CN114394185A - a folding bicycle - Google Patents

Abstract

The invention relates to the technical field of bicycles, in particular to a folding bicycle, which comprises a bicycle frame body, a front fork connecting column, a bicycle front fork, a bicycle rear fork bracket, a lock tap mounting rod and a return spring, wherein the bicycle is folded, a bicycle handle is correspondingly retracted and folded, the lock tap is arranged, the lock tap is correspondingly clamped on the front fork by utilizing the elasticity of the spring to tightly fix the front fork and the rear fork of the bicycle together, the problems that a folding mechanism in the folding bicycle sold in the market is more complicated, the size of a folded bicycle body is larger, and the front fork and the rear fork of the bicycle body cannot be jointed and fixed are effectively solved, so that the folding bicycle is convenient to carry or transport, and simultaneously, after the folding bicycle is folded, the front wheel and the rear wheel are on the same straight line, the height of the bicycle seat is adjusted, can promote the bicycle and remove to portable performance is stronger, and the practicality is stronger, more suits to use widely on a large scale.

Description

a folding bicycle

technical field

The invention relates to the technical field of bicycles, in particular to a folding bicycle.

Background technique

At present, there are various types of folding bicycles on the market, which meet the requirements of light weight, small size and convenient operation to a certain extent. The folding mechanism of the current folding bicycles on the market is relatively complicated, the body volume after folding is large, and the front fork and rear fork of the body cannot be attached and fixed, which is inconvenient to carry or transportation.

To sum up, the present invention solves the existing problems by designing a folding bicycle.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a folding bicycle to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A folding bicycle includes a bicycle frame body, a front fork connecting column, a bicycle front fork, a bicycle rear fork bracket, a lock tap, a lock tap mounting rod and a return spring. A shock absorber is rotatably connected to the rear end of the bicycle frame body, between the two groups of the bicycle rear fork brackets and close to the bicycle frame body through a rotating shaft, and the other end of the shock absorber is rotatably connected to the bicycle frame body through a rotating shaft. On the side wall of the faucet, the lock tap mounting rod is connected to a group of bicycle rear fork brackets by bolts, the outer wall of the lock tap mounting rod is provided with an L-shaped groove, and the outer wall of the lock tap mounting rod is connected with the L-shaped groove. A lock faucet is sleeved correspondingly in the type groove, a positioning protrusion is provided on the lock faucet and located in the interior of the L-shaped groove, and a return spring is sleeved on one side of the lock faucet and located on the outer wall of the lock faucet installation rod, The front end of the bicycle frame body is rotatably connected to the front fork connecting column on the same side as the lock faucet through the rotating shaft, and the other end of the front fork connecting column is rotatably connected to the bicycle front fork corresponding to the lock faucet through the shaft sleeve.

As a preferred solution of the present invention, the bicycle frame body is rotatably connected to the bicycle shaft through the shaft sleeve, the two ends of the bicycle shaft respectively pass through the shaft sleeve, and extend to the outer side of the bicycle frame body to be fixedly connected with a pedal connecting rod, so The other end of the pedal connecting rod is connected with a pedal, the inner side of the pedal connecting rod and the outer wall of the bicycle shaft is fixedly sleeved with a large gear plate, and the opposite side walls of the two sets of bicycle rear fork brackets are far away from the reducer. One side of the shock absorber is rotatably connected with a rear wheel through a connecting shaft, and the axle center of the rear wheel is fixedly connected with a small gear plate, wherein the small gear plate is connected to the large gear plate through a chain.

As a preferred solution of the present invention, a support sleeve is fixedly arranged on the end surface of the bicycle frame body, and a seat support rod is slidably connected to the inside of the support sleeve, and the end of the seat support rod is fixedly connected with a The vehicle seat is provided with a lifting buckle 1 at the port of the support sleeve and at the connection between the support sleeve and the seat support rod.

As a preferred solution of the present invention, the opposite side walls of the bottom of the bicycle front fork are connected to the front wheel through a rotating shaft, and the end of the bicycle front fork penetrates the front fork connecting column and extends to the top of the front fork connecting column by folding. The first button is connected with a handle support cylinder, the port of the handle support cylinder is connected with a lifting rod through the lifting button 2, and the end of the lifting rod is extended to the inside of the handle supporting cylinder through the lifting button 2, and the lifting rod and the handle support The connection method of the barrel is a sliding connection.

As a preferred solution of the present invention, the end of the lifting rod is connected with a bicycle handle through the second folding buckle, the bicycle handle and the lifting rod form a cross-shaped structure, and both ends of the bicycle handle are respectively provided with brake handles. The outer side of the brake handle and located on the bicycle handle are respectively sleeved with an instrument and a controller, the controller is respectively provided with a light control button, a horn control button and a deceleration and acceleration control button, above the front wheel and located on the front fork The end of the connecting column is connected with a lighting lamp.

As a preferred solution of the present invention, the front fork connecting column is a hollow structure, and a rechargeable point lithium battery is arranged inside, wherein the rechargeable point lithium battery is electrically connected to the instrument, the controller and the lighting lamp respectively through wires. The rear wheel is a motor-driven wheel, and is electrically connected to the controller through wires.

As a preferred solution of the present invention, a rear disc brake is provided on the other side of the rear wheel and between the rear wheel and the bicycle rear fork bracket, and a rear disc brake control is correspondingly provided on the bicycle rear fork bracket and the rear disc brake The rear disc brake controller is connected to the brake handle by a wire rope.

As a preferred solution of the present invention, a front disc brake is provided on one side of the front wheel and located between the front wheel and the front fork of the bicycle, and a front disc brake controller is provided on the front fork of the bicycle and corresponding to the front disc brake, The front disc brake controller is connected to the brake handle by a wire rope.

As a preferred solution of the present invention, the inside of the bayonet of the lock faucet and the lever of the bicycle front fork are matched in a clearance fit, the positioning protrusion is slidably connected to the inside of the L-shaped groove, and the return spring is connected to the The outer wall of the lock faucet installation rod is fitted in a clearance fit.

As a preferred solution of the present invention, one side of the bicycle frame body is connected to the side wall of the front fork connecting column through a folding buckle on one side and opposite to the lock faucet, and the seat support rod and the support sleeve are in the same position. On a straight line, the bicycle frame body, the front fork connecting column and the bicycle rear fork bracket are on the same straight line.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the seat is folded, the car, and the handlebar are correspondingly retracted and folded in turn by design, and the lock tap is arranged, and the lock tap is correspondingly clamped on the front fork by the elasticity of the spring, and the front fork and the front fork of the bicycle are clamped. The rear forks are tightly fixed together, which effectively solves the problem that the folding mechanism of the current folding bicycles on the market is relatively complex, the volume of the body after folding is large, and the front fork and rear fork of the body cannot be attached and fixed. , making it easy to carry or transport.

2. In the present invention, after being folded by design, since the bicycle frame body, the front fork connecting column and the bicycle rear fork bracket are on the same line, the front wheel and the rear wheel are on the same line, and the seat support rod and the support sleeve are on the same line. Under the action of the same straight line, by adjusting the height of the seat, when the height of the seat is adjusted, the bicycle can be pushed to move, so that the portable performance is stronger, the practical performance is stronger, and it is more suitable for widespread use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the left side view structure schematic diagram of Fig. 1 of the present invention;

FIG. 3 is a schematic structural diagram of the folded state of the present invention;

Fig. 4 is the structural schematic diagram of Fig. 3 of the present invention;

Fig. 5 is the structural schematic diagram of Fig. 4 of the present invention;

6 is a schematic view of the enlarged structure of the present invention A;

7 is a schematic diagram of the enlarged structure of the present invention B;

FIG. 8 is a schematic structural diagram of a part of FIG. 1 of the present invention;

9 is a schematic diagram of the installation structure of the lock faucet installation rod, the lock faucet and the return spring of the present invention;

Fig. 10 is the structural schematic diagram of the installation rod of the lock faucet of the present invention;

Figure 11 is a schematic diagram of the structure of the lock faucet of the present invention.

In the figure: 1. Bicycle frame body; 2. Front fork connecting column; 3. Bicycle front fork; 4. Bicycle rear fork bracket; 9. Bicycle shaft; 10. Pedal connecting rod; 11. Pedal; 12. Large gear plate; 13. Rear wheel; 14. Support sleeve; 15. Seat support rod; 16. Seat; 17. Lifting buckle 1; 18. Front wheel; 19. Folding buckle 1; 20. Handle support cylinder; 21. Lifting buckle 2; 22. Lifting rod; 23. Folding buckle 2; 24. Bicycle handle; 25. Brake handle; 26. Instrument; 27, controller; 28, lighting; 29, rear disc brake; 30, front disc brake; 31, folding buckle three; 101, shock absorber; 102, L-shaped groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts, all belong to the protection scope of the present invention.

In order to facilitate the understanding of the present invention, the present invention will be more fully described below with reference to the related drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms, and is not limited to Examples, rather, these examples are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it may Whether directly connected to another element or possibly with intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the present invention, and the terms used herein in the description of the present invention are only used to describe specific embodiments For the purpose of, and not intended to limit, the invention, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figure 1-11, the present invention provides a technical solution:

A folding bicycle includes a bicycle frame body 1, a front fork connecting column 2, a bicycle front fork 3, a bicycle rear fork bracket 4, a lock tap 5, a lock tap mounting rod 6 and a return spring 7, and the bicycle rear fork bracket 4 is provided with two groups , and are respectively symmetrically connected to the rear end of the bicycle frame body 1 through the rotation shaft, between the two groups of bicycle rear fork brackets 4 and close to the bicycle frame body 1 are connected to the shock absorber 101 through the rotation shaft rotation, and the other end of the shock absorber 101 passes through The rotating shaft is rotatably connected to the side wall of the bicycle frame body 1, the lock tap mounting rod 6 is connected to a group of bicycle rear fork brackets 4 through bolts, the outer wall of the lock tap mounting rod 6 is provided with an L-shaped groove 102, and the lock tap mounting rod is provided with an L-shaped groove 102. On the outer wall of 6 and corresponding to the L-shaped groove 102, a lock tap 5 is sleeved, and the lock tap 5 is provided with a positioning protrusion 8 on the inside of the L-shaped groove 102, and one side of the lock tap 5 is located in the lock tap installation. The outer wall of the rod 6 is sleeved with a return spring 7, and the front end of the bicycle frame body 1 is connected to the front fork connecting column 2 on the same side as the lock faucet 5 through the rotating shaft. The other end of the front fork connecting column 2 is connected to the lock faucet 5. Correspondingly, a bicycle front fork 3 is rotatably connected with the axle sleeve.

1 and 2, the bicycle frame body 1 is rotatably connected to the bicycle shaft 9 through the shaft sleeve, and the two ends of the bicycle shaft 9 respectively pass through the shaft sleeve, and extend to the outside of the bicycle frame body 1 to be fixedly connected with a pedal connection. Rod 10, the other end of the pedal connecting rod 10 is connected with a pedal 11, the inner side of the pedal connecting rod 10 and the outer wall of the bicycle shaft 9 is fixedly sleeved with a large gear plate 12, and the opposite sides of the two groups of bicycle rear fork brackets 4 The side of the wall and away from the shock absorber 101 is rotatably connected with the rear wheel 13 through the connecting shaft, and the axle center of the rear wheel 13 is fixedly connected with a pinion gear plate, wherein the small gear plate is connected to the large gear plate 12 by a chain. Afterwards, the pedal connecting rod 10 can be driven to rotate by stepping on the pedal 11, and the rotation of the pedal connecting rod 10 drives the rotation of the bicycle shaft 9, the rotation of the bicycle shaft 9 mobilizes the large gear plate 12 to rotate, and the rotation of the large gear plate 12 drives the small gear plate 12 through the chain. When the gear plate rotates, the rear wheel 13 is mobilized to rotate.

1, 2 and 3, a support sleeve 14 is fixedly arranged on the end face of the bicycle frame body 1, and the inside of the support sleeve 14 is slidably connected with a seat support rod 15. The end is fixedly connected with the seat 16, the port of the support sleeve 14 and the connection between the support sleeve 14 and the seat support rod 15 is provided with a lifting buckle 17, open the lifting buckle 17, and press the seat 16, Press the seat support rod 15 to the inside of the support sleeve 14. After the seat support rod 15 is pressed to the inside of the support sleeve 14, it is fixed by locking the lifting buckle 17, that is, the folding of the seat 16 is completed.

1, 2 and 3, the port of the handle support cylinder 20 is connected with a lifting rod 22 through the lifting buckle two 21, and the end of the lifting rod 22 extends to the inside of the handle supporting cylinder 20 through the lifting buckle two 21, Under the action of sliding connection between the lift rod 22 and the handle support cylinder 20, open the lift button 21, press the bicycle handle 24, and press the lift rod 22 to the inside of the handle support cylinder 20. When the lift rod 22 is pressed to the handle support After the inside of the barrel 20, it is fixed by locking the lifting buckle 21, that is, the folding of the bicycle handlebar 24 is completed. Under the action of the handle support barrel 20 connected to the top of the front fork connecting column 2 through the folding buckle 19, the folding buckle is opened. One 19, and rotate the handle support cylinder 20, as shown in Figure 3, that is, to realize the folding of the handle support cylinder 20;

1 and 2, the end of the lifting rod 22 is connected with a bicycle handle 24 through a folding buckle 23, the bicycle handle 24 and the lifting rod 22 form a cross-shaped structure, and both ends of the bicycle handle 24 are respectively provided with a brake handle. 25, the outer side of the brake handle 25 and located on the bicycle handle 24 are respectively sleeved with an instrument 26 and a controller 27, the controller 27 is respectively provided with a lighting control button, a horn control button and a deceleration and acceleration control button, above the front wheel 18 In addition, a lighting lamp 28 is connected to the end of the front fork connecting column 2, which is convenient for lighting. The front fork connecting column 2 is a hollow structure, and a rechargeable lithium battery is provided inside to provide electricity for the bicycle, wherein the rechargeable lithium battery is provided. They are respectively electrically connected to the meter 26, the controller 27 and the lighting lamp 28 through wires, and the rear wheel 13 is a motor-driven wheel, and is electrically connected to the controller 27 through wires, so as to facilitate the observation of the power of the bicycle and the inspection of the motor-driven wheel. For speed control, a rear disc brake 29 is provided on the other side of the rear wheel 13 and located between the rear wheel 13 and the bicycle rear fork bracket 4, and a rear disc brake controller is correspondingly provided on the bicycle rear fork bracket 4 and the rear disc brake 29, The rear disc brake controller is connected to the brake handle 25 by a wire rope, and a front disc brake 30 is provided on one side of the front wheel 18 and located between the front wheel 18 and the bicycle front fork 3. The bicycle front fork 3 is connected to the front disc brake. 30 is correspondingly provided with a front disc brake controller, wherein the front disc brake controller is connected to the brake handle 25 through a wire rope, and the front disc brake controller and the rear disc brake controller are controlled by pulling the wire rope through the brake handle 25 to realize the control of the front disc brake controller. The control of the brake 30 and the rear disc brake 29 realizes the braking and deceleration control of the front wheel 18 and the rear wheel 13 .

4-11, the seat support rod 15 and the support sleeve 14 are on the same straight line, the bicycle frame body 1, the front fork connecting column 2 and the bicycle rear fork bracket 4 are on the same straight line to lock the faucet 5 The inside of the bayonet and the rod of the bicycle front fork 3 are matched in a clearance fit, the positioning protrusion 8 is slidably connected to the interior of the L-shaped groove 102, and the return spring 7 and the outer wall of the lock tap mounting rod 6 are matched in a clearance fit. Cooperate, one side of the bicycle frame body 1 is opposite to the lock tap 5 and is connected to the side wall of the front fork connecting column 2 through the folding buckle 31, and the internal positioning protrusion 8 of the lock tap 5 is placed in the L-shaped concave by forcefully rotating. The inside of the groove 102 rotates 90 degrees. At this time, under the elastic action of the return spring 7, the lock tap 5 is pushed to clamp the bicycle front fork 3.

Workflow of the present invention: when the bicycle is unfolded and used, as shown in Figure 1 and Figure 2, when the bicycle is not folded, as shown in Figure 3 and Figure 4, the folding steps are as follows:

Step 1, a seat support rod 15 is slidably connected up and down inside the support sleeve 14, the end of the seat support rod 15 is fixedly connected with the seat 16, and the port of the support sleeve 14 is located between the support sleeve 14 and the vehicle. Under the action of the lifting buckle 1 17 provided at the connection of the seat support rod 15, the lifting buckle 1 17 is opened, and the seat support rod 15 is pressed to the inside of the support sleeve 14 by pressing the seat 16. When the seat support rod 15 After pressing into the support sleeve 14, it is fixed by locking the lifting buckle 17, that is, the folding of the seat 16 is completed;

Step 2, a lifting rod 22 is connected to the port of the handle support cylinder 20 through the lifting button 21, the end of the lifting rod 22 is extended to the inside of the handle supporting cylinder 20 through the lifting button 21, and the lifting rod 22 is connected to the handle supporting cylinder 20. The connection method is that under the action of sliding connection, open the lifting buckle 21, press the bicycle handle 24, and press the lifting rod 22 to the inside of the handle support cylinder 20. After the lifting rod 22 is pressed to the inside of the handle support cylinder 20, it is locked by locking The lifting buckle 21 is fixed, that is, the folding of the bicycle handlebar 24 is completed;

Step 3, under the action of the handle support cylinder 20 connected to the top of the front fork connecting column 2 through the folding buckle one 19, the folding buckle one 19 is opened, and the handle support cylinder 20 is rotated, as shown in FIG. fold,

Step 4, on one side of the bicycle frame body 1 and opposite to the lock faucet 5 is connected to the side wall of the front fork connecting column 2 and the front end of the bicycle frame body 1 through the folding buckle 31, and is on the lock faucet 5. Under the action of the front fork connecting column 2 connected to the same side through the rotation of the rotating shaft, open the folding buckle 31, rotate the front fork connecting column 2 with force, and rotate the bicycle front fork 3 to the position corresponding to the lock tap 5. At this time, in the lock tap The inside of the bayonet of 5 and the lever of the bicycle front fork 3 are matched in a clearance fit, the positioning protrusion 8 is slidably connected to the inside of the L-shaped groove 102, and the return spring 7 is matched with the outer wall of the faucet installation rod 6. Under the action of clearance fit, as shown in Fig. 4-Fig. 11, the internal positioning protrusion 8 of the lock faucet 5 is rotated by 90 degrees in the L-shaped groove 102. At this time, under the elastic action of the return spring 7, the lock faucet is pushed. 5. Clamp the front fork 3 of the bicycle, so as to realize the complete folding of the bicycle. At the same time, the above steps are reversed to unfold the bicycle. In this process, the seat is folded, the car and the handlebar are correspondingly retracted and folded by design, and the setting The lock faucet uses the elasticity of the spring to clamp the lock faucet on the front fork to tightly fix the front fork and the rear fork of the bicycle together, effectively solving the complicated folding mechanism in the current folding bicycles on the market. Afterwards, the car body is large, and the front fork and rear fork of the car body cannot be attached to fix it, so that it is easy to carry or transport. At the same time, after folding, the front wheel and the rear wheel are in the same straight line. The height of the seat, when the height adjustment of the seat is completed, the bicycle can be pushed to move, so that the portable performance is stronger, the practical performance is stronger, and it is more suitable for widespread use.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A folding bicycle, comprising a bicycle frame body (1), a front fork connecting column (2), a bicycle front fork (3), a bicycle rear fork bracket (4), a lock tap (5), and a lock tap mounting rod (6) ) and a return spring (7), characterized in that: the bicycle rear fork brackets (4) are provided with two groups, and are respectively symmetrically connected to the rear end of the bicycle frame body (1) through the rotation of the rotating shaft, and the two groups of the bicycle rear forks are respectively symmetrical. Between the brackets (4) and close to the bicycle frame body (1), a shock absorber (101) is rotatably connected through a rotating shaft, and the other end of the shock absorber (101) is rotatably connected to the side of the bicycle frame body (1) through a rotating shaft On the wall, the lock tap mounting rod (6) is connected to a group of bicycle rear fork brackets (4) by bolts, and the outer wall of the lock tap mounting rod (6) is provided with an L-shaped groove (102). A lock tap (5) is sleeved on the outer wall of the lock tap mounting rod (6) and corresponding to the L-shaped groove (102), and a lock tap (5) is provided on the lock tap (5) and located inside the L-shaped groove (102). The positioning protrusion (8), one side of the lock tap (5) and the outer wall of the lock tap mounting rod (6) is sleeved with a return spring (7), the front end of the bicycle frame body (1), and is connected to the outer wall of the lock tap mounting rod (6). The lock tap (5) is rotatably connected to a front fork connecting column (2) on the same side through a rotating shaft, and the other end of the front fork connecting column (2) is connected to a bicycle front fork corresponding to the lock tap (5) through a shaft sleeve. (3). 2. A folding bicycle according to claim 1, characterized in that: the bicycle frame body (1) is rotatably connected to a bicycle shaft (9) through a shaft sleeve, and both ends of the bicycle shaft (9) pass through respectively The axle sleeve is extended to the outer side of the bicycle frame body (1) and is fixedly connected with a pedal connecting rod (10), the other end of the pedal connecting rod (10) is connected with a pedal (11), and the pedal is connected with The inner side of the rod (10) and located on the outer wall of the bicycle shaft (9) is fixedly sleeved with a large gear plate (12), and the two groups of the bicycle rear fork brackets (4) are opposite to the side walls and are far away from the shock absorber (101). A rear wheel (13) is rotatably connected to one side through a connecting shaft, and the shaft center of the rear wheel (13) is fixedly connected with a pinion wheel, wherein the pinion wheel is connected to the large wheel (12) by a chain. 3. A folding bicycle according to claim 2, characterized in that: a support sleeve (14) is fixedly arranged on the end surface of the bicycle frame body (1), and the inner part of the support sleeve (14) is up and down A seat support rod (15) is slidably connected, an end of the seat support rod (15) is fixedly connected with a seat (16), and the support sleeve (14) is located at the port of the support sleeve (14) ) and the seat support rod (15) is provided with a lifting buckle one (17). 4. A folding bicycle according to claim 3, characterized in that: a front wheel (18) is rotatably connected to the bottom side wall of the front fork (3) of the bicycle through a rotating shaft, and the front fork (3) The end of the front fork connecting column (2), and extending to the top of the front fork connecting column (2) is connected with a handle support cylinder (20) through a folding buckle (19), the port of the handle support cylinder (20) A lifting rod (22) is connected through the second lifting button (21), and the end of the lifting rod (22) extends to the inside of the handle support cylinder (20) through the second lifting button (21), and the lifting rod (22) The connection with the handle support cylinder (20) is sliding connection. 5. A folding bicycle according to claim 4, characterized in that: the end of the lifting rod (22) is connected with a bicycle handle (24) through the second folding buckle (23), and the bicycle handle (24) It has a cross-shaped structure with the lifting rod (22), the two ends of the bicycle handle (24) are respectively provided with a brake handle (25), and the outer side of the brake handle (25) is located in the respective sockets of the bicycle handle (24). There is an instrument (26) and a controller (27), the controller (27) is respectively provided with a lighting control button, a horn control button and a deceleration and acceleration control button, above the front wheel (18) and located in the front fork An illuminating lamp (28) is connected to the end of the connecting column (2). 6. A folding bicycle according to claim 5, characterized in that: the front fork connecting column (2) is a hollow structure, and is provided with a rechargeable point lithium battery, wherein the rechargeable point lithium battery passes through wires respectively It is electrically connected to the instrument (26), the controller (27) and the lighting lamp (28), the rear wheel (13) is a motor-driven wheel, and is electrically connected to the controller (27) through wires. 7. A folding bicycle according to claim 6, characterized in that: a rear disc is provided on the other side of the rear wheel (13) and between the rear wheel (13) and the bicycle rear fork bracket (4) A brake (29), the bicycle rear fork bracket (4) and the rear disc brake (29) are correspondingly provided with a rear disc brake controller, wherein the rear disc brake controller is connected to the brake handle (25) by a wire rope. 8. A folding bicycle according to claim 6, characterized in that: a front disc brake ( 30), the front fork (3) of the bicycle is provided with a front disc brake controller corresponding to the front disc brake (30), wherein the front disc brake controller is connected to the brake handle (25) by a wire rope. 9. A folding bicycle according to claim 1, characterized in that: the inside of the bayonet of the lock tap (5) and the rod of the bicycle front fork (3) are matched in a clearance fit, and the positioning The protrusion (8) is slidably connected to the interior of the L-shaped groove (102), and the matching manner of the return spring (7) with the outer wall of the faucet mounting rod (6) is clearance fit. 10. A folding bicycle according to claim 1, characterized in that: one side of the bicycle frame body (1) and opposite to the lock tap (5) are connected to the front through three folding buckles (31). On the side wall of the fork connecting column (2), the seat support rod (15) and the support sleeve (14) are on the same line, and the bicycle frame body (1), the front fork connecting column (2) and the The bicycle rear fork brackets (4) are on the same straight line.

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