CN215622501U

CN215622501U - Rear wheel shock-absorbing structure and tricycle

Info

Publication number: CN215622501U
Application number: CN202122005132.1U
Authority: CN
Inventors: 臧术保
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-25
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a rear wheel damping structure and a tricycle, belonging to the technical field of tricycles, and comprising a frame and a rear support, wherein the rear wheel damping structure is characterized in that: the damping structure comprises a rear wheel, a longitudinal-swing damping spring and a transverse-swing damping spring; the rear part of the frame is symmetrically provided with two rear brackets which are hinged at the rear part of the frame through a cross shaft; the rear wheel is arranged on the rear bracket; the two longitudinal pendulum damping springs are symmetrically arranged between the rear support and the frame, two ends of the longitudinal pendulum damping springs are respectively hinged with the frame and the rear support through longitudinal hinge pins, and the two longitudinal pendulum damping springs are splayed to form a supporting structure; the two horizontal swinging damping springs are symmetrically arranged between the rear bracket and the frame, and two ends of the horizontal swinging damping springs are respectively hinged with the frame and the rear bracket through transverse pin shafts; the axis of the transverse pin shaft is parallel to the axis of the transverse shaft; the axis of the longitudinal pin shaft is vertical to the axis of the transverse shaft. This shock-absorbing structure shock attenuation is effectual, and stability is good, can improve the stability and the nature controlled of tricycle.

Description

Rear wheel shock-absorbing structure and tricycle

Technical Field

The utility model belongs to the technical field of tricycles, and particularly relates to a rear wheel damping structure and a tricycle.

Background

The tricycle may be divided into a human tricycle, an electric tricycle, a child tricycle, a battery tricycle, etc. At present, with the continuous development and maturity of battery technology, the electric tricycle is more and more favored by people due to the advantages of environmental protection, energy conservation, convenience, rapidness, strong bearing capacity and the like, and becomes a preferred transportation and transportation tool for the old to ride instead of walk and the like.

The rear wheel assembly of the electric tricycle comprises two rear wheels which are arranged in bilateral symmetry and a rear support used for mounting the rear wheels. The rear support is a rear wheel supporting structure which is rigidly connected or flexibly connected to the frame of the electric tricycle. In the prior art, a flexibly connected rear support with a shock-absorbing function comprises a rear axle, which is a transverse support rigidly connected between two rear wheels. A after-poppet for installing the rear wheel is overall construction, and the whole synchronous activity of two rear wheels in the shock attenuation process, and under one side wheel received the vibration state, the unsettled bounce of opposite side wheel, the shock attenuation effect is not good, and the nature controlled of tricycle is limited.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a rear wheel damping structure and a tricycle, which solve the problems of poor rear damping performance and poor control performance of the existing tricycle.

The utility model is realized in this way, a rear wheel shock-absorbing structure, including frame and rear support, its characteristic is: the rear wheel, the longitudinal and transverse swinging damping springs are arranged on the rear wheel; the rear part of the frame is symmetrically provided with two rear brackets which are hinged on the rear part of the frame through a cross shaft; the rear wheel is arranged on the rear bracket; the two longitudinal pendulum damping springs are symmetrically arranged between the rear support and the frame, two ends of each longitudinal pendulum damping spring are respectively hinged with the frame and the rear support through longitudinal hinge pins, and the two longitudinal pendulum damping springs are splayed to form a supporting structure; the two transverse swinging damping springs are symmetrically arranged between the rear bracket and the frame, and two ends of the transverse swinging damping springs are respectively hinged with the frame and the rear bracket through transverse pin shafts; the axis of the longitudinal pin shaft is perpendicular to the axis of the transverse shaft, and the axis of the transverse pin shaft is perpendicular to the axis of the longitudinal pin shaft.

Preferably, the rear support includes a front section frame and a rear section frame, the rear section frame extends from the rear end of the front section frame to the rear outer side, the rear section frame is of a splayed expansion structure, and the rear wheel is mounted at the tail of the rear section frame.

Preferably, the lower end of the pitch damping spring is hinged with the front section frame through the longitudinal pin shaft; and the lower end of the yaw damping spring is hinged with the rear section frame through the transverse pin shaft.

Another object of the present invention is to provide a tricycle equipped with any of the rear shock absorbing structures described above.

The utility model has the advantages and effects that:

1. compared with the rear shock absorption structure of the traditional tricycle, the shock absorption structure of the utility model has the advantages that the two rear wheels adopt independent suspensions and are respectively arranged on the two relatively independent rear brackets, and the two rear wheels independently absorb shock, so that the shock absorption effect of the shock absorption structure is greatly improved compared with the integral shock absorption structure.

2. Because of the fact that two rear wheels are installed on independent suspensions, the two rear wheels can still be stably supported on the ground in the state that the center of gravity of the frame is inclined in the turning process of the tricycle, the controllability of the tricycle is greatly improved, the turning radius of the tricycle can be reduced, and the control flexibility of the tricycle is improved.

3. This technical scheme shock-absorbing structure is compacter, supports stably, and the pendulum damping spring is except providing reliable shock attenuation support, and the support structure of its splayed can resist the torsion of rear wheel bearing power to the rear bracket to reduce the torsion that cross axle and spring hinged end received by a wide margin, part long service life.

Drawings

FIG. 1 is a side view of the shock-absorbing structure of the present invention;

FIG. 2 is a rear view of the shock absorbing structure of the present invention;

fig. 3 is a schematic structural view of the rear bracket of the present invention.

In the figure, 1, a frame; 2. a rear bracket; 2-1, front section frame; 2-2, a rear section frame; 3. a horizontal axis; 4. a rear wheel; 5. a pitch damping spring; 6. a yaw damping spring; 7. a longitudinal pin shaft; 8. and a transverse pin shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In order to solve the problems of poor rear damping performance and poor control performance of the existing tricycle, the utility model particularly provides a rear wheel damping structure and a tricycle. To further illustrate the structure of the present invention, the following detailed description is made with reference to the accompanying drawings:

example one

Referring to fig. 1 to 3, a rear wheel shock absorbing structure includes a frame 1 and a rear bracket 2. The frame 1 is a metal tube welded frame structure, a rear support bracket body extending backwards is arranged above the rear part of the frame 1, and a space for mounting a rear wheel and a rear bracket 2 is arranged below the rear support bracket body.

The rear part of the frame 1 is provided with two rear brackets 2 in bilateral symmetry, and the rear brackets 2 are hinged at the rear part of the frame 1 through a cross shaft 3. In this embodiment, the rear frame 2 includes a front frame 2-1 and a rear frame 2-2, the rear frame 2-2 extends from the rear end of the front frame 2-1 to the rear outer side, and the two rear frames 2-2 are in a splayed expansion structure. The rear bracket 2 is made by bending a metal pipe, and the front end of the front section bracket 2-1 is hinged with the frame 1 through a cross shaft 3. The horizontal shaft 3 is a pin shaft parallel to the axis of the wheel of the tricycle. The rear bracket 2 uses the transverse shaft 3 as a shaft to realize the swing and the movement of the tail part in the up-and-down direction. The hinge structure of the cross shaft 3 is well known to those skilled in the art, and two ear plates with shaft holes are welded on the rear part of the frame 1 to form a shaft seat, the cross shaft 3 is installed on the shaft seat, a shaft sleeve matched with the cross shaft 3 is welded on the front end of the front section frame 2-1 of the rear bracket 2, and the shaft sleeve is sleeved on the cross shaft.

The rear wheel 4 is arranged at the tail part of the rear section frame 2-2 of the rear bracket 2, specifically, a shaft seat is welded at the tail part of the rear section frame 2-2, the shaft seat is provided with a shaft hole with the axis parallel to the axis of the rear wheel 4, the shaft hole is provided with a wheel shaft of the rear wheel 4 through a bearing, and the rear wheel 4 is positioned at the outer side of the rear part of the rear section frame 2-2.

Including a pitch damper spring 5 and a yaw damper spring 6. A pitch damping spring 5 and a yaw damping spring 6 are installed between each rear support 2 and the frame 1, the two pitch damping springs 5 are symmetrically arranged between the rear support 2 and the frame 1, and the two yaw damping springs 6 are symmetrically arranged between the rear support 2 and the frame 1.

Two ends of the longitudinal pendulum damping spring 5 are respectively hinged with the frame 1 and the rear support 2 through a longitudinal pin 7, and the two longitudinal pendulum damping springs 5 are splayed to form a supporting structure. Specifically, the upper end of the pitch damper spring 5 is hinged with the rear bearing bracket body of the frame 1 through a longitudinal pin 7, and the lower end of the pitch damper spring 5 is hinged with the front section frame 2-1 of the rear bracket 2 through a longitudinal pin 7. The axis of the longitudinal pin 7 is vertical to the axis of the rear wheel 4 and is horizontally arranged. The pendulum damping spring 5 plays a role of damping the rear bracket, and simultaneously, the formed splayed supporting structure and the hinge structure by the longitudinal pin 7 can offset the torsion borne by the rear bracket 2.

The two ends of the horizontal swing damping spring 6 are respectively hinged with the frame 1 and the rear support 2 through a transverse pin shaft 8. Specifically, the upper end of the yaw damping spring 6 is hinged with the rear bearing bracket body of the frame 1 through a transverse pin shaft 8, and the lower end of the yaw damping spring 6 is hinged with the rear section frame 2-2 of the rear bracket 2 through the transverse pin shaft 8. The axis of the transverse pin 8 is vertical to the axis of the longitudinal pin 7. In the embodiment, the included angle between the axis of the yaw damping bomb 6 and the rear section frame 2-2 is 60 degrees. The pin-hinged structure of the longitudinal pins 7 and the transverse pins 8 is well known to those skilled in the mechanical art.

According to the scheme, the rear wheel installed on the independent suspension is guaranteed to be made of multi-directional shock absorption through the shock absorption structure with the double shock absorption springs on the two sides, the shock absorption effect is excellent, and the stability is high.

Example two

In the embodiment, the tricycle is an electric tricycle provided with a storage battery and a matched control system, and the tricycle is assembled with any one of the rear shock absorption structures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a rear wheel shock-absorbing structure, includes frame (1) and after-poppet (2), its characterized in that: comprises rear wheels (4), a longitudinal-swing damping spring (5) and a transverse-swing damping spring (6);

the rear part of the frame (1) is symmetrically provided with two rear brackets (2), and the rear brackets (2) are hinged to the rear part of the frame (1) through a cross shaft (3); the rear wheel (4) is arranged on the rear bracket (2); the two longitudinal pendulum damping springs (5) are symmetrically arranged between the rear support (2) and the frame (1), two ends of each longitudinal pendulum damping spring (5) are respectively hinged with the frame (1) and the rear support (2) through a longitudinal pin shaft (7), and the two longitudinal pendulum damping springs (5) are splayed to form a supporting structure; the two yaw damping springs (6) are symmetrically arranged between the rear support (2) and the frame (1), and two ends of the yaw damping springs (6) are respectively hinged with the frame (1) and the rear support (2) through transverse pin shafts (8); the axis of the longitudinal pin shaft (7) is vertical to the axis of the transverse shaft (3); the axis of the transverse pin shaft (8) is vertical to the axis of the longitudinal pin shaft (7).

2. The rear wheel suspension structure according to claim 1, wherein: the rear support (2) comprises a front section frame (2-1) and a rear section frame (2-2), the rear section frame (2-2) extends towards the rear outer side from the rear end of the front section frame (2-1), the two rear section frames (2-2) are of splayed expansion structures, and rear wheels (4) are mounted at the tail of the rear section frame (2-2).

3. The rear wheel suspension structure according to claim 2, wherein: the lower end of the longitudinal pendulum damping spring (5) is hinged with the front section frame (2-1) through the longitudinal pin shaft (7); the lower end of the yaw damping spring (6) is hinged with the rear section frame (2-2) through the transverse pin shaft (8).

4. A tricycle, its characterized in that: the tricycle assembly is fitted with a rear wheel suspension according to any of claims 1 to 3.