CN112092972A

CN112092972A - Electric power assisting device mounted on bicycle pedal

Info

Publication number: CN112092972A
Application number: CN202011208260.XA
Authority: CN
Inventors: 吴凤松; 吴尚灵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-17
Filing date: 2020-11-03
Publication date: 2020-12-18
Anticipated expiration: 2040-11-03

Abstract

The invention discloses an electric power assisting device arranged on a pedal of a bicycle, which comprises a shell, a main bracket, a shock pad, a power assisting unit and a through hole unit which are integrally connected, wherein the through hole unit is fixedly connected with the pedal and is used for assembling the electric power assisting device and the bicycle; the power assisting unit is assembled based on the main support and comprises a battery assembly, a motor wheel, a man-machine interaction assembly, a motor driving controller and an angle speed regulator which are electrically connected; the shock pad is stressed and is pressed downwards to the outer tire of the motor wheel to be in contact with the road surface in parallel, the angle speed regulator senses that the front end of the electric power assisting device inclines upwards, and the motor wheel is driven to roll and rub with the road surface and assists power in the advancing direction of the bicycle. The device has the advantages of integrated and compact structure, simplified appearance and convenient assembly and disassembly with the bicycle pedal; the control mode of utilizing the inclination angle of the pedal plate to regulate the speed is perfected on the basis of keeping the power-assisted function, the anti-loss alarm function is expanded, and the practicability is higher.

Description

Electric power assisting device mounted on bicycle pedal

Technical Field

The invention relates to a bicycle power assisting device, in particular to an electric power assisting device which can be conveniently and quickly installed on a left pedal or a right pedal of a bicycle, and belongs to the field of power assisting travel tools.

Background

The common bicycle electric power assisting device in the market at present has advantages. The existing bicycle electric power assisting device generally adopts a split type design, such as a driving motor unit, a battery unit, a controller and a speed regulator, wherein the speed regulator is connected with each other through a lead and is provided with a fixing part and the like, and the bicycle electric power assisting device is small and exquisite in structure, light and suitable for installation. Weight is lighter for ordinary electric motor car, can loose more and carry, can accomodate in the knapsack even, can install and use on the bicycle when going out the in-process and having the needs of riding instead of walk. The portable bicycle power assisting device for riding instead of walk is used for activities in a range of several kilometers, such as transfer from home to bus station and in a public transport system, and the bicycle can be changed into an electric bicycle by the bicycle electric power assisting device in a few minutes, so that the time and labor of a user are saved.

However, the existing bicycle power assisting device still has a plurality of defects. Particularly, although the conventional bicycle power assisting device is light and convenient to carry and install, the mounting and the operation of the conventional bicycle power assisting device are still unsatisfactory.

The Chinese patent application (application number: 201310668191.4) discloses a bicycle power assisting device which is quite cumbersome to install and carry in daily life and has quite limited functional effects. How to provide an integrated bicycle power assisting device with small volume, easy installation and multiple use functions becomes a problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electric power assisting device mounted on a bicycle pedal, so as to achieve an integrated assembly, easy installation and use, and a bicycle power assisting device with rich functions.

The invention realizes the technical scheme that the electric power assisting device arranged on the bicycle pedal is characterized by comprising a shell, a main bracket, a shock pad, a power assisting unit and a through hole unit which are integrally connected, wherein the shock pad is fixedly connected to the top surface of the shell, the main bracket is internally connected into the shell, the middle section of the main bracket is provided with a through cavity forming the through hole unit, and the side of the through hole unit is provided with an anti-misoperation protection switch for accessing a signal into the power assisting unit; the power assisting unit is assembled based on the main support and comprises a battery assembly, a motor wheel, a man-machine interaction assembly, a motor driving controller and an angle speed regulator which are electrically connected; the electric power assisting device is sleeved with a bicycle pedal based on the through hole unit, the damping pad is pressed to the outer tire of the motor wheel in parallel to be in contact with the road surface, the angle speed regulator senses that the front end of the electric power assisting device inclines upwards, and the motor wheel is driven to roll and rub with the road surface and assists power in the advancing direction of the bicycle.

The electric power assisting device is characterized in that the through hole unit comprises a first clamping ring and a second clamping ring which are fixedly spliced based on two ends of a through cavity, the two clamping rings are provided with U windows close to the side faces of the motor wheels and spliced to form an accommodating groove, anti-skidding rubber pads are arranged on the inner top faces and the inner bottom faces of the two clamping rings, the body of the anti-misoperation protection switch is a first magnetic switch fixed in the main support, a pressing plate elastic piece of the anti-misoperation protection switch is provided with a magnetic block towards the side wall of the body, the pressing plate elastic piece is bent in an arc shape and is exposed in the through hole unit from the accommodating groove, the magnetic block is separated from the first magnetic switch, and the first magnetic switch sends a rotation stopping protection signal to the power; the pressing plate elastic sheet is extruded by the bicycle pedal to be straightened in the accommodating groove, the magnetic block is contacted with the first magnetic switch, and the first magnetic switch stops sending the rotation stopping protection signal.

Above-mentioned electric power assisting device, preferably, the main support is rigidity integrated into one piece spare, and the main support distribution is equipped with and runs through the chamber, be used for battery pack assembly connection's first appearance chamber, be used for preventing maloperation protection switch assembly connection's second appearance chamber and be used for motor wheel assembly connection's the curved type of the falling arc appearance chamber and motor support, wherein first appearance chamber distribution is equipped with towards battery pack, the first draw-in groove of angle governor grafting assembly, the second holds the top that chamber and the curved type of the falling arc appearance chamber and is equipped with towards the second draw-in groove of motor drive controller grafting assembly, the curved type of the falling arc holds the bottom that holds the chamber and is equipped with towards the third draw-in groove of motor support grafting assembly, and the curved type of the falling arc appearance chamber is kept away from the one end that runs.

In the above electric power assisting device, preferably, the angle speed regulator is assembled by a first vertical base plate, a first rotating bracket, a first magnet and a 49E hall sensor, wherein the first vertical base plate is mounted on the main bracket and positioned in a first clamping groove on one side of the main bracket opposite to the bottom of the through cavity, a first limiting edge is arranged on one vertical side of the first vertical base plate away from the motor wheel, the first rotating bracket is hung on the first vertical base plate and suspended near the top of the first limiting edge, and the bottom end of the first rotating bracket is connected with the first magnet; the 49E Hall sensor is connected to the position close to the bottom of the first vertical base plate, the first rotary support is positioned by the first limiting edge in the horizontal state of the electric power assisting device, the front end of the electric power assisting device is in an upward inclined state, the first magnet rotates along with the first rotary support within an adjustable angle range, the 49E Hall sensor senses the distance change relative to the first magnet and outputs a sensing signal for speed regulation to the motor driving controller, and the 49E Hall sensor is at least one of OH49E, S49E and SS49E linear Hall switches.

In the above electric power assisting device, it is further preferable that the power assisting unit is provided with an anti-rotation/misrotation device composed of a second vertical base plate, a second rotating bracket, a second magnet, and a second magnetic switch, wherein the second vertical base plate is mounted on the main bracket and positioned in a first clamping groove on one side of the main bracket opposite to the bottom of the through cavity, a second limiting edge is arranged on one vertical side of the second vertical base plate away from the motor wheel, the second rotating bracket is hung on the second vertical base plate and hangs near the top of the second limiting edge, and the bottom end of the second rotating bracket is connected with the second magnet; the second magnetic switch is connected to one side of the second vertical substrate far away from the second limiting edge, the second magnet is separated from the second magnetic switch, the second magnetic switch sends a pause signal to the power assisting unit, the second magnet is in contact with the second magnetic switch, the second magnetic switch sends a rotation stopping protection signal to the power assisting unit, and the swinging amplitude of the second rotary support is larger than that of the first rotary support.

In the above electric power-assisted device, preferably, the angle governor is assembled by a housing, a cover plate, a sliding bracket, a 49E hall sensor, a magnet, and a gravity-assisted sliding ball, wherein the casing, the cover plate and the 49E Hall sensor are fixedly arranged in a cavity of the main bracket corresponding to the bottom of the through cavity for positioning, the sliding bracket positioned in the casing slides linearly on the cover plate, a square hole matched with the gravity-assisted sliding ball body to roll is arranged in the sliding support, magnets are respectively embedded at the two ends of the top of the sliding support opposite to the 49E Hall sensor, the gravity-assisted sliding ball body rolls from a high position to a low position in a range of 360 degrees in a three-dimensional orthogonal axial direction and drives the sliding support to slide, the 49E Hall sensor senses the distance change relative to the magnet and outputs a sensing signal for speed regulation to the motor driving controller, wherein the 49E Hall sensor is at least one of OH49E, S49E and SS49E linear Hall switches.

In the above electric power assisting device, preferably, the assisting unit is further provided with an auxiliary power supply 5V module inserted into the second slot, the battery assembly includes a battery pack, a connection frame and a battery protection board, wherein positive and negative bus terminals of the battery pack are connected to the human-computer interaction assembly of the assisting unit through the battery protection board, and are connected to the motor drive controller and the auxiliary power supply 5V module via the human-computer interaction assembly in a shunt manner, and the connection frame is connected to the first slot in the main support in an installation manner.

In the above electric power assisting device, preferably, the motor wheel is attached to a motor support provided in the main support and electrically connected to the motor drive controller, and an outer tire is sleeved on an outer ring of the motor wheel.

The electric power assisting device preferably further comprises a front panel and a rear panel which are integrally connected with the shell and the main support, wherein the outer end wall surface of the main support, which faces the front panel, is provided with an LED lamp panel with a signal access man-machine interaction component controlled switch, and the front panel is fixedly connected with the outer end wall surface in a clamping manner and is light-transmitting corresponding to the LED lamp panel; the human-computer interaction assembly at least comprises a voltage and allowance display module, a charging interface, a USB power taking interface and a power switch, the rear end panel is provided with a transparent window, an interface hole and a button part corresponding to the human-computer interaction assembly, the bottom side of the rear end panel is fixed with the main support in a threaded mode, and the top side of the rear end panel is fixed with the shell in a threaded mode.

Above-mentioned electric power assisting device, further preferably, be equipped with in the human-computer interaction subassembly and prevent losing warning module and debugging button thereof, and prevent losing the warning module and pair with user's bluetooth of mobile phone and be connected.

The electric power assisting device has the prominent substantive characteristics and remarkable progress: the device has the advantages of integrated and compact structure, light weight, simplified appearance, convenient and efficient assembly and disassembly operation with the bicycle pedal; the device perfects the control mode of utilizing running-board inclination angle speed governing on keeping helping hand function to the expansion has the alarming function of preventing losing, has stronger practicality.

Drawings

Fig. 1 is a schematic perspective view of the electric power assisting device of the present invention assembled to a bicycle in a rear riding state.

Fig. 2 is a schematic perspective view of an electric booster assembly according to the present invention.

Fig. 3 is a partially separated perspective view of the electric booster of the present invention.

Fig. 4 is a side view of a separated structure of a preferred embodiment of the electric power assist apparatus of the present invention.

Fig. 5 is a perspective view of the assembly of a side member according to the embodiment of fig. 4.

Fig. 6 is a perspective view of the assembled side member of the embodiment of fig. 4.

Fig. 7 is a schematic diagram of a detailed structure of an angle governor in another embodiment of the electric power assist apparatus of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of understanding and controlling the technical solutions of the present invention, so as to define the protection scope of the present invention more clearly.

The invention provides an electric power assisting device arranged on a pedal of a bicycle, which aims at the defects of the existing bicycle power assisting device in the aspects of assembly structure, functional perfection and the like, researches and innovations are carried out by the assembling usability of all original parts of the bicycle and the position where power assistance can be applied, and the invention also provides the electric power assisting device. The structure of the device is beneficial to a user to complete the assembly and the use with the bicycle in a very short time, and can safely, reliably and relatively durably provide the advancing assistance for the bicycle.

Referring to fig. 1 to 6, the electric power assist apparatus is shown in a schematic perspective view, a schematic overall assembled perspective view, a partially disassembled perspective view and a side view of a rear riding state of the bicycle, and a schematic assembly view of components on different sides. In view of the outlined structural features, the electric booster mounted on a pedal of a bicycle includes a housing 2, a main bracket 3, a cushion 4, a booster unit 6, and a through-hole unit 5, which are integrally assembled. The shock pad 4 is fixedly connected to the top surface of the shell 2, the shell 2 is provided with a through hole 21 corresponding to the through hole unit for mounting and positioning, the main support 3 is internally connected in the shell 2, the middle section of the main support 3 is provided with a through cavity 31 forming the through hole unit, and the side of the through hole unit 4 is provided with an anti-misoperation protection switch 53 of the signal access assisting unit; the power assisting unit 6 is assembled based on the main support 3 and comprises a battery assembly 61, a motor wheel 62, a man-machine interaction assembly 63, a motor driving controller 64 and an angle speed regulator 65 which are electrically connected; the electric power assisting device DLZLZZ is sleeved with the bicycle pedal 12 on the basis of the through hole unit 5, and is parallelly pressed to the outer tire 621 of the motor wheel 62 to be contacted with the road surface through the stress of the shock pad, the front end of the electric power assisting device is induced to incline upwards by the angle speed regulator 65, and the motor wheel 62 is driven by the motor driving controller 64 to be in rolling friction with the road surface and assist in the advancing direction of the bicycle.

For a more complete understanding of the foregoing summary, reference is now made to the following brief description, taken in connection with the accompanying drawings, in which: the bicycle 1 as shown in fig. 1 typically has a left and right pair of

pedals

11, 12. The electric power assisting device can be connected with any one pedal independently, and can also be used for synchronously connecting and replacing the two pedals for assisting. When the pedal with the electric power assisting device arranged on any side is stepped downwards and the outer tire is in contact with the road surface, the assisting force in the advancing direction can be provided through the angle speed regulator; and the electric power assisting device on the other side can continue to assist the force after the foot is changed. As shown in fig. 2, the electric power assisting device is integrally assembled, and parts of the electric power assisting unit are assembled in the main bracket and the housing, so that dustproof and waterproof security is effectively realized. As can be seen from fig. 1 and 3, the through hole unit 6 is designed to facilitate the assembly and connection of the device with the pedal, so as to satisfy various pedals with smaller size difference compared with standard pedals, and without additional fasteners such as screws. Moreover, each part of the components of the power assisting unit is reasonably distributed based on the main support surrounding the through hole unit, and the modular embedded connecting structure improves the space utilization rate, ensures the connecting strength and stability of each component, and improves the anti-misoperation protection function pertinently.

In view of the further refinement and optimization features of the units and the components, as shown in fig. 3, the through-hole unit 5 includes a first collar 51 and a second collar 52 that are fixed by splicing at two ends of the through-cavity 31, and a U-window 521 (the collar at the other side is not completely shown) is opened on the side surface of the second collar 52 at one side close to the motor wheel 62, the two collars are spliced to form an accommodating groove 512, and the inner top surfaces and the inner bottom surfaces of the two collars are provided with anti-skid rubber pads 54. The anti-slip rubber pad can be directly adhered to the inner wall of the clamping ring, but the anti-slip rubber pad is difficult to avoid the problem of falling off after long-term use or environmental influence. In the illustrated embodiment, the two top and bottom surfaces of the two collars are both provided with the through holes, the anti-slip rubber pad is of a sheet structure with a smooth single surface and discretely distributed convex ribs on the other surface, and the anti-slip rubber pad is clamped between the collars and the through cavities in a manner that the smooth surfaces are opposite to the inner walls of the through cavities. From this when the through-hole unit equipment completion back, the fin is worn out the fretwork hole and is protruding to expose in the space of through-hole unit, can prolong the life of anti-skidding cushion to the running-board that reliably ensures to cup joint reduces the risk of droing. As shown in fig. 6, the main body of the anti-misoperation protection switch 53 is the first magnetic switch 531 and is fixed in the main support 3, and the pressing plate spring piece 532 of the anti-misoperation protection switch 53 is provided with a magnetic block 533 towards the side wall of the main body, and the pressing plate spring piece 532 is curved in an arc shape and protrudes from the accommodating groove 512 to be exposed in the through hole unit. In this state, the magnetic block 533 is separated from the first magnetic switch 531, and the first magnetic switch 531 sends a rotation stop protection signal to the power assisting unit 6. Thus, when the electric power assisting device is not assembled on a bicycle pedal, the rotation of the motor wheel caused by abnormal power starting can be avoided, so that the automatic operation of equipment or the injury of personnel can be caused, and only when the device is assembled on the bicycle pedal, the pressing plate elastic sheet 532 is extruded by the bicycle pedal and straightened in the accommodating groove 512, the magnetic block 533 is contacted with the first magnetic switch 531, the first magnetic switch 531 pauses to send a rotation stopping protection signal, so that the power assisting function can be normally realized.

The main support 3 is a rigid integrally-formed part, the main support 3 is provided with a through cavity 31, a first accommodating cavity 32 for assembling and connecting the battery component 61, a second accommodating cavity 33 for assembling and connecting the anti-misoperation protection switch 53, an inverted arc-shaped accommodating cavity 34 for assembling and connecting the motor wheel and the motor support 36, the first accommodating cavity 32 is provided with a first clamping groove 321 facing the battery component 61 and the angle speed regulator 65 in a splicing mode, the tops of the second accommodating cavity 33 and the inverted arc-shaped accommodating cavity 34 are provided with a second clamping groove 341 facing the motor driving controller 64 in a splicing mode, the bottom of the inverted arc-shaped accommodating cavity 34 is provided with a third clamping groove 342 facing the motor support 36 in a splicing mode, and one end, far away from the through cavity 31, of the inverted arc-shaped accommodating cavity 34 is arranged to be a carrier 35 facing the human-computer interaction component 63 in an assembling. Therefore, the battery assembly, the motor wheel, the motor driving controller, the auxiliary power supply 5V module, the human-computer interaction assembly, the anti-misoperation protection switch and the like are separated from each independent space of the main bracket, so that mutual damage caused by mutual collision is avoided, and the whole assembly is shaken without noise; thereby adapting to the requirement of the bicycle to run on a bumpy road.

From the aspect of speed control of electric power assistance, the invention adopts the inclination of the device to realize speed regulation. Specifically, the angle governor 65 is assembled by a first vertical base plate 651, a first rotating bracket 652 and first magnets 653, 49E hall sensors 654, wherein the first vertical base plate 651 is mounted on the main bracket 3 and positioned in a first slot 321 on the side opposite to the bottom of the through cavity 31, a first limit rib 655 is arranged on the vertical side of the first vertical base plate 651 away from the motor wheel 62, the first rotating bracket 652 is hung on the first vertical base plate 651 and suspended near the top of the first limit rib 655, and the bottom end of the first rotating bracket 652 is connected with the first magnet 653; the 49E hall sensor 654 is connected to the bottom of the first vertical substrate 651. In the horizontal state of the electric power assisting device, the first rotating bracket 652 is positioned by relying on the first limiting rib 655, and at the moment, the motor wheel does not rotate and output. As the front end of the electric booster is tilted upward, the first rotating bracket 652 is suspended, and the first magnet 653 rotates within the adjustable angle range. The 49E hall sensor 654 senses a distance change relative to the magnet 653 and outputs a sensing signal for speed regulation to the motor drive controller 64, wherein the 49E hall sensor 654 is at least one of the OH49E, S49E, and SS49E linear hall switches.

In practical applications, when the electric power assisting device is attached to a bicycle pedal, the weight difference exists more or less in the front-back direction of the device, especially on the rear side where the motor wheel is located. Therefore, when the shock pad is not trampled to apply force, the device is easy to automatically overturn due to the tilting of the front end, and when the anti-misoperation protection switch 53 is in a state of suspending to send a rotation-stopping protection signal, the motor wheel is accidentally driven to rotate under the condition of the induction inclination of the angle speed regulator, so that the uncontrolled scenes of automatic running, overturning and the like of the bicycle are caused. To this end, the invention contemplates the introduction of further safety measures to add a safety margin to the speed sensing zone of the angle governor. Specifically, as shown in fig. 5, the power assisting unit 6 is provided with an anti-rotation error device 67 which is composed of a second vertical substrate 671, a second rotating bracket 672, a second magnet 673 and a second magnetic switch 674, wherein the second vertical substrate 671 is mounted in the first clamping groove 321 on one side of the main bracket 3 opposite to the bottom of the through cavity 31 for positioning, a second limit rib 675 is arranged on one vertical side of the second vertical substrate 671 far away from the motor wheel 62, the second rotating bracket 672 is hung on the second vertical substrate 671 near the second limit rib 675, and the bottom end part of the second rotating bracket is connected with the second magnet 673; the second magnetic switch 674 is connected to the side of the second vertical substrate 671 away from the second limit rib 675. When the electric booster is in a horizontal state or in a tilted state in the speed regulation zone, the second magnet 653 is separated from the second magnetic switch 654, and the second magnetic switch 654 faces the booster unit without signal transmission, that is, in a function suspension state. When the electric assist apparatus is tilted beyond the maximum assist speed range, the second magnet is brought into contact with the second magnetic switch 654, and the second magnetic switch 654 sends a rotation stop protection signal to the assist unit, causing the motor drive controller 64 to stop continuing drive to the motor wheel 62. As can be seen from the figure, the first rotating bracket and the second rotating bracket synchronously rotate along with the inclination of the electric power assisting device, and only the swinging amplitude d2 of the second rotating bracket is larger than the swinging amplitude d1 of the first rotating bracket. Two runing rest do not have under the signal transmission prerequisite of touching at the ware of preventing mistake commentaries on classics under can swinging range d1 state, only possess helping hand speed governing function, and when first runing rest is spacing in can swinging range d1, second runing rest break through and reach can swinging range d2, have prescribed a limit to by this mistake of preventing commentaries on classics ware motor wheel driven pivoted angle scope, have improved the security performance of device.

The boosting unit 6 is further provided with an auxiliary power supply 5V module 641 inserted into the second card slot 341; the battery assembly 61 includes a battery pack 611, a connection frame 612 and a battery protection board 613, wherein positive and negative bus terminals of the battery pack 611 are connected to the human-computer interaction assembly 63 of the power assisting unit through the battery protection board 613, the human-computer interaction assembly 63 is connected to the motor driving controller 64 and the auxiliary power supply 5V module 641 in a shunting manner, and the connection frame 612 is connected to the first slot 321 in the main support 3. The motor drive controller is normally connected with a power supply voltage of about 36V and 48V; the auxiliary power supply 5V module 641 is added to the portable electronic device for charging the portable electronic device. Therefore, the electric power assisting device has the function of reversely charging the outside through the USB power taking interface.

The motor wheel 62 is attached to the motor bracket 36 provided in the main bracket 3, and both ends are fixed by a nut. The drive end (not shown) of the motor wheel 62 is electrically connected to the motor drive controller 64. And the outer ring of the motor wheel 62 is sleeved with an outer tire 621 to increase the friction force with the road surface, and the outer tire can be a solid rubber tire or an inflatable rubber tire.

Further, the electric booster includes a front panel 7 and a rear panel 8 integrally attached to the housing 2 and the main stand 3. Wherein this main support 3 is adorned the LED lamp plate 9 that has signal access man-machine interaction subassembly controlled switch just to the outer end wall of front end panel, and front end panel 7 is fixed and is corresponding the LED lamp plate printing opacity with the outer end wall joint. As the auxiliary function of the bicycle night driving road illumination, the LED lamp panel can adopt the finished product parts densely covered with more than 10 LED lamp beads to be directly attached and fixed on the outer end wall, and the outer end wall and the front end panel are fixedly connected through a buckle or a clamping groove, the whole front end panel is smooth and concise, and the front end panel can be a whole transparent or partially light-shading organic glass cover plate or a plastic cover plate of a specific region.

Moreover, the human-computer interaction component 63 at least includes a voltage and residual amount display module 631, a charging interface 632, a USB power-taking interface 633 and a power switch 634, and of course, in the illustrated preferred embodiment, a loss prevention alarm module 635 and a debugging key 6351 thereof are further provided. And the rear panel 8 is provided with a transparent window, an interface hole, a button part and a soft rubber dustproof sleeve 81 which is corresponding to the interface hole and is daily shielded by the man-machine interaction component. The rear end panel corresponds equipment back user and can see through this rear end panel and master electric power assisting device's electric energy surplus with the man-machine interaction subassembly, carries out the device and charges, removes treasured, on-off control that charges, prevents losing controls such as debugging. Unlike the attaching structure and manner of the front panel 7, which requires high assembling strength because it corresponds to the integrated area of the main electric components, the main bracket 3 is provided with a plugging groove and an attaching hole at the end of the carrier 35, the bottom side of the rear panel 8 is assembled with the plugging groove and fixed with the main bracket by screw, and the top side is also fixed with the housing 2 by screw. The anti-loss alarm module 635 is connected with the mobile phone Bluetooth of the user in a matching mode, after the user is matched with the electric power assisting device through the mobile phone Bluetooth, positioning can be provided for the user within a short distance and under an allowable condition when the user is lost, and an effective way for the user to get back is provided for prompting that the electric power assisting device is lost through an alarm.

In addition to the above preferred embodiments, there are other various alternative embodiments as an essential component of the speed control in the electric booster. Also taking angular speed control as an example, as shown in fig. 7, the angular speed controller 66 is assembled by a housing 661, a cover 662, a slide holder 663, a 49E hall sensor 664, a magnet 665, and a gravity sliding ball 666. Wherein the housing 661, the cover plates 662 and 49E hall sensors 664 are fixedly attached to the main support 3 in a position corresponding to the cavity through the bottom of the cavity, and the sliding support 663 located in the housing 661 slides linearly on the cover plate 662. And a square hole 6631 matched with the gravity sliding assisting ball 666 to roll is arranged in the sliding support 663, and magnets 665 are respectively embedded at the two ends of the top of the sliding support 663 opposite to the 49E Hall sensor 664. Because the whole electric power assisting device inclines along with the change of the gravity center falling point of the pedal, the gravity assisting sliding ball 666 rolls from a high position to a low position in a range of 360 degrees in a three-dimensional orthogonal axial direction and drives the sliding support 663 to slide, and the 49E Hall sensor 664 senses the distance change relative to the magnet 665 and outputs a sensing signal for speed regulation to the motor driving controller 64. Similarly, the 49E Hall sensor 664 has multiple switch types for selection.

In summary, the scheme introduction and the embodiment detailed description of the electric power assisting device loaded on the bicycle pedal of the invention can be seen, and the scheme has prominent substantive features and remarkable progress: the device has the advantages of integrated and compact structure, light weight, simplified appearance, convenient and efficient assembly and disassembly operation with the bicycle pedal; the device perfects the control mode of utilizing running-board inclination angle speed governing on keeping helping hand function to the expansion has the alarming function of preventing losing, has stronger practicality.

In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations are within the scope of the present invention as claimed.

Claims

1. An electric power assisting device arranged on a pedal of a bicycle is characterized by comprising a shell, a main support, a shock pad, a power assisting unit and a through hole unit which are integrally connected, wherein the shock pad is fixedly connected to the top surface of the shell, the main support is internally connected in the shell, a through cavity forming the through hole unit is arranged in the middle section of the main support, and a misoperation preventing protection switch for accessing a signal to the power assisting unit is arranged beside the through hole unit; the power assisting unit is assembled based on the main support and comprises a battery assembly, a motor wheel, a man-machine interaction assembly, a motor driving controller and an angle speed regulator which are electrically connected; the electric power assisting device is sleeved with a bicycle pedal based on the through hole unit, the damping pad is pressed to the outer tire of the motor wheel in parallel to be in contact with the road surface, the angle speed regulator senses that the front end of the electric power assisting device inclines upwards, and the motor wheel is driven to roll and rub with the road surface and assists power in the advancing direction of the bicycle.

2. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the through hole unit comprises a first clamping ring and a second clamping ring which are spliced and fixed based on two ends of a through cavity, the two clamping rings are provided with U windows on the side surfaces close to the motor wheels and spliced to form an accommodating groove, anti-skidding rubber pads are arranged on the top surfaces and the bottom surfaces of the inner sides of the two clamping rings, the body of the anti-misoperation protection switch is a first magnetic switch fixed in the main support, a magnetic block is arranged on the side wall, facing the body, of a pressing plate elastic sheet of the anti-misoperation protection switch, the pressing plate elastic sheet is bent in an arc shape and is exposed in the through hole unit from the accommodating groove, the magnetic block is separated from the first magnetic switch, and the first magnetic switch sends a rotation stopping; the pressing plate elastic sheet is extruded by the bicycle pedal to be straightened in the accommodating groove, the magnetic block is contacted with the first magnetic switch, and the first magnetic switch stops sending the rotation stopping protection signal.

3. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the main support is rigidity integrated into one piece spare, and the main support distribution is equipped with and runs through the chamber, a first appearance chamber that is used for battery pack erection joint, a second appearance chamber that is used for preventing maloperation protection switch erection joint holds chamber and motor support that is used for motor wheel erection joint, wherein first appearance chamber distribution is equipped with towards battery pack, the first draw-in groove of angle speed regulator grafting assembly, the second holds the top that chamber and the curved type appearance chamber of arc are equipped with towards the second draw-in groove of motor drive controller grafting assembly, the curved type bottom that holds the chamber of arc is equipped with towards the third draw-in groove of motor support grafting assembly, and the curved type appearance chamber of arc keeps away from the one end that runs through the chamber and establish as the carrier frame towards man-machine interaction subassembly erection joint.

4. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the angle speed regulator is formed by assembling a first vertical base plate, a first rotating support, a first magnet and a 49E Hall sensor, wherein the first vertical base plate is arranged in a first clamping groove on one side of the main support, which is opposite to the bottom of the through cavity, for positioning, a first limiting edge is arranged on one side of the first vertical base plate, which is far away from the vertical direction of the motor wheel, the first rotating support is hung on the first vertical base plate, which is close to the top of the first limiting edge, and the bottom end of the first rotating support is connected with the first magnet; the 49E Hall sensor is connected to the position close to the bottom of the first vertical base plate, the first rotary support is positioned by the first limiting edge in the horizontal state of the electric power assisting device, the front end of the electric power assisting device is in an upward inclined state, the first magnet rotates along with the first rotary support within an adjustable angle range, the 49E Hall sensor senses the distance change relative to the first magnet and outputs a sensing signal for speed regulation to the motor driving controller, and the 49E Hall sensor is at least one of OH49E, S49E and SS49E linear Hall switches.

5. An electric booster according to claim 4 mounted on a bicycle pedal, wherein: the power assisting unit is provided with an anti-misoperation device consisting of a second vertical base plate, a second rotating support, a second magnet and a second magnetic switch, wherein the second vertical base plate is arranged in a first clamping groove which is formed in the main support and relatively penetrates through one side of the bottom of the cavity to be positioned, a second limiting edge is arranged on one vertical side of the second vertical base plate, which is far away from the motor wheel, the second rotating support is hung on the second vertical base plate, is close to the top of the second limiting edge, and is suspended, and the bottom end of the second rotating support is connected with the second magnet; the second magnetic switch is connected to one side of the second vertical substrate far away from the second limiting edge, the second magnet is separated from the second magnetic switch, the second magnetic switch sends a pause signal to the power assisting unit, the second magnet is in contact with the second magnetic switch, the second magnetic switch sends a rotation stopping protection signal to the power assisting unit, and the swinging amplitude of the second rotary support is larger than that of the first rotary support.

6. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the angle speed regulator is formed by assembling a machine shell, a cover plate, a sliding support, a 49E Hall sensor, a magnet and a gravity sliding ball body, wherein the machine shell, the cover plate and the 49E Hall sensor are fixedly arranged in a cavity of a main support, the cavity is opposite to the bottom of a through cavity, the main support is positioned in the cavity, the sliding support in the machine shell slides linearly on the cover plate, a square hole matched with the gravity sliding ball body to roll is formed in the sliding support, the magnet is respectively embedded at the top of the sliding support, opposite to the two ends of the 49E Hall sensor, the magnet is embedded at the top of the sliding support, the gravity sliding ball body rolls from a high position to a low position in a 360-degree range of a three-dimensional orthogonal axial direction and drives the sliding support to slide, the 49E Hall sensor senses the distance change of the opposite magnet and outputs a sensing signal for speed regulation to a motor driving controller, and the 49E Hall.

7. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the power assisting unit is further provided with an auxiliary power supply 5V module which is inserted into the second clamping groove in an inserting mode, the battery assembly comprises a battery pack, a wiring frame and a battery protection plate, positive and negative bus terminals of the battery pack are connected into the man-machine interaction assembly of the power assisting unit through the battery protection plate, the man-machine interaction assembly is connected into the motor driving controller and the auxiliary power supply 5V module in a shunting mode, and the wiring frame is connected with the first clamping groove in the main support in an installing mode.

8. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the motor wheel is arranged on a motor support arranged in the main support and is electrically connected with the motor drive controller, and the outer ring of the motor wheel is sleeved with the outer tire.

9. An electric booster according to claim 1 mounted on a bicycle pedal, wherein: the LED lamp panel is connected with the outer end wall surface of the main support, which is opposite to the front end panel, of the controlled switch of the signal access man-machine interaction assembly, and the front end panel is fixedly connected with the outer end wall surface in a clamping mode and is transparent to light corresponding to the LED lamp panel; the human-computer interaction assembly at least comprises a voltage and allowance display module, a charging interface, a USB power taking interface and a power switch, the rear end panel is provided with a transparent window, an interface hole and a button part corresponding to the human-computer interaction assembly, the bottom side of the rear end panel is fixed with the main support in a threaded mode, and the top side of the rear end panel is fixed with the shell in a threaded mode.

10. An electric booster according to claim 1 or 9 mounted on a bicycle pedal, wherein: the man-machine interaction assembly is provided with an anti-loss alarm module and a debugging key thereof, and the anti-loss alarm module is connected with the mobile phone Bluetooth of a user in a matching manner.