High-strength battery frame tube of intelligent electric power-assisted bicycle
By setting a bayonet and reinforcing ribs inside the battery frame tube of an electric bicycle to form a triangular partition structure, the problems of complex processing and easy wear of support plates in the existing technology are solved, and a high-strength and stable battery frame tube design is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
Existing smart electric bicycles have complex battery frame tube structures, high processing costs, easily worn support plates, and difficult maintenance.
The outer shell tube has three bayonet slots and reinforcing ribs inside, which are welded together to form a triangular partition structure. Combined with guide rib positioning columns, this enhances stability.
It improves the strength and stability of the battery vehicle frame tube, simplifies the manufacturing process, and reduces maintenance difficulty.
Smart Images

Figure CN223982618U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of intelligent electric bicycle accessories, specifically relates to a high-strength battery frame pipe of intelligent electric power-assisted bicycle. BACKGROUND
[0002] The intelligent electric bicycle adopts rechargeable battery power supply, when the battery box is arranged near vertically at the seat pipe or the front pipe, the position in the length direction of the vehicle body is occupied, resulting in the problem of wheel base and pedal layout, therefore, more and more battery boxes are arranged in the transverse inclined frame pipe, that is, the inclined pipe position at the center of the handle and pedal, however, considering the strength problem of the frame pipe, the frame pipe is usually arranged with a double-cavity or multi-cavity structure in the prior art, the top cavity is opened to form the mounting structure of the battery box, then a supporting plate is additionally arranged at the lower end, and the whole is integrally formed, the precision requirement is high, and the integral forming is relatively complex, and the equipment cost is high.
[0003] Therefore, the structure of the battery frame pipe of the electric bicycle needs to be improved. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model wants to solve the technical problem to provide a high-strength battery frame pipe of intelligent electric power-assisted bicycle, avoid the trouble that the battery frame pipe body and the supporting plate are integrally formed, the processing is complex, and the supporting plate is difficult to maintain and replace after wearing.
[0005] In order to solve the above technical problem, the utility model discloses a high-strength battery frame pipe of intelligent electric power-assisted bicycle, comprising:
[0006] The shell pipe body has a battery mounting opening at the upper end;
[0007] The first clamping hole is arranged at the middle section of one side of the inner wall of the shell pipe body, the second clamping hole is arranged at the bottom of the other side of the inner wall, and the third clamping hole is arranged at the central bottom surface, wherein the first clamping hole, the second clamping hole and the third clamping hole are respectively provided with a plurality of welding points;
[0008] The reinforcing rib plate is clamped in the first clamping hole, the second clamping hole and the third clamping hole, the reinforcing rib plate has corresponding first clamping legs, second clamping legs and third clamping legs, the first clamping legs and the second clamping legs extend at both ends of the reinforcing rib plate, and the third clamping leg extends downward from the lower surface of the reinforcing rib plate to the third clamping hole;
[0009] The guide rib positioning column is arranged on the upper wall of the shell pipe body, and the guide rib positioning column guides the both ends of the battery mounting opening, the guide rib positioning column comprises a straight edge part and a clamping ring part located at the end of the straight edge part.
[0010] According to the utility model one embodiment, wherein the first snap, second snap and third snap are formed by the snap edges on both sides, and the snap edges are extended and protrude from the inner wall of the shell pipe body.
[0011] According to the utility model one embodiment, wherein the snap edges of the first snap and the second snap gradually approach, and the upward snap edges are provided with welding points, and the middle of the snap edges of the third snap is provided with a welding point.
[0012] According to the utility model one embodiment, wherein the first snap, the second snap and the third snap are respectively provided with three welding points.
[0013] According to the utility model one embodiment, wherein the battery mounting opening is provided with a lock hole at one end.
[0014] Compared with the prior art, the utility model can obtain the following technical effects:
[0015] By setting three snaps in the shell pipe body, cooperating with the reinforcing rib plate guide to insert and set the buckle, forming a triangular partition, the strength support of the shell pipe body is ensured, and the welding points are designed to be welded stably and to be strengthened and stabilized.
[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the technical effects described above. DRAWINGS
[0017] The drawings described herein are used to provide further understanding of the utility model and form a part of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:
[0018] Fig. 1 is the high-strength battery frame pipe side view of the intelligent electric power-assisted bicycle of the utility model embodiment;
[0019] Fig. 2 is the shell pipe body perspective view of the utility model embodiment;
[0020] Fig. 3 is the shell pipe body bottom view of the utility model embodiment.
[0021] DRAWING IDENTIFICATION
[0022] Shell pipe body 10, battery mounting opening 11, first snap 21, second snap 22, third snap 23, welding point 30, reinforcing rib plate 40, first snap leg 41, second snap leg 42, third snap leg 43, guide rib positioning column 50, lock hole 60. DETAILED DESCRIPTION
[0023] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.
[0024] Please refer to Figs. 1 to 3 , Fig. 1 This is a side view of the high-strength battery frame tube of the intelligent electric-assisted bicycle according to an embodiment of the present invention; Fig. 2 This is a perspective view of the outer shell tube of an embodiment of this utility model; Fig. 3 This is a bottom view of the outer shell tube of an embodiment of this utility model.
[0025] As shown in the figure, a high-strength battery frame tube for an intelligent electric-assisted bicycle includes: an outer shell tube 10, with a battery mounting opening 11 at the upper end of the outer shell tube 10; a first latch 21 located in the middle section of one side of the inner wall of the outer shell tube 10, a second latch 22 located at the bottom of the other side of the inner wall, and a third latch 23 located at the center of the bottom surface, wherein the first latch 21, the second latch 22, and the third latch 23 are respectively provided with multiple welding points 30; and the first latch 21, the second latch 22, and the third latch are engaged with the battery frame. The reinforcing rib plate 40 of 23 has corresponding first locking feet 41, second locking feet 42, and third locking feet 43. The first locking feet 41 and second locking feet 42 extend to both ends of the reinforcing rib plate 40, and the third locking feet 43 extend downward from the lower surface of the reinforcing rib plate 40 to the third locking opening 23. The guide rib positioning post 50 is provided on the upper wall of the outer shell tube 10. The guide rib positioning post 50 guides both ends of the battery mounting opening 11. The guide rib positioning post 50 includes a straight ridge and a retaining ring located at the end of the straight ridge.
[0026] In one embodiment of this utility model, the outer shell tube 10 is an aluminum profile component, serving as part of the front tube frame of an electric-assisted bicycle. It forms the tube frame from the front of the bicycle to the sprocket, with front and rear connecting tube beam joints welded together for easy assembly. The upper end has a battery mounting opening 11 for placing the battery, saving space. Specifically, to ensure sufficient strength support, the outer shell tube 10 has three locking points on its inner side: a first locking point 21, a second locking point 22, and a third locking point 23. These three points are angled, forming a triangular support between the mating reinforcing rib plate 40 and the inner wall of the outer shell tube 10, greatly ensuring strength. Furthermore, the third locking foot 43 of the reinforcing rib plate 40 points downwards, further ensuring the strength of the entire reinforcing rib plate 40. Additionally, the reinforcing rib plate 40 separates the cavity of the outer shell tube 10, and its surface can be provided with wire holes. For the smaller lower cavity, wire harnesses can be arranged, improving space utilization.
[0027] The upper end face of the outer casing tube 10 is provided with guide rib positioning posts 50 for installing the upper and lower power connection modules of the battery pack at both ends of the battery mounting opening 11, enhancing positioning. Furthermore, the guide rib positioning post 50 includes a straight ridge and a retaining ring at the end of the straight ridge, facilitating guiding insertion and providing greater stability. A lock hole 60 is located at one end of the battery mounting opening 11 for installing a lock, thus providing an anti-theft function.
[0028] The first latch 21, the second latch 22, and the third latch 23 of this utility model are all formed by latch edges on both sides, thereby forming a clamping latch for easy guidance and stabilization. The latch edges extend and protrude from the inner wall of the outer casing tube 10, avoiding direct slotting on the wall surface, which would affect the strength.
[0029] Preferably, the first latch 21 and the second latch 22 are gradually brought closer together to form a latch, thus avoiding the problem of vibration, displacement and loosening. Welding points are set on the upward-facing latch edges to facilitate welding work. Welding points 30 are set in the middle of the latch edge of the third latch 23 to facilitate direct welding from the bottom. Its latch edge can be set as two vertical edges to make the bottom latch feet wide enough and provide better support.
[0030] In addition, the first bayonet 21, the second bayonet 22, and the third bayonet 23 are each provided with three welding points 30 to ensure sufficient welding stability. The welding points 30 are in the shape of slots.
[0031] In summary, this utility model provides a triangular partition by setting three slots inside the outer shell tube 10 and using the reinforcing rib plate 40 as a guide for inserting the buckle. This ensures the strength support of the outer shell tube 10. The welding point 30 is designed for welding stability, further enhancing stability.
[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A high strength battery frame tube for an intelligent electric assist bicycle, characterized in that, Comprising: A shell pipe body, the upper end of which has a battery mounting opening; A first clamping hole arranged in the middle of one side of the inner wall of the shell pipe body, a second clamping hole arranged at the bottom of the other side of the inner wall, and a third clamping hole arranged in the center of the bottom surface, wherein the first, second, and third clamping holes are respectively provided with a plurality of welding points; A reinforcing rib plate clamped in the first, second, and third clamping holes, the reinforcing rib plate having corresponding first, second, and third clamping legs, the first and second clamping legs extending at both ends of the reinforcing rib plate, and the third clamping leg extending downward from the lower surface of the reinforcing rib plate to the third clamping hole; A guide rib positioning column arranged on the upper wall of the shell pipe body, the guide rib positioning column guiding both ends of the battery mounting opening, the guide rib positioning column comprising a straight edge portion and a clamping ring portion located at the end of the straight edge portion.
2. The high strength battery frame tube of an intelligent electrically assisted bicycle of claim 1, wherein, Wherein the first, second, and third clamping holes are formed by clamping hole edges on both sides, and the clamping hole edges are extended and protruded from the inner wall of the shell pipe body.
3. The high-strength battery frame tube of an intelligent electrically assisted bicycle according to claim 2, characterized in that, Wherein the clamping hole edges of the first and second clamping holes gradually approach each other, and the welding points are arranged on the upward clamping hole edges, and the welding points are arranged in the middle of the clamping hole edges of the third clamping hole.
4. The high strength battery frame tube of an intelligent electrically assisted bicycle of claim 1, wherein, Wherein the first, second, and third clamping holes are respectively provided with 3 welding points.
5. The high strength battery frame tube of an intelligent electrically assisted bicycle of claim 1, wherein, Wherein one end of the battery mounting opening is provided with a lock hole.