CN109018152B - Rear bottom fork damping system of electric power-assisted bicycle - Google Patents
Rear bottom fork damping system of electric power-assisted bicycle Download PDFInfo
- Publication number
- CN109018152B CN109018152B CN201810816991.9A CN201810816991A CN109018152B CN 109018152 B CN109018152 B CN 109018152B CN 201810816991 A CN201810816991 A CN 201810816991A CN 109018152 B CN109018152 B CN 109018152B
- Authority
- CN
- China
- Prior art keywords
- bottom fork
- bearing
- rear bottom
- shock absorber
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000013016 damping Methods 0.000 title abstract description 5
- 230000035939 shock Effects 0.000 claims description 45
- 239000006096 absorbing agent Substances 0.000 claims description 37
- 230000000116 mitigating effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
Abstract
The invention discloses a rear bottom fork damping system of an electric power-assisted bicycle, which is characterized in that: comprises a bicycle frame provided with a five-way main shaft; the rear bottom fork is characterized by further comprising a rear bottom fork, wherein the rear wheel connecting end of the rear bottom fork is rotationally connected with a rear wheel of the bicycle, and the other end of the rear bottom fork is rotationally connected with the five-way main shaft; the invention has simple structure, and realizes the function of one shaft for multiple purposes by rotationally connecting the rear bottom fork on the five-way shaft; the structure is compact, and the design of a vehicle type is facilitated; the whole part is assembled, so that the welding process is reduced, the disassembly and the assembly are convenient, and the transportation is realized.
Description
Technical Field
The invention belongs to the field of bicycles, and particularly relates to a rear bottom fork damping system of an electric power-assisted bicycle.
Background
The traditional electric vehicle or the middle shaft part of the bicycle only plays roles of fixing the fluted disc and transmission.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a rear bottom fork damping system of an electric power-assisted bicycle with a multipurpose shaft.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a rear bottom fork shock absorbing system for an electric bicycle, which is characterized in that: comprises a bicycle frame provided with a five-way main shaft;
the rear bottom fork is characterized by further comprising a rear bottom fork, wherein the rear wheel connecting end of the rear bottom fork is rotationally connected with a rear wheel of the bicycle, and the other end of the rear bottom fork is rotationally connected with the five-way main shaft;
the bicycle frame is characterized by further comprising a shock absorber, wherein the lower end of the shock absorber is hinged with the rear bottom fork, and the upper end of the shock absorber is hinged with the bicycle frame.
Further, the lower end hinge part of the shock absorber is positioned between the rear wheel connecting end of the rear bottom fork and the five-way main shaft; the upper end hinge part of the shock absorber is positioned above the five-way main shaft.
Further, the upper end hinge part of the shock absorber is arranged on a saddle support frame of the bicycle frame; the axis of the shock absorber is arranged in a forward inclined mode relative to the vehicle body.
Further, the rear bottom fork comprises a shock absorber bearing rod parallel to the five-way main shaft, and the middle part of the shock absorber bearing rod is provided with the lower end hinge part;
the two ends of the shock absorber bearing rod are fixedly connected with a first front rod and a second front rod which extend towards the front direction of the vehicle body, and the tail ends of the first front rod and the second front rod are respectively connected with the five-way main shaft in a rotating way through a first bearing and a second bearing;
one end or two ends of the shock absorber bearing rod are fixedly connected with a rear rod extending towards the rear direction of the vehicle body, and the tail end of the rear rod is a rear wheel connecting end.
Further, the five-way main shaft is synchronously connected with a chain wheel tooth disc; the chain wheel tooth disc is in driving connection with the rear wheel through a chain.
Further, two ends of the five-way main shaft are respectively and rotatably connected with the five-way shaft hole on the bicycle frame through a third bearing and a fourth bearing.
Further, a first positioning shaft sleeve is arranged between the third bearing and the chain wheel tooth disc; a second positioning shaft sleeve is arranged between the first bearing and the second bearing; a third positioning shaft sleeve is arranged between the second bearing and the fourth bearing.
Furthermore, the two ends of the five-way main shaft are respectively connected with a pedal crankshaft.
The beneficial effects are that: the invention has simple structure, and realizes the function of one shaft for multiple purposes by rotationally connecting the rear bottom fork on the five-way shaft; reducing machining (if the shock absorber is independently installed, ensuring the welding or machining precision of the corresponding installation parts); the structure is compact, and the design of a vehicle type is facilitated; the whole part is assembled, so that the welding process is reduced, the disassembly and the assembly are convenient, and the transportation is realized.
Drawings
FIG. 1 is a front view of the structure of the present embodiment;
FIG. 2 is a top view of the first embodiment;
FIG. 3 is a top view of a second embodiment;
FIG. 4 is a top view of a third embodiment;
FIG. 5 is a top view of a fourth embodiment;
figures 2 to 5 show four different forms of rear fork rear bar.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
A rear bottom fork shock absorbing system of an electric power assisted bicycle as shown in fig. 1 to 5, comprising a bicycle frame 5 provided with a five-way main shaft 7; the rear bottom fork 2 is also included, the rear wheel connecting end 1 of the rear bottom fork 2 is rotationally connected with the rear wheel of the bicycle, and the other end is rotationally connected with the five-way main shaft 7; the bicycle frame is characterized by further comprising a shock absorber 4, wherein the lower end of the shock absorber 4 is hinged with the rear bottom fork 2, and the upper end of the shock absorber is hinged with the bicycle frame 5. The lower end hinge part 3 of the shock absorber 4 is positioned between the rear wheel connecting end 1 of the rear bottom fork 2 and the five-way main shaft 7; the upper end hinge part 6 of the shock absorber 4 is positioned above the five-way main shaft 7, and the rear bottom fork 2 is rotatably connected to the five-way main shaft 7; the five-way main shaft 7 has the main body function of transmission and the function of fixing the rear bottom fork 2, and is also matched with the installation of the shock absorber 4, so that the defect of poor assembly manufacturability of the rear bottom fork 2 caused by a traditional welding mode is avoided, and meanwhile, the structure can be conveniently disassembled and is more convenient in the transportation process.
The upper end hinge part 6 of the shock absorber 4 is arranged on the saddle support 5.1 of the bicycle frame 5; the axis of the shock absorber 4 is inclined forward relative to the vehicle body, as in the specific embodiment in fig. 1, the surface a of the saddle support 5.1 is subjected to a downward force F, so that the saddle support 5.1 has a tendency to lean backwards, the forward leaning shock absorber 4 supports and overcomes the tendency of the saddle support 5.1 to lean backwards, and the shock absorber 4 is elastically compressed, so as to achieve a shock absorbing effect.
Specific structural cases of one form of the rear bottom fork 2 of the present embodiment are as follows:
as shown in fig. 2, the rear bottom fork 2 includes a shock absorber carrier rod 8 parallel to the five-way main shaft 7, and the lower end hinge 3 is mounted at the middle part of the shock absorber carrier rod 8; the two ends of the shock absorber bearing rod 8 are fixedly connected with a first front rod 9.1 and a second front rod 9.2 which extend towards the front direction of the vehicle body, and the tail ends of the first front rod 9.1 and the second front rod 9.2 are respectively connected with the five-way main shaft 7 in a rotating way through a first bearing 16 and a second bearing 18; one end or two ends of the shock absorber bearing rod 8 are fixedly connected with a rear rod 10 extending towards the rear direction of the vehicle body, and the tail end of the rear rod 10 is a rear wheel connecting end 1. The five-way main shaft 7 is also synchronously connected with a chain wheel tooth disc 15; the sprocket 15 is in driving connection with the rear wheel via a chain 11. The two ends of the five-way main shaft 7 are respectively and rotatably connected with the five-way shaft hole 13 on the bicycle frame 5 through a third bearing 24 and a fourth bearing 20. A first positioning shaft sleeve 14 is arranged between the third bearing 24 and the sprocket tooth disc 15; a second positioning sleeve 17 is arranged between the first bearing 16 and the second bearing 18; a third positioning shaft sleeve 19 is arranged between the second bearing 18 and the fourth bearing 20; the two ends of the five-way main shaft 7 are respectively connected with a pedal crank shaft 12, and the tail end of the pedal crank shaft 12 is connected with a pedal.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (5)
1. The utility model provides a rear bottom fork shock mitigation system of electric bicycle which characterized in that: comprises a bicycle frame (5) provided with a five-way main shaft (7);
the bicycle rear wheel is characterized by further comprising a rear bottom fork (2), wherein the rear wheel connecting end (1) of the rear bottom fork (2) is rotationally connected with a rear wheel of the bicycle, and the other end of the rear bottom fork is rotationally connected with the five-way main shaft (7);
the bicycle comprises a bicycle frame (5), and is characterized by also comprising a shock absorber (4), wherein the lower end of the shock absorber (4) is hinged with a rear bottom fork (2), and the upper end of the shock absorber is hinged with the bicycle frame (5);
the lower end hinge part (3) of the shock absorber (4) is positioned between the rear wheel connecting end (1) of the rear bottom fork (2) and the five-way main shaft (7); the upper end hinge part (6) of the shock absorber (4) is positioned above the five-way main shaft (7);
the rear bottom fork (2) comprises a shock absorber bearing rod (8) parallel to the five-way main shaft (7), and the lower end hinge part (3) is arranged in the middle of the shock absorber bearing rod (8);
a first front rod (9.1) and a second front rod (9.2) which extend towards the front direction of the vehicle body are fixedly connected to the two ends of the shock absorber bearing rod (8), and the tail ends of the first front rod (9.1) and the second front rod (9.2) are respectively connected with the five-way main shaft (7) in a rotating way through a first bearing (16) and a second bearing (18);
one end or two ends of the shock absorber bearing rod (8) are fixedly connected with a rear rod (10) extending towards the rear direction of the vehicle body, and the tail end of the rear rod (10) is a rear wheel connecting end (1);
the upper end hinge part (6) of the shock absorber (4) is arranged on a saddle support frame (5.1) of the bicycle frame (5); the axis of the shock absorber (4) is arranged obliquely forwards relative to the vehicle body.
2. The rear bottom fork shock absorbing system of an electric bicycle as set forth in claim 1, wherein: the five-way main shaft (7) is also synchronously connected with a chain wheel tooth disc (15); the chain wheel tooth disc (15) is in driving connection with the rear wheel through a chain (11).
3. The rear bottom fork shock absorbing system of an electric bicycle as set forth in claim 2, wherein: two ends of the five-way main shaft (7) are respectively and rotatably connected with the five-way shaft hole (13) on the bicycle frame (5) through a third bearing (24) and a fourth bearing (20).
4. A rear bottom fork shock absorbing system for an electric bicycle as set forth in claim 3 wherein: a first positioning shaft sleeve (14) is arranged between the third bearing (24) and the chain wheel tooth disc (15); a second positioning shaft sleeve (17) is arranged between the first bearing (16) and the second bearing (18); a third positioning shaft sleeve (19) is arranged between the second bearing (18) and the fourth bearing (20).
5. The rear bottom fork shock absorbing system of an electric bicycle as set forth in claim 4, wherein: two ends of the five-way main shaft (7) are respectively connected with a pedal crankshaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816991.9A CN109018152B (en) | 2018-07-24 | 2018-07-24 | Rear bottom fork damping system of electric power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816991.9A CN109018152B (en) | 2018-07-24 | 2018-07-24 | Rear bottom fork damping system of electric power-assisted bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109018152A CN109018152A (en) | 2018-12-18 |
| CN109018152B true CN109018152B (en) | 2024-03-26 |
Family
ID=64644608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816991.9A Active CN109018152B (en) | 2018-07-24 | 2018-07-24 | Rear bottom fork damping system of electric power-assisted bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109018152B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5284351A (en) * | 1991-07-09 | 1994-02-08 | Fleishman Gregg R | Recumbent bicycle |
| CN2362772Y (en) * | 1997-11-10 | 2000-02-09 | 姚亮 | Shock-damping bicycle |
| US6877591B1 (en) * | 2003-11-17 | 2005-04-12 | Yung-Feng Hso | Crank of a shock absorber for a bicycle |
| RU2453463C1 (en) * | 2010-12-13 | 2012-06-20 | Глеб Юрьевич Волков | Two-wheel transport facility with shock-mounted suspension |
| CN206664836U (en) * | 2017-04-27 | 2017-11-24 | 天津杰士科技有限公司 | A kind of rear wheels of electric vehicle Extension Spring-type combined shock absorption device |
| CN108032952A (en) * | 2017-11-13 | 2018-05-15 | 慈溪浩然驱动科技有限公司 | A kind of bicycle bottom bracket and rear chain stay assembling structure |
| CN208665458U (en) * | 2018-07-24 | 2019-03-29 | 无锡岚凌卓维动力科技有限公司 | A kind of rear chain stay shock-damping structure of electric assisted bicycle |
-
2018
- 2018-07-24 CN CN201810816991.9A patent/CN109018152B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5284351A (en) * | 1991-07-09 | 1994-02-08 | Fleishman Gregg R | Recumbent bicycle |
| CN2362772Y (en) * | 1997-11-10 | 2000-02-09 | 姚亮 | Shock-damping bicycle |
| US6877591B1 (en) * | 2003-11-17 | 2005-04-12 | Yung-Feng Hso | Crank of a shock absorber for a bicycle |
| RU2453463C1 (en) * | 2010-12-13 | 2012-06-20 | Глеб Юрьевич Волков | Two-wheel transport facility with shock-mounted suspension |
| CN206664836U (en) * | 2017-04-27 | 2017-11-24 | 天津杰士科技有限公司 | A kind of rear wheels of electric vehicle Extension Spring-type combined shock absorption device |
| CN108032952A (en) * | 2017-11-13 | 2018-05-15 | 慈溪浩然驱动科技有限公司 | A kind of bicycle bottom bracket and rear chain stay assembling structure |
| CN208665458U (en) * | 2018-07-24 | 2019-03-29 | 无锡岚凌卓维动力科技有限公司 | A kind of rear chain stay shock-damping structure of electric assisted bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109018152A (en) | 2018-12-18 |
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