CN220243447U - Electric bicycle frame - Google Patents
Electric bicycle frame Download PDFInfo
- Publication number
- CN220243447U CN220243447U CN202322036428.9U CN202322036428U CN220243447U CN 220243447 U CN220243447 U CN 220243447U CN 202322036428 U CN202322036428 U CN 202322036428U CN 220243447 U CN220243447 U CN 220243447U
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- China
- Prior art keywords
- fork
- electric bicycle
- fixed
- bicycle frame
- pipe
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- 238000013016 damping Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The utility model discloses an electric bicycle frame which comprises a bicycle beam, a head pipe, a middle pipe and a rear fork, wherein the head pipe is fixed at the front end of the bicycle beam; the sliding tube is obliquely arranged, and the lower end of the sliding tube is fixedly connected to the side wall of the folder and the upper side surface of the rear arm; the lower end of the middle pipe is fixed on the upper side surface of the slide pipe; the five-way pipe is fixed on the rear arm; the battery frame is provided with a bottom plate and a side plate, the bottom plate is fixed at the tail part of the rear arm, the lower end of the side plate is fixed at the bottom plate, and the battery box is arranged in an enclosed space formed by the bottom plate, the side plate and the slide tube; the rear fork is provided with a rear lower fork and a rear upper fork, the front end of the rear lower fork is hinged to the rear lower end of the battery frame, the tail end of the rear lower fork is connected with a fork piece, and the front end of the rear upper fork is fixed on the middle tube; the two ends of the elastic device are respectively hinged with the tail end of the rear upper fork and the fork piece. The whole bicycle frame has low gravity center, concentration, excellent damping performance, simple whole body and beautiful appearance.
Description
Technical Field
The utility model relates to the field of vehicles, in particular to an electric bicycle frame.
Background
The population of China is numerous, and the transportation trip is a big problem. The bicycle and the electric bicycle have the trend of increasing popularity because of convenient travel and small occupied area, and can effectively reduce the pollution of fuel oil to the atmosphere.
In order to ensure long-distance endurance and to facilitate battery charging, maintenance or storage, more electric bicycle batteries are designed in a detachable manner. For example, chinese patent CN202220681637.1 discloses a "light folding electric bicycle", in which a battery pack is disposed on a rear bracket, the battery pack is integrally located behind a saddle and has a high center of gravity, which is not beneficial to riding stability of the electric bicycle; in addition, the battery is horizontally placed, and the regular taking and placing and the fixed mounting are slightly troublesome. For electric bicycles, the independent battery box is large and heavy, so that the battery box occupies a relatively high weight of the whole bicycle, and the placement position and mode of the battery box greatly influence the gravity center of the electric bicycle and riding safety.
Disclosure of Invention
The utility model aims to provide an electric bicycle frame which has low and concentrated gravity center, excellent damping effect, compact structure and easy manufacture.
The utility model is realized in the following way: the electric bicycle frame comprises a bicycle beam, a head pipe, a middle pipe and a rear fork, wherein the head pipe is fixed at the front end of the bicycle beam, the bicycle beam comprises a front arm and a rear arm, and a folder is arranged between the front arm and the rear arm; the sliding tube is obliquely arranged, and the lower end of the sliding tube is fixedly connected to the side wall of the folder and the upper side surface of the rear arm; the lower end of the middle pipe is fixed on the upper side surface of the slide pipe; the five-way pipe is fixed on the rear arm; the battery frame is provided with a bottom plate and a side plate, the bottom plate is fixed at the tail part of the rear arm, the lower end of the side plate is fixed at the bottom plate, and the battery box is arranged in an enclosed space formed by the bottom plate, the side plate and the slide tube; the rear fork is provided with a rear lower fork and a rear upper fork, the front end of the rear lower fork is hinged to the rear lower end of the battery frame, the tail end of the rear lower fork is connected with a fork piece, and the front end of the rear upper fork is fixed on the middle tube; the two ends of the elastic device are respectively hinged with the tail end of the rear upper fork and the fork piece.
The front side of the battery box is provided with a linear groove, and the radian of the inner surface of the groove is matched with that of the outer surface of the rear side of the slide tube.
The lower extreme is established the base behind the battery frame, and the back lower fork front end hinge connection in the base.
The upper side of the reinforcing rib is fixedly connected with the bottom plate, and the front side of the reinforcing rib is fixedly connected with the five-way pipe.
A baffle is transversely arranged between the tail ends of the rear upper forks, and the outer side of the upper end of the side plate of the battery frame is fixed on the baffle.
And a cover plate is transversely arranged between the front ends of the rear upper forks, and the middle part of the cover plate is connected with the top end of the slide tube.
The elastic device is any one of a damping spring, an air pressure damper and a hydraulic damper.
The folder has a folding joint and an eccentric quick-release handle.
The front side of the middle pipe is provided with a controller box, and an electric bicycle controller is arranged in the controller box.
According to the electric bicycle frame, the battery frame bottom plate is fixed at the tail part of the rear arm of the bicycle beam, the sliding tube is obliquely arranged, the lower end of the sliding tube is fixed at the upper side surface of the rear arm of the bicycle beam, after the battery box is placed, the larger part of the battery box is positioned below the middle tube, the battery box bottom plate is close to the five-way tube, the whole gravity center of the battery box is lower, in addition, the gravity center is concentrated at the middle position of the bicycle frame when the battery box and the bicycle frame are taken as a whole, a stable riding effect can be obtained, and the phenomenon of head warping when jolting in riding is effectively avoided; the front side of the battery box is provided with the linear groove, and the radian of the inner surface of the groove is matched with the radian of the outer surface of the rear side of the slide tube, so that the battery box can accurately reach the position along the slide tube by self gravity when being put in, and the convenience is improved; the rear lower fork is hinged to the rear lower end of the battery frame, two ends of the elastic device are respectively hinged to the tail end of the rear upper fork and the fork piece, and the whole space layout of the frame is reasonable and the structure is compact while the shock absorption effect is improved.
Drawings
FIG. 1 is a schematic front view of an electric bicycle frame of the present utility model;
FIG. 2 is a rear, upper view partially schematic illustration of an electric bicycle frame of the present utility model;
FIG. 3 is a partial schematic view of a bottom side view of the electric bicycle frame of the present utility model;
fig. 4 is a schematic perspective view of the electric bicycle frame of the present utility model.
Detailed Description
The electric bicycle frame of the utility model is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the electric bicycle frame comprises a bicycle beam 1 and a head pipe 2, wherein the head pipe is fixedly connected to the front end of the bicycle beam; the vehicle beam 1 comprises a front arm 11 and a rear arm 12, wherein a folder 13 is arranged between the front arm and the rear arm; the sliding tube 3 is obliquely arranged, the arrangement direction of the sliding tube is lower near one end of the beam, the other end of the sliding tube is higher and extends to the rear side, and the lower end of the sliding tube is connected to the side wall of the folder 13 and the upper side surface of the rear arm 12; the lower end of the middle pipe 4 is fixed on the upper side surface of the slide pipe, and the upper end of the middle pipe is used for installing a saddle; the five-way pipe 5 is fixed on the rear arm; the battery frame 6 is provided with a bottom plate 61 and a side plate 62, the bottom plate is fixed at the tail part of the rear arm, the lower end of the side plate is fixed at the bottom plate, the side plate is arranged in a vertical direction with the bottom plate, and the battery box 7 is arranged in an enclosed space formed by the bottom plate, the side plate and the slide tube; the rear fork 8 is provided with a rear lower fork 81 and a rear upper fork 82, the front end of the rear lower fork is hinged to the rear lower end of the battery frame, the tail end of the rear lower fork is connected with a fork piece 83, and the front end of the rear upper fork is fixed on the middle tube; the two ends of the elastic device 84 are respectively hinged to the tail end of the rear upper fork and the fork piece.
As shown in fig. 2, the front side of the battery box 7 is provided with a linear groove 71, and the radian of the inner surface of the groove is matched with that of the outer surface of the rear side of the slide tube 3. When the user puts into the battery box 6, this battery box trailing flank laminating curb plate 62's inside wall, the recess 71 laminating slide tube 3 rear side surface of battery box leading flank makes the putting into or take out of battery box more smooth and easy like this, also makes electric bicycle can not rock about the battery box in riding simultaneously, has promoted stability and security.
As shown in fig. 4, a base 63 is provided at the rear lower end of the battery frame, and the front end of the rear lower fork is hinged to the base.
The upper side of the reinforcing rib 64 is fixedly connected to the bottom plate 61, and the front side of the reinforcing rib is fixedly connected to the five-way pipe 5. Further, the reinforcing ribs are symmetrically arranged on the left and right, so that the structural stability of the battery frame, the vehicle beam and the five-way pipe is improved.
As shown in fig. 2, a baffle 65 is transversely disposed between the tail ends of the rear upper forks, and the outer sides of the upper ends of the side plates of the battery frame are fixed on the baffle, so as to have a better bearing effect on the battery frame.
A cover plate 31 is transversely arranged between the front ends of the rear upper forks, and the middle part of the cover plate is connected with the top end of the slide tube. The cover plate further defines the degree of freedom of the slide top and allows the slide top to fork into a stable configuration with the rear upper fork.
The elastic means 84 is any one of a damper spring, a pneumatic damper, and a hydraulic damper.
The front side of the middle pipe is provided with a controller box 9, and an electric bicycle controller is arranged in the controller box. The controller is connected to the battery case and the handle bar end control device through wires, respectively.
Further, the folder 13 is provided with a folding joint and an eccentric quick-release handle, so that the front arm and the rear arm of the vehicle beam can be folded when needed to reduce the occupied area, and the vehicle beam is convenient to store. The folder is a locking device capable of being opened or closed quickly, and no tool is needed, so that the folder on the folding vehicle belongs to the prior art and is not described in detail herein.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. The utility model provides an electric bicycle frame, includes roof beam (1), head pipe (2), well pipe (4) and rear fork (8), the head pipe is fixed in roof beam front end, its characterized in that: the vehicle beam comprises a front arm (11) and a rear arm (12), and a folder (13) is arranged between the front arm and the rear arm; the sliding tube (3) is obliquely arranged, and the lower end of the sliding tube is fixedly connected with the side wall of the folder and the upper side surface of the rear arm; the lower end of the middle pipe is fixed on the upper side surface of the slide pipe; the five-way pipe (5) is fixed on the rear arm; the battery frame (6) is provided with a bottom plate (61) and a side plate (62), the bottom plate is fixed at the tail part of the rear arm, the lower end of the side plate is fixed at the bottom plate, and a battery box (7) is arranged in an enclosed space formed by the bottom plate, the side plate and the slide tube; the rear fork is provided with a rear lower fork (81) and a rear upper fork (82), the front end of the rear lower fork is hinged to the rear lower end of the battery frame, the tail end of the rear lower fork is connected with a fork piece (83), and the front end of the rear upper fork is fixed on the middle tube; two ends of the elastic device (84) are respectively hinged with the tail end of the rear upper fork and the fork piece.
2. The electric bicycle frame according to claim 1, wherein: the front side of the battery box is provided with a linear groove (71), and the radian of the inner surface of the groove is matched with that of the outer surface of the rear side of the slide tube.
3. The electric bicycle frame according to claim 1 or 2, characterized in that: the lower back end of the battery frame is provided with a base (63), and the front end of the rear lower fork is hinged with the base.
4. The electric bicycle frame according to claim 1 or 2, characterized in that: the upper side of the reinforcing rib (64) is fixedly connected with the bottom plate, and the front side of the reinforcing rib is fixedly connected with the five-way pipe.
5. The electric bicycle frame according to claim 1 or 2, characterized in that: a baffle (65) is transversely arranged between the tail ends of the rear upper forks, and the outer side of the upper end of the side plate of the battery frame is fixed on the baffle.
6. The electric bicycle frame according to claim 1 or 2, characterized in that: a cover plate (31) is transversely arranged between the front ends of the rear upper forks, and the middle part of the cover plate is connected with the top end of the slide tube.
7. The electric bicycle frame according to claim 1 or 2, characterized in that: the elastic device is any one of a damping spring, an air pressure damper and a hydraulic damper.
8. The electric bicycle frame according to claim 1 or 2, characterized in that: the folder has a folding joint and an eccentric quick-release handle.
9. The electric bicycle frame according to claim 1 or 2, characterized in that: the front side of the middle pipe is provided with a controller box (9), and an electric bicycle controller is arranged in the controller box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036428.9U CN220243447U (en) | 2023-07-27 | 2023-07-27 | Electric bicycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036428.9U CN220243447U (en) | 2023-07-27 | 2023-07-27 | Electric bicycle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220243447U true CN220243447U (en) | 2023-12-26 |
Family
ID=89265673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322036428.9U Active CN220243447U (en) | 2023-07-27 | 2023-07-27 | Electric bicycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220243447U (en) |
-
2023
- 2023-07-27 CN CN202322036428.9U patent/CN220243447U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |