CN110053697A - A kind of electric bicycle anti-lock braking system - Google Patents
A kind of electric bicycle anti-lock braking system Download PDFInfo
- Publication number
- CN110053697A CN110053697A CN201910344989.0A CN201910344989A CN110053697A CN 110053697 A CN110053697 A CN 110053697A CN 201910344989 A CN201910344989 A CN 201910344989A CN 110053697 A CN110053697 A CN 110053697A
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- CN
- China
- Prior art keywords
- brake
- wheel
- hydraulic
- braking
- damper
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/08—Mechanisms specially adapted for braking more than one wheel
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of electric bicycle anti-lock braking system, front-wheel is provided with front wheel speed sensor and front-wheel hydraulic braking disc brake, rear-wheel is provided with rear wheel speed sensor and rear-wheel hydraulic braking butterfly is stopped, damping brake damper is provided between front-wheel and vehicle frame, damping brake damper is connected with hydraulic pump, and left wheel brake parking brake and right wheel braking parking brake are also separately installed on vehicle frame.The invention has the advantages that: damping brake dampers of the present invention to play cushioning effect, plays anti-lock state additionally by damping stroke, hydraulic pump is used to adjust the braking distance and damping force of damping brake damper；Brake pump is respectively that front-wheel hydraulic braking disc brake and rear-wheel hydraulic braking butterfly stop and provide hydraulic coupling, front wheel speed sensor and rear wheel speed sensor are respectively induced preceding wheel speed and rear wheel speed and then feed back to thermoacoustic prime engine device, thermoacoustic prime engine device makes corresponding driving instruction, and left wheel brake parking brake and right wheel braking parking brake are for providing the brake of front and back wheel.
Description
Technical field
The present invention relates to electric bike technical field, especially a kind of electric bicycle anti-lock braking system.
Background technique
With society development, electric bicycle become vast ruck main means of transport, electric bike
Traffic safety be to be related to the safety of each user, since electric bike is usually to use two-wheeled, tire and ground
Face contact area is smaller, in emergency brake, is easy to happen sideslip or risk that body forward is inclined, influences trip peace
Entirely, the other braking mechanism of the prior art is all to be stopped using mechanical, is easy to appear seized situation in this way, and then be easy
Now rollover or slippery conditions.
Therefore, it is necessary to propose a kind of electric bicycle anti-lock braking system in response to the above problems.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a kind of electric bicycle anti-locks
Braking system, it is described above to solve the problems, such as.
A kind of electric bicycle anti-lock braking system, including thermoacoustic prime engine device, front-wheel, rear-wheel and vehicle frame, the front-wheel
It is mounted on the front lower portion of the vehicle frame, the rear-wheel is mounted on the rear lower of the vehicle frame, and the thermoacoustic prime engine device is mounted on vehicle
On frame, the front-wheel is provided with front wheel speed sensor and front-wheel hydraulic braking disc brake, and the rear-wheel is provided with rear wheel speed and passes
Sensor and rear-wheel hydraulic braking butterfly are stopped, and damping brake damper, the damping system are provided between the front-wheel and the vehicle frame
Dynamic damper is connected with hydraulic pump, and the front-wheel hydraulic braking disc brake and the rear-wheel hydraulic braking butterfly, which are stopped, is communicated with braking
It pumps, left wheel brake parking brake and right wheel braking parking brake, the front wheel speed sensor, rear wheel speed is also separately installed on the vehicle frame
Degree sensor, brake pump, hydraulic pump, left wheel brake parking brake and right wheel braking parking brake are electrically connected to the thermoacoustic prime engine device.
Further, the hydraulic pump and brake pump are mounted on the middle position of the vehicle frame.
Further, the damping brake damper includes U-shaped decoupling rod and two damper cylinders, and the U-shaped decoupling rod is sliding
Dynamic to be connected to two damper cylinders, the lower part of the damper cylinder is provided with the bolt hole for being fixedly connected on axle.
Further, the end that the U-shaped decoupling rod is inserted into the damper cylinder is provided with piston, and the U-shaped decoupling rod exists
The top of the piston is set with the first compressed spring, and the second compression is provided between the piston and the bottom of the damper cylinder
Spring.
Further, the side wall top and the bottom of the damper cylinder are respectively connected with the disengaging liquid pipe for being connected to the hydraulic pump
Mouthful, hydraulic shock-absorption oil liquid is filled in the damper cylinder.
Further, the front-wheel hydraulic braking butterfly is stopped and rear-wheel hydraulic braking butterfly is stopped including brake disc and water brake
Device, the hydraulic brake are set to the edge of the brake disc.
Further, the end face of the brake disc is provided with the rubbing hole of multiple annular spreads.
Further, the hydraulic brake include hydraulic cylinder, substrate, the first support, the second support, first brake piece and
Second brake block, first support and the second support layout pitch are fixed on the substrate, and the hydraulic cylinder is fixed on institute
It states on substrate, the first brake piece is fixed on the inside of first support, and the output end of the hydraulic cylinder is through institute
It states the second support and is fixed on second brake block.
Further, first support and the second support are connect with the substrate integral type.
Compared with prior art, the invention has the advantages that: the present invention to be provided with damping brake damper, front-wheel hydraulic braking
Disc brake, rear-wheel hydraulic braking butterfly brake, front wheel speed sensor, rear wheel speed sensor, brake pump, hydraulic pump, left wheel brake hand
It stops and right wheel braking parking brake is electrically connected to the thermoacoustic prime engine device, damping brake damper plays cushioning effect, additionally by
Damping stroke plays anti-lock state, and hydraulic pump is used to adjust the braking distance and damping force of damping brake damper；Brake pump
Respectively front-wheel hydraulic braking disc brake and rear-wheel hydraulic braking butterfly, which are stopped, provides hydraulic coupling, and front wheel speed sensor and rear wheel speed pass
Sensor is respectively induced preceding wheel speed and rear wheel speed and then feeds back to thermoacoustic prime engine device, and thermoacoustic prime engine device is made corresponding driving and referred to
It enables, left wheel brake parking brake and right wheel braking parking brake are for providing the brake of front and back wheel.
Detailed description of the invention
Fig. 1 is electric bicycle anti-lock braking system structure chart provided by the invention；
Fig. 2 is electric bicycle structure figure of the invention；
Fig. 3 is damping brake shock absorber structure figure of the invention；
Fig. 4 is damper cylinder internal structure chart of the invention；
Fig. 5 is hydraulic brake structure chart of the invention；
Fig. 6 is Driven by Hydraulic Cylinder brake block structure figure of the invention.
Appended drawing reference in figure: 1, vehicle frame；2, front-wheel；3, rear-wheel；4, front-wheel hydraulic braking disc brake；41, brake disc；42, liquid
Press brake；43, rubbing hole；401, substrate；402, the first support；403, the second support；404, first brake piece；405, hydraulic
Cylinder；406, the second brake block；5, rear-wheel hydraulic braking butterfly is stopped；6, damping brake damper；601, U-shaped decoupling rod；602, damping
Cylinder；603, bolt hole；604, piston；605, the first compressed spring；606, the second compressed spring；607, liquid in-out nozzle；7, it makes
Dynamic pump；8, front wheel speed sensor；9, rear wheel speed sensor；10, hydraulic pump；11, left wheel brake parking brake；12, right wheel is braked
Parking brake；13, thermoacoustic prime engine device.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Such as Fig. 1 is simultaneously combined shown in Fig. 2 to Fig. 6, a kind of electric bicycle anti-lock braking system, including thermoacoustic prime engine device
13, front-wheel 2, rear-wheel 3 and vehicle frame 1, the front-wheel 2 are mounted on the front lower portion of the vehicle frame 1, and the rear-wheel 3 is mounted on the vehicle
The rear lower of frame 1, the thermoacoustic prime engine device 13 are mounted on vehicle frame 1, and the front-wheel 2 is provided with front wheel speed sensor 8 with before
Take turns hydraulic braking disc brake 4, the rear-wheel 3 is provided with rear wheel speed sensor 9 and rear-wheel hydraulic braking butterfly and stops 5, the front-wheel 2 with
Damping brake damper 6 is provided between the vehicle frame 1, the damping brake damper 6 is connected with hydraulic pump 10, the front-wheel
Hydraulic braking disc brake 4 and rear-wheel hydraulic braking butterfly brake 5 are communicated with brake pump 7, are also separately installed with a left side on the vehicle frame
Wheel braking parking brake 11 and right wheel brake parking brake 12, the front wheel speed sensor 8, rear wheel speed sensor 9, brake pump 7, hydraulic
Pump 10, left wheel brake parking brake 11 and right wheel braking parking brake 11 are electrically connected to the thermoacoustic prime engine device 13.
Preferably, the hydraulic pump 10 and brake pump 11 are mounted on the middle position of the vehicle frame 1.
Preferably, the damping brake damper 6 includes U-shaped decoupling rod 601 and two damper cylinders 602, the U-shaped damping
Bar 601 is slidably connected to two damper cylinders 602, and the lower part of the damper cylinder 602 is provided with for being fixedly connected on axle
On bolt hole 603.
Using above-mentioned preferably technical solution the utility model has the advantages that U-shaped decoupling rod 60 is slidably connected with damper cylinder 602.
Preferably, the end that the U-shaped decoupling rod 601 is inserted into the damper cylinder 602 is provided with piston 604, and the U-shaped subtracts
Shake bar 601 is set with the first compressed spring 605, the piston 604 and the damper cylinder 602 on the top of the piston 604
The second compressed spring 606 is provided between bottom.
Using above-mentioned preferably technical solution the utility model has the advantages that the first compressed spring 605 and the second compressed spring 606 play and subtract
Shake buffer function.
Preferably, the side wall top and the bottom of the damper cylinder 602 are respectively connected with the liquid in-out for being connected to the hydraulic pump 10
Nozzle 607, the damper cylinder 602 is interior to be filled with hydraulic shock-absorption oil liquid.
Using above-mentioned preferably technical solution the utility model has the advantages that hydraulic shock-absorption oil liquid further plays cushioning buffer effect.
Preferably, the front-wheel hydraulic braking butterfly brake 4 and rear-wheel hydraulic braking butterfly stop 5 including brake disc 41 and hydraulic brake
Vehicle device 42, the hydraulic brake 42 are set to the edge of the brake disc 41.
Preferably, the end face of the brake disc 41 is provided with the rubbing hole 43 of multiple annular spreads.
Using above-mentioned preferably technical solution the utility model has the advantages that rubbing hole 43 increases frictional force, braking efficiency is improved.
Preferably, the hydraulic brake 42 include hydraulic cylinder 405, substrate 401, the first support 402, the second support 403,
First brake piece 404 and the second brake block 406, first support 402 and 403 layout pitch of the second support are fixed on the base
On plate 401, the hydraulic cylinder 405 is fixed on the substrate 401, and the first brake piece 404 is fixed on first support
On 402 inside, the output end of the hydraulic cylinder 405 is fixed on second brake block through second support 403
406。
Preferably, first support 402 and the second support 403 are connect with 401 integral type of substrate.
Using above-mentioned preferably technical solution the utility model has the advantages that integral type connection improves bonding strength.
Compared with prior art, the invention has the advantages that: the present invention to be provided with the hydraulic system of damping brake damper 6, front-wheel
Dynamic disc brake 4, rear-wheel hydraulic braking butterfly brake 5, front wheel speed sensor 8, rear wheel speed sensor 9, brake pump 7, hydraulic pump 10, a left side
Wheel braking parking brake 11 and right wheel braking parking brake 12 are electrically connected to the thermoacoustic prime engine device 13, and damping brake damper 6, which plays, to be subtracted
Shake effect plays anti-lock state additionally by damping stroke, and hydraulic pump 10 is used to adjust the braking row of damping brake damper 6
Journey and damping force；Brake pump 7 is respectively that front-wheel hydraulic braking disc brake 4 and rear-wheel hydraulic braking butterfly brake 5 provide hydraulic couplings, preceding wheel speed
Degree sensor 8 and rear wheel speed sensor 9 are respectively induced 2 speed of front-wheel and 3 speed of rear-wheel and then feed back to thermoacoustic prime engine device 13,
Thermoacoustic prime engine device 13 makes corresponding driving instruction, and left wheel brake parking brake 11 and right wheel braking parking brake 12 are for providing front and back wheel
Brake.
Workflow: vehicle in the process of moving, such as needs to brake, and user holds left wheel brake parking brake 11 and right wheel system
Braking instruction is fed back to thermoacoustic prime engine device 13 by brake of starting 12, what front wheel speed sensor 8 and rear wheel speed sensor 9 incuded
Front and back velocity feedback to thermoacoustic prime engine device 13, thermoacoustic prime engine device 13 drives brake pump 7, braking according to velocity variations and braking instruction
The work of 7 driving hydraulic brake 42 of pump, hydraulic brake 42 are uniformly braked according to velocity variations, play anti-lock
Effect.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (9)
1. a kind of electric bicycle anti-lock braking system, including thermoacoustic prime engine device (13), front-wheel (2), rear-wheel (3) and vehicle frame
(1), the front-wheel (2) is mounted on the front lower portion of the vehicle frame (1), the rear-wheel (3) be mounted on the vehicle frame (1) it is rear under
Portion, the thermoacoustic prime engine device (13) are mounted on vehicle frame (1), it is characterised in that: the front-wheel (2) is provided with front-wheel velocity pick-up
Device (8) and front-wheel hydraulic braking disc brake (4), the rear-wheel (3) are provided with rear wheel speed sensor (9) and rear-wheel hydraulic braking butterfly
It stops (5), is provided between the front-wheel (2) and the vehicle frame (1) damping brake damper (6), the damping brake damper
(6) it is connected with hydraulic pump (10), the front-wheel hydraulic braking disc brake (4) and rear-wheel hydraulic braking butterfly brake (5) are communicated with
Brake pump (7) is also separately installed with left wheel brake parking brake (11) and right wheel braking parking brake (12), the preceding wheel speed on the vehicle frame
Spend sensor (8), rear wheel speed sensor (9), brake pump (7), hydraulic pump (10), left wheel brake parking brake (11) and right wheel braking
Parking brake (11) is electrically connected to the thermoacoustic prime engine device (13).
2. a kind of electric bicycle anti-lock braking system as described in claim 1, it is characterised in that: the hydraulic pump (10)
It is mounted on the middle position of the vehicle frame (1) with brake pump (11).
3. a kind of electric bicycle anti-lock braking system as described in claim 1, it is characterised in that: the damping brake subtracts
Shaking device (6) includes U-shaped decoupling rod (601) and two damper cylinders (602), and the U-shaped decoupling rod (601) is slidably connected to two institutes
It states damper cylinder (602), the lower part of the damper cylinder (602) is provided with the bolt hole (603) for being fixedly connected on axle.
4. a kind of electric bicycle anti-lock braking system as claimed in claim 3, it is characterised in that: the U-shaped decoupling rod
(601) end for being inserted into the damper cylinder (602) is provided with piston (604), and the U-shaped decoupling rod (601) is in the piston
(604) top is set with the first compressed spring (605), is set between the piston (604) and the bottom of the damper cylinder (602)
It is equipped with the second compressed spring (606).
5. a kind of electric bicycle anti-lock braking system as described in claim 1, it is characterised in that: the damper cylinder
(602) side wall top and the bottom are respectively connected with for being connected to the hydraulic pump (10 liquid in-out nozzle (607), the damper cylinder
(602) hydraulic shock-absorption oil liquid is filled in.
6. a kind of electric bicycle anti-lock braking system as described in claim 1, it is characterised in that: the hydraulic system of front-wheel
Dynamic butterfly is stopped (4) and rear-wheel hydraulic braking butterfly is stopped, and (5) include brake disc (41) and hydraulic brake (42), the hydraulic brake
(42) it is set to the edge of the brake disc (41).
7. a kind of electric bicycle anti-lock braking system as claimed in claim 6, it is characterised in that: the brake disc (41)
End face be provided with the rubbing holes (43) of multiple annular spreads.
8. a kind of electric bicycle anti-lock braking system as claimed in claim 7, it is characterised in that: the hydraulic brake
It (42) include hydraulic cylinder (405), substrate (401), the first support (402), the second support (403), first brake piece (404) and
Two brake blocks (406), first support (402) and the second support (403) layout pitch are fixed on the substrate (401),
The hydraulic cylinder (405) is fixed on the substrate (401), and the first brake piece (404) is fixed on first support
(402) on inside, the output end of the hydraulic cylinder (405), which is fixed on described second through second support (403), to be stopped
Vehicle piece (406).
9. a kind of electric bicycle anti-lock braking system as claimed in claim 8, it is characterised in that: first support
(402) it is connect with the substrate (401) integral type with the second support (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344989.0A CN110053697A (en) | 2019-04-26 | 2019-04-26 | A kind of electric bicycle anti-lock braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344989.0A CN110053697A (en) | 2019-04-26 | 2019-04-26 | A kind of electric bicycle anti-lock braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110053697A true CN110053697A (en) | 2019-07-26 |
Family
ID=67321023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344989.0A Pending CN110053697A (en) | 2019-04-26 | 2019-04-26 | A kind of electric bicycle anti-lock braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110053697A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202271982U (en) * | 2011-09-19 | 2012-06-13 | 北汽福田汽车股份有限公司 | Antilock system and car |
| GB201402396D0 (en) * | 2014-02-12 | 2014-03-26 | Jaguar Land Rover Ltd | Apparatus and method for use in a vehicle |
| CN104401443A (en) * | 2014-11-27 | 2015-03-11 | 浙江春风动力股份有限公司 | Anti-lock braking system of motorcycle |
| CN204750138U (en) * | 2015-04-03 | 2015-11-11 | 安徽农业大学 | Bicycle anti -lock braking system |
| KR20160082553A (en) * | 2014-12-26 | 2016-07-08 | 경남과학기술대학교 산학협력단 | Brake control method for two-wheeler |
| CN107472212A (en) * | 2015-10-23 | 2017-12-15 | 泉州臻美智能科技有限公司 | A kind of method of work based on hydraulicdriven brake power generating mechanism |
| CN107985495A (en) * | 2017-11-21 | 2018-05-04 | 郑州游爱网络技术有限公司 | A kind of multiple shock-absorbing front fork of electric bicycle |
-
2019
- 2019-04-26 CN CN201910344989.0A patent/CN110053697A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202271982U (en) * | 2011-09-19 | 2012-06-13 | 北汽福田汽车股份有限公司 | Antilock system and car |
| GB201402396D0 (en) * | 2014-02-12 | 2014-03-26 | Jaguar Land Rover Ltd | Apparatus and method for use in a vehicle |
| CN104401443A (en) * | 2014-11-27 | 2015-03-11 | 浙江春风动力股份有限公司 | Anti-lock braking system of motorcycle |
| KR20160082553A (en) * | 2014-12-26 | 2016-07-08 | 경남과학기술대학교 산학협력단 | Brake control method for two-wheeler |
| CN204750138U (en) * | 2015-04-03 | 2015-11-11 | 安徽农业大学 | Bicycle anti -lock braking system |
| CN107472212A (en) * | 2015-10-23 | 2017-12-15 | 泉州臻美智能科技有限公司 | A kind of method of work based on hydraulicdriven brake power generating mechanism |
| CN107985495A (en) * | 2017-11-21 | 2018-05-04 | 郑州游爱网络技术有限公司 | A kind of multiple shock-absorbing front fork of electric bicycle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190726 |
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| RJ01 | Rejection of invention patent application after publication |