CN108297979B - Anti-theft bicycle with changeable functions - Google Patents
Anti-theft bicycle with changeable functions Download PDFInfo
- Publication number
- CN108297979B CN108297979B CN201810245274.5A CN201810245274A CN108297979B CN 108297979 B CN108297979 B CN 108297979B CN 201810245274 A CN201810245274 A CN 201810245274A CN 108297979 B CN108297979 B CN 108297979B
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- China
- Prior art keywords
- ratchet
- pedal
- pawl
- bicycle
- seat
- 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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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 variable function anti-theft bicycle comprises a frame, wheels, a pedal center shaft, a pedal big flywheel, pedals and a rear flywheel, and also comprises two groups of ratchet mechanisms; the left side ratchet mechanism of the ratchet mechanism is arranged at the left end of a pedal center shaft at the frame and is integrally fixed on the frame; the right side ratchet mechanism of the ratchet mechanism is arranged at the pedal big flywheel at the right end of the pedal middle shaft. The left ratchet mechanism comprises a dead lock position and an open lock position, and when the left ratchet mechanism is positioned in the dead lock position, the bicycle is in a dead lock state and cannot be ridden; when in the open position, the bicycle is in a rideable state. The right ratchet mechanism also comprises a locking position and an opening position; when the left ratchet mechanism is in an opening position and the right ratchet mechanism is in a locking position, the bicycle is in a fixed gear state and can be ridden reversely; when the left ratchet mechanism is at the opening position and the right ratchet mechanism is at the opening position, the bicycle is in a normal riding state.
Description
Technical Field
The invention relates to the technical field of bicycles, in particular to a variable-function antitheft bicycle.
Background
Currently, most bicycles use external lock devices such as a chain and a U-shaped lock to prevent theft. The lock chain, the U-shaped lock and the like are relatively heavy, occupy space, are not attractive when not used and can even influence the normal riding of the bicycle.
In addition, a fixed gear bicycle has appeared in the market, and this kind of bicycle rear flywheel and rear wheel structure as an organic whole can realize the function of riding backward and can regard as the special effect to show with the car. The existing bicycle has more than one function, and if the function of the bicycle is required to be changed, only one other bicycle can be purchased, so that the cost is high.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a variable function anti-theft bicycle, which has the following specific technical scheme:
a variable function anti-theft bicycle comprises a frame, wheels, a pedal center shaft, a pedal flywheel, a pedal and a rear flywheel, and also comprises a left ratchet wheel structure and a right ratchet wheel structure; the left ratchet wheel structure is arranged on a pedal middle shaft at the frame, and the right ratchet wheel structure is arranged on a pedal big flywheel at the other end of the pedal middle shaft; the rear flywheel and the rear wheel are of an integrated fixing structure.
The left ratchet structure comprises a left ratchet, a left ratchet seat, a left two pawls, a left lock body, a left lock cylinder shifting block and a left ratchet seat cover; the left ratchet seat is fixed on the frame and is of a hollow structure, the two pawls are symmetrically arranged inside the left ratchet seat, one end of the two pawls is connected with the left ratchet seat and can swing freely, and the other end of the two pawls is provided with more than one ratchet and two left reset springs which are connected with the inside of the left ratchet seat.
The left ratchet seat cover is fixedly covered on the left ratchet seat, and the middle part of the left ratchet seat cover is sleeved at the left end of the pedal center shaft and has a certain space with the pedal center shaft so that the pedal center shaft can rotate in the pedal center shaft.
The left lock body is arranged on the left ratchet seat cover, and the left lock cylinder shifting block is positioned between the two pawls.
The left ratchet wheel is fixedly sleeved at the left end of the pedal middle shaft and cannot move; the left ratchet seat is arranged on the periphery of the left ratchet and is coaxial with the left ratchet.
The left side of the left ratchet mechanism is provided with a left pedal connecting rod and pedals.
The right ratchet mechanism comprises a pedal large flywheel, a right ratchet wheel seat, two pawls, a right lock body and a right lock cylinder shifting block.
The right ratchet wheel seat is fixed on the pedal big flywheel to be hollow structure, two pawls are symmetrically arranged inside the right ratchet wheel seat, one end of the two pawls is connected with the right ratchet wheel seat and can swing freely, and the other end of the two pawls is provided with more than one ratchet and two right reset springs which are connected with the inside of the right ratchet wheel seat.
The middle part of the pedal big flywheel is sleeved at the right end of the pedal middle shaft and has a certain space with the pedal middle shaft so that the pedal middle shaft can rotate in the pedal middle shaft.
The right lock body is arranged on the pedal big flywheel, wherein the right lock cylinder shifting block is positioned between the two pawls, the right lock cylinder shifting block is arranged to be half of the left lock cylinder shifting block, and only one right pawl can be jacked when the right lock cylinder shifting block is positioned in the horizontal position.
The right ratchet wheel is fixedly sleeved at the right end of the pedal middle shaft and cannot move; the right ratchet seat is arranged on the periphery of the right ratchet and is coaxial with the right ratchet.
The right side of the right ratchet mechanism is provided with a right pedal connecting rod and pedals.
The pedal big flywheel is connected and linked with the rear flywheel of the bicycle by a chain.
Further, the left end and/or the right end of the pedal center shaft are/is provided with a cube mechanism, and the middle part of the left ratchet seat and/or the right ratchet seat is provided with a square hole matched with the cube and sleeved on the cube; a spring retainer ring is arranged on the left side of the left ratchet wheel and/or the right side of the right ratchet wheel seat to prevent the left ratchet wheel and/or the right ratchet wheel seat from moving left and right.
The beneficial effects are that:
the anti-theft device and the bicycle are arranged into an integrated structure, so that the anti-theft device and the bicycle do not occupy extra space and can not influence the normal running of the bicycle. Meanwhile, the bicycle can not only normally run but also become a fixed gear type bicycle through the combination of the two groups of ratchet structures, so that the purpose of special performance is achieved.
Drawings
FIG. 1 is a diagram showing the overall appearance of the present invention
FIG. 2 is an enlarged view of a portion of the ratchet structure of the present invention
FIG. 3 is an overall assembly view of the ratchet structure of the present invention
FIG. 4 is an axial cross-sectional view of the entire assembly of the ratchet structure of the present invention
FIG. 5 is an internal view of the left ratchet structure of the present invention
FIG. 6 is an internal construction view of the right side ratchet mechanism of the present invention
FIG. 7 is an axial cross-sectional view of an assembled ratchet structure in accordance with another embodiment of the present invention
FIG. 8 is a diagram showing the connection linkage between the pedal big flywheel and the rear flywheel of the present invention
In the figure: a pedal center shaft 1, a left lock body 2, a left ratchet seat cover 3, a left ratchet seat 4, a left ratchet wheel 5, a left first pawl 6, a left lock cylinder shifting block 7, a left second pawl 8, a left first return spring 9, a left second return spring 10, a pedal big flywheel 11, a pedal big flywheel 12 rear flywheel, 13 spring retainer ring, 14 right ratchet wheel, 15 right ratchet wheel seat, 16 right first pawl, 17 right second pawl, 18 right lock body, 19 right lock cylinder shifting block, 20 right first return spring, 21 right second return spring
Detailed Description
The technical scheme of the invention is further specifically described below by means of embodiments and with reference to the accompanying drawings, and it is to be noted that "left" and "right" appearing in the claims, the description and the like of the invention refer to the same orientation as a human body during the process of riding a bicycle; while "horizontal" and "vertical" refer to orientations of the bicycle relative to the ground when standing normally. Meanwhile, the whole appearance structure of the bicycle provided by the invention is only a schematic diagram, and the appearance structure of the anti-theft bicycle with the variable functions, which is required to be protected by the invention, is not understood to be limited to be shown in the same drawing.
As shown in fig. 1 and 2, the anti-theft bicycle with variable functions comprises a frame, wheels, a pedal center shaft, a pedal big flywheel, pedals and a rear flywheel, and also comprises a left ratchet wheel structure and a right ratchet wheel structure; the left ratchet wheel structure is arranged at the left end of a pedal center shaft 1 at the frame, and the left ratchet wheel structure is integrally fixed on the frame; the right side ratchet wheel structure is arranged at the pedal big flywheel 11 at the right end of the pedal middle shaft 1. The rear flywheel 12 and the rear wheels are of an integral fixed structure.
As shown in fig. 3 to 6, the left ratchet structure comprises a left lock body 2, a left ratchet seat cover 3, a left ratchet seat 4, a left ratchet 5, a left first pawl 6, a left second pawl 8 and a left lock cylinder shifting block 7; the left ratchet seat 4 is fixed on the frame and is of a hollow structure, the left first pawl 6 and the left second pawl 8 are symmetrically arranged inside the left ratchet seat 4, one end of the left first pawl is connected with the left ratchet seat 4 and can swing freely, and the other end of the left first pawl is provided with more than one ratchet and is correspondingly provided with a left first reset spring 9 and a left second reset spring 10 which are connected with the inside of the left ratchet seat 4 respectively.
The left ratchet seat cover 3 is fixedly covered on the left ratchet seat 4, and the middle part of the left ratchet seat cover is sleeved at the left end of the pedal middle shaft 1 and has a certain space with the pedal middle shaft 1 so that the pedal middle shaft 1 can rotate in the pedal middle shaft.
The left lock body 2 is arranged on the left ratchet seat cover 3, wherein a left lock cylinder poking 7 block is positioned between the left first pawl 6 and the left second pawl 8.
The left ratchet wheel 5 is directly fixedly sleeved at the left end of the pedal middle shaft 1 and is immovable; the left ratchet seat 4 is arranged at the periphery of the left ratchet wheel 5 and is coaxial with the left ratchet wheel 5.
The right ratchet mechanism comprises a pedal large flywheel 11, a right ratchet 14, a right ratchet seat 15, a right first pawl 16, a right second pawl 17, a right lock body 18 and a right lock cylinder shifting block 19;
the right ratchet seat 15 is fixed on the pedal big flywheel 11 to be a hollow structure, the right first pawl 16 and the right second pawl 17 are symmetrically arranged inside the right ratchet seat 15, one end of the right first pawl is connected with the right ratchet seat 15 and can swing freely, one end of the right first pawl is provided with more than one ratchet, and the right first reset spring 20 and the right second reset spring 21 are connected with the inside of the right ratchet seat 15.
The middle part of the pedal big flywheel 11 is sleeved at the right end of the pedal middle shaft 1 and has a certain space with the pedal middle shaft so that the pedal middle shaft can rotate in the pedal middle shaft.
The right ratchet wheel 14 is fixedly sleeved at the right end of the pedal middle shaft 1 and is immovable; the right ratchet seat 15 is disposed around the right ratchet 14 and coaxial with the right ratchet 14.
The right lock body 18 is arranged on the pedal flywheel 11, wherein the right lock cylinder shifting block 19 is positioned between the right first pawl 16 and the right second pawl 17, the right lock cylinder shifting block 19 is arranged to be half of the left lock cylinder shifting block 7, and only the right second pawl 17 can be jacked when the right lock cylinder shifting block is in a horizontal position.
As shown in fig. 7, in another embodiment where the left side ratchet wheel seat 4 and the right side ratchet wheel seat 15 are fixed, the left end and/or the right end of the pedal middle shaft 1 is provided with a cube mechanism, and a square hole matched with the cube is arranged in the middle of the left side ratchet wheel seat 4 and/or the right side ratchet wheel seat 15 and is sleeved on the cube; a spring retainer ring 13 is arranged on the left side of the left ratchet wheel 5 and/or the right side of the right ratchet wheel seat 15 to prevent the left ratchet wheel 5 and/or the right ratchet wheel seat 15 from moving left and right.
The left side of the left ratchet mechanism is provided with a left pedal connecting rod and a left pedal.
The right side of the right ratchet mechanism is provided with a right pedal connecting rod and a right pedal.
As shown in fig. 8, the pedal large flywheel 11 is connected and linked with the bicycle rear flywheel 12 by a chain.
Locking the vehicle: the key is inserted into the left lock body 2 and is twisted to a locking position, at the moment, the left lock cylinder shifting block 7 is in a vertical state, and the left first pawl 6 and the left second pawl 8 on the left ratchet wheel seat 4 are meshed with the left ratchet wheel 5 under the pushing of the left first reset spring 9 and the left second reset spring 10 and clamp the left ratchet wheel 5. Because the left ratchet wheel seat 4 is fixed on the frame, the left ratchet wheel 5 is fixed on the pedal middle shaft 1, and the pedal middle shaft 1 is locked and can not rotate at the moment. Simultaneously, the key in the right lock body 18 is twisted to a locking position, at the moment, the right lock cylinder shifting block 19 is in a vertical position, the right first pawl 16 and the right second pawl 17 clamp the right ratchet wheel 14 under the pushing of the right first reset spring 20 and the right second reset spring 22, at the moment, the right end of the pedal center shaft is locked with the pedal large flywheel 11, the pedal large flywheel 11 can not rotate, and therefore the rear flywheel 12 and the rear wheel are not rotatable together, and the vehicle is locked.
During normal riding: the left key is turned to an opening position, the left lock cylinder shifting block 7 is in a horizontal position, the left first pawl 6 and the left second pawl 8 are separated from the left ratchet wheel 5 due to the pushing movement of the left lock cylinder shifting block 7, and the left end of the pedal center shaft is not limited and can rotate freely. Simultaneously twisting a right key to an opening position, wherein a right lock cylinder shifting block 19 is positioned at a horizontal position, the right lock cylinder shifting block 19 pushes the right two pawls 17 to be separated from the right ratchet wheel 14, the right one pawl 16 is pushed by a right one reset spring 20 to clamp the right ratchet wheel 14, the right end of a pedal center shaft is connected with the pedal large flywheel 11, and the pedal can be driven to rotate by pedaling; when the pedaling is stopped, the pedaling middle shaft 1 and the right ratchet wheel 14 simultaneously stop rotating, at the moment, the pedaling large flywheel 11 and the right pawl 16 rotate clockwise relative to the right ratchet wheel 14 under the drive of the rear flywheel 12, and the right pawl 16 does not limit the right ratchet wheel 14, so that the bicycle can slide.
The conversion function is as follows: the left key is turned to an opening position, the left lock cylinder shifting block 7 is in a horizontal position, the left first pawl 6 and the left second pawl 8 are separated from the left ratchet wheel 5 due to the pushing movement of the left lock cylinder shifting block 7, and the left end of the pedal center shaft is not limited and can rotate freely. Simultaneously twisting a right key to a locking position, wherein a right lock cylinder shifting block 19 is positioned at a vertical position, a right first pawl 16 and a right second pawl 17 are pushed by a right first reset spring 20 and a right second reset spring 22 to clamp a right ratchet wheel 14, the right end of a pedal middle shaft is connected with a pedal big flywheel 11, and the pedal big flywheel 11 can be driven to rotate clockwise by pedaling clockwise, so that the bicycle runs forwards; when the pedals are pedaled anticlockwise, the pedal big flywheel 11 can be driven to anticlockwise rotate, and the bicycle can travel backwards.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The anti-theft bicycle with the variable functions comprises a frame, wheels, a pedal center shaft, a pedal big flywheel, pedals and a rear flywheel, and is characterized in that the bicycle anti-theft device also comprises two groups of ratchet mechanisms;
the left side ratchet mechanism of the ratchet mechanism is arranged at the left end of a pedal center shaft (1) at the frame, and the left side ratchet mechanism is integrally fixed on the frame; the right side ratchet mechanism of the ratchet mechanism is arranged at a pedal large flywheel (11) at the right end of a pedal center shaft (1);
the left ratchet mechanism comprises a left lock body (2), a left ratchet seat cover (3), a left ratchet seat (4), a left ratchet wheel (5), a left first pawl (6), a left second pawl (8), a left lock cylinder shifting block (7), a left first return spring (9) and a left second return spring (10);
the left lock body (2) comprises a locking position and an unlocking position; when the left lock body (2) is in a locking position, the left lock cylinder shifting block (7) is in a vertical position, the left first reset spring (9) and the left second reset spring (10) push the left first pawl (6) and the left second pawl (8) to clamp the left ratchet wheel (5), and the bicycle is in a locking state and cannot be ridden; when the left lock body (2) is in an opening position, the left lock cylinder shifting block (7) is in a horizontal position, the left lock cylinder shifting block (7) pushes the left first pawl (6) and the left second pawl (8) to be separated from the left ratchet wheel (5), and the bicycle is in a ridable state;
the right ratchet mechanism comprises a pedal big flywheel (11), a right ratchet wheel (14), a right ratchet wheel seat (15), a right first pawl (16), a right second pawl (17), a right lock body (18), a right lock cylinder shifting block (19), a right first return spring (20) and a right second return spring (21);
the right side lock body (18) also includes a locking position and an unlocking position; when the left lock body (2) is in an opening position and the right lock body (18) is in a locking position, the right first reset spring (20) and the right second reset spring (21) push the right first pawl (16) and the right second pawl (17) to clamp the right ratchet wheel (14) so that the bicycle is in a fixed gear state and can be ridden reversely; when the left lock body (2) is in an opening position, and simultaneously when the right lock body (18) is in an opening position, the right lock cylinder shifting block (19) is in a horizontal position, the right lock cylinder shifting block (19) pushes the right two pawls (17) to be separated from the right ratchet wheel (14), and the bicycle is in a normal riding state.
2. The antitheft bicycle with variable functions according to claim 1, wherein the left ratchet seat (4) is fixed on the bicycle frame and is of a hollow structure, the left first pawl (6) and the left second pawl (8) are symmetrically arranged on the inner wall of the left ratchet seat (4), one end of the left first pawl is connected with the left ratchet seat (4) and can swing freely, and the other end of the left first pawl is provided with more than one ratchet; the right ratchet wheel seat (15) is fixed on the pedal big flywheel (11) to be of a hollow structure, the right one pawl (16) and the right two pawls (17) are symmetrically arranged inside the right ratchet wheel seat (15), one end of the right one pawl is connected with the right ratchet wheel seat (15) and can swing freely, and more than one ratchet is arranged at one end of the right ratchet wheel seat.
3. The antitheft bicycle with the variable functions according to claim 2, wherein one end of the left first pawl (6) and one end of the left second pawl (8) which are far away from the inner wall of the left ratchet seat (4) are respectively provided with a left first return spring (9) and a left second return spring (10), and one end of the left first return spring (9) and one end of the left second return spring (10) which are far away from the left pawl are connected with the inner wall of the left ratchet seat (4); one end, far away from the inner wall of the right ratchet wheel (14), of the right first pawl (16) and the right second pawl (17) is respectively provided with a right first reset spring (20) and a right second reset spring (21), and one end, far away from the right pawl, of the right first reset spring (20) and the right second reset spring (21) is connected with the inner wall of the right ratchet wheel seat (15).
4. The anti-theft bicycle with variable functions according to claim 1, wherein the left ratchet seat cover (3) is fixedly covered on the left ratchet seat (4), and the middle part of the anti-theft bicycle is sleeved at the left end of the pedal middle shaft (1) and has a certain space with the pedal middle shaft (1) so that the pedal middle shaft (1) can rotate in the anti-theft bicycle; the pedal big flywheel (11) is fixed on the right ratchet seat (15), and the middle part of the pedal big flywheel (11) is sleeved on the right end of the pedal middle shaft (1) and has a certain space with the pedal middle shaft (1) so that the pedal middle shaft (1) can rotate in the pedal middle shaft.
5. The antitheft bicycle with variable functions according to claim 4, wherein the left lock body (2) is arranged on the left ratchet cover (3), and the left lock cylinder shifting block (7) is arranged between the left first pawl (6) and the left second pawl (8); the right lock body (18) is arranged on the pedal big flywheel (11), wherein the right lock cylinder shifting block (19) is positioned between the right first pawl (16) and the right second pawl (17), the right lock cylinder shifting block (19) is arranged to be half of the left lock cylinder shifting block (7), and only the right ratchet two pawls (17) can be jacked when the right lock cylinder shifting block is positioned in a horizontal position.
6. The anti-theft bicycle with variable functions according to claim 1, wherein the left ratchet wheel (5) is directly fixedly sleeved at the left end of the pedal middle shaft (1) and is not movable; the left ratchet seat (4) is arranged at the periphery of the left ratchet wheel (5) and is coaxial with the left ratchet wheel (5); the right ratchet wheel (14) is fixedly sleeved at the right end of the pedal center shaft (1) and is immovable; the right ratchet seat (15) is arranged on the periphery of the right ratchet wheel (14) and is coaxial with the right ratchet wheel (14).
7. The anti-theft bicycle with variable functions according to claim 1, wherein the left end and/or the right end of the pedal center shaft (1) are/is provided with a cube mechanism, and the middle part of the left ratchet seat (4) and/or the right ratchet seat (15) is provided with a square hole matched with the cube and is sleeved on the cube; a spring retainer ring (13) is arranged on the left side of the left ratchet wheel (5) and/or the right side of the right ratchet wheel seat (15) to prevent the left ratchet wheel (5) and/or the right ratchet wheel seat (15) from moving left and right.
8. A variable function anti-theft bicycle according to any one of claims 1 to 7, wherein the left end of the pedal centre shaft (1) is connected with a left pedal connecting rod and a left pedal, and the right end is connected with a right pedal connecting rod and a right pedal.
9. A variable function anti-theft bicycle according to any one of claims 1 to 7, wherein the bicycle rear freewheel (12) is an integral fixed structure with the bicycle rear wheel.
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 CN108297979A (en) | 2018-07-20 |
| CN108297979B true CN108297979B (en) | 2023-08-04 |
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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 |
|---|---|
| CN108297979A (en) | 2018-07-20 |
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