Electric tricycle frame
By designing a detachable electric tricycle frame, the coordination of the connecting sleeve and the tube and the U-shaped fork support structure are solved, and the existing shelf is insufficient strength and small cargo capacity are achieved, achieving greater cargo capacity and convenience Maintenance effect.
Patent Information
- Application Number
- CN202420509628.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The shelf strength of existing electric tricycles is insufficient, have small cargo capacity, and are difficult to disassemble and maintain.
A frame is designed including upper pipe, lower pipe, seat pipe, rear fork, head pipe and front fork. The front fork and the shelf are connected through a connecting sleeve and a tube to loosen the connecting sleeve to detach the shelf. The shelf is supported by U-shaped forks, making the shelf larger as a whole and enhancing cargo capacity.
The shelf is removable and maintenance is achieved, and the shelf is supported by the front wheel, making the shelf larger overall and significantly enhancing the cargo capacity.
Smart Images
Figure CN222247501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electric bicycle, in particular to an electric tricycle frame. Background Art
[0002] Electric tricycles can be equipped with shelves, such as a handlebar shock-absorbing device for electric tricycles with Chinese patent publication number CN102774461A, which includes a handlebar, a handlebar shaft, an upper shock-absorbing fixing plate, a lower shock-absorbing fixing plate, a shock-absorbing structure, a front fork support frame, a front wheel, and a front shelf for reinforcing the handlebar. The handlebar shaft passes through the triangular plate-shaped upper shock-absorbing fixing plate and the lower shock-absorbing fixing plate in sequence, and is locked and fixed with locking nuts on the upper surface of the upper shock-absorbing fixing plate and the lower surface of the lower shock-absorbing fixing plate, respectively. Support rods of the spring shock-absorbing structure are fixedly installed at positions corresponding to the other two corners of the upper shock-absorbing fixing plate and the lower shock-absorbing fixing plate. The lower end of the shock-absorbing structure is fixedly provided with a front fork support frame, and the front side of the upper shock-absorbing fixing plate is fixedly provided with an L-shaped front shelf for reinforcing the handlebar. The shelf of this electric tricycle frame is set on the front fork. Due to the insufficient strength of the shelf, the shelf is relatively small as a whole, so the cargo carrying capacity is insufficient. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide an electric tricycle frame, the shelf is larger as a whole, the cargo carrying capacity is stronger, and the shelf can be disassembled for easy maintenance.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: an electric tricycle frame, including an upper tube, a lower tube, a seat tube, a rear fork, a head tube and a front fork, the front fork includes a steering tube that rotates with the head tube and two fork tubes symmetrically arranged on both sides of the steering tube, the fork tube is connected to the steering tube through a first connecting tube, and the lower end of the fork tube is provided with a connecting sleeve; a shelf is provided in front of the front fork, and the lower end of the shelf is provided with two inserts corresponding to the connecting sleeve respectively, and the two sides of the shelf are symmetrically provided with U-shaped forks for installing the front wheel. Principle of the utility model: the front fork and the shelf are connected by the connection sleeve and the insert, and the insert can be withdrawn by loosening the connection sleeve, and the shelf is detachable, which is convenient for the maintenance of the shelf; the front wheel is arranged on the shelf through the U-shaped fork, and the front wheel directly supports the shelf, so the shelf as a whole can be made larger, thereby enhancing the cargo carrying capacity of the shelf.
[0005] As an improvement, the shelf is L-shaped, comprising two symmetrically arranged L-shaped tubes and a plurality of reinforcing tubes arranged between the two L-shaped tubes.
[0006] As an improvement, the insert pipe is welded at the turning point of the L-shaped pipe.
[0007] As an improvement, the U-shaped fork is connected to its adjacent L-shaped tube via a second connecting tube.
[0008] As an improvement, a fixing seat is provided on the fork tube, a limiting groove is provided on the fixing seat, and a limiting rod capable of being inserted into the limiting groove is provided on the L-shaped tube.
[0009] As an improvement, one end of the upper tube is connected to the head tube, the other end of the upper tube is connected to the seat tube, one end of the lower tube is connected to the head tube, the other end of the lower tube is connected to the five-way bracket, the lower end of the seat tube is connected to the five-way bracket, the five-way bracket is connected to the mounting seat, and the rear fork includes a seat fork and a chain fork, one end of the chain fork is connected to the mounting seat, one end of the seat fork is connected to the seat tube, and the other end of the chain fork is connected to the other end of the seat fork.
[0010] As an improvement, a rear seat frame is provided above the rear wheel position, one end of the rear seat frame is connected to the seat tube, and a support frame is provided between the rear seat frame and the rear seat fork.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The front fork and the shelf are connected through the connection sleeve and the insertion tube. The insertion tube can be withdrawn by loosening the connection sleeve. The shelf is detachable, which is convenient for maintenance. The front wheel is set on the shelf through a U-shaped fork, and the front wheel directly supports the shelf. Therefore, the overall shelf can be made larger, thereby enhancing the cargo carrying capacity of the shelf. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the utility model frame.
[0014] Figure 2 This is a schematic diagram of the front fork.
[0015] Figure 3 A schematic diagram of the front fork side view.
[0016] Figure 4 This is a schematic diagram of the front of the shelf.
[0017] Figure 5 This is a side view of the shelf. DETAILED DESCRIPTION
[0018] The utility model will be further described below in conjunction with the accompanying drawings.
[0019] like Figure 1As shown, an electric tricycle frame includes an upper tube 4, a lower tube 5, a seat tube 6, a rear fork, a head tube 1, a front fork 2 and a shelf 3 arranged in front of the front fork 2. One end of the upper tube 4 is connected to the head tube 1, the other end of the upper tube 4 is connected to the seat tube 6, one end of the lower tube 5 is connected to the head tube 1, the other end of the lower tube 5 is connected to the five-way bracket 7, the lower end of the seat tube 6 is connected to the five-way bracket 7, and the five-way bracket 7 is connected to the mounting seat 8; the rear fork includes a rear seat fork 10 and a rear chain fork 9, one end of the rear chain fork 9 is connected to the mounting seat 8, one end of the rear seat fork 10 is connected to the seat tube 6, and the other end of the rear chain fork 9 is connected to the other end of the rear seat fork 10; a rear seat frame 11 is provided above the rear wheel position, one end of the rear seat frame 11 is connected to the seat tube 6, and a support frame 12 is provided between the rear seat frame 11 and the rear seat fork 10; a battery accommodating groove is provided at the rear of the seat tube 6, after the battery 13 is inserted into the battery accommodating groove, the lower end of the battery 13 is against the mounting seat 8, and the battery passes through the rear seat fork 10 and the rear seat frame 11.
[0020] like Figure 2 , 3 As shown, the front fork 2 includes a steering tube 21 that rotates with the head tube 1 and two fork tubes 22 symmetrically arranged on both sides of the steering tube 21; the fork tube 22 is connected to the steering tube 21 through a first connecting tube 24, and a number of reinforcing tubes are arranged between the two fork tubes 22; the lower end of the fork tube 22 is provided with a connecting sleeve 23, and the connecting sleeve 23 is C-shaped and can be clamped by bolt locking. A clamping bolt extending into the connecting sleeve 23 is also provided on one side of the connector. After the insert is inserted into the connecting sleeve 23, the insert is fixed by the clamping function of the clamping bolt and the connecting sleeve 23; the fork tube 22 is provided with a fixing seat 25, and the fixing seat 25 is provided with a limit groove. Figure 4 , 5 As shown, the shelf 3 is L-shaped, and includes two symmetrically arranged L-shaped tubes 31 and a plurality of reinforcing tubes 33 arranged between the two L-shaped tubes 31. The L-shaped tube 31 is formed by bending the tube as a whole, and the distance between the two L-shaped tubes 31 is the same as the distance between the two fork tubes 22. The lower end of the shelf 3 is provided with two inserts 35 corresponding to the connecting sleeve 23 respectively, and the inserts 35 are welded at the turning point of the L-shaped tube 31, and the inserts 35 can be inserted into the connecting sleeve 23. Both sides of the shelf 3 are provided with symmetrically arranged U-shaped forks 32 for installing the front wheels, and the U-shaped forks 32 are connected to the adjacent L-shaped tubes 31 through the second connecting tube 36. The L-shaped tube 31 is provided with a limiting rod 34 that can be inserted into the limiting groove. When the shelf 3 is matched with the front fork 2, the limiting rod 34 can be manually inserted into the limiting groove of the fixing seat 25 of the front fork 2.
[0021] Principle of the utility model: the front fork 2 and the shelf 3 are connected by the connection sleeve 23 and the insertion tube 35. The insertion tube 35 can be withdrawn by loosening the connection sleeve 23, and the shelf 3 is detachable, which is convenient for maintenance of the shelf 3; the front wheel is arranged on the shelf 3 through a U-shaped fork, and the front wheel directly supports the shelf 3, so the shelf 3 as a whole can be made larger, thereby enhancing the cargo carrying capacity of the shelf 3.
Claims
1. An electric tricycle frame, comprising an upper tube, a lower tube, a seat tube, a rear fork, a head tube and a front fork, characterized in that: The front fork includes a steering tube rotatably matched with the head tube and two fork tubes symmetrically arranged on both sides of the steering tube, the fork tube is connected to the steering tube through a first connecting tube, and a connecting sleeve is provided at the lower end of the fork tube; a shelf is provided in front of the front fork, and two insertion tubes corresponding to the connecting sleeves are provided at the lower end of the shelf, and symmetrically arranged U-shaped forks for mounting the front wheel are provided on both sides of the shelf.
2. The electric tricycle frame according to claim 1, characterized in that: The shelf is L-shaped and comprises two symmetrically arranged L-shaped tubes and a plurality of reinforcing tubes arranged between the two L-shaped tubes.
3. The electric tricycle frame according to claim 2, characterized in that: The insert pipe is welded at the turning point of the L-shaped pipe.
4. The electric tricycle frame according to claim 2, characterized in that: The U-shaped fork is connected to the adjacent L-shaped tube via a second connecting tube.
5. The electric tricycle frame according to claim 2, characterized in that: The fork tube is provided with a fixing seat, the fixing seat is provided with a limiting groove, and the L-shaped tube is provided with a limiting rod which can be inserted into the limiting groove.
6. The electric tricycle frame according to claim 1, characterized in that: One end of the upper tube is connected to the head tube, the other end of the upper tube is connected to the seat tube, one end of the lower tube is connected to the head tube, the other end of the lower tube is connected to the five-way bracket, the lower end of the seat tube is connected to the five-way bracket, the five-way bracket is connected to the mounting seat, the rear fork includes a seat fork and a chain fork, one end of the chain fork is connected to the mounting seat, one end of the seat fork is connected to the seat tube, and the other end of the chain fork is connected to the other end of the seat fork.
7. The electric tricycle frame according to claim 6, characterized in that: A rear seat frame is arranged above the rear wheel position, one end of the rear seat frame is connected with the seat tube, and a support frame is arranged between the rear seat frame and the rear upper fork.