CN201424112Y - Chain anti-block device for electric vehicle or bicycle - Google Patents
Chain anti-block device for electric vehicle or bicycle Download PDFInfo
- Publication number
- CN201424112Y CN201424112Y CN2009200421575U CN200920042157U CN201424112Y CN 201424112 Y CN201424112 Y CN 201424112Y CN 2009200421575 U CN2009200421575 U CN 2009200421575U CN 200920042157 U CN200920042157 U CN 200920042157U CN 201424112 Y CN201424112 Y CN 201424112Y
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- CN
- China
- Prior art keywords
- flower
- drum
- flywheel
- block
- chain
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- 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 - Lifetime
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Abstract
The utility model discloses a chain anti-block device for an electric vehicle or bicycle. In the technical proposal, a limit stop is arranged between a flywheel and a hook claw of a rear vehicle frameon the side corresponding to the flywheel, and the top part of the limit stop is lower than the minimum blocking tooth surface of the flywheel. With the height of the limit stop, when the chain accidentally slides to the upper surface of the limit stop, the chain can be guided to the minimum blocking tooth surface of the flywheel by operating the speed changing handle. Even if the chain slides into the clearance between the hook claw and the flywheel during running, the chain can not be clamped tightly but can automatically return to the minimum blocking tooth surface of the flywheel by operating the speed changing handle. Therefore, the utility model has the advantages of safety, efficiency, simple structure, low cost and the like.
Description
Technical field
The utility model relates to a kind of speed change battery-driven car, bicycle use safety device, especially a kind of battery-driven car, bicycle chain antiseize device.
Background technology
At present, the trailing wheel transmission of battery-driven car, bicycle is to adopt flywheel and flower-drum collocation to use, these two kinds of gauge members that part all is each company, minimum fluted disc of flywheel and back vehicle frame collude and also have 6 millimeters or above gap (this gap is greater than the chain width) between the pawl when being used, in long-term use and do not note maintaining under the situation of car, chain can become flexible.The bicyclist is in the process of riding, if to minimum gear change gearshift knob, chain can jump from minimum flywheel fast, because of vehicle frame after flywheel and the respective side colludes gap between pawl greater than the chain width, thereby drop in the gap of colluding between pawl and the flywheel, the stuck phenomenon of chain occurs.At this moment, the bicyclist must get off and chain could be resetted by manual, so dangerous, its two trouble of one.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of battery-driven car, bicycle chain antiseize device, when this device can make chain be slipped in the gap of colluding between pawl and the flywheel as accident in the process of riding, can be not stuck yet and the operation by the speed change handgrip can be returned to voluntarily on the minimum retaining flank of tooth of flywheel, safe and effective.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of battery-driven car, the bicycle chain antiseize device, comprise flower-drum, the flower-drum axle center, flower-drum nut and flywheel, the flower-drum axle center is rotated and is located in the flower-drum, the flywheel fixed cover is located at flower-drum one end, the flower-drum nut passes through the screw thread fixed engagement on the flower-drum axle center, the flower-drum nut is the position of flower-drum fixedly, the relative flower-drum nut of flower-drum is rotatable, the flower-drum axle center is fixed in the back vehicle frame and is colluded on the pawl, flower-drum is in back vehicle frame two and colludes between the pawl, vehicle frame colludes in the gap between pawl and is provided with block after flywheel and the respective side, to use direction to be as the criterion, height above the block is lower than the height of the minimum retaining of the flywheel flank of tooth, and described height just can make when the chain accident slides to above the block, and the operation by the speed change handgrip returns on the minimum retaining of the flywheel flank of tooth chain.
Described block is rounded, and rounded being convenient to assembled, and the height when reaching use above the block can be consistent all the time, and because of block in the long-term use process may rotate, the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut.
The structure that the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut is: block is movably set on the flower-drum axle center, flower-drum nut and collude pawl (collude between pawl and the block and be provided with packing ring) and compress the block two sides respectively.
Block is circular in the form of sheets, and extend to the flywheel lateral buckling block neighboring, the abutment face when promptly forming for the landing of chain accident.
The beneficial effects of the utility model are: because vehicle frame colludes in the gap between pawl and is provided with block after flywheel and the respective side, height above the block is lower than the height of the minimum retaining of the flywheel flank of tooth, described height just can make when the chain accident slides to above the block, and the operation by the speed change handgrip returns on the minimum retaining of the flywheel flank of tooth chain.Therefrom can find out, when this example can make chain be slipped in the gap of colluding between pawl and the flywheel as accident in the process of riding, can be not stuck yet and the operation by the speed change handgrip can be returned to voluntarily on the minimum retaining flank of tooth of flywheel, safe and effective, simple in structure and cost is lower.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is one of block scheme drawing described in the utility model;
Fig. 3 is the A-A portion section-drawing of Fig. 2.
The specific embodiment
Embodiment: a kind of battery-driven car, the bicycle chain antiseize device, comprise flower-drum 1, flower-drum axle center 2, flower-drum nut 3 and flywheel 4, the flower-drum axle center is rotated and is located in the flower-drum, the flywheel fixed cover is located at flower-drum one end, the flower-drum nut passes through the screw thread fixed engagement on the flower-drum axle center, the flower-drum nut is the position of flower-drum fixedly, the relative flower-drum nut of flower-drum is rotatable, the flower-drum axle center is fixed in the back vehicle frame and is colluded on the pawl, flower-drum is in back vehicle frame two and colludes between the pawl, vehicle frame colludes in the gap of 5 of pawls and is provided with block 6 after flywheel and the respective side, to use direction to be as the criterion, height above the block is lower than the height of the minimum retaining of the flywheel flank of tooth 41, and described height just can make when the chain accident slides to above the block, and the operation by the speed change handgrip returns on the minimum retaining of the flywheel flank of tooth chain.
Described block is rounded, and rounded being convenient to assembled, and the height when reaching use above the block can be consistent all the time, and because of block in the long-term use process may rotate, the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut.
The structure that the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut is: block is movably set on the flower-drum axle center, flower-drum nut and collude pawl (collude between pawl and the block and be provided with packing ring) and compress the block two sides respectively.
Block is circular in the form of sheets, and extend to the flywheel lateral buckling block neighboring, the abutment face when promptly forming for the landing of chain accident.
In the practical operation, colluding fixing assembling one chip card (being this routine described block) between pawl and the flywheel, the diameter of card is than the internal diameter slightly a little bit smaller (get 1 millimeter or more) of chain when minimum is kept off the flank of tooth, thickness is less than the flywheel minimum retaining flank of tooth and collude gap between the pawl, Thickness Design is 3.5 millimeters, the chip card end face can be held chain when the situation of jumping chain occurring, can not make chain stuck, change gearshift knob this moment, chain will reset, come back on the minimum retaining flank of tooth, thereby conveniently ride.
Claims (4)
1. battery-driven car, the bicycle chain antiseize device, comprise flower-drum (1), flower-drum axle center (2), flower-drum nut (3) and flywheel (4), the flower-drum axle center is rotated and is located in the flower-drum, the flywheel fixed cover is located at flower-drum one end, the flower-drum nut passes through the screw thread fixed engagement on the flower-drum axle center, the flower-drum nut is the position of flower-drum fixedly, the relative flower-drum nut of flower-drum is rotatable, the flower-drum axle center is fixed in the back vehicle frame and is colluded on the pawl, flower-drum is in back vehicle frame two and colludes between the pawl, it is characterized in that: vehicle frame colludes in the gap between pawl (5) and is provided with block (6) after flywheel and the respective side, to use direction to be as the criterion, height above the block is lower than the height of the flywheel minimum retaining flank of tooth (41), and described height just can make when the chain accident slides to above the block, and the operation by the speed change handgrip returns on the minimum retaining of the flywheel flank of tooth chain.
2. battery-driven car according to claim 1, bicycle chain antiseize device is characterized in that: described block is rounded, and the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut.
3. battery-driven car according to claim 2, bicycle chain antiseize device, it is characterized in that: the structure that the block fixed cover is located on the flower-drum axle center of colluding between pawl and the flower-drum nut is: block is movably set on the flower-drum axle center, the flower-drum nut with collude pawl and compress the block two sides respectively.
4. battery-driven car according to claim 3, bicycle chain antiseize device is characterized in that: block is circular in the form of sheets, and extend to the flywheel lateral buckling block neighboring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200421575U CN201424112Y (en) | 2009-03-23 | 2009-03-23 | Chain anti-block device for electric vehicle or bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200421575U CN201424112Y (en) | 2009-03-23 | 2009-03-23 | Chain anti-block device for electric vehicle or bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201424112Y true CN201424112Y (en) | 2010-03-17 |
Family
ID=42023548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200421575U Expired - Lifetime CN201424112Y (en) | 2009-03-23 | 2009-03-23 | Chain anti-block device for electric vehicle or bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201424112Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904147A (en) * | 2016-04-25 | 2016-08-31 | 苏州达恩克精密机械有限公司 | Automobile vent-pipe assembly machine |
-
2009
- 2009-03-23 CN CN2009200421575U patent/CN201424112Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904147A (en) * | 2016-04-25 | 2016-08-31 | 苏州达恩克精密机械有限公司 | Automobile vent-pipe assembly machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |