CN210063237U

CN210063237U - High-speed reverse tricycle

Info

Publication number: CN210063237U
Application number: CN201920355872.8U
Authority: CN
Inventors: 陈洪亮; 李官德
Original assignee: Zhejiang Funny Ha Polytron Technologies Inc
Current assignee: Zhejiang Funny Ha Polytron Technologies Inc
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-02-14
Anticipated expiration: 2029-03-20
Also published as: DE202019107142U1

Abstract

The utility model provides a high-speed reverse tricycle, which comprises a deflection and steering mechanism, a rear frame, a driving wheel and two front wheels, wherein the deflection and steering mechanism comprises a main frame, a left front arm component and a right front arm component which are symmetrically arranged on two sides of the main frame; left side forearm subassembly includes upper left rocking arm, left lower rocking arm and left knuckle structure, right side forearm subassembly includes upper right rocking arm, right lower rocking arm and right knuckle structure, left side knuckle structure and right knuckle structure are the symmetric design, including the knuckle body, the knuckle body is including straight section and bent section, has formed the link respectively in the outer end of straight section, the outer end of bent section, the straight section is in the inner space that the rim of front wheel formed, and the rim that the front wheel was avoided to the bent section makes the outer end of bent section be in the top of front wheel, and the shaft of front wheel is fixed on the straight section. After the technical scheme is adopted, the rocker arm of the deflection and steering mechanism has long force arm and large bearing capacity, and the stability of the whole vehicle in high-speed running is better.

Description

High-speed reverse tricycle

Technical Field

The utility model relates to a reverse tricycle of high speed.

Background

The reverse tricycle has the advantages that the front steering wheel train comprises a special product with two wheels, one more wheel is in contact with the ground relative to the tricycle, the stability advantage is very unique on a wet and slippery road surface which is easy to sideslip, the possibility that a rider sideslips and falls down is greatly reduced, and the driving safety is greatly improved compared with the two-wheel tricycle under the environment of the complex terrain and the ground surface.

The applicant previously filed patent invention of a reverse tricycle with patent number 201510774236.5, and obtained by combining the specification and the drawings of the specification, a left front arm assembly and a right front arm assembly in a yaw and steering mechanism are both positioned in a space between two front wheels, and according to the regulations, the wheel distance between the two front wheels is a certain value, so that the layout and the movement space of a left upper rocker arm, a left lower rocker arm, a right upper rocker arm and a right lower rocker arm are limited, and the reverse tricycle is only suitable for running at a lower speed due to the fact that the distance between the upper rocker arm and the lower rocker arm is short, impact resistance and integral bearing capacity are limited, and is poor in stability when running at a high speed.

Disclosure of Invention

Therefore, the main objective of the present invention is to solve the above problems and to provide a high-speed reverse tricycle structure.

In order to achieve the above object, the utility model discloses the technical scheme who adopts provides a reverse tricycle of high speed, include: the front-end steering device comprises a deflection and steering mechanism, a rear-section frame, a driving wheel and two front wheels, wherein the deflection and steering mechanism is arranged at the front end of the rear-section frame;

the deflection and steering mechanism of the high-speed reverse tricycle comprises a main frame, a left front arm assembly and a right front arm assembly which are symmetrically arranged at the two sides of the main frame,

the left front arm assembly comprises an upper left rocker arm, a lower left rocker arm and a left steering knuckle structure, the first end of the upper left rocker arm is hinged with the main frame through a first pivoting mechanism, the first end of the lower left rocker arm is hinged with the main frame through a second pivoting mechanism, and the second ends of the upper left rocker arm and the lower left rocker arm are hinged with the upper end and the lower end of the left steering knuckle structure through a third pivoting mechanism and a fourth pivoting mechanism respectively;

the right front arm assembly comprises a right upper rocker arm, a right lower rocker arm and a right steering knuckle structure, the first end of the right upper rocker arm is hinged with the main frame through a fifth pivoting mechanism, the first end of the right lower rocker arm is hinged with the main frame through a sixth pivoting mechanism, and the second ends of the right upper rocker arm and the right lower rocker arm are hinged with the upper end and the lower end of the right steering knuckle structure through a seventh pivoting mechanism and an eighth pivoting mechanism respectively;

the first pivoting mechanism and the fifth pivoting mechanism are coaxial, the second pivoting mechanism and the sixth pivoting mechanism are coaxial,

the left steering knuckle structure and the right steering knuckle structure are symmetrically designed and comprise steering knuckle bodies, each steering knuckle body comprises a straight section and a curved section, connecting ends are formed at the outer end of the straight section and the outer end of the curved section respectively, the straight sections are located in an inner space formed by a rim of a front wheel, the curved sections avoid the rim and a tire of the front wheel to enable the outer ends of the curved sections to be located above the front wheel, and a wheel shaft of the front wheel is fixed on the straight sections;

the high-speed reverse tricycle further comprises a steering structure, the steering structure comprises a steering upright post and a universal steering mechanism, the steering upright post is arranged on the main frame in a penetrating mode, an axle seat is arranged at the lower end of the steering upright post, the middle of the universal steering mechanism is arranged on the axle seat through an eleventh pivoting mechanism, and the left end and the right end of the universal steering mechanism are respectively connected with a ninth pivoting mechanism arranged at the front end of a steering knuckle body of the left steering knuckle structure and a tenth pivoting mechanism arranged at the front end of a right steering knuckle body of the right steering knuckle structure; a handlebar is arranged at the upper end of the steering column;

and a damping device is arranged between the upper left rocker arm and the upper right rocker arm or between the lower left rocker arm and the lower right rocker arm.

Preferably, the universal steering mechanism comprises a left pull rod, a right pull rod and an eleventh pivoting mechanism, the eleventh pivoting mechanism is arranged between the left pull rod and the right pull rod, the eleventh pivoting mechanism comprises a hinge shaft, the lower end of the hinge shaft is arranged in a shaft seat through a twelfth pivoting mechanism, the left pull rod is connected with the ninth pivoting mechanism and the eleventh pivoting mechanism, and the right pull rod is connected with the tenth pivoting mechanism and the eleventh pivoting mechanism.

Preferably, the left pull rod and the right pull rod are arranged on the same plane.

Preferably, the eleventh pivoting mechanism comprises a left hinge joint arranged at the inner end of the left pull rod, a right hinge joint arranged at the inner end of the right pull rod and a hinge shaft, the left hinge joint and the right hinge joint are of a fork-shaped structure, a hinge sleeve is arranged at the upper end of the hinge shaft, the left hinge joint is positioned in the right hinge joint, the hinge sleeve is positioned in the left hinge joint, the eleventh pivoting mechanism is symmetrically designed by taking the hinge sleeve as a center, a first hinge hole is formed in the left hinge joint, a second hinge hole is formed in the right hinge joint, and the first hinge hole, the second hinge hole and the hinge sleeve are coaxially arranged; the flange bearings are arranged in the second hinge holes and the hinge sleeves respectively, each flange bearing comprises an inner ring, an outer ring and a steel ball, a flange is formed at one end of the outer ring, an extending end is arranged at one end, matched with the flange of the outer ring, of the inner ring in an axially outward mode, the flange bearing in the second hinge hole of the right hinge joint and the extending end of the flange bearing in the hinge sleeve respectively abut against the inner end face and the outer end face of the left hinge joint, the flange of the flange bearing in the second hinge hole of the right hinge joint abuts against the end face, adjacent to the left hinge joint, of the right hinge joint, the flange of the flange bearing in the hinge sleeve abuts against the outer end face of the hinge sleeve, and therefore when the left hinge joint, the hinge sleeve and the right hinge joint are hinged and rotated mutually, the left hinge joint is not in contact with the outer ring of the flange bearing, and the friction force between every two hinge joints and the right hinge joint is reduced, the abrasion is reduced; and a bolt penetrates through an inner hole of the flange bearing on one side of the right hinged joint, the first hinged hole of the left hinged joint and an inner hole of the flange bearing in the hinged sleeve, a nut is screwed at the outer end of the bolt, and the nut abuts against an inner ring of the flange bearing on the other side of the right hinged joint.

Preferably, waterproof rings are arranged in a gap between the left hinged head and the right hinged head and a gap between the left hinged head and the hinged sleeve.

The shaft seat comprises a connecting piece, a stand column sleeve arranged at one end of the connecting piece and a shaft sleeve arranged at the other end of the connecting piece, the steering stand column is matched and fixed with the stand column sleeve, the eleventh pivoting mechanism is arranged in the shaft sleeve, a left limiting block and a right limiting block are arranged on the periphery of the stand column sleeve, and the left limiting block and the right limiting block are respectively correspondingly matched with a left stop block and a right stop block on the main frame. And limiting lugs are respectively arranged on the main frame below the upper left rocker arm and the upper right rocker arm.

Preferably, the twelfth pivoting mechanism comprises an upper mounting groove, a lower mounting groove and a spacer sleeve hole for connecting the upper mounting groove and the lower mounting groove on the shaft seat, the upper mounting groove, the lower mounting groove and the spacer sleeve hole are coaxially arranged, the upper mounting groove and the lower mounting groove are vertically symmetrically arranged by taking the spacer sleeve hole as a center, the inner diameter of the spacer sleeve hole is smaller than the inner diameters of the upper mounting groove and the lower mounting groove, compensation blocks are respectively arranged in the upper mounting groove and the lower mounting groove, the compensation blocks are made of elastic materials, a bearing hole is arranged at the center of each compensation block, the inner diameter of each bearing hole is consistent with the inner diameter of the spacer sleeve hole, a flange bearing is embedded in each bearing hole and comprises an inner ring, an outer ring and steel balls, a flange is formed at one end of the outer ring, an extending end is arranged at one end, matched with the flange of the outer ring, of the inner ring, the flange abuts against the gasket; an inner spacer sleeve and an outer spacer sleeve are arranged in the spacer sleeve hole, the upper end and the lower end of the inner spacer sleeve respectively abut against the inner end faces of the inner rings of the two flange bearings, and the upper end and the lower end of the outer spacer sleeve respectively abut against the inner end faces of the outer rings of the two flange bearings; the articulated shaft from top to bottom passes the hole of the flange bearing in the last mounting groove in proper order, the hole of interior spacer and the hole of the flange bearing in the mounting groove down, the upper end of articulated shaft is equipped with the step ring, and the step ring supports and serves at the extension of the flange bearing in last mounting groove, the lower extreme of articulated shaft has the screw thread, and the nut passes through the screw thread to be fixed with the articulated shaft spiro union, and the nut supports and serves at the extension of the flange bearing in the mounting groove down.

And limiting lugs are respectively arranged on the main frame below the upper left rocker arm and the upper right rocker arm.

Preferably, the third pivoting mechanism, the fourth pivoting mechanism, the seventh pivoting mechanism and the eighth pivoting mechanism have the same structure, and each of the third pivoting mechanism, the fourth pivoting mechanism, the seventh pivoting mechanism and the eighth pivoting mechanism comprises a rotating sleeve, a first shaft and a second shaft, a bearing is arranged in the rotating sleeve, the first shaft penetrates through the rotating sleeve and the bearing to enable the rotating sleeve to be hinged to the connecting end, hinged parts of a pitch fork type are arranged at the second ends of the upper left rocker arm, the lower left rocker arm, the upper right rocker arm and the lower right rocker arm, the hinged parts are hinged to the rotating sleeve through the second shaft and the third shaft, bearings are respectively sleeved on the second shaft and the third shaft, and; the second shaft and the third shaft are arranged coaxially.

Preferably, the ninth pivoting mechanism and the tenth pivoting mechanism are consistent in structure and respectively comprise a first rotating arm connected with the steering knuckle body through a bearing and a second rotating arm connected with the outer end of the first rotating arm through a bearing, and the second rotating arm is fixedly connected with the left pull rod or the right pull rod.

Preferably, the main frame comprises a main beam A, the main beam A comprises a beam main body A, the lower end of the beam main body A is provided with two lower mounting grooves A for accommodating the second ends of the left lower rocker arm and the right lower rocker arm, and the upper end of the beam main body A is provided with an upper mounting groove A and a mounting end A for accommodating the second ends of the left upper rocker arm and the right upper rocker arm; an opening is formed in the front end of the middle of the beam main body A, an extension beam is arranged at the front end of the opening, and an accommodating groove is formed between the extension beam and the opening; and a support beam A connected with a rear-section frame is arranged at the rear end of the beam main body A.

Damping device includes left damper assembly, right damper assembly and support piece, left side damper assembly, right damper assembly's lower extreme articulates respectively at left lower rocking arm or upper left rocking arm, lower right rocking arm or upper right rocking arm through the bearing, and the upper end articulates respectively at support piece's both ends through the bearing, support piece's centre is articulated in the holding tank through support piece beat bearing.

The main frame comprises a main beam B, the main beam B comprises a beam main body B, the lower end of the beam main body B is provided with two lower mounting grooves B for accommodating the second end of the left lower rocker arm and the second end of the right lower rocker arm, the upper end of the beam main body B is provided with an upper mounting groove B and a mounting end B for accommodating the second end of the left upper rocker arm and the second end of the right upper rocker arm, and the lower mounting groove B at the front side of the lower end of the beam main body B is formed by supports which are fixed at the front end of the beam main body B and are arranged at intervals with the front end of the lower part of the beam main body B; the rear end of the beam main body B is provided with a supporting beam B connected with a rear-section frame; and the beam main body B is provided with a through hole.

The damping device comprises two supporting pieces, two ends of a damping component are respectively hinged to the two supporting seats, and the damping component penetrates through the through hole; the two supporting seats are respectively fixed on the left lower rocker arm or the left upper rocker arm, the right lower rocker arm or the right upper rocker arm.

The axle shaft of the front wheel is inserted into the axle hole of the steering knuckle body, the axle hole is an open hole, and the axle hole is tightly held by the axle shaft and the first shaft of the fourth pivoting mechanism or the eighth pivoting mechanism at the lower end of the steering knuckle body through screws.

The main frame is provided with a stand column sleeve, the steering stand column penetrates through the stand column sleeve, a frame body is fixed on the outer wall of the stand column sleeve, the front end of the frame body is located at the front ends of the first pivoting mechanism and the fifth pivoting mechanism, and the pivoting shafts of the first pivoting mechanism and the fifth pivoting mechanism are connected with the frame body.

And a deflection locking mechanism is arranged between the frame body and the upper left rocker arm or between the frame body and the upper right rocker arm.

The left side pull rod and the left hinged joint are connected through a first hinged structure, the first hinged structure comprises a fixed shaft arranged on the left hinged joint and a shaft sleeve which is arranged at the end part of the left pull rod and matched with the fixed shaft, a first bearing, a spacer bush and a second bearing are sequentially arranged on the fixed shaft, the shaft sleeve is sleeved on the first bearing and the second bearing, a threaded shaft is arranged at one section of the outer side of the fixed shaft, and a nut is screwed on the threaded shaft.

The shaft sleeve is arranged at the inner side of the right end of the left pull rod, the second rotating arm is arranged at the inner side of the left end of the left pull rod, an avoiding space is formed between the shaft sleeve and the second rotating arm, and the avoiding space is used for avoiding a left steering knuckle structure.

Preferably, the axis of the fixed shaft, the axis of the first rotating arm, and the axis of the first rotating arm relative to the axis of the left knuckle structure have one and only one intersection point.

The utility model discloses the technological effect that can reach is:

compared with the prior art, the high-speed reverse tricycle of the utility model has the advantages that through the design of the special structures of the left steering knuckle and the right steering knuckle, the upper end of the steering knuckle body is enabled to avoid the rim and the tire to extend above the front wheel, the lower end of the steering knuckle body can be accommodated in the rim, the distances from the upper left rocker arm and the upper right rocker arm to the lower left rocker arm and the lower right rocker arm are increased, the impact resistance and the integral bearing capacity are improved, the integral structure is more stable, and the tricycle is suitable for running at a high speed;

compared with the prior art, the first pivoting mechanism to the eleventh pivoting mechanism of the high-speed reverse tricycle realize hinged rotation through the bearing, so that the wear is small, and the operation is smoother;

compared with the prior art, the high-speed reverse tricycle of the utility model preferably adopts the special structure of the flange bearing, so that the axial clearance of the pivoting shafts of each pivoting mechanism is well controlled, thereby not only ensuring the stability and the fluency in operation, but also eliminating the problem of poor high-speed stability caused by the clearance of the pivoting mechanism;

compared with the prior art, the utility model discloses a reverse tricycle of high speed, because the use of compensation piece, can compensate manufacturing, processing, the assembly error of each pivot mechanism, avoided because error and tolerance accumulation arouse turn to the jamming, the action is not in the same direction as smooth class relevant problem, in addition, the increase of first hinge structure and dodge the setting in space, has increaseed the vehicle and has turned the extreme value of angle, side inclination angle.

Drawings

FIG. 1 is a schematic structural view of a high speed reverse tricycle of the present invention;

FIG. 2 is an exploded view of the high speed reverse tricycle of the present invention;

FIG. 3 is a schematic partial perspective view of the high speed reverse tricycle of the present invention;

FIG. 4 is an exploded view of the left steering knuckle, the upper left rocker arm, the lower left rocker arm and the left pull rod of the high-speed reverse tricycle of the present invention;

FIG. 5 is an exploded view of the high speed reverse tricycle of the present invention;

fig. 6 is a schematic structural view of a damping device and a yaw and steering mechanism according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a main frame according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a damping device and a yaw and steering mechanism according to a second embodiment of the present invention;

fig. 9 is a schematic structural view of a main frame in a second embodiment of the present invention;

fig. 10 is an exploded view of the high speed reverse tricycle of the present invention between the axle seat and the main frame;

fig. 11 is a perspective view of the axle seat of the high-speed reverse tricycle of the present invention;

fig. 12 is a sectional view of the eleventh and twelfth pivot mechanisms of the axle seat of the high-speed reverse tricycle of the present invention;

FIG. 13 is a cross-sectional view of the flange bearing of the high speed reverse tricycle of the present invention;

fig. 14 is a schematic structural view between the frame body and the upright post sleeve of the high-speed reverse tricycle of the present invention;

FIG. 15 is a perspective view of the universal steering mechanism of the high speed reverse tricycle of the present invention with a first articulation;

fig. 16 is an exploded perspective view of the universal steering mechanism with the first articulation structure of the high speed reverse tricycle of the present invention.

Detailed Description

The present invention provides a high-speed reverse tricycle, which is described in detail below with reference to the accompanying drawings and specific embodiments.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "inner", "outer", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered as the scope of the present invention without substantial changes in the technical content.

Referring to fig. 1 to 16, the present invention provides a high-speed reverse tricycle, including: the front-end steering device comprises a deflection and steering mechanism 1, a rear-section frame 2, a driving wheel 3 and two front wheels 4, wherein the deflection and steering mechanism 1 is arranged at the front end of the rear-section frame 2, the two front wheels 4 are connected with the deflection and steering mechanism 1, symmetrically arranged on the left side and the right side of the front end of the rear-section frame 2 and take the rear-section frame 2 as a symmetric axis, and the driving wheel 3 is arranged at the rear end of the rear-section frame 2.

Preferably, the yaw and steering mechanism 1 of the high-speed reverse tricycle comprises a main frame 5, a left front arm assembly and a right front arm assembly which are symmetrically arranged at two sides of the main frame 5,

the left front arm assembly comprises an upper left rocker arm 6, a lower left rocker arm 7 and a left steering knuckle structure 8, wherein the first end of the upper left rocker arm 6 is hinged to the main frame 5 through a first pivoting mechanism 9, the first end of the lower left rocker arm 7 is hinged to the main frame 5 through a second pivoting mechanism 10, and the second ends of the upper left rocker arm 6 and the lower left rocker arm 7 are hinged to the upper end and the lower end of the left steering knuckle structure 8 through a third pivoting mechanism 11 and a fourth pivoting mechanism 12 respectively;

the right front arm assembly comprises a right upper rocker arm 13, a right lower rocker arm 14 and a right knuckle structure 15, wherein the first end of the right upper rocker arm 13 is hinged with the main frame 5 through a fifth pivoting mechanism 16, the first end of the right lower rocker arm 14 is hinged with the main frame 5 through a sixth pivoting mechanism 17, and the second ends of the right upper rocker arm 13 and the right lower rocker arm 14 are hinged with the upper end and the lower end of the right knuckle structure 15 through a seventh pivoting mechanism 18 and an eighth pivoting mechanism 19 respectively;

the first pivoting mechanism 9 and the fifth pivoting mechanism 16 are coaxial, the second pivoting mechanism 10 and the sixth pivoting mechanism 17 are coaxial,

the left steering knuckle structure 8 and the right steering knuckle structure 15 are designed symmetrically and both comprise a steering knuckle body 20, the steering knuckle body 20 comprises a straight section 21 and a curved section 22, connecting ends 23 are respectively formed at the outer end of the straight section 21 and the outer end of the curved section 22, the straight section 21 is positioned in an internal space formed by a rim 24 of the front wheel 4, the curved section 22 avoids the rim 24 of the front wheel 4 and a tire 69 so that the outer end of the curved section 22 is positioned above the front wheel 4, and a wheel axle 25 of the front wheel 4 is fixed on the straight section 21;

the yaw and steering mechanism 1 of the high-speed reverse tricycle further comprises a steering structure, the steering structure comprises a steering column 26 and a universal steering mechanism 27, the steering column 26 penetrates through the main frame 5, an axle seat 28 is arranged at the lower end of the steering column 26, the middle part of the universal steering mechanism 27 is arranged on the axle seat 28 through an eleventh pivoting mechanism 29, and the left end and the right end of the universal steering mechanism 27 are respectively connected with a ninth pivoting mechanism 30 arranged at the front end of the steering knuckle body 20 of the left steering knuckle structure 8 and a tenth pivoting mechanism 31 arranged at the front end of the steering knuckle body 20 of the right steering knuckle structure 15; the upper end of the steering column 26 is provided with a handlebar 32;

a damping device is arranged between the left upper rocker arm 6 and the right upper rocker arm 13 or between the left lower rocker arm 7 and the right lower rocker arm 14.

Preferably, the universal steering mechanism 27 includes a left pull rod 33, a right pull rod 34 and an eleventh pivot mechanism 29, the eleventh pivot mechanism 29 is disposed between the left pull rod 33 and the right pull rod 34, the eleventh pivot mechanism 29 includes a hinge shaft 35, a lower end of the hinge shaft 35 is disposed in the shaft seat 28 through a twelfth pivot mechanism 93, the left pull rod 33 connects the ninth pivot mechanism 30 and the eleventh pivot mechanism 29, and the right pull rod 34 connects the tenth pivot mechanism 31 and the eleventh pivot mechanism 29.

Preferably, the left pull rod 33 and the right pull rod 34 are arranged in the same plane.

Preferably, the eleventh pivoting mechanism 29 includes a left hinge joint 78 disposed at the inner end of the left pull rod 33, a right hinge joint 79 disposed at the inner end of the right pull rod 34, and a hinge shaft 35, the left hinge joint 78 and the right hinge joint 79 are both of a forked structure, a hinge sleeve 80 is disposed at the upper end of the hinge shaft 35, the left hinge joint 78 is disposed in the right hinge joint 79, the hinge sleeve 80 is disposed in the left hinge joint 78, the eleventh pivoting mechanism 29 is symmetrically designed with the hinge sleeve 80 as a center, a first hinge hole 81 is disposed on the left hinge joint 78, a second hinge hole 82 is disposed on the right hinge joint 79, and the first hinge hole 81, the second hinge hole 82 and the hinge sleeve 80 are coaxially disposed; flange bearings 83 are arranged in the second hinge holes 82 and the hinge sleeve 80, each flange bearing 83 comprises an inner ring 84, an outer ring 85 and a steel ball 86, a flange 87 is formed at one end of the outer ring 85, an extending end 88 is axially and outwardly arranged at one end of the flange 87 matched with the outer ring 85, the flange bearing in the second hinge hole 82 of the right hinge joint 79 and the extending end 88 of the flange bearing 83 in the hinge sleeve 80 abut against the inner end surface and the outer end surface of the left hinge joint 78 respectively, the flange 87 of the flange bearing 83 in the second hinge hole 82 of the right hinge joint 79 abuts against the end surface of the right hinge joint 79 adjacent to the left hinge joint 78, and the flange 87 of the flange bearing 83 in the hinge sleeve 80 abuts against the outer end surface of the hinge sleeve 80; a bolt 89 passes through the inner hole 90 of the flange bearing 83 on one side of the right joint 79, the first hinge hole 81 of the left joint 78 and the inner hole 90 of the flange bearing 83 in the hinge sleeve 80, and a nut 91 is screwed at the outer end of the bolt 89, and the nut 91 abuts against the inner ring 84 of the flange bearing 83 on the other side of the right joint 79.

Preferably, a waterproof ring 92 is arranged in a gap between the left hinged joint 78 and the right hinged joint 79 and a gap between the left hinged joint 78 and the hinged sleeve 80.

Preferably, the twelfth pivot mechanism 93 includes an upper mounting groove 94, a lower mounting groove 95 and a spacer hole 96 connecting the upper mounting groove 94 and the lower mounting groove 95 on the shaft seat 28, the upper mounting groove 94, the lower mounting groove 95 and the spacer hole 96 are coaxially arranged, the upper mounting groove 94 and the lower mounting groove 95 are vertically symmetrically arranged with the spacer hole 96 as a center, the inner diameter of the spacer hole 96 is smaller than the inner diameters of the upper mounting groove 94 and the lower mounting groove 95, compensation blocks 97 are respectively arranged in the upper mounting groove 94 and the lower mounting groove 95, the compensation blocks 97 are made of an elastic material, a bearing hole 98 is arranged at the center of the compensation blocks 97, the inner diameter of the bearing hole 98 is consistent with the inner diameter of the spacer hole 96, a flange bearing 83 is embedded in the bearing hole 98, the flange bearing 83 includes an inner ring 84, an outer ring 85 and steel balls 86, a flange 87 is formed at one end of the outer ring 85, an extending end 88 is axially outwardly arranged at one end of the inner ring 84 matching the flange, a gasket 99 is arranged on the outer end face of the compensation block 97, and the flange 87 abuts against the gasket 99; an inner spacer 100 and an outer spacer 101 are arranged in the spacer hole 96, the upper end and the lower end of the inner spacer 100 are respectively abutted against the inner end faces of the inner rings 84 of the two flange bearings 83, and the upper end and the lower end of the outer spacer 101 are respectively abutted against the inner end faces of the outer rings 85 of the two flange bearings 83; the hinge shaft 35 sequentially penetrates through an inner hole of the flange bearing 83 in the upper mounting groove 94, an inner hole of the inner spacer 100 and an inner hole of the flange bearing 83 in the lower mounting groove 95 from top to bottom, a step ring 102 is arranged at the upper end of the hinge shaft 35, the step ring 102 abuts against the extending end 88 of the flange bearing 83 in the upper mounting groove 94, threads are arranged at the lower end of the hinge shaft 35, the nut 103 is fixed with the hinge shaft 35 in a threaded manner through the threads, and the nut 103 abuts against the extending end 88 of the flange bearing 83 in the lower mounting groove 95. The utility model discloses a reverse tricycle of high speed is at the turn in-process, and the left pull rod 33 of universal steering mechanism 27, right pull rod 34 can be followed self axis and taken place to twist reverse, and this has led to articulated shaft 35 can take place the beat, so, compensation piece 97 among the twelfth pivot mechanism 93 allows and has compensated this kind of beat.

Preferably, the third pivot mechanism 11, the fourth pivot mechanism 12, the seventh pivot mechanism 18 and the eighth pivot mechanism 19 are structurally identical, and each of the third pivot mechanism 11, the fourth pivot mechanism 12 and the eighth pivot mechanism 19 includes a rotating sleeve 36, a first shaft 37 and a second shaft 38, a bearing 39 is disposed in the rotating sleeve 36, the first shaft 37 passes through the rotating sleeve 36 and the bearing 39 so that the rotating sleeve 36 is hinged to the connecting end 23, the second ends of the left upper rocker arm 6, the left lower rocker arm 7, the right upper rocker arm 13 and the right lower rocker arm 14 are each provided with a hinge portion 40 of an articulated fork type, the hinge portions 40 are hinged to the rotating sleeve 36 through the second shaft 38 and a third shaft 77, bearings 41 are respectively disposed on the second shaft 38 and the third shaft 77, and the bearings 41 are; the second shaft 38 and the third shaft 77 are coaxially arranged. Preferably, the bearing 39 is a tapered roller bearing.

Preferably, the ninth pivoting mechanism 30 and the tenth pivoting mechanism 31 have the same structure, and each of the ninth pivoting mechanism and the tenth pivoting mechanism includes a first rotating arm 42 connected to the knuckle body 20 through a bearing, and a second rotating arm 43 connected to an outer end of the first rotating arm 42 through a bearing 68, and the second rotating arm 43 is fixedly connected to the left pull rod 33 or the right pull rod 34.

In the in-service use process, the condition that needs bigger angle of rotation, bigger roll angle degree may exist, under this condition, the utility model discloses connect through first hinge structure 110 between left pull rod 33 and left articulated joint 78, first hinge structure 110 is including setting up fixed axle 111 on left articulated joint 78 and setting up at the axle sleeve 112 that matches with fixed axle 111 of left pull rod 33 tip, be equipped with first bearing 113, spacer 114 and second bearing 115 on the fixed axle 111 in proper order, axle sleeve 112 cover is established on first bearing 113 and second bearing 115, and one section threaded shaft that is in the outside of fixed axle 111, nut 116 spiro union are on threaded shaft.

The shaft sleeve 112 is located on the inner side of the right end of the left pull rod 33, the second rotating arm 43 is located on the inner side of the left end of the left pull rod 33, an avoiding space 117 is formed between the shaft sleeve 112 and the second rotating arm 43, and the avoiding space 117 is used for avoiding the left steering knuckle structure 8. The avoidance space 117 allows the left knuckle structure 8 to have a larger movement space, increasing the vehicle roll angle and the angle of left-right steering.

Preferably, there is only one intersection point of the axis 118 of the fixed shaft 111, the axis 119 of the first rotating arm 42 relative to the second rotating arm 43, and the axis 120 of the first rotating arm 42 relative to the left knuckle structure 8.

Accordingly, the structure between the right pull rod 34 and the right joint 79 is the same as that between the left pull rod 33 and the left joint 78, and the description thereof is omitted.

The axle seat 28 includes a connecting member 70, an upright sleeve 71 disposed at one end of the connecting member 70, and a shaft sleeve 72 disposed at the other end of the connecting member 70, the steering upright 26 is fixed to the upright sleeve 71 in a matching manner, the eleventh pivoting mechanism 29 is mounted in the shaft sleeve 72, a left limit block 73 and a right limit block 74 are disposed on the periphery of the upright sleeve 71, and the left limit block 73 and the right limit block 74 are respectively matched with a left stop block 75 and a right stop block 76 on the main frame 5 in a corresponding manner. Through the mutual matching of the left limiting block 73 and the right limiting block 74, the left stop block 75 and the right stop block 76, the steering column 26 has a safe rotation angle range when driving the shaft seat 28 to rotate, and the generation of unsafe factors caused by too large rotation angle is avoided.

And limiting lugs 104 are respectively arranged on the main frame 5 below the left upper rocker arm 6 and the right upper rocker arm 13. The limiting bump 104 enables the left front arm assembly and the right front arm assembly to have the limitation of the deflection angle of the vertical position when deflecting, and avoids the generation of unsafe factors of the vehicle caused by the overlarge deflection angle.

Fig. 7 shows a main frame of a high-speed reverse tricycle according to a first embodiment of the present invention, which includes a main beam a44, the main beam a44 includes a main beam body a45, a lower end of the main beam body a45 is provided with two lower mounting grooves a46 for accommodating the second end of the lower left rocker arm 7 and the second end of the lower right rocker arm 14, and an upper end of the main beam body a45 is provided with an upper mounting groove a47 and a mounting end a48 for accommodating the second end of the upper left rocker arm 6 and the second end of the upper right rocker arm 13; an opening 49 is formed in the front end of the middle of the beam main body A45, an extension beam 50 is arranged at the front end of the opening 49, and a containing groove 51 is formed between the extension beam 50 and the opening 49; the rear end of the beam main body A45 is provided with a support beam A52 connected with the rear section frame 2.

Fig. 6 is the utility model discloses the reverse tricycle's of first embodiment high speed damping device, including left damper 53, right damper 54 and support piece 55, left damper 53, right damper 54's lower extreme articulates respectively at left lower rocking arm 7 or left upper rocking arm 6, right lower rocking arm 14 or right upper rocking arm 13 through the bearing, and the upper end articulates respectively at support piece 55's both ends through the bearing, support piece 55's centre articulates in holding tank 51 through support piece beat bearing. When the high-speed reverse tricycle turns to the left, the left rocker arm assembly deflects upwards around the corresponding pivot mechanism, and the right rocker arm assembly deflects downwards around the corresponding pivot mechanism, namely: the left steering knuckle structure rises, the right steering knuckle structure falls, at the moment, under the linkage action of swing of the rocker arm, the left damping assembly rises, the right damping assembly falls, the supporting piece deflects around the supporting piece swing bearing, and when the corresponding high-speed reverse tricycle turns to the right, the principle is the same as the above.

Fig. 9 shows a main frame of a high-speed reverse tricycle according to a second embodiment of the present invention, which includes a main beam B56, wherein the main beam B56 includes a main beam body B57, the lower end of the main beam body B57 is provided with two lower mounting grooves B58 for accommodating the second end of the lower left rocker arm 7 and the second end of the lower right rocker arm 14, the upper end of the main beam body B57 is provided with an upper mounting groove B59 and a mounting end B60 for accommodating the second end of the upper left rocker arm 6 and the second end of the upper right rocker arm 13, and the lower mounting groove 493b 2 at the front side of the lower end of the main beam body B57 is formed by a bracket 61 fixed at a distance from the front end of the main beam body B57 to the front end of the; the rear end of the beam main body B57 is provided with a support beam B62 connected with the rear section frame 2; the beam main body B57 is provided with a through hole 63.

Fig. 8 shows a shock absorbing device for a high-speed reverse tricycle according to a second embodiment of the present invention, which includes two supporting seats 67, wherein two ends of a shock absorbing assembly 64 are respectively hinged to the two supporting seats 67, and the shock absorbing assembly 64 is inserted into the through hole 63; the two supporting seats 67 are respectively fixed on the left lower rocker arm 7 or the left upper rocker arm 6, the right lower rocker arm 14 or the right upper rocker arm 13.

The axle 25 of the front wheel 4 is inserted into the axle hole 65 of the knuckle body 20, the axle hole 65 is an open hole, and the axle hole 65 is held by the first axle 37 of the fourth pivot mechanism 12 or the eighth pivot mechanism 19 at the lower end of the knuckle body 20 and the axle 25 by a screw 66. And the center of the connecting end of the upper end of the knuckle body 20 is provided with an open shaft hole 109, and the open shaft hole 109 is tightly held by the first shafts 37 of the third pivoting mechanism 11 and the seventh pivoting mechanism 18 through screws 66.

Referring to fig. 14, the main frame 5 is provided with a column sleeve 105, the steering column 26 is disposed through the column sleeve 105, a frame body 106 is fixed on an outer wall of the column sleeve 105, a front end of the frame body 106 is located at front ends of the first pivoting mechanism 9 and the fifth pivoting mechanism 16, and a pivoting shaft 107 of the first pivoting mechanism 9 and the fifth pivoting mechanism 16 is connected to the frame body 106.

A deflection locking mechanism 108 is arranged between the frame body 106 and the left upper rocker arm 13 or between the frame body 106 and the right upper rocker arm 6. The frame 106 can provide support for the left and right rocker arm assemblies while serving as a support for the yaw lock mechanism 108.

All the related bearings of the utility model are preferably in a flange bearing 83 structure.

The foregoing description of the preferred embodiments of the invention has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously, many modifications and variations may be made which will be apparent to those skilled in the art and are intended to be included within the scope of the invention as defined by the following claims.

Claims

1. A high speed reverse tricycle, comprising: the front-end steering device comprises a deflection and steering mechanism, a rear-section frame, a driving wheel and two front wheels, wherein the deflection and steering mechanism is arranged at the front end of the rear-section frame;

the method is characterized in that: the left steering knuckle structure and the right steering knuckle structure are symmetrically designed and comprise steering knuckle bodies, each steering knuckle body comprises a straight section and a curved section, connecting ends are formed at the outer end of the straight section and the outer end of the curved section respectively, the straight sections are located in an inner space formed by a rim of a front wheel, the curved sections avoid the rim and a tire of the front wheel to enable the outer ends of the curved sections to be located above the front wheel, and a wheel shaft of the front wheel is fixed on the straight sections;

the high-speed reverse tricycle further comprises a steering structure, the steering structure comprises a steering upright post and a universal steering mechanism, the steering upright post is arranged on the main frame in a penetrating mode, an axle seat is arranged at the lower end of the steering upright post, the middle of the universal steering mechanism is arranged on the axle seat through an eleventh pivoting mechanism, and the left end and the right end of the universal steering mechanism are respectively connected with a ninth pivoting mechanism arranged at the front end of a steering knuckle body of the left steering knuckle structure and a tenth pivoting mechanism arranged at the front end of a steering knuckle body of the right steering knuckle structure; a handlebar is arranged at the upper end of the steering column;

a damping device is arranged between the upper left rocker arm and the upper right rocker arm or between the lower left rocker arm and the lower right rocker arm;

the universal steering mechanism comprises a left pull rod, a right pull rod and an eleventh pivoting mechanism, the eleventh pivoting mechanism is arranged between the left pull rod and the right pull rod, the eleventh pivoting mechanism comprises a hinged shaft, the lower end of the hinged shaft is arranged in a shaft seat through a twelfth pivoting mechanism, the left pull rod is connected with the ninth pivoting mechanism and the eleventh pivoting mechanism, and the right pull rod is connected with the tenth pivoting mechanism and the eleventh pivoting mechanism;

the twelfth pivoting mechanism comprises an upper mounting groove, a lower mounting groove and a sleeve separating hole which connects the upper mounting groove and the lower mounting groove on the shaft seat, the upper mounting groove, the lower mounting groove and the sleeve separating hole are coaxially arranged, the upper mounting groove and the lower mounting groove are arranged up and down symmetrically by taking the sleeve separating hole as the center, the inner diameter of the sleeve separating hole is smaller than that of the upper mounting groove and the lower mounting groove, the upper mounting groove and the lower mounting groove are respectively provided with a compensation block which is made of elastic material, the center of the compensation block is provided with a bearing hole, the inner diameter of the bearing hole is consistent with that of the spacer bush hole, a flange bearing is embedded in the bearing hole, the flange bearing comprises an inner ring, an outer ring and steel balls, wherein a flange is formed at one end of the outer ring, an extending end is arranged at one end, matched with the flange of the outer ring, of the inner ring along the axial direction, the extending end is outwards arranged, a gasket is arranged on the outer end face of the compensating block, and the flange abuts against the gasket; an inner spacer sleeve and an outer spacer sleeve are arranged in the spacer sleeve hole, the upper end and the lower end of the inner spacer sleeve respectively abut against the inner end faces of the inner rings of the two flange bearings, and the upper end and the lower end of the outer spacer sleeve respectively abut against the inner end faces of the outer rings of the two flange bearings; the hinge shaft sequentially penetrates through an inner hole of the flange bearing in the upper mounting groove, an inner hole of the inner spacer sleeve and an inner hole of the flange bearing in the lower mounting groove from top to bottom, a step ring is arranged at the upper end of the hinge shaft and abuts against the extending end of the flange bearing in the upper mounting groove, threads are arranged at the lower end of the hinge shaft, the nut is fixed with the hinge shaft in a threaded manner through the threads, and the nut abuts against the extending end of the flange bearing in the lower mounting groove; all be connected through first hinge structure between left side pull rod and the left hinged joint, between right pull rod and the right hinged joint, first hinge structure is including setting up the fixed axle on left hinged joint or right hinged joint and setting up the axle sleeve that matches with the fixed axle at left pull rod tip or right pull rod tip, be equipped with first bearing, spacer and second bearing on the fixed axle in proper order, the axle sleeve cover is established on first bearing and second bearing, and one section threaded shaft that is in the outside of fixed axle, nut spiro union are on the threaded shaft.

2. A high speed reversing tricycle according to claim 1 wherein: the eleventh pivoting mechanism comprises a left hinge joint arranged at the inner end of the left pull rod, a right hinge joint arranged at the inner end of the right pull rod and a hinge shaft, the left hinge joint and the right hinge joint are of a fork-shaped structure, a hinge sleeve is arranged at the upper end of the hinge shaft, the left hinge joint is positioned in the right hinge joint, the hinge sleeve is positioned in the left hinge joint, the eleventh pivoting mechanism is symmetrically designed by taking the hinge sleeve as the center, a first hinge hole is arranged on the left hinge joint, a second hinge hole is arranged on the right hinge joint, and the first hinge hole, the second hinge hole and the hinge sleeve are coaxially arranged; the flange bearings are arranged in the second hinge holes and the hinge sleeves respectively, each flange bearing comprises an inner ring, an outer ring and a steel ball, a flange is formed at one end of the outer ring, an extending end is arranged at one end, matched with the flange of the outer ring, of the inner ring in an axially outward mode, the flange bearing in the second hinge hole of the right hinge joint and the extending end of the flange bearing in the hinge sleeve respectively abut against the inner end face and the outer end face of the left hinge joint, the flange of the flange bearing in the second hinge hole of the right hinge joint abuts against the end face, adjacent to the left hinge joint, of the right hinge joint, and the flange of the flange bearing in the hinge sleeve abuts against the outer end face of the hinge sleeve; and a bolt penetrates through an inner hole of the flange bearing on one side of the right hinged joint, the first hinged hole of the left hinged joint and an inner hole of the flange bearing in the hinged sleeve, a nut is screwed at the outer end of the bolt, and the nut abuts against an inner ring of the flange bearing on the other side of the right hinged joint.

3. A high speed reversing tricycle according to claim 1 wherein: the third pivoting mechanism, the fourth pivoting mechanism, the seventh pivoting mechanism and the eighth pivoting mechanism are consistent in structure and respectively comprise a rotating sleeve, a first shaft and a second shaft, a bearing is arranged in the rotating sleeve, the first shaft penetrates through the rotating sleeve and the bearing to enable the rotating sleeve to be hinged to the connecting end, hinged parts of a pitch fork type are arranged at the second ends of the upper left rocker arm, the lower left rocker arm, the upper right rocker arm and the lower right rocker arm, the hinged parts are hinged to the rotating sleeve through the second shaft and the third shaft, the bearings are respectively sleeved on the second shaft and the third shaft, and the bearings are arranged in the hinged parts; the second shaft and the third shaft are arranged coaxially.

4. A high speed reversing tricycle according to claim 2 wherein: the ninth pivoting mechanism is consistent with the tenth pivoting mechanism in structure and comprises a first rotating arm connected with the steering knuckle body through a bearing and a second rotating arm connected with the outer end of the first rotating arm through a bearing, and the second rotating arm is fixedly connected with the left pull rod or the right pull rod.

5. A high speed reversing tricycle according to claim 4 wherein: the shaft sleeve is arranged on the inner side of the right end of the left pull rod or the right pull rod, the second rotating arm is arranged on the inner side of the left end of the left pull rod or the right pull rod, an avoiding space is formed between the shaft sleeve and the second rotating arm, and the avoiding space is used for avoiding a left steering knuckle structure or a right steering knuckle structure.

6. A high speed reversing tricycle according to claim 1 or 5 wherein: the axis of the fixed shaft, the axis of the first rotating arm and the axis of the first rotating arm relative to the left steering knuckle structure or the right steering knuckle structure have only one intersection point.

7. A high speed reversing tricycle according to claim 1 wherein: the shaft seat comprises a connecting piece, an upright post sleeve arranged at one end of the connecting piece and a shaft sleeve arranged at the other end of the connecting piece, the steering upright post and the upright post sleeve are matched and fixed, the eleventh pivoting mechanism is arranged in the shaft sleeve, a left limiting block and a right limiting block are arranged on the periphery of the upright post sleeve, and the left limiting block and the right limiting block are respectively correspondingly matched with a left stop block and a right stop block on the main frame; and limiting lugs are respectively arranged on the main frame below the upper left rocker arm and the upper right rocker arm.

8. A high speed reversing tricycle according to claim 1 wherein: the main frame comprises a main beam A, the main beam A comprises a beam main body A, the lower end of the beam main body A is provided with two lower mounting grooves A for accommodating the second ends of the left lower rocker arm and the right lower rocker arm, and the upper end of the beam main body A is provided with an upper mounting groove A and a mounting end A for accommodating the second end of the left upper rocker arm and the second end of the right upper rocker arm; an opening is formed in the front end of the middle of the beam main body A, an extension beam is arranged at the front end of the opening, and an accommodating groove is formed between the extension beam and the opening; the rear end of the beam main body A is provided with a support beam A connected with a rear-section frame; damping device includes left damper assembly, right damper assembly and support piece, left side damper assembly, right damper assembly's lower extreme articulates respectively at left lower rocking arm or upper left rocking arm, lower right rocking arm or upper right rocking arm through the bearing, and the upper end articulates respectively at support piece's both ends through the bearing, support piece's centre is articulated in the holding tank through support piece beat bearing.

9. The high-speed reverse tricycle according to claim 1, wherein the main frame includes a main beam B, the main beam B includes a beam body B, the lower end of the beam body B is provided with two lower mounting grooves B for accommodating the second ends of the left and right lower rocker arms, the upper end of the beam body B is provided with an upper mounting groove B and a mounting end B for accommodating the second ends of the left and right upper rocker arms, the lower mounting groove B at the front side of the lower end of the beam body B is formed by a bracket fixed at the front end of the beam body B and spaced from the front end of the lower part of the beam body B; the rear end of the beam main body B is provided with a supporting beam B connected with a rear-section frame; the beam main body B is provided with a through hole; the damping device comprises two supporting seats, two ends of a damping assembly are respectively hinged to the two supporting seats, and the damping assembly penetrates through the through hole; the two supporting seats are respectively fixed on the left lower rocker arm or the left upper rocker arm, the right lower rocker arm or the right upper rocker arm.

10. A high speed reversing tricycle according to claim 3 wherein: the axle shaft of the front wheel is inserted into the axle hole of the steering knuckle body, the axle hole is an open hole, and the axle hole is tightly held by the axle shaft and the first shaft of the fourth pivoting mechanism or the eighth pivoting mechanism at the lower end of the steering knuckle body through screws.

11. A high speed reversing tricycle according to claim 1 wherein: the main frame is provided with an upright post sleeve, the steering upright post penetrates through the upright post sleeve, a frame body is fixed on the outer wall of the upright post sleeve, the front end of the frame body is positioned at the front ends of the first pivoting mechanism and the fifth pivoting mechanism, and the pivoting shafts of the first pivoting mechanism and the fifth pivoting mechanism are connected with the frame body; and a deflection locking mechanism is arranged between the frame body and the upper left rocker arm or between the frame body and the upper right rocker arm.