CN217893124U - Folding frame of electric bicycle - Google Patents

Abstract

The utility model relates to a frame, especially an electric bicycle's folding chassis, include: the top of the vertical pipe is provided with a clamping groove, and the vertical pipe is used for mounting a seat pipe battery; one end of the upper pipe is fixed on the vertical pipe; the lock catch is arranged on the vertical pipe and is opposite to the clamping groove; the rotating seat is fixed at the bottom of the vertical pipe; the middle shaft tube is fixed at the bottom of the vertical tube; the bottom of one end of the rear fork is rotatably arranged on the rotating seat; the two ends of the rear seat frame are respectively connected with the rear fork; the auxiliary wheels are respectively and symmetrically arranged at the top of one end of the rear fork and the top of the rear seat frame; and the folder is respectively connected with the lock catch and the rear fork. The utility model provides a pair of electric bicycle's folding frame realizes the implementation of frame through four auxiliary wheels to need not to carry folding car, it is very convenient, laborsaving to use, and the battery is capacious, and the journey is long, has reduced the frequency of charging.

Description

Folding frame of electric bicycle

Technical Field

The utility model relates to a frame, especially an electric bicycle's folding chassis.

Background

For the convenience of carrying, electric bicycle also develops a folding money, but current electric motor car carries for the convenience of folding back, can only alleviate the weight of lithium cell, and then leads to effective stroke to shorten, and battery charging frequency is high to though alleviateed weight, still very hard when carrying.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a go through the auxiliary wheel after folding, convenient to carry and battery electric capacity is big, the long folding frame of an electric bicycle of stroke, concrete technical scheme is:

a folding frame for an electric bicycle, comprising: the top of the vertical pipe is provided with a clamping groove, and the vertical pipe is used for mounting a seat pipe battery; one end of the upper pipe is fixed on the vertical pipe; the lock catch is arranged on the vertical pipe and is opposite to the clamping groove; the rotating seat is fixed at the bottom of the vertical pipe; the central shaft tube is fixed at the bottom of the vertical tube; the bottom of one end of the rear fork is rotatably arranged on the rotating seat; the two ends of the rear seat frame are respectively connected with the rear fork; the auxiliary wheels are respectively and symmetrically arranged on the top of one end of the rear fork and the top of the rear seat frame; and the folder is respectively connected with the lock catch and the rear fork.

Preferably, the latch comprises: the clamping rings are fixed on the stand pipe, and the clamping plates are positioned on two sides of a clamping groove of the stand pipe; the clamping seat is positioned on one side of one of the clamping plates; the screw rod of the cam handle is rotatably arranged on the clamping seat and movably inserted on the clamping plate; and the clamping nut is positioned on one side of the other clamping plate and is connected with the screw rod.

Further, the folder includes: one end of the lock plate is rotatably installed on the screw rod, and a lock hook is arranged on the lock plate; the positioning sleeve is movably inserted on the screw rod and is positioned on one side of the locking plate; the locking torsion spring is movably inserted on the screw rod, one end of the locking torsion spring is connected with the locking plate, and the other end of the locking torsion spring is connected with the vertical pipe; the locking seat is fixed on the rear fork and provided with a locking groove, and the locking hook is movably inserted into the locking groove; and the locking screw is fixed on the locking seat and is arranged opposite to the locking hook.

Preferably, the device further comprises a shock absorbing device, wherein the shock absorbing device comprises: the shock absorption column is made of elastic materials, a shock absorption hole is formed in the shock absorption column, and one end of the shock absorption column is fixed on the locking seat; the damping nut is fixed in the damping hole; and the damping screw is installed on the damping nut, a damping threaded hole is formed in the damping screw, the damping threaded hole is connected with the locking screw, and the damping screw is further connected with the rear fork.

The shock absorption column is provided with a positioning groove, the rear fork is provided with a shock absorption plate, the shock absorption plate is provided with a positioning bulge, the positioning groove is inserted into the positioning bulge, and the shock absorption screw is installed on the shock absorption plate.

Preferably, the method further comprises the following steps: the electric appliance box is respectively connected with the vertical pipe, the upper pipe and the central shaft pipe, mounting holes and first wiring holes are respectively formed in two sides of the electric appliance box, and the electric appliance box is used for mounting the controller.

Further, the method also comprises the following steps: the socket box is respectively connected with the vertical pipe and the rotating seat, a connecting hole and a second wiring hole are formed in the socket box, and the second wiring hole is located on the same side as the first wiring hole.

Preferably, the device also comprises a clamping sheath, wherein the clamping sheath is provided with a positioning ring and a clamping opening, the clamping sheath is inserted into the vertical pipe, the positioning ring is positioned at the top of the vertical pipe, and the seat pipe battery is movably inserted into the clamping sheath.

Preferably, the rear fork is provided with a connecting rod, the rear seat frame is provided with a connecting plate, and the connecting plate is connected with the connecting rod.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model provides a pair of electric bicycle's folding frame realizes the implementation of frame through four auxiliary wheels to need not to carry folding car, it is very convenient, laborsaving to use, and battery capacity is big, and the journey is long, has reduced charging frequency.

Drawings

FIG. 1 is a schematic structural view of a folding frame of an electric bicycle;

FIG. 2 is a perspective view of a folding cart of an electric bicycle concealing a rear fork, a rear seat frame and a shock absorbing device;

FIG. 3 is an assembly schematic of the riser, upper tube, latch and swivel;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a schematic view of the construction of the clamping sheath;

FIG. 7 is a schematic view of the assembly of the rear fork and rear mount;

FIG. 8 is a schematic structural view of the rear mount;

FIG. 9 is a schematic view of the rear fork;

FIG. 10 is a schematic view of the construction of the folder;

FIG. 11 is a schematic view of the structure of the shock absorber;

FIG. 12 is a cross-sectional view of the shock absorber.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 12, a folding frame of an electric bicycle includes a stand pipe 2, an upper pipe 11, a locker 4, a bottom bracket pipe 35, a clamping sheath 12, a rotary seat 37, an electric box 31, a socket box 33, a rear fork 6, a rear seat frame 7, an auxiliary wheel 8, a folder, and a shock absorbing device.

The top of the stand pipe 2 is provided with a clamping groove 21, the rotating base 37 and the central shaft pipe 35 are both welded at the bottom of the stand pipe 2, and the rotating base 37 is also welded with the central shaft pipe 35. One end of the rotating seat 37 is provided with a rotating hole 36. The upper pipe 11 is welded on the stand pipe 2, and the upper pipe 11 and the bottom bracket pipe 35 are located on the same side of the stand pipe 2 and above the bottom bracket pipe 35. The upper tube 11 is used for connecting with a head tube of a bicycle, and a threading hole 111 is arranged on the upper tube 11. The bottom bracket tube 35 is used for mounting the bottom bracket. The clamping sheath 12 is provided with a positioning ring 121 and a clamping opening 122, the clamping sheath 12 is inserted in the stand pipe 2, the positioning ring 121 is positioned at the top of the stand pipe 2, and the seat pipe battery 9 is movably inserted in the clamping sheath 12. The clamping sheath 12 protects the seat tube battery 9 and forms a circular clamping surface with a large area. Because the top of the stand pipe 2 is clamped on the seat pipe battery 9 when the lock catch 4 clamps the stand pipe 2, the stress area is small, the seat pipe battery 9 is easy to damage, and after the clamping sheath 12 is adopted, the stand pipe 2 clamps the seat pipe battery 9 through the clamping sheath 12, the contact area is large during clamping, the clamping force is reliable, and the seat pipe battery 9 can be effectively prevented from being damaged by clamping.

Shackle 4 comprises locking ring 41, clamping shoe 43, cam handle 42 and clamping nut 45. The locking ring 41 is C-shaped, two ends of the locking ring 41 are provided with clamping plates 411, the locking ring 41 is fixed on the stand pipe 2, and the clamping plates 411 are positioned on two sides of the clamping groove 21; the clamping seat 43 is located on one side of one of the clamping plates 411; the cam handle 42 is a mature product, a screw 44 is arranged on the cam handle 42, the screw 44 is rotatably arranged on the clamping seat 43 and movably inserted on the clamping plate 411; the clamping nut 45 is located at one side of the other clamping plate 411 and is connected to the screw 44. Turning the cam handle 42 on turns the screw 44, and the screw 44 and the clamping nut 45 clamp and release the seat tube battery 9.

The electrical box 31 is respectively welded with the upper tube 11, the stand tube 2 and the central shaft tube 35, two sides of the electrical box 31 are respectively provided with a mounting hole 312 and a first wiring hole 311, and the controller is installed in the electrical box 31. The mounting hole 312 may be mounted with the cover plate 32, and the cover plate 32 closes the mounting hole 312. The first wiring hole 311 is for passing a wire. Socket box 33 can make things convenient for the installation of controller, has improved the joint strength between riser 2, top tube 11 and the central siphon 35 simultaneously, especially the joint strength between riser 2 and the top tube 11, forms triangle stable structure, avoids taking place to warp between riser 2 and the top tube 11, guarantees simultaneously that riser 2 does not warp. Because the stress of the whole vehicle is mainly born by the stand pipe 2, the strength of the stand pipe 2 is enhanced through the socket box 33, and the stand pipe 2 is not easy to deform. The top of the riser 2 is provided with a clamping groove 21.

The socket box 33 is welded with the rotating base 37 and the stand pipe 2 respectively, so that the connection strength between the stand pipe 2 and the rotating base 37 is enhanced, and the installation of the socket is facilitated. The socket box 33 is provided with a connecting hole 331 and a second wiring hole 332, the second wiring hole 332 is on the same side as the first wiring hole 311, the connecting hole 311 is used for passing through a lead connected with a controller to realize the connection of the controller and the socket, and the socket is connected with a plug of the seat tube battery 9. The socket is mounted on a socket board 34, and the socket board 34 is fixed to the socket case 33 by screws.

The rear fork 6 is triangular and has stable structure. Two auxiliary wheels 8 are symmetrically arranged on two sides of the top of the rear fork 6. The top of the rear fork 6 is welded with a damping plate 61, the damping plate 61 is provided with a positioning protrusion 611 and a damping through hole 612, and the damping through hole 612 is arranged on the positioning protrusion 611. One end of the bottom of the rear fork 6 is rotatably connected to the rotation hole 36 of the rotation base 37 through a rotation shaft. The other end of the bottom of the rear fork 6 is connected with a rear wheel. The rear fork 6 is also provided with a connecting rod 62 disposed opposite the rear seat frame 7.

The rear seat frame 7 is L-shaped, one end of which is provided with a connecting plate 71, and the other end of which is connected with the shaft of the rear wheel. Two auxiliary wheels 8 are symmetrically arranged at the corners of the rear seat frame 7, and the auxiliary wheels 8 on the rear seat frame 7 are arranged opposite to the auxiliary wheels 8 on the rear fork 6. The connecting plate 71 is connected to the connecting rod 62 by a bolt, and the rear seat frame 7 and the rear fork 6 are connected to each other. The rear seat frame 7 and the rear fork 6 are processed separately, and the processing is convenient.

The folder includes a lock plate 46, a positioning sleeve 47, a locking torsion spring 48, a locking seat 52 and a locking screw 53. One end of the lock plate 46 is rotatably mounted on the screw 44, the lock plate 46 is provided with a lock hook 461 and a lock shaft 462, and the lock shaft 462 is located below the lock hook 461. The positioning sleeve 47 and the locking torsion spring 48 are movably inserted on the screw 44 and respectively located on two sides of the locking plate 46, wherein the positioning sleeve 47 is used for positioning the locking plate 46, and the locking torsion spring 48 is used for providing elasticity to maintain the locking state. One end of the locking torsion spring 48 presses against the lock shaft 462 and the other end presses against the riser 2. The locking seat 52 is provided with a locking groove 521, the locking screw 53 is fixed on the locking seat 52 and located above the locking groove 521, and the locking hook 461 is movably inserted into the locking groove 521 and connected with the nut of the locking screw 53 to realize locking.

The damping device comprises a damping column 51, a damping nut 54 and a damping screw 55, wherein the damping column 51 is made of rubber, a damping hole 512 is formed in the center of the damping column 51, the damping hole 512 is a through hole, one end of the damping column 51 is fixed on the locking seat 52, a positioning groove 511 is formed in the other end of the damping column 51, and the positioning groove 511 is inserted into the positioning protrusion 611 of the damping plate 61, so that the damping column 51 does not rotate, the relative position of the locking hook 461 and the locking groove 521 is guaranteed to be unchanged, and locking is facilitated. The damping nut 54 is embedded in the damping hole 512 and does not rotate, the damping screw 55 is installed on the damping nut 54 and inserted in the damping through hole 612 of the damping plate 61 to fix the damping column 51 on the damping plate 61, the damping screw 55 is provided with a damping threaded hole 551, and the locking screw 53 is inserted in the damping hole 512 and connected with the damping threaded hole 551. Shock attenuation is realized to shock attenuation post 51, improves the travelling comfort of riding.

When the bicycle is folded, the locking plate 46 is opened, the locking hook 461 is separated from the locking screw 53, and then the rear fork 6 and the rear seat frame 7 are turned over, so that the auxiliary wheel 8 faces downwards to support the whole bicycle frame, the bicycle is convenient to push, the bicycle frame does not need to be lifted in hand, the use is very convenient and labor-saving, the battery capacity is large, the stroke is long, and the charging frequency is reduced.

The technical principle of the present invention has been described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.

Claims (9)

1. A folding frame of an electric bicycle is characterized by comprising:

the device comprises a vertical pipe (2), wherein a clamping groove (21) is formed in the top of the vertical pipe (2), and the vertical pipe (2) is used for mounting a seat pipe battery (9);

an upper pipe (11), wherein one end of the upper pipe (11) is fixed on the vertical pipe (2);

the lock catch (4) is mounted on the vertical pipe (2), and is opposite to the clamping groove (21);

the rotating seat (37), the rotating seat (37) is fixed at the bottom of the vertical pipe (2);

the central shaft tube (35), the central shaft tube (35) is fixed at the bottom of the vertical tube (2);

the bottom of one end of the rear fork (6) is rotatably arranged on the rotating seat (37);

the two ends of the rear seat frame (7) are respectively connected with the rear fork (6);

the auxiliary wheels (8), the auxiliary wheels (8) are respectively and symmetrically arranged on the top of one end of the rear fork (6) and the top of the rear seat frame (7); and

the folder is respectively connected with the lock catch (4) and the rear fork (6).

2. A folding frame for electric bicycles, according to claim 1, characterized in that said catch (4) comprises:

the clamping plates (411) are arranged at two ends of the locking ring (41), the locking ring (41) is fixed on the stand pipe (2), and the clamping plates (411) are positioned at two sides of the clamping groove (21) of the stand pipe (2);

a clamping seat (43), wherein the clamping seat (43) is positioned on one side of one clamping plate (411);

the screw rod (44) of the cam handle (42) is rotatably arranged on the clamping seat (43) and movably inserted on the clamping plate (411); and

a clamping nut (45), wherein the clamping nut (45) is positioned on one side of the other clamping plate (411) and is connected with the screw rod (44).

3. A folding frame for electric bicycles, as claimed in claim 2, wherein said folder comprises:

one end of the locking plate (46) is rotatably installed on the screw rod (44), and a locking hook (461) is arranged on the locking plate (46);

the positioning sleeve (47) is movably inserted on the screw rod (44) and is positioned on one side of the locking plate (46);

the locking torsion spring (48), the locking torsion spring (48) is movably inserted on the screw rod (44), one end of the locking torsion spring (48) is connected with the locking plate (46), and the other end of the locking torsion spring is connected with the vertical pipe (2);

the locking seat (52) is fixed on the rear fork (6), a locking groove (521) is formed in the locking seat (52), and the locking hook (461) is movably inserted into the locking groove (521); and

and the locking screw (53) is fixed on the locking seat (52) and is opposite to the locking hook (461).

4. A foldable frame for an electric bicycle according to claim 3, further comprising a shock absorbing device comprising:

the shock absorption column (51), the shock absorption column (51) is made of elastic materials, a shock absorption hole (512) is formed in the shock absorption column (51), and one end of the shock absorption column (51) is fixed on the locking seat (52);

a shock absorbing nut (54), the shock absorbing nut (54) being fixed within the shock absorbing hole (512); and

the damping nut (54) is arranged on the rear fork, the damping nut (55) is provided with a damping threaded hole (551), the damping threaded hole (551) is connected with the locking screw (53), and the damping nut (55) is further connected with the rear fork (6).

5. The foldable frame of electric bicycle according to claim 4, characterized in that the shock-absorbing column (51) is provided with a positioning slot (511), the rear fork (6) is provided with a shock-absorbing plate (61), the shock-absorbing plate (61) is provided with a positioning protrusion (611), the positioning slot (511) is inserted on the positioning protrusion (611), and the shock-absorbing screw (55) is mounted on the shock-absorbing plate (61).

6. The foldable frame of the electric bicycle according to claim 1, further comprising:

the electric appliance box (31), electric appliance box (31) respectively with riser (2), upper tube (11) and central siphon (35) are connected, the both sides of electric appliance box (31) are equipped with mounting hole (312) and first wiring hole (311) respectively, electric appliance box (31) are used for installing the controller.

7. The foldable frame of the electric bicycle according to claim 6, further comprising:

the socket box (33), the socket box (33) respectively with stand pipe (2) with rotate seat (37) and be connected, be equipped with connecting hole (331) and second wiring hole (332) on socket box (33), second wiring hole (332) with first wiring hole (311) are in same side.

8. The folding frame of the electric bicycle as claimed in any one of claims 1 to 7, characterized by further comprising a clamping sheath (12), wherein a positioning ring (121) and a clamping opening (122) are arranged on the clamping sheath (12), the clamping sheath (12) is inserted into the stand pipe (2), the positioning ring (121) is positioned at the top of the stand pipe (2), and the seat pipe battery (9) is movably inserted into the clamping sheath (12).

9. The foldable frame of an electric bicycle according to any one of claims 1 to 7, wherein a connecting rod (62) is provided on the rear fork (6), a connecting plate (71) is provided on the rear seat frame (7), and the connecting plate (71) is connected to the connecting rod (62).

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