CN205769854U - A New Type of Multifunctional Folding Bicycle - Google Patents

Abstract

The utility model discloses a novel multifunctional folding bicycle, which comprises a front wheel, a front fork frame, a steering handle, a seat, a rear fork frame and a rear wheel, wherein the front wheel is arranged at the front end of the front fork frame, the upper end of the front fork frame is connected with a front fork vertical support, a front beam sleeve is sleeved on the outer circumference of the front fork vertical support, a support frame is hinged to the outer circumference of the front beam sleeve close to the lower end of the front beam sleeve, a support frame stretching plate sliding along the support frame is sleeved on the support frame stretching plate, and the steering handle is sleeved in the upper end opening; the outer circumference of the front beam sleeve is fixedly connected with a horizontally arranged front beam, the upper end of the rear fork frame is fixedly connected with a rear fork vertical support, a rear beam sleeve is sleeved on the outer circumference of the rear fork vertical support, a seat is sleeved in an opening in the upper end of the rear fork vertical support, and a horizontally arranged rear beam is fixedly connected to the outer circumference of the rear beam sleeve. The utility model provides a novel multi-functional folding bicycle has "the dual-purpose multi-functional of a car", can also do functions in an organic whole such as shopping cart, luggage trailer after it is folded.

Description

A New Type of Multifunctional Folding Bicycle

technical field

The utility model belongs to the technical field of vehicles, and mainly relates to a novel multifunctional folding bicycle.

Background technique

With the continuous development of society and the level of science and technology, people's living standards have been continuously improved. People began to focus on development with the goal of improving their own quality of life, but this brought traffic congestion and serious environmental pollution, especially in China in recent years. The exhaust emissions of vehicles are one of the main sources of pollution. , although in the context of the global joint response to climate change, energy resource crisis and sustainable development. The construction of urbanization is gradually carried out and has developed to a relatively complete stage, which has brought superior material conditions to our lives, but at the same time, traffic congestion in our daily life is still a very difficult problem. Low-carbon transportation is Going to the hearts of the public, people are also constantly trying the convenience and environmental protection brought to us by low-carbon transportation. In daily travel, we try our best to choose high-efficiency and low-pollution modes of transportation. At present, our common low-carbon transportation is mainly buses, subways, and light rails. They are all transportation methods based on clean energy, but some people also choose to travel by bicycle, so this brings a lot of room for development of bicycles. Now more and more people choose to travel by bicycle or go to nearby scenic spots for outings, because this will not only better appreciate the scenery during the travel process, but also exercise their bodies and relax the pressure brought by life. It is very beneficial, because in the process of riding, the body is aerobic exercise, which is very beneficial for regulating one's own cardiopulmonary function, and riding a bicycle is energy-saving, environmentally friendly, convenient, fast, and low-cost, and is deeply loved by the masses. Therefore, bicycles have begun to develop in the direction of fashion, lightness, and foldability. However, there are still several major problems in the folding of current folding bicycles:

(1) The main purpose of ordinary folding bicycles is to reduce the space they occupy, and the functions are relatively single, and cannot be combined with other functions through simple changes;

(2) Folding bicycles are folded left and right in half. After folding, the shape is generally quite rough, with prominent edges and corners, exposed bones and bones. There is no folding locking device, which makes it impossible to stand independently and fall easily;

(3) Some bicycles can be folded into a shopping cart with two quick release parts, but the folding structure is too complicated and it is difficult to ensure the structural strength.

Utility model content

In order to solve the above technical problems, the utility model provides a novel multifunctional folding bicycle.

The technical scheme of the utility model is:

A novel multifunctional folding bicycle, comprising a front wheel, a front frame assembly, a transverse frame assembly, a rear frame assembly and a rear wheel connected in sequence; the front frame assembly includes a front fork, and the front wheel is located at the The front end, the upper end of the front fork frame is connected with the front fork vertical bracket, the upper end of the front fork vertical bracket is connected with the steering handle; the rear frame assembly includes the rear fork frame, the rear wheel is located at the rear end of the rear fork frame The upper end of the rear fork vertical bracket is connected with the seat, and the upper end of the rear fork vertical bracket is connected with the seat; one end of the horizontal frame assembly is provided with a front beam sleeve sleeved on the outer circumference of the front fork vertical bracket, and the horizontal frame assembly The other end of the rear fork is provided with a rear beam sleeve sleeved on the outer circumference of the vertical bracket of the rear fork; Stretching frame, the front end of the tail wheel stretching frame is provided with a Y-shaped bracket, one end of the Y-shaped bracket is connected with the tail wheel stretching frame, the other end of the Y-shaped bracket is equipped with a tail wheel through a pin shaft, and the third end of the Y-shaped bracket The end is provided with threaded holes, and the lower end surface of the transverse frame assembly is provided with a transverse chute, and the third end of the Y-shaped bracket is assembled with the transverse vehicle frame assembly through bolts passing through the threaded holes and the transverse chute in turn.

Preferably, the outer peripheral surface of the front beam sleeve is fixed with a horizontally arranged front beam, and the outer circumference of the rear beam sleeve is fixed with a horizontally arranged rear beam. Both the front beam and the rear beam are open at one end. The front beam and the rear beam are connected by an embedded beam, one end of the embedded beam is inserted into the opening of the front beam, and the other end of the embedded beam is inserted into the opening of the rear beam; the transverse chute is arranged on the lower end surface of the front beam.

Preferably, the rear fork frame at the end of the tail wheel frame is provided with a shaft hole, and a large gear shaft is installed in the shaft hole, the outer circumference of the large gear shaft is provided with a large gear, and the two ends of the large gear shaft are connected with pedal Assemblies, the large gear is connected by a chain to the pinion coaxially connected to the rear wheel.

Preferably, the outer circumference of the front beam sleeve near the lower end is hinged with a support frame, and the support frame is covered with a support frame stretching plate that slides along the support frame.

Preferably, the rear fork frame above the rear wheel is provided with a rear seat, the upper end surface of the rear seat is provided with a rear seat lower stretching plate, and the upper end surface of the rear seat lower stretching plate is provided with a rear seat upper stretching plate The upper end surface of the rear seat is provided with a circular turntable, the lower end surface of the lower stretch plate of the rear seat is provided with a T-shaped groove matching the circular turntable, the side wall of the lower stretch plate of the rear seat is provided with a chute, and The side wall corresponding to the tension plate under the rear seat is provided with a slide rail.

Preferably, the outer circumference of the front fork vertical bracket close to the upper opening is provided with a steering handle quick release assembly, and the rear fork vertical support is provided with a seat quick release assembly near the outer circumference of the upper opening.

Preferably, the front fork frame is fixed with symmetrically distributed small protruding columns near the outer circumference of the vertical bracket of the front fork, and the two sides of the support frame are provided with slots matching the small protruding columns.

The beneficial effects of the utility model are:

The novel multi-functional folding bicycle of the present application has the multi-function of "one car with two purposes". In addition to the general bicycle's walking or fitness function, it can also be used as a shopping cart and a luggage trailer after folding. Moreover, the folding structure of the new multifunctional folding bicycle is folded in the way of embedded shrinkage, which is convenient to fold, and can also be used to adjust the distance between the handlebar and the back seat according to the human body structure, which is convenient for people of all shapes and sizes to ride. . And can guarantee a certain structural strength.

Description of drawings

Fig. 1 is one of structural representation of the utility model;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is the second structural representation of the utility model;

Fig. 4 is the third structural representation of the utility model;

In the figure: 1 is the front wheel, 2 is the front fork frame, 3 is the tail wheel frame, 4 is the tail wheel tension frame, 5 is the pin shaft, 6 is the tail wheel, 7 is the bolt, 8 is the front beam sleeve, 9 is the support frame, 10 is the stretch plate of the support frame, 11 is the vertical bracket of the front fork, 12 is the quick release assembly of the steering handle, 13 is the steering handle, 14 is the front beam, 15 is the embedded beam, 16 is the rear beam, 17 18 is the seat, 19 is the quick release assembly of the seat, 20 is the vertical bracket of the rear fork, 21 is the upper stretch plate of the rear seat, 22 is the lower stretch plate of the rear seat, 23 is the rear seat, 24 is trailing wheel, and 25 is rear fork frame, and 26 is pinion, and 27 is chain, and 28 is pedal assembly, and 29 is bull gear.

detailed description

1-4 for specific embodiments of the present utility model, a novel multifunctional folding bicycle comprises front wheels 1, a front frame assembly, a transverse frame assembly, a rear frame assembly and a rear wheel 24 connected in sequence. The front frame assembly includes a front fork frame 2 , a front fork vertical support 11 and a steering handle 13 . The transverse frame assembly includes a front beam sleeve 8 , a front beam 14 , an embedded beam 15 , a rear beam 16 and a rear beam sleeve 17 . The rear frame assembly includes a rear fork 25 , a rear fork vertical support 20 and a seat 18 .

The front wheel 1 is arranged at the front end of the front fork frame 2, and the upper end of the front fork frame 2 is connected with a front fork vertical support 11, and the outer circumference of the front fork vertical support 11 is provided with a front beam sleeve 8, and a front beam sleeve 8 The outer circumference near the lower end is hinged with a support frame 9, the support frame 9 is provided with a support frame stretching plate 10 sliding along the support frame 9, and the front fork frame 2 is fixed with symmetrically distributed Protruding small cylinders, the two sides of the support frame 9 are provided with slots matching the protruding small cylinders. The upper end opening of the front beam sleeve 8 is sleeved with a steering handle 13, and the steering handle 13 is fixedly connected with the front fork vertical support 11 through the steering handle 13 to fix the quick release assembly 12.

The outer peripheral surface of the front crossbeam sleeve 8 is fixedly connected with the front crossbeam 14 arranged horizontally, the upper end of the rear fork frame 25 is fixedly connected with the rear fork vertical support 20, and the outer circumference of the rear fork vertical support 20 is provided with a rear crossbeam cover. The barrel 17 and the upper opening of the rear fork vertical support 20 are sleeved with a seat 18 , and the seat 18 is fixedly connected with the rear fork vertical support 20 through the seat quick release assembly 19 . The outer circumference of the rear crossbeam sleeve 17 is fixedly connected with a horizontally arranged rear crossbeam 16, the front crossbeam 14 and the rear crossbeam 16 are all open-end structures, the front crossbeam 14 and the rear crossbeam 16 are connected by an embedded beam 15, and the embedded beam 15 One end is inserted into the opening of the front beam 14 , and the other end of the embedded beam 15 is inserted into the opening of the rear beam 16 . The front end of the rear fork frame 25 is hinged with a tail wheel frame 3 with a front opening, and the tail wheel stretch frame 4 is slidably worn in the front end opening of the tail wheel frame 3, and the front end of the tail wheel stretch frame 4 is provided with a Y-shaped support. One end of the Y-shaped support is connected with the tail wheel tension frame 4, and the other end of the Y-shaped support is equipped with the tail wheel 6 through the bearing pin 5. The third end of the Y-shaped support is provided with a threaded hole, and the lower end surface of the front beam 14 is provided with There is a transverse chute, and the third end of the Y-shaped bracket is fixedly connected with the front beam 14 through the bolt 7 passing through the threaded hole and the transverse chute in turn; The bull gear shaft is equipped with, and the outer circumference of the bull gear shaft is provided with a bull gear 29, and the two ends of the bull gear shaft are connected with a pedal assembly 28, and the lower end of the rear fork frame 25 is connected with a rear wheel 24, and the bull gear 29 passes through the chain. 27 is connected with the pinion 26 of rear wheel 24. The rear fork frame 25 above the rear wheel 24 is provided with a rear seat 23, the upper end surface of the rear seat 23 is provided with a rear seat lower stretch plate 22, and the upper end surface of the rear seat lower stretch plate 22 is provided with a rear seat upper stretch plate twenty one. The upper end surface of the rear seat 23 is provided with a circular turntable, the lower end surface of the lower stretch plate 22 of the rear seat is provided with a T-shaped groove matched with the circular turntable, and the side wall of the lower stretch plate 22 of the rear seat is provided with a chute. Slide rails are provided on the corresponding side walls of the stretching plate 21 on the seat and the stretching plate 22 under the rear seat.

working principle:

When the new multifunctional folding bicycle is used for normal riding, its structural diagram is shown in Figure 1 and 3. When it is necessary to carry goods, the bicycle is folded into the structure shown in Figure 4. The folding method is to pull the tail wheel first Remove the fixing bolts between the outrigger 4 and the front beam 14 and put down the tail wheel 6, the front beam 14 and the rear beam 16 can slide along the embedded beam 15, combine the front and rear beams, and then wrap the front wheel 1 around the front beam The tube 8 rotates 90°, and finally the support frame 9 is put down, and the slots on the support frame 9 are just stuck on the two protruding small cylinders of the front fork frame 2, so that the support frame 9 can be kept fixed, and then the rear fork The frame 25 rotates 90° around the rear and rear beam sleeve 17 to keep the front and rear wheels parallel, and then uses the circular turntable installed on the rear seat 23 to rotate the lower stretching plate 22 of the rear seat by 90° to stretch out the upper stretching plate of the rear seat. plate 21, the stretch plate 21 on the rear seat, the stretch plate 22 under the rear seat are connected to the support frame 9 and fixed, so that the rear wheel 24 can be prevented from rotating, and finally the length of the tail wheel 6 stretch rods is adjusted and the Tail wheel 6 touches the ground, and tail wheel 6 can rotate around tail wheel 6 extension rods simultaneously, can realize the steering of bicycle after folding like this, has just finished the whole folding process of novel multifunctional folding bicycle like this. If it is necessary to pull and transport goods, the goods can be put on the rear seat 23 and get final product, which is convenient and quick.

Claims (7)

1. A novel multifunctional foldable bicycle is characterized in that it comprises a front wheel, a front frame assembly, a transverse frame assembly, a rear frame assembly and a rear wheel connected in sequence; the front frame assembly includes a front fork, a front wheel It is arranged at the front end of the front fork frame, the upper end of the front fork frame is connected with the front fork vertical support, and the upper end of the front fork vertical support is connected with the steering handle; the rear frame assembly includes the rear fork frame, and the rear wheel is arranged on the rear fork frame. At the rear end, the upper end of the rear fork frame is connected with the rear fork vertical support, and the upper end of the rear fork vertical support is connected with the seat; The other end of the transverse frame assembly is provided with a rear beam sleeve sleeved on the outer circumference of the rear fork vertical bracket; The tail wheel stretching frame is installed, the front end of the tail wheel stretching frame is provided with a Y-shaped bracket, one end of the Y-shaped bracket is connected with the tail wheel stretching frame, and the other end of the Y-shaped bracket is equipped with a tail wheel through a pin shaft. The third end of the Y-shaped bracket is provided with a threaded hole, and the lower end surface of the transverse frame assembly is provided with a transverse chute. Pack together. 2. The novel multi-function folding bicycle according to claim 1, characterized in that, the outer peripheral surface of the front beam sleeve is fixedly connected with a horizontally arranged front beam, and the outer circumference of the rear beam sleeve is fixedly connected with a horizontal The set rear cross beam, the front cross beam and the rear cross beam are all one-end open structures, the front cross beam and the rear cross beam are connected by an embedded beam, one end of the embedded beam is inserted into the opening of the front cross beam, and the other end of the embedded beam is inserted into the opening of the rear cross beam In; said transverse chute is arranged on the lower end face of the front beam. 3. The novel multifunctional folding bicycle according to claim 2, characterized in that, the rear fork frame at the end of the tail wheel frame is provided with a shaft hole, and a large gear shaft is installed in the shaft hole, and the outer circumference of the large gear shaft A large gear is sleeved, the two ends of the large gear shaft are connected with a pedal assembly, and the large gear is connected with a pinion coaxially connected with the rear wheel through a chain. 4. The novel multi-functional folding bicycle according to claim 3, characterized in that, the outer circumference of the front beam sleeve near the lower end is hinged with a support frame, and the support frame sleeve is provided with a support frame that slides along the support frame to stretch plate. 5. The novel multi-function folding bicycle according to claim 4, characterized in that, the rear fork above the rear wheel is provided with a rear seat, and the upper end surface of the rear seat is provided with a stretch plate under the rear seat, and the rear seat The upper end surface of the tension plate under the seat is provided with the upper tension plate of the rear seat; The side wall of the stretch plate under the seat is provided with a slide groove, and the side wall corresponding to the stretch plate on the rear seat and the stretch plate under the rear seat is provided with a slide rail. 6. The novel multi-function folding bicycle according to claim 5, characterized in that, the outer circumference of the vertical bracket of the front fork near the opening of the upper end is provided with a quick release assembly of the steering handle, and the vertical bracket of the rear fork is near the opening of the upper end. The outer circumference of the cover is provided with a seat quick release assembly. 7. The novel multi-functional folding bicycle according to claim 6, characterized in that, the outer circumference of the front fork frame near the vertical bracket of the front fork is fixed with symmetrically distributed small columns, and the two sides of the support frame are provided with There are card slots that match the protruding small cylinders.