CN214451607U

CN214451607U - Rear wheel damping mechanism of electric scooter

Info

Publication number: CN214451607U
Application number: CN202120597126.7U
Authority: CN
Inventors: 金正锦
Original assignee: Nujin Weihai Electric Vehicle Co ltd
Current assignee: Nujin Weihai Electric Vehicle Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-10-22
Anticipated expiration: 2031-03-24

Abstract

The utility model provides an electric scooter rear wheel damper, including footboard and two wheel linking arms, the one end of two wheel linking arms links to each other with the tip of rear wheel axletree, and the one end that the rear wheel was kept away from to two wheel linking arms is passed through the articulated shaft and is articulated in the both sides of footboard rear end, is equipped with the bumper shock absorber between footboard and two wheel linking arms, be equipped with the surge tank on the footboard, the bumper shock absorber includes shock absorber post, overlaps the spring outside the shock absorber post and the connecting axle of connecting two wheel linking arms, and the one end of shock absorber post is located the surge tank, and the other end of shock absorber post runs through the surge tank and articulates with the connecting axle, and the one end of spring links to each other with the surge tank tip in the surge tank, and the other end of spring offsets with the inner wall of surge tank. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the rear wheel adopts a bumper shock absorber, can effectively reduce the bumper shock absorber and to electric scooter's volume increase, places the surge tank in the spring of bumper shock absorber in, dustproof, waterproof life who improves the bumper shock absorber.

Description

Rear wheel damping mechanism of electric scooter

Technical Field

The utility model relates to an electric scooter equipment technical field, specific is an electric scooter front wheel damper of torsional spring formula.

Background

The electric scooter is a new traffic tool based on a pedal scooter and provided with an electric power suite, and is popular with people due to the characteristics of small volume, portability, easy operation and the like. Electric scooter generally includes the footboard, and the rear end of footboard passes through the back fork and links to each other with the wheel, and the front end of footboard rotates with the pole setting subassembly and links to each other, and the upper end of pole setting subassembly links to each other with the handlebar, and the lower extreme of pole setting subassembly passes through the front fork and links to each other with the front wheel. The electric power kit of the electric scooter usually includes a battery and a hub motor located in a battery compartment on a pedal, and the rotation speed of the hub motor is controlled by a controller on a handlebar to obtain different driving speeds.

In order to ensure the stability of the electric scooter during running and reduce jolt, a damping mechanism is usually arranged at a front fork and a rear fork, the damping mechanism commonly used by the electric scooter is a spring type damper, the damper is arranged at the fork of a wheel vehicle, and two forks at two sides of a wheel are respectively provided with a damper to achieve stress balance during damping. In addition, electric scooter's small is its main characteristic who is different from other electric vehicle, and conventional bumper shock absorber volume is great, and electric scooter's bumper shock absorber is for practicing thrift the size, except reducing bumper shock absorber self size, still can retrench the bumper shock absorber structure, and consequently, the damping spring of the bumper shock absorber of the majority can directly expose, does not do parcel processing such as dustproof, waterproof to the life of bumper shock absorber has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric scooter's rear wheel damper, the rear wheel only uses a bumper shock absorber, and the spring seal of bumper shock absorber is in the footboard, and the effectual damper that has reduced has improved the life of bumper shock absorber to the increase of electric scooter volume.

The technical scheme of the utility model is that:

the utility model provides an electric scooter rear wheel damper, includes footboard and two wheel linking arms, and the one end of two wheel linking arms links to each other with the tip of rear wheel axletree, and the one end that the rear wheel was kept away from to two wheel linking arms is passed through the articulated shaft and is articulated in the both sides of footboard rear end, is equipped with the bumper shock absorber between footboard and two wheel linking arms, be equipped with the surge tank on the footboard, the bumper shock absorber includes shock absorber post, cover spring outside the shock absorber post and the connecting axle of connecting two wheel linking arms, and the one end of shock absorber post is located the surge tank, and the other end of shock absorber post runs through the surge tank and articulates with the connecting axle, and the one end of spring links to each other with the shock absorber post tip in the surge tank, and the other end of spring offsets with the inner wall of surge tank.

Specifically, the middle part of the rear end of the pedal extends backwards to form a hinged part, the hinged part and the main body of the pedal form a convex structure, the hinged shaft penetrates through two sides of the hinged part, the distance between the side surface of the hinged part and the side wall of the pedal main body is matched with the width of a wheel connecting arm, the rear end surfaces of the pedals on two sides of the hinged part are rear end surface inclined surfaces forming an included angle of 50-85 degrees with the upper surface of the pedal, and the wheel connecting arm is provided with a wheel connecting arm inclined surface matched with the rear end surface inclined surfaces of the pedals.

The end part of the damping column, which is positioned in the damping cabin, is provided with an adjusting nut, the end part of the damping column is in threaded connection with the adjusting nut, and the spring is abutted against the adjusting nut.

Specifically, the connecting surface between the lower part of the hinged part and the lower part of the damping cabin is arc-shaped, and reinforcing ribs are arranged on the connecting surface.

The shock absorption column penetrates through the shock absorption cabin through a shock absorption column hole in the lower portion of the shock absorption cabin, the included angle between the axis of the shock absorption column hole and the upper surface of the pedal is 5-40 degrees, and specifically, the axis of the shock absorption column hole is perpendicular to the inclined plane of the rear end face of the pedal.

The shock-absorbing column hole is a stepped hole at the lower surface of the pedal, the stepped hole comprises a narrow-diameter section and a wide-diameter section, the narrow-diameter section is matched with the shock-absorbing column, and a sealing ring is arranged at the wide-diameter section.

A limiting sleeve is sleeved outside the damping column in the damping cabin and arranged between the spring and the damping column, and one end of the limiting sleeve is abutted to the inner wall of the damping cabin.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the rear wheel adopts the shock absorber, the shock absorber is arranged in the pedal and below the pedal, the volume increase of the shock absorber to the electric scooter can be effectively reduced, the spring of the shock absorber is arranged in the damping cabin, and the shock absorber is dustproof and waterproof and the service life of the shock absorber is prolonged.

Drawings

FIG. 1 is a schematic view of the structure principle of the present invention

FIG. 2 is a schematic view of the front view angle of the pedal

FIG. 3 is a schematic top view of the pedal

FIG. 4 is a cross-sectional view taken at A-A in FIG. 3

FIG. 5 is a detail view at A in FIG. 4

In the figure:

1. pedal 2, wheel connecting arm 3, articulated shaft

11. Damper 12, hinge 13, and pedal upper surface

14. Rear end face inclined plane 15, reinforcing rib 41 and shock absorption column

42. Spring 43, connecting shaft 44 and adjusting nut

45. Sealing ring 46, limiting sleeve 111 and damping column hole

Detailed Description

As shown in fig. 1-5, the utility model discloses:

a rear wheel damping mechanism of an electric scooter comprises a pedal 1 and two wheel connecting arms 2, wherein one ends of the two wheel connecting arms 2 are connected with the end parts of a rear wheel axle, the rear wheel axle penetrates through a rear wheel, the wheel connecting arms 2 of the two wheel connecting arms 2 are respectively connected with the two end parts of a wheel axle at the two sides of the rear wheel, one ends of the two wheel connecting arms 2 far away from the rear wheel are hinged at the two sides of the rear end of the pedal 1 through a hinged shaft 3, a damper is arranged between the pedal 1 and the two wheel connecting arms 2, the shock absorption cabin 11 is arranged on the pedal, the shock absorber comprises a shock absorption column 41, a spring 42 sleeved outside the shock absorption column 41 and a connecting shaft 43 connected with two wheel connecting arms, one end of the shock absorption column 41 is located in the shock absorption cabin 11, the other end of the shock absorption column 41 penetrates through the shock absorption cabin 11 and is hinged to the connecting shaft 43, one end of the spring 42 is connected with the end portion of the shock absorption column 41 in the shock absorption cabin 11, and the other end of the spring 42 is abutted to the inner wall of the shock absorption cabin 11.

When the electric scooter runs into jolt, the pedal 1 moves downwards relative to the rear wheel, the connecting shaft 43 for connecting the two wheel connecting arms 2 rotates around the hinged shaft 3, the connecting shaft 43 moves backwards, the shock absorption column 41 is pulled, and the shock absorption column 41 is located on the end portion compression spring 42 in the shock absorption cabin 11, so that the shock absorption effect is achieved.

The utility model discloses a connecting axle 43 is fixed with two wheel linking arms 2, and connecting axle 43 further links to each other with shock-absorbing column 41, can realize the synchronous shock attenuation in rear wheel both sides with a bumper shock absorber, and is rational in infrastructure, and the atress is balanced during the shock attenuation, and the bumper shock absorber is located the footboard and the below of footboard, has reduced the volume of bumper shock absorber to electric scooter and has taken. The main body of the shock absorber, especially the spring 42 is located in the damping cabin 11 on the pedal, the upper part of the damping cabin 11 is opened and is provided with a cabin cover, and after the cabin cover is covered, the main body of the shock absorber is in a sealing state, so that the dustproof and waterproof effect can be effectively achieved, the aging of the shock absorber is reduced, and the service life of the shock absorber is prolonged.

Specifically, the middle part of the rear end of the pedal 1 extends backwards to form a hinge part 12, the hinge part 12 and the main body of the pedal form a convex structure, the hinge shaft 3 penetrates through two sides of the hinge part 12, the distance between the side surface of the hinge part 12 and the side wall of the pedal main body is matched with the width of the wheel connecting arm 2, the rear end surfaces of the pedals on two sides of the hinge part are rear end surface inclined surfaces 14 forming an included angle of 50-85 degrees with the upper surfaces 13 of the pedals, and the wheel connecting arm 2 is provided with a wheel connecting arm inclined surface matched with the rear end surface inclined surfaces 14 of the pedals. When bumping, the connecting shaft 43 rotates around the hinge shaft 3, and the hinge point of the shock absorbing column 41 and the connecting shaft 43 has a certain displacement in the vertical direction, so that the shock absorbing column hole 111 of the shock absorbing bulkhead, through which the shock absorbing column passes, needs a certain clearance with the shock absorbing column 41 to allow the axis of the shock absorbing column 41 to deviate. The rear end face of the pedal is set to be an inclined plane, so that the offset of the axis of the shock absorbing column 41 can be reduced under the condition that the shock absorbing column 41 is stretched out of the shock absorbing cabin 11 by the same length, and further, the gap between the shock absorbing column hole 111 and the shock absorbing column 41 is reduced, so that the stability of the shock absorbing mechanism is improved.

The end part of the shock absorption column 41, which is positioned in the shock absorption cabin 11, is provided with an adjusting nut 44, the end part of the shock absorption column 41 is in threaded connection with the adjusting nut 44, and the spring 42 abuts against the adjusting nut 44.

The adjustment nut 44 allows the degree of compression of the spring 42 to be adjusted for reasonable shock absorption.

Specifically, the connecting surface between the lower part of the hinge part 12 and the lower part of the damper compartment 11 is arc-shaped, and a reinforcing rib 15 is arranged at the connecting surface.

The shock absorption column 41 penetrates through the shock absorption cabin 11 through a shock absorption column hole 111 at the lower part of the shock absorption cabin 11, the included angle between the axis of the shock absorption column hole 111 and the upper surface 13 of the pedal is 5-40 degrees, and specifically, the axis of the shock absorption column hole 111 is perpendicular to the inclined plane 14 of the rear end face of the pedal.

Shock attenuation post hole 111 is the shoulder hole in the lower surface department of footboard 1, the shoulder hole includes narrow diameter section and wide footpath section, narrow diameter section department cooperatees with shock attenuation post 41, wide diameter section department is equipped with sealing washer 45. The sealing ring 45 further improves the sealing performance of the damper 11, and prevents dust or water from entering the damper 11 through the damper post hole 111.

A limiting sleeve 46 is sleeved outside the damping column 41 in the damping cabin 11, the limiting sleeve 46 is arranged between the spring 42 and the damping column 41, and one end of the limiting sleeve 46 is abutted to the inner wall of the damping cabin 11. The stop collar 46 limits the amount of compression of the spring 42 and prevents the spring 42 from being over compressed and causing spring fatigue.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides an electric scooter rear wheel damper, includes footboard and two wheel linking arms, and the one end of two wheel linking arms links to each other with the tip of rear wheel axletree, and the one end that the rear wheel was kept away from to two wheel linking arms is passed through the articulated shaft and is articulated in the both sides of footboard rear end, is equipped with the bumper shock absorber, its characterized in that between footboard and two wheel linking arms: be equipped with the surge tank on the footboard, the bumper shock absorber includes shock absorber post, cover spring outside the shock absorber post and the connecting axle of connecting two wheel linking arms, and the one end of shock absorber post is located the surge tank, and the other end of shock absorber post runs through the surge tank and is articulated with the connecting axle, and the one end of spring links to each other with the shock absorber post tip in the surge tank, and the other end of spring offsets with the inner wall of surge tank.

2. The electric scooter rear wheel damper according to claim 1, wherein: the middle part of the rear end of the pedal extends backwards to form a hinge part, the hinge shaft penetrates through two sides of the hinge part, and an included angle of 50-85 degrees is formed between the rear end surfaces of the pedals at two sides of the hinge part and the upper surface of the pedal.

3. The electric scooter rear wheel damper according to claim 1, wherein: the end part of the damping column, which is positioned in the damping cabin, is provided with an adjusting nut, the end part of the damping column is in threaded connection with the adjusting nut, and the spring is abutted against the adjusting nut.

4. The electric scooter rear wheel damping mechanism of claim 2, wherein: the connecting surface between the lower part of the hinged part and the lower part of the damping cabin is arc-shaped, and reinforcing ribs are arranged at the connecting surface.

5. The electric scooter rear wheel damper according to claim 1, wherein: the shock absorption column penetrates through the shock absorption cabin through a shock absorption column hole at the lower part of the shock absorption cabin, and the included angle between the axis of the shock absorption column hole and the upper surface of the pedal is 5-40 degrees.

6. The electric scooter rear wheel damping mechanism of claim 5, wherein: the shock-absorbing column hole is a stepped hole at the lower surface of the pedal, the stepped hole comprises a narrow-diameter section and a wide-diameter section, the narrow-diameter section is matched with the shock-absorbing column, and a sealing ring is arranged at the wide-diameter section.

7. The electric scooter rear wheel damper according to claim 1, wherein: a limiting sleeve is sleeved outside the damping column in the damping cabin and arranged between the spring and the damping column, and one end of the limiting sleeve is abutted to the inner wall of the damping cabin.