CN108297979A - A kind of changeable anti-theft bicycle - Google Patents
A kind of changeable anti-theft bicycle Download PDFInfo
- Publication number
- CN108297979A CN108297979A CN201810245274.5A CN201810245274A CN108297979A CN 108297979 A CN108297979 A CN 108297979A CN 201810245274 A CN201810245274 A CN 201810245274A CN 108297979 A CN108297979 A CN 108297979A
- Authority
- CN
- China
- Prior art keywords
- pawl
- ratchet
- foot
- seat
- operated
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
- B62H5/08—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive
- B62H5/12—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive acting on the chain wheel or the chain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
Abstract
A kind of changeable anti-theft bicycle, including vehicle frame, wheel, foot-operated axis, foot-operated big flywheel, foot-operated and rear flywheel, further include two groups of ratchet mechanisms；Left side ratchet mechanism, which is set at vehicle frame, in the ratchet mechanism rides axis left end, is integrally attached on vehicle frame；Right-side ratchet mechanism is arranged at the foot-operated big flywheel of foot-operated axis right end in the ratchet mechanism.Left side ratchet mechanism includes one dead position of lock and open position, and bicycle is in locking state when in locked position, not rideable；Bicycle is in rideable state when in open position.Right-side ratchet mechanism also includes a locked position and open position；When the left side ratchet mechanism is in open position, while right-side ratchet mechanism is in locked position, bicycle becomes fixed gear condition, can swing to and ride；When the left side ratchet mechanism is in open position, while right-side ratchet mechanism is in open position, bicycle is in normal riding condition.
Description
Technical field
The present invention relates to technical field of bicycles, more particularly, to a kind of changeable anti-theft bicycle.
Background technology
Currently, most bicycles are all next antitheft using the exterior latch device such as chain, U-shape lock.Chain, U-shape lock
It etc. relatively cumbersome, occupied space, is positioned over when not in use on bicycle also unsightly, even can influence the normal of bicycle sometimes
It rides.
In addition, occurring a kind of fixed gear wheel bicycle in the market, such bicycle rear flywheel is integral type knot with trailing wheel
Structure can be realized and ride function backwards and can be used as stunt vehicle.Existing bicycle only has a kind of function more, if it is desired to which transformation is certainly
The function of driving can only separately buy one, and such cost is higher.
Invention content
To solve above-mentioned problems of the prior art, the present invention provides a kind of changeable anti-theft bicycle, tools
Body technique scheme is as follows：
A kind of changeable anti-theft bicycle, including vehicle frame, wheel, foot-operated axis, Pedal flywheel, foot-operated, rear flywheel are also
Including the two groups of ratchet structures in left and right；Wherein, left side ratchet structure is set at vehicle frame and rides on axis, right-side ratchet structure setting
At the foot-operated big flywheel of the foot-operated axis other end；Rear flywheel is integral type fixed structure with rear wheel.
The left side ratchet structure includes left side ratchet, left side pawl seat, two, left side pawl, left side lock body, left side lock
Core shifting block, left side spine flap；It is hollow structure that the left side pawl seat, which is fixed on vehicle frame, and described two pawls are symmetricly set on
Inside the pawl seat of left side, one end connect swingable with left side pawl seat, and one end is provided with more than one ratchet and is provided with
It is connected inside two left side resetting springs and left side pawl seat.
The left side spine flap fixed cover on the pawl seat of left side, middle part be placed on foot-operated axis left end and with foot-operated axis
There is certain space that foot-operated axis can be rotated wherein.
The left side lock body is arranged on the spine flap of left side, wherein left side lock core shifting block is located among two pawls.
The left side ratchet is fixedly attached to foot-operated axis left end, irremovable；The left side pawl seat is arranged in left side
Ratchet periphery and with left side coaxial ratchet.
The left side ratchet mechanism left side is that left side is ridden connecting rod and ridden.
The right-side ratchet mechanism include ride big flywheel, right-side ratchet, right-side ratchet seat, two pawls, right side lock body,
Right side lock core shifting block.
It is hollow structure that the right-side ratchet seat, which is fixed on foot-operated big flywheel, and described two pawls are symmetricly set on right side
Inside pawl seat, one end connect with right-side ratchet seat it is swingable, one end be provided with more than one ratchet and be arranged there are two
It is connected inside right side resetting spring and right-side ratchet seat.
It is placed on foot-operated axis right end in the middle part of the foot-operated big flywheel and has certain space to make foot-operated axis with foot-operated axis
It can rotate wherein.
The right side lock body setting is on riding big flywheel, wherein right side lock core shifting block is located among two pawls, it is described
Right side lock core shifting block is set as left side lock core shifting block half size, and a rightward pawl can only be pushed when being in horizontal position.
The right-side ratchet is fixedly attached to foot-operated axis right end, irremovable；The right-side ratchet seat is arranged on right side
Ratchet periphery is simultaneously coaxial with right-side ratchet.
It is that right side is ridden connecting rod and ridden on the right of the right-side ratchet mechanism.
The foot-operated big flywheel connect linkage by chain with bicycle rear flywheel.
Further, the foot-operated axis left end and/or right end are set as a cube body mechanism, the left side pawl seat and/or
It is provided with the square hole to match with the cube in the middle part of right-side ratchet seat and is socketed on the cube；The left side ratchet
The left side and/or right-side ratchet seat on the right of be provided with check ring and prevent the left side ratchet and/or right-side ratchet seat or so
It is mobile.
Advantageous effect：
Anti-theft device and bicycle setting are an integral structure by the present invention, neither occupy exceptional space, having will not shadow
Ring the normally travel of bicycle.Meanwhile the present invention is by being arranged two groups of ratchet structures by being applied in combination so that bicycle both may be used
With normally travel, and fixed gear type bicycle can be turned into, achieve the purpose that carrying out special performance uses.
Description of the drawings
Fig. 1 is overall appearance structure chart of the present invention
Fig. 2 is the ratchet structure installation position partial enlarged view of the present invention
Fig. 3 is the whole installation diagram of the ratchet structure of the present invention
Fig. 4 is the whole assembly axial sectional view of the ratchet structure of the present invention
Fig. 5 is the internal structural map of the left side ratchet structure of the present invention
Fig. 6 is the internal structural map of the right-side ratchet structure of the present invention
Fig. 7 is the whole assembly axial sectional view of another ratchet structure of the present invention
Fig. 8 is that the foot-operated big flywheel of the present invention connect linkage figure with rear flywheel
In figure：1 foot-operated axis, 2 left side lock bodies, 3 left side spine flaps, 4 left side pawl seats, 5 left side ratchets, 6 one spine of left side
Big flywheel, 12 are ridden in pawl, 7 left side lock core shifting blocks, 8 two pawls of left side, 9 one resetting springs of left side, 10 two resetting springs of left side, 11
Rear flywheel, 13 check rings, 14 right-side ratchets, 15 right-side ratchet seats, 16 one pawls of right side, 17 two pawls of right side, 18 right side locks
Body, 19 right side lock core shifting blocks, 20 one resetting springs of right side, 21 two resetting springs of right side
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing being more specifically described to technical scheme of the present invention, need
Bright is that the "left", "right" occurred in claims of the present invention, specification etc. refers to the process of being ridden in bicycle
In orientation identical with human body；And the orientation of "horizontal", "vertical" when referring to bicycle normal stand relative to ground.Meanwhile
The overall appearance structure chart for going out bicycle of the present invention given in attached drawing is a kind of schematic diagram, should not be understood as the present invention to be protected
A kind of contour structures of changeable anti-theft bicycle of shield are only limited to shown in same attached drawing.
As shown in Figure 1, 2, a kind of changeable anti-theft bicycle of the present invention includes vehicle frame, wheel, foot-operated axis, rides greatly
Flywheel, foot-operated, rear flywheel further include the two groups of ratchet structures in left and right；Wherein, left side ratchet structure, which is set at vehicle frame, rides axis 1
Left end, the left side ratchet mechanism are integrally attached on vehicle frame；Right-side ratchet structure setting is in the foot-operated big of foot-operated 1 right end of axis
At flywheel 11.The rear flywheel 12 is integral type fixed structure with rear wheel.
As shown in Fig. 3 to 6, the left side ratchet structure includes left side lock body 2, left side spine flap 3, left side pawl seat 4, a left side
Gemmule wheel 5, one pawl 6 of left side, two pawl 8 of left side, left side lock core shifting block 7；The left side pawl seat 4 is fixed on is on vehicle frame
Hollow structure, one pawl 6 of the left side are symmetricly set on two pawl 8 of left side inside the pawl seat 4 of left side, one end and left side pawl seat
4 connections are swingable, and the other end is provided with more than one ratchet and is correspondingly arranged on one resetting spring 9 of left side and left side respectively
Two resetting springs 10 are connected with 4 inside of left side pawl seat.
3 fixed cover of left side spine flap on left side pawl seat 4, middle part be placed on 1 left end of foot-operated axis and with it is foot-operated
Axis 1 has certain space that foot-operated axis 1 can be rotated wherein.
The left side lock body 2 is arranged on left side spine flap 3, wherein left side lock core, which dials 7 pieces, is located at one pawl 6 of left side and a left side
Between two pawl 8 of side.
The left side ratchet 5 is directly fixedly attached to 1 left end of foot-operated axis, irremovable；The left side pawl seat 4 is arranged
It is peripheral in the left side ratchet 5 and coaxial with left side ratchet 5.
The right-side ratchet mechanism includes foot-operated big flywheel 11, right-side ratchet 14, right-side ratchet seat 15, one pawl of right side
16, two pawl 17 of right side, right side lock body 18, right side lock core shifting block 19；
It is hollow structure, one pawl 16 of the right side and right side that the right-side ratchet seat 15, which is fixed on foot-operated big flywheel 11,
Two pawls 17 are symmetricly set on inside the right-side ratchet seat 15, one end connect with the right-side ratchet seat 15 it is swingable,
One end is provided with more than one ratchet and is provided with one resetting spring 20 of right side and two resetting spring 21 of right side and right-side ratchet seat
15 inside are connected.
11 middle part of big flywheel of riding is placed on 1 right end end of foot-operated axis and has certain space to ride with foot-operated axis
Axis can rotate wherein.
The right-side ratchet 14 is fixedly attached to 1 right end of foot-operated axis, irremovable；The setting of right-side ratchet seat 15 exists
14 periphery of right-side ratchet is simultaneously coaxial with right-side ratchet 14.
The right side lock body 18 is arranged on foot-operated big flywheel 11, wherein right side lock core shifting block 19 is located at one pawl 16 of right side
Among two pawl 17 of right side, the right side lock core shifting block 19 is set as the half size of left side lock core shifting block 7, in level
Right side two pawl 17 of spine can only be pushed when position.
As shown in fig. 7, the fixed another embodiment of the left side pawl seat 5 and right-side ratchet seat 14, it is described it is foot-operated in
1 left end of axis and/or right end are set as a cube body mechanism, the left side pawl seat 5 and/or 14 middle part of right-side ratchet seat be provided with
The square hole of the cube matching is simultaneously socketed on the cube；The left side of the left side ratchet 5 and/or right-side ratchet seat
14 the right, which is provided with check ring 13, prevents the left side ratchet 5 and/or right-side ratchet seat 14 from moving left and right.
The left side ratchet mechanism left side is left side pedal connecting rod and left threading.
It is right side pedal connecting rod and right threading on the right of the right-side ratchet mechanism.
As shown in figure 8, the foot-operated big flywheel 11 connect linkage by chain with bicycle rear flywheel 12.
When car locking：Left side lock body 2 is inserted a key into, torsion to locked position, left side lock core shifting block 7 is in vertical shape at this time
State, one pawl 6 of left side on left side pawl seat 4 is with two pawl 8 of left side in two resetting spring 10 of one resetting spring 9 of left side and left side
Promotion under engaged with left side ratchet 5 and block the left side ratchet 5.Since the left side pawl seat 4 is fixed on vehicle frame, institute
It states left side ratchet 5 to be fixed on foot-operated axis 1, riding axis 1 at this time cannot be rotated by locked.Meanwhile it will be in right side lock body 18
Key reverse to locked position, right side lock core shifting block 19 is in vertical position, one pawl 16 of the right side and the right side two at this time
Pawl 17 blocks right-side ratchet 14 under the promotion of two resetting spring 22 of one resetting spring 20 of right side and right side, rides axis at this time
Right end and foot-operated big flywheel 11 are locked, and riding big flywheel 11 cannot rotate, and thus rear flywheel 12 can not turn together with trailing wheel
Dynamic, car is locked.
When normal cycling：Left side key is torqued into open position, left side lock core shifting block 7 is in horizontal position, the left side at this time
One pawl 6 of side, since pushing for the left side lock core shifting block 7 detaches with the left side ratchet 5, is ridden at this time with two pawl 8 of left side
Axis left end is unrestricted, free to rotate.The right key is torqued into open position simultaneously, right side lock core shifting block 19 is at this time
Horizontal position, the right side lock core shifting block 19 pushes two pawl 17 of the right side and is detached with the right-side ratchet 14, and the right side
One pawl 16 blocks right-side ratchet 14 under the promotion of one resetting spring 20 of right side, rides axis right end at this time and rides big flywheel
11 connections, foot-operated big flywheel turns can be driven by pedaling to ride；When foot-operated stopping is stepped on, axis 11 is ridden together with right-side ratchet
14 are simultaneously stopped rotation, at this time ride big flywheel 11 together with one pawl 16 of right side rear flywheel 12 drive under relative to right-side ratchet
14 rotate clockwise, and one pawl 16 of right side does not limit right-side ratchet 14, and bicycle can slide.
When mapping function：Left side key is torqued into open position, left side lock core shifting block 7 is in horizontal position, the left side at this time
One pawl 6 of side, since pushing for the left side lock core shifting block 7 detaches with the left side ratchet 5, is ridden at this time with two pawl 8 of left side
Axis left end is unrestricted, free to rotate.The right key is torqued into locked position simultaneously, right side lock core shifting block 19 is at this time
Vertical position, one pawl 16 of the right side and two pawl 17 of the right side are in two resetting spring 22 of one resetting spring 20 of right side and right side
Promotion under block right-side ratchet 14, at this time ride axis right end connect with foot-operated big flywheel 11, pedal clockwise ride
Foot-operated big flywheel 11 is driven to rotate clockwise, bicycle moves forward；Foot-operated big flywheel can be driven when pedaling foot-operated counterclockwise
11 rotate counterclockwise, and bicycle can travel backward.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of changeable anti-theft bicycle, including vehicle frame, wheel, foot-operated axis, rides big flywheel, is foot-operated and rear fly
Wheel, which is characterized in that the theft-proof device for bicycle further includes two groups of ratchet mechanisms；
Left side ratchet mechanism, which is set at vehicle frame, in the ratchet mechanism rides axis (1) left end, and the left side ratchet mechanism is whole
Body is fixed on the vehicle frame；The setting of right-side ratchet mechanism is in the foot-operated big winged of foot-operated axis (1) right end in the ratchet mechanism
It takes turns at (11)；
The left side ratchet mechanism include left side lock body (2), left side spine flap (3), left side pawl seat (4), left side ratchet (5),
One pawl of left side (6), two pawl of left side (8), left side lock core shifting block (7), one resetting spring of left side (9), two resetting spring of left side
(10)；
The left side lock body (2) includes a locked position and an open position；When the left side lock body (2) is in locked position,
The left side lock core sets (7) ahead and is in vertical position, and one resetting spring of the left side (9), two resetting spring of left side (10) push institute
A pawl (6), two pawl of left side (8) block left side ratchet (5) bicycle and are in locking state on the left of stating, not rideable；
When the left side lock body (2) is in open position, the left side lock core sets (7) ahead and is in horizontal position, and the left side lock core is set ahead
(7) push one pawl of the left side (6), two pawl of left side (8) is detached with the left side ratchet (5), bicycle be in it is rideable
State；
The right-side ratchet mechanism includes riding big flywheel (11), right-side ratchet (14), right-side ratchet seat (15), one pawl of right side
(16), two pawl of right side (17), right side lock body (18), right side lock core shifting block (19), one resetting spring of right side (20), right side two are multiple
Position spring (21)；
The right side lock body (18) also includes a locked position and an open position；When the left side lock body (2) is in open position,
When the right side lock body (18) is in locked position simultaneously, one resetting spring of the right side (20), two resetting spring of right side (21) push away
Dynamic one pawl of the right side (16), two pawl of right side (17), which block the right-side ratchet (14) bicycle, becomes fixed gear-like
State can swing to and ride；When the left side lock body (2) is in open position, while when the right side lock body (18) is in open position
The right side lock core sets (19) ahead and is in horizontal position, and the right side lock core sets (19) ahead and pushes two pawl of the right side (17) and institute
Right-side ratchet (14) separation is stated, bicycle is in normal riding condition.
2. a kind of changeable anti-theft bicycle according to claim 1, wherein the left side pawl seat (4) is fixed on
It is hollow structure on vehicle frame, one pawl of the left side (6) is symmetricly set on left side pawl seat (4) inner wall with two pawl of left side (8)
On, one end connect swingable with left side pawl seat (4), and the other end is provided with more than one ratchet；The right-side ratchet seat
(15) it is hollow structure to be fixed on foot-operated big flywheel (11), and one pawl of the right side (16) is symmetrically set with two pawl of right side (17)
Set internal in the right-side ratchet seat (15), one end connect swingable with the right-side ratchet seat (15), and one end is provided with
More than one ratchet.
3. a kind of changeable anti-theft bicycle according to claim 2, wherein one pawl of the left side (6) and left side
The one end of two pawls (8) far from left side ratchet (4) inner wall is respectively arranged with one resetting spring of left side (9) and left side two resets
Spring (10), one resetting spring of the left side (9) and two resetting spring of left side (10) are far from left side pawl one end and left side
Pawl seat (4) inner wall is connected；One pawl of the right side (16) is with two pawl of right side (17) far from the right-side ratchet (14) inner wall
One end be respectively arranged with one resetting spring of right side (20) and two resetting spring of right side (21), one resetting spring of the right side (20)
It is connected with right-side ratchet seat (14) inner wall far from described rightward pawl one end with two resetting spring of right side (21).
4. a kind of changeable anti-theft bicycle according to claim 1, wherein left side spine flap (3) fixed cover
On left side pawl seat (4), middle part is placed on foot-operated axis (1) left end and has certain space to ride with foot-operated axis (1)
Axis (1) can rotate wherein；The foot-operated big flywheel (11) is fixed on the right-side ratchet seat (15), described foot-operated big winged
Foot-operated axis (1) right end and foot-operated axis (1) are placed in the middle part of wheel (11) has certain space that foot-operated axis (1) can be turned wherein
It is dynamic.
5. a kind of changeable anti-theft bicycle according to claim 4, wherein the left side lock body (2) is arranged on a left side
On gemmule flap (3), it is located between one pawl of left side (6) and two pawl of left side (8) wherein left side lock core dials (7) block；The right side
Side chain body (18) setting is on riding big flywheel (11), wherein right side lock core shifting block (19) is located at one pawl of right side (16) and right side
Two pawls (17) are intermediate, and the right side lock core shifting block (19) is set as the half size of left side lock core shifting block (7), in level
Right side two pawl of spine (17) can only be pushed when position.
6. a kind of changeable anti-theft bicycle according to claim 1, wherein the left side ratchet (5) is directly fixed
It is socketed in foot-operated axis (1) left end, it is irremovable；The left side pawl seat (4) setting the left side ratchet (5) periphery and with
Left side ratchet (5) is coaxial；The right-side ratchet (14) is fixedly attached to foot-operated axis (1) right end, irremovable；The right side spine
Wheel seat (15) setting is peripheral in right-side ratchet (14) and coaxial with right-side ratchet (14).
7. a kind of changeable anti-theft bicycle according to claim 1, wherein foot-operated axis (1) left end and/or
Right end is set as a cube body mechanism, is provided with and described cube in the middle part of the left side pawl seat (5) and/or right-side ratchet seat (14)
The square hole of body matching is simultaneously socketed on the cube；The left side of the left side ratchet (5) and/or right-side ratchet seat (14)
The right, which is provided with check ring (13), prevents the left side ratchet (5) and/or right-side ratchet seat (14) from moving left and right.
8. a kind of changeable anti-theft bicycle as claimed in any of claims 1 to 7, wherein it is described it is foot-operated in
Axis (1) left end is connected with left side pedal connecting rod and left threading, and right end is connected with right side pedal connecting rod and right threading.
9. a kind of changeable anti-theft bicycle as claimed in any of claims 1 to 7, wherein the bicycle
Rear flywheel (12) is integral type fixed structure with the bicycle rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245274.5A CN108297979B (en) | 2018-03-23 | 2018-03-23 | Anti-theft bicycle with changeable functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245274.5A CN108297979B (en) | 2018-03-23 | 2018-03-23 | Anti-theft bicycle with changeable functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108297979A true CN108297979A (en) | 2018-07-20 |
| CN108297979B CN108297979B (en) | 2023-08-04 |
Family
ID=62846350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245274.5A Active CN108297979B (en) | 2018-03-23 | 2018-03-23 | Anti-theft bicycle with changeable functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108297979B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190428087A (en) * | 1904-12-22 | 1905-11-09 | William Powell | Improvements in Free Wheel and Brake Attachments and Two-speed Gears for Cycles. |
| CN2414987Y (en) * | 2000-04-18 | 2001-01-17 | 姜文国 | Coiled spring energy-accumulated assistor bicycle |
| CN1439570A (en) * | 2003-04-09 | 2003-09-03 | 欧阳宝武 | Self switching three sprockets of bicycle |
| CN205034217U (en) * | 2015-10-13 | 2016-02-17 | 中国石油大学(华东) | Novel bicycle lock |
| CN206938921U (en) * | 2017-05-08 | 2018-01-30 | 武君 | The positive and negative cycling of integrated lock type |
| CN208411926U (en) * | 2018-03-23 | 2019-01-22 | 黄冈师范学院 | A kind of changeable anti-theft bicycle |
-
2018
- 2018-03-23 CN CN201810245274.5A patent/CN108297979B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190428087A (en) * | 1904-12-22 | 1905-11-09 | William Powell | Improvements in Free Wheel and Brake Attachments and Two-speed Gears for Cycles. |
| CN2414987Y (en) * | 2000-04-18 | 2001-01-17 | 姜文国 | Coiled spring energy-accumulated assistor bicycle |
| CN1439570A (en) * | 2003-04-09 | 2003-09-03 | 欧阳宝武 | Self switching three sprockets of bicycle |
| CN205034217U (en) * | 2015-10-13 | 2016-02-17 | 中国石油大学(华东) | Novel bicycle lock |
| CN206938921U (en) * | 2017-05-08 | 2018-01-30 | 武君 | The positive and negative cycling of integrated lock type |
| CN208411926U (en) * | 2018-03-23 | 2019-01-22 | 黄冈师范学院 | A kind of changeable anti-theft bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108297979B (en) | 2023-08-04 |
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