CN210027755U - Folding bicycle - Google Patents
Folding bicycle Download PDFInfo
- Publication number
- CN210027755U CN210027755U CN201920316431.7U CN201920316431U CN210027755U CN 210027755 U CN210027755 U CN 210027755U CN 201920316431 U CN201920316431 U CN 201920316431U CN 210027755 U CN210027755 U CN 210027755U
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- China
- Prior art keywords
- bracket
- support
- rear end
- end support
- wheel
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Abstract
The utility model provides a folding bicycle, include: the bicycle frame is formed by folding a rear end support, an intermediate support and a front end support, the rear end support, the intermediate support and the front end support are respectively arc-shaped, two ends of the intermediate support are respectively hinged with the rear end support and the front end support and are fixed through pins, the circle centers of the intermediate support and the front end support face towards one side of a rear wheel, the top end of the rear end support is hinged with a saddle, the lower end of the rear end support is rotatably connected with the rear wheel, pedals are arranged at the lower position of the rear end support and are in transmission connection with the rear wheel through a transmission device, the upper end of the front end support is hinged with a handlebar and is fixed through pins, the lower end of the front end support is hinged with a wheel connecting frame, the wheel connecting frame is also arc-shaped, and the other end of the wheel connecting frame is rotatably connected with the front wheel. The utility model discloses be convenient for fold, and folding back volume is very little, has practiced thrift occupation space greatly.
Description
Technical Field
The utility model relates to the technical field of bicycles, in particular to folding bicycle.
Background
Most of the bicycles can not be folded at present, and the occupied space is larger when the bicycles are parked. Foldable bicycles in the market generally adopt transverse folding, folding joints are generally positioned in one or more lower tubes, upper tubes, seat tubes and head tubes or steering tubes of a bicycle frame, and a folding mechanism of the foldable bicycle can achieve a certain folding effect; however, the folding mechanism still has large volume after being folded and occupies large space.
Therefore the utility model discloses a folding bicycle, bicycle simple structure, design benefit, the frame is articulated to be constituteed by three arc support, is convenient for fold, and folding back volume is very little, has practiced thrift occupation space greatly.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a foldable bicycle, which is easy to fold, has a very small size after being folded, and greatly saves the occupied space.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a folding bicycle, comprising: the bicycle comprises a frame, a saddle, handlebars, pedals, front wheels, rear wheels and a transmission device, wherein the frame is formed by folding a rear end support, an intermediate support and a front end support, the rear end support, the intermediate support and the front end support are respectively arc-shaped, two ends of the intermediate support are respectively hinged with the rear end support and the front end support and are fixed through pins, the circle centers of the rear end support, the intermediate support and the front end support face one side of the rear wheels, the top end of the rear end support is hinged with the saddle, the lower end of the rear end support is rotatably connected with the rear wheels, the pedals are arranged at the lower position of the rear end support and are in transmission connection with the rear wheels through the transmission device, the upper end of the front end support is hinged with the handlebars and is fixed through pins, the lower end of the front end support is hinged with a wheel connecting frame, the wheel connecting frame is also arc-shaped, and the other end of the wheel connecting frame is rotatably connected with the front wheel.
Further, the rear end support comprises a first rear end side support and a second rear end side support, the first rear end side support and the second rear end side support are symmetrically installed on two sides of the rear wheel respectively, the lower ends of the first rear end side support and the second rear end side support are rotatably connected with the rear wheel through a rear axle, and a connecting rod is fixedly connected between upper ends of the first rear end side support and the second rear end side support in an upper position.
Furthermore, the pedals comprise a left pedal and a right pedal, the left pedal and the right pedal are connected through a connecting shaft and drive the connecting shaft to rotate, and the connecting shaft drives the rear wheel to rotate through the transmission device.
Furthermore, the transmission device is chain transmission or transmission of more than two groups of bevel gears and connecting rods.
Further, the seat is also curved, and the center of the arc is directed downward, and the seat is turned backward and accommodated between the first rear end side bracket and the second rear end side bracket.
Furthermore, the corresponding circle radiuses of the rear end support, the front end support, the middle support and the saddle are the same.
Further, the intermediate strut is single, the one end of intermediate strut is in through the articulated setting of round pin axle lean on the right side between first rear end side support and the second rear end support, the articulated connection of one end of front end support is in the left side of the intermediate strut other end, the wheel link articulates the left side of front end support works as when intermediate strut and front end support are folding, all accomodate in between first rear end side support and the second rear end side support.
Further, the distance between the first rear end side bracket and the second rear end side bracket is larger than the sum of the thicknesses of the front end bracket, the middle bracket and the wheel connecting frame.
Further, the collateral branch frame is constituteed in the middle of the intermediate support by collateral branch frame in the middle of first centre and second, through connecting rod fixed connection between the collateral branch frame in the middle of first centre and the second, the articulated connection of the upper end of collateral branch frame in the middle of first centre and the second is in between the collateral branch frame of first rear end side and the collateral branch frame of second rear end, the articulated connection of the lower extreme of collateral branch frame in the middle of first centre and first collateral branch frame the front end support, the front end support is located between the collateral branch frame in the middle of first centre and the second, the lower extreme of front end support stretches out the intermediate support.
Further, the arc length of the front end support is less than or equal to the arc length of the middle support or the front end support is a telescopic support so that the front end support can be accommodated between the rear end support and the middle support.
The utility model has the advantages that: the utility model discloses a pair of folding bicycle, bicycle simple structure, design benefit, the frame is articulated to be constituteed by three arc support, is convenient for fold, and folding back volume is very little, has practiced thrift occupation space greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a first embodiment of a foldable bicycle of the present invention;
fig. 2 is a structural diagram of a second embodiment of the foldable bicycle of the present invention;
FIG. 3 is a structural diagram of the foldable bicycle according to the present invention in a folded state;
fig. 4 is a partial side view of a foldable bicycle according to an embodiment of the present invention;
fig. 5 is a partial schematic view of a side surface of a foldable bicycle according to an embodiment of the present invention when folded.
Wherein: 1. a rear end bracket; 2. a middle support; 3. a front end bracket; 4. a wheel connecting frame; 5. a vehicle seat; 6. a handlebar; 7. a rear wheel; 8. a front wheel; 9. pedaling; 101. a first rear end side bracket; 102. A second rear end side bracket; 201. a first medial side support; 202. a second medial side support.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows: as shown in fig. 1, 3 and 4, a foldable bicycle is characterized by comprising: frame, saddle 5, handlebar 6, pedal 9, front wheel 8, rear wheel 7, transmission, wherein, the frame is folded by rear end support 1, middle support 2 and front end support 3 and constitutes, rear end support 1, middle support 2 with front end support 3 is the arc respectively, the both ends of middle support 2 respectively with rear end support 1 and front end support 3 articulate the connection to fix through the pin, the centre of a circle of rear end support 1, middle support 2 and front end support 3 all faces rear wheel 7 one side, the top of rear end support 1 with saddle 5 articulates the connection, the lower extreme of rear end support 1 with rear wheel 7 rotates to be connected, pedal 9 is installed rear end support 1 leans on the lower position, and pass through transmission with rear wheel 7 transmission is connected, the upper end of front end support 3 with handlebar 6 articulates the connection, and fixed through the pin, the articulated wheel link that is connected with of lower extreme of front end support 3, the wheel link also becomes the arc, the other end of wheel link rotates and connects front wheel 8. Wherein, the arc length of the rear end bracket 1 is a semicircle arc length, and the arc lengths of the middle bracket 2 and the front end bracket 3 are both smaller than the rear end bracket 1.
Further, the rear end bracket 1 includes a first rear end side bracket 101 and a second rear end side bracket 102, the first rear end side bracket 101 and the second rear end side bracket 102 are respectively and symmetrically installed on both sides of the rear wheel 7, lower ends of the first rear end side bracket 101 and the second rear end side bracket 102 are rotatably connected with the rear wheel 7 through a rear axle, and a connecting rod is fixedly connected between upper ends of the first rear end side bracket 101 and the second rear end side bracket 1.
Furthermore, the pedals 9 comprise a left pedal 9 and a right pedal 9, the left pedal 9 and the right pedal 9 are connected through a connecting shaft and drive the connecting shaft to rotate, and the connecting shaft drives the rear wheel 7 to rotate through the transmission device.
Furthermore, the transmission device is chain transmission or transmission of more than two groups of bevel gears and connecting rods.
Further, the seat 5 is also formed in an arc shape, and the center of the arc is directed downward, and the seat 5 is turned backward and accommodated between the first rear bracket 101 and the second rear bracket 102.
Further, the corresponding circle radiuses of the rear end bracket 1, the front end bracket 3, the middle bracket 2 and the saddle 5 are the same.
Further, middle support 2 is single, middle support 2's one end is in through the articulated setting of round pin axle lean on the right side between first rear end side support 101 and the second rear end support 1, the articulated connection of one end of front end support 3 is in the left side of the 2 other ends of middle support, the wheel link articulates the left side of front end support works as when middle support 2 and front end support 3 are folding, all accomodate in between first rear end side support 101 and the second rear end side support 102.
Further, the distance between the first rear end side bracket and the second rear end side bracket 102 is larger than the sum of the thicknesses of the front end bracket 3, the intermediate bracket 2, and the wheel link bracket.
Further, the arc length of the front end support 3 is less than or equal to the arc length of the middle support 2 or the front end support 3 is a telescopic support so that the front end support 3 can be stored between the rear end supports 1, and because the middle support 2 and the rear end supports 1 are connected with the connecting shaft, the front end support 3 can be folded only by being less than or equal to the arc length between the middle, otherwise, the connecting shaft can block the front end support 3 and cannot be stored in the rear end support 1 in a folding mode.
Example two: as shown in fig. 2, 3 and 5, a foldable bicycle is characterized by comprising: frame, saddle 5, handlebar 6, pedal 9, front wheel 8, rear wheel 7, transmission, wherein, the frame is folded by rear end support 1, middle support 2 and front end support 3 and constitutes, rear end support 1, middle support 2 with front end support 3 is the arc respectively, the both ends of middle support 2 respectively with rear end support 1 and front end support 3 articulate the connection to fix through the pin, the centre of a circle of rear end support 1, middle support 2 and front end support 3 all faces rear wheel 7 one side, the top of rear end support 1 with saddle 5 articulates the connection, the lower extreme of rear end support 1 with rear wheel 7 rotates to be connected, pedal 9 is installed rear end support 1 leans on the lower position, and pass through transmission with rear wheel 7 transmission is connected, the upper end of front end support 3 with handlebar 6 articulates the connection, and fixed through the pin, the articulated wheel link that is connected with of lower extreme of front end support 3, the wheel link also becomes the arc, the other end of wheel link rotates and connects front wheel 8.
Further, the rear end bracket 1 includes a first rear end side bracket 101 and a second rear end side bracket 102, the first rear end side bracket 101 and the second rear end side bracket 102 are respectively and symmetrically installed on both sides of the rear wheel 7, lower ends of the first rear end side bracket 101 and the second rear end side bracket 102 are rotatably connected with the rear wheel 7 through a rear axle, and a connecting rod is fixedly connected between upper ends of the first rear end side bracket 101 and the second rear end side bracket 1.
Furthermore, the pedals 9 comprise a left pedal 9 and a right pedal 9, the left pedal 9 and the right pedal 9 are connected through a connecting shaft and drive the connecting shaft to rotate, and the connecting shaft drives the rear wheel 7 to rotate through the transmission device.
Furthermore, the transmission device is chain transmission or transmission of more than two groups of bevel gears and connecting rods.
Further, the seat 5 is also formed in an arc shape, and the center of the arc is directed downward, and the seat 5 is turned backward and accommodated between the first rear bracket 101 and the second rear bracket 102.
Further, the corresponding circle radiuses of the rear end bracket 1, the front end bracket 3, the middle bracket 2 and the saddle 5 are the same.
Further, the middle support 2 is composed of a first middle side support 201 and a second middle side support 202, the first middle side support 201 and the second middle side support 202 are fixedly connected through a connecting rod, the upper ends of the first middle side support 201 and the second middle side support 202 are hinged between the first rear end side support 101 and the second rear end side support 102, the lower ends of the first middle side support 201 and the first middle side support 201 are hinged to the front end support 3, the front end support 3 is located between the first middle side support 201 and the second middle side support 202, and the lower end of the front end support 3 extends out of the middle support 2.
Further, the arc length of the front end support 3 is less than or equal to the arc length of the middle support 2 or the front end support 3 is a telescopic support so that the front end support 3 can be accommodated between the middle supports 2. Because the connecting shaft is connected between the first middle side bracket 201 and the second middle side bracket 202, the front end bracket 3 must be smaller than or equal to the arc length between the middle parts to be folded, otherwise the connecting shaft blocks the front end bracket 3 and cannot be folded and stored in the middle bracket 2.
The working mode is as follows:
when folding, not hard up round pin axle or pin, at first accomodate middle support 2 between rear end support 1, then accomodate front end support 3 between middle support 2 or between rear end support 1 parallel with middle support 2, then to the outside handlebar 6 that rotates, overturn saddle 5 backward at last, accomodate in rear end support 1, open in proper order respectively when riding, ride passerby can be according to own height, fat thin etc. adjust rear end support 1, distance and angle between front end support 3 and the middle support 2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A folding bicycle, comprising: the bicycle comprises a frame, a saddle, handlebars, pedals, front wheels, rear wheels and a transmission device, wherein the frame is formed by folding a rear end support, an intermediate support and a front end support, the rear end support, the intermediate support and the front end support are respectively arc-shaped, two ends of the intermediate support are respectively hinged with the rear end support and the front end support and are fixed through pins, the circle centers of the rear end support, the intermediate support and the front end support face one side of the rear wheels, the top end of the rear end support is hinged with the saddle, the lower end of the rear end support is rotatably connected with the rear wheels, the pedals are arranged at the lower position of the rear end support and are in transmission connection with the rear wheels through the transmission device, the upper end of the front end support is hinged with the handlebars and is fixed through pins, the lower end of the front end support is hinged with a wheel connecting frame, the wheel connecting frame is also arc-shaped, and the other end of the wheel connecting frame is rotatably connected with the front wheel.
2. The foldable bicycle of claim 1, wherein the rear end bracket comprises a first rear end bracket and a second rear end bracket, the first rear end bracket and the second rear end bracket are symmetrically installed on two sides of the rear wheel, lower ends of the first rear end bracket and the second rear end bracket are rotatably connected with the rear wheel through a rear axle, and a connecting rod is fixedly connected between upper ends of the first rear end bracket and the second rear end bracket and an upper position of the connecting rod.
3. The foldable bicycle of claim 1, wherein the pedals comprise a left pedal and a right pedal, the left pedal and the right pedal are connected through a connecting shaft and rotate the connecting shaft, and the connecting shaft drives the rear wheel to rotate through the transmission device.
4. A foldable bicycle according to claim 3, wherein the transmission means is a chain transmission or more than two sets of bevel and connecting rods.
5. The foldable bicycle of claim 2, wherein the saddle is also curved such that its center of curvature is directed downward, and the saddle is turned backward and accommodated between the first rear bracket and the second rear bracket.
6. The foldable bicycle of claim 2, wherein the rear bracket, the front bracket, the middle bracket and the saddle have the same radius of the circle.
7. The foldable bicycle of claim 6, wherein the middle bracket is a single bracket, one end of the middle bracket is hinged to the right side between the first rear bracket and the second rear bracket through a pin, one end of the front bracket is hinged to the left side of the other end of the middle bracket, the wheel connecting frame is hinged to the left side of the front bracket, and the middle bracket and the front bracket are both accommodated between the first rear bracket and the second rear bracket when folded.
8. The folding bicycle of claim 7, wherein a distance between the first rear side bracket and the second rear side bracket is larger than a sum of thicknesses of the front side bracket, the intermediate bracket, and the wheel link bracket.
9. The foldable bicycle of claim 6, wherein the middle bracket is composed of a first middle side bracket and a second middle side bracket, the first middle side bracket and the second middle side bracket are fixedly connected through a connecting rod, the upper ends of the first middle side bracket and the second middle side bracket are hinged between the first rear end side bracket and the second rear end side bracket, the lower ends of the first middle side bracket and the first middle side bracket are hinged with the front end bracket, the front end bracket is positioned between the first middle side bracket and the second middle side bracket, and the lower end of the front end bracket extends out of the middle bracket.
10. The foldable bicycle of claim 8 or 9, wherein the arc length of the front bracket is less than or equal to the arc length of the middle bracket or the front bracket is a telescopic bracket so that the front bracket can be received between the rear bracket or the middle bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920316431.7U CN210027755U (en) | 2019-03-13 | 2019-03-13 | Folding bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920316431.7U CN210027755U (en) | 2019-03-13 | 2019-03-13 | Folding bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210027755U true CN210027755U (en) | 2020-02-07 |
Family
ID=69354878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920316431.7U Expired - Fee Related CN210027755U (en) | 2019-03-13 | 2019-03-13 | Folding bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210027755U (en) |
-
2019
- 2019-03-13 CN CN201920316431.7U patent/CN210027755U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210313 |