High-load truck frame

Abstract

The utility model discloses a high-load truck frame which comprises a front frame body, the front frame body comprises an inverted front truck body bent pipe, a head pipe is fixedly installed on the upper portion of the front truck body bent pipe, and a battery is fixedly installed in the front truck body bent pipe. The middle frame comprises two transverse pipes, the two transverse pipes are fixedly welded to the two arms of the front vehicle body bent pipe, and a forging piece is arranged between the two transverse pipes; the tail fork comprises two rear bent pipes, the upper ends of the two rear bent pipes are fixedly connected, the upper sides of the two rear bent pipes are horizontally bent, the rear ends of the rear bent pipes are fixedly connected with rear fork feet, rear bicycle body vertical pipe supporting pipes are fixedly welded in the two rear bent pipes, and the rear bicycle body vertical pipe supporting pipes are fixedly welded in the rear bent pipes. The two rear vehicle body vertical pipe supporting pipes are fixedly connected through a rear vehicle body reinforcing transverse pipe. According to the utility model, the riding stability of the power-assisted electric vehicle is improved, the position of the battery is higher, the problems of battery collision and water inflow are avoided, and the protection effect on the battery is better.

Description

Technical Field

[0001] The utility model relates to the technical field of assisted electric vehicles, in particular to a high-load truck frame. Background Technique

[0002] An assisted electric vehicle refers to a vehicle that uses a battery as an auxiliary energy source and is equipped with a motor, a controller, a battery, a handlebar, a brake handle and other control components and a display instrument system on the basis of an ordinary bicycle. An assisted electric vehicle is a vehicle that combines a traditional bicycle and an electric system. It provides additional power through an electric motor to help the rider ride more easily, especially when going uphill or on a long-distance ride.

[0003] The batteries of existing assisted electric vehicles are usually placed at the bottom or rear of the vehicle frame. On the one hand, this will cause the center of gravity of the assisted electric vehicle to be biased to the rear, resulting in a decrease in stability when controlling the electric vehicle and making it easy to lose balance when turning or decelerating. On the other hand, the overall distance of the battery from the ground is relatively close. When the vehicle wades through water, the battery is easily flooded, and when passing through some stepped terrains, the battery is easily knocked against the steps, causing damage to the battery. Moreover, after riding on existing assisted electric vehicles, the space and weight for carrying items are relatively small, and the load-carrying capacity is poor.

[0004] Therefore, we propose a high-load truck frame to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-load truck frame to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-load truck frame includes a front frame, the front frame includes an inverted front body bent pipe, a head pipe is fixedly installed on the upper part of the front body bent pipe, and a battery is fixedly installed inside the front body bent pipe;

[0008] A middle frame, the middle frame includes two cross pipes, the two cross pipes are fixedly welded to the two arms of the front body bent pipe, and a forging is arranged between the two cross pipes;

[0009] A tail fork, the tail fork includes two rear bent pipes, the upper ends of the two rear bent pipes are fixedly connected, the upper sides of the two rear bent pipes are both horizontally bent, the rear ends of the rear bent pipes are fixedly connected with rear fork feet, rear body vertical pipe support pipes are fixedly welded inside the two rear bent pipes, the two rear body vertical pipe support pipes are fixedly connected by a rear body strengthening cross pipe, and the lower ends of the two rear bent pipes are respectively fixedly connected to the two cross pipes.

[0010] Furthermore, the two rear bent pipes are integrally formed between them, and the two transverse pipes and the two rear bent pipes are integrally formed with each other.

[0011] Furthermore, a foot support is rotatably mounted on the lower side of the rear end of the center rack, and a spring is hooked between the foot support and the center rack.

[0012] Furthermore, a rear rack is fixedly mounted on the upper side of the rear end of the tail fork.

[0013] Furthermore, the upper end surface of the rear shelf is flush with the upper end of the rear bent pipe.

[0014] Furthermore, a pressure rod is fixedly connected to the foot support.

[0015] Compared with the prior art, the beneficial effects of the present invention are at least:

[0016] 1. By setting the battery and installing it on the front frame, the overall center of gravity of the battery is moved forward. When riding, the overall center of gravity of the power-assisted electric vehicle is closer to the center position, which increases the stability of the power-assisted electric vehicle during riding. Moreover, the overall position of the battery is higher. When wading and passing through stepped terrain, there will be no problems with battery bumps and water ingress, which has a better protection effect on the battery.

[0017] 2. By setting up a rear rack, on the one hand, the space in the middle part of the frame is large and can be used to place objects. On the other hand, the rear rack can carry heavier loads and has better load-bearing capacity.

[0018] The utility model improves the stability of the power-assisted electric vehicle during riding and the battery is positioned higher, so problems such as battery bumps and water ingress will not occur, and the protection effect on the battery is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the foot support in the present invention.

[0022] As shown in the figure: 1. Front frame; 2. Front body bend; 3. Head pipe; 4. Battery; 5. Center rack; 6. Cross pipe; 7. Forgings; 8. Tail fork; 9. Rear bend; 10. Rear fork leg; 11. Rear body vertical tube support tube; 12. Rear body reinforced cross tube; 13. Kickstand; 14. Spring; 15. Rear rack; 16. Pressure rod. DETAILED DESCRIPTION

[0023] The following will describe the present utility model in detail in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and any structural, methodical, or functional transformations made by those of ordinary skill in the art based on these embodiments are included within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 3 , a high-load truck frame, including a front frame 1. The front frame 1 includes an inverted front body bent pipe 2. It is worth mentioning that a sheet metal piece is fixedly welded inside the front body bent pipe 2 to strengthen the front body bent pipe 2 and prevent the front body bent pipe 2 from deforming. A head pipe 3 is fixedly installed on the upper end of the front body bent pipe 2. It should be noted that two inclined pipes are fixedly welded to the lower side of the head pipe 3, and both ends of the two inclined pipes away from the head pipe 3 are fixedly welded to the front body bent pipe 2, playing a role in strengthening the head pipe 3. A battery 4 is fixedly installed inside the front body bent pipe 2;

[0025] In this embodiment, it includes a mid-frame 5. The mid-frame 5 includes two cross pipes 6. The two cross pipes 6 are fixedly welded to the two arms of the front body bent pipe 2. There is a forging 7 between the two cross pipes 6. The forging 7 is fixedly installed with the cross pipes 6 through bolts. It should be noted that a footrest 13 is rotatably installed on the lower side of the rear end of the mid-frame 5. It should be noted that a pressure rod 16 is fixedly connected to the footrest 13, and a spring 14 is hooked between the footrest 13 and the mid-frame 5;

[0026] In this embodiment, it includes a tail fork 8. The tail fork 8 includes two rear bent pipes 9. The upper ends of the two rear bent pipes 9 are fixedly connected. The upper sides of the two rear bent pipes 9 are both horizontally bent. The rear end of the rear bent pipe 9 is fixedly connected with a rear fork foot 10. Rear body vertical pipe support pipes 11 are fixedly welded inside the two rear bent pipes 9. The two rear body vertical pipe support pipes 11 are fixedly connected through a rear body strengthening cross pipe 12. It should be noted that the rear body vertical pipe support pipes 11 are used to strengthen the rear bent pipes 9 and improve their load-bearing capacity. The lower ends of the two rear bent pipes 9 are respectively fixedly connected to the two cross pipes 6. Specifically, the two rear bent pipes 9 are integrally formed, and the two cross pipes 6 and the two rear bent pipes 9 are integrally formed. It is worth mentioning that a rear shelf 15 is fixedly installed on the upper side of the rear end of the tail fork 8. It should be noted that the rear shelf 15 is fixed to the rear bent pipe 9 through bolts. Further, the upper end surface of the rear shelf 15 is flush with the upper end of the rear bent pipe 9.

[0027] In this embodiment, the battery 4 is installed on the front frame 1. The overall center of gravity of the battery 4 is forward. When riding, the overall center of gravity of the assisted electric vehicle is closer to the center position, increasing the stability of the assisted electric vehicle during riding. Moreover, the overall position of the battery 4 is relatively high, and when wading through water and passing through step terrains, there will be no problems of battery bumping and water ingress, and the protection effect on the battery is better.

[0028] Working principle: The grip and the front wheel are installed through the head tube 3, the rear wheel is installed through the rear fork foot 10, and it can be ridden by driving through the battery 4.

[0029] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners understandable by those skilled in the art.

[0030] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-load truck frame, characterized in that: including, a front frame (1), the front frame (1) includes an inverted front body bent pipe (2), a head pipe (3) is fixedly installed on the upper part of the front body bent pipe (2), and a battery (4) is fixedly installed inside the front body bent pipe (2); a mid-frame (5), the mid-frame (5) includes two cross pipes (6), the two cross pipes (6) are fixedly welded to the two arms of the front body bent pipe (2), and a forging (7) is arranged between the two cross pipes (6); a rear fork (8), the rear fork (8) includes two rear bent pipes (9), the upper ends of the two rear bent pipes (9) are fixedly connected, the upper sides of the two rear bent pipes (9) are horizontally bent, the rear ends of the rear bent pipes (9) are fixedly connected with rear fork feet (10), rear body vertical pipe support pipes (11) are fixedly welded inside the two rear bent pipes (9), the two rear body vertical pipe support pipes (11) are fixedly connected by a rear body strengthening cross pipe (12), and the lower ends of the two rear bent pipes (9) are respectively fixedly connected with the two cross pipes (6).

2. The high-load truck frame according to claim 1, wherein: The two rear bent pipes (9) are integrally formed, and the two cross pipes (6) and the two rear bent pipes (9) are integrally formed.

3. The high-load truck frame according to claim 1, characterized in that: A footrest (13) is rotatably installed on the lower side of the rear end of the mid-frame (5), and a spring (14) is hooked between the footrest (13) and the mid-frame (5).

4. A high-load truck frame according to claim 1, characterized in that: A rear luggage rack (15) is fixedly installed on the upper side of the rear end of the rear fork (8).

5. The high-load truck frame according to claim 4, wherein: The upper end surface of the rear luggage rack (15) is flush with the upper ends of the rear bent pipes (9).

6. The high-load truck frame according to claim 3, wherein: A pressure rod (16) is fixedly connected to the footrest (13).

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