Electric bicycle five-way connection structure
By introducing a detachable mounting end seat and support rod locking system into the bottom bracket connection structure of electric bicycles, the problem of installation instability caused by wear of the bottom bracket threaded slot hole is solved, thereby achieving stability and reducing maintenance costs.
Patent Information
- Application Number
- CN202520763686.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-21
AI Technical Summary
The threaded slots of the traditional bicycle bottom bracket are prone to wear, leading to unstable bottom bracket installation, high maintenance costs, and the need to replace the entire bottom bracket assembly.
A bottom bracket connection structure for electric bicycles was designed, including a bottom bracket body, a reinforcing collar, a mounting end seat, and a welding base. By setting detachable mounting end seats and inner collars at both ends of the bottom bracket, combined with a support rod and a locking nut, the bottom bracket is stably fixed, and the strength of the vertical tube is enhanced by the support ring frame.
It improves the installation stability of the center shaft, reduces maintenance costs, facilitates the disassembly and replacement of damaged parts, and avoids the need to replace the entire bottom bracket.
Smart Images
Figure CN223919493U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bicycle technical field relates to electric bicycle five -way connection structure. BACKGROUND
[0002] The bicycle connecting five -way is generally located the bottom of frame, is in the position of frame toothed disc, is used to connect the component of middle tube, seat pipe etc. and bears the middle axle, and the traditional bicycle connecting five -way is mostly fixed and single structure, and the both ends are usually provided with the thread groove hole for fixing the middle axle, and the inside of the groove hole is easy to wear under long -term use, thereby causing the poor installation stability of the middle axle, affecting the vehicle riding installation, and since the groove hole is directly provided in the both ends of the five -way, only the whole five -way can be replaced, and the multiple vehicle pipe fittings connected with the top of the five -way also need to be re -welded, so that the replacement and maintenance cost is higher, and improvement is needed. SUMMARY
[0003] The utility model discloses electric bicycle five -way connection structure to solve the problem in the background art.
[0004] The utility model discloses electric bicycle five -way connection structure, including five -way body, reinforcing sleeve ring and installation end seat and welding base, the middle position of five -way body is equipped with reinforcing sleeve ring, and five -way body and reinforcing sleeve ring integrally formed setting, the top of reinforcing sleeve ring is provided with welding base, and the both ends of five -way body are all installed with installation end seat, and the inside of installation end seat is provided with installation thread groove hole.
[0005] In the electric bicycle five -way connection structure described above, the top side of the five -way body is provided with a connecting piece, and the top end of the connecting piece is connected with a support ring frame.
[0006] In the electric bicycle five -way connection structure described above, the inside of the welding base is provided with a vertical pipe, and a welding end face is arranged between the top end of the vertical pipe and the welding base, and the bottom of the vertical pipe is sleeved in the inside of the support ring frame.
[0007] In the electric bicycle five -way connection structure described above, the both ends of the five -way body are provided with internal thread groove holes, one end of the installation end seat is provided with an internal sleeve ring, and the internal sleeve ring is sleeved in the inside of the internal thread groove hole.
[0008] In the electric bicycle five -way connection structure described above, the side position of the installation end seat is provided with a side support, a support rod is movably sleeved in the inside of the side support, one end of the support rod is connected with a limiting block, and the other end of the support rod is provided with a threaded head.
[0009] In the electric bicycle five-way connection structure, the side of the reinforcing sleeve ring is provided with a locking hole, and the threaded head is screwed with the locking nut on the side of the reinforcing sleeve ring through the locking hole.
[0010] Compared with the prior art, the electric bicycle five-way connection structure has the advantages that: the detachable mounting end seat is arranged at both ends of the five-way, the mounting end seat has mounting thread grooves in the inside, the central shaft can be fixed and supported, when the mounting end seat is installed, the inner sleeve ring at one end can be screwed and locked at the end of the five-way body first, then the threaded head at one end of the supporting rod is fixed on the reinforcing sleeve ring, the whole mounting end seat is reinforced by the supporting rod, the stability is good and the mounting end seat is not easy to shake, and the mounting end seat is convenient to disassemble, so when the mounting thread grooves are worn, only the mounting end seat needs to be disassembled and replaced, and the whole five-way does not need to be replaced, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the electric bicycle five-way connection structure of the utility model.
[0012] Figure 2 It is a vertical pipe mounting structure schematic view of the electric bicycle five-way connection structure of the utility model.
[0013] Figure 3 It is an internal thread groove structure schematic view of the electric bicycle five-way connection structure of the utility model.
[0014] Figure 4 It is a mounting end seat structure schematic view of the electric bicycle five-way connection structure of the utility model.
[0015] In the figure, 1, five-way body; 2, reinforcing sleeve ring; 3, mounting end seat; 4, welding base; 5, connecting piece; 6, support ring frame; 7, welding end face; 8, internal thread groove; 9, locking hole; 10, mounting thread groove; 11, inner sleeve ring; 12, side support; 13, limiting block; 14, supporting rod; 15, locking nut; 16, vertical pipe. DETAILED DESCRIPTION
[0016] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0017] The electric bicycle five-way connection structure comprises a five-way body 1, a reinforcing sleeve ring 2, a mounting end seat 3 and a welding base 4, the reinforcing sleeve ring 2 is arranged at the middle position of the five-way body 1, and the five-way body 1 and the reinforcing sleeve ring 2 are integrally formed, the welding base 4 is arranged at the top of the reinforcing sleeve ring 2, the mounting end seat 3 is arranged at both ends of the five-way body 1, and the mounting thread groove 10 is arranged in the inside of the mounting end seat 3.
[0018] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses electric bicycle five -way connection structure, specifically, the top side of five -way body 1 is provided with connecting piece 5, the top of connecting piece 5 is connected with support ring stand 6, and support ring stand 6 and connecting piece 5 are all metal parts, support ring stand 6 is sleeved at the bottom of vertical pipe 16, and traditional vertical pipe 16 is welded only at the bottom end, but the application is welded continuously, and the structure of support ring stand 6 is additionally increased, so when the bottom of vertical pipe 16 is impacted, the intensity is higher, and it is not easy to break.
[0019] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses electric bicycle five -way connection structure, specifically, the inside screw thread of welding base 4 is installed with vertical pipe 16, and welding end face 7 is arranged between the top of vertical pipe 16 and welding base 4, and the bottom of vertical pipe 16 is sleeved in the inside of support ring stand 6, welding end face 7 is mainly welded to the top of welding base 4, and the intensity of vertical pipe 16 installation is enhanced.
[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses electric bicycle five -way connection structure, specifically, the both ends of five -way body 1 are all provided with internal thread slot hole 8, and one end of installation end seat 3 is provided with inner sleeve ring 11, and the inside of internal thread slot hole 8 is sleeved with inner sleeve ring 11, and inner sleeve ring 11 and installation end seat 3 are integral structure, and inner sleeve ring 11 and installation end seat 3 are all metal materials.
[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses electric bicycle five -way connection structure, specifically, the side position of installation end seat 3 is provided with side support 12, and the inside of side support 12 movably sleeved with support rod 14, one end of support rod 14 is connected with limit block 13, and the other end of support rod 14 is provided with threaded head, and threaded head is directly cut and processed by special equipment, and support rod 14 is metal rod body, and side support 12 is also metal support, and limit block 13 is integrally arranged with support rod 14, and mainly limits one end of support rod 14.
[0022] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the edge side of the reinforcing sleeve ring 2 is provided with a locking hole 9, the threaded head is screwed with the locking nut 15 on the side surface of the reinforcing sleeve ring 2 through the locking hole 9, the locking nut 15 is a commonly known device of the prior art, which is directly purchased on the market, and here we only use it, and do not improve its structure and function, and we will not go into details, and the locking nut 15 has a rubber gasket on one side, so that the locking is more stable.
[0023] The utility model discloses electric bicycle five -way connecting structure, the application uses, first, the installation end seat 3 is installed at both ends of five -way body 1, when installing the installation end seat 3, the inner sleeve ring 11 of one end can be screwed first at the end of five -way body 1, then the support rod 14 inside the sliding side support 12 is made to pass through the reinforcing sleeve ring 2 with the threaded head of one end of support rod 14, and is locked through the locking nut 15, so that the support rod 14 can further support the installation end seat 3, after installing the installation end seat 3, the central shaft of bicycle can be directly screwed in the installation end seat 3 through the installation threaded slot hole 10, and the vertical pipe 16 of the application is operated as follows: first, the vertical pipe 16 passes through the support ring frame 6, then is directly screwed in the inside of the welded base 4, the welded base 4 is provided with a threaded groove in the inside, and the bottom of the vertical pipe 16 is provided with an external thread, so that the threaded locking can be carried out, then the vertical pipe 16 and the top of the welded base 4 are welded at the position of the welded end face 7, so that the fixing and installation of the whole vertical pipe 16 can be completed, and the installation structure makes the vertical pipe 16 have higher support strength.
[0024] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art. The specific embodiments described in the paper are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.
Claims
1. A five-hole connecting structure of an electric bicycle, comprising a five-hole body (1), a reinforcing sleeve ring (2), a mounting end seat (3) and a welding base (4), characterized in that, The middle part of the five-way body (1) is sleeved with a reinforcing sleeve ring (2), and the five-way body (1) and the reinforcing sleeve ring (2) are integrally formed, the top of the reinforcing sleeve ring (2) is provided with a welding base (4), both ends of the five-way body (1) are provided with a mounting end base (3), and the inside of the mounting end base (3) is provided with a mounting threaded groove hole (10).
2. The electric bicycle five-way connection structure according to claim 1, characterized in that, The top side of the five-way body (1) is provided with a connecting piece (5), and the top end of the connecting piece (5) is connected with a support ring frame (6).
3. The electric bicycle five-way connection structure according to claim 2, characterized in that, The inside of the welding base (4) is threaded with a vertical pipe (16), and a welding end face (7) is arranged between the vertical pipe (16) and the top end of the welding base (4), and the bottom of the vertical pipe (16) is sleeved in the inside of the support ring frame (6).
4. The electric bicycle five-way connection structure according to claim 1, characterized in that, Both ends of the five-way body (1) are provided with an internal threaded groove hole (8), one end of the mounting end base (3) is provided with an inner sleeve ring (11), and the inner sleeve ring (11) is sleeved in the inside of the internal threaded groove hole (8).
5. The electric bicycle five-way connection structure according to claim 1, characterized in that, The side of the mounting end base (3) is provided with a side support base (12), the inside of the side support base (12) movably sleeves a support rod (14), one end of the support rod (14) is connected with a limiting block (13), and the other end of the support rod (14) is provided with a threaded head.
6. The electric bicycle five-way connection structure according to claim 5, characterized in that, The side of the reinforcing sleeve ring (2) is provided with a locking hole (9), and the threaded head is threaded with a locking nut (15) on the side of the reinforcing sleeve ring (2) through the locking hole (9).