CN211223739U

CN211223739U - Electric bicycle frame with double shock-absorbing structures

Info

Publication number: CN211223739U
Application number: CN201922087913.2U
Authority: CN
Inventors: 罗宏
Original assignee: Guangzhou Tuotai Machinery Co ltd
Current assignee: Guangzhou Tuotai Machinery Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-11
Anticipated expiration: 2029-11-28

Abstract

The utility model provides an electric bicycle frame of two shock absorber structures in area, including the head pipe, well pipe, establish well roof beam mechanism between head pipe and well pipe, five-way, the tail fork, establish the tailstock above the tail fork, preceding shock-absorbing spring and back shock-absorbing spring, the lower extreme welding of well pipe has the mounting bracket, the last surface welding of mounting bracket has the battery mounting panel, the rear end and the tail fork of mounting bracket are articulated, the front end of mounting bracket extends to the front side of well pipe, the front end welding of mounting bracket has five-way, the top welding of five-way has the articulated seat of second. Adopt above-mentioned technical scheme, be provided with the mounting bracket in the lower part of frame, five-way, well pipe, battery mounting panel all weld on the mounting bracket, and well pipe welds with five-way and battery mounting panel respectively, and the bulk strength of frame is high.

Description

Electric bicycle frame with double shock-absorbing structures

Technical Field

The utility model belongs to the technical field of the electric bicycle technique and specifically relates to an electric bicycle frame of two shock absorber structures in area.

Background

In the prior art, a five-way joint is generally welded at the front end of a middle pipe, the front end of the five-way joint is welded on a front hinged seat hinged with a middle beam, a battery mounting plate is welded at the rear end of the middle pipe, the rear end of the battery mounting plate is welded on a rear hinged seat hinged with a tail fork, and each component is welded independently, so that the overall strength is low, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take two shock absorber structure's electric bicycle frame, it has the high advantage of bulk strength, for reaching above-mentioned purpose, the utility model discloses a following technical scheme:

an electric bicycle frame with a double-shock-absorbing structure comprises a head pipe, a middle beam mechanism, a five-way joint, a tail fork, a tail frame, a front shock-absorbing spring and a rear shock-absorbing spring, wherein the middle beam mechanism, the five-way joint and the tail fork are arranged between the head pipe and the middle pipe; the front end of mounting bracket extends to the front side of well pipe, the front end welding of mounting bracket has the five-way, the top welding of five-way has the articulated seat of second, and well roof beam mechanism articulates on the articulated seat of second, and the upper portion front side of well pipe is equipped with the third articulated seat, is equipped with the articulated seat of fourth that sets up relatively with the third articulated seat in the well roof beam mechanism, preceding shock absorber spring establishes between well pipe and well roof beam mechanism and articulates with third articulated seat and fourth articulated seat respectively.

Further, the mounting bracket includes the installation pole that two intervals set up, the inboard and well pipe welding of installation pole, the front end of two installation poles of five-way welding and connect two installation poles, the front end of tail fork is equipped with articulated pipe, articulated pipe stretches into between the rear end of two installation poles and articulates with two installation poles.

Furthermore, the battery mounting plate comprises a bottom plate and a rear side plate arranged at the rear end of the bottom plate.

Further, the tailstock includes the fork and establishes the goods shelves at last fork top, go up the fork and include two fork arms, the front end and the well pipe welding of two fork arms, the top and the last fork welding of battery mounting panel, the rear end of two fork arms upwards extends the saddle that forms support goods shelves, two go up the inboard formation battery side guardrail of fork arm, well pipe forms battery front guardrail.

Further, goods shelves are U type return bend structure, the bottom welding of goods shelves is on the saddle, and goods shelves front end downwardly extending welds on last fork arm, the top welding of goods shelves has the handle pipe.

Furthermore, a reinforcing rod is welded between the two upper fork rods, and a reinforcing block is welded at the bottom of the contact position of the upper fork rods and the middle pipe.

Further, well roof beam mechanism includes front beam, back beam and establishes the scray between front beam and back beam, the both ends of front beam respectively with scray and head pipe welding, the back beam is forward and tilt up setting, the rear end and the articulated seat of second of back beam are articulated, the front end and the scray of back beam are connected, and the articulated seat of fourth is established at the front end of back beam, and fourth articulated seat, scray and back beam three are welded fastening each other.

Furthermore, one side of the five-way joint, which is close to the middle pipe, is welded with the middle pipe, and the front end of the bottom plate of the battery mounting plate is welded with the middle pipe.

Adopt above-mentioned technical scheme, be provided with the mounting bracket in the lower part of frame, five-way, well pipe, battery mounting panel all weld on the mounting bracket, and well pipe welds with five-way and battery mounting panel respectively, and the bulk strength of frame is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the upper fork.

Detailed Description

The present invention will be described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an electric bicycle frame with a double-shock-absorbing structure comprises a head tube 1, a middle tube 2, a middle beam mechanism 3, a five-way 13, a tail fork 4, a tail frame 30 arranged above the tail fork 4, a front shock-absorbing spring 5 and a rear shock-absorbing spring 6, wherein the middle beam mechanism 3, the five-way 13, the tail fork 4, the tail frame 30, the front shock-absorbing spring 5 and the rear shock-absorbing spring 6 are arranged between the head tube 1 and the middle tube 2, the mounting frame 7 is welded at the lower end of the middle tube 2, a battery mounting plate 8 is welded on the upper surface of the mounting frame 7, the battery mounting plate 8 is positioned at the rear end of the middle tube 2, the rear end of the mounting frame 7 is hinged with the tail fork 4, the tail fork 4 comprises a tail fork rod 9 and a fork piece 10 arranged at the rear end of the tail fork rod 9, the top of the fork piece 10; the front end of mounting bracket 7 extends to the front side of well pipe 2, the front end welding of mounting bracket 7 has five-way 13, the top welding of five-way 13 has the articulated seat of second 14, well roof beam mechanism 3 articulates on the articulated seat of second 14, the upper portion front side of well pipe 2 is equipped with third articulated seat 15, be equipped with the articulated seat of fourth 16 that sets up with third articulated seat 15 on well roof beam mechanism 3, preceding suspension spring 5 establishes between well pipe 2 and well roof beam mechanism 3 and articulated with third articulated seat 15 and fourth articulated seat 16 respectively. Adopt above-mentioned technical scheme, be provided with mounting bracket 7 in the lower part of frame, five-way 13, well pipe 2, battery mounting panel 8 all weld on mounting bracket 7, and the bulk strength of frame is high.

As a preferred scheme, the mounting bracket 7 comprises two mounting rods arranged at intervals, the inner sides of the mounting rods are welded with the middle pipe 2, the five-way 13 is welded at the front ends of the two mounting rods and connected with the two mounting rods, the front end of the tail fork 4 is provided with a hinged pipe, and the hinged pipe extends into the space between the rear ends of the two mounting rods and is hinged with the two mounting rods. By adopting the technical scheme, the two mounting rods are welded on the left side and the right side of the middle pipe 2, the front ends of the two mounting rods are connected with the five-way 13 together, and the whole structure has good strength.

Preferably, the battery mounting plate 8 includes a bottom plate 17 and a rear side plate 18 provided at a rear end of the bottom plate 17. The battery mounting plate 8 is welded at the top of the mounting frame 7, and is large in welding area and good in stress condition at a welding seam compared with the transmission direct welding at the rear side face of the middle pipe 2.

As a preferable scheme, as shown in fig. 2, the tail bracket 30 includes an upper fork 19 and a shelf 20 disposed on the top of the upper fork 19, the upper fork 19 includes two upper fork bars 21, the front ends of the two upper fork bars 21 are welded to the middle tube 2, the top end of the battery mounting plate 8 is welded to the upper fork 19, the rear ends of the two upper fork bars 21 extend upward to form a saddle 22 for supporting the shelf 20, the inner sides of the two upper fork bars 21 form a battery side guardrail, and the middle tube 2 forms a battery front guardrail. Adopt above-mentioned preferred scheme, go up fork 19 front end welding on well pipe 2, the bottom supports through battery mounting panel 8, goes up fork 19 joint strength height, and has utilized two fork arms 21, well pipe 2 and battery mounting panel 8 to form the installation space of battery for the structure of frame is compacter.

Preferably, the shelf 20 is of a U-bend structure, the bottom of the shelf 20 is welded to the pallet 22, the front end of the shelf 20 extends downward and is welded to the upper fork rod 21, and the top of the shelf 20 is welded to the handle tube 23.

As a preferable scheme, a reinforcing rod 24 is welded between the two upper fork rods 21, and a reinforcing block 26 is welded at the bottom of the contact part of the upper fork rods 21 and the middle pipe 2. By adopting the preferable scheme, the strength of the tailstock 30 is improved.

As a preferable scheme, the centre sill mechanism 3 comprises a front beam 27, a rear beam 28 and a folder 29 arranged between the front beam 27 and the rear beam 28, wherein both ends of the front beam 27 are respectively welded with the folder 29 and the head pipe 1, the rear beam 28 is arranged forward and inclined upwards, the rear end of the rear beam 28 is hinged with the second hinge seat 14, the front end of the rear beam 28 is connected with the folder 29, the fourth hinge seat 16 is arranged at the front end of the rear beam 28, and the fourth hinge seat 16, the folder 29 and the rear beam 28 are welded and fixed with each other. By adopting the preferable scheme, the welding seam area is increased, and the connecting strength between the rear end of the folder 29 and the fourth hinged seat 16 and the rear beam 28 is effectively improved.

As a preferable scheme, the side of the five-way joint 13 close to the middle pipe 2 is welded with the middle pipe 2, and the front end of the bottom plate 17 of the battery mounting plate 8 is welded with the middle pipe 2. Adopt above-mentioned preferred scheme, five-way 13, well pipe 2 and battery mounting panel 8 not only alone with mounting bracket 7 welding, well pipe 2 still respectively with five-way 13 and battery mounting panel 8 welding, improved the bulk strength of frame.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but is intended to cover various modifications, combinations, and alternatives, which will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a take two shock absorber structure's electric bicycle frame, includes head tube, well pipe, establishes well roof beam mechanism, five-way, tail fork between head tube and well pipe, establish tailstock, preceding shock absorber spring and the back shock absorber spring in the tail fork top, its characterized in that: the lower end of the middle pipe is welded with a mounting frame, the upper surface of the mounting frame is welded with a battery mounting plate, the battery mounting plate is located at the rear end of the middle pipe, the rear end of the mounting frame is hinged to a tail fork, the tail fork comprises a tail fork rod and a fork piece arranged at the rear end of the tail fork rod, the top of the fork piece protrudes upwards to form a hinged plate, the bottom of the tail frame is provided with a first hinged seat, and a rear shock-absorbing spring is arranged between the fork piece and the tail frame and is hinged to the hinged plate and the first hinged seat respectively;

the front end of mounting bracket extends to the front side of well pipe, the front end welding of mounting bracket has the five-way, the top welding of five-way has the articulated seat of second, and well roof beam mechanism articulates on the articulated seat of second, and the upper portion front side of well pipe is equipped with the third articulated seat, is equipped with the articulated seat of fourth that sets up relatively with the third articulated seat in the well roof beam mechanism, preceding shock absorber spring establishes between well pipe and well roof beam mechanism and articulates with third articulated seat and fourth articulated seat respectively.

2. The electric bicycle frame with a double shock absorbing structure of claim 1, wherein: the mounting bracket includes the installation pole that two intervals set up, the inboard and well pipe welding of installation pole, the front end of two installation poles of five-way welding and connect two installation poles, the front end of tail fork is equipped with articulated pipe, articulated pipe stretches into between the rear end of two installation poles and articulates with two installation poles.

3. The electric bicycle frame with a double shock absorbing structure of claim 2, wherein: the battery mounting plate comprises a bottom plate and a rear side plate arranged at the rear end of the bottom plate.

4. The electric bicycle frame with a double shock absorbing structure of claim 3, wherein: the tailstock includes the fork and establishes the goods shelves at last fork top, go up the fork and include two fork arms, the front end and the well pipe welding of two fork arms, the top and the last fork welding of battery mounting panel, the rear end of two fork arms upwards extends the saddle that forms support goods shelves, two go up the inboard formation battery side guardrail of fork arm, well pipe formation battery front guardrail.

5. The electric bicycle frame with a double shock absorbing structure of claim 4, wherein: the goods shelves are U type return bend structure, the bottom welding of goods shelves is on the saddle, and goods shelves front end downwardly extending welds on last fork arm, the top welding of goods shelves has the handle pipe.

6. The electric bicycle frame with a double shock absorbing structure of claim 4, wherein: a reinforcing rod is welded between the two upper fork rods, and a reinforcing block is welded at the bottom of the contact part of the upper fork rods and the middle pipe.

7. The electric bicycle frame with a double shock absorbing structure of claim 1, wherein: well roof beam mechanism includes front-axle beam, back beam and establishes the scray between front-axle beam and back beam, the both ends of front-axle beam respectively with scray and head pipe welding, the back beam sets up forward and tilt up, the rear end of back beam is articulated with the articulated seat of second, the front end and the scray of back beam are connected, and the articulated seat of fourth is established the front end at the back beam, and fourth articulated seat, scray and back beam three are welded fastening each other.

8. The electric bicycle frame with a double shock absorbing structure of claim 3, wherein: the five-way is welded with the middle pipe at one side close to the middle pipe, and the front end of the bottom plate of the battery mounting plate is welded with the middle pipe.