CN219707215U - Portable bicycle - Google Patents

Abstract

The utility model relates to a portable bicycle, which comprises a front wheel (1), a rear wheel (2), a handlebar (3), a saddle (4) and a frame (5), wherein the frame (5) comprises a saddle tube (51), a middle shaft five-way (52), a longitudinal support frame (53) and a transverse support frame (54), and all the components are welded and connected to form a single-triangle structure frame (5); the front fork head pipe (6) is connected below the handlebar (3), the front fork head pipe (6) is arranged behind the seat pipe (51), and the bicycle steering device formed by the front fork and the handlebar (3) is integrally arranged behind the bicycle seat (4). The front fork head pipe of the bicycle is arranged behind the seat pipe, so that the whole volume of the bicycle is reduced, and compared with a double-triangle structure frame of a conventional bicycle, the bicycle frame has only one triangle structure and has the functions of transmission, steering and braking, and the bicycle frame has the advantages of firm structure, small volume and convenience in carrying; meanwhile, the riding mode is changed by structural change, and different riding experiences are brought for the play.

Description

Portable bicycle

Technical Field

The utility model relates to the technical field of riding tools, in particular to a portable bicycle.

Background

Bicycles, also known as bicycles or scooters, are typically two-wheeled small land vehicles. After people get on the vehicle, the pedal is taken as power, so that the vehicle is environment-friendly. The bicycle is various, there are single bicycle, double bicycle and many people's bicycles, both can regard as the vehicle of environmental protection to be used for riding instead of walk, trip, can regard as body-building equipment to be used for riding and taking exercise again.

The traditional bicycle is ridden for sitting posture, and the driving device comprises components such as pedals, a crank, a chain wheel, a chain, a flywheel and the like, and is simple in structure and high in efficiency. When the demand for self-driving camping of people is greatly increased, a plurality of families can choose to ride bicycles on campsites. The existing conventional adult or children bicycle has the problems of oversized size and inconvenient carrying. And the riding mode is too conventional, which is contrary to the recreation requirement of camping. There is a need for a portable bicycle that has greater riding interest.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a portable bicycle structure which has firm structure, small volume, convenient carrying and different from the prior riding mode.

The aim of the utility model can be achieved by the following technical scheme:

a portable bicycle comprises a front wheel, a rear wheel, a handlebar, a saddle and a frame, wherein the frame comprises a saddle tube, a middle shaft five-way, a longitudinal support frame and a transverse support frame, and all the components are welded and connected to form a single triangle structure frame;

the front fork head pipe is connected below the handle bar, and is arranged behind the seat pipe, and the bicycle steering device formed by the front fork and the handle bar is integrally arranged behind the bicycle seat.

Further, the steering device further comprises a bowl group and a handle, the front fork is connected with the handle bar through the bowl group, and the holding height of the handle bar is adjusted by adjusting the installation angle of the handle bar and the handle bar.

Further, the middle shaft five-way and the seat tube and the transverse supporting frame are mutually communicated.

Further, the longitudinal support frame and the transverse support frame are symmetrically arranged on two sides of the seat tube, the longitudinal support frame and the transverse support frame are connected through a rear wheel mounting frame, and the front fork head tube is arranged behind the seat tube and between the support frames on two sides.

Further, the bicycle rear wheel is installed between the two side support frames through the rear wheel installation frame.

Further, auxiliary wheels are symmetrically arranged on two sides of the rear wheel.

Further, a V brake seat is arranged above the longitudinal support frame, and a V brake for braking the bicycle is correspondingly arranged on the rear wheel of the bicycle.

Further, the bicycle also comprises a transmission system and pedal assemblies, wherein the pedal assemblies are arranged on two sides of the middle shaft in a five-way mode, the input end of the transmission system is connected with the pedal assemblies, the output end of the transmission system is connected with the rear wheels, and the rear wheels are driven to rotate through rotation of the pedal assemblies.

Further, the pedal plate assembly comprises a pedal plate support and a pedal plate, the pedal plate is connected to the pedal plate support in a turnover mode, the transmission system comprises a crank, a tooth disc, a chain and a flywheel, the crank and the tooth disc are arranged on one side of a middle shaft in a five-way mode, the flywheel is arranged on a rear wheel shaft, the pedal plate assembly drives the crank to rotate, and power is transmitted to the flywheel through the chain so as to drive the rear wheel to rotate.

Further, the frame is made of high-carbon steel or aluminum alloy.

Compared with the prior art, the utility model has the following advantages:

(1) The front fork head pipe of the bicycle is arranged behind the seat pipe, so that the whole volume of the bicycle is reduced, compared with a double-triangle structure frame of a conventional bicycle, the bicycle frame has only one triangle structure, has the functions of transmission, steering and braking, and is firm in structure, small in volume and convenient to carry.

(2) The change on the frame structure has also brought the change of riding mode, because the steering gear setting of bicycle is at the rear of bicycle seat, no longer the health leans forward when riding the person of riding, holds up the bicycle handle and rides, and needs the health to vertically sit on the cushion, and the arm hangs down the steering of back handle control front wheel, has brought different riding experience for going out to play.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a schematic view of the mounting structure of the frame and the front fork tube of the present utility model.

In the figure: 1. a front wheel; 2. a rear wheel; 3. a handle bar; 31. standing; 4. a saddle; 5. a frame; 51. a seat tube; 52. a center shaft; 53. a longitudinal support; 54. a transverse support; 55. a rear wheel mounting rack; 6. a front fork head pipe; 71. v brake; 72. a V brake seat; 81. a crank; 82. a dental tray; 83. a flywheel; 91. a foot pedal bracket; 92. a foot pedal.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, a portable bicycle includes a front wheel, a rear wheel 2, a handle bar 3, a saddle 4, and a frame 5.

Specifically, the frame 5 comprises a seat tube 51, a middle shaft five-way 52, a longitudinal support 53 and a transverse support 54, and all the components are welded and connected to form the single-triangle frame 5; the front fork head pipe 6 is connected below the handlebar 3, the front fork head pipe 6 is arranged behind the seat pipe 51, the bicycle steering device formed by the front fork and the handlebar 3 is integrally arranged behind the bicycle saddle 4, the structural change of the bicycle frame 5 also brings about the change of the riding mode, as the steering device of the bicycle is arranged behind the seat of the bicycle saddle 4, the rider does not lean forward any more when riding, the bicycle handlebar 3 is supported to ride, the body is required to be vertically sitting on the seat cushion, and the arm hangs down to the rear handle to control the steering of the front wheel.

Specifically, as shown in fig. 2, the steering apparatus further includes a bowl group and a handle, the front fork is connected to the handle bar 3 through the bowl group, and the grip height of the handle bar 3 is adjusted by adjusting the mounting angles of the handle bar 3 and the handle.

Specifically, as shown in fig. 3, the bottom bracket 52, the seat tube 51 and the transverse support frame 54 are mutually communicated; the longitudinal support frames 53 and the transverse support frames 54 are symmetrically arranged at two sides of the seat tube 51, the longitudinal support frames 53 and the transverse support frames 54 are connected through the mounting frame of the rear wheel 2, and the front fork head tube 6 is arranged at the rear of the seat tube 51 and between the support frames at two sides; the bicycle rear wheel 2 is installed between the support frames on two sides through the rear wheel 2 mounting frame, compares in the double triangle structure frame of conventional bicycle, has only a triangle structure in this embodiment, and sound construction is small in size, conveniently carries.

Specifically, as shown in fig. 3, a V brake seat 72 is provided above the longitudinal support 53, and a V brake 71 for a bicycle brake is correspondingly mounted on the bicycle rear wheel 2.

Specifically, as shown in fig. 1 and 2, the bicycle further comprises a transmission system and a pedal assembly, the pedal assembly is mounted on two sides of the bottom bracket axle five-way 52, an input end of the transmission system is connected with the pedal assembly, an output end of the transmission system is connected with the rear wheel 2, the pedal assembly comprises a pedal support 91 and a pedal, the pedal is connected to the pedal support 91 in a reversible manner, the transmission system comprises a crank 81 tooth disc 82, a chain and a flywheel 83, the crank 81 tooth disc 82 is mounted on one side of the bottom bracket axle five-way 52, the flywheel 83 is mounted on a wheel axle of the rear wheel 2, the crank 81 is driven to rotate by the pedal assembly, and power is transmitted to the flywheel 83 through the chain, so that the rear wheel 2 is driven to rotate.

Specifically, the material of the frame 5 is high carbon steel or aluminum alloy.

Working principle: this portable bicycle is used for camping, goes out scenes such as play, and bicycle steering device sets up in the seat rear, and the person of riding no longer leans forward when using, but holds up 3 hands of bicycle handle with the focus backward and rides, and the person of riding needs the health to vertically sit on the bicycle cushion, and the arm hangs down the steering of back handle control front wheel.

Example 2

In this embodiment, auxiliary wheels are symmetrically installed on both sides of the rear wheel 2, and the auxiliary wheels can be installed on both sides of the rear wheel 2 when a child uses the bicycle to ensure the riding safety of the child. The procedure is as in example 1.

It should be noted that, in the description of the present utility model, the terms "upper," "lower," "inner," "outer," "front," "rear," "both ends," "one end," "the other end," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (10)

1. The portable bicycle comprises a front wheel (1), a rear wheel (2), a handlebar (3), a saddle (4) and a frame (5), and is characterized in that the frame (5) comprises a saddle tube (51), a middle shaft five-way tube (52), a longitudinal support frame (53) and a transverse support frame (54), and all the components are welded and connected to form the single-triangle structure frame (5);

the front fork head pipe (6) is connected below the handlebar (3), the front fork head pipe (6) is arranged behind the seat pipe (51), and the bicycle steering device formed by the front fork and the handlebar (3) is integrally arranged behind the bicycle seat (4).

2. A portable bicycle according to claim 1, characterized in that the steering device further comprises a bowl group and a handlebar, the front fork being connected to the handlebar (3) via the bowl group, the grip height of the handlebar (3) being adjusted by adjusting the mounting angles of the handlebar (3) and the handlebar.

3. A portable bicycle according to claim 1, characterized in that the bottom bracket (52) is arranged in communication with the seat tube (51) and the transverse support (54).

4. The portable bicycle of claim 1, wherein the longitudinal support frames (53) and the transverse support frames (54) are symmetrically arranged on two sides of the seat tube (51), the longitudinal support frames (53) and the transverse support frames (54) are connected through a rear wheel mounting frame (55), and the front fork head tube (6) is arranged behind the seat tube (51) and between the two side support frames.

5. A portable bicycle according to claim 4, characterized in that the rear wheel (2) of the bicycle is mounted between the support frames on both sides by means of a rear wheel (2) mounting.

6. A portable bicycle according to claim 5, characterized in that the rear wheel (2) is provided with auxiliary wheels symmetrically on both sides.

7. A portable bicycle according to claim 1, characterized in that a V brake seat (72) is arranged above the longitudinal support frame (53), and a V brake (71) for a bicycle brake is correspondingly arranged on the rear wheel (2) of the bicycle.

8. The portable bicycle of claim 1, further comprising a transmission system and a pedal assembly, wherein the pedal assembly is mounted on both sides of the bottom bracket five-way (52), an input end of the transmission system is connected with the pedal assembly, an output end of the transmission system is connected with the rear wheel (2), and the rear wheel (2) is driven to rotate by rotation of the pedal assembly.

9. The portable bicycle of claim 8, wherein the pedal assembly comprises a pedal bracket (91) and a pedal (92), the pedal (92) is connected to the pedal bracket (91) in a reversible manner, the transmission system comprises a crank (81), a chain wheel (82), a chain and a flywheel (83), the crank (81) and the chain wheel (82) are arranged on one side of a bottom bracket five-way (52), the flywheel (83) is arranged on a wheel shaft of the rear wheel (2), the crank (81) is driven to rotate by the pedal assembly, and power is transmitted to the flywheel (83) through the chain, so that the rear wheel (2) is driven to rotate.

10. A portable bicycle according to claim 1, characterized in that the material of the frame (5) is high carbon steel or an aluminium alloy.