CN219544991U - Sleeve type tri-folding portable bicycle - Google Patents
Sleeve type tri-folding portable bicycle Download PDFInfo
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- CN219544991U CN219544991U CN202320617735.3U CN202320617735U CN219544991U CN 219544991 U CN219544991 U CN 219544991U CN 202320617735 U CN202320617735 U CN 202320617735U CN 219544991 U CN219544991 U CN 219544991U
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Abstract
The utility model provides a sleeve type three-folding portable bicycle, which comprises: the front rod mechanism comprises a handlebar assembly, a front wheel assembly and a telescopic front rod, one end of the telescopic front rod is connected with the front wheel assembly, and the other end of the telescopic front rod is connected with the handlebar assembly; the rear rod mechanism comprises a saddle assembly, a movable assembly, a rear wheel assembly and a telescopic rear rod of a sleeve, the telescopic rear rod of the sleeve is fixedly connected with the rear wheel assembly, one end of the movable assembly is connected with the telescopic rear rod of the sleeve, and the other end of the movable assembly is connected with the saddle assembly; one end of the main beam is arranged on the telescopic front rod of the sleeve, and the other end of the main beam is connected with the telescopic rear rod of the sleeve; one end of the movable mechanism is arranged on the telescopic front rod of the sleeve, and the other end of the movable mechanism is arranged on the telescopic rear rod of the sleeve; the driving mechanism comprises two pedals, a secondary transmission device and a fixing assembly, wherein the secondary transmission device is connected with the telescopic rear rod of the sleeve through the fixing assembly. The sleeve type three-fold portable bicycle has the advantages of visual and rapid folding mode, small structure and higher speed.
Description
Technical Field
The utility model belongs to the technical field of portable folding bicycles, and particularly relates to a sleeve type tri-folding portable bicycle.
Background
The folding bicycle is a bicycle capable of being adjusted to be stored, has the characteristics of light weight, portability, foldability and the like, is usually carried by a single hand within 12 kg, can be carried about, avoids being stolen at the roadside like a mountain bike road bike, and can be easily passed through subway security inspection due to the fact that a battery does not exist, thereby bringing great convenience to people in life.
At present, most folding bicycles on the market have a laborious folding mode and a complex folding process, and the folded bicycle is large in shape occupation space and not easy to carry, so that a user can use the folded bicycle as a common bicycle after buying the folded bicycle, the utilization rate is low, and the folding function is abandoned; in addition, the design of the partially folded bicycle is relatively small and exquisite, so that the speed of the bicycle is limited, and the daily requirements cannot be met.
That is, how to provide a folding portable bicycle with intuitive and rapid folding manner, small structure and faster speed is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to solve the technical problems that the folding process of the folding bicycle in the prior art is complicated, the folded bicycle is large in size and not easy to carry, the speed of the bicycle is limited due to the small design, and the like.
In order to solve the above problems, the present utility model provides a sleeve type three-fold portable bicycle, comprising: the front rod mechanism comprises a handlebar assembly, a front wheel assembly and a sleeve telescopic front rod, one end of the sleeve telescopic front rod is fixedly connected with the front wheel assembly, and the other end of the sleeve telescopic front rod is movably connected with the handlebar assembly; the rear rod mechanism comprises a saddle assembly, a movable assembly, a rear wheel assembly and a telescopic rear rod, and one end of the telescopic rear rod is fixedly connected with the rear wheel assembly; one end of the movable assembly is connected with the other end of the telescopic rear rod of the sleeve, and the other end of the movable assembly is connected with the saddle assembly and used for rotating the saddle assembly; one end of the main beam is fixed on the telescopic front rod of the sleeve, and the other end of the main beam is movably connected with the other end of the telescopic rear rod of the sleeve; one end of the movable mechanism is arranged on the telescopic front rod of the sleeve, and the other end of the movable mechanism is arranged on the telescopic rear rod of the sleeve; the driving mechanism comprises two pedals, a secondary transmission device and a fixing assembly, wherein the two pedals are respectively arranged on two sides of the fixing assembly, one end of the secondary transmission device is fixedly connected with the telescopic rear rod of the sleeve through the fixing assembly, and the other end of the secondary transmission device is connected with the rear wheel assembly.
The utility model has the following technical scheme: the saddle assembly comprises a saddle and a first connecting rod, wherein the saddle is fixedly connected with one end of the first connecting rod, and the other end of the first connecting rod is connected with the other end of the movable assembly.
The utility model has the following technical scheme: the movable assembly comprises a first connecting piece, a second connecting piece, a sleeve and a link movable piece, one end of the first connecting piece is fixed at a connecting point of the main beam and the telescopic rear rod of the sleeve, the other end of the first connecting piece is movably connected with one end of the second connecting piece, the other end of the second connecting piece is movably connected with the sleeve, and the sleeve is sleeved on the first connecting rod; one end of the link movable piece is provided with a clamp, the clamp is sleeved on the telescopic rear rod of the sleeve, and the other end of the link movable piece is movably connected with the other end of the first connecting rod.
The utility model has the following technical scheme: the movable mechanism comprises a first fixing part, a second fixing part and a folding part, one end of the first fixing part is sleeved on the telescopic front rod of the sleeve, the other end of the first fixing part is movably connected with one end of the folding part, the other end of the folding part is movably connected with one end of the second fixing part, and the other end of the second fixing part is sleeved on the telescopic rear rod of the sleeve.
The utility model has the following technical scheme: the folding part comprises a third connecting piece, a fourth connecting piece and a fifth connecting piece, one end of the third connecting piece is movably connected with the other end of the first fixing part, the other end of the third connecting piece is movably connected with one end of the fourth connecting piece, the other end of the fourth connecting piece is movably connected with one end of the fifth connecting piece, and the other end of the fifth connecting piece is movably connected with one end of the second fixing part.
The utility model has the following technical scheme: the rear wheel assembly comprises a rear wheel, a rear wheel shaft and a second clamping part, one end of the second clamping part is fixedly connected with one end of the telescopic rear rod of the sleeve, and the rear wheel is connected with the other end of the second clamping part through the rear wheel shaft.
The utility model has the following technical scheme: the fixed subassembly includes third connecting rod and fourth connecting rod, the one end of third connecting rod is fixed in on the flexible back pole of sleeve, the other end of third connecting rod with second grade transmission is connected, the one end of fourth connecting rod is fixed in on the flexible back pole of sleeve, the other end of fourth connecting rod with second grade transmission is connected, the third connecting rod with fourth connecting rod parallels, the third connecting rod with the distance of trailing axle is greater than fourth connecting rod with the distance of trailing axle.
The utility model has the following technical scheme: the secondary transmission device comprises a driving chain, a driven chain, a driving shaft, a driven shaft, a chain disc, a driving chain wheel, a driven chain wheel and a flywheel, wherein one end of the driving shaft passes through the center part of the chain disc to be connected with the other end of the third connecting rod, and two pedals are symmetrically distributed on two sides of the chain disc and correspondingly fixed on two end parts of the driving shaft; one end of the driven shaft sequentially passes through the driven sprocket and the driving sprocket to be connected with the other end of the fourth connecting rod, and the other end of the driven shaft is propped against the driven sprocket; the flywheel is connected with one end of the rear wheel shaft and is positioned at the outer side of the second clamping part, and the other end of the rear wheel shaft is propped against the second clamping part; the chain plate and the driving chain wheel are positioned on a first plane, the driven chain wheel and the flywheel are positioned on a second plane, and the first plane is parallel to the second plane; one end of the driving chain is sleeved on the outer side of the chain disc, the other end of the driving chain is sleeved on the outer side of the driving chain wheel, one end of the driven chain is sleeved on the outer side of the driven chain wheel, and the other end of the driven chain is sleeved on the outer side of the flywheel.
The utility model has the following technical scheme: the handle assembly comprises a handle and a second connecting rod, the handle is fixedly connected with one end of the second connecting rod, and the other end of the second connecting rod is movably connected with the other end of the telescopic front rod.
The utility model has the following technical scheme: the front wheel assembly comprises a front wheel, a front wheel shaft and a first clamping part, one end of the first clamping part is fixedly connected with one end of the telescopic front rod of the sleeve, and the front wheel is connected with the other end of the first clamping part through the front wheel shaft.
The beneficial effects are that:
the sleeve type three-folding portable bicycle comprises a front rod mechanism, a rear rod mechanism, a main beam, a movable mechanism and a driving mechanism, wherein the front rod is telescopic through a sleeve in the front rod mechanism, the rear rod is telescopic through a sleeve telescopic principle in the rear rod mechanism, the bicycle can be vertically telescopic through a sleeve telescopic principle in the rear rod mechanism, the volume form is smaller, and materials during manufacturing are saved; the movable assembly is connected with the telescopic rear rod of the sleeve and the saddle assembly, and the saddle assembly is retracted downwards by pulling the movable assembly upwards, so that the saddle assembly is clung to the telescopic rear rod of the sleeve, and the folding occupied space is further reduced; the movable mechanism is connected with the telescopic front rod and the telescopic rear rod, and the movable mechanism can be pulled upwards, so that one end of the telescopic rear rod rotates by taking the other end of the main beam as the center of a circle, the telescopic front rod and the telescopic rear rod are mutually tightly attached, and the folding space of the bicycle is reduced; the bicycle transmission ratio can be increased through the secondary transmission device in the driving mechanism, so that the bicycle has faster moving speed and more exquisite structure, and the defect of small speed of the small-wheel bicycle is overcome. The sleeve type three-folding portable bicycle is folded for three times through the sleeve telescopic front rod, the sleeve telescopic rear rod, the movable assembly and the movable mechanism, the folding mode is simple and quick, and the folded bicycle is smaller in size and convenient to carry.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a partial block diagram of the present utility model;
FIG. 3 is another partial structure of the present utility model;
FIG. 4 is a schematic view of the folding direction of the bicycle of the present utility model;
FIG. 5 is a schematic view of the bicycle of the present utility model after being folded;
reference numerals:
1. a front rod mechanism; 11. a handle assembly; 111. a handlebar; 112. a second connecting rod; 12. a front wheel assembly; 121. a front wheel; 122. a front axle; 123. a first clamping part; 13. a sleeve telescopic front rod;
2. a rear lever mechanism; 21. a saddle assembly; 211. a saddle; 212. a first connecting rod; 22. a movable assembly; 221. a first connector; 222. a second connector; 223. a sleeve; 224. linking the movable pieces; 23. a rear wheel assembly; 231. a rear wheel; 232. a rear axle; 233. a second clamping portion; 24. a telescopic rear rod;
3. a main beam;
4. a movable mechanism; 41. a first fixing portion; 42. a second fixing portion; 43. a folding part; 431. a third connecting member; 432. a fourth connecting member; 433. a fifth connecting member;
5. a driving mechanism; 51. a pedal; 52. a secondary transmission; 521. a driving chain; 522. a driven chain; 523. a driving shaft; 524. a driven shaft; 525. a chain plate; 526. a drive sprocket; 527. a driven sprocket; 528. a flywheel; 53. a fixing assembly; 531. a third connecting rod; 532. and a fourth connecting rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.
Embodiment one:
as shown in fig. 1 to 5, a first embodiment provides a sleeve-type three-fold portable bicycle, comprising: the front rod mechanism 1 comprises a handle assembly 11, a front wheel assembly 12 and a telescopic front rod 13, wherein one end of the telescopic front rod 13 is fixedly connected with the front wheel assembly 12, and the other end of the telescopic front rod 13 is movably connected with the handle assembly 11; the rear rod mechanism 2 comprises a saddle assembly 21, a movable assembly 22, a rear wheel assembly 23 and a telescopic rear rod 24, wherein one end of the telescopic rear rod 24 is fixedly connected with the rear wheel assembly 23; one end of the movable assembly 22 is connected with the other end of the telescopic rear rod 24, and the other end of the movable assembly 22 is connected with the saddle assembly 21 and is used for rotating the saddle assembly 21; one end of the main beam 3 is fixed on the telescopic front rod 13, and the other end of the main beam is movably connected with the other end of the telescopic rear rod 24; a movable mechanism 4, one end of which is arranged on the telescopic front rod 13 of the sleeve, and the other end of which is arranged on the telescopic rear rod 24 of the sleeve; the driving mechanism 5 comprises two pedals 51, a secondary transmission device 52 and a fixing component 53, wherein the two pedals 51 are respectively arranged on two sides of the fixing component 53, one end of the secondary transmission device 52 is fixedly connected with the telescopic rear rod 24 through the fixing component 53, and the other end of the secondary transmission device 52 is connected with the rear wheel component 23.
Specifically, the sleeve type three-folding portable bicycle provided by the utility model comprises a front rod mechanism 1, a rear rod mechanism 2, a main beam 3, a movable mechanism 4 and a driving mechanism 5, wherein the bicycle can be vertically stretched by the sleeve stretching principle of a sleeve stretching front rod 13 in the front rod mechanism 1 and a sleeve stretching rear rod 24 in the rear rod mechanism 2, so that the volume form is smaller, and the material during manufacturing is saved; the movable assembly 22 is connected with the telescopic rear rod 24 and the saddle assembly 21, and the saddle assembly 21 can be contracted downwards by pulling the movable assembly 22 upwards, so that the saddle assembly 21 is clung to the telescopic rear rod 24, and the folding occupied space is further reduced; the movable mechanism 4 is connected with the sleeve telescopic front rod 13 and the sleeve telescopic rear rod 24, and one end of the sleeve telescopic rear rod 24 rotates by taking the other end of the main beam 3 as the circle center through pulling the movable mechanism 4 upwards, so that the sleeve telescopic front rod 13 and the sleeve telescopic rear rod 24 are mutually tightly attached, and the folding space of the bicycle is reduced; by means of the secondary transmission 52 in the driving mechanism 5, the transmission ratio of the bicycle can be increased, so that the bicycle is faster in movement speed and more exquisite in structure, and the defect of small speed of the small-wheel bicycle is overcome. The sleeve type three-folding portable bicycle is folded for three times through the sleeve telescopic front rod 13, the sleeve telescopic rear rod 24, the movable assembly 22 and the movable mechanism 4, the folding mode is simple and quick, and the folded bicycle is smaller in size and convenient to carry.
As shown in fig. 4, in the practical design and use process of the sleeve type three-fold portable bicycle of the present utility model, folding is mainly completed three times, when folding for the first time, the movable mechanism 4 is pulled upwards, so that the sleeve telescopic front rod 13 and the sleeve telescopic rear rod 24 are close to each other and are in a vertical state after folding, at this time, the front wheel assembly 12 and the rear wheel assembly 23 are tightly attached together to the maximum extent, and then the handle assembly 11 is rotated 180 ° around the end part of the sleeve telescopic front rod 13, so that the handle assembly 11 is more compact against the bicycle body; when the seat assembly is folded for the second time, the movable assembly 22 is pulled upwards, and the seat assembly 21 is contracted downwards at the moment, so that the seat assembly 21 can be rotated downwards to a proper position, the seat assembly 21 is more closely attached to the telescopic rear rod 24 of the sleeve, and the occupied space for folding is reduced; when folding for the third time, utilize sleeve scalable principle, with sleeve flexible front rod 13 and sleeve flexible back pole 24 fold downwards to shorten sleeve flexible front rod 13 and sleeve flexible back pole 24's length, further reduce bicycle folding occupation space.
It should be noted that all the movable connections mentioned in the present utility model may be movable connections by pin connection, for example, the other end of the telescopic front rod 13 is movably connected to the handlebar assembly 11, or the other end of the telescopic front rod 13 is movably connected to the handlebar assembly 11 by a pin.
In some possible embodiments, the saddle assembly 21 includes a saddle 211 and a first connecting rod 212, wherein the saddle 211 is fixedly connected to one end of the first connecting rod 212, and the other end of the first connecting rod 212 is connected to the other end of the movable assembly 22.
This is because, the saddle assembly 21 includes the saddle 211 and the first connecting rod 212, the saddle 211 is fixedly connected with one end of the first connecting rod 212, and the other end of the first connecting rod 212 is connected with the other end of the movable assembly 22, so that the movable assembly 22 drives the other end of the first connecting rod 212 to move upwards when moving, and further, one end of the first connecting rod 212 rotates downwards with the other end of the first connecting rod 212 as the center of a circle, and synchronously drives the saddle 211 to rotate downwards, so as to complete the downward shrinkage of the saddle 211.
In some possible embodiments, the movable assembly 22 includes a first connecting piece 221, a second connecting piece 222, a sleeve 223, and a link movable piece 224, where one end of the first connecting piece 221 is fixed at a connection point of the main beam 3 and the telescopic rear rod 24, the other end of the first connecting piece 221 is movably connected with one end of the second connecting piece 222, the other end of the second connecting piece 222 is movably connected with the sleeve 223, and the sleeve 223 is sleeved on the first connecting rod 212; one end of the link movable element 224 is provided with a clamp, the clamp is sleeved on the telescopic rear rod 24, and the other end of the link movable element 224 is movably connected with the other end of the first connecting rod 212.
It will be appreciated by those skilled in the art that one end of the first connecting member 221 is fixed at the connection point of the main beam 3 and the telescopic rear rod 24, the other end of the first connecting member 221 is movably connected with one end of the second connecting member 222, the other end of the second connecting member 222 is movably connected with the sleeve 223, the sleeve 223 is sleeved on the first connecting rod 212, one end of the movable connecting member 224 is provided with a clamp, the clamp is sleeved on the telescopic rear rod 24, the other end of the movable connecting member 224 is movably connected with the other end of the first connecting rod 212, when the bicycle is being opened, one end of the movable connecting member 224 is fixed on the telescopic rear rod 24 through the clamp, so that one end of the triangle enclosed by the second connecting member 222, the telescopic rear rod 24 and the first connecting rod 212 is fixed, and a stable triangle structure is formed to support the saddle 211, and the sleeve 223 sleeved on the first connecting rod 212 can limit the downward movement of the other end 212 relative to the movable connecting rod 224. When the bicycle needs to be folded, one end of the link movable element 224 can move along the telescopic rear rod 24 by breaking the clamp, at this time, by pulling the link movable element 224 upwards, one end of the link movable element 224 can slide along the telescopic rear rod 24 in a homeotropic direction, and the other end of the link movable element 224 drives one end of the first connecting rod 212 to rotate downwards with the other end of the first connecting rod 212 as a circle center, so that the saddle 211 is synchronously driven to rotate downwards, and the saddle 211 is contracted downwards.
In some possible embodiments, the movable mechanism 4 includes a first fixing portion 41, a second fixing portion 42, and a folding portion 43, where one end of the first fixing portion 41 is sleeved on the telescopic front rod 13, the other end of the first fixing portion 41 is movably connected with one end of the folding portion 43, the other end of the folding portion 43 is movably connected with one end of the second fixing portion 42, and the other end of the second fixing portion 42 is sleeved on the telescopic rear rod 24.
It will be appreciated by those skilled in the art that one end of the first fixing portion 41 is sleeved on the telescopic front rod 13, the other end of the first fixing portion 41 is movably connected with one end of the folding portion 43, the other end of the folding portion 43 is movably connected with one end of the second fixing portion 42, the other end of the second fixing portion 42 is sleeved on the telescopic rear rod 24, and by folding the folding portion 43, opposite acting forces are applied to the first fixing portion 41 and the second fixing portion 42 by the two ends of the folding portion 43, at this time, one end of the telescopic rear rod 24 is pulled to rotate towards the telescopic front rod 13 with the other end of the main beam 3 as a center of a circle, so that the telescopic front rod 13 and the telescopic rear rod 24 are close to each other, and folding is completed.
In some possible embodiments, the folding portion 43 includes a third connecting member 431, a fourth connecting member 432, and a fifth connecting member 433, one end of the third connecting member 431 is movably connected to the other end of the first fixing portion 41, the other end of the third connecting member 431 is movably connected to one end of the fourth connecting member 432, the other end of the fourth connecting member 432 is movably connected to one end of the fifth connecting member 433, and the other end of the fifth connecting member 433 is movably connected to one end of the second fixing portion 42.
This is because the folding portion 43 includes the third connecting piece 431, the fourth connecting piece 432 and the fifth connecting piece 433, the third connecting piece 431, the fourth connecting piece 432 and the fifth connecting piece 433 are movably connected with each other, the movable connection may be a pin manner, so that the folding portion 43 may form an inverted U-shaped foldable movable structure with a pin, by pulling the fourth connecting piece 432 upward, both ends of the fourth connecting piece pull the other end of the third connecting piece 431 and one end of the fifth connecting piece 433 respectively to synchronously move upward, and one end of the third connecting piece 431 and the other end of the fifth connecting piece 433 move downward, so that the third connecting piece 431 and the fifth connecting piece 433 keep a vertical form, and the first fixing portion 41 and the second fixing portion 42 are driven to be close to each other, so that the telescopic front rod 13 and the telescopic rear rod 24 of the sleeve are close to each other, and the folding is completed. Also, the folded portion 43 pinned in the inverted U-shape can be made to have a tolerance fit at the time of processing so that it does not easily recover the original shape before folding and can be put into a backpack after folding.
In some possible embodiments, the rear wheel assembly 23 includes a rear wheel 231, a rear wheel axle 232, and a second clamping portion 233, one end of the second clamping portion 233 is fixedly connected to one end of the telescopic rear rod 24, and the rear wheel 231 is connected to the other end of the second clamping portion 233 through the rear wheel axle 232; the front wheel assembly 12 comprises a front wheel 121, a front wheel axle 122 and a first clamping part 123, one end of the first clamping part 123 is fixedly connected with one end of the telescopic front rod 13, and the front wheel 121 is connected with the other end of the first clamping part 123 through the front wheel axle 122.
As will be appreciated by those skilled in the art, by the rear wheel assembly 23 including the rear wheel 231, the rear wheel axle 232 and the second clamping portion 233, the front wheel assembly 12 includes the front wheel 121, the front wheel axle 122 and the first clamping portion 123, the front wheel 121 and the rear wheel 231 can be synchronously rotated about the front wheel axle 122 and the rear wheel axle 232, respectively, to drive the bicycle to travel.
In some possible embodiments, the fixing assembly 53 includes a third connecting rod 531 and a fourth connecting rod 532, one end of the third connecting rod 531 is fixed on the telescopic rear rod 24, the other end of the third connecting rod 531 is connected to the secondary transmission device 52, one end of the fourth connecting rod 532 is fixed on the telescopic rear rod 24, the other end of the fourth connecting rod 532 is connected to the secondary transmission device 52, the third connecting rod 531 is parallel to the fourth connecting rod 532, and the distance between the third connecting rod 531 and the rear axle 232 is greater than the distance between the fourth connecting rod 532 and the rear axle 232.
It will be appreciated by those skilled in the art that by the securing assembly 53 including the third and fourth connecting rods 531, 532, the secondary transmission 52 may be secured to the telescopic rear rod 24 and the stability of the secondary transmission 52 may be increased.
In some possible embodiments, the secondary transmission device 52 includes a driving chain 521, a driven chain 522, a driving shaft 523, a driven shaft 524, a chain plate 525, a driving sprocket 526, a driven sprocket 527, and a flywheel 528, one end of the driving shaft 523 is connected to the other end of the third connecting rod 531 through the central portion of the chain plate 525, and two pedals 51 are symmetrically distributed on two sides of the chain plate 525 and are correspondingly fixed on two ends of the driving shaft 523; one end of the driven shaft 524 sequentially passes through the driven sprocket 527 and the driving sprocket 526 to be connected with the other end of the fourth connecting rod 532, and the other end of the driven shaft 524 abuts against the driven sprocket 527, wherein the other end of the driven shaft 524 may abut against the driven sprocket 527 by arranging a limit part such as a nut at the other end of the driven shaft 524; the flywheel 528 is connected to one end of the rear axle 232 and located outside the second clamping portion 233, and the other end of the rear axle 232 abuts against the second clamping portion 233, where a limit portion such as a nut may be disposed at the other end of the rear axle 232, so that the other end of the rear axle 232 abuts against the second clamping portion 233; the sprocket 525 and the drive sprocket 526 lie in a first plane, the driven sprocket 527 and the flywheel 528 lie in a second plane, the first plane being parallel to the second plane; one end of the driving chain 521 is sleeved outside the chain disk 525, the other end of the driving chain 521 is sleeved outside the driving chain wheel 526, one end of the driven chain 522 is sleeved outside the driven chain wheel 527, and the other end of the driven chain 522 is sleeved outside the flywheel 528.
This is because, the secondary transmission device 52 includes a driving chain 521, a driven chain 522, a driving shaft 523, a driven shaft 524, a chain plate 525, a driving sprocket 526, a driven sprocket 527 and a flywheel 528, so as to form a high-efficiency secondary transmission structure, the driving shaft 523 is driven to rotate by the pedaling of the user's foot 51, the chain plate 525 is driven to rotate, one end of the driving chain 521 outside the 525 is driven to move, the other end of the driving chain 521 is driven to move, the driving sprocket 526 is driven to rotate, the driven shaft 524 is driven to rotate, the driven sprocket 527 is driven to rotate, one end of the driven chain 522 is driven to move, the other end of the driven chain 522 is driven to move, the flywheel 528 is driven to rotate, the rear wheel shaft 232 is driven to rotate, and the rear wheel 231 is driven to rotate, and the front wheel 121 is synchronously rotated. The secondary transmission 52 employed in the present utility model increases the bicycle transmission ratio, and is faster and more compact.
In some possible embodiments, the handle assembly 11 includes a handle 111 and a second connecting rod 112, where the handle 111 is fixedly connected to one end of the second connecting rod 112, and the other end of the second connecting rod 112 is movably connected to the other end of the telescopic front rod 13.
This is because, through handlebar assembly 11 including handlebar 111 and second connecting rod 112, handlebar 111 with the one end fixed connection of second connecting rod 112, the other end of second connecting rod 112 with the other end swing joint of sleeve flexible front rod 13 can make the one end of second connecting rod 112 rotate with the other end of sleeve flexible front rod 13 as the centre of a circle, and then makes the handlebar 111 with the one end fixed connection of second connecting rod 112 accomplish 180 folding towards sleeve flexible front rod 13.
Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the above examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit of the corresponding technical solutions. Are intended to be encompassed within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A sleeve-type tri-folding portable bicycle, comprising:
the front rod mechanism (1) comprises a handle assembly (11), a front wheel assembly (12) and a sleeve telescopic front rod (13), one end of the sleeve telescopic front rod (13) is fixedly connected with the front wheel assembly (12), and the other end of the sleeve telescopic front rod (13) is movably connected with the handle assembly (11);
the rear rod mechanism (2) comprises a saddle assembly (21), a movable assembly (22), a rear wheel assembly (23) and a telescopic rear rod (24), wherein one end of the telescopic rear rod (24) is fixedly connected with the rear wheel assembly (23); one end of the movable assembly (22) is connected with the other end of the telescopic rear rod (24), and the other end of the movable assembly (22) is connected with the saddle assembly (21) and used for rotating the saddle assembly (21);
one end of the main beam (3) is fixed on the telescopic front rod (13) of the sleeve, and the other end of the main beam is movably connected with the other end of the telescopic rear rod (24);
one end of the movable mechanism (4) is arranged on the telescopic front rod (13) of the sleeve, and the other end of the movable mechanism is arranged on the telescopic rear rod (24) of the sleeve;
the driving mechanism (5) comprises two pedals (51), a secondary transmission device (52) and a fixing assembly (53), wherein the two pedals (51) are respectively arranged on two sides of the fixing assembly (53), one end of the secondary transmission device (52) is fixedly connected with the telescopic rear rod (24) through the fixing assembly (53), and the other end of the secondary transmission device (52) is connected with the rear wheel assembly (23).
2. The telescopic three-fold portable bicycle of claim 1, wherein:
the saddle assembly (21) comprises a saddle (211) and a first connecting rod (212), wherein the saddle (211) is fixedly connected with one end of the first connecting rod (212), and the other end of the first connecting rod (212) is connected with the other end of the movable assembly (22).
3. The sleeve-type tri-folding portable bicycle of claim 2, wherein:
the movable assembly (22) comprises a first connecting piece (221), a second connecting piece (222), a sleeve (223) and a link movable piece (224), one end of the first connecting piece (221) is fixed at the connecting point position of the main beam (3) and the telescopic rear rod (24) of the sleeve, the other end of the first connecting piece (221) is movably connected with one end of the second connecting piece (222), the other end of the second connecting piece (222) is movably connected with the sleeve (223), and the sleeve (223) is sleeved on the first connecting rod (212); one end of the link movable element (224) is provided with a clamp, the clamp is sleeved on the telescopic rear rod (24), and the other end of the link movable element (224) is movably connected with the other end of the first connecting rod (212).
4. A sleeve-type three-fold portable bicycle as claimed in claim 3, wherein:
the movable mechanism (4) comprises a first fixing part (41), a second fixing part (42) and a folding part (43), one end of the first fixing part (41) is sleeved on the telescopic front rod (13), the other end of the first fixing part (41) is movably connected with one end of the folding part (43), the other end of the folding part (43) is movably connected with one end of the second fixing part (42), and the other end of the second fixing part (42) is sleeved on the telescopic rear rod (24).
5. The telescopic three-fold portable bicycle of claim 4, wherein:
the folding part (43) comprises a third connecting piece (431), a fourth connecting piece (432) and a fifth connecting piece (433), one end of the third connecting piece (431) is movably connected with the other end of the first fixing part (41), the other end of the third connecting piece (431) is movably connected with one end of the fourth connecting piece (432), the other end of the fourth connecting piece (432) is movably connected with one end of the fifth connecting piece (433), and the other end of the fifth connecting piece (433) is movably connected with one end of the second fixing part (42).
6. The telescopic three-fold portable bicycle of claim 5, wherein:
the rear wheel assembly (23) comprises a rear wheel (231), a rear wheel shaft (232) and a second clamping part (233), one end of the second clamping part (233) is fixedly connected with one end of the telescopic rear rod (24), and the rear wheel (231) is connected with the other end of the second clamping part (233) through the rear wheel shaft (232).
7. The telescopic three-fold portable bicycle of claim 6, wherein:
the fixed subassembly (53) includes third connecting rod (531) and fourth connecting rod (532), the one end of third connecting rod (531) is fixed in on sleeve flexible back pole (24), the other end of third connecting rod (531) with two-stage transmission (52) are connected, the one end of fourth connecting rod (532) is fixed in on sleeve flexible back pole (24), the other end of fourth connecting rod (532) with two-stage transmission (52) are connected, third connecting rod (531) with fourth connecting rod (532) are parallel, third connecting rod (531) with the distance of rear axle (232) is greater than fourth connecting rod (532) with the distance of rear axle (232).
8. The sleeve-type tri-fold portable bicycle of claim 7, wherein:
the secondary transmission device (52) comprises a driving chain (521), a driven chain (522), a driving shaft (523), a driven shaft (524), a chain disc (525), a driving chain wheel (526), a driven chain wheel (527) and a flywheel (528), wherein one end of the driving shaft (523) passes through the central part of the chain disc (525) to be connected with the other end of the third connecting rod (531), and two pedals (51) are symmetrically distributed on two sides of the chain disc (525) and correspondingly fixed on two end parts of the driving shaft (523); one end of the driven shaft (524) sequentially passes through the driven sprocket (527) and the driving sprocket (526) to be connected with the other end of the fourth connecting rod (532), and the other end of the driven shaft (524) is propped against the driven sprocket (527); the flywheel (528) is connected with one end of the rear wheel shaft (232) and is positioned outside the second clamping part (233), and the other end of the rear wheel shaft (232) is propped against the second clamping part (233); the chain wheel (525) and the driving chain wheel (526) are positioned on a first plane, the driven chain wheel (527) and the flywheel (528) are positioned on a second plane, and the first plane is parallel to the second plane; one end of the driving chain (521) is sleeved on the outer side of the chain plate (525), the other end of the driving chain (521) is sleeved on the outer side of the driving chain wheel (526), one end of the driven chain (522) is sleeved on the outer side of the driven chain wheel (527), and the other end of the driven chain (522) is sleeved on the outer side of the flywheel (528).
9. The sleeve-type tri-fold portable bicycle of claim 8, wherein:
the handle assembly (11) comprises a handle (111) and a second connecting rod (112), wherein the handle (111) is fixedly connected with one end of the second connecting rod (112), and the other end of the second connecting rod (112) is movably connected with the other end of the telescopic front rod (13).
10. The telescopic three-fold portable bicycle of claim 9, wherein:
the front wheel assembly (12) comprises a front wheel (121), a front wheel shaft (122) and a first clamping part (123), one end of the first clamping part (123) is fixedly connected with one end of the telescopic front rod (13), and the front wheel (121) is connected with the other end of the first clamping part (123) through the front wheel shaft (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320617735.3U CN219544991U (en) | 2023-03-27 | 2023-03-27 | Sleeve type tri-folding portable bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320617735.3U CN219544991U (en) | 2023-03-27 | 2023-03-27 | Sleeve type tri-folding portable bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219544991U true CN219544991U (en) | 2023-08-18 |
Family
ID=87731284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320617735.3U Active CN219544991U (en) | 2023-03-27 | 2023-03-27 | Sleeve type tri-folding portable bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219544991U (en) |
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2023
- 2023-03-27 CN CN202320617735.3U patent/CN219544991U/en active Active
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