CN202765181U - Tricycle - Google Patents
Tricycle Download PDFInfo
- Publication number
- CN202765181U CN202765181U CN 201220442439 CN201220442439U CN202765181U CN 202765181 U CN202765181 U CN 202765181U CN 201220442439 CN201220442439 CN 201220442439 CN 201220442439 U CN201220442439 U CN 201220442439U CN 202765181 U CN202765181 U CN 202765181U
- Authority
- CN
- China
- Prior art keywords
- tricycle
- wheel
- frame
- chain
- transmission 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of bicycle manufacturing, and particular to a tricycle. The tricycle comprises a frame, a front wheel, two rear wheels and a power mechanism, wherein the front wheel and the two rear wheels are used for supporting the frame. The tricycle is characterized in that a rotating shaft is supported at the bottom of the frame, two ends of the rotating shaft are key joint with transmission gears, and the transmission gears are connected with driving gears arranged on the two rear wheels through chains, a speed changer is arranged on the rotating shaft, and the speed changer is connected with a pedal chain wheel through a chain. The tricycle has the advantages of being simple in structure, capable of guarantee stability and security of the tricycle and improving brake effect of the tricycle.
Description
Technical field
The utility model relates to bicycle manufacturing technology field, relates in particular to a kind of tricycle.
Background technology
At present, the vehicle frame of well-known manual tricycle is configured to by an integral rigidity, by the ground three point support.With Regular Bicycle be different by the principle of 2 supporting walkings, so people that can be by bike but often can't adapt to the characteristics of riding of three-wheel vehicle, very easily overturns, falls down.Cause personal injury accidents, even can people by tricycle can feel that also it is dumb, when turning round, radius is large, and is dumb, owing to do not have speed changing function, makes user's effort of riding.In addition, traditional three-wheel vehicle band-type brake is additional anchor fitting in the wagon box bottom, and this anchor fitting is installed inconvenient, locate inaccurately, is not easy adjustment, causes easily brake wheel and transmission shaft decentraction.Make the brake location inaccurate, brake failure.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of tricycle is provided, and has higher stability.
The utility model for achieving the above object, by the following technical solutions: a kind of tricycle, comprise vehicle frame, be used for the front-wheel of supporting frame and two trailing wheels, actuating unit, it is characterized in that: described bottom of frame is supported with transmission shaft, the two ends of described transmission shaft are linked with transmission gear, described transmission gear by chain be installed in two driven wheels on the trailing wheel and be connected; On the described transmission shaft change-speed box is installed, described change-speed box is connected with foot chain wheel by chain.
Be separately installed with band-type brake on the described trailing wheel.
Described vehicle frame adopts full aluminium material.
The rear portion of described vehicle frame is equipped with bicycle basket.
The beneficial effects of the utility model are: the utility model is simple in structure, trailing wheel is designed to respectively two an independently driven wheels and change-speed box is installed, rather than traditional coaxial drive, stability and the safety of vehicle have greatly been guaranteed, because trailing wheel adopts the design of double embrace lock, greatly improved the braking effect of vehicle simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of looking up of the present utility model.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1, a kind of tricycle comprises vehicle frame 1, is used for the front-wheel 2 of supporting frame and two trailing wheels 3, actuating unit that actuating unit comprises pedal 4 and foot chain wheel 5.Described bottom of frame is supported with transmission shaft 6, and the two ends of described transmission shaft are linked with transmission gear 7, described transmission gear by chain 8 be installed in two driven wheels 9 on the trailing wheel and be connected; Change-speed box 10 is installed on the described transmission shaft, and described change-speed box is connected with foot chain wheel by chain 11.Be separately installed with band-type brake 12 on the described trailing wheel.Described vehicle frame adopts full aluminium material.The rear portion of described vehicle frame is equipped with bicycle basket 13.
Principle of work: pedal drives foot chain wheel 5 and rotates, and foot chain wheel 5 drives transmission shaft 6 by the chain 11 around change-speed box 10 and rotates, and the gear 7 at transmission shaft two ends rotates by two driven wheels 9 that chain 8 drives on the trailing wheel, travels thereby drive two trailing wheels.
The utility model is simple in structure, trailing wheel is designed to respectively two an independently driven wheels and change-speed box is installed, rather than traditional coaxial drive, stability and the safety of vehicle greatly guaranteed, because trailing wheel adopts the design of double embrace lock, greatly improved the braking effect of vehicle simultaneously.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. tricycle, comprise vehicle frame, be used for the front-wheel of supporting frame and two trailing wheels, actuating unit, it is characterized in that: described bottom of frame is supported with transmission shaft, the two ends of described transmission shaft are linked with transmission gear, described transmission gear by chain be installed in two driven wheels on the trailing wheel and be connected; On the described transmission shaft change-speed box is installed, described change-speed box is connected with foot chain wheel by chain.
2. tricycle according to claim 1 is characterized in that: be separately installed with band-type brake on the described trailing wheel.
3. tricycle according to claim 1 and 2, it is characterized in that: described vehicle frame adopts full aluminium material.
4. tricycle according to claim 3, it is characterized in that: the rear portion of described vehicle frame is equipped with bicycle basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442439 CN202765181U (en) | 2012-08-31 | 2012-08-31 | Tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442439 CN202765181U (en) | 2012-08-31 | 2012-08-31 | Tricycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202765181U true CN202765181U (en) | 2013-03-06 |
Family
ID=47771775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442439 Expired - Fee Related CN202765181U (en) | 2012-08-31 | 2012-08-31 | Tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202765181U (en) |
-
2012
- 2012-08-31 CN CN 201220442439 patent/CN202765181U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |