CN113830216A

CN113830216A - Modular bicycle structure capable of realizing transverse splicing and transverse splicing method thereof

Info

Publication number: CN113830216A
Application number: CN202110974229.5A
Authority: CN
Inventors: 李文杰; 张瑞洁; 王翌诚; 严雨婷
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-12-24
Anticipated expiration: 2041-08-24
Also published as: CN113830216B

Abstract

The invention discloses a modular bicycle structure capable of realizing transverse splicing and a transverse splicing method thereof, and belongs to the technical field of bicycles. The rear wheels of the spliced tandem bicycle are ensured to be coaxial, and meanwhile, the first modular bicycle and the second modular bicycle can be transversely spliced to form the spliced tandem bicycle under the condition that the front wheels of the spliced tandem bicycle can simultaneously turn at the same angle along with any one handlebar. The method can be used for transversely splicing the modular bicycle, can meet the requirements of single riding and double riding simultaneously, has the advantages of small size, light weight, simple splicing mode and beautiful shape of the modular bicycle, meets the parameter requirements of human engineering, and has good comfort level when in use.

Description

Modular bicycle structure capable of realizing transverse splicing and transverse splicing method thereof

Technical Field

The invention relates to the technical field of bicycles, in particular to a modular bicycle structure capable of realizing transverse splicing and a transverse splicing method thereof.

Background

With the popularization of the shared bicycle, a large number of shared bicycles are released in each big city in succession. It gradually becomes a necessary travel tool for the public and becomes a demand for the public. Meanwhile, vehicles are not allowed to enter the scenic spot, the occupied area is too large, and the road is narrow, so that the traffic in the scenic spot becomes a big problem. However, only a shared bicycle or a shared scenic spot vehicle is put in a scenic spot, which can only serve a certain number of tourist groups and cannot satisfy diversified tourist types in the scenic spot, such as single-person traveling and double-person traveling.

Disclosure of Invention

In view of the above, the invention provides a modular bicycle structure capable of realizing transverse splicing and a transverse splicing method thereof, the modular bicycle structure capable of being ridden by a single person can be transversely spliced to meet the requirement of a group of two persons to ride, and the modular bicycle adopting the method has the advantages of small size, light weight, simple splicing mode and beautiful shape, meets the parameter requirement of human engineering, has good comfort level during use, and has stronger stability and balance before and after splicing.

In order to achieve the purpose, the invention adopts the following technical scheme:

a modular bicycle structure capable of realizing transverse splicing comprises a bicycle frame main body, a bicycle seat, a front wheel fork, a rear wheel fork, a handlebar and a pedal; the bicycle comprises a bicycle frame main body, a bicycle seat, a bicycle handle and a pedal, wherein the bicycle seat, the bicycle handle and the pedal are arranged on the bicycle frame main body;

the front wheel fork and the rear wheel fork are of a single-side structure and are positioned on the left side and the right side of the vehicle body; the front wheel is connected with the lower part of the front wheel fork, and the upper part of the front wheel fork is rigidly connected with the vertical rod of the handlebar, so that the coaxial rotation of the front wheel and the handlebar is realized; the rear wheel is connected with the lower part of the rear wheel fork through a rear fork connecting piece, and the upper part of the rear wheel fork is connected with the frame main body;

one side of the rear fork connecting piece is provided with a middle shaft concave column which is coaxial with the rear wheel, and the other side of the rear fork connecting piece is provided with a rear rod rotating assembly with a middle shaft convex column which is matched with the middle shaft convex column;

the front wheel fork is provided with a front rod rotating assembly which comprises a front cross rod, a rotating part and a rotating connecting piece; the rotating piece is arranged on the front wheel fork, is positioned in front of and below the handlebar vertical rod and can rotate around an axis vertical to the vertical rod; one end of the front cross rod is arranged on the rotating part through the rotating connecting piece, and the other end of the front cross rod is provided with a connecting port with a locking structure.

Preferably, the rotating part is provided with a shaft hole, the rotating connecting piece positioned at one end of the front cross rod is sleeved on the shaft hole, and the front cross rod is attached to the front wheel fork.

Preferably, the length of the front cross bar is smaller than the length of the front wheel fork.

Preferably, the rear rod rotating assembly comprises a rear cross rod and a connecting rod, and the rear cross rod and the rear wheel fork can be opened and closed by 90 degrees; the connecting rod is retractably arranged in the rear cross rod, and the middle shaft convex column is positioned on the outer end surface of the connecting rod.

Preferably, the convex column of the middle shaft is provided with a convex column annular recess, the concave column of the middle shaft is provided with a concave column annular projection, and the concave column annular projection is matched with the convex column annular recess.

As the optimization of the invention, the number of the concave cylindrical annular bulges and the convex cylindrical annular depressions is 1-5.

Preferably, the length of the connecting rod is smaller than that of the rear cross rod, the connecting rod extends out of the rear cross rod to the longest length and then is automatically locked, and the total length after locking is 2 times that of the front cross rod.

Compared with the prior art, the invention has the advantages that:

1. the modularized shared bicycle can be assembled according to the requirements of users, and can meet the requirement of single and double riding in groups if being put in scenic spots, thereby having wide market prospect and economic benefit.

2. The modular bicycle adopting the method has the advantages of small size, light weight, simple splicing mode and beautiful shape. The bicycle after splicing can realize the simultaneous steering of the front wheels through any handlebar, and accords with the simultaneous steering function of a tandem bicycle.

3. The bicycle meets the parameter requirements of human engineering, has good comfort level when in use, and has stronger stability and balance before and after splicing.

Drawings

Fig. 1 is a schematic perspective view of a modular bicycle according to an embodiment of the present invention.

Fig. 2 is a rear view of a modular bicycle in accordance with an embodiment of the present invention.

FIG. 3 is an enlarged view taken at I in FIG. 1.

Fig. 4 is an exploded view of the structure at i in fig. 1.

Fig. 5 is an enlarged view of fig. 1 at point ii.

Fig. 6 is a cross-sectional view a-a at iii in fig. 2.

Fig. 7 is a schematic perspective view of a tandem bicycle after the modular shared bicycle is transversely spliced according to the embodiment of the invention.

FIG. 8 is a schematic view of a modular shared bicycle transverse connection.

FIG. 9 is a top handlebar turning view of a tandem bicycle after the modular shared bicycle is transversely spliced.

Fig. 10 is a main part schematic view of a cross-sectional view B-B in fig. 9.

Description of reference numerals:

the bicycle comprises a front wheel 100, a rear wheel 200, a front wheel fork 300, a rear wheel fork 400, a frame main body 500, a handlebar 600, a saddle 700, pedals 800, a front cross bar 310, a rotary connecting piece 311, a connecting port 312, a front fork main body 320, a rotary piece 330, a rear cross bar 410, a connecting rod 420, a middle shaft convex column 421, a convex column annular recess 422, a rear fork connecting piece 430, a middle shaft concave column 431, a concave column annular projection 432, a front fork connecting port 510 and a vertical rod 610;

the first modular bicycle a and the second modular bicycle b are marked in the sequence from right to left in fig. 7;

reference parts in the first modular bicycle a:

the bicycle front wheel comprises a front wheel a100, a rear wheel a200, a rear wheel fork a400, a handlebar a600, a front cross rod a310, a front fork main body a320, a rotating part a330, a vertical rod a610, a rotating connecting part a311, a connecting port a312, a rear cross rod a410, a connecting rod a420, a middle shaft convex column a421 and a convex column annular recess a 422.

Reference parts in the second modular bicycle b:

the bicycle front wheel comprises a front wheel b100, a rear wheel b200, a rear wheel fork b400, a handlebar b600, a front cross bar b310, a front fork main body b320, a rotating piece b330, a vertical rod b610, a rotating connecting piece b311, a connecting port b312, a rear fork connecting piece b430, a middle shaft concave column b431 and a concave column annular bulge b 432.

Detailed Description

In order to make the technical solutions and benefits of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention. It should be understood that the embodiments described are only a few embodiments of the present invention, and are not intended to be all embodiments. The components of the embodiments of the present invention generally depicted in the figures herein may be arranged in different configurations.

In the drawings, once an item is defined in a certain drawing, it need not be further defined in subsequent drawings. It should be noted that if the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for convenience of describing the present invention and simplifying the description, but do not indicate that the components referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus these terms should not be construed as limiting the present invention. In addition, when terms such as "horizontal", "vertical" and the like are used in the description of the present invention, these do not mean that the components are absolutely required to be horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that its orientation is more horizontal than "vertical" and does not mean that the component must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it is also to be understood that the terms "disposed," "connected," and "connected" if any, are intended to be inclusive unless explicitly stated or limited otherwise. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Fig. 1 shows a main structure of a modular bicycle according to the present invention, which includes: a front wheel 100, a front wheel fork 300, a rear wheel 200, a rear wheel fork 400, a frame body 500, a seat 700, a handle bar 600, and a footrest 800; the saddle 700 and the pedal 800 are mounted on the frame body 500, the handle bar 600 is connected with the front wheel fork 100 and mounted on the frame body 500, the front wheel 100 is mounted on the frame body 500 through the front wheel fork 300, and the rear wheel 200 is mounted on the frame body 500 through the rear wheel fork 400.

The front wheel fork 300 and the rear wheel fork 400 are both in a single-side structure and are respectively positioned on the left side and the right side of the vehicle body; with the traveling direction of the bicycle as a direction reference, the front wheel fork 300 is disposed on the left side of the frame body 500, and the rear wheel fork 400 is disposed on the right side of the frame body 500, or the front wheel fork 300 is disposed on the right side of the frame body 500, and the rear wheel fork 400 is disposed on the left side of the frame body 500. It should be noted that, as shown in fig. 1, the latter embodiment of the present invention is taken as an example.

As shown in fig. 3, the handle bar 600 is connected to the upper portion of the front wheel fork 300 through a vertical rod, wherein the vertical rod passes through the frame body 500, a front fork connecting port 510 for connecting the front wheel fork 300 is arranged at the bottom of the vertical rod, and the front wheel fork 300 can be driven by the vertical rod 610, so that the wheel and the handle bar can rotate coaxially. The stem 610 of the handle bar and the front fork 300 are connected to the frame body 500 with a certain inclination angle in the plumb direction, the saddle 700 is connected to the frame body 500 with the same inclination angle, and the height of the handle bar 600 and the saddle 700 is adjustable.

Referring to fig. 3 and 4, the front wheel fork 300 is provided with a front rod rotation assembly, which includes a front cross rod 310, a rotation member 330 and a rotation connection member 311; the rotating piece is arranged on a front wheel fork, is positioned in front of and below the handlebar vertical rod 610 and can rotate around an axis vertical to the vertical rod; one end of the front cross bar is installed on the rotating member 330 through the rotating connecting member 311, and the other end of the front cross bar is provided with a connecting port with a locking structure.

In this embodiment, the rotating member 330 is provided with a shaft hole, the rotating connecting member 311 at one end of the front cross bar 310 is sleeved on the shaft hole, and the rotating connecting member 311 and the rotating member 330 can rotate at a certain angle, wherein the rotating member can rotate around its own axial direction. When not transversely spliced (when in a single riding state), the front rail 310 is attached to the front fork main body 320 of the front wheel fork 300, and the length of the front rail needs to be smaller than that of the front wheel fork.

In one embodiment of the present invention, the front cross bar axis is parallel to the vertical bar 610 axis of the handlebar 600 and is offset a short distance forward in the single riding mode, and it can be connected tightly and separated quickly by abutting against the front fork main body 320, and the connection port 312 can abut against the connection port 312 of the front cross bar 310 of another bicycle and is provided with a locking structure. The locking structure described herein may be a conventional bolted connection or other form of rigid connection. The axis of the rotating member 330 intersects and is perpendicular to the axial direction of the stem 610 of the handlebar 600.

As shown in fig. 5 to 6, the rear wheel 200 is connected to the lower portion of the rear wheel fork 400 by a rear fork connection member, and the upper portion of the rear wheel fork 400 is connected to the frame body 500; the rear fork connecting piece is coaxial with the rear wheel, the wheel can rotate around the axis of the rear fork connecting piece, one side of the rear fork connecting piece is provided with a middle shaft concave column 431 coaxial with the rear wheel, the other side of the rear fork connecting piece is provided with a rear rod rotating assembly with a middle shaft convex column 421, and the middle shaft concave column 431 is matched with the middle shaft convex column 421.

In this embodiment, the rear lever rotating assembly includes a rear cross bar 410 and a connecting rod 420, which can open and close at 90 degrees with the rear wheel fork 400; when not transversely splicing (when in single riding state), the rear cross bar 410 is attached to the rear wheel fork 400, and the length of the rear cross bar needs to be less than the length of the rear wheel fork. The connecting rod is retractably arranged in the rear cross rod, and the middle shaft convex column is positioned on the outer end surface of the connecting rod. The middle shaft convex column is provided with a convex column annular recess 422, the middle shaft concave column 431 is provided with a concave column annular projection 432, and the concave column annular projection 432 is matched with the convex column annular recess 422. The number of concave cylindrical annular protrusions 432 and convex cylindrical annular recesses 422 is several, preferably 1-5, as shown in fig. 6 and 10 is a schematic illustration of the number 2.

In order to realize that the connecting rod is accommodated in the rear cross rod, the length of the connecting rod 420 needs to be smaller than that of the rear cross rod 410, the connecting rod 420 is automatically locked after extending out of the rear cross rod 410 to the longest length, the total length after locking is 2 times that of the front cross rod 310, and the distance is a comfortable distance for two persons to transversely ride side by side.

When the above-described modular bicycles are required to be transversely spliced, as shown in fig. 8, two modular bicycles are prepared for standby, the front wheel forks 300 of the two modular bicycles are positioned on the right side of the front wheel, and the rear wheel forks 400 are positioned on the left side of the rear wheel.

The front cross bar 310 of the first modular bicycle is lifted upwards, the rotating piece 330 is driven by the rotating connecting piece 311 at the end of the front cross bar 310 to rotate around the shaft to 90 degrees, and at the moment, the front cross bar 310 points to the right side of the bicycle and is overlapped with the horizontal line; then, the front cross bar 310 rotates 180 degrees around the rotating member 330 counterclockwise, and at this time, the front cross bar 310 points to the left side of the bicycle and is overlapped with the horizontal line; meanwhile, the front cross bar 310 of the second modular bicycle is lifted upwards, the rotating piece 330 is driven by the rotating connecting piece 311 at the end of the front cross bar 310 to rotate around the shaft to 90 degrees, and the front cross bar 310 points to the right side of the bicycle and is overlapped with the horizontal line;

lifting the rear cross beam 410 of the first modular bicycle upwards to coincide with the horizontal line, extending the connecting rod 420 out of the rear cross beam 410 and locking, wherein the axis of the connecting rod 420 coincides with the axis of the rear wheel;

a middle shaft convex column on the connecting rod 420 of the first modular bicycle is inserted into a middle shaft concave column in a rear fork connecting piece of the second modular bicycle, a convex column annular recess 422 on the middle shaft convex column is matched with a concave column annular projection 432 on the middle shaft concave column, and a rear wheel of the first modular bicycle and a rear wheel of the second modular bicycle are spliced side by side without external force;

meanwhile, a connecting port on the front cross rod 310 of the first modular bicycle is abutted and locked with a connecting port on the front cross rod 310 of the second modular bicycle, and the front cross rods 310 of the two bicycles are connected into a rigid rod, so that the wheels of the two bicycles can be driven to rotate simultaneously by rotating any one handlebar.

The tandem bicycle after splicing is shown in fig. 7 and 9.

When the spliced bicycle is to be disassembled, the connecting rod 420 to be disassembled and the rear fork connecting piece matched with the connecting rod 420 are unlocked, axial force is applied to the connecting rod 420, and the convex column annular recess on the convex column of the middle shaft is separated from the concave column annular projection on the concave column of the middle shaft, so that the connecting rod 420 is separated from the wheel; after separation, an axial force is applied to the connecting rod 420 to axially slide and extend into the rear cross rod 410, and the rear cross rod 410 rotates to be attached to the rear wheel fork 400; meanwhile, axial force is applied to the front cross bars 310 of two vehicles to be disassembled in different directions, so that the two vehicles are separated; after separation, the front cross bar 310 is rotated to engage the front wheel fork 300.

The foregoing lists merely illustrate specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.

Claims

1. A modular bicycle structure capable of realizing transverse splicing comprises a bicycle frame main body (500), a bicycle seat (700), a front wheel (100), a front wheel fork (300), a rear wheel (200), a rear wheel fork (400), a handlebar (600) and pedals (800); the bicycle is characterized in that the saddle (700), the handlebar (600) and the pedals (800) are arranged on the bicycle frame main body (500), the handlebar (600) is connected with the front wheel (100) through the front wheel fork (300), the pedals (800) are connected with the rear wheel (200) through a chain, and the rear wheel (200) is arranged on the bicycle frame main body (500) through the rear wheel fork (400);

the front wheel fork (300) and the rear wheel fork (400) are of a single-side structure and are positioned on the left side and the right side of the vehicle body; the front wheel (100) is connected with the lower part of the front wheel fork (300), the upper part of the front wheel fork (300) is rigidly connected with the vertical rod (610) of the handlebar (600), and the front wheel (100) and the handlebar (600) rotate coaxially; the rear wheel (200) is connected with the lower part of a rear wheel fork (400) through a rear fork connecting piece, and the upper part of the rear wheel fork (400) is connected with the frame main body (500);

one side of the rear fork connecting piece is provided with a middle shaft concave column (431) which is coaxial with the rear wheel, the other side of the rear fork connecting piece is provided with a rear rod rotating assembly with a middle shaft convex column (421), and the middle shaft concave column (431) is matched with the middle shaft convex column (421);

the front wheel fork (300) is provided with a front rod rotating component which comprises a front cross rod (310), a rotating component (330) and a rotating connecting piece (311); the rotating part is arranged on a front wheel fork, is positioned in front of and below a handlebar vertical rod (610), and can rotate around an axis vertical to the vertical rod; one end of the front cross bar is arranged on the rotating piece (330) through a rotating connecting piece (311), and the other end of the front cross bar is provided with a connecting port with a locking structure.

2. The modular bicycle structure capable of realizing transverse splicing of claim 1, wherein the rotating member (330) is provided with a shaft hole, the rotating connecting member (311) at one end of the front cross bar (310) is sleeved on the shaft hole, and the front cross bar (310) is attached to the front wheel fork (300).

3. The transversely spliced modular bicycle structure of claim 2, wherein the length of the front cross bar is less than the length of the front wheel fork.

4. The modular bicycle structure capable of realizing transverse splicing of the claims 1, wherein the rear rod rotating assembly comprises a rear cross rod (410) and a connecting rod (420), and the rear cross rod and a rear wheel fork (400) can be opened and closed by 90 degrees; the connecting rod is retractably arranged in the rear cross rod, and the middle shaft convex column is positioned on the outer end surface of the connecting rod.

5. The modular bicycle structure capable of realizing transverse splicing as claimed in claim 4, wherein the convex post is provided with a convex post annular recess (422), the concave post (431) of the middle shaft is provided with a concave post annular projection (432), and the concave post annular projection (432) is matched with the convex post annular recess (422).

6. The modular bicycle structure capable of realizing transverse splicing of claim 5, wherein the number of the concave cylindrical annular protrusions (432) and the convex cylindrical annular recesses (422) is 1-5.

7. The modular bicycle structure capable of realizing transverse splicing of claim 4, wherein the length of the connecting rod (420) is less than that of the rear cross rod (410), the connecting rod (420) is automatically locked after extending from the rear cross rod (410) to the longest length, and the total length after locking is 2 times of that of the front cross rod (310).

8. The transverse splicing method of the modular bicycle structure capable of realizing transverse splicing as claimed in any one of claims 1-7, is characterized by comprising the following steps:

1) preparing two modular single vehicles for standby, wherein front wheel forks (300) of the two modular single vehicles are positioned on the right side of a front wheel, and rear wheel forks (400) of the two modular single vehicles are positioned on the left side of a rear wheel;

2) lifting a front cross bar (310) of a first modular bicycle upwards, driving a rotating piece (330) to rotate around a shaft to 90 degrees by a rotating connecting piece (311) at the end part of the front cross bar (310), and enabling the front cross bar (310) to point to the right side of the bicycle and coincide with a horizontal line; then, the front cross rod (310) rotates 180 degrees around the rotating piece (330) in an anticlockwise mode, and at the moment, the front cross rod (310) points to the left side of the bicycle and is overlapped with a horizontal line; simultaneously, a front cross rod (310) of a second modular bicycle is lifted upwards, a rotating piece (330) is driven by a rotating connecting piece (311) at the end part of the front cross rod (310) to rotate around a shaft to 90 degrees, and the front cross rod (310) points to the right side of the bicycle and is overlapped with a horizontal line;

3) lifting a rear cross rod (410) of the first modular bicycle upwards to be overlapped with a horizontal line, extending a connecting rod (420) out of the rear cross rod (410) and locking, wherein the axis of the connecting rod (420) is overlapped with the axis of a rear wheel;

4) a middle shaft convex column on a connecting rod (420) of the first modular bicycle is inserted into a middle shaft concave column in a rear fork connecting piece of the second modular bicycle in a proper manner, a convex column annular recess (422) on the middle shaft convex column is matched with a concave column annular protrusion (432) on the middle shaft concave column, and a rear wheel of the first modular bicycle and a rear wheel of the second modular bicycle are spliced side by side without external force;

meanwhile, a connecting port on the front cross rod (310) of the first modular bicycle is abutted and locked with a connecting port on the front cross rod (310) of the second modular bicycle, and the front cross rods (310) of the two bicycles are connected into a rigid rod, so that the wheels of the two bicycles can be driven to rotate simultaneously by rotating any handlebar.

9. The transverse splicing method of the modular bicycle structure capable of realizing transverse splicing as claimed in claim 8, characterized in that when the spliced bicycle is to be disassembled, the connecting rod (420) to be disassembled and the rear fork connecting piece matched with the connecting rod are unlocked, an axial force is applied to the connecting rod (420), the convex column annular recess on the convex column of the middle shaft is separated from the concave column annular projection on the concave column of the middle shaft, so that the connecting rod (420) is separated from the wheel; after separation, applying axial force to the connecting rod (420) to enable the connecting rod to axially slide and stretch into the rear cross rod (410), and enabling the rear cross rod (410) to rotate to be attached to the rear wheel fork (400); simultaneously, applying axial force to front cross bars (310) of two vehicles to be disassembled in different directions to separate the two vehicles; after separation, the front cross bar (310) rotates to engage the front wheel fork (300).