CN204567921U - A kind of folding bicycle frame - Google Patents
A kind of folding bicycle frame Download PDFInfo
- Publication number
- CN204567921U CN204567921U CN201520207618.5U CN201520207618U CN204567921U CN 204567921 U CN204567921 U CN 204567921U CN 201520207618 U CN201520207618 U CN 201520207618U CN 204567921 U CN204567921 U CN 204567921U
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- CN
- China
- Prior art keywords
- main body
- middle main
- saddle pipe
- lower link
- connecting rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Motorcycle And Bicycle Frame (AREA)
Abstract
The utility model discloses a kind of folding bicycle frame, comprise front vehicle frame, middle main body and Rear frame, front vehicle frame is connected by the front end of upper and lower connecting rod with middle main body, Rear frame is hinged on the rear end of middle main body, in the pilot hole of middle main body, slidably saddle pipe is installed, described saddle pipe is slidably arranged with steady ring.This carriage operator is convenient and swift, dependable performance.
Description
Technical field
The utility model relates to cycle frame, is specially a kind of Foldable bicycle vehicle frame.
Background technology
Folding Bicycle is subject to the welcome of consumers in general with the feature that it is convenient to carry, deposit.Cycle frame disclosed in patent CN202703802, can realize the folding of vehicle frame, reduces car body and takes up room.But the structure of this kind of folding stand is more complicated, complex operation.And when folded state, the position of forward and backward vehicle frame is not effectively locked, and both easily launch voluntarily.
Summary of the invention
The purpose of this utility model is to provide a kind of folding bicycle frame, convenient to operation, dependable performance.
Folding bicycle frame described in the utility model, comprise front vehicle frame, middle main body and Rear frame, described front vehicle frame is connected with the front end of lower link with middle main body by the upper connecting rod paralleled, described Rear frame is hinged on the rear end of middle main body, in the pilot hole of described middle main body, slidably saddle pipe is installed, described saddle pipe is provided with locking component, when vehicle frame is in deployed condition, by the axial motion of described locking component restriction saddle pipe relative to middle main body pilot hole, described saddle pipe is slidably arranged with steady ring, this steady ring is arranged in the top of main body pilot hole, when vehicle frame is in deployed condition, described steady ring can be pressed on middle main body pilot hole top by locking component, this steady ring to be pressed in after lower link on extension and Rear frame forward extension downwards simultaneously, to limit lower link and Rear frame is inwardly rotated, when vehicle frame is in folded state, the both sides, front and back of described steady ring prop up extension and Rear frame forward extension after lower link respectively, to limit lower link and Rear frame is outwards rotated, the extension part that to be lower link extend back relative to the hinge-point of itself and middle main body after wherein said lower link, the described Rear frame forward extension part that to be Rear frame extend forward relative to the hinge-point of itself and middle main body.
Preferably, described locking component comprises latch and is located at locating part at the bottom of the pipe bottom saddle pipe, described latch upper end is rotating to be arranged in saddle pipe inner chamber, pull back spring is provided with between saddle pipe inwall and latch, described latch rotates under the effect of pull back spring, its lower end is stretched out from the notch on saddle pipe surface, when vehicle frame is in deployed condition, locating part at the bottom of pipe is upwards conflicted with middle main body, and described in stretch out saddle pipe notch lock piece be pressed on downwards abut against middle main body pilot hole top steady ring on, thus limit the axial motion of described saddle pipe relative to middle main body.
Preferably, on described, be provided with connecting rod locating part between connecting rod and lower link, during to limit deployed condition, the relative position between upper and lower connecting rod.
Preferably, described connecting rod locating part is be located at the limiting stopper on connecting rod and lower link respectively, and when described upper and lower connecting rod outwards turns to deployed condition, the limiting stopper on upper connecting rod and lower link is inconsistent, continues outside rotation trend to limit upper and lower connecting rod.
Preferably, coaxially at the hinge-point place of described middle main body and Rear frame crank and chain-wheel is provided with.
Preferably, be fitted with the seat pipe of sitting cushion at described saddle pipe top, the top of described seat pipe bends backward.
Preferably, locating part at the bottom of described pipe is a plastic cement door being fixed on saddle pipe bottom.
Preferably, described middle main body is also provided with lift-pull handle.
Preferably, in described middle main body, be provided with a guide cylinder, the centre hole of this guide cylinder forms described pilot hole.
Folding stand tool described in the utility model has the following advantages:
1, the expansion of vehicle frame and folding operation simple, light and handy, quick.
2, vehicle frame firmly can keep folded state, meets the folding rear requirement continuing to carry out.
3, in the ride after vehicle frame launches, front/rear frame is effectively fixed, and can not produce and rock, eliminate potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of this vehicle frame when being in deployed condition;
Fig. 2 is the structural representation of this vehicle frame when being in folded state;
Fig. 3 is the middle main body of described vehicle frame and the annexation schematic diagram of upper and lower connecting rod and Rear frame.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and following examples, only for explaining the utility model, do not form the restriction to the utility model protection domain.
Folding electric bicycle vehicle frame as shown in Figure 1, Figure 2, Figure 3 shows, comprises front vehicle frame 1, middle main body 7 and Rear frame 17.Described front vehicle frame 1 is provided with front-wheel 2 and handlebar 3, Rear frame 17 is provided with trailing wheel 21, battery 19 and electric machine controller 20.
Described front vehicle frame 1 is connected with the front end of middle main body 7 is rotating by the upper connecting rod 4 that parallels and lower link 5, and described Rear frame 17 is hinged on the rear end of middle main body.
Described middle main body 7 is provided with lift-pull handle 8, is provided with a guide cylinder 23 in described middle main body, the centre hole of this guide cylinder forms pilot hole.Described saddle pipe 9 slidably plug-in mounting carries in described pilot hole, is fitted with the seat pipe 14 of sitting cushion 15 at described saddle pipe 9 top.
Described saddle pipe is provided with locking component, this locking component is latch 11 and is located at bottom saddle pipe at the bottom of pipe locating part 12, in the present embodiment, locating part 12 at the bottom of pipe is a plastic cement door being fixed on saddle pipe bottom, and the plastic cement door of plastic cement material can play the effect of damping.The upper end of described latch 11 is rotating to be arranged in saddle pipe inner chamber, is provided with pull back spring 13 between saddle pipe inwall and latch.
Described saddle pipe 9 is slidably arranged with steady ring 10, and this steady ring 10 is arranged in the top of main body pilot hole.When vehicle frame is in deployed condition, locating part 12 at the bottom of pipe is upwards conflicted with middle main body, and described in stretch out saddle pipe notch lock piece 11 be pressed on downwards abut against middle main body guide cylinder top steady ring 10 on, thus limit the axial motion of described saddle pipe 9 relative to middle main body 7.This steady ring 10 to be pressed in after lower link on extension 16 and Rear frame forward extension 18 downwards simultaneously, to limit lower link 5 and Rear frame 17 is inwardly rotated.When vehicle frame is in folded state, the both sides, front and back of described steady ring 10 prop up extension 16 and Rear frame forward extension 18 after lower link respectively, to limit lower link 5 and Rear frame 17 is outwards rotated.Extension 16 part that to be lower link extend back relative to the hinge-point of itself and middle main body 7 after wherein said lower link, described Rear frame forward extension 18 is the part that the hinge-point of Rear frame 17 relative itself and middle main body 7 extends forward.
On described connecting rod 4 and lower link 5 relative inner face on be respectively arranged with limiting stopper 6, when described upper and lower connecting rod outwards turns to deployed condition, the relative inner face of the limiting stopper 6 on upper connecting rod 4 and lower link 5 is inconsistent, continues outside rotation trend to limit upper and lower connecting rod.
In the cycle frame disclosed in existing patent CN202703802, its crank and chain-wheel is arranged on middle body front end, when vehicle frame folding, the distance between crank and chain-wheel and trailing wheel axis can change, and therefore it arranges an intermediate chain wheel to ensure chain tightens in middle body rear.And in the utility model, hinge-point 22 place that what crank and chain-wheel (not shown in FIG.) was coaxial be arranged on middle main body and Rear frame.No matter which kind of state vehicle frame is in, and the distance between crank and chain-wheel with trailing wheel axis is consistent, and do not need to arrange intermediate chain wheel, structure is simple.Because crank and chain-wheel is rearmounted, for ensureing to ride traveling comfort, the position of driver also should corresponding after move, therefore the top of described seat pipe 14 bends backward, moves after making the position of seat cushion 15.
Below the use principle of above-mentioned vehicle frame is introduced:
When needing the vehicle frame folding of deployed condition to get up, pinning the lock piece 11 on saddle pipe, overcoming the application force of pull back spring 13, make latch 11 take in saddle inner chamber, thus release is to downward the compressing of steady ring 10, is pulled upwardly by steady ring 10.Meanwhile, draw the lift-pull handle 8 in middle main body with handing up, under the vehicle body Gravitative Loads of front and back, upper and lower connecting rod and the relative interior rotation of Rear frame, front and rear wheel inwardly closes up.When after folding putting in place, steady ring 10 is displaced downwardly to after lower link between extension 16 and Rear frame forward extension 18, saddle pipe 9 along in main body pilot hole move downward, to reduce bench height, thus complete the folding operation (see Fig. 2) of vehicle frame.Now, the both sides, front and back of steady ring 10 prop up extension 16 and Rear frame forward extension 18 after lower link respectively, lock lower link 5 and Rear frame 17, make both can not relative outer rotation, prevent vehicle frame from launching.Visible, this vehicle frame effectively can keep folded state, thus the bicycle under meeting folded state is carried out, convenient carrying.
When needing the vehicle frame of folded state to launch, steady ring 10 upwards being lifted, discharging the locking to lower link 5 and Rear frame 17.Upper and lower connecting rod and Rear frame just can outwards be rotated, and when front and back wheel is deployed into, the limiting stopper 6 now gone up on connecting rod and lower link is inconsistent.Steady ring 10 on saddle pipe to be pressed in after lower link on extension 16 and Rear frame forward extension 18 downwards, saddle pipe 9 is pulled upwardly, just expose above steady ring to the notch on saddle pipe, lock piece 11 just ejects under the effect of pull back spring 13, be pressed on steady ring 10, and now the plastic cement door at saddle pipe top and middle bottom part body are conflicted, thus restriction saddle pipe relatively in the moving axially of main body, just complete expansion operation (see Fig. 1) of vehicle frame.Under the effect of steady ring, lower link 5 and Rear frame 17 can keep stable deployed condition, there will not be the situation of rocking, ensure that riding safety.
Claims (9)
1. a folding bicycle frame, comprise front vehicle frame (1), middle main body (7) and Rear frame (17), described front vehicle frame is connected with the front end of middle main body with lower link (5) by the upper connecting rod (4) paralleled, described Rear frame is hinged on the rear end of middle main body, in the pilot hole of described middle main body, saddle pipe (9) is slidably installed
It is characterized in that: on described saddle pipe, be provided with locking component, when vehicle frame is in deployed condition, by the axial motion of described locking component restriction saddle pipe relative to middle main body pilot hole,
Described saddle pipe is slidably arranged with steady ring (10), this steady ring is arranged in the top of main body pilot hole, when vehicle frame is in deployed condition, described steady ring can be pressed on middle main body pilot hole top by locking component, this steady ring (10) to be pressed in after lower link on extension (16) and Rear frame forward extension (18) downwards simultaneously, to limit lower link and Rear frame is inwardly rotated, when vehicle frame is in folded state, the both sides, front and back of described steady ring prop up extension and Rear frame forward extension after lower link respectively, to limit lower link and Rear frame is outwards rotated, the extension part that to be lower link extend back relative to the hinge-point of itself and middle main body after wherein said lower link, the described Rear frame forward extension part that to be Rear frame extend forward relative to the hinge-point of itself and middle main body.
2. folding bicycle frame according to claim 1, it is characterized in that: described locking component comprises latch (11) and is located at locating part (12) at the bottom of the pipe bottom saddle pipe, described latch upper end is rotating to be arranged in saddle pipe inner chamber, pull back spring (13) is provided with between saddle pipe inwall and latch, described latch rotates under the effect of pull back spring, its lower end is stretched out from the notch on saddle pipe surface
When vehicle frame is in deployed condition, locating part at the bottom of pipe (12) is upwards conflicted with middle main body, and described in stretch out saddle pipe notch lock piece (11) be pressed on downwards abut against middle main body pilot hole top steady ring on, thus limit the axial motion of described saddle pipe relative to middle main body.
3. folding bicycle frame according to claim 1 and 2, is characterized in that: on described, be provided with connecting rod locating part between connecting rod (4) and lower link (5), during to limit deployed condition, and the relative position between upper and lower connecting rod.
4. folding bicycle frame according to claim 3, it is characterized in that: described connecting rod locating part is be located at the limiting stopper (6) on connecting rod (4) and lower link (5) respectively, when described upper and lower connecting rod outwards turns to deployed condition, limiting stopper on upper connecting rod and lower link is inconsistent, continues outside rotation trend to limit upper and lower connecting rod.
5. folding bicycle frame according to claim 3, is characterized in that: coaxially at the hinge-point place of described middle main body and Rear frame be provided with crank and chain-wheel.
6. folding bicycle frame according to claim 5, is characterized in that: the seat pipe (14) being fitted with sitting cushion at described saddle pipe top, the top of described seat pipe bends backward.
7. folding bicycle frame according to claim 2, is characterized in that: locating part at the bottom of described pipe is a plastic cement door being fixed on saddle pipe bottom.
8. folding bicycle frame according to claim 3, is characterized in that: in described middle main body, be also provided with lift-pull handle (8).
9. folding bicycle frame according to claim 1, is characterized in that: in described middle main body, be provided with a guide cylinder (23), and the centre hole of this guide cylinder forms described pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207618.5U CN204567921U (en) | 2015-04-09 | 2015-04-09 | A kind of folding bicycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207618.5U CN204567921U (en) | 2015-04-09 | 2015-04-09 | A kind of folding bicycle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204567921U true CN204567921U (en) | 2015-08-19 |
Family
ID=53860596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520207618.5U Withdrawn - After Issue CN204567921U (en) | 2015-04-09 | 2015-04-09 | A kind of folding bicycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204567921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709418A (en) * | 2015-04-09 | 2015-06-17 | 重庆长丰新能源技术有限公司 | Folding bicycle frame |
-
2015
- 2015-04-09 CN CN201520207618.5U patent/CN204567921U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709418A (en) * | 2015-04-09 | 2015-06-17 | 重庆长丰新能源技术有限公司 | Folding bicycle frame |
| CN104709418B (en) * | 2015-04-09 | 2017-06-20 | 重庆长丰新能源技术有限公司 | A kind of folding bicycle frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150819 Effective date of abandoning: 20170620 |