A folding mechanism and a folding tricycle including the mechanism

Abstract

This utility model discloses a folding mechanism and a folding tricycle including the mechanism. It relates to the field of children's vehicle technology and includes: a rear leg mounting portion on a side wall perpendicular to the axial direction of the frame, and a limiting groove on the side wall along the axial direction; a connecting assembly including a front beam head, a push rod connector, a rear leg connector, and a base connector, wherein the front beam head is rotatably connected to one end of the frame, and the push rod connector is connected to the other end of the frame; a folding adjustment assembly including a tensioner, a rear drive gear, a front link folding line gear, and a folding cover, wherein the tensioner is disposed on the side wall of the frame, the rear drive gear is disposed on the rear leg mounting portion, and the front link folding line gear is disposed on the side wall of the frame, and the tensioner, the rear drive gear, and the front link folding line gear are connected by a traction line drive. This utility model, a folding mechanism and a folding tricycle including the mechanism, enables one-button folding, reduces size, and lowers the risk of accidental folding.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, and more specifically to a folding mechanism and a folding tricycle including the mechanism. Background Technology

[0002] A folding tricycle is a lightweight, foldable mode of transportation, mainly used for short-distance travel. It is portable and easy to store, and its small size when folded makes it convenient to store and carry, making it suitable for outdoor use.

[0003] Currently, existing folding tricycles require disassembly of parts to fold completely, making one-click folding impossible; existing folding tricycles are still quite bulky when folded, making it difficult to easily fit into a car trunk or luggage rack when out and about; the folding locking device is structurally unstable, posing a risk of accidental folding.

[0004] Therefore, how to provide a folding mechanism that can be folded with one click, has a simplified structure, reduced size, and lower risk of accidental folding, as well as a folding tricycle containing such a mechanism, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a folding mechanism and a folding tricycle including the mechanism, which can be folded with one click, with a simplified structure, reduced size, and reduced risk of accidental folding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, this application proposes a folding mechanism, comprising:

[0008] The frame has a rear leg mounting portion on a side wall perpendicular to the axial direction, and a limiting groove on a side wall along the axial direction, the limiting groove being provided corresponding to the rear leg mounting portion.

[0009] The connecting assembly includes a front beam head, a push rod connector, a rear leg connector, and a base connector. The front beam head is rotatably connected to one end of the main frame, the push rod connector is connected to the other end of the main frame, and the push rod connector is close to the rear leg mounting portion. The base connector is located on one side of the main frame opposite to the rear leg mounting portion. Two rear leg connectors are arranged opposite each other, and the two rear leg connectors are rotatably connected to both sides of the rear leg mounting portion, and the two rear leg connectors are inclined away from each other.

[0010] The folding adjustment assembly includes a tensioner, a rear drive gear, a front link folding line gear, and a folding cover. The tensioner is disposed on the side wall of the frame and is adapted to the limiting groove. The rear drive gear is located on the rear leg mounting part. The front link folding line gear is disposed on the side wall where the frame connects to the front beam head. The folding cover is disposed corresponding to the front link folding line gear. The tensioner, the rear drive gear, and the front link folding line gear are connected by a traction line drive.

[0011] Furthermore, the front beam head includes a beam head sleeve and a rotating connector. The beam head sleeve is connected to the rotating connector, and the rotating connector is rotatably connected to the end of the main beam frame away from the push rod connector. The tensioner is disposed inside the rotating connector, and two folding covers are disposed opposite each other on the rotating connector.

[0012] Furthermore, one of the rear leg connectors is provided with a locking element that is adapted to the front link folding line gear.

[0013] Furthermore, a folding button is provided between the folding cover and the rotating connector.

[0014] Furthermore, the beam head sleeve and push rod connector are both inclined to one side, and the inclination direction of the beam head sleeve and push rod connector is consistent with the rotation direction of the rear leg connector.

[0015] Furthermore, a limiting member is provided at the end of the main beam frame that connects to the rotating connector.

[0016] On the other hand, a folding tricycle is proposed, including the folding mechanism described above, comprising: a front wheel and a handle connected to the front beam head, the front wheel being disposed below the handle, a push rod connected to the push rod connector, two rear wheels respectively connected to the two rear leg connectors, and a seat connected to the base connector, the seat being rotatably provided with a backrest.

[0017] Furthermore, it also includes a windshield, which is rotatably mounted on the backrest.

[0018] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a folding mechanism and a folding tricycle including the mechanism. By setting a main beam frame and connecting components, the installation and disassembly of each component are convenient, the structure is optimized, and the volume is reduced. By setting a folding adjustment component, one-click folding is possible, the structure is stable, and the risk of accidental folding is reduced. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the folding mechanism provided by this utility model;

[0021] Figure 2 A schematic diagram of the folding mechanism provided by this utility model (from another perspective);

[0022] Figure 3 A schematic diagram of the folding mechanism structure provided for this utility model (rear leg connector and front beam head rotation);

[0023] Figure 4 This is a structural schematic diagram of the folding tricycle provided by this utility model;

[0024] Figure 5 An exploded view of the folding mechanism provided by this utility model.

[0025] The components are as follows: 1 is the main frame; 2 is the rear leg mounting part; 3 is the limiting groove; 4 is the front beam head; 41 is the beam head sleeve; 42 is the rotating connector; 5 is the push rod connector; 6 is the rear leg connector; 7 is the base connector; 8 is the tensioner; 9 is the folding cover; 10 is the traction cable; 11 is the locking component; 12 is the limiting component; 13 is the front wheel; 14 is the handle; 15 is the push rod; 16 is the rear wheel; 17 is the seat; 18 is the backrest; 19 is the windshield; 20 is the rear drive gear; 21 is the front link folding line gear; 22 is the folding button. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figure 1-5 This utility model discloses a folding mechanism and a folding tricycle including the mechanism, comprising:

[0028] The frame 1 has a rear leg mounting part 2 on the side wall perpendicular to the axial direction, and a limiting groove 3 on the side wall along the axial direction, which corresponds to the rear leg mounting part 2. By setting the frame 1 and the connecting components, the installation and disassembly of each component can be made convenient, the structure is optimized and the volume is reduced.

[0029] The connecting assembly includes a front beam head 4, a push rod connector 5, a rear leg connector 6, and a base connector 7. The front beam head 4 is rotatably connected to one end of the main frame 1, the push rod connector 5 is connected to the other end of the main frame 1, the push rod connector 5 is close to the rear leg mounting part 2, the base connector 7 is located on one side of the main frame 1 opposite to the rear leg mounting part 2, and two rear leg connectors 6 are arranged opposite each other. The two rear leg connectors 6 are rotatably connected to the two sides of the rear leg mounting part 2 respectively, and the two rear leg connectors 6 are inclined away from each other.

[0030] The folding adjustment assembly includes a tensioner 8, a rear drive gear 20, a front link folding line gear 21, and a folding cover 9. The tensioner 8 is mounted on the side wall of the main frame 1 and is adapted to the limiting groove 3. The rear drive gear 20 is mounted on the rear leg mounting part 2. The front link folding line gear 21 is mounted on the side wall where the main frame 1 connects to the front beam head 4. The folding cover 9 is positioned corresponding to the front link folding line gear 21. The tensioner 8, the rear drive gear 20, and the front link folding line gear 21 are connected by a traction line 10. Rotating the rear leg connector 6 drives the rear drive gear 20 to rotate. The rotation of the rear drive gear 20 drives the tensioner 8 and the front link folding line gear 21 to rotate via the traction line 10, thereby enabling the front beam head 4 to rotate relative to the main frame 1 and achieving one-button folding.

[0031] In this embodiment, the front beam head 4 includes a beam head sleeve 41 and a rotating connector 42. The beam head sleeve 41 is connected to the rotating connector 42. The rotating connector 42 is rotatably connected to the end of the main beam frame 1 away from the push rod connector 5. The tensioner 8 is disposed inside the rotating connector 42. Two folding covers 9 are disposed opposite each other on the rotating connector 42.

[0032] In this embodiment, one of the rear leg connectors 6 is provided with a locking member 11, which is adapted to the front link folding gear 21. By pushing the locking member 11 into the front link folding gear 21, the entire device is fixed and cannot be folded. Pulling out the lock and pressing the folding cover 9 enables one-click folding, which has a locking function, achieves structural stability, and reduces the risk of accidental folding.

[0033] In this embodiment, a folding button 22 is provided between the folding cover 9 and the rotating connector 42. The folding button springs back the folding cover 9, thereby resetting the folding cover 9.

[0034] In this embodiment, the beam head sleeve 41 and the push rod connector 5 are both inclined to one side, and the inclination direction of the beam head sleeve 41 and the push rod connector 5 is consistent with the rotation direction of the rear leg connector 6; when connecting the handle 14 and the push rod 15, they are inclined towards the direction of the pusher, which is labor-saving and practical.

[0035] In this embodiment, a limiting member 12 is provided at one end of the main beam frame 1 that is connected to the rotating connector 42, and the rotation of the rotating connector 42 is limited by the limiting member 12.

[0036] On the other hand, a folding tricycle is proposed, including the aforementioned folding mechanism, comprising: a front wheel 13 and a handlebar 14 connected to the front beam head 4, the front wheel 13 being located below the handlebar 14; a push rod 15 connected to the push rod connector 5; two rear wheels 16 respectively connected to the two rear leg connectors 6; and a seat 17 connected to the base connector 7, the seat 17 having a rotatable backrest 18; the various components of the folding tricycle are detachably connected to the main beam frame 1 via connecting components, making installation and disassembly convenient, and the various components are easy to fold and store, allowing them to be easily placed in the trunk of a car or on a luggage rack when used outside.

[0037] In this embodiment, a windshield 19 is also included. The windshield 19 is rotatably mounted on the backrest. The windshield 19 is foldable for easy storage, providing shelter from wind and rain while saving space.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A folding mechanism, characterized in that, include: The frame has a rear leg mounting portion on a side wall perpendicular to the axial direction, and a limiting groove on a side wall along the axial direction, the limiting groove being provided corresponding to the rear leg mounting portion. The connecting assembly includes a front beam head, a push rod connector, a rear leg connector, and a base connector. The front beam head is rotatably connected to one end of the main frame, the push rod connector is connected to the other end of the main frame, and the push rod connector is close to the rear leg mounting portion. The base connector is located on one side of the main frame opposite to the rear leg mounting portion. Two rear leg connectors are arranged opposite each other, and the two rear leg connectors are rotatably connected to both sides of the rear leg mounting portion, and the two rear leg connectors are inclined away from each other. The folding adjustment assembly includes a tensioner, a rear drive gear, a front link folding line gear, and a folding cover. The tensioner is disposed on the side wall of the main frame and is adapted to the limiting groove. The rear drive gear is disposed on the rear leg mounting part. The front link folding line gear is disposed on the side wall where the main frame connects to the front beam head. The folding cover is disposed corresponding to the front link folding line gear. The tensioner, the rear drive gear, and the front link folding line gear are connected by a traction line drive.

2. The folding mechanism according to claim 1, characterized in that, The front beam head includes a beam head sleeve and a rotating connector. The beam head sleeve is connected to the rotating connector. The rotating connector is rotatably connected to the end of the main beam frame away from the push rod connector. The tensioner is disposed inside the rotating connector. Two folding covers are disposed opposite each other on the rotating connector.

3. The folding mechanism according to claim 1, characterized in that, One of the rear leg connectors is equipped with a locking element that is adapted to the front link folding line gear.

4. A folding mechanism according to claim 2, characterized in that, A folding button is provided between the folding cover and the rotating connector.

5. A folding mechanism according to claim 4, characterized in that, The beam head sleeve and push rod connector are both inclined to one side, and the inclination direction of the beam head sleeve and push rod connector is consistent with the rotation direction of the rear leg connector.

6. A folding mechanism according to claim 5, characterized in that, A limiting component is provided at one end of the main beam frame that connects to the rotating connector.

7. A folding tricycle, comprising a folding mechanism as described in any one of claims 1-6, characterized in that, It includes a front wheel and a handle connected to the front beam head, the front wheel being located below the handle, a push rod connected to the push rod connector, two rear wheels respectively connected to the two rear leg connectors, and a seat connected to the base connector, the seat being rotatably equipped with a backrest.

8. A folding tricycle according to claim 7, characterized in that, It also includes a windshield, which is rotatably mounted on the backrest.

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