CN220996645U - Shaft transmission electric bicycle - Google Patents
Shaft transmission electric bicycle Download PDFInfo
- Publication number
- CN220996645U CN220996645U CN202322810882.5U CN202322810882U CN220996645U CN 220996645 U CN220996645 U CN 220996645U CN 202322810882 U CN202322810882 U CN 202322810882U CN 220996645 U CN220996645 U CN 220996645U
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- shaft
- connecting seat
- slot
- motor
- down tube
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 5
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Automatic Cycles, And Cycles In General (AREA)
Abstract
The utility model discloses a shaft driven electric bicycle, which comprises a vertical pipe, a rear upper fork, a rear lower fork, a shaft driving device, a fixed shaft, a rear wheel with a motor and a connecting seat, wherein the rear upper fork comprises a first inclined pipe and a second inclined pipe, the rear lower fork comprises a first transverse pipe, the bottom of the vertical pipe is welded with a five-way pipe, the tops of the first inclined pipe and the second inclined pipe are welded and fixed with the top of the vertical pipe, the front part of the first transverse pipe is welded and fixed with the five-way pipe, the bottom of the first inclined pipe and the rear part of the first transverse pipe which are positioned on the same side are welded and fixed with each other, a first slot is formed at the connecting part of the two parts, the front part of the shaft driving device and the five-way pipe are detachably connected, the rear part of the shaft driving device and the bottom of the second inclined pipe are detachably connected with the connecting seat, the two ends of the fixed shaft are detachably arranged in the first slot and the second slot respectively, the motor is rotationally arranged on the fixed shaft, and one end of the motor close to the second slot is meshed and driven by the shaft driving device. The utility model is convenient for the installation and the disassembly of the motor and the shaft transmission device through the connecting seat, and simplifies the operation process.
Description
Technical Field
The utility model relates to the technical field of electric bicycles, in particular to a shaft transmission electric bicycle.
Background
The existing shaft transmission electric bicycle needs to realize transmission by positioning and assembling a frame, a motor and a shaft transmission system, namely, the motor drives a rear wheel at the rear part of the frame to rotate, and pedals also drive the rear wheel at the rear part of the frame through the shaft transmission system to realize booster riding. But the frame comprises a vertical pipe, a rear upper fork and a rear lower fork, the rear upper fork and the rear lower fork are required to be fixed with a motor and a shaft transmission system, the motor and the shaft transmission system are meshed for transmission, the whole assembly and the disassembly are not easy, and the operation is complicated.
Disclosure of utility model
The utility model aims to provide an easy-to-assemble and disassemble shaft-driven electric bicycle.
The object of the present utility model is thus achieved.
The utility model provides a shaft drive electric bicycle, including the riser, the back is gone up the fork, the back is gone down fork, shaft transmission, fixed axle and take the rear wheel of motor, the back is gone up the fork and is included first down pipe and second down pipe, the back is gone down the fork and is included first violently pipe, riser bottom welding has the five-way, first down pipe and second down pipe top all with riser top welded fastening, first violently pipe front portion and five-way welded fastening, be in first down pipe bottom and first violently pipe rear portion welded fastening of same one side, both connecting portions are formed with first fluting, still include a connecting seat, shaft transmission front portion and five-way releasable connection, shaft transmission constitutes the second violently pipe of back down fork, shaft transmission rear portion and second down pipe bottom all are connected with the connecting seat releasable connection, the connecting seat is equipped with the second fluting, the fixed axle both ends are respectively releasable mounting in first fluting and second fluting, the motor rotates and sets up on the fixed axle, motor is close to second fluting one end and shaft transmission meshing transmission. The utility model is convenient for the installation and the disassembly of the motor and the shaft transmission device through the connecting seat, and simplifies the operation process.
The above technical solution can be further perfected as follows.
More specifically, the connecting seat is provided with a positioning groove corresponding to the second slot, a positioning ring is arranged in the positioning groove, and when the fixed shaft sleeve penetrates through the positioning ring, one end of the motor, which is close to the second slot, is provided with a driven gear, and the driven gear is meshed with an output end gear of the shaft transmission device for transmission. The positioning groove and the positioning ring enable the fixed shaft to be positioned at the preset position of the second groove, the motor and the shaft transmission device are easy to position and mesh, and the disassembly operation is further simplified.
More specifically, the second grooved opening is arranged at the rear part of the connecting seat, the outer side of the connecting seat and the front part of the connecting seat are concaved inwards to form the positioning groove, the positioning groove is a circular groove, and the circular diameter is larger than the second grooved width. The positioning groove is easy to process, and is convenient for the installation of the fixed shaft and the positioning ring, so that the sleeve penetrating of the fixed shaft and the positioning ring is easy to implement.
More specifically, the thickness of the positioning ring is less than or equal to the depth of the positioning groove. The positioning ring does not protrude out of the positioning groove, so that the fixed shaft and the connecting seat are prevented from being influenced to be locked through the nut.
More specifically, the output gear of the shaft transmission device protrudes out of the rear part of the shaft transmission device, the connecting seat extends out of the first protection cover corresponding to the rear part of the shaft transmission device, the connecting seat and the rear part of the shaft transmission device are fixedly connected through the connecting piece to form the detachable connection, the output gear of the shaft transmission device is arranged in the first protection cover, and the first protection cover is opened towards one side of the motor. The first protective cover is convenient for positioning and assembling the shaft transmission device and the connecting seat and shields the output end gear of the shaft transmission device.
More specifically, the connecting seat corresponds motor one side and is equipped with the second safety cover, and the second safety cover is opened towards connecting seat rear portion direction, in the driven gear second safety cover, is equipped with the intercommunication position between second safety cover and the first safety cover, driven gear and shaft transmission's output gear in the inside engaged at the intercommunication position. The second protection cover does not obstruct the assembly and disassembly of the fixed shaft, the second protection cover and the first protection cover are matched to shield the meshing part of the driven gear and the gear at the output end of the shaft transmission device, foreign matters are prevented from entering, and safety is improved.
More specifically, the connecting seat top is equipped with the engaging lug, and the engaging lug is equipped with first locating hole, and corresponding second inclined tube bottom is equipped with the second locating hole, and second locating hole and first locating hole axle center align and pass through bolted connection fixed constitution detachable connection. The connecting seat and the second inclined tube are easy and simple to assemble and disassemble.
The utility model has the following beneficial effects.
(1) The utility model is convenient for the installation and the disassembly of the motor and the shaft transmission device through the connecting seat, and simplifies the operation process. The positioning groove and the positioning ring enable the fixed shaft to be positioned at the preset position of the second groove, the motor and the shaft transmission device are easy to position and mesh, and the disassembly operation is further simplified.
(2) The first protective cover is convenient for positioning and assembling the shaft transmission device and the connecting seat and shields the output end gear of the shaft transmission device. The second protection cover does not obstruct the assembly and disassembly of the fixed shaft, and the second protection cover and the first protection cover are matched to shield the meshing part of the driven gear and the gear at the output end of the shaft transmission device, so that the safety is improved.
Drawings
Fig. 1 is a schematic diagram of an assembly structure of a first embodiment.
Fig. 2 is an exploded view of the first embodiment.
Fig. 3 is a schematic cross-sectional structure of the first embodiment.
Fig. 4 is a schematic structural view (medial direction) of the connecting seat in the first embodiment.
Fig. 5 is a schematic structural view (lateral direction) of the connecting seat in the first embodiment.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-5, an electric bicycle with shaft transmission includes a stand pipe 1, a rear upper fork 2, a rear lower fork 3, a shaft transmission device 4, a fixed shaft 5, a connecting seat 6 and a motor 7, wherein the motor 7 is fixed at the center of a rear wheel 71. The rear upper fork 2 comprises a first inclined tube 21 and a second inclined tube 22, the rear lower fork 3 comprises a first transverse tube 31, the bottom of the vertical tube 1 is connected with a five-way pipe 8, the tops of the first inclined tube 21 and the second inclined tube 22 are welded and fixed with the top of the vertical tube 1, the front part of the first transverse tube 31 is welded and fixed with the five-way pipe 8, the bottom of the first inclined tube 21 and the rear part of the first transverse tube 31 on the same side are welded and fixed, and a first slot 23 is formed at the connecting part of the two.
The front part of the shaft transmission device 4 is detachably connected with the five-way pipe 8, the shaft transmission device 4 forms a second transverse pipe of the rear lower fork 3, and the rear part of the shaft transmission device 4 and the bottom of the second inclined pipe 22 are detachably connected with the connecting seat 6. Specifically, the top of the connecting seat 6 is provided with a connecting lug 61, the connecting lug 61 is provided with a first positioning hole 62, the bottom of the corresponding second inclined tube 22 is provided with a second positioning hole 24, and the axes of the second positioning hole 24 and the first positioning hole 62 are aligned and fixedly connected through bolts to form the detachable connection. The output gear 41 of the shaft transmission 4 protrudes out of the rear of the shaft transmission 4.
The connecting seat 6 extends out of the first protective cover 63 corresponding to the rear part of the shaft transmission device 4, the connecting seat 6 and the rear part of the shaft transmission device 4 are fixedly connected through a connecting piece to form the detachable connection, the output end gear 41 of the shaft transmission device 4 is arranged in the first protective cover 63, and the first protective cover 63 is opened towards one side of the motor 7. The connecting seat 6 is equipped with the second safety cover 64 corresponding to motor 7 one side, and second safety cover 64 opens towards connecting seat 6 rear portion direction, and driven gear 70 is equipped with the intercommunication position 65 in the second safety cover 64 between second safety cover 64 and the first safety cover 63. The connection is typically a bolt.
The connecting seat 6 is provided with a second slot 66, the connecting seat 6 is provided with a positioning groove 67 corresponding to the second slot 66, specifically, an opening of the second slot 66 is arranged at the rear part of the connecting seat 6, the outer side of the connecting seat 6 and the front part of the connecting seat 6 are inwards concave to form the positioning groove 67, the positioning groove 67 is a circular groove, and the circular diameter is larger than the width of the second slot 66. The positioning groove 67 is internally provided with a positioning ring 9, when the fixed shaft 5 is sleeved in the positioning ring 9, one end of the motor 7, which is close to the second slot 66, is provided with a driven gear 70, and the positioning ring 9 enables the driven gear 70 and the output end gear 41 of the shaft transmission device 4 to be just meshed in the communicating part 65. Preferably, the retaining ring 9 has a thickness less than or equal to the depth of the retaining groove 67.
According to the utility model, the connecting seat 6, the motor 7 and the shaft transmission device 4 are positioned and assembled with the corresponding rear upper fork 2 or rear lower fork 3 easily, and the disassembly is simple and easy.
Claims (7)
1. The utility model provides a shaft drive electric bicycle, including riser (1), back upper fork (2), back lower fork (3), shaft drive (4), fixed axle (5) and rear wheel (71) with motor (7), back upper fork (2) are including first down tube (21) and second down tube (22), back lower fork (3) are including first down tube (31), riser (1) bottom is connected with five-way (8), first down tube (21) and second down tube (22) top all with riser (1) top welded fastening, first down tube (31) front portion and five-way (8) welded fastening, be in first down tube (21) bottom and first down tube (31) rear portion welded fastening of same side, both junction is formed with first fluting (23) between them, characterized by, shaft drive (4) front portion and five-way (8) are connected in a detachable way, shaft drive (4) constitute the second down tube of riser (3), shaft drive (4) rear portion and second down tube (22) are equipped with the fixed axle (6) bottom and are connected in a detachable way (66) and are connected in fixed axle (6) bottom and second fluting (66) are provided with respectively, the fixed axle (6) are connected in a detachable way respectively, one end of the motor (7) close to the second slot (66) is meshed with the shaft transmission device (4) for transmission.
2. The shaft-driven electric bicycle according to claim 1, characterized in that the connecting seat (6) is provided with a positioning groove (67) corresponding to the second slot (66), a positioning ring (9) is arranged in the positioning groove (67), when the fixed shaft (5) is sleeved in the positioning ring (9), one end of the motor (7) close to the second slot (66) is provided with a driven gear (70), and the driven gear (70) is meshed with an output end gear (41) of the shaft transmission device (4).
3. The shaft-driven electric bicycle of claim 2, characterized in that the opening of the second slot (66) is arranged at the rear part of the connecting seat (6), the positioning slot (67) is concaved inwards at the outer side of the connecting seat (6) and the front part of the connecting seat (6), the positioning slot (67) is a circular slot, and the circular diameter is larger than the width of the second slot (66).
4. The shaft driven electric bicycle according to claim 2, characterized in that the thickness of the positioning ring (9) is smaller than or equal to the depth of the positioning groove (67).
5. The shaft-driven electric bicycle according to claim 2, characterized in that the output end gear (41) of the shaft driving device (4) protrudes out of the rear part of the shaft driving device (4), the connecting seat (6) extends out of the first protection cover (63) corresponding to the rear part of the shaft driving device (4), the connecting seat (6) and the rear part of the shaft driving device (4) are fixedly connected through connecting pieces to form the detachable connection, the output end gear (41) of the shaft driving device (4) is arranged in the first protection cover (63), and the first protection cover (63) is opened towards one side of the motor (7).
6. The shaft-driven electric bicycle according to claim 5, wherein a second protection cover (64) is arranged on one side of the connecting seat (6) corresponding to the motor (7), the second protection cover (64) is opened towards the rear direction of the connecting seat (6), the driven gear (70) is arranged in the second protection cover (64), a communication part (65) is arranged between the second protection cover (64) and the first protection cover (63), and the driven gear (70) and an output end gear (41) of the shaft transmission device (4) are meshed in the communication part (65).
7. The shaft-driven electric bicycle according to claim 1, wherein the top of the connecting seat (6) is provided with a connecting lug (61), the connecting lug (61) is provided with a first positioning hole (62), the bottom of the corresponding second inclined tube (22) is provided with a second positioning hole (24), and the axes of the second positioning hole (24) and the first positioning hole (62) are aligned and fixedly connected through bolts to form the detachable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322810882.5U CN220996645U (en) | 2023-10-19 | 2023-10-19 | Shaft transmission electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322810882.5U CN220996645U (en) | 2023-10-19 | 2023-10-19 | Shaft transmission electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220996645U true CN220996645U (en) | 2024-05-24 |
Family
ID=91088608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322810882.5U Active CN220996645U (en) | 2023-10-19 | 2023-10-19 | Shaft transmission electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220996645U (en) |
-
2023
- 2023-10-19 CN CN202322810882.5U patent/CN220996645U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |