FOLDABLE BICYCLE AND E-BIKE FRAME

Abstract

Folding bicycle and e-bike frame comprising a top tube (1) and a seat stay (2), wherein the top tube (1) and the seat stay (2) are connected to a pivot shaft (3) via bearings (13), and wherein Both sides of the top tube (1) are provided with mounting holes A (4), and the top tube (1) is connected above a pivot element (9) by the mounting holes A (4); the pivot element (9) is provided at the bottom with a mounting hole B (5), and the pivot element (9) is connected above a shock absorber (10) by the mounting hole B (5); the lower part of the shock absorber (10) is connected to the seat stay (2) by a mounting hole C (6), and both ends of the seat stay (2) are provided with end caps; the side wall of the top tube (1) is provided with a locking bolt hole (7) obliquely above the mounting holes A (4); the top of the pivot element (9) is provided with an open locking bolt hole (8); the open locking bolt hole (8) is aligned with the locking bolt hole (7); one end of the top tube (1) is provided with a clamping element (12); the clamping element (12) is provided with a clamping hook (11); and the seat stay (2) is rotated together with the shock absorber (10) until the tip of the shock absorber (10) is inserted into the clamping hook (11), and then the shock absorber (10) begins to act.

Description

Technical field

[0001] The present invention relates to the technical field of vehicle frames, in particular to a foldable bicycle and e-bike frame. State of the art

[0002] Bicycles and e-bikes have long been widespread as a means of human transportation and have evolved into various forms. With the rapid development of transportation and the expansion of roads, bicycles must adapt to new environments, such as high-rise housing estates, urban public transportation, and transport hubs. Current folding bicycles typically suffer from the disadvantages of a complex structure, inconvenience, and high cost, failing to meet people's needs.

[0003] Further state of the art is known from documents DE 203 13 278 U1, DE 10 2007 037 648 A1, and DE 20 2012 001 712 U1. Content of the invention

[0004] To overcome the disadvantages of the prior art, the present invention proposes a foldable bicycle and e-bike frame comprising a top tube and a seat stay, wherein the top tube and the seat stay are connected to a pivot shaft via bearings; both sides of the top tube are provided with mounting holes A, and the top tube is connected above a joint element through the mounting holes A; the joint element is provided below with a mounting hole B, and the joint element is connected above a shock absorber through the mounting hole B; the lower part of the shock absorber is connected to the seat stay through a mounting hole C, and both ends of the seat stay are provided with end caps.

[0005] The side wall of the top tube is provided with a locking bolt hole diagonally above the mounting holes A; the top of the joint element is provided with an open locking bolt hole; the open locking bolt hole is aligned with the locking bolt hole.

[0006] Furthermore, one end of the top tube is provided with a clamping element; the clamping element is provided with a clamping hook; and the seat stay is rotated together with the shock absorber until the tip of the shock absorber is inserted into the clamping hook, and then the shock absorber begins to work.

[0007] Furthermore, the mounting holes A, B and C are secured with nuts after the mounting screws have been passed through them; and a locking bolt passes through the locking bolt hole to secure the shock absorber and seat strut.

[0008] Furthermore, the crank arm and chainring set are mounted on both sides of the pivot shaft.

[0009] Furthermore, the clamping element is provided with a seatpost mounting hole and two screw holes, the seatpost mounting hole being for mounting the seatpost and the two screw holes being for connecting the top tube and the joint element and also for securing the seatpost.

[0010] Furthermore, the top tube is hollow inside and can be equipped with a battery pack and a control unit.

[0011] The use of the above-mentioned technical solution results in the following positive effects: The present invention has a simple structure: loosen the locking bolt and then loosen the fastening screws, rotate the seat stay clockwise while simultaneously driving the shock absorber and the joint element to rotate together into a specific position, then tighten the fastening screws to position and lock the seat stay; the entire product adopts a multi-purpose shaft and realizes that the pedal shaft and the folding shaft can be used together, thereby reducing the frame components, lowering the weight of the entire vehicle, making the whole thing easier and more convenient to fold, and with low production costs, and can be used for folding bicycles and e-bikes. Brief description of the drawings Fig. Figure 1 is a schematic representation of the structure of the present invention; Fig. Figure 2 is a schematic representation of the structure of the upper tube of the present invention; Fig. Figure 3 is a schematic representation of the structure of the present invention after unfolding; Fig. Figure 4 is a schematic representation of the page structure of the present invention; Fig. Figure 5 is a schematic representation of the structure of the clamping element of the present invention.

[0012] As shown in the figures: 1. Top tube, 2. Seat stay, 3. Pivot shaft, 4. Mounting hole A, 5. Mounting hole B, 6. Mounting hole C, 7. Locking bolt hole, 8. Open locking bolt hole, 9. Joint element, 10. Shock absorber, 11. Clamping hook, 12. Clamping element, 13. Bearing, 14. End cap, 15. Seatpost mounting hole, 16. Screw hole. Detailed description of preferred embodiments

[0013] The present invention is described in more detail below in conjunction with the accompanying drawings.

[0014] Design 1: Foldable bicycle and e-bike frame, as shown in the Fig. Figures 1 to 5 show a top tube 1 and a seat stay 2, wherein the top tube 1 and the seat stay 2 are connected to a pivot shaft 3 via bearings 13; both sides of the top tube 1 are provided with mounting holes A 4, and the top tube 1 is connected above a pivot element 9 by the mounting holes A 4; the pivot element 9 is provided at the bottom with a mounting hole B 5, and the pivot element 9 is connected above a shock absorber 10 by the mounting hole B 5; the lower part of the shock absorber 10 is connected to the seat stay 2 by a mounting hole C 6, and both ends of the seat stay 2 are provided with end caps 14.

[0015] The side wall of the top tube 1 is provided with a locking bolt hole 7 diagonally above the fastening holes A 4; the top of the joint element 9 is provided with an open locking bolt hole 8; the open locking bolt hole 8 is aligned with the locking bolt hole 7.

[0016] One end of the top tube 1 is provided with a clamping element 12; the clamping element 12 is provided with a clamping hook 11; and the seat stay 2 is rotated together with the shock absorber 10 until the tip of the shock absorber 10 is inserted into the clamping hook 11, and then the shock absorber 10 begins to act.

[0017] The mounting holes A 4, mounting hole B 5 and mounting hole C 6 are secured with nuts after the mounting screws have been passed through them; and a locking bolt passes through the locking bolt hole 7 to secure the shock absorber 10 and the seat strut 2.

[0018] The crank arm and chainring assembly are mounted on both sides of the pivot shaft 3. Both ends of the seat stay 2 are fitted with end caps 14.

[0019] The clamping element 12 is provided with a seatpost mounting hole 15 and two screw holes 16, wherein the seatpost mounting hole 15 is for mounting the seatpost and the two screw holes 16 are for connecting the top tube 1 and the joint element 9 and also for securing the seatpost.

[0020] The top tube 1 is hollow inside and can be equipped with a battery pack and a control unit.

[0021] The present invention has a simple structure: loosen the locking bolt and then loosen the fastening screws, rotate the seat stay clockwise while simultaneously driving the shock absorber and the joint element to rotate together into a specific position, then tighten the fastening screws to position and lock the seat stay; the entire product adopts a multi-purpose shaft and realizes that the pedal shaft and the folding shaft can be used together, thereby reducing the frame components, lowering the weight of the entire vehicle, making the whole thing easier and more convenient to fold, and with low production costs, and can be used for folding bicycles and e-bikes.

[0022] The foregoing describes the basic principles and main features of the present invention, and it should be clear to those skilled in the art that the present invention is not limited by the embodiments described above. The embodiments and descriptions mentioned above merely illustrate the principles of the present invention. The scope of the invention claimed for protection is defined by the attached claims and their equivalents.

Claims

[1] Folding bicycle and e-bike frame comprising a top tube (1) and a seat stay (2), wherein the top tube (1) and the seat stay (2) are connected to a pivot shaft (3) via bearings (13), and wherein Both sides of the top tube (1) are provided with mounting holes A (4), and the top tube (1) is connected above a pivot element (9) by the mounting holes A (4); the pivot element (9) is provided at the bottom with a mounting hole B (5), and the pivot element (9) is connected above a shock absorber (10) by the mounting hole B (5); the lower part of the shock absorber (10) is connected to the seat stay (2) by a mounting hole C (6), and both ends of the seat stay (2) are provided with end caps; the side wall of the top tube (1) is provided with a locking bolt hole (7) obliquely above the mounting holes A (4); the top of the pivot element (9) is provided with an open locking bolt hole (8); the open locking bolt hole (8) is aligned with the locking bolt hole (7); one end of the top tube (1) is provided with a clamping element (12); the clamping element (12) is provided with a clamping hook (11); and the seat stay (2) is rotated together with the shock absorber (10) until the tip of the shock absorber (10) is inserted into the clamping hook (11), and then the shock absorber (10) begins to act. [2] Foldable bicycle and e-bike frame according to claim 1, characterized by , that the mounting holes A (4), the mounting hole B (5) and the mounting hole C (6) are secured by nuts after the mounting screws have been passed through them; and a locking bolt passes through the locking bolt hole (7) to secure the shock absorber (10) and the seat strut (2). [3] Foldable bicycle and e-bike frame according to claim 1, characterized by , that the pedal crank and chainring set are mounted on both sides of the pivot shaft (3). [4] Folding bicycle and e-bike frame according to claim 1, characterized by, that the clamping element (12) is provided with a seatpost mounting hole (15) and two screw holes (16), wherein the seatpost mounting hole (15) is for mounting a seatpost and the two screw holes (16) are for connecting the top tube (1) and the joint element (9) and also for securing the seatpost. [5] Foldable bicycle and e-bike frame according to claim 1, characterized by , that the top tube (1) is hollow inside and may be equipped with a battery pack and a control unit inside.

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