A folding frame

Abstract

The utility model discloses a folding frame, include: foldable chassis, push handle, through locking mechanism and foldable chassis hinged, locking mechanism is used for locking push handle on foldable chassis, seat frame, with foldable chassis hinged, first hinged part is hinged respectively with push handle and seat frame to limit seat frame on push handle, handrail frame, with push handle hinged and distribute above seat frame, second hinged part is hinged respectively with push handle and seat frame to limit push handle above seat frame, locking mechanism unlock push handle, push handle rotates back, and through the setting of first hinged part and second hinged part realizes the linkage of push handle, seat frame and handrail frame, makes seat frame and handrail frame with push handle synchronous folding, and the structure is more compact after folding, reduces the space waste, is favorable to reduce the occupied space of folding frame after folding.

Description

Technical Field

[0001] This application relates to the field of children's vehicle technology, specifically to a folding vehicle frame. Background Technology

[0002] As a core tool for infants and toddlers' daily outings, the portability and storage efficiency of strollers directly affect the user experience. With the acceleration of urbanization and the popularization of multimodal transportation, the folded size and ease of operation have become key indicators for measuring product competitiveness.

[0003] The utility model patent document with announcement number CN221519747U describes a baby stroller. A rotating joint hinges the lower end of the upper handle to the upper end of the lower handle. A folding joint hinges the upper ends of the front legs, the upper ends of the rear legs, and the lower end of the lower handle. One end of a linkage joint is connected to the folding joint, allowing the folding joint to drive the linkage joint to rotate synchronously. The other end is hinged to the front and rear ends of the seat frame assembly, allowing the seat frame assembly to fold synchronously with the movement of the folding joint. A locking component unlocks or locks the folding joint, and a rotating joint unlocks or locks the folding joint. Through the coordinated movement of the locking component, rotating joint, folding joint, and linkage joint, the stroller can switch between an unfolded and folded state.

[0004] When the aforementioned baby stroller is folded, its armrests and seat frame components do not participate in the folding process, resulting in a loose shape after folding and wasted space. Summary of the Invention

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a folding frame with a more compact structure after folding, reducing space waste. The technical solution adopted includes:

[0006] A folding bicycle frame, comprising:

[0007] Foldable base frame;

[0008] The push handle is hinged to the foldable base frame via a locking mechanism, which is used to lock the push handle onto the foldable base frame;

[0009] The seat frame is hinged to the foldable base frame;

[0010] A first hinge member is respectively hinged to the push handle and the seat frame to limit the seat frame on the push handle;

[0011] An armrest frame, hinged to the push handle and distributed above the seat frame;

[0012] The second hinge is hinged to the push handle and the seat frame respectively to limit the push handle above the seat frame;

[0013] The locking mechanism unlocks the push handle, the push handle rotates backward, and drives the seat frame to rotate backward through the first hinge. The seat frame drives the armrest frame to rotate backward through the second hinge.

[0014] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the first hinge member is L-shaped.

[0015] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the handrail frame includes two handrail fixing seats and a surrounding rod, the two handrail fixing seats are respectively hinged to the push handle, and the surrounding rod is detachably connected to the two handrail fixing seats.

[0016] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the foldable base frame includes a front wheel frame and a rear wheel frame rotatably connected to the lower end of the push handle.

[0017] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the locking mechanism is also used to lock the front wheel frame and the rear wheel frame in the unfolded state.

[0018] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the folding frame also includes a sunshade, the sunshade is installed on the push handle and located above the handrail frame, and the sunshade can be folded close to the push handle or unfolded.

[0019] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the sunshade includes a front awning rod and a rear awning rod, and the two ends of the front awning rod and the rear awning rod are respectively hinged to the push handle through a rotation limiting mechanism.

[0020] The beneficial effects of this utility model are as follows: When the folding frame described in this application is folded, the linkage between the push handle, the seat frame and the armrest frame is realized through the setting of the first hinge and the second hinge, so that the seat frame and the armrest frame are folded synchronously with the push handle. The structure is more compact after folding, reducing space waste and helping to reduce the space occupied by the folding frame. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the folding process of the folding frame described in the embodiments of this application;

[0023] Figure 2This is a schematic diagram of the unfolded state of the folding frame described in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the folded structure of the sunshade awning described in the embodiment of this application;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a structural diagram illustrating the folding process of the folding frame described in the embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the folded structure of the folding frame described in the embodiment of this application. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figure 1-6This application presents an embodiment of the folding frame, which includes:

[0033] Foldable base frame 10;

[0034] The push handle 20 is hinged to the foldable base frame 10 via a locking mechanism, which is used to lock the push handle 20 onto the foldable base frame 10 and keep it in an unfolded state.

[0035] The seat frame 30 is hinged to the foldable base frame 10;

[0036] The first hinge 40 is hinged to the push handle 20 and the seat frame 30 respectively to limit the seat frame 30 to a horizontal position;

[0037] The armrest frame 50 is hinged to the push handle 20 and distributed above the seat frame 30;

[0038] The second hinge 60 is hinged to the push handle 20 and the seat frame 30 respectively to limit the push handle 20 above the seat frame 30;

[0039] The locking mechanism unlocks the push handle 20, the push handle 20 rotates backward, and drives the seat frame 30 to rotate backward through the first hinge 40. The seat frame 30 drives the armrest frame 50 to rotate backward through the second hinge 60.

[0040] See attached document Figure 1-2 As shown, the folding frame is in the unfolded state, at which time the foldable base frame 10 is supported on the ground, the push handle 20 is installed on the foldable base frame 10 through a locking mechanism, the seat frame 30 is limited on the push handle 20 by the first hinge 40, and the armrest frame 50 is supported above the seat frame 30 by the second hinge 60.

[0041] See attached document Figure 1 As shown, when the folding frame needs to be folded, the locking mechanism is unlocked. At this time, the push handle 20 can rotate relative to the foldable base frame 10. When an external force rotates the push handle 20 backward, the push handle 20 drives the seat frame 30 to rotate through the first hinge 40. When the seat frame 30 rotates, it drives the armrest frame 50 to rotate backward through the second hinge 60 until the push handle 20 rotates backward to be close to the foldable base frame 10. The seat frame 30 and the armrest frame 50 rotate to be close to the rear side of the push handle 20, thus completing the folding of the folding frame.

[0042] When the folding frame described in this application is folded, the linkage between the push handle 20, the seat frame 30 and the armrest frame 50 is achieved through the setting of the first hinge 40 and the second hinge 60, so that the seat frame 30 and the armrest frame 50 are folded synchronously with the push handle 20. The structure is more compact after folding, reducing space waste and helping to reduce the space occupied by the folding frame after folding.

[0043] Based on the above, the first hinge 40 is L-shaped and is disposed between the seat frame 30 and the push handle 20. The projection of the first hinge 40 on the vertical plane coincides with the seat frame 30 and the push handle 20.

[0044] In this embodiment, the handrail frame 50 includes two handrail fixing seats 51 and a surrounding rod 52. The two handrail fixing seats 51 are respectively hinged to the push handle 20, and the surrounding rod 52 is detachably connected to the two handrail fixing seats 51.

[0045] In this embodiment, the foldable base frame 10 includes a front wheel frame 11 and a rear wheel frame 12 rotatably connected to the lower end of the push handle 20. In use, the front wheel frame 11 and the rear wheel frame 12 are supported on the ground. After the locking mechanism is unlocked, the push handle 20 rotates backward and moves closer to the rear wheel frame 12 under the action of external force. The armrest frame 50 and the seat frame 30 rotate to fold with the push handle 20. When the foldable base frame 10 is picked up, the front wheel frame 11 and the rear wheel frame 12 rotate to move closer to each other under gravity to realize the folding of the entire frame.

[0046] This application does not specifically limit the structure of the locking mechanism, as long as it can lock the positions of the push handle 20 and the foldable base frame 10. For example, the locking mechanism adopts the structure of the first locking component and the second locking component as described in the announcement number CN222646088U, so as to lock the front wheel frame 11 and the rear wheel frame 12 in the unfolded state and lock the push handle 20 in the unfolded state. After the locking mechanism is unlocked, the push handle 20 can rotate relative to the foldable base frame 10. After the push handle 20 is folded, the foldable base frame 10 is lifted to realize that the front wheel frame 11 and the rear wheel frame 12 rotate and fold under gravity.

[0047] Based on the above, in this embodiment, the folding frame also includes a sunshade 70, which is mounted on the push handle 20 and located above the handrail frame 50. The sunshade 70 can be folded close to the push handle 20 or unfolded.

[0048] Before folding the frame, first fold the sunshade 70 close to the push handle 20, and then unlock the locking mechanism to fold the frame.

[0049] Specifically, the awning 70 includes a front awning rod 71 and a rear awning rod 72. Both ends of the front awning rod 71 and the rear awning rod 72 are hinged to the push handle 20 via rotation limiting mechanisms. The front awning rod 71 and the rear awning rod 72 can rotate relative to the push handle 20 and be limited in position to achieve sunshade. The hinged connection of the front awning rod 71 and the rear awning rod 72 to the push handle 20 via rotation limiting mechanisms, and their ability to rotate relative to the push handle 20 and be limited in position, is prior art in this application. Therefore, this application does not provide a detailed description of the specific structure and working principle of the awning 70.

[0050] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A folding bicycle frame, characterized in that, include: Foldable base frame (10); The push handle (20) is hinged to the foldable base frame (10) by a locking mechanism, which is used to lock the push handle (20) in the unfolded state onto the foldable base frame (10); Seat frame (30) is hinged to the foldable base frame (10); The first hinge (40) is hinged to the push handle (20) and the seat frame (30) respectively to limit the seat frame (30) on the push handle (20); The armrest frame (50) is hinged to the push handle (20) and distributed above the seat frame (30); The second hinge (60) is hinged to the push handle (20) and the seat frame (30) respectively to limit the push handle (20) above the seat frame (30); The locking mechanism unlocks the push handle (20), the push handle (20) rotates backward, and drives the seat frame (30) to rotate backward through the first hinge (40), and the seat frame (30) drives the armrest frame (50) to rotate backward through the second hinge (60).

2. The folding frame according to claim 1, characterized in that, The first hinge (40) is L-shaped.

3. The folding frame according to claim 1, characterized in that, The handrail frame (50) includes two handrail fixing seats (51) and a railing (52). The two handrail fixing seats (51) are respectively hinged to the push handle (20), and the railing (52) is detachably connected to the two handrail fixing seats (51).

4. The folding frame according to claim 1, characterized in that, The foldable base frame (10) includes a front wheel frame (11) and a rear wheel frame (12) rotatably connected to the lower end of the push handle (20).

5. The folding frame according to claim 4, characterized in that, The locking mechanism is also used to lock the front wheel frame (11) and the rear wheel frame (12) in the deployed state.

6. The folding frame according to any one of claims 1-5, characterized in that, The folding frame also includes a sunshade (70) mounted on the push handle (20) and located above the handrail (50), the sunshade (70) being foldable close to the push handle (20) or unfolded.

7. The folding frame according to claim 6, characterized in that, The awning (70) includes a front awning rod (71) and a rear awning rod (72), and the two ends of the front awning rod (71) and the rear awning rod (72) are respectively hinged to the push handle (20) through a rotation limiting mechanism.

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