CN220430401U - Adjustable electric bicycle trailer braking system - Google Patents
Adjustable electric bicycle trailer braking system Download PDFInfo
- Publication number
- CN220430401U CN220430401U CN202322129158.6U CN202322129158U CN220430401U CN 220430401 U CN220430401 U CN 220430401U CN 202322129158 U CN202322129158 U CN 202322129158U CN 220430401 U CN220430401 U CN 220430401U
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- electric bicycle
- trailer
- rear end
- spring
- shell
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- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model discloses an adjustable electric bicycle trailer braking system, which comprises a shell, wherein a spring damper is fixed at the rear end of the shell, an oil pressure braking device positioned in front of the spring damper is fixed in the shell, a universal joint is fixed at the front end of the shell, and the oil pressure braking device is connected with a brake caliper arranged on a trailer wheel through an oil pipe; the spring damper consists of an end cover, a spring, a central shaft and a fixed sleeve, the spring is sleeved outside the central shaft, a through hole for the front end of the central shaft to extend out is formed in the center of the end cover, the oil pressure brake device comprises a piston and a piston rod connected with the piston, the piston rod extends forwards and backwards, and the rear end of the piston rod is connected with the front end of the central shaft. When the electric bicycle brakes, the trailer continues to move forwards through inertia, the trailer pushes the center shaft to move forwards, the spring is compressed, and the oil pressure braking device is triggered after the center shaft moves forwards, so that a brake clamp arranged on wheels of the trailer works to generate braking force, and the trailer is braked.
Description
Technical Field
The utility model relates to a trailer braking system, in particular to an adjustable electric bicycle trailer braking system.
Background
When the electric bicycle brakes under the condition of carrying pets or carrying goods, because the rear trailer is not provided with a braking device, the rear trailer can cause forward shock due to inertia, and the trailer is easy to collide with the front electric bicycle, so that potential safety hazards exist. Therefore, how to develop a trailer braking system of an electric bicycle to prevent the trailer from colliding with the front electric bicycle when the electric bicycle is braked is a direction to be researched by workers in the field.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to: an adjustable electric bicycle trailer brake system is provided.
The technical scheme of the utility model is as follows: the adjustable electric bicycle trailer braking system comprises a shell, wherein a spring damper is fixed at the rear end of the shell, an oil pressure braking device positioned in front of the spring damper is fixed in the shell, a universal joint is fixed at the front end of the shell, and the oil pressure braking device is connected with a brake caliper arranged on a trailer wheel through an oil pipe;
the spring damper consists of an end cover, a spring, a central shaft and a fixed sleeve, the spring is sleeved outside the central shaft, a through hole for the front end of the central shaft to extend out is formed in the center of the end cover, the oil pressure brake device comprises a piston and a piston rod connected with the piston, the piston rod extends forwards and backwards, and the rear end of the piston rod is connected with the front end of the central shaft.
Further, the fixed sleeve is sleeved outside the middle shaft, the middle shaft extends forwards and backwards, and the rear end of the middle shaft penetrates out of the rear end of the fixed sleeve.
Further, the middle part of the middle shaft is provided with a first boss accommodated in the fixed sleeve.
Further, the rear end of the fixed sleeve is provided with a through hole which is penetrated from front to back, and the through hole is used for the rear end of the middle shaft to penetrate out.
Further, the end cover is fixed at the front end of the fixed sleeve, and the spring is clamped between the end cover and the first boss in a front-back extending mode.
Further, the front end of the center shaft is provided with a jack with a forward opening, and the rear end of the piston rod is inserted into the jack.
Further, the rear end of the middle shaft is connected to the front end of the trailer through bolts, and the front end of the universal joint is fixedly connected to the tail of the electric bicycle.
The adjustable electric bicycle trailer braking system provided by the utility model has the beneficial effects that: when the electric bicycle brakes, the trailer continues to move forwards through inertia, the trailer pushes the center shaft to move forwards, the spring is compressed, and the oil pressure braking device is triggered after the center shaft moves forwards, so that a brake clamp arranged on wheels of the trailer works to generate braking force, and the trailer is braked.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
FIG. 4 is a schematic structural view of the fixing sleeve of the present utility model;
fig. 5 is a schematic illustration of the connection of the present utility model to a trailer.
The figure shows: 1-shell, 11-shell, 12-upper cover, 13-lower cover, 2-spring damper, 21-end cover, 211-through hole, 212-second boss, 22-spring, 23-center shaft, 231-first boss, 232-jack, 24-fixed sleeve, 241-perforation, 3-oil pressure brake device, 31-piston, 32-piston rod, 4-universal joint, 5-oil pipe, 6-brake caliper and 7-trailer.
Detailed Description
For a more visual and complete understanding of the technical solution of the utility model, non-limiting features will now be described with reference to the accompanying drawings, in which:
as shown in fig. 1-5, the adjustable electric bicycle trailer braking system comprises a shell 1, wherein a spring damper 2 is fixed at the rear end of the shell 1, an oil pressure braking device 3 positioned in front of the spring damper 2 is fixed in the shell 1, a universal joint 4 is fixed at the front end of the shell 1, and the oil pressure braking device 3 is connected with a brake caliper 6 arranged on wheels of a trailer 7 through an oil pipe 5; the spring damper 2 consists of an end cover 21, a spring 22, a center shaft 23 and a fixed sleeve 24, wherein the spring 22 is sleeved outside the center shaft 23, a through hole 211 for extending out of the front end of the center shaft 23 is formed in the center of the end cover 21, the oil pressure brake device 3 comprises a piston 31 and a piston rod 32 connected with the piston 31, the piston rod 32 extends forwards and backwards, and the rear end of the piston rod 32 is connected with the front end of the center shaft 23.
As shown in fig. 3, the fixing sleeve 24 is sleeved outside the middle shaft 23, the middle shaft 23 extends forwards and backwards, and the rear end of the middle shaft extends out from the rear end of the fixing sleeve 24. As shown in fig. 4, the rear end of the fixing sleeve 24 has a through hole 241 penetrating forward and backward, and the through hole 241 allows the rear end of the bottom bracket 23 to pass out.
As shown in fig. 2 and 3, the middle part of the middle shaft 23 has a first boss 231 accommodated in the fixing sleeve 24. The end cover 21 is fixed at the front end of the fixed sleeve 24 in a threaded connection manner, and the spring 22 is clamped between the end cover 21 and the first boss 231 in a manner of extending back and forth. The end cap 21 has a second boss 212 therein, and the rear end and the front end of the spring 22 are respectively fitted over the first boss 231 and the second boss 212.
As shown in fig. 3, the front end of the center shaft 23 has a front-opening insertion hole 232, and the rear end of the piston rod 32 is inserted into the insertion hole 232. The rear end of the piston rod 32 is clearance fit with the socket 232. When the center shaft 23 moves forwards, the center shaft 23 can drive the piston rod 32 to move forwards, the piston 31 pushes oil in the oil pressure braking device 3, the oil pressure is communicated with the brake caliper 6 from the oil pipe 5, and the brake caliper 6 clamps a disc of the trailer 7, so that a braking effect is achieved.
The housing 1 is composed of a shell 11, an upper cover 12 and a lower cover 13. The fixing sleeve 24 and the hydraulic brake device 3 are fixed on the shell 11 through screw connection.
The rear end of the center shaft 23 is connected with the front end of the trailer 7 through bolts, and the front end of the universal joint 4 is fixedly connected with the tail of the electric bicycle. When the electric bicycle brakes, the trailer 7 continues to move forwards through inertia, the trailer 7 pushes the center shaft 23 to move forwards, the springs 22 are compressed, and the oil pressure braking device 3 is triggered after the center shaft 23 moves forwards, so that the brake caliper 6 arranged on wheels of the trailer 7 works to generate braking force, and the trailer 7 is braked. By changing the spring 22 with a different compression amount, the compression amount of the spring damper 2 can be adjusted, thereby adjusting the braking force.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the scope of the utility model, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. Adjustable electric bicycle trailer braking system, including the shell, its characterized in that: the rear end of the shell is fixedly provided with a spring damper, an oil pressure braking device positioned in front of the spring damper is fixed in the shell, the front end of the shell is fixedly provided with a universal joint, and the oil pressure braking device is connected with a brake caliper arranged on a trailer wheel through an oil pipe;
the spring damper consists of an end cover, a spring, a central shaft and a fixed sleeve, the spring is sleeved outside the central shaft, a through hole for the front end of the central shaft to extend out is formed in the center of the end cover, the oil pressure brake device comprises a piston and a piston rod connected with the piston, the piston rod extends forwards and backwards, and the rear end of the piston rod is connected with the front end of the central shaft.
2. The adjustable electric bicycle trailer brake system of claim 1, wherein: the fixed sleeve is sleeved outside the middle shaft, the middle shaft extends forwards and backwards, and the rear end of the middle shaft penetrates out of the rear end of the fixed sleeve.
3. The adjustable electric bicycle trailer brake system of claim 2, wherein: the middle part of the middle shaft is provided with a first boss accommodated in the fixed sleeve.
4. The adjustable electric bicycle trailer brake system of claim 2, wherein: the rear end of the fixed sleeve is provided with a through hole which is penetrated from front to back, and the through hole is used for the rear end of the middle shaft to penetrate out.
5. An adjustable electric bicycle trailer brake system as set forth in claim 3, wherein: the end cover is fixed at the fixed cover front end, and the spring extends the ground card between end cover and first boss back and forth.
6. The adjustable electric bicycle trailer brake system of claim 1, wherein: the front end of the center shaft is provided with a jack with a forward opening, and the rear end of the piston rod is inserted into the jack.
7. The adjustable electric bicycle trailer brake system of claim 1, wherein: the rear end of the middle shaft is connected with the front end of the trailer through a bolt, and the front end of the universal joint is fixedly connected with the tail of the electric bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129158.6U CN220430401U (en) | 2023-08-09 | 2023-08-09 | Adjustable electric bicycle trailer braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129158.6U CN220430401U (en) | 2023-08-09 | 2023-08-09 | Adjustable electric bicycle trailer braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220430401U true CN220430401U (en) | 2024-02-02 |
Family
ID=89702697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322129158.6U Active CN220430401U (en) | 2023-08-09 | 2023-08-09 | Adjustable electric bicycle trailer braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220430401U (en) |
-
2023
- 2023-08-09 CN CN202322129158.6U patent/CN220430401U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |