Electric bicycle

Abstract

An electric bicycle comprises a bicycle frame, the bicycle frame comprises a front bicycle frame body, a rear bicycle frame body, a mounting box provided with a five-way pipe and a rear fork, the front bicycle frame body comprises a head pipe, side frames arranged in a bilateral symmetry mode and a mounting plate, one end of each side frame is connected with the head pipe, the other end of each side frame is connected with the mounting box, each side frame comprises a first upper pipe, a second upper pipe and a lower pipe, the first upper pipe is in an L shape, and the second upper pipe is in an L shape. One end of the first upper pipe is connected with the head pipe, the other end of the first upper pipe is connected with the mounting box, the second upper pipe is arranged below the first upper pipe, one end of the second upper pipe is connected with the head pipe, the other end of the second upper pipe is connected with the lower end of the first upper pipe, one end of the lower pipe is connected with the second upper pipe, and the other end of the lower pipe is connected with the mounting box; the rear frame comprises an annular base, first supporting rods arranged on the two sides of the lower portion of the annular base and second supporting rods arranged below the first supporting rods. The overall structural strength of the frame is higher, and the appearance and position of the loudspeaker box are similar to those of a traditional exhaust pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle technical field. BACKGROUND

[0002] With the gradual improvement of people's living standards, electric bicycles gradually become a main means of transport for people's daily travel, which brings great convenience for people's daily travel.

[0003] The existing electric bicycle only has one upper tube and lower tube, and the overall strength of the frame is not enough, and the carrying capacity and off-road performance cannot meet the requirements. In addition, the electric bicycle cancels the engine and exhaust pipe, although it is more energy-saving and environmentally friendly, but it lacks the domineering appearance and sound of traditional fuel motorcycles. SUMMARY

[0004] The utility model solves the technical problem that the existing technology exists.

[0005] The utility model discloses a technical scheme for solving the above technical problems: a kind of electric bicycle, including frame, the frame includes front frame, rear frame, installation box with five pipe and rear fork, the front frame is arranged at the top of installation box, the rear frame is arranged at the rear side of front frame, the rear fork is hinged with installation box by hinged seat, the rear fork is arranged below rear frame, shock absorber is arranged between the rear frame and rear fork;The front frame includes head tube, left and right symmetrical side frame and mounting plate, one end of side frame is connected with head tube, the other end of side frame is connected with installation box, the side frame includes first upper tube, second upper tube and lower tube, the first upper tube is L-shaped, one end of first upper tube is connected with head tube, the other end of first upper tube is connected with installation box, the second upper tube is arranged below first upper tube, one end of second upper tube is connected with head tube, the other end of second upper tube is connected with the lower end of first upper tube, one end of lower tube is connected with second upper tube, the other end of lower tube is connected with installation box, front heat sink is arranged between the lower tube of two side frames, rear heat sink is arranged between the first upper tube of two side frames, crossbeam is arranged between the first upper tube of two side frames, two side frames, front heat sink and rear heat sink enclose battery containing space, battery box is arranged in the battery containing space, the bottom of battery box is fixed on mounting plate;The rear frame includes annular seat, first support rod arranged on the two sides below annular seat and second support rod arranged below first support rod, the front end of annular seat is arranged on crossbeam, one end of first support rod is connected with annular seat, the other end of first support rod is connected with first upper tube, one end of second support rod is connected with first support rod, the other end of second support rod is connected with first upper tube, cushion is arranged on annular seat, and mounting crossbar is arranged in annular seat;Annular seat is arranged below with cylindrical sound box arranged horizontally, the sound box is fixed on mounting crossbar through hanger, and the sound outlet of sound box faces outward.The utility model principle: the front frame includes first upper tube, second upper tube and lower tube, the rear frame includes annular seat, first support rod and second support rod, and the overall structural strength of frame is higher;Two side frames and front and rear heat sink enclose battery containing space, and the space layout of frame is reasonable, in the driving process, air can enter battery containing space through heat sink to heat battery box;Sound box is arranged below cushion, the shape and position of sound box are similar to traditional exhaust pipe, and sound box can also simulate the sound of fuel vehicle engine.

[0006] As an improvement, a plurality of reinforcing pipes are arranged between the first upper tube and the second upper tube.

[0007] As an improvement, a guide rod is arranged in the battery containing space, and a guide groove matched with the guide rod is arranged on the battery box.

[0008] As improvement, the first upper tube and the second upper tube are provided with a first decorative cover, the first support rod and the second support rod are provided with a third decorative cover, the first support rod and the annular seat are provided with a fourth decorative cover, and the top of the two side frames is provided with a flip cover which is hinged to the annular seat and opens the battery accommodating space.

[0009] As improvement, the upper end of the lower tube is connected to the middle position of the second upper tube, the upper end of the front heat dissipation plate is bent and extends to between the two second lower tubes, and the space between the battery box and the head tube forms a charger accommodating space.

[0010] The utility model compared with prior art brings beneficial effect is:

[0011] The front frame includes a first upper tube, a second upper tube and a lower tube, the rear frame includes an annular seat, a first support rod and a second support rod, and the overall structure of the frame has higher strength; the two side frames and the front and rear heat dissipation plates enclose a battery accommodating space, the space layout of the frame is reasonable, in the driving process, air can enter the battery accommodating space through the heat dissipation plates to cool the battery box; the sound box is arranged below the cushion, the appearance and position of the sound box are similar to those of the traditional exhaust pipe, and the sound box can also simulate the sound of the engine of the fuel vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a perspective view of the frame.

[0013] Figure 2 It is a side view of the frame. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the drawings of the specification.

[0015] For example, Figure 1 , 2The electric bicycle shown comprises a frame, a front wheel, a rear wheel and a seat cushion, and the rear wheel is integrated with a motor. The frame comprises a front frame 1, a rear frame 2, a mounting box 4 provided with a five-way pipe and a rear fork 3; the front frame 1 is arranged on the top of the mounting box 4, the rear frame 2 is arranged on the rear side of the front frame 1, the rear fork 3 is hinged to the mounting box 4 through a hinge seat, the rear fork 3 is arranged below the rear frame 2, and a shock absorber 5 is arranged between the rear frame 2 and the rear fork 3. The front frame 1 comprises a head tube 12, left and right symmetrical side frames 11 and a mounting plate 16; one end of the side frame 11 is connected with the head tube 12, and the other end of the side frame 11 is connected with the mounting box 4; the side frame 11 comprises a first upper pipe 111, a second upper pipe 112 and a lower pipe 113; the first upper pipe 111 is in L shape, one end of the first upper pipe 111 is connected with the head tube 12, and the other end of the first upper pipe 111 is connected with the mounting box 4; the second upper pipe 112 is arranged below the first upper pipe 111, one end of the second upper pipe 112 is connected with the head tube 12, and the other end of the second upper pipe 112 is connected with the lower end of the first upper pipe 111; one end of the lower pipe 113 is connected with the second upper pipe 112, and the other end of the lower pipe 113 is connected with the mounting box 4; a plurality of reinforcing pipe fittings 114 are arranged between the first upper pipe 111 and the second upper pipe 112; a front heat dissipation plate 13 is arranged between the lower pipes 113 of the two side frames 11, a rear heat dissipation plate 14 is arranged between the first upper pipes 111 of the two side frames 11, a cross beam 15 is arranged between the first upper pipes 111 of the two side frames 11, the two side frames 11, the front heat dissipation plate and the rear heat dissipation plate surround a battery accommodating space 17, a battery box 7 is arranged in the battery accommodating space 17, the battery box 7 is arranged in a vertical and inclined manner, the bottom of the battery box 7 is fixed on the mounting plate 16, a guide rod is arranged in the battery accommodating space 17, a guide groove matched with the guide rod is arranged on the battery box 7, the guide rod can constrain the battery box 7 and accurately position the battery box 7; the upper end of the lower pipe 113 is connected to the middle position of the second upper pipe 112, the upper end of the front heat dissipation plate is bent and extends to between the two second lower pipes 113, and the space between the battery box 7 and the head tube 12 forms a charger accommodating space 18. The rear frame 2 comprises a ring-shaped seat 21, first support rods 22 arranged on both sides below the ring-shaped seat 21 and second support rods 23 arranged below the first support rods 22; the front end of the ring-shaped seat 21 is arranged on the cross beam 15, one end of the first support rod 22 is connected with the ring-shaped seat 21, the other end of the first support rod 22 is connected with the first upper pipe 111, one end of the second support rod 23 is connected with the first support rod 22, and the other end of the second support rod 23 is connected with the first upper pipe 111; the ring-shaped seat 21 is provided with a seat cushion, and a mounting cross rod is arranged in the ring-shaped seat 21.The lower portion of the annular seat 21 is provided with a horizontally arranged cylindrical sound box 6 which is fixed on the mounting horizontal rod by a hanger, and the sound outlet of the sound box 6 faces outward. The sound box 6 is arranged below the seat cushion, and the seat cushion can shield and protect the sound box. The shape and position of the sound box are similar to those of a conventional exhaust pipe, and the sound box can also simulate the sound of an engine of a fuel vehicle. The first decorative cover is arranged between the second upper pipe 112 and the lower pipe 113, the second decorative cover is arranged between the first upper pipe 111 and the second upper pipe 112, the third decorative cover is arranged between the first support rod 22 and the second support rod 23, the fourth decorative cover is arranged between the first support rod 22 and the annular seat 21, the flip cover which opens the battery accommodating space 17 is arranged between the top portions of the two side frames 11, and the flip cover is hinged to the annular seat 21. After the flip cover is opened, the battery box 7 can be taken out upward.

[0016] The utility model principle: the front frame 1 includes first upper pipe 111, second upper pipe 112 and lower pipe 113, rear frame 2 includes annular seat 21, first support rod 22 and second support rod 23, and the whole structure strength of frame is higher; two side frames 11 and front, rear heat dissipation plate enclose battery accommodating space 17, and the space layout of frame is reasonable, and in the driving process, air can enter battery accommodating space 17 and carry out heat dissipation to battery box 7 through heat dissipation plate.

Claims

1. An electric bicycle, comprising a frame, the frame including a front frame, a rear frame, a mounting box with a bottom bracket, and a rear fork, the front frame being disposed on top of the mounting box, the rear frame being disposed behind the front frame, the rear fork being hinged to the mounting box via a hinge joint, the rear fork being disposed below the rear frame, and a shock absorber being disposed between the rear frame and the rear fork; characterized in that: The front frame includes a head tube, symmetrically arranged side frames, and mounting plates. One end of each side frame is connected to the head tube, and the other end is connected to the mounting box. Each side frame includes a first upper tube, a second upper tube, and a lower tube. The first upper tube is L-shaped, with one end connected to the head tube and the other end connected to the mounting box. The second upper tube is located below the first upper tube, with one end connected to the head tube and the other end connected to the lower end of the first upper tube. One end of the lower tube is connected to the second upper tube, and the other end is connected to the mounting box. A front heat sink is located between the lower tubes of the two side frames, a rear heat sink is located between the first upper tubes of the two side frames, and a crossbeam is located between the first upper tubes of the two side frames. The rear heat sink and the rear heat sink form a battery housing space, within which a battery box is located. The bottom of the battery box is fixed to a mounting plate. The rear frame includes a ring seat, first support rods located on both sides below the ring seat, and a second support rod located below the first support rods. The front end of the ring seat is located on a crossbeam. One end of the first support rod is connected to the ring seat, and the other end of the first support rod is connected to a first upper tube. One end of the second support rod is connected to the first support rod, and the other end of the second support rod is connected to the first upper tube. A cushion is provided on the ring seat, and a mounting crossbeam is provided inside the ring seat. A horizontally arranged columnar speaker is provided below the ring seat. The speaker is fixed to the mounting crossbeam by a hanger, and the speaker's sound outlet faces outward.

2. An electric bicycle according to claim 1, characterized in that: Several reinforcing pipe fittings are provided between the first upper pipe and the second upper pipe.

3. An electric bicycle according to claim 1, characterized in that: The battery housing is provided with a guide rod, and the battery box is provided with a guide groove that cooperates with the guide rod.

4. An electric bicycle according to claim 1, characterized in that: A first decorative cover is provided between the second upper tube and the lower tube, a second decorative cover is provided between the first upper tube and the second upper tube, a third decorative cover is provided between the first support rod and the second support rod, a fourth decorative cover is provided between the first support rod and the annular seat, and a flip cover for opening the battery accommodating space is provided between the tops of the two side frames, and the flip cover is hinged to the annular seat.

5. An electric bicycle according to claim 1, characterized in that: The upper end of the lower tube is connected to the middle position of the second upper tube, and the upper end of the front heat sink is bent and extends to the space between the two second lower tubes. The space between the battery box and the head tube forms a charger accommodating space.

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