Novel electric tricycle rear suspension system

Abstract

The invention discloses a novel electric tricycle rear suspension system, and belongs to the technical field of electric tricycles, a rear suspension assembly comprises a rear axle, two groups of upper control arms, two groups of lower control arms, two groups of transverse stabilizer bars and two groups of stabilizer bar connecting rods, the two sets of the stabilizer bar connecting rods are symmetrically placed with the center line of the frame as the symmetry axis, one ends of the lower control arms are installed on the two opposite side walls of the frame through bolts, one ends of the upper control arms are installed on the two opposite side walls of the frame through bolts, and the upper ends of the stabilizer bar connecting rods are installed on the upper wall of the frame. The two ends of the transverse stabilizer bar are connected with the lower ends of the stabilizer bar connecting rods through bolts respectively. The comfort of the vehicle on a bumpy road section and the stability of sharp turning are improved, and meanwhile the problem of rollover of the vehicle is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric tricycles, and particularly relates to a rear suspension system for a new type of electric tricycle. Background Art

[0002] In existing electric tricycles and electric quadricycles, two drive wheels are rigidly suspended by a rear axle. Therefore, during the operation of the vehicle, when one wheel fluctuates due to the unevenness of the road surface, it will inevitably drive the rear axle and the other wheel to move, thereby causing the body to sway from side to side. The overall vehicle movement is single without a self-adjusting system, which is likely to cause discomfort to passengers. Moreover, during operation, if the vehicle has a large roll angle, it is also prone to roll over. Summary of the Invention

[0003] In view of the above situation, to overcome the defects of the prior art, the present invention provides a rear suspension system for a new type of electric tricycle, which at least partially solves the above technical problems.

[0004] The technical solution adopted by the present invention is as follows: A rear suspension system for a new type of electric tricycle includes a tricycle body. A frame is installed at the rear side of the tricycle body. A rear suspension assembly is installed on the frame. The rear suspension assembly includes a rear axle, upper control arms, lower control arms, a lateral stabilizer bar, and stabilizer bar connecting rods. There are two sets of stabilizer bar connecting rods, lower control arms, and upper control arms, and the two sets are symmetrically placed with respect to the center line of the frame. One end of each lower control arm is installed on opposite side walls of the frame through bolts, and one end of each upper control arm is also installed on opposite side walls of the frame through bolts. The upper ends of the stabilizer bar connecting rods are installed on the upper wall of the frame, and the two ends of the lateral stabilizer bar are respectively connected to the lower ends of the stabilizer bar connecting rods through bolts.

[0005] Wherein, the rear axle is connected to the lateral stabilizer bar through a buckle and bolts. At the same time, the other ends of the lower control arms and the other ends of the upper control arms are also connected to the rear axle through bolts.

[0006] Wherein, the rear suspension assembly includes a thrust rod. The thrust rod is arranged at the rear side of the frame, with one end connected to the frame through a bolt and the other end connected to the rear axle through a connecting rod.

[0007] Wherein, the rear suspension assembly further includes a spring. The lower end of the spring is installed on the rear axle, and the upper end of the spring is installed on the bottom wall at the upper end of the frame.

[0008] Further, the rear suspension assembly further includes a damper. The lower end of the damper is installed on the rear axle, and the upper end of the damper is installed on the bottom wall at the upper end of the frame.

[0009] Among them, a shock-absorbing foot bracket is installed at the upper end of the stabilizer rod connecting rod, and the shock-absorbing foot bracket is installed on the vehicle frame; both ends of the lateral stabilizer bar are respectively connected to the shock-absorbing foot bracket through the stabilizer rod connecting rod.

[0010] Among them, the upper control arm is arranged inside the lower control arm; the arrangement of the upper control arm and the lower control arm can ensure that the wheels always move along a predetermined trajectory, increasing the stability of the tricycle in the front-rear direction.

[0011] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0012] 1. The anti-roll bar increases the strength of the vehicle frame by restricting the left-right displacement of the overall rear axle, avoiding large swings of the vehicle body when cornering, ensuring that the rear axle does not move left and right when bearing lateral forces, thereby improving the stability of the vehicle;

[0013] 2. Both ends of the lateral stabilizer bar are respectively connected to the shock-absorbing foot bracket through the stabilizer rod connecting rod; the lateral stabilizer bar can enhance the overall rigidity of the rear suspension system, reduce the lateral deformation of the rear part of the carriage caused by centrifugal force, and reduce the roll angle of the vehicle tail during turning;

[0014] 3. The arrangement of the upper control arm and the lower control arm can ensure that the wheels always move along a predetermined trajectory, increasing the stability of the tricycle in the front-rear direction;

[0015] 4. The spring is used for vehicle load and shock absorption. At the same time, during the up and down vibration of the tricycle, the damper increases the damping force and quickly reduces vibration, which helps to stabilize the vehicle body, avoid violent vibration, thereby increasing the lateral support force of the vehicle, reducing the amplitude of up and down vibration, and thus improving the driving stability of the vehicle. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of a new type of electric tricycle rear suspension system proposed by the present invention;

[0018] Figure 2 It is a schematic diagram of a partial structure of a new type of electric tricycle rear suspension system proposed by the present invention Figure 1 ;

[0019] Figure 3 It is a schematic diagram of the bottom structure of a new type of electric tricycle rear suspension system proposed by the present invention;

[0020] Figure 4 It is a schematic diagram of a partial structure of a new type of electric tricycle rear suspension system proposed by the present invention Figure 2 .

[0021] In the accompanying drawings: 1. tricycle body, 2. frame, 3. rear axle, 4. upper control arm, 5. lower control arm, 6. anti-roll bar, 7. stabilizer link rod, 8. thrust rod, 9. spring, 10. damper, 11. shock absorber foot bracket. Specific embodiments

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0024] As Figures 1 - 4 shown, a new type of rear suspension system for an electric tricycle includes a tricycle body 1, a frame 2 is installed at the rear side of the tricycle body 1, a rear suspension assembly is installed on the frame 2, and the rear suspension assembly includes a rear axle 3, an upper control arm 4, a lower control arm 5, an anti-roll bar 6 and a stabilizer link rod 7. There are two sets of the stabilizer link rod 7, the lower control arm 5 and the upper control arm 4, and the two sets are symmetrically placed with the center line of the frame 2 as the axis of symmetry. One end of the lower control arm 5 is installed on the opposite side walls of the frame 2 through bolts, and one end of the upper control arm 4 is also installed on the opposite side walls of the frame 2 through bolts. The upper end of the stabilizer link rod 7 is installed on the upper wall of the frame 2, and both ends of the anti-roll bar 6 are connected to the lower ends of the stabilizer link rod 7 through bolts.

[0025] The rear axle 3 is connected to the anti-roll bar 6 through a buckle and bolts. At the same time, the other ends of the lower control arm 5 and the upper control arm 4 are also connected to the rear axle 3 through bolts.

[0026] The rear suspension assembly includes a thrust rod 8. The thrust rod 8 is arranged at the rear side of the vehicle frame 2, with one end bolted to the vehicle frame 2 and the other end connected to the rear axle 3 through a connecting rod. The thrust rod 8 increases the strength of the vehicle frame 2 by restricting the left - right displacement of the overall rear axle 3, avoiding large body swings when the vehicle is cornering, ensuring that the rear axle 3 does not move left and right when bearing lateral forces, and thus improving the stability of the vehicle.

[0027] The rear suspension assembly further includes a spring 9. The lower end of the spring 9 is installed on the rear axle 3, and the upper end of the spring 9 is installed on the bottom wall at the upper end of the vehicle frame 2. The spring 9 is used for vehicle load - bearing and shock absorption.

[0028] The rear suspension assembly further includes a damper 10. The lower end of the damper 10 is installed on the rear axle 3, and the upper end of the damper 10 is installed on the bottom wall at the upper end of the vehicle frame 2. During the up - and - down vibration of the tricycle, the damper 10 increases the damping force and quickly reduces vibration, helping to stabilize the vehicle body, avoiding violent vibration, thereby increasing the lateral support force of the vehicle, reducing the amplitude of up - and - down vibration, and thus improving the driving stability of the vehicle.

[0029] A shock absorber foot bracket 11 is installed at the upper end of the stabilizer link rod 7, and the shock absorber foot bracket 11 is installed on the vehicle frame 2. The two ends of the lateral stabilizer bar 6 are respectively connected to the shock absorber foot bracket 11 through the stabilizer link rod 7. The lateral stabilizer bar 6 can enhance the overall rigidity of the rear suspension system, reduce the lateral deformation of the rear part of the carriage caused by centrifugal force, and reduce the roll angle of the vehicle tail during turning.

[0030] The upper control arm 4 is arranged inside the lower control arm 5. The arrangement of the upper control arm 4 and the lower control arm 5 can ensure that the wheels always move along a predetermined trajectory, increasing the stability of the tricycle in the front - to - rear direction.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A new rear suspension system for an electric tricycle, comprising a tricycle body, wherein a frame is installed at the rear side of the tricycle body, and it is characterized in that, A rear suspension assembly is mounted on the vehicle frame. The rear suspension assembly includes a rear axle, upper control arms, lower control arms, a stabilizer bar, and stabilizer bar link rods. There are two sets of stabilizer bar link rods, lower control arms, and upper control arms, and the two sets are symmetrically placed with respect to the center line of the vehicle frame. One end of each lower control arm is mounted on opposite side walls of the vehicle frame by bolts, one end of each upper control arm is also mounted on opposite side walls of the vehicle frame by bolts, the upper ends of the stabilizer bar link rods are mounted on the upper wall of the vehicle frame, and the two ends of the stabilizer bar are respectively connected to the lower ends of the stabilizer bar link rods by bolts.

2. A novel rear suspension system for an electric tricycle according to claim 1, wherein, The rear axle is connected to the stabilizer bar by a buckle and bolts. At the same time, the other ends of the lower control arms and the other ends of the upper control arms are also connected to the rear axle by bolts.

3. A novel rear suspension system for an electric tricycle according to claim 1, characterized in that, The rear suspension assembly includes a thrust rod. The thrust rod is provided at the rear side of the vehicle frame, one end is connected to the vehicle frame by bolts, and the other end is connected to the rear axle by a connecting rod.

4. A novel rear suspension system for an electric tricycle according to claim 1, characterized in that, The rear suspension assembly further includes a spring. The lower end of the spring is mounted on the rear axle, and the upper end of the spring is mounted on the bottom wall at the upper end of the vehicle frame.

5. A novel rear suspension system for an electric tricycle according to claim 1, characterized in that, The rear suspension assembly further includes a damper. The lower end of the damper is mounted on the rear axle, and the upper end of the damper is mounted on the bottom wall at the upper end of the vehicle frame.

6. The novel rear suspension system of an electric tricycle according to claim 1, characterized in that, A shock absorber foot bracket is mounted at the upper end of the stabilizer bar link rod, and the shock absorber foot bracket is mounted on the vehicle frame.

7. A novel rear suspension system for an electric tricycle according to claim 1, characterized in that, The upper control arms are provided inside the lower control arms.

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