A synchronized folding handle and synchronized folding device for a double-beam double-folding frame.

Abstract

This utility model discloses a synchronous folding handle for a double-beam double-folding frame, comprising a handle body with shaft holes at both its upper and lower ends. The handle body is rotatably mounted on the rotating shafts of the upper and lower folding mechanisms through these shaft holes. The upper and lower ends of the handle body also have a linkage structure connected to the internal components of the folding mechanisms. When the synchronous folding handle is rotated, the upper and lower folding mechanisms can be synchronously locked or released. This utility model can synchronously drive the upper and lower folding mechanisms to lock or release when the handle is rotated, thereby achieving synchronous operation of the upper and lower folding mechanisms of the double-beam folding frame, greatly improving the folding and unfolding speed of the frame and shortening the operation time.

Description

Technical Field

[0001] This utility model relates to the field of folding bicycle technology, specifically to a synchronous folding handle and synchronous folding device for a double-beam double-folding frame. Background Technology

[0002] Folding bicycles are widely popular due to their ease of carrying and storage. Currently, the main frame structures of folding bicycles are single-beam and double-beam frames. Single-beam frames typically feature a single quick-folding mechanism, enabling rapid unfolding and folding. However, their rigidity and safety are less than ideal, leading to wobbling and deformation during riding, posing certain safety hazards. Double-beam folding frames, by incorporating two main beams, effectively address the rigidity and safety issues of single-beam frames, improving overall strength and stability. However, existing double-beam folding frames require separate operation of the upper and lower folding mechanisms for unfolding and folding, resulting in a slow and time-consuming process that negates the convenience of quick folding. Therefore, there is an urgent need for a folding handle that can simultaneously operate the upper and lower folding mechanisms of a double-beam folding frame. Summary of the Invention

[0003] The purpose of this utility model is to provide a synchronous folding handle and synchronous folding device for a double beam double folding frame, so as to solve the problem that the existing double beam folding frame requires separate operation of the upper and lower folding devices, resulting in slow folding and unfolding speed and inconvenient operation.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A synchronous folding handle for a double-beam double-folding frame, wherein the synchronous folding handle has shaft holes at both the upper and lower ends, and the synchronous folding handle is rotatably mounted on the rotating shafts of the upper and lower folders through the shaft holes at both ends. The two seats of the upper folder and the upper end of the synchronous folding handle are mounted on the same upper folder rotating shaft, and the two seats of the lower folder and the lower end of the synchronous folding handle are mounted on the same lower folder rotating shaft. The synchronous folding handle has a linkage structure at both the upper and lower ends, which contacts or connects to the internal components of the folders. When the synchronous folding handle is rotated, the upper and lower folders can be locked or released synchronously.

[0006] Furthermore, the linkage structure at the upper and lower ends of the synchronous folding handle is a cam-shaped end. When the handle body is rotated, the eccentric cam-shaped ends at the upper and lower ends push the internal components of the folder to move, thus forming a linkage.

[0007] Furthermore, the linkage structure at the upper and lower ends of the synchronous folding handle also includes linkage shaft holes. The upper linkage shaft hole is located at the upper end of the synchronous folding handle and is adjacent to the shaft hole at the upper end of the synchronous folding handle. The lower linkage shaft hole is located at the lower end of the synchronous folding handle and is adjacent to the shaft hole at the lower end of the synchronous folding handle. The linkage shaft hole is connected to the internal components of the folder through a pin.

[0008] Furthermore, the linkage structure at the upper and lower ends of the synchronous folding handle also includes recessed slots, through which the handle body contacts or connects with the internal components of the folder to form a linkage.

[0009] Furthermore, the rotation angle of the synchronous folding handle is 0-180 degrees.

[0010] This utility model also provides a synchronous folding device for mounting the above-mentioned synchronous folding handle.

[0011] A synchronous folding mechanism for a double-beam double-folding frame includes two folding mechanisms and a synchronous folding handle. The two folding mechanisms are respectively mounted on the upper beam and lower beam of the frame. The synchronous folding handle has shaft holes at both the upper and lower ends. The synchronous folding handle is rotatably mounted on the rotating shafts of the upper and lower folding mechanisms through the shaft holes at both ends. The synchronous folding handle also has a linkage structure at both the upper and lower ends. The linkage structure is connected to the internal components of the folding mechanism. When the synchronous folding handle is rotated, the upper and lower folding mechanisms can be locked or released synchronously.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] This invention features shaft holes at the upper and lower ends of the handle, through which the handle can be rotatably mounted on the shafts of the upper and lower folding mechanisms. Simultaneously, a linkage structure at the upper and lower ends of the handle allows for the synchronous locking or unlocking of the upper and lower folding mechanisms when the handle is rotated. This achieves synchronized operation of the upper and lower folding mechanisms of the double-beam folding frame, significantly improving the folding and unfolding speed of the frame and shortening the operation time. While retaining the rigidity and safety of the double-beam frame, it restores the quick unfolding and folding convenience of a single-beam folding bicycle, with a simple structure and easy operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the synchronous folding handle described in Embodiment 1 of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an exploded view of the synchronous folding handle installation.

[0016] Figure 3 for Figure 1 The diagram shows the structure after the synchronous folding handle is installed on the folder.

[0017] Figure 4 This is a three-dimensional structural diagram of the synchronous folding handle shown in Embodiment 3 of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the synchronous folding handle shown in Embodiment 4 of this utility model;

[0019] The markings in the diagram are: 1. Handle body; 111. Upper shaft hole; 112. Upper connecting shaft hole; 113. Upper slot hole; 121. Lower shaft hole; 122. Lower connecting shaft hole; 123. Lower slot hole; 2. Upper folding device; 3. Lower folding device; 4. Upper rotating shaft; 5. Lower rotating shaft. Detailed Implementation

[0020] Example 1

[0021] like Figure 1-3 As shown, the synchronous folding handle for a double-beam double-folding frame provided in this embodiment includes a handle body 1. The upper end of the handle body 1 is provided with an upper shaft hole 111, and the lower end is provided with a lower shaft hole 121. The upper end of the handle body 1 is rotatably mounted on the upper rotating shaft 4 of the upper folding device 2 through the upper shaft hole 111, and the lower end of the handle body 1 is rotatably mounted on the lower rotating shaft 5 of the lower folding device 3 through the lower shaft hole 121. The two seats of the upper folding device 2 and the upper end of the handle body 1 are simultaneously mounted on the upper rotating shaft 4, and the two seats of the lower folding device 3 and the handle body 1 are simultaneously mounted on the lower rotating shaft 5.

[0022] The upper and lower ends of the handle body 1 are also provided with a linkage structure, which enables the upper folding device 2 and the lower folding device 3 to lock or unlock synchronously when the handle body 1 is rotated. In this embodiment,

[0023] The linkage structure adopts an eccentric cam-shaped design at the end of the handle body 1 (eccentric relative to the shaft hole at the end). The cam-shaped end contacts the internal components of the folder. When the handle body 1 is rotated, the cam-shaped end pushes the internal components of the folder to move, thus forming a linkage.

[0024] In actual use, the handle body 1 can be rotated and locked towards the front of the frame or towards the rear of the frame. The upper and lower ends of the handle body 1 can be interchanged depending on the locking direction. The rotation angle of the handle body 1 is 0-180 degrees.

[0025] Example 2

[0026] like Figure 3As shown, this embodiment provides a synchronous folding mechanism for a double-beam, double-folding frame, including an upper folding mechanism 2, a lower folding mechanism 3, and a synchronous folding handle. The upper folding mechanism 2 is mounted on the upper beam of the frame, and the lower folding mechanism 3 is mounted on the lower beam of the frame. The synchronous folding handle adopts the synchronous folding handle structure described in Embodiment 1, and the specific structure will not be repeated here. When the handle body 1 is rotated, the upper folding mechanism 2 and the lower folding mechanism 3 can be locked or released synchronously.

[0027] Example 3

[0028] like Figure 4 As shown, the structure of the synchronous folding handle for the double beam double folding frame provided in this embodiment is basically the same as the structure of the synchronous folding handle provided in Embodiment 1. The difference is that the linkage structure of the synchronous folding handle in this embodiment not only includes an eccentric cam-shaped end, but also a linkage shaft hole. The linkage shaft hole includes an upper linkage shaft hole 112 and a lower linkage shaft hole 122. The upper linkage shaft 112 is located at the upper end of the handle body 1 and is adjacent to the upper shaft hole 111 at the upper end of the handle body 1. The lower linkage shaft hole 122 is located at the lower end of the handle body 1 and is adjacent to the lower shaft hole 121 at the lower end of the handle body 1. The linkage shaft hole is connected to the internal components of the folding device through a pin to achieve linkage.

[0029] Example 4

[0030] like Figure 5 As shown, the structure of the synchronous folding handle for a double-beam double-folding frame provided in this embodiment is basically the same as that of the synchronous folding handle provided in Embodiment 3. The difference is that the linkage structure of the synchronous folding handle in this embodiment adds a concave slot to the structure of Embodiment 3. That is, the linkage structure includes an eccentric cam-shaped end, a linkage shaft hole, and a concave slot. The concave slot includes an upper slot hole 113 and a lower slot hole 123. In use, the folding device contacts or connects with the internal components of the folding device through the slot to achieve linkage.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A synchronous folding handle for a double-beam double-folding frame, comprising a handle body, characterized in that: Both the upper and lower ends of the handle body are provided with shaft holes. The handle body is rotatably mounted on the rotating shafts of the upper and lower folding devices through the shaft holes at the upper and lower ends. The two seat bodies of the upper folding device and the upper end of the handle body are simultaneously mounted on the rotating shaft of the upper folding device, and the two seat bodies of the lower folding device and the lower end of the handle body are simultaneously mounted on the rotating shaft of the lower folding device. The upper and lower ends of the handle body are further provided with a linkage structure, which contacts or connects with the internal components of the folding device. When the synchronous folding handle is rotated, the upper and lower folding devices can be synchronously locked or loosened.

2. The synchronous folding handle for the double-beam double-folding frame according to claim 1, characterized in that: The linkage structures at the upper and lower ends of the synchronous folding handle are eccentric cam-shaped ends. When the handle body is rotated, the eccentric cam-shaped ends at the upper and lower ends thereof push the internal components of the folding device to move to form linkage.

3. The synchronous folding handle for the double-beam double-folding frame according to claim 2, characterized in that: The linkage structures at the upper and lower ends of the handle body further include linkage shaft holes. The upper linkage shaft hole is arranged at the upper end of the handle body, adjacent to the shaft hole at the upper end of the handle body. The lower linkage shaft hole is arranged at the lower end of the handle body, adjacent to the shaft hole at the lower end of the handle body. The linkage shaft holes are connected to the internal components of the folding device through pin shafts.

4. The synchronous folding handle for the double-beam double-folding frame according to claim 3, characterized in that: The linkage structures at the upper and lower ends of the synchronous folding handle further include concave slot holes. The handle body forms linkage by contacting or connecting with the internal components of the folding device through its slot holes.

5. A synchronous folder for a double-beam double-folding frame, characterized in that: It includes two folding devices and a synchronous folding handle. The two folding devices are respectively mounted on the upper beam and the lower beam of the vehicle frame. Both the upper and lower ends of the handle body of the synchronous folding handle are provided with shaft holes. The handle body is rotatably mounted on the rotating shafts of the upper and lower folding devices through the shaft holes at the upper and lower ends. The upper and lower ends of the handle body are further provided with a linkage structure, which contacts or connects with the internal components of the folding device. When the synchronous folding handle is rotated, the upper and lower folding devices can be synchronously locked or loosened.

6. The synchronous folder for the double-beam double-folding frame according to claim 5, characterized in that: The linkage structures at the upper and lower ends of the synchronous folding handle are eccentric cam-shaped ends. When the handle body is rotated, the eccentric cam-shaped ends at the upper and lower ends thereof push the internal components of the folding device to move to form linkage.

7. The synchronous folder for the double-beam double-folding frame according to claim 6, characterized in that: The linkage structures at the upper and lower ends of the handle body further include linkage shaft holes. The upper linkage shaft hole is arranged at the upper end of the handle body, adjacent to the shaft hole at the upper end of the handle body. The lower linkage shaft hole is arranged at the lower end of the handle body, adjacent to the shaft hole at the lower end of the handle body. The linkage shaft holes are connected to the internal components of the folding device through pin shafts.

8. The synchronous folder for the double-beam double-folding vehicle frame according to claim 7, characterized in that: The linkage structures at the upper and lower ends of the synchronous folding handle further include concave slot holes. The handle body forms linkage by contacting or connecting with the internal components of the folding device through its slot holes.

9. The synchronous folder for the double-beam double-folding frame according to claim 5, characterized in that: The rotation angle of the synchronous folding handle is 0 - 180 degrees.

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