Electric bicycle frame with goods shelf

Abstract

An electric bicycle frame with a goods shelf comprises a lower pipe, a head pipe fixed to the front end of the lower pipe, an installation shell fixed to the tail end of the lower pipe, a middle pipe assembly fixed to the installation shell, an installation frame fixed to the upper end of the middle pipe assembly, supporting frames fixed to the two sides of the bottom of the installation frame and a lower fork hinged to the installation shell. The supporting frame comprises first supporting pipes and a second supporting pipe, a cavity is formed among the two first supporting pipes, the mounting frame and the middle pipe assembly, and a shock absorber is arranged between the tail fork and the second supporting pipe. A user can place goods conveniently, and practicability is high; and meanwhile, the overall structural strength is high, and a good driving feeling can be brought to a user.

Description

Technical Field

[0001] The utility model relates to the field of bicycle frames, in particular to an electric bicycle frame with a shelf. Background Art

[0002] The frames of existing bicycles generally serve mainly as the main body support without other additional functions. Some existing improvement technologies are generally centered around the strength of the frame, which makes the frame single in function. However, with the accelerated pace of life, more and more fields, such as food deliverymen, use electric vehicles to transport goods. People have an increasing demand for electric vehicles with structures that can load goods. Most electric vehicles either do not have structures for loading goods or have unstable structures that are not practical. Summary of the invention

[0003] The problem to be solved by the utility model is to provide an electric bicycle frame with a shelf, which can bear goods and has high stability and strong practicality of the whole frame.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an electric bicycle frame with a shelf, comprising a down tube, a head tube fixed to the front end of the down tube, a mounting shell fixed to the rear end of the down tube, a middle tube assembly fixed to the mounting shell, a mounting frame fixed to the upper end of the middle tube assembly, a support frame fixed to both sides of the bottom of the mounting frame and a lower fork hinged to the mounting shell; the mounting frame is annular, and a connecting pipe fixedly connected to the middle tube assembly is provided on the mounting frame, and both ends of the connecting pipe are fixed to the mounting frame; the supporting frame comprises a first supporting pipe and a second supporting pipe, and the first supporting pipe One end is fixedly connected to the middle tube assembly, the other end of the first support tube is fixedly connected to the mounting frame, and a cavity is formed between the two first support tubes, the mounting frame and the middle tube assembly; one end of the second support tube is fixedly connected to the bottom of the first support tube, and the other end of the second support tube is fixedly connected to the mounting shell; the lower fork includes two lower fork tubes, one end of the lower fork tube is hinged to the mounting shell, and the other end of the lower fork tube is fixedly connected to the tail fork, a shock absorber is provided between the tail fork and the second support tube, one end of the shock absorber is hinged to the second support tube, and the other end of the shock absorber is hinged to the tail fork. Principle of the utility model: The mounting shell is used to install the controller box, and the user can place goods in the cavity at the bottom of the mounting frame or on the mounting frame, and the overall structural stability is strong.

[0005] As an improvement, the middle tube assembly includes two symmetrically distributed middle tubes, one end of the middle tube is welded to the mounting shell, and the other end of the middle tube is welded to the connecting tube.

[0006] As an improvement, a baffle is provided between the mounting frame and the first support tube, and the baffle is respectively welded and fixed to the mounting frame, the first support tube and the middle tube.

[0007] As an improvement, an articulated seat is provided on the mounting shell, and the articulated seat includes an articulated portion and a fixed portion, the fixed portion is welded to the middle tube, the fixed portion is U-shaped, the articulated portion is hinged to the fixed portion, and the lower fork tube is welded to the articulated portion.

[0008] As an improvement, a bridge piece is provided at the front end of the lower fork tube, and the bridge piece is respectively welded and fixed to the two lower fork tubes.

[0009] As an improvement, a reinforcement box is provided between the middle tube assembly and the lower tube, and the reinforcement box is respectively welded and fixed to the mounting shell, the lower tube and the middle tube assembly.

[0010] As an improvement, the mounting frame is provided with a mounting plate, and both ends of the mounting plate are welded to the mounting frame.

[0011] A reinforcing tube is provided between the mounting frame and the first supporting tube, and two ends of the reinforcing tube are respectively welded and fixed to the mounting frame and the first supporting tube.

[0012] As an improvement, a hinge shaft is provided on the second support tube, the hinge shaft passes through the two second support tubes and is welded thereto, and the shock absorber is hinged to the hinge shaft.

[0013] The beneficial effects of the utility model are as follows: a cavity for placing goods is provided at the bottom of the mounting frame, and the user can place the goods in the cavity or fix them on the mounting frame, which is highly practical; the utility model has a stable structure and can provide users with a better experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a rear view of the utility model.

[0016] Figure 3 A schematic diagram of the structure of the mounting frame.

[0017] Figure 4 It is a schematic diagram of the structure of the lower fork and the mounting shell.

[0018] Explanation of the numbers in the figure: 1. head tube; 2. down tube; 3. mounting shell; 31. reinforcement box; 32. hinge seat; 321. fixing part; 322. hinge part; 4. middle tube; 5. mounting frame; 51. connecting tube; 52. mounting plate; 53. baffle; 54. reinforcement tube; 6. first support tube; 7. second support tube; 71. shock absorber; 8. lower fork tube; 81. bridge plate; 82. tail fork. Implementation

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings of the specification;

[0020] like Figure 1 , 2 As shown in Figure 3, an electric bicycle frame with a shelf comprises a down tube 2, a head tube 1 fixed to the front end of the down tube 2, a mounting shell 3 fixed to the rear end of the down tube 2, a middle tube assembly fixed on the mounting shell 3, a mounting frame 5 fixed to the upper end of the middle tube assembly, a support frame fixed to the bottom of the mounting frame 5 and a lower fork hinged to the mounting shell 3; the mounting shell 3 is used to place a controller box; a connecting pipe 51 is provided at the front end of the mounting frame 5, and both ends of the connecting pipe 51 are welded to the mounting frame 5; the middle tube assembly comprises two middle tubes 4 symmetrically distributed on the mounting shell 3, one end of the middle tube 4 is welded to the mounting shell 3, and the other end of the middle tube 4 is welded to the connecting pipe 51; a reinforcement box 31 is provided between the middle tube assembly and the down tube 2, and the reinforcement box 31 is respectively welded to the middle tube assembly, the down tube 2 and the mounting shell 3, and the reinforcement box 31 improves the structural strength between the down tube 2 and the middle tube 4, and can improve the overall stability of the frame. The mounting frame 5 is provided with a plurality of mounting pieces 52, each of which is rectangular. Both ends of the mounting pieces 52 are welded to the mounting frame 5, and mounting holes are provided on the mounting pieces 52, which can facilitate users to install seat cushions and fix goods, and are highly practical.

[0021] like Figure 1 , 2As shown in , 4, symmetrically distributed support frames are provided on both sides of the bottom of the mounting frame 5, and the support frame includes a first support tube 6 and a second support tube 7. The two first support tubes 6 correspond to the two middle tubes 4 one by one, one end of the first support tube 6 is welded to the middle tube 4, and the other end of the first support tube 6 is welded to the mounting frame 5. A cavity is formed between the mounting frame 5, the two first support tubes 6 and the middle tube assembly, and the user can place goods in the cavity to improve practicality; the first support tube 6 is provided with a reinforcing tube 54 welded thereto, and one end of the reinforcing tube 54 is welded to the mounting frame 5. The reinforcing tube 54 can improve the bearing strength of the mounting frame 5 to avoid bending and damage of the mounting frame 5 due to too much goods being carried on the mounting frame 5; symmetrically distributed baffles 53 are provided at the bottom of the mounting frame 5, and the baffles 53 are respectively welded to the mounting frame 5, the first support tube 6 and the middle tube 4. The baffles 53 can not only improve the bearing strength of the mounting frame 5, but also prevent the items in the cavity from sliding out from both sides of the cavity. The upper end of the second support tube 7 is welded to the first support tube 6, and the lower end of the second support tube 7 is welded to the mounting shell 3. The second support tube 7 can support the mounting frame 5, thereby improving the structural stability of the entire frame. The mounting shell 3 is provided with a hinge seat 32, and the hinge seat 32 includes a fixed portion 321 and a hinge portion 322. The fixed portion 321 is U-shaped, and the fixed portion 321 is welded to the mounting shell 3. The hinge portion 322 is hinged to the fixed portion 321, and the hinge portion 322 is welded to the lower fork. The lower fork includes a lower fork tube 8 symmetrically welded to the hinge portion 322. The two lower forks The tube 8 is provided with a bridge piece 81 welded thereto, and the rear end of the lower fork tube 8 is provided with a tail fork 82 fixedly connected thereto, a shock absorber 71 is provided between the tail fork 82 and the second support tube 7, and the second support tube 7 is provided with a hinge shaft, the hinge shaft passes through two second support tubes 7 and is welded to the two second support tubes 7, and the shock absorber 71 is hinged to the hinge shaft; the shock absorber 71 can relieve the pressure brought by the goods on the mounting frame 5, reduce the pressure on the lower fork and the tail fork 82, and also can buffer the impact force brought to the user and the entire vehicle body due to bumps during driving, thereby improving the user experience and the overall structural strength of the vehicle body.

[0022] Principle of the utility model: users can place goods at the bottom of the mounting frame 5 or on the mounting frame 5, which is convenient for users to transport goods with electric bicycles and has high practicality; the reinforcement box 31 can also improve the structural strength between the middle tube assembly and the lower tube 2; a support frame and a shock absorber 71 are provided at the bottom of the mounting frame 5, which can improve the overall strength of the vehicle body and also bring users a better driving experience.

Claims

1. An electric bicycle frame with a shelf, characterized in that: The invention comprises a down tube, a head tube fixed at the front end of the down tube, a mounting shell fixed at the rear end of the down tube, a middle tube assembly fixed on the mounting shell, a mounting frame fixed at the upper end of the middle tube assembly, a support frame fixed at both sides of the bottom of the mounting frame, and a down fork hinged to the mounting shell; the mounting frame is annular, and a connecting pipe fixedly connected to the middle tube assembly is provided on the mounting frame, and both ends of the connecting pipe are fixed to the mounting frame; the support frame comprises a first supporting tube and a second supporting tube, one end of the first supporting tube is fixedly connected to the middle tube assembly, and the other end of the first supporting tube is fixedly connected to the mounting frame, and a cavity is formed between the two first supporting tubes, the mounting frame and the middle tube assembly; one end of the second supporting tube is fixed to the bottom of the first supporting tube, and the other end of the second supporting tube is fixedly connected to the mounting shell; the down fork comprises two down fork tubes, one end of the down fork tube is hinged to the mounting shell, and the other end of the down fork tube is fixedly connected to the tail fork, and a shock absorber is provided between the tail fork and the second supporting tube, one end of the shock absorber is hinged to the second supporting tube, and the other end of the shock absorber is hinged to the tail fork.

2. The electric bicycle frame with a shelf according to claim 1, characterized in that: The middle pipe assembly comprises two symmetrically distributed middle pipes, one end of the middle pipe is welded to the mounting shell, and the other end of the middle pipe is welded to the connecting pipe.

3. The electric bicycle frame with a shelf according to claim 2, characterized in that: A baffle is provided between the mounting frame and the first supporting tube, and the baffle is respectively welded and fixed to the mounting frame, the first supporting tube and the middle tube.

4. The electric bicycle frame with a shelf according to claim 2, characterized in that: An articulated seat is provided on the mounting shell, and the articulated seat includes an articulated portion and a fixed portion, the fixed portion is welded to the middle tube, the fixed portion is U-shaped, the articulated portion is hinged to the fixed portion, and the lower fork tube is welded to the articulated portion.

5. The electric bicycle frame with a shelf according to claim 4, characterized in that: A bridge piece is provided at the front end of the lower fork tube, and the bridge piece is respectively welded and fixed to the two lower fork tubes.

6. The electric bicycle frame with a cargo rack according to claim 1, characterized in that: A reinforcement box is provided between the middle tube assembly and the lower tube, and the reinforcement box is respectively welded and fixed to the mounting shell, the lower tube and the middle tube assembly.

7. The electric bicycle frame with a cargo rack according to claim 1, characterized in that: The mounting frame is provided with a mounting piece, and two ends of the mounting piece are welded to the mounting frame.

8. The electric bicycle frame with a cargo rack according to claim 1, characterized in that: A reinforcing tube is provided between the mounting frame and the first supporting tube, and two ends of the reinforcing tube are respectively welded and fixed to the mounting frame and the first supporting tube.

9. The electric bicycle frame with a cargo rack according to claim 1, characterized in that: The second support tube is provided with an articulated shaft, the articulated shaft passes through the two second support tubes and is welded thereto, and the shock absorber is articulated with the articulated shaft.

Images