CN117963058A - Large chain wheel bicycle capable of being folded twice and used as hand-pulled trolley - Google Patents
Large chain wheel bicycle capable of being folded twice and used as hand-pulled trolley Download PDFInfo
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- CN117963058A CN117963058A CN202410335111.1A CN202410335111A CN117963058A CN 117963058 A CN117963058 A CN 117963058A CN 202410335111 A CN202410335111 A CN 202410335111A CN 117963058 A CN117963058 A CN 117963058A
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Abstract
The invention discloses a large chain wheel bicycle capable of being a hand-pulled trolley after being folded twice, which comprises a front fork assembly, a front wheel, a front hinge, a bicycle girder, a rear hinge, a chain, a flywheel, a right pedal, a large chain wheel assembly, a left pedal, a rear wheel, a movable short shaft pin, a shifting fork, a rear seat assembly and a hinge bracket, wherein the front fork assembly comprises a foldable front handle and a front bicycle front fork connected with the front hinge, the rear seat assembly comprises a bicycle rear seat and a hinge bracket connected with the rear wheel and the rear hinge, the large chain wheel assembly comprises a large chain gear, a short shaft, two rolling bearings, and a left pedal and a right pedal connected with two ends of the short shaft, and shells of the two rolling bearings are respectively connected with the hinge bracket of the rear seat assembly through a left movable short shaft pin and a right movable short shaft pin; the flywheel is connected with the rear wheel, and the shifting fork is arranged on the rear seat component. The invention can be ridden or towed and can be used as a landing and riding tool between buses, subways and destinations, thereby being economical and applicable and not being cumbersome.
Description
Technical Field
The invention relates to a large chain wheel bicycle capable of being a hand-pulled trolley through two folds, and belongs to the technical field of transportation vehicles.
Background
Development path of this patent: the patent number ZL 20152 1024694.9 of the applicant provides an electric vehicle which can be folded into a hand-pulled trolley, wherein the electric vehicle is an L-shaped hand-pulled trolley commonly used by people for shopping when folding, and a portable electric vehicle which can be conveniently used by adults when unfolding. However, in practice the following disadvantages are found: 1. under the prior art condition, the motor and the battery of the product have ideal weight; 2. as a motor-driven rapid vehicle, small-wheel electric vehicles are not led to the street in many places for safety, so that the market prospect of the product as a vehicle is not seen at present.
In 2018, the applicant changes the patent number ZL2015 2 1024694.9 into a bicycle which can be folded into a trolley through autonomous innovation, namely the bicycle which can be folded into the trolley is an L-shaped trolley when being folded according to the method of the patent number ZL2015 2 1024694.9, and the bicycle is unfolded to be a portable bicycle which can be conveniently used by adults, so that the patent technology of the patent number ZL2018 2 0641939.X which can be folded into the bicycle of the trolley is generated.
At present, riding electric vehicles are very popular in urban life, however, because the electric vehicles are heavy and inconvenient to carry, and safety reasons are forbidden to carry vehicles such as trains, subways and the like, the problem of the bicycle is hardly existed, and the weight and the safety performance of the bicycle are not problematic. However, the shape of the bicycle is large and uneven, and the acting wheel of the flywheel can only move forward in one direction. In order to solve the problems, many methods for reducing the volume of the electric vehicle by folding are appeared on the market, but the volume is still too large after folding, the appearance is still uneven, and the problem of inconvenient carrying still exists.
The applicant then envisages changing the pulley block type accelerating drive system of the patent No. ZL2018 0641939.X "foldable to a bicycle of a trolley" into a large sprocket linkage flywheel direct accelerating drive system, with the technical problems that: ① The placement position of the large chain wheel in the role change of the bicycle and the hand-pulled trolley; ② The problem of the clutch of the chain and the flywheel in the role change of the bicycle and the hand-pulled trolley.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the bicycle with the large chain wheel can be used as a hand-pulled trolley through twice folding, is light and durable, can be safely ridden, can be towed and ridden, can be used as a parking tool between buses, subways and destinations, can be used for taking things in supermarkets and shopping malls, and is economical, applicable and not cumbersome.
The technical scheme adopted by the invention for solving the technical problems is as follows:
The large chain wheel bicycle capable of being a hand-pulled trolley after being folded twice comprises a front fork assembly, a front wheel, a front hinge, a bicycle girder, a rear hinge, a chain, a flywheel, a right pedal, a large chain wheel assembly, a left pedal, a rear wheel, a movable short shaft pin, a shifting fork, a rear seat assembly and a hinge bracket, wherein the front fork assembly comprises a foldable front handle and a front fork of which the front wheel is connected with the front hinge; the rear seat assembly comprises a bicycle rear seat and a hinge bracket for connecting a rear wheel and a rear hinge; the large chain wheel assembly comprises a large chain gear, a short shaft, two rolling bearings, a left pedal and a right pedal, wherein the two ends of the short shaft are connected with the left pedal and the right pedal, and the shells of the two rolling bearings are respectively connected with a hinge bracket of the rear seat assembly through a left movable short shaft pin and a right movable short shaft pin; the flywheel is connected with the rear wheel, the front hinge is connected with the rear hinge through a bicycle girder, the front end of the front hinge is connected with the front fork assembly, and the rear end of the rear hinge is connected with the rear seat assembly; the shifting fork is arranged on the rear seat component.
The front end and the rear end of the bicycle girder are respectively connected with the front fork component and the rear seat component through a front hinge and a rear hinge; the large chain gear is connected with the flywheel through a chain.
The large chain wheel assembly leaves the bicycle girder to rotate around two movable short shaft pins connected with a hinge bracket of the backseat assembly and vertically leans against the backseat assembly, so that the first folding is completed; the front fork assembly turns right around the front hinge while the squat assembly turns left around the rear hinge to complete the second fold.
After being folded twice, the bicycle girder becomes the bottom plate of the hand-pulled trolley.
The structures of the invention not described in detail are all prior art.
When the bicycle is used as a bicycle, the shell of the rolling bearing of the large chain wheel assembly is buckled on the girder of the bicycle, and the bicycle chain sleeved on the large chain wheel and the flywheel is tight, so that the bicycle can run just by pedaling left and right pedals as a common bicycle.
When the invention is used as a hand-pulled trolley, the shell of the large chain wheel assembly and the rolling bearing is buckled on the large chain wheel assembly of the bicycle girder, so that the large chain wheel assembly leaves the bicycle girder to rotate around two movable short shafts of a hinge bracket connected with the rear seat assembly to vertically lean against the rear seat assembly, and two remarkable effects are achieved: (1) The bicycle girder, the front fork assembly and the squatting assembly which are connected through the front hinge and the rear hinge can mutually move, and if the front fork assembly turns right, the squatting assembly turns left, and the girder is added, so that the bicycle girder is U-shaped in a overlook view; the front fork assembly and the rear seat assembly are L-shaped when seen from the side, one side of the bicycle handle is put down, and the front wheel and the rear wheel are added, so that the bicycle is a common hand-pulled trolley. (2) The distance between the large chain wheel and the flywheel is reduced by nearly half, and the chain is separated from the control of the flywheel under the assistance of the dead weight and the shifting fork, so that the trolley can move freely back and forth; if the reverse operation is restored, the wheels can only move in one direction.
The invention has the following positive beneficial effects:
1. In the riding mode, the bicycle is identical to a common bicycle, is more suitable for riding habits of people compared with a bicycle which is a hand-pulled trolley and can be folded into ZL2018 0641939.X, can be safely ridden, can be towed and put on the road, can be used for carrying things in supermarkets and shopping malls, can be used as a parking and riding tool between buses, subways and destinations, and is economical, applicable and not cumbersome.
2. The invention is very flexible. The bicycle girder is the bottom plate of the hand-pulled trolley, the bottom plate is required not to be too high from the ground, and the bicycle pedals which are supported on the bottom plate and connected with the large chain wheel assembly are required not to be too close to the ground, so that the problem of inconvenience and difficulty in solving is solved. The large chain wheel assembly is connected with the hinge bracket of the backseat assembly through the left movable short shaft pin and the right movable short shaft pin, and the distance between the large chain wheel assembly and the bicycle girder is adjusted through the hinge bracket, so that the problem which is difficult to solve is solved. Simultaneously, when needed, the two movable short shaft pins can be pulled out, the large chain wheel assembly is detached (the bicycle chain connected with the large chain wheel assembly can be temporarily hung at the corresponding position on the backseat assembly without being detached), at the moment, the bicycle becomes a scooter, and therefore the folded hand-pulled trolley is lighter and can be pulled for things. If the electric bicycle booster is mounted on the market, the electric bicycle is formed, and the electric bicycle is flexible in four purposes.
Drawings
FIG. 1 is a schematic view of a bicycle in which the present invention is deployed;
FIG. 2 is a schematic view of the first folded structure of the present invention;
FIG. 3 is one of the partially enlarged schematic structural views of FIG. 2;
FIG. 4 is a second partially enlarged schematic illustration of the structure of FIG. 2;
fig. 5 is a schematic view of the structure of the present invention when folded for use as a hand cart.
Detailed Description
The invention is further illustrated and described below with reference to the accompanying drawings and specific examples:
Referring to fig. 1 to 5, the reference numerals are as follows: 1-front fork assembly, 2-front wheel, 3-front hinge, 4-vehicle girder, 5-rear hinge, 6-chain, 7-flywheel, 8-right pedal, 9-big chain wheel assembly, 10-left pedal, 11-rear wheel, 12-movable short shaft pin, 13-shift fork, 14-rear seat assembly and 15-hinge bracket.
Examples are given; a large chain wheel bicycle capable of being folded twice to be a hand-pulled trolley comprises a front fork assembly 1, a front wheel 2, a front hinge 3, a bicycle girder 4, a rear hinge 5, a chain 6, a flywheel 7, a right pedal 8, a large chain wheel assembly, a left pedal 10, a rear wheel 11, a movable short shaft pin 12, a shifting fork 13, a rear seat assembly 14 and a hinge bracket 15.
The front fork assembly 1 comprises a foldable bicycle front handle and a bicycle front fork with a front wheel 2 connected with a front hinge 3; the rear seat assembly 14 includes a bicycle rear seat and a hinge bracket 15 connecting the rear wheel 11 and the rear hinge 5; the large chain wheel assembly comprises a large chain gear 9, a short shaft, two rolling bearings, a left pedal 10 and a right pedal 8, wherein the two ends of the short shaft are connected with each other, and the shells of the two rolling bearings are respectively connected with a hinge bracket 15 of a rear seat assembly 14 through a left movable short shaft pin 12 and a right movable short shaft pin 12; the flywheel 7 is connected with the rear wheel 11, the front hinge 3 is connected with the rear hinge 5 through the bicycle girder 4, the front end of the front hinge 3 is connected with the front fork assembly 1, and the rear end of the rear hinge 5 is connected with the rear seat assembly 14; the fork 13 is provided on the rear seat assembly 14.
The front end and the rear end of the bicycle girder 4 are respectively connected with the front fork assembly 1 and the rear seat assembly 14 through a front hinge 3 and a rear hinge 5; the large chain gear 9 is connected with the flywheel 7 through the chain 6.
The large chain wheel assembly leaves the bicycle girder 4 to rotate around two movable short shaft pins 12 connected with a hinge bracket 15 of the backseat assembly 14 and vertically leans against the backseat assembly 14, so that the first folding is completed; the front fork assembly 1 is turned right about the front hinge 3 while the rear seat assembly 14 is turned left about the rear hinge 5, completing the second fold.
After folding twice, the bicycle girder 4 becomes the bottom plate of the hand-pulled trolley.
When the bicycle is used as a bicycle, the shell of the rolling bearing of the large chain wheel assembly 9 is buckled on the bicycle girder 4, and the bicycle chain 6 sleeved on the large chain wheel 9 and the flywheel 7 is tight, so that the bicycle can run forwards just by pedaling the left pedal 10 and the right pedal 8 just like a common bicycle.
When the invention is used as a hand-pulled trolley, the large chain gear 9 and the shell of the rolling bearing are released and buckled on the large chain wheel assembly of the bicycle girder 4, so that the large chain wheel assembly leaves the bicycle girder 4 to rotate around two movable short shaft pins 12 connected with a hinge bracket of the backseat assembly 14 to lean against the backseat assembly 14, and then two remarkable effects are achieved: (1) The bicycle girder 4, the front fork assembly 1 and the squat assembly 14 which are connected through the front hinge and the rear hinge can mutually move, if the front fork assembly 1 turns right, the squat assembly 14 turns left, and the bicycle girder 4 is U-shaped when seen from top; the front fork assembly 1 and the rear seat assembly 14 are L-shaped when seen from the side, one side of the bicycle handle is put down, and the front wheel and the rear wheel are added, so that the bicycle is a common hand-pulled trolley. (2) The distance between the large chain gear 9 and the flywheel 7 is reduced by nearly half, and the chain 6 is separated from the control of the flywheel 7 under the self weight and the assistance of the shifting fork 13, so that the trolley can move freely back and forth; if the reverse operation is restored, the wheels can only move in one direction.
In the riding mode, the bicycle is identical to a common bicycle, is more suitable for riding habits of people compared with a bicycle which is a hand-pulled trolley and can be folded into ZL2018 0641939.X, can be safely ridden, can be towed and put on the road, can be used for carrying things in supermarkets and shopping malls, can be used as a parking and riding tool between buses, subways and destinations, and is economical, applicable and not cumbersome.
The bicycle girder 4 is the bottom plate of the hand-pulled trolley, the bottom plate is required not to be too high from the ground, and the bicycle pedals which are connected with the large chain wheel assembly and are supported on the bottom plate are required not to be too close to the ground, so that the problem is troublesome and difficult to solve. The large chain wheel assembly is connected with the hinge bracket of the backseat assembly through the left movable short shaft pin and the right movable short shaft pin, and the distance between the large chain wheel assembly and the bicycle girder 4 is adjusted by arranging the hinge bracket 15, so that the problem which is difficult to solve is solved. Simultaneously, when needed, the two movable short shaft pins can be pulled out, the large chain wheel assembly is detached (the bicycle chain connected with the large chain wheel assembly can be temporarily hung at the corresponding position on the backseat assembly without being detached), at the moment, the bicycle becomes a scooter, and therefore the folded hand-pulled trolley is lighter and can be pulled for things. If the electric bicycle booster is mounted on the market, the electric bicycle is formed, and the electric bicycle is flexible in four purposes.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a big sprocket bicycle that can become hand trolley is folded twice, includes front fork subassembly (1), front wheel (2), front hinge (3), bicycle girder (4), back hinge (5), chain (6), flywheel (7), right pedal (8), big sprocket subassembly, left pedal (10), rear wheel (11), activity minor axis pin (12), shift fork (13), back seat subassembly (14) and hinge bracket (15), its characterized in that: the front fork assembly (1) comprises a foldable bicycle front handle and a bicycle front fork, wherein the front wheel (2) is connected with a front hinge (3); the backseat assembly (14) comprises a bicycle backseat and a hinge bracket (15) for connecting a rear wheel (11) and a rear hinge (5); the large chain wheel assembly comprises a large chain gear (9), a short shaft, two rolling bearings, a left pedal (10) and a right pedal (8) which are connected with the two ends of the short shaft, wherein the shells of the two rolling bearings are respectively connected with a hinge bracket (15) of a rear seat assembly (14) through a left movable short shaft pin (12) and a right movable short shaft pin; the flywheel (7) is connected with a rear wheel (11), the front hinge (3) is connected with the rear hinge (5) through a bicycle girder (4), the front end of the front hinge (3) is connected with the front fork assembly (1), and the rear end of the rear hinge (5) is connected with the rear seat assembly (14); the shifting fork (13) is arranged on the rear seat assembly (14).
2. The large sprocket bicycle of claim 1, which can be stacked twice to be a hand-pulled cart, wherein: the front end and the rear end of the bicycle girder (4) are respectively connected with the front fork assembly (1) and the rear seat assembly (14) through the front hinge (3) and the rear hinge (5); the large chain gear (9) is connected with the flywheel (7) through a chain (6).
3. The large sprocket bicycle of claim 2 which can be stacked twice to be a hand-pulled trolley, wherein: the big chain wheel component leaves the bicycle girder (4) to rotate around two movable short shaft pins (12) connected with a hinge bracket (15) of the backseat component (14) and vertically leans against the backseat component (14), so that the first folding is completed; the front fork assembly (1) rotates right around the front hinge (3) and the rear seat assembly (14) rotates left around the rear hinge (5), so that the second folding is completed.
4. A large sprocket bicycle as set forth in claim 3 which can be stacked twice to form a hand-pulled cart, wherein: after being folded twice, the bicycle girder (4) is a bottom plate of the hand-pulled trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410335111.1A CN117963058A (en) | 2024-03-22 | 2024-03-22 | Large chain wheel bicycle capable of being folded twice and used as hand-pulled trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410335111.1A CN117963058A (en) | 2024-03-22 | 2024-03-22 | Large chain wheel bicycle capable of being folded twice and used as hand-pulled trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117963058A true CN117963058A (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410335111.1A Pending CN117963058A (en) | 2024-03-22 | 2024-03-22 | Large chain wheel bicycle capable of being folded twice and used as hand-pulled trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117963058A (en) |
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2024
- 2024-03-22 CN CN202410335111.1A patent/CN117963058A/en active Pending
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