CN209924527U - Bicycle suspension device - Google Patents
Bicycle suspension device Download PDFInfo
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- CN209924527U CN209924527U CN201920171605.5U CN201920171605U CN209924527U CN 209924527 U CN209924527 U CN 209924527U CN 201920171605 U CN201920171605 U CN 201920171605U CN 209924527 U CN209924527 U CN 209924527U
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- rods
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- rocker mechanism
- bicycle
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- 239000000725 suspension Substances 0.000 title claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
A bicycle suspension device comprises a double-rocker mechanism and a bicycle locking mechanism arranged on a connecting rod of the double-rocker mechanism, wherein the double-rocker mechanism consists of two driving rods, two connecting rods, two driven rods, four hinged supports for fixing one ends of the driving rods and one ends of the driven rods on the ground, and four cylindrical pins for connecting the rods; the locking mechanism arranged on the connecting rod of the double-rocker mechanism consists of a parking handle device and a parking wheel device; the parking wheel device consists of a horizontal parking wheel support, a sleeve member sleeved on the wheel support and a horseshoe lock arranged on the sleeve and used for locking the wheel. The utility model provides a can save space and simple bicycle device that hangs.
Description
Technical Field
The utility model relates to a hang bicycle device.
Background
In the process of urbanization which develops at a high speed, various industries are undergoing a technical revolution. In this revolution, the main stream of development is to rationally utilize resources and advocate green environmental protection, and the green travel has been advocated in recent years because of the increasing population, the increasing economy and the increasing pollution of the amount of exhaust emissions. The continued spread of bicycles as green pollution-free vehicles and the further popularity of sharing bicycles further amplify the bicycle parking problem and make it urgent to design a parking device that can save space and is simple.
The existing device mainly comprises a parking type frame and a stereo garage, but the stereo garage is complex in flow and structure, poor in stability and easy to be affected by strong wind.
The image of cities and campuses is always influenced by the problems that bicycles occupy sidewalks randomly when parked, are stolen, fall down immediately when wind comes and the like. Under the background that the rhythm of life is increased day by day, the device capable of parking automatically and rapidly is provided, and the device has a practical prospect.
Disclosure of Invention
In order to overcome the defects of large occupied space and troublesome operation of the existing bicycle parking mode, the utility model provides a bicycle hanging device which can save space and is simple.
The utility model provides a technical scheme that its technical problem adopted is:
a bicycle suspension device comprises a double-rocker mechanism and a bicycle locking mechanism arranged on a connecting rod of the double-rocker mechanism, wherein a driving rod of the double-rocker mechanism is provided with torque by a motor, and the double-rocker mechanism consists of two driving rods, two connecting rods, two driven rods, four hinged supports for fixing one ends of the driving rods and one ends of the driven rods on the ground and four cylindrical pins for connecting the rods; the locking mechanism arranged on the connecting rod of the double-rocker mechanism consists of a parking handle device and a parking wheel device; the parking vehicle handle device consists of two horizontal parking vehicle handle brackets, two sleeve components sleeved on the vehicle handle brackets, two cylinders capable of moving relatively in the sleeves and two horseshoe locks which are arranged on the cylinders and used for locking the vehicle handle, wherein one horizontal parking vehicle handle bracket is in interference fit with the upper end of one connecting rod; the parking wheel device is composed of a horizontal parking wheel support, a sleeve component sleeved on the wheel support and a horseshoe lock which is arranged on the sleeve and used for locking the wheel, and the lower ends of the two connecting rods are in interference fit with the end part of the horizontal parking wheel support respectively.
Further, in the double-rocker mechanism, a driving rod is connected with a hinged support through a cylindrical pin, wherein the driving rod is in interference fit with the cylindrical pin, and the hinged support is in transition fit with the cylindrical pin; the connecting rod is connected with the other end of the driving rod and one end of the driven rod and is in transition fit with the cylindrical pin; the other end of the driven rod is connected with the hinge support through a cylindrical pin.
The beneficial effects of the utility model are that: 1) the whole structure is simple, the reliability is high, and the manufacturing cost is low. 2) The final state is the dead point position of the four-bar linkage, the parked vehicle can be locked more firmly, and the stability is high. 3) The double-rocker mechanism of the device is designed based on plane modeling, so that the device occupies less ground space after being parked in a parking stable range.
Drawings
FIG. 1 is a four-bar mechanism modeling diagram;
FIG. 2 is a schematic view of an embodiment of a bicycle parking process;
FIG. 3 is a perspective view of the suspended bicycle device.
FIG. 4 is a front elevational view of the suspended bicycle device.
In fig. 3 and 4, 1 is a driving rod, 2 is a connecting rod, 3 is a driven rod, 4 is a hinge bracket for fixing one ends of the driving rod and the driven rod on the ground, and the connection between 2 and 1, 3 is a member capable of forming a revolute pair, such as a cylindrical pin; 5 is a horizontal parking handlebar bracket, 6 is composed of a sleeve component sleeved on the handlebar bracket, a cylinder capable of moving relatively in the sleeve and a horseshoe lock which is arranged on the cylinder and locks the handlebar; 7 is a horizontal parking wheel bracket, 8 is a sleeve component sleeved on the wheel bracket, and 9 is a horseshoe lock which is arranged on the sleeve and locks the wheel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, a suspension bicycle device includes a double-rocker mechanism and a locking mechanism mounted on a connecting rod of the double-rocker mechanism, wherein a driving rod of the double-rocker mechanism is provided with torque by a motor, the double-rocker mechanism is composed of two driving rods 1, two connecting rods 2, two driven rods 3, four hinged brackets 4 for fixing one ends of the driving rods 1 and the driven rods 3 on the ground, and four cylindrical pins for connecting the rods; the locking mechanism arranged on the connecting rod of the double-rocker mechanism consists of a parking handle device and a parking wheel device; the parking vehicle handle device consists of two horizontal parking vehicle handle brackets 5, two sleeve members 6 sleeved on the vehicle handle brackets, two cylinders capable of moving relatively in the sleeves and two horseshoe locks arranged on the cylinders and used for locking the vehicle handle, wherein one horizontal parking vehicle handle bracket is in interference fit with the upper end of one connecting rod; the parking wheel device is composed of a horizontal parking wheel support 7, a sleeve component 8 sleeved on the wheel support and a horseshoe lock 9 arranged on the sleeve and used for locking the wheel, and the lower ends of the two connecting rods are in interference fit with the end part of the horizontal parking wheel support respectively.
Further, in the double-rocker mechanism, the driving rod is connected with the hinged support through a cylindrical pin, the driving rod is in interference fit with the cylindrical pin, and the hinged support is in transition fit with the cylindrical pin. The connecting rod is connected with the other end of the driving rod and one end of the driven rod and is in transition fit with the cylindrical pin. The other end of the driven rod is connected and matched with the hinged support through a cylindrical pin.
The connecting rod on the double-rocker mechanism is designed, so that the device can be suitable for parking bicycles of most models. The device on the connecting rod can enable a person to lock the bicycle on the ground firstly, the bicycle is enabled to move in the air along with the movement of the four-bar mechanism after being locked, and finally the four-bar mechanism stops after the angle between the active rod and the connecting rod is one hundred eighty degrees. The method comprises the following steps:
① the bicycle is parked at a designated position by locking the wheel with the horseshoe lock, the handle holder and the sleeve member can rotate relatively, and the sleeve member and the cylinder can move relatively to realize the positioning of the horseshoe lock and the grasping of the handle.
② after the bicycle is grabbed, the motor starts to rotate, the two driving rods connected with the motor start to rotate at the same angular speed, and the horizontal parking handlebar support and the sleeve member sleeved on the handlebar support passively rotate relatively and the sleeve member passively move relatively to the cylinder in the sleeve.
③ when the included angle between the active rod and the connecting rod is one hundred eighty degrees, the motor stops rotating and reaches the final state.
A method of designing a four bar linkage bicycle suspension apparatus:
(1) the length of the link is determined, which is a length determined by the parameters of most bicycle main stands, such that the length is the link length b of the double rocker mechanism.
(2) The frame length d of the double rocker mechanism is set to 1000mm based on the condition that the parking space is as small as possible.
(3) Establishing a plane coordinate system by taking the intersection point of the driven rod and the rack as the origin of the coordinate system, and taking the intersection point of the driven rod and the connecting rod as an A point (x)1，y1) The intersection point of the driving rod and the frame is a point C (x)20), the included angle between the driving rod and the frame is a point alpha, and the included angle between the driven rod and the driving rod is theta, as shown in fig. 2. The final state of bicycle parking is used as a model, the final state is that the included angle between the connecting rod and the driving rod is one hundred and eighty degrees, namely the angle alpha is equal to the angle theta. Under the above conditions, the coordinate of point B is (x)1+bcosα，y1-bsin α). Setting restriction stripAn element and an objective function.
The constraint conditions are as follows:
①, the distance h between the rear wheel of the bicycle and the ground is more than or equal to 50 mm when the double-rocker mechanism reaches the final state of parking, namely, the conditions are met:
② the angle alpha should not be too large to make the whole mechanical device unstable after parking, but not too small to make the horizontal projection of the bicycle after final parking larger0It is used to constrain the magnitude of angle α: measuring the included angle theta0Approximately 23 degrees, because the bicycle is at an angle α to the ground as a whole after parking, and because our principle is that the projected length of the bicycle on the ground is shortest, the angle θ after parking0The angle alpha is about 90 degrees as far as possible, namely after the vehicle is finally stopped, the angle alpha is less than or equal to 90 degrees to 23 degrees, namely 67 degrees. Because of the vehicle type angle theta we choose0Is relatively large, so we design the constraint:
α≤72°
③ in order to ensure good force transmission performance of the double-rocker mechanism, we have the constraint condition about the requirement of the minimum transmission angle mentioned in the mechanical principle [1 ]:
γmin≥40°。
the transmission angle of the double-rocker mechanism is set, the initial transmission angle is gammamin1(ii) a The period reaches a maximum of ninety degrees and then continues to decrease to γmin2. The constraint conditions need to be satisfied:
γmin＝min{γmin1，γmin2}≥40°
suppose gammamin2＜γmin1That is to say gammamin＝γmin2. The above assumption conditionsAnd the verification is established.
Since γ is the angle between the connecting rod and the driven rod, we can get γ 180 ° - α - β from the trigonometric geometry, thus getting the same constraint:
α+β≤140°
the objective function is:
the projection length of the bicycle in the horizontal direction is shortest when the double-rocker mechanism reaches the final parking state. Since the projection length of the bicycle in the horizontal direction is determined if the angle α is determined, and the larger the angle α is, the shorter the projection length is, the same processing can be done with the angle α by the objective function. Namely:
(4) the optimal active shaft length a and the optimal driven shaft length c which are wanted can be obtained by Lingo programming.
Claims (2)
1. A bicycle suspension device is characterized by comprising a double-rocker mechanism and a bicycle locking mechanism arranged on a connecting rod of the double-rocker mechanism, wherein a driving rod of the double-rocker mechanism is provided with torque by a motor, and the double-rocker mechanism consists of two driving rods, two connecting rods, two driven rods, four hinged supports for fixing one ends of the driving rods and one ends of the driven rods on the ground and four cylindrical pins for connecting the rods; the locking mechanism arranged on the connecting rod of the double-rocker mechanism consists of a parking handle device and a parking wheel device; the parking vehicle handle device consists of two horizontal parking vehicle handle brackets, two sleeve components sleeved on the vehicle handle brackets, two cylinders capable of moving relatively in the sleeves and two horseshoe locks which are arranged on the cylinders and used for locking the vehicle handle, wherein one horizontal parking vehicle handle bracket is in interference fit with the upper end of one connecting rod; the parking wheel device is composed of a horizontal parking wheel support, a sleeve component sleeved on the wheel support and a horseshoe lock which is arranged on the sleeve and used for locking the wheel, and the lower ends of the two connecting rods are in interference fit with the end part of the horizontal parking wheel support respectively.
2. The apparatus for suspending a bicycle according to claim 1, wherein the driving lever is connected to the hinge bracket through a cylindrical pin, wherein the driving lever is in interference fit with the cylindrical pin, the hinge bracket is in transition fit with the cylindrical pin, and the connecting rod is connected to the other end of the driving lever and one end of the driven lever, and is in transition fit with the cylindrical pin; the other end of the driven rod is connected with the hinge support through a cylindrical pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920171605.5U CN209924527U (en) | 2019-01-31 | 2019-01-31 | Bicycle suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920171605.5U CN209924527U (en) | 2019-01-31 | 2019-01-31 | Bicycle suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209924527U true CN209924527U (en) | 2020-01-10 |
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ID=69067689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920171605.5U Expired - Fee Related CN209924527U (en) | 2019-01-31 | 2019-01-31 | Bicycle suspension device |
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| Country | Link |
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| CN (1) | CN209924527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797991A (en) * | 2019-01-31 | 2019-05-24 | 浙江工业大学 | A kind of suspension bicycle device |
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2019
- 2019-01-31 CN CN201920171605.5U patent/CN209924527U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797991A (en) * | 2019-01-31 | 2019-05-24 | 浙江工业大学 | A kind of suspension bicycle device |
| CN109797991B (en) * | 2019-01-31 | 2024-05-07 | 浙江工业大学 | Suspension bicycle device |
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| GR01 | Patent grant | ||
| 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: 20200110 |