support 2, the rear support 3 and the front support 2 are driven to fold downward and retract relative to the bottom support 6 under the action of the first connecting rod 5 and the first sliding member 4, and the seat frame 7 is driven to rotate and retract under the linkage action of the seat frame linkage member 8.

[0069] In this embodiment, the seat frame linkage 8 includes a first connecting sleeve 801 that rotatably engages with the first crossbar 701 at the front of the seat frame 7, a second connecting sleeve 802 that rotatably engages with the second crossbar 301 at the upper part of the rear support 3, and a second connecting rod 803 connecting the first connecting sleeve 801 and the second connecting sleeve 802.

[0070] In this embodiment, a telescopic push handle 9 is preferably used, which slides with the upper support 1 and can extend or retract relative to it. This is a preferred embodiment; however, a folding structure can also be used, where the lower part of the push handle 9 is rotatably connected to the upper support 1.

[0071] In this embodiment, the locking mechanism includes a first locking mechanism disposed between the upper push handle 9 and the upper bracket 1, and a second locking mechanism disposed at the rotatable connection between the upper bracket 1 and the front bracket 2. Preferably, the first and second locking mechanisms are linked, meaning that when the first locking mechanism is released and the upper push handle retracts relative to the upper bracket, the second locking mechanism is automatically triggered and released. Furthermore, the unlocking component of the first locking mechanism is preferably located at the upper middle position of the upper push handle. Since the locking mechanisms between two sliding parts, between two rotating parts, and between two locking mechanisms are all conventional structures in this technical field, and their structures vary, they will not be specifically described or limited here.

[0072] In this embodiment, the frame may further include a handrail assembly 12 and a canopy rod assembly 13. Preferably, the handrail assembly 12 and the canopy rod assembly 13 can be mounted on the upper support 1 and can be coaxially connected to the rotatable connection between the first connecting rod 5 and the upper support 1. Since the handrail assembly 12 and the canopy rod assembly 13 are conventional structures in this technical field and have various structures, they will not be described in detail or limited here.

[0073] In this embodiment, the frame may further include a basket arm 14 rotatably connected to the rear support 3, the lower end of which is slidably connected to the bottom support 6 via a second sliding member 15. Preferably, the second sliding member 15 is slidably disposed at the rear of the bottom support 6. This design allows the frame to naturally drive the basket arm 14 (basket) to fold synchronously during the folding process, improving folding efficiency.

[0074] In this embodiment, both the first sliding member 4 and the second sliding member 15 are preferably sliding sleeves. Specifically, the first sliding member 4 is slidably sleeved with the side rod of the front support 2 and slides along the extending direction of the front support 2; the second sliding member 15 is slidably sleeved with the side rod of the bottom support 6 and slides along the extending direction of the bottom support 6.

[0075] The working principle of this application is as follows:

[0076] When the frame is unfolded, the upper push handle 9 is in an extended state (extending to its maximum extent from the upper bracket 1), and it, along with the front bracket 2 and the upper bracket 1, is arranged at an angle with the front lower than the rear. The rear bracket 3 and the bottom bracket 6 are both arranged at an angle with the front higher than the rear.

[0077] When the frame is folded, the first locking mechanism is first released, causing the push handle 9 to retract relative to the upper support 1. At this time, the retracted push handle 9 triggers and automatically releases the second locking mechanism. Then, the push handle 9 is rotated forward and pressed down, causing the upper support 1 to rotate forward and fold relative to the front support 2. Under the action of the first connecting rod 5 and the first sliding member 4, the rear support 3 and the front support 2 are folded downward. Under the action of the seat frame linkage, the seat frame 7 is rotated and folded, completing the folding and folding of the entire vehicle.

[0078] This application adopts a novel integrated linkage structure, which enables the frame to naturally drive the seat 7 to fold synchronously during the folding process. Users only need one action to complete the folding, without the need for step-by-step adjustments, making it especially suitable for one-handed operation or quick storage scenarios.

[0079] This application adopts a simplified frame structure, which reduces the complexity and number of parts of the traditional structure while ensuring stability, making the frame lighter and reducing manufacturing costs.

[0080] As a preferred embodiment of this application, in the description of this specification, the reference to terms such as "preferred," "optional," etc., means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0081] The above embodiments are only used to illustrate the detailed solutions of this application. This application is not limited to the above detailed solutions, that is, it does not mean that this application must rely on the above detailed solutions to be implemented. Those skilled in the art should understand that any improvements to this application, equivalent substitutions of the raw materials of the product of this application, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this application.

Claims

1. A folding stroller, comprising a frame having an unfolded state and a folded state, and a locking mechanism for locking the frame in the unfolded state, characterized in that: The vehicle frame includes Upper bracket; The front bracket, the upper part of which is rotatably connected to the lower part of the upper bracket; The rear bracket has its upper part slidably connected to the front bracket via a first sliding member that is rotatably connected. The first connecting rod has its upper part rotatably connected to the upper bracket and its lower part rotatably connected to the first sliding member and / or the rear bracket; The base support is rotatably connected to the front support at its front end and rotatably connected to the rear support at its rear end. A seat frame, which is rotatably connected to the front support; A seat frame linkage component is rotatably connected between the seat frame and the rear support; When the upper support is folded and retracted relative to the front support, the rear support and the front support are folded downwards relative to the bottom support under the action of the first connecting rod and the first sliding member, and the seat frame is rotated and retracted under the linkage of the seat frame linkage member.

2. A folding stroller according to claim 1, characterized in that: The frame also includes a front wheel assembly and a rear wheel assembly, with the front wheel assembly mounted at the front of the underbody and the rear wheel assembly mounted at the rear of the underbody.

3. A folding stroller according to claim 1, characterized in that: The seat frame linkage includes a first connecting sleeve that rotatably engages with the first crossbar at the front of the seat frame, a second connecting sleeve that rotatably engages with the second crossbar at the upper part of the rear support, and a second connecting rod connecting the first connecting sleeve and the second connecting sleeve.

4. A folding stroller according to claim 1, characterized in that: The frame also includes an upward push handle that can be retracted relative to the upper support.

5. A folding stroller according to claim 4, characterized in that: The upper push handle is slidably engaged with the upper bracket and can extend or retract relative to it.

6. A folding stroller according to claim 4, characterized in that: The locking mechanism includes a first locking mechanism disposed between the upper push handle and the upper bracket, and a second locking mechanism disposed at the rotatable connection between the upper bracket and the front bracket.

7. A folding stroller according to claim 6, characterized in that: The first locking mechanism and the second locking mechanism are designed to work together; when the first locking mechanism is released and the push handle is retracted relative to the upper bracket, the second locking mechanism is automatically released.

8. A folding stroller according to claim 1, characterized in that: The frame also includes a basket arm rotatably connected to the rear support, the lower end of which is slidably connected to the bottom support via a second sliding member rotatably connected.

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