CN112874684A

CN112874684A - Damper and scooter suitable for scooter

Info

Publication number: CN112874684A
Application number: CN202110314731.3A
Authority: CN
Inventors: 刘光锐; 娄永信
Original assignee: Ningbo Shengheng Industrial Design Co ltd
Current assignee: Ningbo Shengheng Industrial Design Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-06-01

Abstract

The invention discloses a shock-absorbing mechanism suitable for a scooter and the scooter, the shock-absorbing mechanism comprises a connecting part and wheels, two sides of the wheels are provided with rocker parts, the connecting part is arranged at the front end or the rear end of a pedal part, the connecting part is provided with a first shaft contact point and a second shaft contact point, the first shaft contact point is close to the wheels, the second shaft contact point is far away from the wheels, the front end of the rocker part is connected with a rotating shaft of the wheels, the middle part of the rocker part is connected with the connecting part through the first shaft contact point, the rear end of the rocker part is connected with a transmission assembly, the transmission assembly comprises a first transmission piece and a second transmission piece which are in shaft connection, the lower end of the first transmission piece is connected with the rear end of the rocker part, the upper end of the first transmission piece is connected with the front end of the second transmission piece, the middle part of the second transmission piece is connected with the connecting part through the second shaft, the damping mechanism has the advantage of providing a damping mechanism with a brand new structure.

Description

Damper and scooter suitable for scooter

Technical Field

The invention relates to the field of scooters, in particular to a damping mechanism suitable for a scooter and the scooter.

Background

With the continuous improvement of the living standard of people, the scooter gradually enters thousands of households. Scooters typically include a footrest, wheels, and a control faucet. The wheels are arranged below the pedal part, the control faucet is arranged above the pedal part, and the control faucet comprises a steering rod arranged below. In order to reduce the vibration of the scooter, a damping mechanism is required to be arranged between the pedal part and the wheel, the traditional damping mechanism comprises a rocker arm which is connected between the pedal part and the wheel in a shaft mode, a connecting part which extends upwards is arranged on the pedal part, and a spring damper is arranged between the upper end of the connecting part and the rocker arm. In the driving process, the wheels are stressed to generate upward displacement to drive the rocker arms to move upwards, so that the spring shock absorbers deform to play a shock absorption role.

The invention provides a novel damping mechanism suitable for a scooter.

Disclosure of Invention

The invention aims to solve the technical problem of providing a novel damping mechanism suitable for a scooter and the scooter, wherein the wheel is subjected to the same force, and the force required to be provided by a spring damper is relatively small, so that the available spring damper type range is far larger than that of the traditional structure.

The invention solves the technical problem by adopting the technical scheme that the shock absorption mechanism is suitable for a scooter and is characterized by comprising a connecting part and a wheel, wherein rocking arm parts are arranged on two sides of the wheel, the connecting part is used for being arranged at the front end or the rear end of a pedal part, a first axial joint and a second axial joint are arranged on the connecting part, the first axial joint is close to the wheel, the second axial joint is far away from the wheel, the front end of the rocking arm part is connected with a rotating shaft of the wheel, the middle part of the rocking arm part is connected with the connecting part through the first axial joint, the rear end of the rocking arm part is connected with a transmission assembly, the transmission assembly comprises a first transmission part and a second transmission part which are in axial connection, the lower end of the first transmission part is connected with the rear end of the rocking arm part, the upper end of the first transmission part is connected with the front end of the second transmission part, the middle part of the second, the front end of the spring damper is connected with the connecting part.

The further preferable scheme of the invention is as follows: the connecting portion be two, transmission assembly sets up in the middle of two connecting portions, connecting portion set up between two rocking arm portions, be provided with the fixed plate between two connecting portions, the fixed plate is used for being fixed in pedal portion two connecting portions.

The further preferable scheme of the invention is as follows: the first pivot point is provided with a first cross rod which penetrates through the connecting part, and two ends of the first cross rod are in shaft connection with the rocker arm parts at two sides.

The further preferable scheme of the invention is as follows: the rear end of the swing arm part is connected with the first transmission part through the second cross rod, and the lower end of the connecting part is provided with a concave cavity for the second cross rod to move up and down.

The further preferable scheme of the invention is as follows: the first transmission piece is a linear type which is vertically arranged, the second transmission piece is a V type with an included angle of 40-170 degrees, the second transmission piece is composed of two transmission rods, and the two transmission rods are connected to two sides of the first transmission piece.

The further preferable scheme of the invention is as follows: and a third cross rod is arranged on the second shaft contact point, and the third cross rod penetrates through the middle part of the second transmission part to be connected with the connecting piece.

The further preferable scheme of the invention is as follows: the front end of the spring shock absorber and the connecting part connecting point are located above the first axial connecting point, the front side of the connecting part is recessed inwards, and the front end of the spring shock absorber and the first axial connecting point are respectively located at the upper end and the lower end of the recess.

The further preferable scheme of the invention is as follows: the spring shock absorber inclines upwards from the rear end to the front end.

The further preferable scheme of the invention is as follows: the rear ends of the two transmission rods are provided with a fourth cross rod, the spring shock absorbers are connected with the second transmission part through the fourth cross rod at the rear ends, and the spring shock absorbers are connected with the connecting parts through the fifth cross rod at the front ends.

A scooter comprises a pedal part, wheels, a control faucet and any one of the shock absorption mechanisms suitable for the scooter.

The invention forms a brand new damping mechanism by combining the connecting part, the rocker part, the transmission assembly, the spring damper and the wheel. The wheel is collided with and is shifted up, the rocking arm portion uses first axle connection point to make the rear end of rocking arm portion move down as the center, first transmission piece moves down and promotes the front end of second rotation piece and move down, the second rotates the piece and uses the second axle connection point to rotate as the center, the rear end of second rotation piece moves, the rear end extrusion spring shock absorber of second rotation piece, the other end of spring shock absorber keeps unchangeable because of connecting portion, so press the spring shock absorber to receive the extrusion and shorten, play absorbing effect.

Drawings

FIG. 1 is a perspective view of a damper mechanism according to the present invention;

FIG. 2 is an explosion head of the damping mechanism of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a first schematic view of a damping mechanism according to the present invention;

FIG. 5 is a first schematic view of a conventional damping mechanism;

FIG. 6 is a perspective view of the scooter;

FIG. 7 is a second schematic view of the damping mechanism of the present invention;

FIG. 8 is a second schematic view of a conventional damping mechanism;

FIG. 9 is a force analysis diagram of the damper mechanism of the present invention;

fig. 10 is a force analysis diagram of the conventional damper mechanism.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-6, a shock absorbing mechanism suitable for a scooter comprises a connecting portion 1 and a wheel 2, wherein two sides of the wheel 2 are provided with a rocker portion 3, the connecting portion 1 is used for being arranged at the front end or the rear end of a pedal portion 4, the connecting portion 1 is fixed, the connecting portion 1 is provided with a first axial contact 5 and a second axial contact 6, and the first axial contact 5 and the second axial contact 6 have respective structures to realize an axial connection effect. The first pivot point 5 is close to wheel 2, and second pivot point 6 keeps away from wheel 2, and the pivot 7 of wheel 2 is connected to the front end of rocking arm portion 3, and the middle part of rocking arm portion 3 links to each other with connecting portion 1 through first pivot point 5, and the transmission assembly is connected to the rear end of rocking arm portion 3. The upward or downward movement of the wheel 2 causes the downward or upward movement of the rear end of the swing arm portion 3. The transmission assembly comprises a first transmission piece 8 and a second transmission piece 9 which are connected with each other through a shaft, the lower end of the first transmission piece 8 is connected with the rear end of the rocker arm part 3, and the upper end of the first transmission piece 8 is connected with the front end of the second transmission piece 9. The upper end and the lower end of the first transmission member 8 move in the same direction, that is, the front end and the rear end both move up or down simultaneously. The middle part of second driving medium 9 links to each other with connecting portion 1 through second axle contact 6, and the rear end of pressure spring damper 10 is connected to the rear end of second driving medium 9, and the front end of spring damper 10 links to each other with connecting portion 1, and shifting up or moving down of the front end of second driving medium 9 drives the reverse motion of second driving medium 9 rear end, and the removal of second driving medium 9 rear end extrudes spring damper 10. The wheel 2 is collided with and is moved up, the rocker arm portion 3 uses the first pivot point 5 as the center to make the rear end of the rocker arm portion 3 move down, the first transmission piece 8 moves down and pushes the front end of the second rotation piece 9 to move down, the second rotation piece 9 rotates by using the second pivot point 6 as the center, the rear end of the second rotation piece 9 moves, the rear end of the second rotation piece 9 extrudes the spring damper 10, the other end of the spring damper 0 keeps unchanged because of being connected with the connecting portion 1, so the spring damper 10 is extruded and shortened, and the damping effect is achieved.

Meanwhile, compared with the prior art, the wheels of the two wheels are subjected to the same force, and the force transmitted to the spring shock absorber by the invention is smaller than the force transmitted to the spring shock absorber by the prior art, and the following is a specific embodiment. Referring to fig. 7, in the damping mechanism of the present invention, a is a distance from the axle center of the wheel to the first pivot point 5, b is a distance from the first pivot point 5 to the lower end of the first transmission member 8, c is a distance from the lower end to the upper end of the first transmission member 8, d is a distance from the upper end of the first transmission member 8 to the second pivot point 6, e is a distance from the second pivot point 6 to the rear end of the first transmission member 9, and an included angle between the first transmission member 8 and the second transmission member 9 is 135 degrees. Fig. 8 shows a conventional damper mechanism. a is the distance from the axle center of the wheel to the axle joint point is 210mm, and b is the distance from the lower end of the spring damper to the axle joint point is 60 mm. The basic data can be obtained through 3 groups of experimental data:

as shown in the above table, the spring damper needs to provide a smaller force value when the wheel is subjected to the same force than the conventional structure of the damper. As shown in fig. 9, the force system analysis of the present invention is:

and F, wheel: the force to which the wheel is subjected during shock absorption;

x1: a moment arm relative to the first axial contact when the wheel is stressed;

f2: the force applied to the lower end of the first transmission piece;

x2: the force arm from the lower end of the first transmission piece to the first axial joint;

the moment balance equation of the rocker arm force system is as follows: f wheel X1 ═ F2X 2;

f, bomb: the force to which the spring damper is subjected;

x3: a moment arm of the spring damper relative to the second axis contact;

f2 force applied to the front end of the second transmission piece;

x4 moment arm from the front end of the second transmission piece to the second shaft contact point;

the force system moment balance equation of the spring shock absorber is as follows: f bomb X3 ═ F2X 4;

to sum up:

solving the equation yields: x1 is evident from the figure>X2、X3>X4；

Therefore, the invention comprises the following steps: f wheel

As shown in fig. 10, the force system analysis of the conventional structure is:

f wheel, the force that the wheel receives when absorbing shock;

x1: the force arm of the wheel relative to the rotating point of the rocker arm when the wheel is stressed;

f, bomb: the force to which the spring damper is subjected;

x2: the force arm of the spring shock absorber relative to the rotating point of the rocker arm;

the force system moment balance equation of the spring shock absorber is as follows: f wheel X1 ═ F bullet X2

To sum up:

it is evident from the figure that X2< X1, X1/X2>1

Therefore: f bullet > F wheel

Comparing the two force systems leads to the conclusion that the spring damper of the multi-link force system of the present invention needs to provide a force value that is less than the force value of the wheel feedback. The spring damper of the conventional structure needs to provide a force value greater than the wheel feedback force value. In the practical application process, the traditional structure needs to select a spring with a larger force value, and the maximum force value of the spring can reach 2500-3000 pounds, so that the range of the spring selected by the traditional structure is narrower. The spring force required by the invention is smaller than the feedback force value of the wheel, so the range of the available spring types of the invention is far larger than that of the traditional structure. Meanwhile, the invention benefits from the large range selectivity of the spring force value, the adjustable range of the damping soft and hard comfort is enlarged, and more riding comfort choices can be provided for different users.

Connecting portion 1 is two, and connecting portion 1 generally is the board type, and transmission assembly sets up in the middle of two connecting portion 1, and connecting portion 1 sets up between two rocking arm portions 3, and two rocking arm portions 3 have great space to hold transmission assembly and connecting portion 1 in the wheel 2 outside generally, are provided with fixed plate 11 between two connecting portion 1, and fixed plate 11 is used for being fixed in pedal portion 4 two connecting portion 1, can play good fixed effect. The first pivot point 5 is provided with a first cross bar 12 penetrating through the connecting part 1, and two ends of the first cross bar 12 are in shaft connection with the rocker arm parts 3 at two sides, so that the rocker arm parts 3 are in shaft connection with the connecting part 1 on the first pivot point 5. The rear end of the swing arm 3 is connected with the first transmission piece 8 through a second cross bar 20, and the lower end of the connecting part 1 is provided with a concave cavity 13 for the second cross bar 20 to move up and down. The first transmission member 8 can move up and down in the cavity 13 after the force of the vibration is transmitted. The first transmission piece 8 is a straight line type which is vertically arranged, the second transmission piece 9 is a V type which has an included angle of 40-170 degrees, the second transmission piece 9 is composed of two transmission rods 14, the two transmission rods 14 are connected to two sides of the first transmission piece 8, and the middle part is provided with a rotating shaft to realize shaft connection. The force of the vibrations is transmitted first to the first transmission member 8 and then to the second transmission member 9. And a third cross bar 15 is arranged on the second shaft connecting point 6, and the third cross bar 15 passes through the middle part of the second transmission piece 9 and is connected with the connecting piece 1. The middle of the second transmission part 9 is journaled at the second axial contact 6 and the connecting part 1. The front end of the spring damper 10 and the connection point of the connecting portion 1 are located above the first pivot point 6, the front side of the connecting portion 1 is recessed 16 inward, and the front end of the spring damper 10 and the first pivot point 5 are located at the upper end and the lower end of the recess 16, respectively. The position design can not influence the normal use of the pedal part 4, and the spring damper 10 can play a due damping effect. The spring damper 10 is inclined upward from the rear end to the front end. The spring damper 10 is required to have a tilting amplitude in accordance with the position and size of the wheel. A fourth cross rod 17 is arranged between the rear ends of the two transmission rods 14, the spring shock absorbers 10 are connected with the second transmission piece 9 through the fourth cross rod 17 from the rear ends, and the spring shock absorbers 10 are connected with the connecting parts 1 through fifth cross rods 18 from the front ends.

A scooter comprises a pedal part 4, a control tap 19 and any one of the shock absorption mechanisms suitable for the scooter. The invention provides a novel damping mechanism which can be used for a scooter. Meanwhile, the structure of the invention can improve the unit size of the wheel, so that the change range of the spring shock absorber 11 is larger, the selection range of the elastic coefficient of the spring is larger, and the spring with smaller hardness can be selected to improve the comfort level.

The present invention provides a shock absorbing mechanism for a scooter and a scooter, and the shock absorbing mechanism and the scooter provided by the present invention are described in detail, and the principle and the implementation manner of the present invention are explained by using specific examples, and the description of the above embodiments is only used to help understanding the present invention and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a damper suitable for scooter, its characterized in that includes connecting portion and wheel, the wheel both sides are provided with the rocker portion, connecting portion are used for setting up front end or the rear end in pedal portion, be provided with primary shaft contact and secondary shaft contact on the connecting portion, primary shaft contact is close to the wheel, the wheel is kept away from to the secondary shaft contact, the pivot of wheel is connected to the front end of rocker portion, the middle part of rocker portion links to each other through primary shaft contact and connecting portion, the transmission assembly is connected to the rear end of rocker portion, the transmission assembly includes first driving medium and the second driving medium of looks hub connection, the lower extreme of first driving medium and the rear end of rocker portion link to each other, the upper end of first driving medium and the front end of second driving medium link to each other, the middle part of second driving medium links to each other through secondary shaft contact and connecting portion, the rear end of pressure spring damper is connected to the rear end of second driving.

2. The vibration absorbing mechanism for a scooter according to claim 1, wherein the connecting portion is two, the transmission assembly is disposed between the two connecting portions, the connecting portion is disposed between the two swing arms, and a fixing plate is disposed between the two connecting portions for fixing the two connecting portions to the pedal portion.

3. The shock absorbing mechanism for the scooter of claim 1, wherein the first pivot point is provided with a first cross bar passing through the connecting portion, and two ends of the first cross bar are pivotally connected to the rocker portions at two sides.

4. The vibration absorbing mechanism for a scooter according to claim 1 wherein the rear end of the swing arm is connected to the first transmission member through a second cross bar, and the lower end of the connecting portion is provided with a cavity for the second cross bar to move up and down.

5. The absorbing mechanism as claimed in claim 1, wherein the first transmission member is a straight line vertically disposed, the second transmission member is a V-shaped member with an included angle of 40-170 degrees, and the second transmission member comprises two transmission rods connected to two sides of the first transmission member.

6. The shock absorbing mechanism for the scooter of claim 1, wherein a third cross bar is disposed at the second shaft connecting point, and the third cross bar passes through a middle portion of the second transmission member and is connected to the connecting member.

7. The suspension mechanism of claim 1, wherein the spring damper has a front end and a connecting point located above the first pivot point, the front side of the connecting portion is recessed inward, and the front end and the first pivot point of the spring damper are located at the upper end and the lower end of the recess, respectively.

8. A shock absorbing mechanism for a scooter according to claim 1 wherein said spring damper is inclined upwardly from a rear end to a front end.

9. The vibration absorbing mechanism for the scooter of claim 5 wherein a fourth cross bar is disposed between the rear ends of the two driving rods, the spring damper is connected to the second driving member through the fourth cross bar at the rear end, and the spring damper is connected to the connecting portion through a fifth cross bar at the front end.

10. A scooter comprising a footrest and a control tap, characterized in that a shock absorbing mechanism according to any of claims 1-9 is provided for the scooter.