CN209938843U

CN209938843U - Electric bicycle

Info

Publication number: CN209938843U
Application number: CN201920712734.0U
Authority: CN
Inventors: 刘恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-01-14
Anticipated expiration: 2029-05-17

Abstract

The embodiment of the utility model discloses electric bicycle relates to bicycle technical field. The handlebar sets up at main frame body front end and is connected with the front wheel through the front fork, the rear wheel passes through the back vent setting in the rear side of main frame body, the upside of main frame body sets up the saddle, main frame body lower extreme is equipped with interconnect's running-board and pedal crank, pedal crank passes through sprocket chain and connects the rear wheel, and sprocket chain still is connected with driving motor, be equipped with preceding bumper shock absorber on the front fork, main frame body upper portion is equipped with auxiliary supporting beam be equipped with the rear shock absorber between auxiliary supporting beam and the back vent. Increased auxiliary supporting beam on the basis of main frame body, the weight that can bear is bigger, has set up preceding bumper shock absorber and rear shock absorber respectively moreover, increases the steadiness, and is safer, comfortable, both can go through running-board driving sprocket chain moreover, also can go through driving motor, and trafficability characteristic is good, makes to ride more laborsavingly, and convenient crowd is also many.

Description

Electric bicycle

Technical Field

The embodiment of the utility model provides an embodiment relates to bicycle technical field, concretely relates to electric bicycle.

Background

The bicycle is the main vehicle of solving city jam and remote area at present, and the bicycle is also the important instrument that people took exercise the health and played simultaneously, especially mountain bike, receives liking of outdoor exercises fan deeply.

The front beam of the existing electric bicycle is unstable, easy to break and unsafe to ride, and the riding mountain road section is more laborious, the support rod shakes seriously, and the riding personnel are uncomfortable to sit.

Disclosure of Invention

Therefore, the embodiment of the present invention provides an electric bicycle to solve the problems of unsafe riding and uncomfortable riding caused by the instability of the front beam in the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to the utility model discloses an on the one hand, this electric bicycle includes main frame body, front wheel, rear wheel, sprocket chain and auxiliary supporting beam, the handlebar sets up and is connected with the front wheel at main frame body front end and through the front fork, the rear wheel passes through the rear fork setting in the rear side of main frame body, the upside of main frame body sets up the saddle, main frame body lower extreme is equipped with interconnect's running-board and pedal crank, pedal crank passes through sprocket chain and connects the rear wheel, and sprocket chain still is connected with driving motor, driving motor connects, be equipped with the speed regulator of connecting driving motor on the handlebar, be equipped with front shock absorber on the front fork, auxiliary supporting beam sets up on main frame body upper portion be equipped with rear shock absorber between auxiliary supporting beam and the rear fork.

Furthermore, the main frame body comprises an upper cross beam, a front longitudinal beam and a rear longitudinal beam, the upper end of the front longitudinal beam is connected with the front end of the upper cross beam through a fixed shaft sleeve, the upper portion of the rear longitudinal beam is fixedly connected with the rear end of the upper cross beam, the front longitudinal beam is mutually connected with the lower end of the rear longitudinal beam, the seat is fixed at the upper end of the rear longitudinal beam, the front end of the auxiliary supporting beam is fixedly connected with the front longitudinal beam, the middle portion of the auxiliary supporting beam is fixedly connected with the rear longitudinal beam, and the upper end of the rear shock absorber is connected with the rear portion of the auxiliary supporting beam.

Furthermore, the two auxiliary supporting beams are fixedly connected at the rear ends of the two auxiliary supporting beams, the two auxiliary supporting beams are respectively arranged at the left side and the right side of the main frame body, a first fixing connecting rod is fixed between the two auxiliary supporting beams, and the first fixing connecting rod is fixedly connected with the rear longitudinal beam.

Furthermore, a second fixed connecting rod is fixed between the two auxiliary supporting beams, and a stabilizing supporting rod is arranged between the second fixed connecting rod and the rear longitudinal beam.

Furthermore, the two auxiliary supporting beams are formed by integrally bending a steel pipe.

Further, the sprocket chain include drive sprocket, follow driving wheel dish and connect the chain between drive sprocket and follow driving wheel dish, drive sprocket rotates the lower extreme that sets up at the main frame and is connected with pedal crank, follow driving wheel dish and connect the rear wheel, follow driving wheel dish and be connected with the electric bicycle derailleur.

Furthermore, the driven wheel disc is connected with a driving motor, and a power supply is fixed on the main frame body.

Further, the front shock absorber is a hydraulic shock absorber.

Further, the rear shock absorber is a spring shock absorber.

The embodiment of the utility model provides a have following advantage:

the embodiment of the utility model provides an increased auxiliary supporting beam on the basis of main frame body, the weight that can bear is bigger, has set up preceding bumper shock absorber and back bumper shock absorber respectively moreover, increases the steadiness, and is safer, comfortable, both can go through running-board driving sprocket chain moreover, also can go through driving motor, and trafficability characteristic is good, makes to ride more laborsaving, and convenient crowd is also many.

The main frame body and the auxiliary supporting beam can be made of aluminum alloy, so that the whole vehicle is light and is not easy to deform; the cooperation electric variable speed effect, different speeds of different gear automatic matching experience better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of an electric bicycle provided in embodiment 1 of the present invention without a battery box;

fig. 2 is a schematic view of the electric bicycle according to embodiment 1 of the present invention after a battery box is installed;

fig. 3 is a schematic view of an electric bicycle according to embodiment 2 of the present invention;

in the figure: 1-upper beam 2-front longitudinal beam 3-rear longitudinal beam 4-auxiliary support beam 5-vehicle seat 6-first fixed connecting rod 7-second fixed connecting rod 8-stabilizing support rod 9-rear shock absorber 10-rear wheel 11-driven wheel disc 12-chain 13-driving chain wheel 14-pedal plate 15-pedal crank 16-front fork 17-front shock absorber 18-rear fork 19-handlebar 20-front wheel 21-speed governor 22-battery box 23-fixed shaft sleeve 24-display 25-gear shifter 26-folding seat back.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered to be within the scope of the present invention without substantial changes in the technical content.

Example 1

Referring to fig. 1, the electric bicycle includes a main frame body, a front wheel 20, a rear wheel 10, a sprocket chain and an auxiliary support beam 4, a handlebar 19 is disposed at the front end of the main frame body and connected to the front wheel 20 through a front fork 16, the rear wheel 10 is disposed at the rear side of the main frame body through a rear fork 18, a saddle 5 is disposed at the upper side of the main frame body, a pedal 14 and a pedal crank 15 are disposed at the lower end of the main frame body and connected to each other, the pedal crank 15 is connected to the rear wheel 10 through the sprocket chain, and the sprocket chain is further connected to a driving motor (not shown), the driving motor is connected to a power source, a speed regulator 21 connected to the driving motor is disposed on the handlebar 19, a front damper 17 is disposed on the front fork 16, the auxiliary support beam 4 is disposed on the upper portion of the main frame body, and. Preceding bumper shock absorber 17 is hydraulic shock absorber, and back bumper shock absorber 9 is spring shock absorber, and back bumper shock absorber 9's spring is the variable pitch spring moreover, and spring upper portion pitch is greater than lower part pitch, can provide better support like this, adapts to multiple topography.

The chain wheel chain comprises a driving chain wheel 13, a driven wheel disc 11 and a chain 12 connected between the driving chain wheel 13 and the driven wheel disc 11, the driving chain wheel 13 is rotatably arranged at the lower end of the main frame and connected with a pedal crank 15, the driven wheel disc 11 is connected with a rear wheel 10, the driven wheel disc 11 is connected with an electric bicycle speed changer, and the electric bicycle speed changer can adopt a speed changer disclosed by the patent number 201410054306.5. The driven wheel disc 11 is connected with a driving motor, and a power supply is fixed on the main frame body. The left handle of the handlebar 19 is provided with a shifter 25 connected with the transmission of the electric bicycle, and the shifter 25 is utilized to realize electric gear shifting, namely, the gear meshed with the chain 12 on the driven wheel disc 11 is replaced, so that the operation is convenient. A display 24 is arranged in the middle of the handlebar 19, and the maximum speed of the electric bicycle can be set through the display 24, and three gears or five gears can be selected.

The main frame body in this embodiment includes entablature 1, front longitudinal 2 and back longeron 3, the front end of entablature 1 is connected through fixed axle sleeve 23 in the upper end of front longitudinal 2, the upper portion of back longeron 3 and the rear end fixed connection of entablature 1, the lower extreme interconnect of front longitudinal 2 and back longeron 3, saddle 5 is fixed in the upper end of back longeron 3, the front end and the front longitudinal 2 fixed connection of auxiliary supporting beam 4, the middle part and the back longeron 3 fixed connection of auxiliary supporting beam 4, back bumper shock absorber 9 upper end is connected with the rear portion of auxiliary supporting beam 4.

The auxiliary supporting beams 4 are two, the two auxiliary supporting beams 4 are formed by integrally bending a steel pipe, the rear ends of the two auxiliary supporting beams 4 are integrally connected, the two auxiliary supporting beams 4 are respectively arranged on the left side and the right side of the main frame body, a first fixing connecting rod 6 is fixed between the two auxiliary supporting beams 4, the first fixing connecting rod 6 is arranged on the rear side of the rear longitudinal beam 3, and the first fixing connecting rod 6 is fixedly connected with the rear longitudinal beam 3. Still be fixed with second fixed connecting rod 7 between two auxiliary supporting beam 4, second fixed connecting rod 7 sets up the rear side at first fixed connecting rod 6, is equipped with stabilizing support bar 8 between second fixed connecting rod 7 and the back longeron 3, further increases stability.

Referring to fig. 2, in this embodiment, a battery box 22 is mounted and fixed on the upper sides of two auxiliary supporting beams 4, and the battery box 22 is located on the lower side of the upper cross beam 1, so that normal riding is not affected, and the fixing is firm. The power source is fixed in the battery box 22, and the controller is also fixed in the battery box 22, and the electric bicycle speed changer is connected with the controller.

Increased auxiliary supporting beam 4 on the basis of main frame body, the weight that can bear is bigger, has set up preceding bumper shock absorber 17 and rear shock absorber 9 respectively moreover, increases the steadiness, and is safer, comfortable, both can go through running-board 14 drive sprocket chain moreover, also can go through driving motor, and trafficability characteristic is good, makes to ride more laborsaving, and convenient crowd is also many. The main frame body and the auxiliary supporting beam 4 can be made of aluminum alloy, so that the whole vehicle is light and is not easy to deform; the cooperation electric variable speed effect, different speeds of different gear automatic matching experience better.

Example 2

Referring to fig. 3, in the present embodiment, a folding seat back 26 is disposed at the rear end of the auxiliary support beam 4, the rear end of the folding seat back 26 is rotatably connected to the auxiliary support beam 4, when a child needs to be ridden, the folding seat back 26 is turned over by 90 degrees at most, so as to effectively protect the child, and when the child is ridden or ridden, the folding seat back 26 is folded onto the auxiliary support beam 4 and is fixed by a latch or a spring.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. An electric bicycle, characterized in that: the electric bicycle comprises a main bicycle frame body, a handlebar (19), a front wheel (20), a rear wheel (10), a chain wheel chain and an auxiliary supporting beam (4), wherein the handlebar (19) is arranged at the front end of the main bicycle frame body and is connected with the front wheel (20) through a front fork (16), the rear wheel (10) is arranged at the rear side of the main bicycle frame body through a rear fork (18), a saddle (5) is arranged at the upper side of the main bicycle frame body, mutually connected pedals (14) and pedal cranks (15) are arranged at the lower end of the main bicycle frame body, the pedal cranks (15) are connected with the rear wheel (10) through the chain wheel chain, the chain wheel chain is also connected with a driving motor, the driving motor is connected with a power supply, a speed regulator (21) connected with the driving motor is arranged on the handlebar (19), a front shock absorber (17) is arranged on the front fork (16), the auxiliary supporting beam (4) is, and a rear shock absorber (9) is arranged between the auxiliary supporting beam (4) and the rear fork (18).

2. The electric bicycle according to claim 1, wherein: the main frame body include entablature (1), front longitudinal beam (2) and back longeron (3), the front end of entablature (1) is connected through fixed axle sleeve (23) in the upper end of front longitudinal beam (2), the upper portion of back longeron (3) and the rear end fixed connection of entablature (1), the lower extreme interconnect of front longitudinal beam (2) and back longeron (3), saddle (5) are fixed in the upper end of back longeron (3), the front end and the front longitudinal beam (2) fixed connection of auxiliary supporting beam (4), the middle part and the back longeron (3) fixed connection of auxiliary supporting beam (4), back bumper shock absorber (9) upper end is connected with the rear portion of auxiliary supporting beam (4).

3. The electric bicycle according to claim 2, wherein: the auxiliary supporting beam (4) be two, the rear end fixed connection of two auxiliary supporting beam (4), two auxiliary supporting beam (4) set up respectively in the left and right sides of main vehicle frame body, be fixed with first fixed connecting rod (6) between two auxiliary supporting beam (4), first fixed connecting rod (6) and back longeron (3) fixed connection.

4. The electric bicycle according to claim 3, wherein: and a second fixed connecting rod (7) is further fixed between the two auxiliary supporting beams (4), and a stabilizing supporting rod (8) is arranged between the second fixed connecting rod (7) and the rear longitudinal beam (3).

5. The electric bicycle according to claim 3 or 4, wherein: the two auxiliary supporting beams (4) are formed by integrally bending a steel pipe.

6. The electric bicycle according to claim 1, wherein: the chain wheel chain include drive sprocket (13), follow driving wheel dish (11) and connect chain (12) between drive sprocket (13) and follow driving wheel dish (11), drive sprocket (13) rotate the lower extreme that sets up at the main frame and be connected with pedal crank (15), rear wheel (10) are connected in driven rim plate (11), driven rim plate (11) are connected with the electric bicycle derailleur.

7. The electric bicycle according to claim 6, wherein: the driven wheel disc (11) is connected with a driving motor, and a power supply is fixed on the main frame body.

8. The electric bicycle according to claim 1, wherein: the front shock absorber (17) is a hydraulic shock absorber.

9. The electric bicycle according to claim 1, wherein: the rear shock absorber (9) is a spring shock absorber.