High-strength scooter frame upper plate structure
By embedding a strength reinforcing block on the scooter frame into the inclined tube rotating connection frame, the stress concentration problem at the inclined tube rotating connection point is solved, achieving a high-strength connection while reducing costs.
Patent Information
- Application Number
- CN202520317770.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing scooter frames suffer from metal fatigue or fracture due to stress concentration at the slant tube rotation joints, and the use of high-strength materials such as aluminum alloys or carbon fiber increases manufacturing costs.
A strength-reinforcing block is embedded in the frame, and the inclined tube rotating connecting frame is connected to the strength-reinforcing block by bolts to disperse stress and avoid stress concentration.
The connection strength between the slanted tube rotating connector and the frame is improved, avoiding metal fatigue and fracture, while reducing material and manufacturing costs.
Smart Images

Figure CN223618858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a scooter accessory, and more particularly to a high-strength scooter frame upper plate structure. Background Technology
[0002] The scooter frame is mainly used to connect components such as the pedals, rear wheel, and slant tube. The slant tube connects the front wheel and the steering bar. Some scooters have a folding function for easy carrying and storage. The slant tube swivel connector is used to connect the frame and the slant tube to achieve the folding function. The stress concentration at the connection between the slant tube swivel connector and the frame can lead to metal fatigue or fracture due to repeated stress. The entire frame can be made of high-strength materials (such as aluminum alloy, carbon fiber, etc.) to ensure connection strength, but such materials are expensive, directly increasing the overall manufacturing cost of the scooter. Utility Model Content
[0003] This utility model discloses a high-strength scooter frame upper plate structure, including: a frame, a slant tube rotating connecting frame, and a strength reinforcing block. The slant tube rotating connecting frame is disposed on the upper end face of the frame upper plate, and the strength reinforcing block is disposed inside the frame and connected to the frame. The slant tube rotating connecting frame is connected to the strength reinforcing block after passing through the upper end face of the frame upper plate with bolts. This utility model achieves the technical solution of increasing the connection strength between the slant tube rotating connecting frame and the frame by embedding the strength reinforcing block into the frame for connection with the slant tube rotating connecting frame, without relying on the overall strength of the frame. It solves the problem that existing frame reinforcement requires stress concentration at the connection point between the frame and the slant tube rotating connecting frame, which can lead to metal fatigue or fracture due to repeated stress, and that increasing the overall material or structural strength of the frame is too costly.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A high-strength scooter frame upper plate structure includes: a frame, a slant tube rotating connecting frame, and a strength reinforcing block. The slant tube rotating connecting frame is disposed on the upper end face of the frame upper plate of the frame, and the strength reinforcing block is disposed inside the frame and connected to the frame. The slant tube rotating connecting frame is connected to the strength reinforcing block after passing through the upper end face of the frame upper plate with bolts.
[0006] The upper surface of the frame is the frame top plate, and the two side surfaces of the frame are the frame side plates; the upper surface of the strength reinforcement block is the reinforcement block top plate, and the two side surfaces of the strength reinforcement block are the reinforcement block side plates; the reinforcement block side plates are connected to the frame side plates.
[0007] The upper plate of the reinforcing block is closely attached to the upper plate of the frame, and the bolts pass through the lower plate of the connecting frame and the upper plate of the frame to connect with the upper plate of the reinforcing block.
[0008] This utility model achieves a technical solution by embedding a strength-enhancing block into the frame for connection with the slant tube rotating connector, thereby increasing the connection strength between the slant tube rotating connector and the frame without relying on the overall strength of the frame. This solves the problem that existing frame reinforcements at the connection points between the frame and the slant tube rotating connector can lead to stress concentration, resulting in metal fatigue or fracture due to repeated stress, and that increasing the overall material or structural strength of the frame is too costly. Attached Figure Description
[0009] Figure 1 This is a perspective view of a partial component of the scooter in the structure of this utility model equipment;
[0010] Figure 2 This is a perspective view of the present utility model;
[0011] Figure 3 This is a cross-sectional view of the present invention;
[0012] Figure 4 This is an exploded view of the present invention;
[0013] In the diagram: Frame 1, Frame Top Plate 11, Frame Side Plate 12
[0014] 2. Inclined tube; 3. Inclined tube rotating connecting frame; 31. Lower plate of connecting frame; 32. Side plate of connecting frame.
[0015] Strength-reinforcing block 4, upper plate of reinforcing block 41, side plate of reinforcing block 42. Detailed Implementation
[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0020] like Figures 1-4 As shown: A high-strength scooter frame upper plate structure includes: a frame 1, a slant tube rotating connecting frame 3, and a strength reinforcing block 4. The slant tube rotating connecting frame 3 is disposed on the upper end face of the frame upper plate 11 of the frame 1. The strength reinforcing block 4 is disposed inside the frame 1 and is connected to the frame 1. The slant tube rotating connecting frame 3 is connected to the strength reinforcing block 4 after passing through the upper end face of the frame upper plate 11 with bolts.
[0021] Preferably, the upper surface of the frame 1 is a frame upper plate 11, which is rectangular in shape and is used to connect with the slanted tube rotating connecting frame 3. The two side surfaces of the frame 1 are frame side plates 12; these side plates are used to connect with the strength reinforcing block 4. The upper surface of the strength reinforcing block 4 is a reinforcing block upper plate 41, and the two side surfaces of the strength reinforcing block 4 are reinforcing block side plates 42; these side plates 42 are connected to the frame side plates 12. This provides additional support and stability.
[0022] Preferably, the upper plate 41 of the reinforcing block is tightly attached to the upper plate 11 of the frame, and bolts pass through the lower plate 31 of the connecting frame and the upper plate 11 of the frame to connect with the upper plate 41 of the reinforcing block. During installation, the strength reinforcing block 4 is connected to the frame 1 by fastening bolts. The bolts pass through the upper plate 11 of the frame, the lower plate 31 of the connecting frame, and the upper plate 41 of the reinforcing block. This connection method ensures the firmness and reliability of the connection and prevents the possibility of bolt loosening. The connection between the reinforcing block 4 and the frame 1 is embedded, which can effectively transfer the force of the slanted tube rotating connecting frame 3 to the inside of the frame, avoiding excessive reinforcement of the external materials of the frame, thereby effectively reducing material and manufacturing costs.
[0023] This invention prioritizes the fatigue resistance of the connection between the frame 1 and the slant tube rotating connecting frame 3. A multi-point support design is employed at the connection point, and the stress borne by the slant tube rotating connecting frame 3 is effectively dispersed by the reinforcing block 4, preventing stress concentration. The use of bolted connections also enhances the stability of the connection, enabling the connection to withstand repeated dynamic loads over extended periods without fatigue failure.
[0024] This utility model achieves a technical solution by embedding the strength reinforcing block 4 into the frame 1 for connection with the slant tube rotating connecting frame 3. This solution increases the connection strength between the slant tube rotating connecting frame 3 and the frame 1 without relying on the overall strength of the frame 1. It solves the problem that existing methods of reinforcing the frame 1 and strengthening the connection between the slant tube rotating connecting frame 3 and the frame 1 can lead to stress concentration, metal fatigue, or fracture due to repeated stress, and also increase the cost of increasing the overall material or structural strength of the frame 1.
[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A high-strength scooter frame upper plate structure, characterized in that, include: The frame (1), the slant tube rotating connecting frame (3), and the strength reinforcing block (4) are arranged on the upper end face of the frame plate (11) of the frame (1). The strength reinforcing block (4) is arranged inside the frame (1) and connected to the frame (1). The slant tube rotating connecting frame (3) is connected to the strength reinforcing block (4) after passing through the upper end face of the frame plate (11) with bolts.
2. The high-strength scooter frame upper plate structure according to claim 1, characterized in that: The upper end face of the frame (1) is: frame upper plate (11), and the two side end faces of the frame (1) are: frame side plates (12); the upper end face of the strength reinforcing block (4) is: reinforcing block upper plate (41), and the two side end faces of the strength reinforcing block (4) are: reinforcing block side plates (42); the reinforcing block side plates (42) are connected to the frame side plates (12).
3. The high-strength scooter frame upper plate structure according to claim 2, characterized in that: The upper plate (41) of the reinforcing block is close to the upper plate (11) of the frame, and the bolt passes through the lower plate (31) of the connecting frame and the upper plate (11) of the frame to connect with the upper plate (41).